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Radioactive iodine therapy linked to later malignancy
, including breast cancer, according to a new analysis of the United States SEER cancer registries.
The study included data from 36,311 patients between 1975 and 2017. Among 5-year differentiated thyroid cancer survivors, over a median follow-up of 15.6 years, radioactive iodine treatment was linked to a 23% increased risk of solid tumors. Among 20-year survivors, there was a 47% increased risk in solid tumors and a 46% increased risk of breast cancer. Two-year survivors had a 51% increased risk of hematologic malignancies, including a 92% increased risk of leukemia. The researchers estimate that 6% of all solid tumors, 5% of breast tumors, and 14% of hematologic malignancies among differentiated thyroid cancer patients who have survived at least 1 year are attributable to radioactive iodine (RAI).
“Our study is not the first to show an increased risk of leukemia or solid cancer after RAI therapy, although some may be surprised about the increased risk of breast cancer, which was not observed in some earlier studies on this topic. The large size of our study, our focus on younger patients (who are more susceptible to the late effects of radiation therapy than older patients), and more than 40 years of follow-up, enabled us to provide more precise estimates of these risks. Our findings were not surprising given current understanding of the long-term, carcinogenic effects of radiation exposure,” said lead author Cari Kitahara, PhD, senior investigator in the division of cancer epidemiology and genetics at National Cancer Institute. The risk estimates also are similar to previous studies of exposure to medial and nonmedical radiation sources, she added.
Although radioactive iodine has seen an increase in use for treatment of differentiated thyroid cancer, there is little evidence that it improves outcomes in localized differentiated thyroid cancer, and the American Thyroid Association guidelines recommend against radioactive iodine therapy for low-risk differentiated thyroid cancers smaller than 1 cm, and lower radiation levels for larger tumors. The pediatric guideline suggests a similar approach, except that it doesn’t discourage use of RAI in low-risk differentiated thyroid cancers.
“Physicians should discuss the overall balance of risks and benefits of RAI therapy with their patients. Although RAI has been used in the management of thyroid cancer for many decades, clinical practice guidelines have changed over time and now encourage avoidance of unnecessary or excessive use of RAI therapy for low-risk tumors. Our results suggest that even greater caution and more consideration of the late effects of RAI therapy are needed for younger patients, who are more vulnerable to the carcinogenic effects of radiation exposure and are more likely to experience these long-term effects than older adults,” Dr. Kitahara said.
The study was funded by the National Cancer Institute. Dr. Kitahara has no relevant financial disclosures.
, including breast cancer, according to a new analysis of the United States SEER cancer registries.
The study included data from 36,311 patients between 1975 and 2017. Among 5-year differentiated thyroid cancer survivors, over a median follow-up of 15.6 years, radioactive iodine treatment was linked to a 23% increased risk of solid tumors. Among 20-year survivors, there was a 47% increased risk in solid tumors and a 46% increased risk of breast cancer. Two-year survivors had a 51% increased risk of hematologic malignancies, including a 92% increased risk of leukemia. The researchers estimate that 6% of all solid tumors, 5% of breast tumors, and 14% of hematologic malignancies among differentiated thyroid cancer patients who have survived at least 1 year are attributable to radioactive iodine (RAI).
“Our study is not the first to show an increased risk of leukemia or solid cancer after RAI therapy, although some may be surprised about the increased risk of breast cancer, which was not observed in some earlier studies on this topic. The large size of our study, our focus on younger patients (who are more susceptible to the late effects of radiation therapy than older patients), and more than 40 years of follow-up, enabled us to provide more precise estimates of these risks. Our findings were not surprising given current understanding of the long-term, carcinogenic effects of radiation exposure,” said lead author Cari Kitahara, PhD, senior investigator in the division of cancer epidemiology and genetics at National Cancer Institute. The risk estimates also are similar to previous studies of exposure to medial and nonmedical radiation sources, she added.
Although radioactive iodine has seen an increase in use for treatment of differentiated thyroid cancer, there is little evidence that it improves outcomes in localized differentiated thyroid cancer, and the American Thyroid Association guidelines recommend against radioactive iodine therapy for low-risk differentiated thyroid cancers smaller than 1 cm, and lower radiation levels for larger tumors. The pediatric guideline suggests a similar approach, except that it doesn’t discourage use of RAI in low-risk differentiated thyroid cancers.
“Physicians should discuss the overall balance of risks and benefits of RAI therapy with their patients. Although RAI has been used in the management of thyroid cancer for many decades, clinical practice guidelines have changed over time and now encourage avoidance of unnecessary or excessive use of RAI therapy for low-risk tumors. Our results suggest that even greater caution and more consideration of the late effects of RAI therapy are needed for younger patients, who are more vulnerable to the carcinogenic effects of radiation exposure and are more likely to experience these long-term effects than older adults,” Dr. Kitahara said.
The study was funded by the National Cancer Institute. Dr. Kitahara has no relevant financial disclosures.
, including breast cancer, according to a new analysis of the United States SEER cancer registries.
The study included data from 36,311 patients between 1975 and 2017. Among 5-year differentiated thyroid cancer survivors, over a median follow-up of 15.6 years, radioactive iodine treatment was linked to a 23% increased risk of solid tumors. Among 20-year survivors, there was a 47% increased risk in solid tumors and a 46% increased risk of breast cancer. Two-year survivors had a 51% increased risk of hematologic malignancies, including a 92% increased risk of leukemia. The researchers estimate that 6% of all solid tumors, 5% of breast tumors, and 14% of hematologic malignancies among differentiated thyroid cancer patients who have survived at least 1 year are attributable to radioactive iodine (RAI).
“Our study is not the first to show an increased risk of leukemia or solid cancer after RAI therapy, although some may be surprised about the increased risk of breast cancer, which was not observed in some earlier studies on this topic. The large size of our study, our focus on younger patients (who are more susceptible to the late effects of radiation therapy than older patients), and more than 40 years of follow-up, enabled us to provide more precise estimates of these risks. Our findings were not surprising given current understanding of the long-term, carcinogenic effects of radiation exposure,” said lead author Cari Kitahara, PhD, senior investigator in the division of cancer epidemiology and genetics at National Cancer Institute. The risk estimates also are similar to previous studies of exposure to medial and nonmedical radiation sources, she added.
Although radioactive iodine has seen an increase in use for treatment of differentiated thyroid cancer, there is little evidence that it improves outcomes in localized differentiated thyroid cancer, and the American Thyroid Association guidelines recommend against radioactive iodine therapy for low-risk differentiated thyroid cancers smaller than 1 cm, and lower radiation levels for larger tumors. The pediatric guideline suggests a similar approach, except that it doesn’t discourage use of RAI in low-risk differentiated thyroid cancers.
“Physicians should discuss the overall balance of risks and benefits of RAI therapy with their patients. Although RAI has been used in the management of thyroid cancer for many decades, clinical practice guidelines have changed over time and now encourage avoidance of unnecessary or excessive use of RAI therapy for low-risk tumors. Our results suggest that even greater caution and more consideration of the late effects of RAI therapy are needed for younger patients, who are more vulnerable to the carcinogenic effects of radiation exposure and are more likely to experience these long-term effects than older adults,” Dr. Kitahara said.
The study was funded by the National Cancer Institute. Dr. Kitahara has no relevant financial disclosures.
FROM THE JOURNAL OF CLINICAL ONCOLOGY
Nedaplatin chemo proves to be a less toxic option for nasopharyngeal carcinoma
Patients with stage II to IVB nasopharyngeal carcinoma who were treated with nedaplatin-based concurrent chemoradiotherapy, achieved 5-year survival rates comparable to those of patients treated with cisplatin chemoradiotherapy, but with fewer toxic effects, shows a study in JAMA Network Open.
The findings confirm that , wrote authors who were led by Lin-Quan Tang, MD, PhD, Sun Yat-sen University Cancer Center, Guangzhou, China.
While the National Comprehensive Cancer Network recommends radiotherapy administered concurrently with 100 mg/m2 of cisplatin every 3 weeks for patients with stage II to IVB nasopharyngeal carcinoma, the addition of cisplatin-based chemotherapy to radiotherapy increases the frequency of treatment-related toxic effects. They include severe gastrointestinal responses, hearing deficits, renal toxic effects, and neurotoxic effects, decreasing treatment adherence and patient quality of life. An antitumor drug with similar therapeutic efficacy to cisplatin but with reduced adverse effects is needed urgently, authors wrote.
The cisplatin analogue nedaplatin, designed to decrease the nephrotoxic and gastrointestinal toxic effects seen with cisplatin, has antitumor mechanisms and efficacy similar to cisplatin. It has demonstrated effectiveness and tolerability in various malignant tumors, and has, in vitro, shown potential as a radiosensitizing agent with nasopharyngeal carcinoma and cervical squamous cell carcinoma cells.
In the initial 2-year results of the phase 3 randomized trial in this population of patients with stage II to IVB nasopharyngeal carcinoma, nedaplatin-based concurrent chemoradiotherapy was noninferior to cisplatin-based concurrent chemoradiotherapy with differences of 1.9% and 1.0% (P = .005 and P = .002), in the intention-to-treat and per-protocol analyses of progression-free survival, respectively. Patients (n = 402) were randomly assigned (1:1) to receive nedaplatin (100 mg/m2)– or cisplatin (100 mg/m2)–based chemotherapy every 3 weeks for three cycles concurrently with intensity-modulated radiotherapy. Information on long-term follow-up and late toxic effects was limited.
In the current analysis of 402 patients (about 25% female, median age 44.5 years), the intention-to-treat 5-year progression-free survival rate was 81.4% (95% CI, 75.9%-86.9%) for the cisplatin group and 79.8% (95% CI, 74.1%-85.5%) for the nedaplatin group, with a difference of 1.6% (95% CI, −6.3% to 9.5%; P = .002 for noninferiority). No significant survival differences were observed between the cisplatin and nedaplatin groups for 5-year overall survival (89.4% vs. 88.8%; P = .63), distant metastasis–free survival (85.9% vs. 90.4%, P = .17), and locoregional relapse–free survival (92.6% vs. 89.6%; P = .17) rates.
The incidence of grade 3 and 4 auditory toxic effects was higher in the cisplatin group than in the nedaplatin group (35 [17.7%] vs. 21 [10.5%], P = .04). Also, the cumulative incidence of grade 3-4 auditory toxic effects was higher in the cisplatin group versus patients in the nedaplatin group (19.9% vs. 12.0%; P = .42). The odds ratio, in a post hoc regression analysis, for auditory toxic effects was 0.51 (0.51; 95% CI, 0.28-0.93; P = .03) for patients in the nedaplatin group.
The findings, the authors concluded, confirm that nedaplatin-based concurrent chemoradiotherapy could be an alternative to cisplatin-based concurrent chemoradiotherapy as doublet therapy for II to IVB nasopharyngeal carcinoma. The potential of nedaplatin in combination drug chemotherapy for nasopharyngeal carcinoma in the induction or adjuvant phase needs to be explored in further investigations, the authors added.
The study was funded by multiple grants; the study investigator reported no conflicts of interest.
Patients with stage II to IVB nasopharyngeal carcinoma who were treated with nedaplatin-based concurrent chemoradiotherapy, achieved 5-year survival rates comparable to those of patients treated with cisplatin chemoradiotherapy, but with fewer toxic effects, shows a study in JAMA Network Open.
The findings confirm that , wrote authors who were led by Lin-Quan Tang, MD, PhD, Sun Yat-sen University Cancer Center, Guangzhou, China.
While the National Comprehensive Cancer Network recommends radiotherapy administered concurrently with 100 mg/m2 of cisplatin every 3 weeks for patients with stage II to IVB nasopharyngeal carcinoma, the addition of cisplatin-based chemotherapy to radiotherapy increases the frequency of treatment-related toxic effects. They include severe gastrointestinal responses, hearing deficits, renal toxic effects, and neurotoxic effects, decreasing treatment adherence and patient quality of life. An antitumor drug with similar therapeutic efficacy to cisplatin but with reduced adverse effects is needed urgently, authors wrote.
The cisplatin analogue nedaplatin, designed to decrease the nephrotoxic and gastrointestinal toxic effects seen with cisplatin, has antitumor mechanisms and efficacy similar to cisplatin. It has demonstrated effectiveness and tolerability in various malignant tumors, and has, in vitro, shown potential as a radiosensitizing agent with nasopharyngeal carcinoma and cervical squamous cell carcinoma cells.
In the initial 2-year results of the phase 3 randomized trial in this population of patients with stage II to IVB nasopharyngeal carcinoma, nedaplatin-based concurrent chemoradiotherapy was noninferior to cisplatin-based concurrent chemoradiotherapy with differences of 1.9% and 1.0% (P = .005 and P = .002), in the intention-to-treat and per-protocol analyses of progression-free survival, respectively. Patients (n = 402) were randomly assigned (1:1) to receive nedaplatin (100 mg/m2)– or cisplatin (100 mg/m2)–based chemotherapy every 3 weeks for three cycles concurrently with intensity-modulated radiotherapy. Information on long-term follow-up and late toxic effects was limited.
In the current analysis of 402 patients (about 25% female, median age 44.5 years), the intention-to-treat 5-year progression-free survival rate was 81.4% (95% CI, 75.9%-86.9%) for the cisplatin group and 79.8% (95% CI, 74.1%-85.5%) for the nedaplatin group, with a difference of 1.6% (95% CI, −6.3% to 9.5%; P = .002 for noninferiority). No significant survival differences were observed between the cisplatin and nedaplatin groups for 5-year overall survival (89.4% vs. 88.8%; P = .63), distant metastasis–free survival (85.9% vs. 90.4%, P = .17), and locoregional relapse–free survival (92.6% vs. 89.6%; P = .17) rates.
The incidence of grade 3 and 4 auditory toxic effects was higher in the cisplatin group than in the nedaplatin group (35 [17.7%] vs. 21 [10.5%], P = .04). Also, the cumulative incidence of grade 3-4 auditory toxic effects was higher in the cisplatin group versus patients in the nedaplatin group (19.9% vs. 12.0%; P = .42). The odds ratio, in a post hoc regression analysis, for auditory toxic effects was 0.51 (0.51; 95% CI, 0.28-0.93; P = .03) for patients in the nedaplatin group.
The findings, the authors concluded, confirm that nedaplatin-based concurrent chemoradiotherapy could be an alternative to cisplatin-based concurrent chemoradiotherapy as doublet therapy for II to IVB nasopharyngeal carcinoma. The potential of nedaplatin in combination drug chemotherapy for nasopharyngeal carcinoma in the induction or adjuvant phase needs to be explored in further investigations, the authors added.
The study was funded by multiple grants; the study investigator reported no conflicts of interest.
Patients with stage II to IVB nasopharyngeal carcinoma who were treated with nedaplatin-based concurrent chemoradiotherapy, achieved 5-year survival rates comparable to those of patients treated with cisplatin chemoradiotherapy, but with fewer toxic effects, shows a study in JAMA Network Open.
The findings confirm that , wrote authors who were led by Lin-Quan Tang, MD, PhD, Sun Yat-sen University Cancer Center, Guangzhou, China.
While the National Comprehensive Cancer Network recommends radiotherapy administered concurrently with 100 mg/m2 of cisplatin every 3 weeks for patients with stage II to IVB nasopharyngeal carcinoma, the addition of cisplatin-based chemotherapy to radiotherapy increases the frequency of treatment-related toxic effects. They include severe gastrointestinal responses, hearing deficits, renal toxic effects, and neurotoxic effects, decreasing treatment adherence and patient quality of life. An antitumor drug with similar therapeutic efficacy to cisplatin but with reduced adverse effects is needed urgently, authors wrote.
The cisplatin analogue nedaplatin, designed to decrease the nephrotoxic and gastrointestinal toxic effects seen with cisplatin, has antitumor mechanisms and efficacy similar to cisplatin. It has demonstrated effectiveness and tolerability in various malignant tumors, and has, in vitro, shown potential as a radiosensitizing agent with nasopharyngeal carcinoma and cervical squamous cell carcinoma cells.
In the initial 2-year results of the phase 3 randomized trial in this population of patients with stage II to IVB nasopharyngeal carcinoma, nedaplatin-based concurrent chemoradiotherapy was noninferior to cisplatin-based concurrent chemoradiotherapy with differences of 1.9% and 1.0% (P = .005 and P = .002), in the intention-to-treat and per-protocol analyses of progression-free survival, respectively. Patients (n = 402) were randomly assigned (1:1) to receive nedaplatin (100 mg/m2)– or cisplatin (100 mg/m2)–based chemotherapy every 3 weeks for three cycles concurrently with intensity-modulated radiotherapy. Information on long-term follow-up and late toxic effects was limited.
In the current analysis of 402 patients (about 25% female, median age 44.5 years), the intention-to-treat 5-year progression-free survival rate was 81.4% (95% CI, 75.9%-86.9%) for the cisplatin group and 79.8% (95% CI, 74.1%-85.5%) for the nedaplatin group, with a difference of 1.6% (95% CI, −6.3% to 9.5%; P = .002 for noninferiority). No significant survival differences were observed between the cisplatin and nedaplatin groups for 5-year overall survival (89.4% vs. 88.8%; P = .63), distant metastasis–free survival (85.9% vs. 90.4%, P = .17), and locoregional relapse–free survival (92.6% vs. 89.6%; P = .17) rates.
The incidence of grade 3 and 4 auditory toxic effects was higher in the cisplatin group than in the nedaplatin group (35 [17.7%] vs. 21 [10.5%], P = .04). Also, the cumulative incidence of grade 3-4 auditory toxic effects was higher in the cisplatin group versus patients in the nedaplatin group (19.9% vs. 12.0%; P = .42). The odds ratio, in a post hoc regression analysis, for auditory toxic effects was 0.51 (0.51; 95% CI, 0.28-0.93; P = .03) for patients in the nedaplatin group.
The findings, the authors concluded, confirm that nedaplatin-based concurrent chemoradiotherapy could be an alternative to cisplatin-based concurrent chemoradiotherapy as doublet therapy for II to IVB nasopharyngeal carcinoma. The potential of nedaplatin in combination drug chemotherapy for nasopharyngeal carcinoma in the induction or adjuvant phase needs to be explored in further investigations, the authors added.
The study was funded by multiple grants; the study investigator reported no conflicts of interest.
FROM JAMA NETWORK OPEN
Growth hormone therapy for certain children may help them reach their potential
“Dr. Lilley, you’ll always be my favorite doctor; you helped me grow.”
These were the parting words from the last patient that I treated during my endocrinology fellowship. I had watched this young man grow from a prepubertal 17-year-old to a young man who had reached his predicted family height as I treated his delayed puberty caused by Kallmann syndrome, a problem that had been missed for years. It was the appropriate bookend for my chosen specialty.
Watching children grow and develop into who they were meant to be is one of my favorite things about endocrinology, as well as forming meaningful relationships with families. Treating detectable deficiencies in logical and measurable ways is also extremely satisfying.
Too little testosterone? That’s a problem I can solve. Too much thyroid hormone? There’s a blocker for that! Endocrinology can be a straightforward field, and when all goes well, everyone leaves happy.
Except when they don’t.
Gatekeepers for treatment for children’s growth
“Nice to meet you. We’re here to get growth hormone.”
“We’re here because his pediatrician made us come. We’ve already decided we’re not going to put hormones into his body.”
These are common statements I hear when I first meet new patients whose parents are concerned about their children’s growth. Pediatric endocrinologists, after all, are the usual gatekeepers for this treatment.
Growth hormone (GH) often makes the news for controversial reasons – most commonly for its abuse by elite athletes hoping to exploit its anabolic effects – causing parents to have varied opinions about its possible use in their children.
Some refuse endocrinology referrals at all owing to concerns that we will push daily injections on their children. Others demand referrals for their children of average height, hoping for every perceived advantage.
GH deficiency (GHD) – a condition where the pituitary gland fails to produce enough GH – can occur because of congenital pituitary malformations; anatomic, surgical, or traumatic interruptions to the gland; or enzyme deficiencies leading to faulty production.
GHD is just one reason for poor growth, however.
Growth is one of the most important indicators of health in children. A waning growth rate may be an early symptom of serious problems. In my clinic, I’ve diagnosed severe hypothyroidism in a marathon runner, a brain tumor, celiac disease in a teenager with no gastrointestinal complaints, autoimmune hepatitis, and several other diseases needing treatment in children who show no symptoms other than poor growth.
Barriers to normal growth
Sometimes, the die is cast for children to have barriers to normal growth. Several genetic conditions can lead to poor GH production or response, and GH treatment is often necessary to approximate normal height.
These may include:
- Turner syndrome (in females who are missing an X chromosome in whole or part) should be considered in every girl with abnormally short stature; mosaic forms of the condition may be subtle and lack classic features.
- Noonan syndrome is important to detect owing to the possibility of cardiac or renal malformations that may also occur in this condition, caused by a mutation in one of the genes in the RAS-MAPK pathway.
- Russell-Silver syndrome can cause intrauterine GH restriction and has been traced to uniparental disomy of chromosome 7 or duplications, mutations, or methylation defects in chromosome 11.
- Individuals with Prader-Willi syndrome, which is characterized by low muscle tone, hyperphagia, and hypogonadism, have demonstrated dramatic benefits from GH therapy, primarily in maintaining a normal body mass index.
Children who are small for their gestational age may be GH resistant, and those who do not catch up to their growth curve by the age of 2 years may require GH treatment to reach their height potential.
GH therapy isn’t entirely benign. Rare adverse effects of overtreatment can include slipped capital femoral epiphysis (a fracture to the growth plate) and pseudotumor cerebri (idiopathic intracranial hypertension).
Overtreatment can cause acromegaly, which results in coarsened features and large hands and feet.
When is GH therapy warranted?
“Growth hormone therapy has been denied by her insurer. They want you to fill out an appeal.”
Insurance approval in the United States can be a herculean effort because GH is expensive: Out-of-pocket costs are prohibitive for most people without insurance assistance, ranging from $7,000 to $30,000 annually.
Pediatric endocrinologists aren’t in the business of cosmetic endocrinology. Treatment of idiopathic short stature has been controversial since this became an indication for GH treatment.
GH isn’t always necessary. Diagnosing the underlying cause for poor growth is the most important step.
Often, we find constitutional delay of growth and puberty, or “late bloomers.” This condition is characterized by a delayed bone age (growth plates more open than expected for age) and delayed pubertal onset. These children will often reach a normal height despite starting as some of the smallest of their peers.
However, GH plays other roles in the body than simply propelling height. Children with congenital GHD will require GH treatment to prevent hypoglycemia, especially in infancy.
GH is needed even in adults with fused growth plates for normal lipid metabolism, bone accrual, and maintaining normal muscle mass.
I have noticed marked improvements in muscle tone in many children with developmental delays who are treated with GH, and research supports cognitive benefits for certain populations.
The most common regimens for GH focus on treatment via subcutaneous injection nightly, when GH is naturally produced; sometimes, injections are given six nights out of seven to provide a break or for splitting time between households.
Newer once-weekly formulations have recently received approval, as reported by this news organization, and are coming into use.
Pediatric endocrinologists measure height and follow growth factors closely with visits every 3-6 months. GH levels are not useful outside of provocative diagnostic (stimulation) testing.
Insulinlike growth factor 1 or insulinlike growth factor binding protein levels are analyzed per Tanner stage of puberty to assess appropriate response and to make dose adjustments.
Annual standardized films of the left hand help predict progress and anticipated adult height. Treatment usually persists through puberty until growth plates are closed; if true GHD is noticed, much smaller doses are continued through adulthood.
Regardless, conversations about GH happen with your friendly local pediatric endocrinologist.
We are thrilled to help shepherd patients through their growing age to meet their potential. For more information about GH treatment for children, the MAGIC Foundation is the perfect place to start.
Dr. Lilley is director of the pediatric diabetes and lipid program, Mississippi Center for Advanced Medicine, Madison. She disclosed no relevant conflicts of interest. A version of this article first appeared on Medscape.com.
“Dr. Lilley, you’ll always be my favorite doctor; you helped me grow.”
These were the parting words from the last patient that I treated during my endocrinology fellowship. I had watched this young man grow from a prepubertal 17-year-old to a young man who had reached his predicted family height as I treated his delayed puberty caused by Kallmann syndrome, a problem that had been missed for years. It was the appropriate bookend for my chosen specialty.
Watching children grow and develop into who they were meant to be is one of my favorite things about endocrinology, as well as forming meaningful relationships with families. Treating detectable deficiencies in logical and measurable ways is also extremely satisfying.
Too little testosterone? That’s a problem I can solve. Too much thyroid hormone? There’s a blocker for that! Endocrinology can be a straightforward field, and when all goes well, everyone leaves happy.
Except when they don’t.
Gatekeepers for treatment for children’s growth
“Nice to meet you. We’re here to get growth hormone.”
“We’re here because his pediatrician made us come. We’ve already decided we’re not going to put hormones into his body.”
These are common statements I hear when I first meet new patients whose parents are concerned about their children’s growth. Pediatric endocrinologists, after all, are the usual gatekeepers for this treatment.
Growth hormone (GH) often makes the news for controversial reasons – most commonly for its abuse by elite athletes hoping to exploit its anabolic effects – causing parents to have varied opinions about its possible use in their children.
Some refuse endocrinology referrals at all owing to concerns that we will push daily injections on their children. Others demand referrals for their children of average height, hoping for every perceived advantage.
GH deficiency (GHD) – a condition where the pituitary gland fails to produce enough GH – can occur because of congenital pituitary malformations; anatomic, surgical, or traumatic interruptions to the gland; or enzyme deficiencies leading to faulty production.
GHD is just one reason for poor growth, however.
Growth is one of the most important indicators of health in children. A waning growth rate may be an early symptom of serious problems. In my clinic, I’ve diagnosed severe hypothyroidism in a marathon runner, a brain tumor, celiac disease in a teenager with no gastrointestinal complaints, autoimmune hepatitis, and several other diseases needing treatment in children who show no symptoms other than poor growth.
Barriers to normal growth
Sometimes, the die is cast for children to have barriers to normal growth. Several genetic conditions can lead to poor GH production or response, and GH treatment is often necessary to approximate normal height.
These may include:
- Turner syndrome (in females who are missing an X chromosome in whole or part) should be considered in every girl with abnormally short stature; mosaic forms of the condition may be subtle and lack classic features.
- Noonan syndrome is important to detect owing to the possibility of cardiac or renal malformations that may also occur in this condition, caused by a mutation in one of the genes in the RAS-MAPK pathway.
- Russell-Silver syndrome can cause intrauterine GH restriction and has been traced to uniparental disomy of chromosome 7 or duplications, mutations, or methylation defects in chromosome 11.
- Individuals with Prader-Willi syndrome, which is characterized by low muscle tone, hyperphagia, and hypogonadism, have demonstrated dramatic benefits from GH therapy, primarily in maintaining a normal body mass index.
Children who are small for their gestational age may be GH resistant, and those who do not catch up to their growth curve by the age of 2 years may require GH treatment to reach their height potential.
GH therapy isn’t entirely benign. Rare adverse effects of overtreatment can include slipped capital femoral epiphysis (a fracture to the growth plate) and pseudotumor cerebri (idiopathic intracranial hypertension).
Overtreatment can cause acromegaly, which results in coarsened features and large hands and feet.
When is GH therapy warranted?
“Growth hormone therapy has been denied by her insurer. They want you to fill out an appeal.”
Insurance approval in the United States can be a herculean effort because GH is expensive: Out-of-pocket costs are prohibitive for most people without insurance assistance, ranging from $7,000 to $30,000 annually.
Pediatric endocrinologists aren’t in the business of cosmetic endocrinology. Treatment of idiopathic short stature has been controversial since this became an indication for GH treatment.
GH isn’t always necessary. Diagnosing the underlying cause for poor growth is the most important step.
Often, we find constitutional delay of growth and puberty, or “late bloomers.” This condition is characterized by a delayed bone age (growth plates more open than expected for age) and delayed pubertal onset. These children will often reach a normal height despite starting as some of the smallest of their peers.
However, GH plays other roles in the body than simply propelling height. Children with congenital GHD will require GH treatment to prevent hypoglycemia, especially in infancy.
GH is needed even in adults with fused growth plates for normal lipid metabolism, bone accrual, and maintaining normal muscle mass.
I have noticed marked improvements in muscle tone in many children with developmental delays who are treated with GH, and research supports cognitive benefits for certain populations.
The most common regimens for GH focus on treatment via subcutaneous injection nightly, when GH is naturally produced; sometimes, injections are given six nights out of seven to provide a break or for splitting time between households.
Newer once-weekly formulations have recently received approval, as reported by this news organization, and are coming into use.
Pediatric endocrinologists measure height and follow growth factors closely with visits every 3-6 months. GH levels are not useful outside of provocative diagnostic (stimulation) testing.
Insulinlike growth factor 1 or insulinlike growth factor binding protein levels are analyzed per Tanner stage of puberty to assess appropriate response and to make dose adjustments.
Annual standardized films of the left hand help predict progress and anticipated adult height. Treatment usually persists through puberty until growth plates are closed; if true GHD is noticed, much smaller doses are continued through adulthood.
Regardless, conversations about GH happen with your friendly local pediatric endocrinologist.
We are thrilled to help shepherd patients through their growing age to meet their potential. For more information about GH treatment for children, the MAGIC Foundation is the perfect place to start.
Dr. Lilley is director of the pediatric diabetes and lipid program, Mississippi Center for Advanced Medicine, Madison. She disclosed no relevant conflicts of interest. A version of this article first appeared on Medscape.com.
“Dr. Lilley, you’ll always be my favorite doctor; you helped me grow.”
These were the parting words from the last patient that I treated during my endocrinology fellowship. I had watched this young man grow from a prepubertal 17-year-old to a young man who had reached his predicted family height as I treated his delayed puberty caused by Kallmann syndrome, a problem that had been missed for years. It was the appropriate bookend for my chosen specialty.
Watching children grow and develop into who they were meant to be is one of my favorite things about endocrinology, as well as forming meaningful relationships with families. Treating detectable deficiencies in logical and measurable ways is also extremely satisfying.
Too little testosterone? That’s a problem I can solve. Too much thyroid hormone? There’s a blocker for that! Endocrinology can be a straightforward field, and when all goes well, everyone leaves happy.
Except when they don’t.
Gatekeepers for treatment for children’s growth
“Nice to meet you. We’re here to get growth hormone.”
“We’re here because his pediatrician made us come. We’ve already decided we’re not going to put hormones into his body.”
These are common statements I hear when I first meet new patients whose parents are concerned about their children’s growth. Pediatric endocrinologists, after all, are the usual gatekeepers for this treatment.
Growth hormone (GH) often makes the news for controversial reasons – most commonly for its abuse by elite athletes hoping to exploit its anabolic effects – causing parents to have varied opinions about its possible use in their children.
Some refuse endocrinology referrals at all owing to concerns that we will push daily injections on their children. Others demand referrals for their children of average height, hoping for every perceived advantage.
GH deficiency (GHD) – a condition where the pituitary gland fails to produce enough GH – can occur because of congenital pituitary malformations; anatomic, surgical, or traumatic interruptions to the gland; or enzyme deficiencies leading to faulty production.
GHD is just one reason for poor growth, however.
Growth is one of the most important indicators of health in children. A waning growth rate may be an early symptom of serious problems. In my clinic, I’ve diagnosed severe hypothyroidism in a marathon runner, a brain tumor, celiac disease in a teenager with no gastrointestinal complaints, autoimmune hepatitis, and several other diseases needing treatment in children who show no symptoms other than poor growth.
Barriers to normal growth
Sometimes, the die is cast for children to have barriers to normal growth. Several genetic conditions can lead to poor GH production or response, and GH treatment is often necessary to approximate normal height.
These may include:
- Turner syndrome (in females who are missing an X chromosome in whole or part) should be considered in every girl with abnormally short stature; mosaic forms of the condition may be subtle and lack classic features.
- Noonan syndrome is important to detect owing to the possibility of cardiac or renal malformations that may also occur in this condition, caused by a mutation in one of the genes in the RAS-MAPK pathway.
- Russell-Silver syndrome can cause intrauterine GH restriction and has been traced to uniparental disomy of chromosome 7 or duplications, mutations, or methylation defects in chromosome 11.
- Individuals with Prader-Willi syndrome, which is characterized by low muscle tone, hyperphagia, and hypogonadism, have demonstrated dramatic benefits from GH therapy, primarily in maintaining a normal body mass index.
Children who are small for their gestational age may be GH resistant, and those who do not catch up to their growth curve by the age of 2 years may require GH treatment to reach their height potential.
GH therapy isn’t entirely benign. Rare adverse effects of overtreatment can include slipped capital femoral epiphysis (a fracture to the growth plate) and pseudotumor cerebri (idiopathic intracranial hypertension).
Overtreatment can cause acromegaly, which results in coarsened features and large hands and feet.
When is GH therapy warranted?
“Growth hormone therapy has been denied by her insurer. They want you to fill out an appeal.”
Insurance approval in the United States can be a herculean effort because GH is expensive: Out-of-pocket costs are prohibitive for most people without insurance assistance, ranging from $7,000 to $30,000 annually.
Pediatric endocrinologists aren’t in the business of cosmetic endocrinology. Treatment of idiopathic short stature has been controversial since this became an indication for GH treatment.
GH isn’t always necessary. Diagnosing the underlying cause for poor growth is the most important step.
Often, we find constitutional delay of growth and puberty, or “late bloomers.” This condition is characterized by a delayed bone age (growth plates more open than expected for age) and delayed pubertal onset. These children will often reach a normal height despite starting as some of the smallest of their peers.
However, GH plays other roles in the body than simply propelling height. Children with congenital GHD will require GH treatment to prevent hypoglycemia, especially in infancy.
GH is needed even in adults with fused growth plates for normal lipid metabolism, bone accrual, and maintaining normal muscle mass.
I have noticed marked improvements in muscle tone in many children with developmental delays who are treated with GH, and research supports cognitive benefits for certain populations.
The most common regimens for GH focus on treatment via subcutaneous injection nightly, when GH is naturally produced; sometimes, injections are given six nights out of seven to provide a break or for splitting time between households.
Newer once-weekly formulations have recently received approval, as reported by this news organization, and are coming into use.
Pediatric endocrinologists measure height and follow growth factors closely with visits every 3-6 months. GH levels are not useful outside of provocative diagnostic (stimulation) testing.
Insulinlike growth factor 1 or insulinlike growth factor binding protein levels are analyzed per Tanner stage of puberty to assess appropriate response and to make dose adjustments.
Annual standardized films of the left hand help predict progress and anticipated adult height. Treatment usually persists through puberty until growth plates are closed; if true GHD is noticed, much smaller doses are continued through adulthood.
Regardless, conversations about GH happen with your friendly local pediatric endocrinologist.
We are thrilled to help shepherd patients through their growing age to meet their potential. For more information about GH treatment for children, the MAGIC Foundation is the perfect place to start.
Dr. Lilley is director of the pediatric diabetes and lipid program, Mississippi Center for Advanced Medicine, Madison. She disclosed no relevant conflicts of interest. A version of this article first appeared on Medscape.com.
Biomarkers predict cardiovascular risk in chronic kidney disease patients
Chronic kidney disease (CKD) patients may be at increased risk for atherosclerotic cardiovascular disease, but no ASCVD risk prediction models are currently in place to inform clinical care and prevention strategies, Joshua Bundy, PhD, of Tulane University, New Orleans, and colleagues wrote in their paper, published in the Journal of the American Society of Nephrology.
To improve the accuracy of ASCVD risk prediction, the researchers developed several models using data from the Chronic Renal Insufficiency Cohort (CRIC) study. This longitudinal cohort study included more than 2,500 adult CKD patients. The participants’ ages ranged from 21-74 years, with the mean age having been 55.8 years, and 52.0% of the cohort was male.
Kidney function was defined using the glomerular filtration rate; the mean estimated glomerular filtration rate (eGFR) of the study participants was 56.0 mL/min per 1.73m2. The primary endpoint for the prediction models was incident ASCVD, defined as a composite of incident fatal or nonfatal stroke or MI.
A total of 252 incident ASCVD events occurred during the first 10 years of follow-up from baseline (1.9 events per 1,000 person-years). Patients with ASCVD events were more likely to be older, Black, and current smokers. They also were more likely than those who did not experience ASCVD events to have less than a college level education, to have a history of diabetes, and to use blood pressure–lowering medications.
“In our study, we created two new prediction tools for patients with CKD: the first is a simple model that includes factors routinely measured by health care providers and the second is an expanded model with additional variables particularly important to patients with CKD, including measures of long-term blood sugar, inflammation, and kidney and heart injury,” he explained. “We found that the new models are better able to classify patients who will or will not have a stroke or heart attack within 10 years, compared with the standard models. The new tools may better assist health care providers and patients with CKD in shared decision-making for prevention of heart disease.”
Results
The area under the curve for a prediction model using coefficients estimated within the CRIC sample was 0.736. This represented an accuracy higher than the American College of Cardiology/American Heart Association Pooled Cohort Equations (PCE), which have shown an AUC of 0.730 (P = .03). The PCE were developed by the ACC and the AHA in 2013 to estimate ASCVD risk in the primary prevention population.
The second CRIC model that was developed using clinically available variables had an AUC of 0.760. However, the third CRIC biomarker-enriched model was even more effective, with an AUC of 0.771 – significantly higher than the clinical model (P = .001).
Model 1 included the ACC/AHA PCE variables with coefficients recalculated in the CRIC study sample. Model 2 (the CRIC Clinical Model) included age, HDL cholesterol, systolic BP, current smoking, urinary albumin-to-creatinine ratio (ACR), hemoglobin A1c, and hemoglobin. Model 3 (the CRIC Enriched Model) included age, total cholesterol, HDL cholesterol, current smoking, urinary ACR, A1c, apolipoprotein B, high-sensitivity C-reactive protein (hsCRP), troponin T, and N-terminal of the prohormone brain natriuretic peptide (NT-proBNP).
Both the clinical and biomarker models improved reclassification of non-ASCVD events, compared with the PCEs (6.6% and 10.0%, respectively).
Several factors not included in prior prediction models were important for atherosclerotic CVD prediction among patients with CKD, the researchers noted. These included variables routinely measured in clinical practice as well as biomarkers: measures of long-term glycemia (A1c), inflammation (hsCRP), kidney injury (urinary ACR), and cardiac injury (troponin T and NT-proBNP).
Patients who had an ASCVD event had higher levels of A1c, systolic and diastolic BP, urinary ACR, troponin T, and NT-proBNP; these patients also had lower levels of HDL cholesterol, eGFR, and hemoglobin, compared with those who did not have an event.
The study findings were limited by several factors including the selection of study participants based on a single assessment of kidney function, who had an above average baseline ASCVD risk, the researchers noted. Other limitations included the inability to include imaging variables in the models, and the overestimated risk in the highest predicted probability groups in the CRIC study.
However, the models significantly improve prediction beyond the ACC/AHA PCE in patients with CKD, they concluded.
Models may inform shared decision-making
The development of new prediction models is important, because cardiovascular disease is the leading cause of death among U.S. adults and preventing CVD is a major public health challenge, lead author Dr. Bundy said in an interview.
“In an effort to prevent CVD, risk prediction equations can help identify patients who are at high risk for developing CVD and who may benefit from initiation or intensification of preventive and/or therapeutic measures. Simultaneously, chronic kidney disease is prevalent and those with CKD are often considered at high risk for CVD,” he said.
“However, common risk prediction tools were developed for the general population and may not work as well in patients with CKD, who may have different risk factors. Improving risk prediction in patients with CKD may help identify those among this growing population who are truly at high risk, as well as identify those who are at low risk and less likely to benefit from invasive procedures,” Dr. Bundy explained.
Glomerular filtration rate was not a strong predictor of atherosclerotic CVD
“One of the surprising findings was that estimated glomerular filtration rate was not a strong predictor and was not included in our final models,” Dr. Bundy said.
“We know that eGFR is a very important measurement in this population, but our results suggest that, at least in our sample, urinary albumin-to-creatinine ratio and cardiac biomarkers like troponin T and NT-proBNP are stronger predictors of atherosclerotic CVD in a population with reduced kidney function,” he said.
“Patient characteristics like age, blood pressure, and cholesterol are used by health care providers to predict whether a person will have a heart attack or stroke. However, most currently available prediction tools were not made for use in patients with CKD, which is a condition that is becoming more common and is likely to be seen by more health care providers in family practice,” said Dr. Bundy. “These people with CKD may have different risk factors for heart disease.”
Models are useful for clinical practice
“We are seeing rising numbers of patients with CKD in the population because of increasing age, rising rates of diabetes, and hypertension,” Noel Deep, MD, said in an interview. “The current practice of medicine does not have CKD-specific prediction models for ASCVD development, and current risks are calculated based on prediction models developed for the general population.”
“Having a prediction model that incorporates criteria/variables associated with CKD improves our ability to accurately identify and address the risk of ASCVD in this particular patient population,” said Dr. Deep, who is a general internist in a multispecialty group practice with Aspirus Antigo (Wisc.) Clinic and the chief medical officer and a staff physician at Aspirus Langlade Hospital, also in Antigo.
“We always knew that CKD does place the individual at higher risk for developing ASCVD, but I was impressed by the significant improvement in the prediction models using CKD specific tools, such as cardiac biomarkers (NT-proBNP), intensity of diabetes control (A1c), tobacco use, urinary albuminuria, in addition to advancing age,” he said. “Many of the laboratory tests listed in this study are commonly available and can be easily incorporated into our evaluation for and management of ASCVD in our patients with CKD.”
“As a practicing primary care physician, I would say that this study emphasizes the importance of identifying and working toward mitigating the associated health risks that our patients with CKD might have coexisting and that significantly contribute to progression of CKD,” said Dr. Deep, who is also assistant clinical professor at the Medical College of Wisconsin, Wausau. “By addressing these risk factors, we can positively impact the health of our patients with CKD and decrease the morbidity and mortality, and health care costs. These predictive models can hopefully help us more accurately identify the risk of ASCVD thereby decreasing unnecessary diagnostic procedures and interventions which carry their own risks and morbidity.”
Looking ahead, “these predictive models should be assessed and validated in large studies in diverse populations and those with different risk factors for ASCVD because CKD can be caused by several different medical conditions each with potential to contribute to ASCVD,” Dr. Deep added.
Limitations and next steps
“Although we externally validated our models in two population-based cohort studies, the individuals in these datasets were selected based on only one assessment of kidney function,” Dr. Bundy noted. “Furthermore, the best practices for implementing risk prediction models in the clinic remain to be determined, especially as new models are developed.
“While our models show promising performance for predicting 10-year risk of atherosclerotic CVD, more clinical trials are needed to test implementation of these models for improving patient care and disease prevention.”
The study was supported by the National Institute of Diabetes and Digestive and Kidney Diseases. Additional support came from the University of Pennsylvania Clinical and Translational Science Award, Johns Hopkins University, the University of Maryland, Clinical and Translational Science Collaborative of Cleveland, the National Center for Advancing Translational Sciences component of the National Institutes of Health and NIH roadmap for Medical Research, Michigan Institute for Clinical and Health Research, University of Illinois at Chicago, Tulane COBRE for Clinical and Translational Research in Cardiometabolic Diseases, Kaiser Permanente, and the University of New Mexico. Lead author Dr. Bundy was supported by the National Institutes of Health/Eunice Kennedy Shriver National Institute of Child Health and Human Development. The researchers had no financial conflicts to disclose. Dr. Deep had no financial conflicts to disclose.
This article was updated on 2/17/2021.
Chronic kidney disease (CKD) patients may be at increased risk for atherosclerotic cardiovascular disease, but no ASCVD risk prediction models are currently in place to inform clinical care and prevention strategies, Joshua Bundy, PhD, of Tulane University, New Orleans, and colleagues wrote in their paper, published in the Journal of the American Society of Nephrology.
To improve the accuracy of ASCVD risk prediction, the researchers developed several models using data from the Chronic Renal Insufficiency Cohort (CRIC) study. This longitudinal cohort study included more than 2,500 adult CKD patients. The participants’ ages ranged from 21-74 years, with the mean age having been 55.8 years, and 52.0% of the cohort was male.
Kidney function was defined using the glomerular filtration rate; the mean estimated glomerular filtration rate (eGFR) of the study participants was 56.0 mL/min per 1.73m2. The primary endpoint for the prediction models was incident ASCVD, defined as a composite of incident fatal or nonfatal stroke or MI.
A total of 252 incident ASCVD events occurred during the first 10 years of follow-up from baseline (1.9 events per 1,000 person-years). Patients with ASCVD events were more likely to be older, Black, and current smokers. They also were more likely than those who did not experience ASCVD events to have less than a college level education, to have a history of diabetes, and to use blood pressure–lowering medications.
“In our study, we created two new prediction tools for patients with CKD: the first is a simple model that includes factors routinely measured by health care providers and the second is an expanded model with additional variables particularly important to patients with CKD, including measures of long-term blood sugar, inflammation, and kidney and heart injury,” he explained. “We found that the new models are better able to classify patients who will or will not have a stroke or heart attack within 10 years, compared with the standard models. The new tools may better assist health care providers and patients with CKD in shared decision-making for prevention of heart disease.”
Results
The area under the curve for a prediction model using coefficients estimated within the CRIC sample was 0.736. This represented an accuracy higher than the American College of Cardiology/American Heart Association Pooled Cohort Equations (PCE), which have shown an AUC of 0.730 (P = .03). The PCE were developed by the ACC and the AHA in 2013 to estimate ASCVD risk in the primary prevention population.
The second CRIC model that was developed using clinically available variables had an AUC of 0.760. However, the third CRIC biomarker-enriched model was even more effective, with an AUC of 0.771 – significantly higher than the clinical model (P = .001).
Model 1 included the ACC/AHA PCE variables with coefficients recalculated in the CRIC study sample. Model 2 (the CRIC Clinical Model) included age, HDL cholesterol, systolic BP, current smoking, urinary albumin-to-creatinine ratio (ACR), hemoglobin A1c, and hemoglobin. Model 3 (the CRIC Enriched Model) included age, total cholesterol, HDL cholesterol, current smoking, urinary ACR, A1c, apolipoprotein B, high-sensitivity C-reactive protein (hsCRP), troponin T, and N-terminal of the prohormone brain natriuretic peptide (NT-proBNP).
Both the clinical and biomarker models improved reclassification of non-ASCVD events, compared with the PCEs (6.6% and 10.0%, respectively).
Several factors not included in prior prediction models were important for atherosclerotic CVD prediction among patients with CKD, the researchers noted. These included variables routinely measured in clinical practice as well as biomarkers: measures of long-term glycemia (A1c), inflammation (hsCRP), kidney injury (urinary ACR), and cardiac injury (troponin T and NT-proBNP).
Patients who had an ASCVD event had higher levels of A1c, systolic and diastolic BP, urinary ACR, troponin T, and NT-proBNP; these patients also had lower levels of HDL cholesterol, eGFR, and hemoglobin, compared with those who did not have an event.
The study findings were limited by several factors including the selection of study participants based on a single assessment of kidney function, who had an above average baseline ASCVD risk, the researchers noted. Other limitations included the inability to include imaging variables in the models, and the overestimated risk in the highest predicted probability groups in the CRIC study.
However, the models significantly improve prediction beyond the ACC/AHA PCE in patients with CKD, they concluded.
Models may inform shared decision-making
The development of new prediction models is important, because cardiovascular disease is the leading cause of death among U.S. adults and preventing CVD is a major public health challenge, lead author Dr. Bundy said in an interview.
“In an effort to prevent CVD, risk prediction equations can help identify patients who are at high risk for developing CVD and who may benefit from initiation or intensification of preventive and/or therapeutic measures. Simultaneously, chronic kidney disease is prevalent and those with CKD are often considered at high risk for CVD,” he said.
“However, common risk prediction tools were developed for the general population and may not work as well in patients with CKD, who may have different risk factors. Improving risk prediction in patients with CKD may help identify those among this growing population who are truly at high risk, as well as identify those who are at low risk and less likely to benefit from invasive procedures,” Dr. Bundy explained.
Glomerular filtration rate was not a strong predictor of atherosclerotic CVD
“One of the surprising findings was that estimated glomerular filtration rate was not a strong predictor and was not included in our final models,” Dr. Bundy said.
“We know that eGFR is a very important measurement in this population, but our results suggest that, at least in our sample, urinary albumin-to-creatinine ratio and cardiac biomarkers like troponin T and NT-proBNP are stronger predictors of atherosclerotic CVD in a population with reduced kidney function,” he said.
“Patient characteristics like age, blood pressure, and cholesterol are used by health care providers to predict whether a person will have a heart attack or stroke. However, most currently available prediction tools were not made for use in patients with CKD, which is a condition that is becoming more common and is likely to be seen by more health care providers in family practice,” said Dr. Bundy. “These people with CKD may have different risk factors for heart disease.”
Models are useful for clinical practice
“We are seeing rising numbers of patients with CKD in the population because of increasing age, rising rates of diabetes, and hypertension,” Noel Deep, MD, said in an interview. “The current practice of medicine does not have CKD-specific prediction models for ASCVD development, and current risks are calculated based on prediction models developed for the general population.”
“Having a prediction model that incorporates criteria/variables associated with CKD improves our ability to accurately identify and address the risk of ASCVD in this particular patient population,” said Dr. Deep, who is a general internist in a multispecialty group practice with Aspirus Antigo (Wisc.) Clinic and the chief medical officer and a staff physician at Aspirus Langlade Hospital, also in Antigo.
“We always knew that CKD does place the individual at higher risk for developing ASCVD, but I was impressed by the significant improvement in the prediction models using CKD specific tools, such as cardiac biomarkers (NT-proBNP), intensity of diabetes control (A1c), tobacco use, urinary albuminuria, in addition to advancing age,” he said. “Many of the laboratory tests listed in this study are commonly available and can be easily incorporated into our evaluation for and management of ASCVD in our patients with CKD.”
“As a practicing primary care physician, I would say that this study emphasizes the importance of identifying and working toward mitigating the associated health risks that our patients with CKD might have coexisting and that significantly contribute to progression of CKD,” said Dr. Deep, who is also assistant clinical professor at the Medical College of Wisconsin, Wausau. “By addressing these risk factors, we can positively impact the health of our patients with CKD and decrease the morbidity and mortality, and health care costs. These predictive models can hopefully help us more accurately identify the risk of ASCVD thereby decreasing unnecessary diagnostic procedures and interventions which carry their own risks and morbidity.”
Looking ahead, “these predictive models should be assessed and validated in large studies in diverse populations and those with different risk factors for ASCVD because CKD can be caused by several different medical conditions each with potential to contribute to ASCVD,” Dr. Deep added.
Limitations and next steps
“Although we externally validated our models in two population-based cohort studies, the individuals in these datasets were selected based on only one assessment of kidney function,” Dr. Bundy noted. “Furthermore, the best practices for implementing risk prediction models in the clinic remain to be determined, especially as new models are developed.
“While our models show promising performance for predicting 10-year risk of atherosclerotic CVD, more clinical trials are needed to test implementation of these models for improving patient care and disease prevention.”
The study was supported by the National Institute of Diabetes and Digestive and Kidney Diseases. Additional support came from the University of Pennsylvania Clinical and Translational Science Award, Johns Hopkins University, the University of Maryland, Clinical and Translational Science Collaborative of Cleveland, the National Center for Advancing Translational Sciences component of the National Institutes of Health and NIH roadmap for Medical Research, Michigan Institute for Clinical and Health Research, University of Illinois at Chicago, Tulane COBRE for Clinical and Translational Research in Cardiometabolic Diseases, Kaiser Permanente, and the University of New Mexico. Lead author Dr. Bundy was supported by the National Institutes of Health/Eunice Kennedy Shriver National Institute of Child Health and Human Development. The researchers had no financial conflicts to disclose. Dr. Deep had no financial conflicts to disclose.
This article was updated on 2/17/2021.
Chronic kidney disease (CKD) patients may be at increased risk for atherosclerotic cardiovascular disease, but no ASCVD risk prediction models are currently in place to inform clinical care and prevention strategies, Joshua Bundy, PhD, of Tulane University, New Orleans, and colleagues wrote in their paper, published in the Journal of the American Society of Nephrology.
To improve the accuracy of ASCVD risk prediction, the researchers developed several models using data from the Chronic Renal Insufficiency Cohort (CRIC) study. This longitudinal cohort study included more than 2,500 adult CKD patients. The participants’ ages ranged from 21-74 years, with the mean age having been 55.8 years, and 52.0% of the cohort was male.
Kidney function was defined using the glomerular filtration rate; the mean estimated glomerular filtration rate (eGFR) of the study participants was 56.0 mL/min per 1.73m2. The primary endpoint for the prediction models was incident ASCVD, defined as a composite of incident fatal or nonfatal stroke or MI.
A total of 252 incident ASCVD events occurred during the first 10 years of follow-up from baseline (1.9 events per 1,000 person-years). Patients with ASCVD events were more likely to be older, Black, and current smokers. They also were more likely than those who did not experience ASCVD events to have less than a college level education, to have a history of diabetes, and to use blood pressure–lowering medications.
“In our study, we created two new prediction tools for patients with CKD: the first is a simple model that includes factors routinely measured by health care providers and the second is an expanded model with additional variables particularly important to patients with CKD, including measures of long-term blood sugar, inflammation, and kidney and heart injury,” he explained. “We found that the new models are better able to classify patients who will or will not have a stroke or heart attack within 10 years, compared with the standard models. The new tools may better assist health care providers and patients with CKD in shared decision-making for prevention of heart disease.”
Results
The area under the curve for a prediction model using coefficients estimated within the CRIC sample was 0.736. This represented an accuracy higher than the American College of Cardiology/American Heart Association Pooled Cohort Equations (PCE), which have shown an AUC of 0.730 (P = .03). The PCE were developed by the ACC and the AHA in 2013 to estimate ASCVD risk in the primary prevention population.
The second CRIC model that was developed using clinically available variables had an AUC of 0.760. However, the third CRIC biomarker-enriched model was even more effective, with an AUC of 0.771 – significantly higher than the clinical model (P = .001).
Model 1 included the ACC/AHA PCE variables with coefficients recalculated in the CRIC study sample. Model 2 (the CRIC Clinical Model) included age, HDL cholesterol, systolic BP, current smoking, urinary albumin-to-creatinine ratio (ACR), hemoglobin A1c, and hemoglobin. Model 3 (the CRIC Enriched Model) included age, total cholesterol, HDL cholesterol, current smoking, urinary ACR, A1c, apolipoprotein B, high-sensitivity C-reactive protein (hsCRP), troponin T, and N-terminal of the prohormone brain natriuretic peptide (NT-proBNP).
Both the clinical and biomarker models improved reclassification of non-ASCVD events, compared with the PCEs (6.6% and 10.0%, respectively).
Several factors not included in prior prediction models were important for atherosclerotic CVD prediction among patients with CKD, the researchers noted. These included variables routinely measured in clinical practice as well as biomarkers: measures of long-term glycemia (A1c), inflammation (hsCRP), kidney injury (urinary ACR), and cardiac injury (troponin T and NT-proBNP).
Patients who had an ASCVD event had higher levels of A1c, systolic and diastolic BP, urinary ACR, troponin T, and NT-proBNP; these patients also had lower levels of HDL cholesterol, eGFR, and hemoglobin, compared with those who did not have an event.
The study findings were limited by several factors including the selection of study participants based on a single assessment of kidney function, who had an above average baseline ASCVD risk, the researchers noted. Other limitations included the inability to include imaging variables in the models, and the overestimated risk in the highest predicted probability groups in the CRIC study.
However, the models significantly improve prediction beyond the ACC/AHA PCE in patients with CKD, they concluded.
Models may inform shared decision-making
The development of new prediction models is important, because cardiovascular disease is the leading cause of death among U.S. adults and preventing CVD is a major public health challenge, lead author Dr. Bundy said in an interview.
“In an effort to prevent CVD, risk prediction equations can help identify patients who are at high risk for developing CVD and who may benefit from initiation or intensification of preventive and/or therapeutic measures. Simultaneously, chronic kidney disease is prevalent and those with CKD are often considered at high risk for CVD,” he said.
“However, common risk prediction tools were developed for the general population and may not work as well in patients with CKD, who may have different risk factors. Improving risk prediction in patients with CKD may help identify those among this growing population who are truly at high risk, as well as identify those who are at low risk and less likely to benefit from invasive procedures,” Dr. Bundy explained.
Glomerular filtration rate was not a strong predictor of atherosclerotic CVD
“One of the surprising findings was that estimated glomerular filtration rate was not a strong predictor and was not included in our final models,” Dr. Bundy said.
“We know that eGFR is a very important measurement in this population, but our results suggest that, at least in our sample, urinary albumin-to-creatinine ratio and cardiac biomarkers like troponin T and NT-proBNP are stronger predictors of atherosclerotic CVD in a population with reduced kidney function,” he said.
“Patient characteristics like age, blood pressure, and cholesterol are used by health care providers to predict whether a person will have a heart attack or stroke. However, most currently available prediction tools were not made for use in patients with CKD, which is a condition that is becoming more common and is likely to be seen by more health care providers in family practice,” said Dr. Bundy. “These people with CKD may have different risk factors for heart disease.”
Models are useful for clinical practice
“We are seeing rising numbers of patients with CKD in the population because of increasing age, rising rates of diabetes, and hypertension,” Noel Deep, MD, said in an interview. “The current practice of medicine does not have CKD-specific prediction models for ASCVD development, and current risks are calculated based on prediction models developed for the general population.”
“Having a prediction model that incorporates criteria/variables associated with CKD improves our ability to accurately identify and address the risk of ASCVD in this particular patient population,” said Dr. Deep, who is a general internist in a multispecialty group practice with Aspirus Antigo (Wisc.) Clinic and the chief medical officer and a staff physician at Aspirus Langlade Hospital, also in Antigo.
“We always knew that CKD does place the individual at higher risk for developing ASCVD, but I was impressed by the significant improvement in the prediction models using CKD specific tools, such as cardiac biomarkers (NT-proBNP), intensity of diabetes control (A1c), tobacco use, urinary albuminuria, in addition to advancing age,” he said. “Many of the laboratory tests listed in this study are commonly available and can be easily incorporated into our evaluation for and management of ASCVD in our patients with CKD.”
“As a practicing primary care physician, I would say that this study emphasizes the importance of identifying and working toward mitigating the associated health risks that our patients with CKD might have coexisting and that significantly contribute to progression of CKD,” said Dr. Deep, who is also assistant clinical professor at the Medical College of Wisconsin, Wausau. “By addressing these risk factors, we can positively impact the health of our patients with CKD and decrease the morbidity and mortality, and health care costs. These predictive models can hopefully help us more accurately identify the risk of ASCVD thereby decreasing unnecessary diagnostic procedures and interventions which carry their own risks and morbidity.”
Looking ahead, “these predictive models should be assessed and validated in large studies in diverse populations and those with different risk factors for ASCVD because CKD can be caused by several different medical conditions each with potential to contribute to ASCVD,” Dr. Deep added.
Limitations and next steps
“Although we externally validated our models in two population-based cohort studies, the individuals in these datasets were selected based on only one assessment of kidney function,” Dr. Bundy noted. “Furthermore, the best practices for implementing risk prediction models in the clinic remain to be determined, especially as new models are developed.
“While our models show promising performance for predicting 10-year risk of atherosclerotic CVD, more clinical trials are needed to test implementation of these models for improving patient care and disease prevention.”
The study was supported by the National Institute of Diabetes and Digestive and Kidney Diseases. Additional support came from the University of Pennsylvania Clinical and Translational Science Award, Johns Hopkins University, the University of Maryland, Clinical and Translational Science Collaborative of Cleveland, the National Center for Advancing Translational Sciences component of the National Institutes of Health and NIH roadmap for Medical Research, Michigan Institute for Clinical and Health Research, University of Illinois at Chicago, Tulane COBRE for Clinical and Translational Research in Cardiometabolic Diseases, Kaiser Permanente, and the University of New Mexico. Lead author Dr. Bundy was supported by the National Institutes of Health/Eunice Kennedy Shriver National Institute of Child Health and Human Development. The researchers had no financial conflicts to disclose. Dr. Deep had no financial conflicts to disclose.
This article was updated on 2/17/2021.
FROM THE JOURNAL OF THE AMERICAN SOCIETY OF NEPHROLOGY
Seniors face higher risk of other medical conditions after COVID-19
The findings of the observational study, which were published in the BMJ, show the risk of a new condition being triggered by COVID is more than twice as high in seniors, compared with younger patients. Plus, the researchers observed an even higher risk among those who were hospitalized, with nearly half (46%) of patients having developed new conditions after the acute COVID-19 infection period.
Respiratory failure with shortness of breath was the most common postacute sequela, but a wide range of heart, kidney, lung, liver, cognitive, mental health, and other conditions were diagnosed at least 3 weeks after initial infection and persisted beyond 30 days.
This is one of the first studies to specifically describe the incidence and severity of new conditions triggered by COVID-19 infection in a general sample of older adults, said study author Ken Cohen MD, FACP, executive director of translational research at Optum Labs and national senior medical director at Optum Care.
“Much of what has been published on the postacute sequelae of COVID-19 has been predominantly from a younger population, and many of the patients had been hospitalized,” Dr. Cohen noted. “This was the first study to focus on a large population of seniors, most of whom did not require hospitalization.”
Dr. Cohen and colleagues reviewed the health insurance records of more than 133,000 Medicare beneficiaries aged 65 or older who were diagnosed with COVID-19 before April 2020. They also matched individuals by age, race, sex, hospitalization status, and other factors to comparison groups without COVID-19 (one from 2020 and one from 2019), and to a group diagnosed with other lower respiratory tract viral infections before the pandemic.
Risk of developing new conditions was higher in hospitalized
After acute COVID-19 infection, 32% of seniors sought medical care for at least one new medical condition in 2020, compared with 21% of uninfected people in the same year.
The most commonly observed conditions included:
- Respiratory failure (7.55% higher risk).
- Fatigue (5.66% higher risk).
- High blood pressure (4.43% higher risk).
- Memory problems (2.63% higher risk).
- Kidney injury (2.59% higher risk).
- Mental health diagnoses (2.5% higher risk).
- Blood-clotting disorders (1.47 % higher risk).
- Heart rhythm disorders (2.9% higher risk).
The risk of developing new conditions was even higher among those 23,486 who were hospitalized in 2020. Those individuals showed a 23.6% higher risk for developing at least one new condition, compared with uninfected seniors in the same year. Also, patients older than 75 had a higher risk for neurological disorders, including dementia, encephalopathy, and memory problems. The researchers also found that respiratory failure and kidney injury were significantly more likely to affect men and Black patients.
When those who had COVID were compared with the group with other lower respiratory viral infections before the pandemic, only the risks of respiratory failure (2.39% higher), dementia (0.71% higher), and fatigue (0.18% higher) were higher.
Primary care providers can learn from these data to better evaluate and manage their geriatric patients with COVID-19 infection, said Amit Shah, MD, a geriatrician with the Mayo Clinic in Phoenix, in an interview.
“We must assess older patients who have had COVID-19 for more than just improvement from the respiratory symptoms of COVID-19 in post-COVID follow-up visits,” he said. “Older individuals with frailty have vulnerability to subsequent complications from severe illnesses and it is common to see post-illness diagnoses, such as new diagnosis of delirium; dementia; or renal, respiratory, or cardiac issues that is precipitated by the original illness. This study confirms that this is likely the case with COVID-19 as well.
“Primary care physicians should be vigilant for these complications, including attention to the rehabilitation needs of older patients with longer-term postviral fatigue from COVID-19,” Dr. Shah added.
Data predates ‘Omicron wave’
It remains uncertain whether sequelae will differ with the Omicron variant, but the findings remain applicable, Dr. Cohen said.
“We know that illness from the Omicron variant is on average less severe in those that have been vaccinated. However, throughout the Omicron wave, individuals who have not been vaccinated continue to have significant rates of serious illness and hospitalization,” he said.
“Our findings showed that serious illness with hospitalization was associated with a higher rate of sequelae. It can therefore be inferred that the rates of sequelae seen in our study would continue to occur in unvaccinated individuals who contract Omicron, but might occur less frequently in vaccinated individuals who contract Omicron and have less severe illness.”
Dr. Cohen serves as a consultant for Pfizer. Dr. Shah has disclosed no relevant financial relationships.
The findings of the observational study, which were published in the BMJ, show the risk of a new condition being triggered by COVID is more than twice as high in seniors, compared with younger patients. Plus, the researchers observed an even higher risk among those who were hospitalized, with nearly half (46%) of patients having developed new conditions after the acute COVID-19 infection period.
Respiratory failure with shortness of breath was the most common postacute sequela, but a wide range of heart, kidney, lung, liver, cognitive, mental health, and other conditions were diagnosed at least 3 weeks after initial infection and persisted beyond 30 days.
This is one of the first studies to specifically describe the incidence and severity of new conditions triggered by COVID-19 infection in a general sample of older adults, said study author Ken Cohen MD, FACP, executive director of translational research at Optum Labs and national senior medical director at Optum Care.
“Much of what has been published on the postacute sequelae of COVID-19 has been predominantly from a younger population, and many of the patients had been hospitalized,” Dr. Cohen noted. “This was the first study to focus on a large population of seniors, most of whom did not require hospitalization.”
Dr. Cohen and colleagues reviewed the health insurance records of more than 133,000 Medicare beneficiaries aged 65 or older who were diagnosed with COVID-19 before April 2020. They also matched individuals by age, race, sex, hospitalization status, and other factors to comparison groups without COVID-19 (one from 2020 and one from 2019), and to a group diagnosed with other lower respiratory tract viral infections before the pandemic.
Risk of developing new conditions was higher in hospitalized
After acute COVID-19 infection, 32% of seniors sought medical care for at least one new medical condition in 2020, compared with 21% of uninfected people in the same year.
The most commonly observed conditions included:
- Respiratory failure (7.55% higher risk).
- Fatigue (5.66% higher risk).
- High blood pressure (4.43% higher risk).
- Memory problems (2.63% higher risk).
- Kidney injury (2.59% higher risk).
- Mental health diagnoses (2.5% higher risk).
- Blood-clotting disorders (1.47 % higher risk).
- Heart rhythm disorders (2.9% higher risk).
The risk of developing new conditions was even higher among those 23,486 who were hospitalized in 2020. Those individuals showed a 23.6% higher risk for developing at least one new condition, compared with uninfected seniors in the same year. Also, patients older than 75 had a higher risk for neurological disorders, including dementia, encephalopathy, and memory problems. The researchers also found that respiratory failure and kidney injury were significantly more likely to affect men and Black patients.
When those who had COVID were compared with the group with other lower respiratory viral infections before the pandemic, only the risks of respiratory failure (2.39% higher), dementia (0.71% higher), and fatigue (0.18% higher) were higher.
Primary care providers can learn from these data to better evaluate and manage their geriatric patients with COVID-19 infection, said Amit Shah, MD, a geriatrician with the Mayo Clinic in Phoenix, in an interview.
“We must assess older patients who have had COVID-19 for more than just improvement from the respiratory symptoms of COVID-19 in post-COVID follow-up visits,” he said. “Older individuals with frailty have vulnerability to subsequent complications from severe illnesses and it is common to see post-illness diagnoses, such as new diagnosis of delirium; dementia; or renal, respiratory, or cardiac issues that is precipitated by the original illness. This study confirms that this is likely the case with COVID-19 as well.
“Primary care physicians should be vigilant for these complications, including attention to the rehabilitation needs of older patients with longer-term postviral fatigue from COVID-19,” Dr. Shah added.
Data predates ‘Omicron wave’
It remains uncertain whether sequelae will differ with the Omicron variant, but the findings remain applicable, Dr. Cohen said.
“We know that illness from the Omicron variant is on average less severe in those that have been vaccinated. However, throughout the Omicron wave, individuals who have not been vaccinated continue to have significant rates of serious illness and hospitalization,” he said.
“Our findings showed that serious illness with hospitalization was associated with a higher rate of sequelae. It can therefore be inferred that the rates of sequelae seen in our study would continue to occur in unvaccinated individuals who contract Omicron, but might occur less frequently in vaccinated individuals who contract Omicron and have less severe illness.”
Dr. Cohen serves as a consultant for Pfizer. Dr. Shah has disclosed no relevant financial relationships.
The findings of the observational study, which were published in the BMJ, show the risk of a new condition being triggered by COVID is more than twice as high in seniors, compared with younger patients. Plus, the researchers observed an even higher risk among those who were hospitalized, with nearly half (46%) of patients having developed new conditions after the acute COVID-19 infection period.
Respiratory failure with shortness of breath was the most common postacute sequela, but a wide range of heart, kidney, lung, liver, cognitive, mental health, and other conditions were diagnosed at least 3 weeks after initial infection and persisted beyond 30 days.
This is one of the first studies to specifically describe the incidence and severity of new conditions triggered by COVID-19 infection in a general sample of older adults, said study author Ken Cohen MD, FACP, executive director of translational research at Optum Labs and national senior medical director at Optum Care.
“Much of what has been published on the postacute sequelae of COVID-19 has been predominantly from a younger population, and many of the patients had been hospitalized,” Dr. Cohen noted. “This was the first study to focus on a large population of seniors, most of whom did not require hospitalization.”
Dr. Cohen and colleagues reviewed the health insurance records of more than 133,000 Medicare beneficiaries aged 65 or older who were diagnosed with COVID-19 before April 2020. They also matched individuals by age, race, sex, hospitalization status, and other factors to comparison groups without COVID-19 (one from 2020 and one from 2019), and to a group diagnosed with other lower respiratory tract viral infections before the pandemic.
Risk of developing new conditions was higher in hospitalized
After acute COVID-19 infection, 32% of seniors sought medical care for at least one new medical condition in 2020, compared with 21% of uninfected people in the same year.
The most commonly observed conditions included:
- Respiratory failure (7.55% higher risk).
- Fatigue (5.66% higher risk).
- High blood pressure (4.43% higher risk).
- Memory problems (2.63% higher risk).
- Kidney injury (2.59% higher risk).
- Mental health diagnoses (2.5% higher risk).
- Blood-clotting disorders (1.47 % higher risk).
- Heart rhythm disorders (2.9% higher risk).
The risk of developing new conditions was even higher among those 23,486 who were hospitalized in 2020. Those individuals showed a 23.6% higher risk for developing at least one new condition, compared with uninfected seniors in the same year. Also, patients older than 75 had a higher risk for neurological disorders, including dementia, encephalopathy, and memory problems. The researchers also found that respiratory failure and kidney injury were significantly more likely to affect men and Black patients.
When those who had COVID were compared with the group with other lower respiratory viral infections before the pandemic, only the risks of respiratory failure (2.39% higher), dementia (0.71% higher), and fatigue (0.18% higher) were higher.
Primary care providers can learn from these data to better evaluate and manage their geriatric patients with COVID-19 infection, said Amit Shah, MD, a geriatrician with the Mayo Clinic in Phoenix, in an interview.
“We must assess older patients who have had COVID-19 for more than just improvement from the respiratory symptoms of COVID-19 in post-COVID follow-up visits,” he said. “Older individuals with frailty have vulnerability to subsequent complications from severe illnesses and it is common to see post-illness diagnoses, such as new diagnosis of delirium; dementia; or renal, respiratory, or cardiac issues that is precipitated by the original illness. This study confirms that this is likely the case with COVID-19 as well.
“Primary care physicians should be vigilant for these complications, including attention to the rehabilitation needs of older patients with longer-term postviral fatigue from COVID-19,” Dr. Shah added.
Data predates ‘Omicron wave’
It remains uncertain whether sequelae will differ with the Omicron variant, but the findings remain applicable, Dr. Cohen said.
“We know that illness from the Omicron variant is on average less severe in those that have been vaccinated. However, throughout the Omicron wave, individuals who have not been vaccinated continue to have significant rates of serious illness and hospitalization,” he said.
“Our findings showed that serious illness with hospitalization was associated with a higher rate of sequelae. It can therefore be inferred that the rates of sequelae seen in our study would continue to occur in unvaccinated individuals who contract Omicron, but might occur less frequently in vaccinated individuals who contract Omicron and have less severe illness.”
Dr. Cohen serves as a consultant for Pfizer. Dr. Shah has disclosed no relevant financial relationships.
FROM BMJ
Men with hypersexual disorder may have oxytocin overload
Men with hypersexual disorder showed higher levels of oxytocin in their blood than did healthy control men without the disorder, in a study with 102 participants.
Hypersexual disorder (HD) is characterized by “excessive and persistent sexual behaviors in relation to various mood states, with an impulsivity component and experienced loss of control,” John Flanagan, MD, of the Karolinska Institutet in Stockholm and colleagues wrote. Although HD is not included as a separate diagnosis in the current DSM, the similar disorder of compulsive sexual behavior is included in the ICD.
Data on the pathophysiology of HD are limited, although a previous study by corresponding author Andreas Chatzittofis, MD, and colleagues showed evidence of neuroendocrine dysregulation in men with HD, and prompted the current study to explore the possible involvement of the oxytocinergic system in HD.
In the current study, published in the Journal of Clinical Endocrinology & Metabolism, the researchers identified 64 men with HD and 38 healthy male controls. The patients were help-seeking men older than 18 years diagnosed with HD who presented to a single center in Sweden during 2013-2014. The men were included in a randomized clinical trial of cognitive-behavioral therapy for HD, and 30 of them participated in a 7-week CBT program.
Oxytocin, secreted by the pituitary gland, is known to play a role in sexual behavior, but has not been examined in HD men, the researchers said. At baseline, the mean plasma oxytocin was 31.0 pM in the HD patients, which was significantly higher than the mean 16.9 pM in healthy controls (P < .001). However, the 30 HD men who underwent CBT showed significant improvement in oxytocin levels, from a mean pretreatment level of 30.5 to a mean posttreatment level of 20.2 pM (P = .0000019).
The study findings were limited by several factors, including the lack of data on oxytocin for a wait list or control group, as well as the inability to control for confounding factors such as diet, physical activity, ethnicity, and stress, and a lack of data on sexual activity prior to oxytocin measurements, the researchers noted.
However, “although there is no clear consensus at this point, previous studies support the use of oxytocin plasma levels as a surrogate variable for [cerebrospinal fluid] oxytocin activity,” the researchers wrote in their discussion. The current study findings support the potential of oxytocin as a biomarker for HD diagnostics and also as a measure of disease severity. Larger studies to confirm the findings, especially those that exclude potential confounders, would be valuable.
Oxytocin may be treatment target
The study is important because of the lack of knowledge regarding the pathophysiology underlying hypersexual disorder, Dr. Chatzittofis of the University of Cyprus, Nicosia, said in an interview. “This is the first study to indicate a role for oxytocin’s involvement” in hypersexual disorder in men. Dr. Chatzittofis led a team in a previous study that showed an association between HD in men and dysregulation of the hypothalamic pituitary adrenal axis.
In the current study, “we discovered that men with compulsive sexual behavior disorder had higher oxytocin levels, compared with healthy men,” said Dr. Chatzittofis, adding that the take-home message for clinicians is the potential of CBT for treatment. “Cognitive-behavior therapy led to a reduction in both hypersexual behavior and oxytocin levels.” The results suggest that oxytocin plays an important role in sex addiction.
Consequently, oxytocin may be a potential drug target for future pharmacologic treatment of hypersexual disorder, he added.
The study was supported by the Swedish Research Council, the Stockholm County Council, and by a partnership between Umeå University and Västerbotten County Council. The researchers had no financial conflicts to disclose.
Men with hypersexual disorder showed higher levels of oxytocin in their blood than did healthy control men without the disorder, in a study with 102 participants.
Hypersexual disorder (HD) is characterized by “excessive and persistent sexual behaviors in relation to various mood states, with an impulsivity component and experienced loss of control,” John Flanagan, MD, of the Karolinska Institutet in Stockholm and colleagues wrote. Although HD is not included as a separate diagnosis in the current DSM, the similar disorder of compulsive sexual behavior is included in the ICD.
Data on the pathophysiology of HD are limited, although a previous study by corresponding author Andreas Chatzittofis, MD, and colleagues showed evidence of neuroendocrine dysregulation in men with HD, and prompted the current study to explore the possible involvement of the oxytocinergic system in HD.
In the current study, published in the Journal of Clinical Endocrinology & Metabolism, the researchers identified 64 men with HD and 38 healthy male controls. The patients were help-seeking men older than 18 years diagnosed with HD who presented to a single center in Sweden during 2013-2014. The men were included in a randomized clinical trial of cognitive-behavioral therapy for HD, and 30 of them participated in a 7-week CBT program.
Oxytocin, secreted by the pituitary gland, is known to play a role in sexual behavior, but has not been examined in HD men, the researchers said. At baseline, the mean plasma oxytocin was 31.0 pM in the HD patients, which was significantly higher than the mean 16.9 pM in healthy controls (P < .001). However, the 30 HD men who underwent CBT showed significant improvement in oxytocin levels, from a mean pretreatment level of 30.5 to a mean posttreatment level of 20.2 pM (P = .0000019).
The study findings were limited by several factors, including the lack of data on oxytocin for a wait list or control group, as well as the inability to control for confounding factors such as diet, physical activity, ethnicity, and stress, and a lack of data on sexual activity prior to oxytocin measurements, the researchers noted.
However, “although there is no clear consensus at this point, previous studies support the use of oxytocin plasma levels as a surrogate variable for [cerebrospinal fluid] oxytocin activity,” the researchers wrote in their discussion. The current study findings support the potential of oxytocin as a biomarker for HD diagnostics and also as a measure of disease severity. Larger studies to confirm the findings, especially those that exclude potential confounders, would be valuable.
Oxytocin may be treatment target
The study is important because of the lack of knowledge regarding the pathophysiology underlying hypersexual disorder, Dr. Chatzittofis of the University of Cyprus, Nicosia, said in an interview. “This is the first study to indicate a role for oxytocin’s involvement” in hypersexual disorder in men. Dr. Chatzittofis led a team in a previous study that showed an association between HD in men and dysregulation of the hypothalamic pituitary adrenal axis.
In the current study, “we discovered that men with compulsive sexual behavior disorder had higher oxytocin levels, compared with healthy men,” said Dr. Chatzittofis, adding that the take-home message for clinicians is the potential of CBT for treatment. “Cognitive-behavior therapy led to a reduction in both hypersexual behavior and oxytocin levels.” The results suggest that oxytocin plays an important role in sex addiction.
Consequently, oxytocin may be a potential drug target for future pharmacologic treatment of hypersexual disorder, he added.
The study was supported by the Swedish Research Council, the Stockholm County Council, and by a partnership between Umeå University and Västerbotten County Council. The researchers had no financial conflicts to disclose.
Men with hypersexual disorder showed higher levels of oxytocin in their blood than did healthy control men without the disorder, in a study with 102 participants.
Hypersexual disorder (HD) is characterized by “excessive and persistent sexual behaviors in relation to various mood states, with an impulsivity component and experienced loss of control,” John Flanagan, MD, of the Karolinska Institutet in Stockholm and colleagues wrote. Although HD is not included as a separate diagnosis in the current DSM, the similar disorder of compulsive sexual behavior is included in the ICD.
Data on the pathophysiology of HD are limited, although a previous study by corresponding author Andreas Chatzittofis, MD, and colleagues showed evidence of neuroendocrine dysregulation in men with HD, and prompted the current study to explore the possible involvement of the oxytocinergic system in HD.
In the current study, published in the Journal of Clinical Endocrinology & Metabolism, the researchers identified 64 men with HD and 38 healthy male controls. The patients were help-seeking men older than 18 years diagnosed with HD who presented to a single center in Sweden during 2013-2014. The men were included in a randomized clinical trial of cognitive-behavioral therapy for HD, and 30 of them participated in a 7-week CBT program.
Oxytocin, secreted by the pituitary gland, is known to play a role in sexual behavior, but has not been examined in HD men, the researchers said. At baseline, the mean plasma oxytocin was 31.0 pM in the HD patients, which was significantly higher than the mean 16.9 pM in healthy controls (P < .001). However, the 30 HD men who underwent CBT showed significant improvement in oxytocin levels, from a mean pretreatment level of 30.5 to a mean posttreatment level of 20.2 pM (P = .0000019).
The study findings were limited by several factors, including the lack of data on oxytocin for a wait list or control group, as well as the inability to control for confounding factors such as diet, physical activity, ethnicity, and stress, and a lack of data on sexual activity prior to oxytocin measurements, the researchers noted.
However, “although there is no clear consensus at this point, previous studies support the use of oxytocin plasma levels as a surrogate variable for [cerebrospinal fluid] oxytocin activity,” the researchers wrote in their discussion. The current study findings support the potential of oxytocin as a biomarker for HD diagnostics and also as a measure of disease severity. Larger studies to confirm the findings, especially those that exclude potential confounders, would be valuable.
Oxytocin may be treatment target
The study is important because of the lack of knowledge regarding the pathophysiology underlying hypersexual disorder, Dr. Chatzittofis of the University of Cyprus, Nicosia, said in an interview. “This is the first study to indicate a role for oxytocin’s involvement” in hypersexual disorder in men. Dr. Chatzittofis led a team in a previous study that showed an association between HD in men and dysregulation of the hypothalamic pituitary adrenal axis.
In the current study, “we discovered that men with compulsive sexual behavior disorder had higher oxytocin levels, compared with healthy men,” said Dr. Chatzittofis, adding that the take-home message for clinicians is the potential of CBT for treatment. “Cognitive-behavior therapy led to a reduction in both hypersexual behavior and oxytocin levels.” The results suggest that oxytocin plays an important role in sex addiction.
Consequently, oxytocin may be a potential drug target for future pharmacologic treatment of hypersexual disorder, he added.
The study was supported by the Swedish Research Council, the Stockholm County Council, and by a partnership between Umeå University and Västerbotten County Council. The researchers had no financial conflicts to disclose.
FROM THE JOURNAL OF CLINICAL ENDOCRINOLOGY & METABOLISM
OTC melatonin supplement use rises fivefold over 20 years
, a new study finds, although only 2% of a recent group of survey respondents said they had taken the sleep aid within the past month.
The findings, reported Feb. 1 in a research letter in the Journal of the American Medical Association, suggest that “millions of U.S. individuals are using melatonin,” study coauthor Naima Covassin, PhD, an associate consultant at Mayo Clinic in Rochester, Minn., told this news organization. “It is important to ask patients who report sleep problems whether they consume melatonin supplements, and these findings should certainly prompt more research in this area.”
The supplements boost the levels of melatonin, a hormone that is linked to the sleep-wake cycle. “Melatonin facilitates our ability to fall asleep at our bedtime by decreasing the natural early evening circadian arousal that helps keep us alert despite our having been awake since the morning,” said David N. Neubauer, MD, a sleep specialist at Johns Hopkins University, Baltimore. “It isn’t so much that melatonin is sedating, but rather that it turns off arousal.”
For the new study, researchers tracked data from the National Health and Nutrition Examination Survey from 1999-2000 to 2017-2018 and focused on respondents aged 20 and older (n = 55,021, mean age, 47.5, 52% women). As the researchers noted, response rates dipped mightily from a high of 84% in 2001-2002 to just 51.9% in 2017-2018.
The study found that the overall reported weighted prevalence of melatonin use grew from 0.4% (95% confidence interval, 0.2%-1.0%) in 1999-2000 to 2.1% (95% CI, 1.5%-2.9%) in 2017-2018 (linear P = .004). In 93.9% of cases of reported melatonin use, the surveyors confirmed it by checking for supplement bottles.
“These trends were similar in men and women and across age groups,” Dr. Covassin said. “We also found that use of more than 5 mg/day melatonin was not reported till 2005-2006, and it has been increasing since.”
Melatonin supplements are now available in tablets, capsules, gummies, powders, liquids, sprays, and other formulations. Users can even buy CBD-melatonin combos.
The survey doesn’t explore why the respondents used melatonin nor whether they thought it actually helped them. “The study was designed to evaluate the breadth of use of melatonin, rather than its effectiveness as a sleep aid,” Dr. Covassin said.
Dr. Neubauer, who wasn’t associated with the study, said the research seems valid. According to him, melatonin use has likely grown because of marketing and a higher number of products. He added that melatonin products are being manufactured at higher doses, although melatonin has a flat dose-response curve. “Higher doses typically do not have a greater effect,” he said.
According to Dr. Covassin, melatonin is generally considered to be safe, although side effects such as fatigue, dizziness, and headaches have been reported in clinical trials. “This is especially evident when high doses are administered,” Dr. Covassin said. “Other potentially more harmful consequences have also been noted. For instance, it has been found that acute administration of melatonin may decrease glucose tolerance, which may be especially problematic in patients with preexisting vulnerabilities such in those with diabetes. There are also very limited data on whether sustained use is safe in the long run.”
Moving forward, Dr. Covassin said, “we are interested in better understanding consumption of melatonin supplements across different populations as well as the impact of chronic use.”
The study authors are supported by grants from the National Natural Science Foundation of China, National Institutes of Health, Sleep Number Corporation (to Mayo Clinic), the Alice Sheets Marriott Professorship, and the Mayo Clinic Marie Ingalls Research Career Development Award.
Dr. Covassin and Dr. Neubauer have disclosed no relevant financial relationships. Study coauthor Virend K. Somers, MD, PhD, reports having served as a consultant for Respicardia, Baker Tilly, Bayer, and Jazz Pharmaceuticals and serving on the Sleep Number Research Advisory Board.
A version of this article first appeared on Medscape.com.
, a new study finds, although only 2% of a recent group of survey respondents said they had taken the sleep aid within the past month.
The findings, reported Feb. 1 in a research letter in the Journal of the American Medical Association, suggest that “millions of U.S. individuals are using melatonin,” study coauthor Naima Covassin, PhD, an associate consultant at Mayo Clinic in Rochester, Minn., told this news organization. “It is important to ask patients who report sleep problems whether they consume melatonin supplements, and these findings should certainly prompt more research in this area.”
The supplements boost the levels of melatonin, a hormone that is linked to the sleep-wake cycle. “Melatonin facilitates our ability to fall asleep at our bedtime by decreasing the natural early evening circadian arousal that helps keep us alert despite our having been awake since the morning,” said David N. Neubauer, MD, a sleep specialist at Johns Hopkins University, Baltimore. “It isn’t so much that melatonin is sedating, but rather that it turns off arousal.”
For the new study, researchers tracked data from the National Health and Nutrition Examination Survey from 1999-2000 to 2017-2018 and focused on respondents aged 20 and older (n = 55,021, mean age, 47.5, 52% women). As the researchers noted, response rates dipped mightily from a high of 84% in 2001-2002 to just 51.9% in 2017-2018.
The study found that the overall reported weighted prevalence of melatonin use grew from 0.4% (95% confidence interval, 0.2%-1.0%) in 1999-2000 to 2.1% (95% CI, 1.5%-2.9%) in 2017-2018 (linear P = .004). In 93.9% of cases of reported melatonin use, the surveyors confirmed it by checking for supplement bottles.
“These trends were similar in men and women and across age groups,” Dr. Covassin said. “We also found that use of more than 5 mg/day melatonin was not reported till 2005-2006, and it has been increasing since.”
Melatonin supplements are now available in tablets, capsules, gummies, powders, liquids, sprays, and other formulations. Users can even buy CBD-melatonin combos.
The survey doesn’t explore why the respondents used melatonin nor whether they thought it actually helped them. “The study was designed to evaluate the breadth of use of melatonin, rather than its effectiveness as a sleep aid,” Dr. Covassin said.
Dr. Neubauer, who wasn’t associated with the study, said the research seems valid. According to him, melatonin use has likely grown because of marketing and a higher number of products. He added that melatonin products are being manufactured at higher doses, although melatonin has a flat dose-response curve. “Higher doses typically do not have a greater effect,” he said.
According to Dr. Covassin, melatonin is generally considered to be safe, although side effects such as fatigue, dizziness, and headaches have been reported in clinical trials. “This is especially evident when high doses are administered,” Dr. Covassin said. “Other potentially more harmful consequences have also been noted. For instance, it has been found that acute administration of melatonin may decrease glucose tolerance, which may be especially problematic in patients with preexisting vulnerabilities such in those with diabetes. There are also very limited data on whether sustained use is safe in the long run.”
Moving forward, Dr. Covassin said, “we are interested in better understanding consumption of melatonin supplements across different populations as well as the impact of chronic use.”
The study authors are supported by grants from the National Natural Science Foundation of China, National Institutes of Health, Sleep Number Corporation (to Mayo Clinic), the Alice Sheets Marriott Professorship, and the Mayo Clinic Marie Ingalls Research Career Development Award.
Dr. Covassin and Dr. Neubauer have disclosed no relevant financial relationships. Study coauthor Virend K. Somers, MD, PhD, reports having served as a consultant for Respicardia, Baker Tilly, Bayer, and Jazz Pharmaceuticals and serving on the Sleep Number Research Advisory Board.
A version of this article first appeared on Medscape.com.
, a new study finds, although only 2% of a recent group of survey respondents said they had taken the sleep aid within the past month.
The findings, reported Feb. 1 in a research letter in the Journal of the American Medical Association, suggest that “millions of U.S. individuals are using melatonin,” study coauthor Naima Covassin, PhD, an associate consultant at Mayo Clinic in Rochester, Minn., told this news organization. “It is important to ask patients who report sleep problems whether they consume melatonin supplements, and these findings should certainly prompt more research in this area.”
The supplements boost the levels of melatonin, a hormone that is linked to the sleep-wake cycle. “Melatonin facilitates our ability to fall asleep at our bedtime by decreasing the natural early evening circadian arousal that helps keep us alert despite our having been awake since the morning,” said David N. Neubauer, MD, a sleep specialist at Johns Hopkins University, Baltimore. “It isn’t so much that melatonin is sedating, but rather that it turns off arousal.”
For the new study, researchers tracked data from the National Health and Nutrition Examination Survey from 1999-2000 to 2017-2018 and focused on respondents aged 20 and older (n = 55,021, mean age, 47.5, 52% women). As the researchers noted, response rates dipped mightily from a high of 84% in 2001-2002 to just 51.9% in 2017-2018.
The study found that the overall reported weighted prevalence of melatonin use grew from 0.4% (95% confidence interval, 0.2%-1.0%) in 1999-2000 to 2.1% (95% CI, 1.5%-2.9%) in 2017-2018 (linear P = .004). In 93.9% of cases of reported melatonin use, the surveyors confirmed it by checking for supplement bottles.
“These trends were similar in men and women and across age groups,” Dr. Covassin said. “We also found that use of more than 5 mg/day melatonin was not reported till 2005-2006, and it has been increasing since.”
Melatonin supplements are now available in tablets, capsules, gummies, powders, liquids, sprays, and other formulations. Users can even buy CBD-melatonin combos.
The survey doesn’t explore why the respondents used melatonin nor whether they thought it actually helped them. “The study was designed to evaluate the breadth of use of melatonin, rather than its effectiveness as a sleep aid,” Dr. Covassin said.
Dr. Neubauer, who wasn’t associated with the study, said the research seems valid. According to him, melatonin use has likely grown because of marketing and a higher number of products. He added that melatonin products are being manufactured at higher doses, although melatonin has a flat dose-response curve. “Higher doses typically do not have a greater effect,” he said.
According to Dr. Covassin, melatonin is generally considered to be safe, although side effects such as fatigue, dizziness, and headaches have been reported in clinical trials. “This is especially evident when high doses are administered,” Dr. Covassin said. “Other potentially more harmful consequences have also been noted. For instance, it has been found that acute administration of melatonin may decrease glucose tolerance, which may be especially problematic in patients with preexisting vulnerabilities such in those with diabetes. There are also very limited data on whether sustained use is safe in the long run.”
Moving forward, Dr. Covassin said, “we are interested in better understanding consumption of melatonin supplements across different populations as well as the impact of chronic use.”
The study authors are supported by grants from the National Natural Science Foundation of China, National Institutes of Health, Sleep Number Corporation (to Mayo Clinic), the Alice Sheets Marriott Professorship, and the Mayo Clinic Marie Ingalls Research Career Development Award.
Dr. Covassin and Dr. Neubauer have disclosed no relevant financial relationships. Study coauthor Virend K. Somers, MD, PhD, reports having served as a consultant for Respicardia, Baker Tilly, Bayer, and Jazz Pharmaceuticals and serving on the Sleep Number Research Advisory Board.
A version of this article first appeared on Medscape.com.
FROM JAMA
Preschool boys’ behaviors traced back to moms’ thyroid hormones
Pregnant women’s thyroid hormone trajectories (levels in the first, second, and third trimester) may predict whether their male offspring are aggressive or withdrawn at age 4.
Certain maternal thyroid hormone trajectories were associated with problem behaviors in preschool boys in a study of close to 2,000 mother-child pairs in China.
The researchers identified low, moderate, and high thyroid-stimulating hormone (TSH) and free thyroxine (FT4) trajectories.
Most women had a low TSH trajectory and moderate FT4 trajectory, which the researchers deemed to be reference (normal) trajectories.
The children’s primary caregiver (parent or grandparent) completed an extensive questionnaire about their child’s behavior at age 4.
The 4-year-old boys whose mothers had a high TSH trajectory during pregnancy were more likely to be withdrawn and to externalize problems (odds ratio, 2.01 and 2.69, respectively).
Boys whose mothers had a high FT4 trajectory during pregnancy were more likely to be anxious/depressed (OR, 2.22).
And boys whose mothers had a moderate TSH trajectory or low FT4 trajectory were more likely to show aggressive behavior (OR, 3.76 and 4.17, respectively), compared with boys whose mothers had normal TSH and FT4 trajectories, after adjusting for potential confounders.
However, there was no association between abnormal maternal thyroid hormone trajectories and behavior problems in 4-year-old girls.
The study by Peixuan Li, BM, and colleagues was published online Jan. 6 in the Journal of Clinical Endocrinology & Metabolism.
‘Study supports monitoring thyroid function in pregnancy’
“Our findings highlight the significance of close monitoring and management of maternal thyroid function during pregnancy,” senior author Kun Huang, PhD, said in a press release from the Endocrine Society.
“This research presents a new perspective in early intervention of children’s emotional and behavioral problems,” added Dr. Huang, from Anhui Medical University, Hefei, China.
The results add to a growing body of literature about a controversial link between maternal thyroid hormones in pregnancy, when the fetal brain is developing, and subsequent behavior in preschool children, Caroline T. Nguyen, MD, who was not involved with this research, commented in an email.
“Some studies show an association between thyroid levels and behavioral outcomes, others not,” added Dr. Nguyen, assistant professor of clinical medicine, Keck School of Medicine, University of Southern California, Los Angeles. And “some studies have found sex-specific associations with maternal thyroid levels and neurocognitive/behavioral outcomes, others have not.”
Women considering pregnancy should be evaluated for possible thyroid disease, she continued. Currently, no universal screening mandates exist for thyroid disease in pregnancy, but the 2017 American Thyroid Association guidelines do recommend screening women at risk for thyroid dysfunction.
“I think screening for thyroid peroxidase antibody (TPOAb) positivity is helpful in women desiring pregnancy,” Dr. Nguyen continued, “because we know that patients with TPOAb positivity are at increased risk for miscarriage and have a blunted response to the increased demands of pregnancy for thyroid hormone production.”
TPOAb positivity is also associated with the increased risk of postpartum and long-term thyroid dysfunction.
This current study, Dr. Nguyen summarized, “adds to a growing body of research of the relationship of thyroid hormone levels and neurocognitive outcomes [in offspring] and supports the monitoring of thyroid disease in pregnancy.”
“However, we do not have sufficient data to demonstrate the benefits of intervention with levothyroxine treatment,” she noted.
Nevertheless, the lack of positive data does not suggest there is no theoretical benefit of intervention, she said, as such studies are very challenging to do.
“Physicians can help reduce stress and anxiety in patients desiring pregnancy by [recommending] preconception counseling, screening patients at risk for thyroid disease, and optimizing thyroid hormone levels before and during pregnancy,” according to Dr. Nguyen.
Maternal TSH and FT4 trajectories and preschoolers’ behaviors
Previous studies have reported that during pregnancy, maternal subclinical hypothyroidism (elevated TSH with normal FT4) as well as isolated hypothyroxinemia (decreased FT4 with normal TSH) are associated with adverse maternal and child outcomes, including preterm delivery and low birth weight.
However, most studies have not determined maternal thyroid hormone levels in different trimesters.
Researchers recruited pregnant women going for their first antenatal checkup at the Ma’anshan Maternal and Child Health Hospital in China from May 2013 to September 2014 and identified 1,860 mother-child pairs.
They determined maternal thyroid hormone levels from blood samples taken during the first, second, and third trimester: on average, gestational week 10, 25, and 34, respectively.
The researchers found that TSH levels increased somewhat from trimester 1 to trimester 2 and then decreased slightly in trimester 3. Most women (68%) had a low TSH trajectory, 28% had a moderate TSH trajectory, and 4% had a high TSH trajectory.
FT4 levels dropped sharply from trimester 1 to trimester 2 and then increased somewhat in trimester 3. About half of the women (52%) had a moderate FT4 trajectory, 33% had a low FT4 trajectory, and 15% had a high FT4 trajectory.
Most women (96.5%) had a low and stable TPOAb level, and the rest (3.5%) had high and decreasing TPOAb levels.
When the children in the study were 4 years old, their main caregiver (parent or grandparent) completed the 100-question Achenbach Child Behavior checklist to identify whether the child often, sometimes, or never displayed three internalizing problem behaviors (emotionally reactive, anxious/depressed, or withdrawn) and/or two externalizing problem behaviors (attention problems or aggressive behavior).
Study limitations, more research needed
It is not clear why the associations between maternal hormones and offspring behavior were only seen in boys. Perhaps male fetuses are more sensitive than female fetuses to changing maternal thyroid hormone levels in pregnancy, the researchers speculate.
They acknowledge that study limitations include there were few children with aggressive behavior, so the confidence interval for the association of the moderate TSH trajectory with aggressive behavior was very wide.
In addition, evaluation of children’s behavior by caregivers was subjective. Also, the researchers did not have information about iodine levels, and low iodine levels can impair child brain development.
And there may have been residual confounders that researchers did not account for, such as differences in family upbringing, parental marital status, and the mother’s exposure to endocrine disruptors.
Therefore, further research is needed.
The study was supported by grants from the National Natural Science Foundation of China, the University Synergy Innovation Program of Anhui Province, the Sci-Tech Basic Resources Research Program of China, the National Key Research and Development Program, the Chinese Academy of Medical Sciences, and the Research Fund of Anhui Institute of Translational Medicine. The researchers and Dr. Nguyen have reported no relevant financial relationships.
A version of this article first appeared on Medscape.com.
Pregnant women’s thyroid hormone trajectories (levels in the first, second, and third trimester) may predict whether their male offspring are aggressive or withdrawn at age 4.
Certain maternal thyroid hormone trajectories were associated with problem behaviors in preschool boys in a study of close to 2,000 mother-child pairs in China.
The researchers identified low, moderate, and high thyroid-stimulating hormone (TSH) and free thyroxine (FT4) trajectories.
Most women had a low TSH trajectory and moderate FT4 trajectory, which the researchers deemed to be reference (normal) trajectories.
The children’s primary caregiver (parent or grandparent) completed an extensive questionnaire about their child’s behavior at age 4.
The 4-year-old boys whose mothers had a high TSH trajectory during pregnancy were more likely to be withdrawn and to externalize problems (odds ratio, 2.01 and 2.69, respectively).
Boys whose mothers had a high FT4 trajectory during pregnancy were more likely to be anxious/depressed (OR, 2.22).
And boys whose mothers had a moderate TSH trajectory or low FT4 trajectory were more likely to show aggressive behavior (OR, 3.76 and 4.17, respectively), compared with boys whose mothers had normal TSH and FT4 trajectories, after adjusting for potential confounders.
However, there was no association between abnormal maternal thyroid hormone trajectories and behavior problems in 4-year-old girls.
The study by Peixuan Li, BM, and colleagues was published online Jan. 6 in the Journal of Clinical Endocrinology & Metabolism.
‘Study supports monitoring thyroid function in pregnancy’
“Our findings highlight the significance of close monitoring and management of maternal thyroid function during pregnancy,” senior author Kun Huang, PhD, said in a press release from the Endocrine Society.
“This research presents a new perspective in early intervention of children’s emotional and behavioral problems,” added Dr. Huang, from Anhui Medical University, Hefei, China.
The results add to a growing body of literature about a controversial link between maternal thyroid hormones in pregnancy, when the fetal brain is developing, and subsequent behavior in preschool children, Caroline T. Nguyen, MD, who was not involved with this research, commented in an email.
“Some studies show an association between thyroid levels and behavioral outcomes, others not,” added Dr. Nguyen, assistant professor of clinical medicine, Keck School of Medicine, University of Southern California, Los Angeles. And “some studies have found sex-specific associations with maternal thyroid levels and neurocognitive/behavioral outcomes, others have not.”
Women considering pregnancy should be evaluated for possible thyroid disease, she continued. Currently, no universal screening mandates exist for thyroid disease in pregnancy, but the 2017 American Thyroid Association guidelines do recommend screening women at risk for thyroid dysfunction.
“I think screening for thyroid peroxidase antibody (TPOAb) positivity is helpful in women desiring pregnancy,” Dr. Nguyen continued, “because we know that patients with TPOAb positivity are at increased risk for miscarriage and have a blunted response to the increased demands of pregnancy for thyroid hormone production.”
TPOAb positivity is also associated with the increased risk of postpartum and long-term thyroid dysfunction.
This current study, Dr. Nguyen summarized, “adds to a growing body of research of the relationship of thyroid hormone levels and neurocognitive outcomes [in offspring] and supports the monitoring of thyroid disease in pregnancy.”
“However, we do not have sufficient data to demonstrate the benefits of intervention with levothyroxine treatment,” she noted.
Nevertheless, the lack of positive data does not suggest there is no theoretical benefit of intervention, she said, as such studies are very challenging to do.
“Physicians can help reduce stress and anxiety in patients desiring pregnancy by [recommending] preconception counseling, screening patients at risk for thyroid disease, and optimizing thyroid hormone levels before and during pregnancy,” according to Dr. Nguyen.
Maternal TSH and FT4 trajectories and preschoolers’ behaviors
Previous studies have reported that during pregnancy, maternal subclinical hypothyroidism (elevated TSH with normal FT4) as well as isolated hypothyroxinemia (decreased FT4 with normal TSH) are associated with adverse maternal and child outcomes, including preterm delivery and low birth weight.
However, most studies have not determined maternal thyroid hormone levels in different trimesters.
Researchers recruited pregnant women going for their first antenatal checkup at the Ma’anshan Maternal and Child Health Hospital in China from May 2013 to September 2014 and identified 1,860 mother-child pairs.
They determined maternal thyroid hormone levels from blood samples taken during the first, second, and third trimester: on average, gestational week 10, 25, and 34, respectively.
The researchers found that TSH levels increased somewhat from trimester 1 to trimester 2 and then decreased slightly in trimester 3. Most women (68%) had a low TSH trajectory, 28% had a moderate TSH trajectory, and 4% had a high TSH trajectory.
FT4 levels dropped sharply from trimester 1 to trimester 2 and then increased somewhat in trimester 3. About half of the women (52%) had a moderate FT4 trajectory, 33% had a low FT4 trajectory, and 15% had a high FT4 trajectory.
Most women (96.5%) had a low and stable TPOAb level, and the rest (3.5%) had high and decreasing TPOAb levels.
When the children in the study were 4 years old, their main caregiver (parent or grandparent) completed the 100-question Achenbach Child Behavior checklist to identify whether the child often, sometimes, or never displayed three internalizing problem behaviors (emotionally reactive, anxious/depressed, or withdrawn) and/or two externalizing problem behaviors (attention problems or aggressive behavior).
Study limitations, more research needed
It is not clear why the associations between maternal hormones and offspring behavior were only seen in boys. Perhaps male fetuses are more sensitive than female fetuses to changing maternal thyroid hormone levels in pregnancy, the researchers speculate.
They acknowledge that study limitations include there were few children with aggressive behavior, so the confidence interval for the association of the moderate TSH trajectory with aggressive behavior was very wide.
In addition, evaluation of children’s behavior by caregivers was subjective. Also, the researchers did not have information about iodine levels, and low iodine levels can impair child brain development.
And there may have been residual confounders that researchers did not account for, such as differences in family upbringing, parental marital status, and the mother’s exposure to endocrine disruptors.
Therefore, further research is needed.
The study was supported by grants from the National Natural Science Foundation of China, the University Synergy Innovation Program of Anhui Province, the Sci-Tech Basic Resources Research Program of China, the National Key Research and Development Program, the Chinese Academy of Medical Sciences, and the Research Fund of Anhui Institute of Translational Medicine. The researchers and Dr. Nguyen have reported no relevant financial relationships.
A version of this article first appeared on Medscape.com.
Pregnant women’s thyroid hormone trajectories (levels in the first, second, and third trimester) may predict whether their male offspring are aggressive or withdrawn at age 4.
Certain maternal thyroid hormone trajectories were associated with problem behaviors in preschool boys in a study of close to 2,000 mother-child pairs in China.
The researchers identified low, moderate, and high thyroid-stimulating hormone (TSH) and free thyroxine (FT4) trajectories.
Most women had a low TSH trajectory and moderate FT4 trajectory, which the researchers deemed to be reference (normal) trajectories.
The children’s primary caregiver (parent or grandparent) completed an extensive questionnaire about their child’s behavior at age 4.
The 4-year-old boys whose mothers had a high TSH trajectory during pregnancy were more likely to be withdrawn and to externalize problems (odds ratio, 2.01 and 2.69, respectively).
Boys whose mothers had a high FT4 trajectory during pregnancy were more likely to be anxious/depressed (OR, 2.22).
And boys whose mothers had a moderate TSH trajectory or low FT4 trajectory were more likely to show aggressive behavior (OR, 3.76 and 4.17, respectively), compared with boys whose mothers had normal TSH and FT4 trajectories, after adjusting for potential confounders.
However, there was no association between abnormal maternal thyroid hormone trajectories and behavior problems in 4-year-old girls.
The study by Peixuan Li, BM, and colleagues was published online Jan. 6 in the Journal of Clinical Endocrinology & Metabolism.
‘Study supports monitoring thyroid function in pregnancy’
“Our findings highlight the significance of close monitoring and management of maternal thyroid function during pregnancy,” senior author Kun Huang, PhD, said in a press release from the Endocrine Society.
“This research presents a new perspective in early intervention of children’s emotional and behavioral problems,” added Dr. Huang, from Anhui Medical University, Hefei, China.
The results add to a growing body of literature about a controversial link between maternal thyroid hormones in pregnancy, when the fetal brain is developing, and subsequent behavior in preschool children, Caroline T. Nguyen, MD, who was not involved with this research, commented in an email.
“Some studies show an association between thyroid levels and behavioral outcomes, others not,” added Dr. Nguyen, assistant professor of clinical medicine, Keck School of Medicine, University of Southern California, Los Angeles. And “some studies have found sex-specific associations with maternal thyroid levels and neurocognitive/behavioral outcomes, others have not.”
Women considering pregnancy should be evaluated for possible thyroid disease, she continued. Currently, no universal screening mandates exist for thyroid disease in pregnancy, but the 2017 American Thyroid Association guidelines do recommend screening women at risk for thyroid dysfunction.
“I think screening for thyroid peroxidase antibody (TPOAb) positivity is helpful in women desiring pregnancy,” Dr. Nguyen continued, “because we know that patients with TPOAb positivity are at increased risk for miscarriage and have a blunted response to the increased demands of pregnancy for thyroid hormone production.”
TPOAb positivity is also associated with the increased risk of postpartum and long-term thyroid dysfunction.
This current study, Dr. Nguyen summarized, “adds to a growing body of research of the relationship of thyroid hormone levels and neurocognitive outcomes [in offspring] and supports the monitoring of thyroid disease in pregnancy.”
“However, we do not have sufficient data to demonstrate the benefits of intervention with levothyroxine treatment,” she noted.
Nevertheless, the lack of positive data does not suggest there is no theoretical benefit of intervention, she said, as such studies are very challenging to do.
“Physicians can help reduce stress and anxiety in patients desiring pregnancy by [recommending] preconception counseling, screening patients at risk for thyroid disease, and optimizing thyroid hormone levels before and during pregnancy,” according to Dr. Nguyen.
Maternal TSH and FT4 trajectories and preschoolers’ behaviors
Previous studies have reported that during pregnancy, maternal subclinical hypothyroidism (elevated TSH with normal FT4) as well as isolated hypothyroxinemia (decreased FT4 with normal TSH) are associated with adverse maternal and child outcomes, including preterm delivery and low birth weight.
However, most studies have not determined maternal thyroid hormone levels in different trimesters.
Researchers recruited pregnant women going for their first antenatal checkup at the Ma’anshan Maternal and Child Health Hospital in China from May 2013 to September 2014 and identified 1,860 mother-child pairs.
They determined maternal thyroid hormone levels from blood samples taken during the first, second, and third trimester: on average, gestational week 10, 25, and 34, respectively.
The researchers found that TSH levels increased somewhat from trimester 1 to trimester 2 and then decreased slightly in trimester 3. Most women (68%) had a low TSH trajectory, 28% had a moderate TSH trajectory, and 4% had a high TSH trajectory.
FT4 levels dropped sharply from trimester 1 to trimester 2 and then increased somewhat in trimester 3. About half of the women (52%) had a moderate FT4 trajectory, 33% had a low FT4 trajectory, and 15% had a high FT4 trajectory.
Most women (96.5%) had a low and stable TPOAb level, and the rest (3.5%) had high and decreasing TPOAb levels.
When the children in the study were 4 years old, their main caregiver (parent or grandparent) completed the 100-question Achenbach Child Behavior checklist to identify whether the child often, sometimes, or never displayed three internalizing problem behaviors (emotionally reactive, anxious/depressed, or withdrawn) and/or two externalizing problem behaviors (attention problems or aggressive behavior).
Study limitations, more research needed
It is not clear why the associations between maternal hormones and offspring behavior were only seen in boys. Perhaps male fetuses are more sensitive than female fetuses to changing maternal thyroid hormone levels in pregnancy, the researchers speculate.
They acknowledge that study limitations include there were few children with aggressive behavior, so the confidence interval for the association of the moderate TSH trajectory with aggressive behavior was very wide.
In addition, evaluation of children’s behavior by caregivers was subjective. Also, the researchers did not have information about iodine levels, and low iodine levels can impair child brain development.
And there may have been residual confounders that researchers did not account for, such as differences in family upbringing, parental marital status, and the mother’s exposure to endocrine disruptors.
Therefore, further research is needed.
The study was supported by grants from the National Natural Science Foundation of China, the University Synergy Innovation Program of Anhui Province, the Sci-Tech Basic Resources Research Program of China, the National Key Research and Development Program, the Chinese Academy of Medical Sciences, and the Research Fund of Anhui Institute of Translational Medicine. The researchers and Dr. Nguyen have reported no relevant financial relationships.
A version of this article first appeared on Medscape.com.
FROM THE JOURNAL OF CLINICAL ENDOCRINOLOGY & METABOLISM
Benign adrenal tumors linked to hypertension, type 2 diabetes
In more than 15% of people with benign adrenal tumors, the growths produce clinically relevant levels of serum cortisol that are significantly linked with an increased prevalence of hypertension and, in 5% of those with Cushing syndrome (CS), an increased prevalence of type 2 diabetes, based on data from more than 1,300 people with benign adrenal tumors, the largest reported prospective study of the disorder.
The study results showed that mild autonomous cortisol secretion (MACS) from benign adrenal tumors “is very frequent and is an important risk condition for high blood pressure and type 2 diabetes, especially in older women,” said Alessandro Prete, MD, lead author of the study which was published online Jan. 3, 2022, in Annals of Internal Medicine.
“The impact of MACS on high blood pressure and risk for type 2 diabetes has been underestimated until now,” said Dr. Prete, an endocrinologist at the University of Birmingham (England), in a written statement.
Results from previous studies “suggested that MACS is associated with poor health. Our study is the largest to establish conclusively the extent of the risk and severity of high blood pressure and type 2 diabetes in patients with MACS,” said Wiebke Arlt, MD, DSc, senior author and director of the Institute of Metabolism & Systems Research at the University of Birmingham.
All patients found to have a benign adrenal tumor should undergo testing for MACS and have their blood pressure and glucose levels measured regularly, Dr. Arlt advised in the statement released by the University of Birmingham.
MACS more common than previously thought
The new findings show that MACS “is more common and may have a more negative impact on health than previously thought, including increasing the risk for type 2 diabetes,” commented Lucy Chambers, PhD, head of research communications at Diabetes UK. “The findings suggest that screening for MACS could help identify people – particularly women, in whom the condition was found to be more common – who may benefit from support to reduce their risk of type 2 diabetes.”
The study included 1,305 people with newly diagnosed, benign adrenal tumors greater than 1 cm, a subset of patients prospectively enrolled in a study with the primary purpose of validating a novel way to diagnose adrenocortical carcinomas. Patients underwent treatment in 2011-2016 at any of 14 tertiary centers in 11 countries.
Researchers used a MACS definition of failure to suppress morning serum cortisol concentration to less than 50 nmol/L after treatment with 1 mg oral dexamethasone at 11 p.m. the previous evening in those with no clinical features of CS.
Roughly half of patients (n = 649) showed normal cortisol suppression with dexamethasone, identifying them as having nonfunctioning adrenal tumors, and about 35% showed possible MACS based on having moderate levels of excess cortisol.
Nearly 11% (n = 140) showed definitive MACS with more robust cortisol levels, and 5% (n = 65) received a diagnosis of clinically overt CS despite selection criteria meant to exclude people with clinical signs of CS.
There was a clear relationship between patient sex and severity of autonomous cortisol production. Among those with nonfunctioning adrenal tumors, 64% were women, which rose to 74% women in those with definitive MACS and 86% women among those with CS. The median age of participants was 60 years old.
Increasing cortisol levels linked with cardiometabolic disease
Analysis of the prevalence of hypertension and type 2 diabetes after adjustment for age, sex, and body mass index showed that, compared with people with nonfunctioning adrenal tumors, those with definitive MACS had a significant 15% higher rate of hypertension and those with overt CS had a 37% higher rate.
Higher levels of excess cortisol were also directly linked with an increased need for treatment with three or more antihypertensive agents to control blood pressure. Those with definitive MACS had a significant 31% higher rate of being on three or more drugs, and those with overt CS had a greater than twofold higher rate.
People with overt CS also had a significant 62% higher rate of type 2 diabetes, compared with those with a nonfunctioning tumor, but in those with definitive MACS the association was not significant. However, people with definitive MACS or overt CS who had type 2 diabetes and also had significantly increased rates of requiring insulin treatment.
The findings show that “people with definitive MACS carry an increased cardiometabolic burden similar to that seen in CS even if they do not display typical features of clinically overt cortisol excess,” the authors wrote in the report.
Even among those with apparently nonfunctioning tumors, each 10 nmol/L rise in cortisol level during a dexamethasone-suppression test was associated with a higher cardiometabolic disease burden. This observation suggests that current diagnostic cutoffs for the suppression test may miss some people with clinically relevant autonomous cortisol secretion, the report said. The study findings also suggest that people with benign adrenal tumors show a progressive continuum of excess cortisol with clinical consequences that increase as levels increase.
Determine the consequences of cortisol secretion
“These data clearly support the European Society of Endocrinology guideline recommendations that clinicians should determine precisely the cardiometabolic consequences of mild cortisol secretion in patients with adrenal lesions,” André Lacroix, MD, wrote in an accompanying editorial.
But Dr. Lacroix included some caveats. He noted the “potential pitfalls in relying on a single total serum cortisol value after the 1-mg dexamethasone test.” He also wondered whether the analysis used optimal cortisol values to distinguish patient subgroups.
Plus, “even in patients with nonfunctioning adrenal tumors the prevalence of diabetes and hypertension is higher than in the general population, raising concerns about the cardiometabolic consequences of barely detectable cortisol excess,” wrote Dr. Lacroix, an endocrinologist at the CHUM Research Center and professor of medicine at the University of Montreal.
The study received no commercial funding. Dr. Prete, Dr. Chambers, and Dr. Lacroix have reported no relevant financial relationships. Dr. Arlt is listed as an inventor on a patent on the use of steroid profiling as a biomarker tool for the differential diagnosis of adrenal tumors.
A version of this article first appeared on Medscape.com.
In more than 15% of people with benign adrenal tumors, the growths produce clinically relevant levels of serum cortisol that are significantly linked with an increased prevalence of hypertension and, in 5% of those with Cushing syndrome (CS), an increased prevalence of type 2 diabetes, based on data from more than 1,300 people with benign adrenal tumors, the largest reported prospective study of the disorder.
The study results showed that mild autonomous cortisol secretion (MACS) from benign adrenal tumors “is very frequent and is an important risk condition for high blood pressure and type 2 diabetes, especially in older women,” said Alessandro Prete, MD, lead author of the study which was published online Jan. 3, 2022, in Annals of Internal Medicine.
“The impact of MACS on high blood pressure and risk for type 2 diabetes has been underestimated until now,” said Dr. Prete, an endocrinologist at the University of Birmingham (England), in a written statement.
Results from previous studies “suggested that MACS is associated with poor health. Our study is the largest to establish conclusively the extent of the risk and severity of high blood pressure and type 2 diabetes in patients with MACS,” said Wiebke Arlt, MD, DSc, senior author and director of the Institute of Metabolism & Systems Research at the University of Birmingham.
All patients found to have a benign adrenal tumor should undergo testing for MACS and have their blood pressure and glucose levels measured regularly, Dr. Arlt advised in the statement released by the University of Birmingham.
MACS more common than previously thought
The new findings show that MACS “is more common and may have a more negative impact on health than previously thought, including increasing the risk for type 2 diabetes,” commented Lucy Chambers, PhD, head of research communications at Diabetes UK. “The findings suggest that screening for MACS could help identify people – particularly women, in whom the condition was found to be more common – who may benefit from support to reduce their risk of type 2 diabetes.”
The study included 1,305 people with newly diagnosed, benign adrenal tumors greater than 1 cm, a subset of patients prospectively enrolled in a study with the primary purpose of validating a novel way to diagnose adrenocortical carcinomas. Patients underwent treatment in 2011-2016 at any of 14 tertiary centers in 11 countries.
Researchers used a MACS definition of failure to suppress morning serum cortisol concentration to less than 50 nmol/L after treatment with 1 mg oral dexamethasone at 11 p.m. the previous evening in those with no clinical features of CS.
Roughly half of patients (n = 649) showed normal cortisol suppression with dexamethasone, identifying them as having nonfunctioning adrenal tumors, and about 35% showed possible MACS based on having moderate levels of excess cortisol.
Nearly 11% (n = 140) showed definitive MACS with more robust cortisol levels, and 5% (n = 65) received a diagnosis of clinically overt CS despite selection criteria meant to exclude people with clinical signs of CS.
There was a clear relationship between patient sex and severity of autonomous cortisol production. Among those with nonfunctioning adrenal tumors, 64% were women, which rose to 74% women in those with definitive MACS and 86% women among those with CS. The median age of participants was 60 years old.
Increasing cortisol levels linked with cardiometabolic disease
Analysis of the prevalence of hypertension and type 2 diabetes after adjustment for age, sex, and body mass index showed that, compared with people with nonfunctioning adrenal tumors, those with definitive MACS had a significant 15% higher rate of hypertension and those with overt CS had a 37% higher rate.
Higher levels of excess cortisol were also directly linked with an increased need for treatment with three or more antihypertensive agents to control blood pressure. Those with definitive MACS had a significant 31% higher rate of being on three or more drugs, and those with overt CS had a greater than twofold higher rate.
People with overt CS also had a significant 62% higher rate of type 2 diabetes, compared with those with a nonfunctioning tumor, but in those with definitive MACS the association was not significant. However, people with definitive MACS or overt CS who had type 2 diabetes and also had significantly increased rates of requiring insulin treatment.
The findings show that “people with definitive MACS carry an increased cardiometabolic burden similar to that seen in CS even if they do not display typical features of clinically overt cortisol excess,” the authors wrote in the report.
Even among those with apparently nonfunctioning tumors, each 10 nmol/L rise in cortisol level during a dexamethasone-suppression test was associated with a higher cardiometabolic disease burden. This observation suggests that current diagnostic cutoffs for the suppression test may miss some people with clinically relevant autonomous cortisol secretion, the report said. The study findings also suggest that people with benign adrenal tumors show a progressive continuum of excess cortisol with clinical consequences that increase as levels increase.
Determine the consequences of cortisol secretion
“These data clearly support the European Society of Endocrinology guideline recommendations that clinicians should determine precisely the cardiometabolic consequences of mild cortisol secretion in patients with adrenal lesions,” André Lacroix, MD, wrote in an accompanying editorial.
But Dr. Lacroix included some caveats. He noted the “potential pitfalls in relying on a single total serum cortisol value after the 1-mg dexamethasone test.” He also wondered whether the analysis used optimal cortisol values to distinguish patient subgroups.
Plus, “even in patients with nonfunctioning adrenal tumors the prevalence of diabetes and hypertension is higher than in the general population, raising concerns about the cardiometabolic consequences of barely detectable cortisol excess,” wrote Dr. Lacroix, an endocrinologist at the CHUM Research Center and professor of medicine at the University of Montreal.
The study received no commercial funding. Dr. Prete, Dr. Chambers, and Dr. Lacroix have reported no relevant financial relationships. Dr. Arlt is listed as an inventor on a patent on the use of steroid profiling as a biomarker tool for the differential diagnosis of adrenal tumors.
A version of this article first appeared on Medscape.com.
In more than 15% of people with benign adrenal tumors, the growths produce clinically relevant levels of serum cortisol that are significantly linked with an increased prevalence of hypertension and, in 5% of those with Cushing syndrome (CS), an increased prevalence of type 2 diabetes, based on data from more than 1,300 people with benign adrenal tumors, the largest reported prospective study of the disorder.
The study results showed that mild autonomous cortisol secretion (MACS) from benign adrenal tumors “is very frequent and is an important risk condition for high blood pressure and type 2 diabetes, especially in older women,” said Alessandro Prete, MD, lead author of the study which was published online Jan. 3, 2022, in Annals of Internal Medicine.
“The impact of MACS on high blood pressure and risk for type 2 diabetes has been underestimated until now,” said Dr. Prete, an endocrinologist at the University of Birmingham (England), in a written statement.
Results from previous studies “suggested that MACS is associated with poor health. Our study is the largest to establish conclusively the extent of the risk and severity of high blood pressure and type 2 diabetes in patients with MACS,” said Wiebke Arlt, MD, DSc, senior author and director of the Institute of Metabolism & Systems Research at the University of Birmingham.
All patients found to have a benign adrenal tumor should undergo testing for MACS and have their blood pressure and glucose levels measured regularly, Dr. Arlt advised in the statement released by the University of Birmingham.
MACS more common than previously thought
The new findings show that MACS “is more common and may have a more negative impact on health than previously thought, including increasing the risk for type 2 diabetes,” commented Lucy Chambers, PhD, head of research communications at Diabetes UK. “The findings suggest that screening for MACS could help identify people – particularly women, in whom the condition was found to be more common – who may benefit from support to reduce their risk of type 2 diabetes.”
The study included 1,305 people with newly diagnosed, benign adrenal tumors greater than 1 cm, a subset of patients prospectively enrolled in a study with the primary purpose of validating a novel way to diagnose adrenocortical carcinomas. Patients underwent treatment in 2011-2016 at any of 14 tertiary centers in 11 countries.
Researchers used a MACS definition of failure to suppress morning serum cortisol concentration to less than 50 nmol/L after treatment with 1 mg oral dexamethasone at 11 p.m. the previous evening in those with no clinical features of CS.
Roughly half of patients (n = 649) showed normal cortisol suppression with dexamethasone, identifying them as having nonfunctioning adrenal tumors, and about 35% showed possible MACS based on having moderate levels of excess cortisol.
Nearly 11% (n = 140) showed definitive MACS with more robust cortisol levels, and 5% (n = 65) received a diagnosis of clinically overt CS despite selection criteria meant to exclude people with clinical signs of CS.
There was a clear relationship between patient sex and severity of autonomous cortisol production. Among those with nonfunctioning adrenal tumors, 64% were women, which rose to 74% women in those with definitive MACS and 86% women among those with CS. The median age of participants was 60 years old.
Increasing cortisol levels linked with cardiometabolic disease
Analysis of the prevalence of hypertension and type 2 diabetes after adjustment for age, sex, and body mass index showed that, compared with people with nonfunctioning adrenal tumors, those with definitive MACS had a significant 15% higher rate of hypertension and those with overt CS had a 37% higher rate.
Higher levels of excess cortisol were also directly linked with an increased need for treatment with three or more antihypertensive agents to control blood pressure. Those with definitive MACS had a significant 31% higher rate of being on three or more drugs, and those with overt CS had a greater than twofold higher rate.
People with overt CS also had a significant 62% higher rate of type 2 diabetes, compared with those with a nonfunctioning tumor, but in those with definitive MACS the association was not significant. However, people with definitive MACS or overt CS who had type 2 diabetes and also had significantly increased rates of requiring insulin treatment.
The findings show that “people with definitive MACS carry an increased cardiometabolic burden similar to that seen in CS even if they do not display typical features of clinically overt cortisol excess,” the authors wrote in the report.
Even among those with apparently nonfunctioning tumors, each 10 nmol/L rise in cortisol level during a dexamethasone-suppression test was associated with a higher cardiometabolic disease burden. This observation suggests that current diagnostic cutoffs for the suppression test may miss some people with clinically relevant autonomous cortisol secretion, the report said. The study findings also suggest that people with benign adrenal tumors show a progressive continuum of excess cortisol with clinical consequences that increase as levels increase.
Determine the consequences of cortisol secretion
“These data clearly support the European Society of Endocrinology guideline recommendations that clinicians should determine precisely the cardiometabolic consequences of mild cortisol secretion in patients with adrenal lesions,” André Lacroix, MD, wrote in an accompanying editorial.
But Dr. Lacroix included some caveats. He noted the “potential pitfalls in relying on a single total serum cortisol value after the 1-mg dexamethasone test.” He also wondered whether the analysis used optimal cortisol values to distinguish patient subgroups.
Plus, “even in patients with nonfunctioning adrenal tumors the prevalence of diabetes and hypertension is higher than in the general population, raising concerns about the cardiometabolic consequences of barely detectable cortisol excess,” wrote Dr. Lacroix, an endocrinologist at the CHUM Research Center and professor of medicine at the University of Montreal.
The study received no commercial funding. Dr. Prete, Dr. Chambers, and Dr. Lacroix have reported no relevant financial relationships. Dr. Arlt is listed as an inventor on a patent on the use of steroid profiling as a biomarker tool for the differential diagnosis of adrenal tumors.
A version of this article first appeared on Medscape.com.
FROM ANNALS OF INTERNAL MEDICINE
FDA approves levoketoconazole for Cushing syndrome
The Food and Drug Administration has approved levoketoconazole (Recorlev, Xeris Biopharma) for the treatment of endogenous hypercortisolemia in adults with Cushing syndrome for whom surgery is not possible or was not curative.
Endogenous Cushing syndrome is a relatively rare condition characterized by chronically elevated cortisol levels, typically arising from a benign pituitary tumor. Left untreated, it can lead to reproductive problems and hirsutism in women, as well as serious complications, including diabetes, hypertension, tissue fragility, and mood disorders. Half of patients will die within 5 years if left untreated.
Levoketoconazole inhibits cortisol synthesis. The FDA approval was based on efficacy and safety data from two phase 3 studies involving a total of 166 patients with endogenous Cushing syndrome. In both the open-label, single-arm SONICS study and the randomized, placebo-controlled LOGICS trial, the drug significantly reduced and normalized mean urinary free cortisol levels and improved several secondary endpoints. The ongoing open-label OPTICS study will gather long-term data.
The Recorlev label includes boxed warnings about the potential for life-threatening hepatotoxicity and QT prolongation. Prior to and during treatment, patients should undergo liver enzyme testing, ECG, and correction of hypokalemia and hypomagnesemia.
The most common adverse reactions (occurring in less than 20%) include nausea/vomiting, hypokalemia, hemorrhage/contusion, systemic hypertension, headache, hepatic injury, abnormal uterine bleeding, erythema, fatigue, abdominal pain/dyspepsia, arthritis, upper respiratory infection, myalgia, arrhythmia, back pain, insomnia/sleep disturbances, and peripheral edema.
“Cushing syndrome is a rare disease that can be physically and emotionally devastating to the patient. Most patients endure years of symptoms prior to obtaining a diagnosis and are then faced with limited effective treatment options ... We are excited to see that the long and complicated path of rare drug development has reached FDA approval on a new therapeutic option for our underserved Cushing’s community,” Leslie Edwin, president of the Cushing’s Support & Research Foundation, said in a Xeris statement.
A version of this article first appeared on Medscape.com.
The Food and Drug Administration has approved levoketoconazole (Recorlev, Xeris Biopharma) for the treatment of endogenous hypercortisolemia in adults with Cushing syndrome for whom surgery is not possible or was not curative.
Endogenous Cushing syndrome is a relatively rare condition characterized by chronically elevated cortisol levels, typically arising from a benign pituitary tumor. Left untreated, it can lead to reproductive problems and hirsutism in women, as well as serious complications, including diabetes, hypertension, tissue fragility, and mood disorders. Half of patients will die within 5 years if left untreated.
Levoketoconazole inhibits cortisol synthesis. The FDA approval was based on efficacy and safety data from two phase 3 studies involving a total of 166 patients with endogenous Cushing syndrome. In both the open-label, single-arm SONICS study and the randomized, placebo-controlled LOGICS trial, the drug significantly reduced and normalized mean urinary free cortisol levels and improved several secondary endpoints. The ongoing open-label OPTICS study will gather long-term data.
The Recorlev label includes boxed warnings about the potential for life-threatening hepatotoxicity and QT prolongation. Prior to and during treatment, patients should undergo liver enzyme testing, ECG, and correction of hypokalemia and hypomagnesemia.
The most common adverse reactions (occurring in less than 20%) include nausea/vomiting, hypokalemia, hemorrhage/contusion, systemic hypertension, headache, hepatic injury, abnormal uterine bleeding, erythema, fatigue, abdominal pain/dyspepsia, arthritis, upper respiratory infection, myalgia, arrhythmia, back pain, insomnia/sleep disturbances, and peripheral edema.
“Cushing syndrome is a rare disease that can be physically and emotionally devastating to the patient. Most patients endure years of symptoms prior to obtaining a diagnosis and are then faced with limited effective treatment options ... We are excited to see that the long and complicated path of rare drug development has reached FDA approval on a new therapeutic option for our underserved Cushing’s community,” Leslie Edwin, president of the Cushing’s Support & Research Foundation, said in a Xeris statement.
A version of this article first appeared on Medscape.com.
The Food and Drug Administration has approved levoketoconazole (Recorlev, Xeris Biopharma) for the treatment of endogenous hypercortisolemia in adults with Cushing syndrome for whom surgery is not possible or was not curative.
Endogenous Cushing syndrome is a relatively rare condition characterized by chronically elevated cortisol levels, typically arising from a benign pituitary tumor. Left untreated, it can lead to reproductive problems and hirsutism in women, as well as serious complications, including diabetes, hypertension, tissue fragility, and mood disorders. Half of patients will die within 5 years if left untreated.
Levoketoconazole inhibits cortisol synthesis. The FDA approval was based on efficacy and safety data from two phase 3 studies involving a total of 166 patients with endogenous Cushing syndrome. In both the open-label, single-arm SONICS study and the randomized, placebo-controlled LOGICS trial, the drug significantly reduced and normalized mean urinary free cortisol levels and improved several secondary endpoints. The ongoing open-label OPTICS study will gather long-term data.
The Recorlev label includes boxed warnings about the potential for life-threatening hepatotoxicity and QT prolongation. Prior to and during treatment, patients should undergo liver enzyme testing, ECG, and correction of hypokalemia and hypomagnesemia.
The most common adverse reactions (occurring in less than 20%) include nausea/vomiting, hypokalemia, hemorrhage/contusion, systemic hypertension, headache, hepatic injury, abnormal uterine bleeding, erythema, fatigue, abdominal pain/dyspepsia, arthritis, upper respiratory infection, myalgia, arrhythmia, back pain, insomnia/sleep disturbances, and peripheral edema.
“Cushing syndrome is a rare disease that can be physically and emotionally devastating to the patient. Most patients endure years of symptoms prior to obtaining a diagnosis and are then faced with limited effective treatment options ... We are excited to see that the long and complicated path of rare drug development has reached FDA approval on a new therapeutic option for our underserved Cushing’s community,” Leslie Edwin, president of the Cushing’s Support & Research Foundation, said in a Xeris statement.
A version of this article first appeared on Medscape.com.