Melanoma

Immune checkpoint inhibitors are safe and effective in HIV-infected patients with advanced cancers, according to authors of a recently published systematic review.

The treatment was well tolerated and associated with a 9% rate of grade 3 or higher immune-related adverse events, according to results of the review of 73 patient cases.

There were no adverse impacts on HIV load or CD4 cell count detected in the patients, according to researchers Michael R. Cook, MD, and Chul Kim, MD, MPH, of Georgetown University, Washington.

Antitumor activity of the checkpoint inhibitors in lung cancer patients was comparable to what has been seen in previous randomized clinical trials that excluded HIV-infected individuals, Dr. Cook and Dr. Kim reported in JAMA Oncology.

“Based on the results of the present systematic review, and in the absence of definitive prospective data suggesting an unfavorable risk-to-benefit ratio, immune checkpoint inhibitor therapy may be considered as a viable treatment option for HIV-infected patients with advanced cancer,” they said.

There are preclinical data suggesting that immune checkpoint modulation could improve function of HIV-specific T cells, the investigators added.

“Prospective trials of immune checkpoint inhibitors are necessary to elucidate the antiviral efficacy of immune checkpoint inhibitor therapy in patients with HIV infection and cancer,” they said.

Several such trials are underway to evaluate the role of the pembrolizumab, nivolumab, nivolumab plus ipilimumab, and durvalumab in HIV-infected patients with advanced-stage cancers, according to the review authors.

In the present systematic review, Dr. Cook and Dr. Kim conducted a literature search and reviewed presentations from major annual medical conferences.

Of the 73 HIV-infected patients they identified, most had non–small cell lung cancer (34.2%), melanoma (21.9%), or Kaposi sarcoma (12.3%), while the rest had anal cancer, head and neck cancer, or other malignancies. Most patients had received either nivolumab (39.7%) or pembrolizumab (35.6%).

There were “no concerning findings” among these patients with regard to immune-mediated toxicities or changes in HIV-related parameters.

Six of 70 patients had immune-related adverse events of grade 3 or greater.

Thirty-four patients had documented HIV loads before and after receiving an immune checkpoint inhibitor. Of those, 28 had undetectable HIV loads at baseline, and all but 2 (7%) maintained undetectable loads in the posttreatment evaluation.

Of the remaining six with detectable HIV loads before treatment, five had a decrease in viral load, to the point that four had undetectable HIV viral load in the posttreatment evaluation, the investigators reported.

The overall response rate was 30% for the lung cancer patients, 27% for melanoma, and 63% for Kaposi sarcoma.

In the non–small cell lung cancer subset, response rates were 26% for those who had received previous systemic treatment, and 50% for those who had not, which was similar to findings from major checkpoint inhibitor trials that excluded HIV-infected individuals, the investigators said.

The American Society of Clinical Oncology Conquer Cancer Foundation and Georgetown University supported the study. Dr. Kim reported disclosures related to CARIS Life Science and AstraZeneca.

SOURCE: Cook MR and Kim C. JAMA Oncol. 2019 Feb 7. doi: 10.1001/jamaoncol.2018.6737.

Immune checkpoint inhibitors are safe and effective in HIV-infected patients with advanced cancers, according to authors of a recently published systematic review.

The treatment was well tolerated and associated with a 9% rate of grade 3 or higher immune-related adverse events, according to results of the review of 73 patient cases.

There were no adverse impacts on HIV load or CD4 cell count detected in the patients, according to researchers Michael R. Cook, MD, and Chul Kim, MD, MPH, of Georgetown University, Washington.

Antitumor activity of the checkpoint inhibitors in lung cancer patients was comparable to what has been seen in previous randomized clinical trials that excluded HIV-infected individuals, Dr. Cook and Dr. Kim reported in JAMA Oncology.

“Based on the results of the present systematic review, and in the absence of definitive prospective data suggesting an unfavorable risk-to-benefit ratio, immune checkpoint inhibitor therapy may be considered as a viable treatment option for HIV-infected patients with advanced cancer,” they said.

There are preclinical data suggesting that immune checkpoint modulation could improve function of HIV-specific T cells, the investigators added.

“Prospective trials of immune checkpoint inhibitors are necessary to elucidate the antiviral efficacy of immune checkpoint inhibitor therapy in patients with HIV infection and cancer,” they said.

Several such trials are underway to evaluate the role of the pembrolizumab, nivolumab, nivolumab plus ipilimumab, and durvalumab in HIV-infected patients with advanced-stage cancers, according to the review authors.

In the present systematic review, Dr. Cook and Dr. Kim conducted a literature search and reviewed presentations from major annual medical conferences.

Of the 73 HIV-infected patients they identified, most had non–small cell lung cancer (34.2%), melanoma (21.9%), or Kaposi sarcoma (12.3%), while the rest had anal cancer, head and neck cancer, or other malignancies. Most patients had received either nivolumab (39.7%) or pembrolizumab (35.6%).

There were “no concerning findings” among these patients with regard to immune-mediated toxicities or changes in HIV-related parameters.

Six of 70 patients had immune-related adverse events of grade 3 or greater.

Thirty-four patients had documented HIV loads before and after receiving an immune checkpoint inhibitor. Of those, 28 had undetectable HIV loads at baseline, and all but 2 (7%) maintained undetectable loads in the posttreatment evaluation.

Of the remaining six with detectable HIV loads before treatment, five had a decrease in viral load, to the point that four had undetectable HIV viral load in the posttreatment evaluation, the investigators reported.

The overall response rate was 30% for the lung cancer patients, 27% for melanoma, and 63% for Kaposi sarcoma.

In the non–small cell lung cancer subset, response rates were 26% for those who had received previous systemic treatment, and 50% for those who had not, which was similar to findings from major checkpoint inhibitor trials that excluded HIV-infected individuals, the investigators said.

The American Society of Clinical Oncology Conquer Cancer Foundation and Georgetown University supported the study. Dr. Kim reported disclosures related to CARIS Life Science and AstraZeneca.

SOURCE: Cook MR and Kim C. JAMA Oncol. 2019 Feb 7. doi: 10.1001/jamaoncol.2018.6737.

Immune checkpoint inhibitors are safe and effective in HIV-infected patients with advanced cancers, according to authors of a recently published systematic review.

The treatment was well tolerated and associated with a 9% rate of grade 3 or higher immune-related adverse events, according to results of the review of 73 patient cases.

There were no adverse impacts on HIV load or CD4 cell count detected in the patients, according to researchers Michael R. Cook, MD, and Chul Kim, MD, MPH, of Georgetown University, Washington.

Antitumor activity of the checkpoint inhibitors in lung cancer patients was comparable to what has been seen in previous randomized clinical trials that excluded HIV-infected individuals, Dr. Cook and Dr. Kim reported in JAMA Oncology.

“Based on the results of the present systematic review, and in the absence of definitive prospective data suggesting an unfavorable risk-to-benefit ratio, immune checkpoint inhibitor therapy may be considered as a viable treatment option for HIV-infected patients with advanced cancer,” they said.

There are preclinical data suggesting that immune checkpoint modulation could improve function of HIV-specific T cells, the investigators added.

“Prospective trials of immune checkpoint inhibitors are necessary to elucidate the antiviral efficacy of immune checkpoint inhibitor therapy in patients with HIV infection and cancer,” they said.

Several such trials are underway to evaluate the role of the pembrolizumab, nivolumab, nivolumab plus ipilimumab, and durvalumab in HIV-infected patients with advanced-stage cancers, according to the review authors.

In the present systematic review, Dr. Cook and Dr. Kim conducted a literature search and reviewed presentations from major annual medical conferences.

Of the 73 HIV-infected patients they identified, most had non–small cell lung cancer (34.2%), melanoma (21.9%), or Kaposi sarcoma (12.3%), while the rest had anal cancer, head and neck cancer, or other malignancies. Most patients had received either nivolumab (39.7%) or pembrolizumab (35.6%).

There were “no concerning findings” among these patients with regard to immune-mediated toxicities or changes in HIV-related parameters.

Six of 70 patients had immune-related adverse events of grade 3 or greater.

Thirty-four patients had documented HIV loads before and after receiving an immune checkpoint inhibitor. Of those, 28 had undetectable HIV loads at baseline, and all but 2 (7%) maintained undetectable loads in the posttreatment evaluation.

Of the remaining six with detectable HIV loads before treatment, five had a decrease in viral load, to the point that four had undetectable HIV viral load in the posttreatment evaluation, the investigators reported.

The overall response rate was 30% for the lung cancer patients, 27% for melanoma, and 63% for Kaposi sarcoma.

In the non–small cell lung cancer subset, response rates were 26% for those who had received previous systemic treatment, and 50% for those who had not, which was similar to findings from major checkpoint inhibitor trials that excluded HIV-infected individuals, the investigators said.

The American Society of Clinical Oncology Conquer Cancer Foundation and Georgetown University supported the study. Dr. Kim reported disclosures related to CARIS Life Science and AstraZeneca.

SOURCE: Cook MR and Kim C. JAMA Oncol. 2019 Feb 7. doi: 10.1001/jamaoncol.2018.6737.

WASHINGTON – Unquestionably, immunotherapy is revolutionizing the care of patients with various solid tumors and hematologic malignancies.

Neil Osterweil/MDedge News

But it’s equally true that there’s no such thing as either a free lunch or a cancer therapy free of side effects, whether it’s increased risk for heart failure associated with anthracycline-based chemotherapy, or inflammatory conditions, arrhythmias, and thromboembolic events associated with immune checkpoint inhibitors, said R. Frank Cornell, MD, of Vanderbilt University Medical Center in Nashville, Tenn.

“Early awareness and intervention is critical for improved outcomes, and a multidisciplinary approach between oncology, cardiology, the clinic nurse, and other health care providers is critical in managing these patients with these complicated therapies,” he said at the American College of Cardiology’s Advancing the Cardiovascular Care of the Oncology Patient meeting.
 

Checkpoint inhibitors and the heart

Toxicities associated with immune checkpoint inhibitors such as the programmed death 1/ligand 1 (PD-1/PD-L1) inhibitors nivolumab (Opdivo) and pembrolizumab (Keytruda) and the cytotoxic T-lymphocyte antigen 4 antibody ipilimumab (Yervoy) tend to mimic autoimmune conditions, Dr. Cornell said.

Cardiovascular events associated with these agents, while uncommon, include myocarditis, pericarditis, arrhythmias, impaired ventricular function with heart failure, vasculitis, and venous thromboembolism, he said, citing an American Society of Clinical Oncology (ASCO) clinical practice guideline (J Clin Oncol 2018;36[17]:1714-68).

Dr. Cornell described the case of a 63-year-old woman with disseminated metastatic melanoma who presented to the emergency department 10 days after starting on combination therapy with ipilimumab and nivolumab. She had developed shortness of breath, pleuritic chest pain, and a mild cough for 1 or 2 days.

Her cardiac laboratory markers had been normal at baseline, but were markedly elevated on presentation, and electrocardiograms showed complete heart block and subsequent ventricular tachycardia.

The patient was started on high-dose prednisone, but she died in hospital, and an autopsy showed that the cause of death was infiltration into the myocardium of CD3-positive and CD8-positive T lymphocytes.

“So how do we manage this? This is a good opportunity, I think, for further cardiology and oncology collaboration to develop more robust guidelines for what we can do to best prevent this,” Dr. Cornell said.

Patients started on the ipilimumab/nivolumab combination should be tested weekly for cardiac troponin, creatine kinase (CK) and CK-muscle/brain (CK-MB) weekly for the first 3-4 weeks of therapy. Therapy should be stopped if troponin levels continue to rise, and the patient should be started on high-dose steroids, he said.

The role of other anti-inflammatory agents such as infliximab (Remicade and biosimilars) is unclear and needs further study, he added.

Dr. Cornell cited a 2018 letter to The Lancet by Javid J. Moslehi, MD, and colleagues from Vanderbilt describing an increase in reports of fatal myocarditis among patients treated with checkpoint inhibitors.

“We highlight the high mortality rate with severe immune checkpoint inhibitor–related myocarditis, which is more frequent with combination PD-1 and CTLA-4 blockade, but can also occur with monotherapy. Myocarditis was observed across immune checkpoint inhibitor regimens, although it remains too early to determine whether the incidence differs between use of anti-PD1 and anti-PD-L1 drugs. Furthermore, this condition occurs early on during therapy and across cancer types,” they wrote.

Most of the patients had no preexisting cardiovascular disease, and most were not taking medications for hypertension, cardiovascular disease, or diabetes.
 

CAR-T cells and cardiac disease

The primary cardiac complications associated with CAR-T cell therapy are related to the cytokine release syndrome (CRS), a condition marked by progressive elevation in inflammatory cytokines that in turn leads to marked elevations in C-reactive protein (CRP), interferon gamma, tumor necrosis factor al, and release of pro-inflammatory cytokines including interleukin (IL) 6, IL-10, IL-12, and IL-1 beta.

In rare instances, CRS can lead to disseminated intravascular coagulation (DIC), capillary leak syndrome, and a hemophagocytic lymphohistiocytosis-like (HLH) syndrome, Dr. Cornell said.

Package inserts for the two Food and Drug Administration–approved CAR-T cell products, axicabtagene ciloleucel (Yescarta) and tisagenlecleucel (Kymriah) show that each was associated in clinical trials with a high incidence of CRS.

Among patients treated with axicabtagene ciloleucel, 94% developed CRS, which was grade 3 or greater in severity in 13%. The median time to onset was 2 days, and the median duration was 7 days. Cardiovascular adverse events included grade 3 or greater tachycardia in 2%, arrhythmias in 7%, edema in 1%, dyspnea in 3%, pleural effusion in 2%, hypotension in 15%, hypertension in 6%, and thrombosis in 1%.

Among patients treated with tisagenlecleucel, 79% treated for B-cell acute lymphoblastic leukemia (B-ALL) and 74% treated for diffuse large B cell lymphoma (DLBCL) developed CRS, which was grade 3 or greater in 49% and 23% of patients, respectively. The median time to onset was 3 days, and the median duration of CRS was 8 days.

Cardiovascular adverse events of grade 3 or greater among these patients included tachycardia in 4%, fluid overload in 7%, edema in 1%, dyspnea in 12%, pulmonary edema in 4%, hypotension in 22%, and hypertension in 6%.

Risk factors for CRS include high pre-infusion tumor burden, active infections, and concurrent inflammatory processes, Dr. Cornell said.

Prevention of cardiovascular complications of CAR-T cell therapy requires management of CRS. Patients with grade 2 or greater CRS should receive the anti-IL-6 agent tocilizumab (Actemra) 8 mg/kg intravenously over 1 hour to a maximum dose of 800 mg. Tocilizumab infusions can be repeated every 8 hours as needed if the patient is not responsive to intravenous fluids or increasing supplement oxygen, but should be limited to a maximum of three doses over 24 hours, and a maximum total of four doses.

Patients with grade 3 CRS should also receive intravenous methylprednisolone 1 mg/kg twice daily or the equivalent amount of dexamethasone, with corticosteroids continued until the severity of CRS is grade 1 or less, then tapered over 3 days,

Patients with grade 4 CRS should also receive IV methylprednisolone 1,000 mg per day for 3 days, and if symptoms improve, continue management as per grade 3, Dr. Cornell said.

Dr. Cornell reported having nothing to disclose.

WASHINGTON – Unquestionably, immunotherapy is revolutionizing the care of patients with various solid tumors and hematologic malignancies.

Neil Osterweil/MDedge News

But it’s equally true that there’s no such thing as either a free lunch or a cancer therapy free of side effects, whether it’s increased risk for heart failure associated with anthracycline-based chemotherapy, or inflammatory conditions, arrhythmias, and thromboembolic events associated with immune checkpoint inhibitors, said R. Frank Cornell, MD, of Vanderbilt University Medical Center in Nashville, Tenn.

“Early awareness and intervention is critical for improved outcomes, and a multidisciplinary approach between oncology, cardiology, the clinic nurse, and other health care providers is critical in managing these patients with these complicated therapies,” he said at the American College of Cardiology’s Advancing the Cardiovascular Care of the Oncology Patient meeting.
 

Checkpoint inhibitors and the heart

Toxicities associated with immune checkpoint inhibitors such as the programmed death 1/ligand 1 (PD-1/PD-L1) inhibitors nivolumab (Opdivo) and pembrolizumab (Keytruda) and the cytotoxic T-lymphocyte antigen 4 antibody ipilimumab (Yervoy) tend to mimic autoimmune conditions, Dr. Cornell said.

Cardiovascular events associated with these agents, while uncommon, include myocarditis, pericarditis, arrhythmias, impaired ventricular function with heart failure, vasculitis, and venous thromboembolism, he said, citing an American Society of Clinical Oncology (ASCO) clinical practice guideline (J Clin Oncol 2018;36[17]:1714-68).

Dr. Cornell described the case of a 63-year-old woman with disseminated metastatic melanoma who presented to the emergency department 10 days after starting on combination therapy with ipilimumab and nivolumab. She had developed shortness of breath, pleuritic chest pain, and a mild cough for 1 or 2 days.

Her cardiac laboratory markers had been normal at baseline, but were markedly elevated on presentation, and electrocardiograms showed complete heart block and subsequent ventricular tachycardia.

The patient was started on high-dose prednisone, but she died in hospital, and an autopsy showed that the cause of death was infiltration into the myocardium of CD3-positive and CD8-positive T lymphocytes.

“So how do we manage this? This is a good opportunity, I think, for further cardiology and oncology collaboration to develop more robust guidelines for what we can do to best prevent this,” Dr. Cornell said.

Patients started on the ipilimumab/nivolumab combination should be tested weekly for cardiac troponin, creatine kinase (CK) and CK-muscle/brain (CK-MB) weekly for the first 3-4 weeks of therapy. Therapy should be stopped if troponin levels continue to rise, and the patient should be started on high-dose steroids, he said.

The role of other anti-inflammatory agents such as infliximab (Remicade and biosimilars) is unclear and needs further study, he added.

Dr. Cornell cited a 2018 letter to The Lancet by Javid J. Moslehi, MD, and colleagues from Vanderbilt describing an increase in reports of fatal myocarditis among patients treated with checkpoint inhibitors.

“We highlight the high mortality rate with severe immune checkpoint inhibitor–related myocarditis, which is more frequent with combination PD-1 and CTLA-4 blockade, but can also occur with monotherapy. Myocarditis was observed across immune checkpoint inhibitor regimens, although it remains too early to determine whether the incidence differs between use of anti-PD1 and anti-PD-L1 drugs. Furthermore, this condition occurs early on during therapy and across cancer types,” they wrote.

Most of the patients had no preexisting cardiovascular disease, and most were not taking medications for hypertension, cardiovascular disease, or diabetes.
 

CAR-T cells and cardiac disease

The primary cardiac complications associated with CAR-T cell therapy are related to the cytokine release syndrome (CRS), a condition marked by progressive elevation in inflammatory cytokines that in turn leads to marked elevations in C-reactive protein (CRP), interferon gamma, tumor necrosis factor al, and release of pro-inflammatory cytokines including interleukin (IL) 6, IL-10, IL-12, and IL-1 beta.

In rare instances, CRS can lead to disseminated intravascular coagulation (DIC), capillary leak syndrome, and a hemophagocytic lymphohistiocytosis-like (HLH) syndrome, Dr. Cornell said.

Package inserts for the two Food and Drug Administration–approved CAR-T cell products, axicabtagene ciloleucel (Yescarta) and tisagenlecleucel (Kymriah) show that each was associated in clinical trials with a high incidence of CRS.

Among patients treated with axicabtagene ciloleucel, 94% developed CRS, which was grade 3 or greater in severity in 13%. The median time to onset was 2 days, and the median duration was 7 days. Cardiovascular adverse events included grade 3 or greater tachycardia in 2%, arrhythmias in 7%, edema in 1%, dyspnea in 3%, pleural effusion in 2%, hypotension in 15%, hypertension in 6%, and thrombosis in 1%.

Among patients treated with tisagenlecleucel, 79% treated for B-cell acute lymphoblastic leukemia (B-ALL) and 74% treated for diffuse large B cell lymphoma (DLBCL) developed CRS, which was grade 3 or greater in 49% and 23% of patients, respectively. The median time to onset was 3 days, and the median duration of CRS was 8 days.

Cardiovascular adverse events of grade 3 or greater among these patients included tachycardia in 4%, fluid overload in 7%, edema in 1%, dyspnea in 12%, pulmonary edema in 4%, hypotension in 22%, and hypertension in 6%.

Risk factors for CRS include high pre-infusion tumor burden, active infections, and concurrent inflammatory processes, Dr. Cornell said.

Prevention of cardiovascular complications of CAR-T cell therapy requires management of CRS. Patients with grade 2 or greater CRS should receive the anti-IL-6 agent tocilizumab (Actemra) 8 mg/kg intravenously over 1 hour to a maximum dose of 800 mg. Tocilizumab infusions can be repeated every 8 hours as needed if the patient is not responsive to intravenous fluids or increasing supplement oxygen, but should be limited to a maximum of three doses over 24 hours, and a maximum total of four doses.

Patients with grade 3 CRS should also receive intravenous methylprednisolone 1 mg/kg twice daily or the equivalent amount of dexamethasone, with corticosteroids continued until the severity of CRS is grade 1 or less, then tapered over 3 days,

Patients with grade 4 CRS should also receive IV methylprednisolone 1,000 mg per day for 3 days, and if symptoms improve, continue management as per grade 3, Dr. Cornell said.

Dr. Cornell reported having nothing to disclose.

WASHINGTON – Unquestionably, immunotherapy is revolutionizing the care of patients with various solid tumors and hematologic malignancies.

Neil Osterweil/MDedge News

But it’s equally true that there’s no such thing as either a free lunch or a cancer therapy free of side effects, whether it’s increased risk for heart failure associated with anthracycline-based chemotherapy, or inflammatory conditions, arrhythmias, and thromboembolic events associated with immune checkpoint inhibitors, said R. Frank Cornell, MD, of Vanderbilt University Medical Center in Nashville, Tenn.

“Early awareness and intervention is critical for improved outcomes, and a multidisciplinary approach between oncology, cardiology, the clinic nurse, and other health care providers is critical in managing these patients with these complicated therapies,” he said at the American College of Cardiology’s Advancing the Cardiovascular Care of the Oncology Patient meeting.
 

Checkpoint inhibitors and the heart

Toxicities associated with immune checkpoint inhibitors such as the programmed death 1/ligand 1 (PD-1/PD-L1) inhibitors nivolumab (Opdivo) and pembrolizumab (Keytruda) and the cytotoxic T-lymphocyte antigen 4 antibody ipilimumab (Yervoy) tend to mimic autoimmune conditions, Dr. Cornell said.

Cardiovascular events associated with these agents, while uncommon, include myocarditis, pericarditis, arrhythmias, impaired ventricular function with heart failure, vasculitis, and venous thromboembolism, he said, citing an American Society of Clinical Oncology (ASCO) clinical practice guideline (J Clin Oncol 2018;36[17]:1714-68).

Dr. Cornell described the case of a 63-year-old woman with disseminated metastatic melanoma who presented to the emergency department 10 days after starting on combination therapy with ipilimumab and nivolumab. She had developed shortness of breath, pleuritic chest pain, and a mild cough for 1 or 2 days.

Her cardiac laboratory markers had been normal at baseline, but were markedly elevated on presentation, and electrocardiograms showed complete heart block and subsequent ventricular tachycardia.

The patient was started on high-dose prednisone, but she died in hospital, and an autopsy showed that the cause of death was infiltration into the myocardium of CD3-positive and CD8-positive T lymphocytes.

“So how do we manage this? This is a good opportunity, I think, for further cardiology and oncology collaboration to develop more robust guidelines for what we can do to best prevent this,” Dr. Cornell said.

Patients started on the ipilimumab/nivolumab combination should be tested weekly for cardiac troponin, creatine kinase (CK) and CK-muscle/brain (CK-MB) weekly for the first 3-4 weeks of therapy. Therapy should be stopped if troponin levels continue to rise, and the patient should be started on high-dose steroids, he said.

The role of other anti-inflammatory agents such as infliximab (Remicade and biosimilars) is unclear and needs further study, he added.

Dr. Cornell cited a 2018 letter to The Lancet by Javid J. Moslehi, MD, and colleagues from Vanderbilt describing an increase in reports of fatal myocarditis among patients treated with checkpoint inhibitors.

“We highlight the high mortality rate with severe immune checkpoint inhibitor–related myocarditis, which is more frequent with combination PD-1 and CTLA-4 blockade, but can also occur with monotherapy. Myocarditis was observed across immune checkpoint inhibitor regimens, although it remains too early to determine whether the incidence differs between use of anti-PD1 and anti-PD-L1 drugs. Furthermore, this condition occurs early on during therapy and across cancer types,” they wrote.

Most of the patients had no preexisting cardiovascular disease, and most were not taking medications for hypertension, cardiovascular disease, or diabetes.
 

CAR-T cells and cardiac disease

The primary cardiac complications associated with CAR-T cell therapy are related to the cytokine release syndrome (CRS), a condition marked by progressive elevation in inflammatory cytokines that in turn leads to marked elevations in C-reactive protein (CRP), interferon gamma, tumor necrosis factor al, and release of pro-inflammatory cytokines including interleukin (IL) 6, IL-10, IL-12, and IL-1 beta.

In rare instances, CRS can lead to disseminated intravascular coagulation (DIC), capillary leak syndrome, and a hemophagocytic lymphohistiocytosis-like (HLH) syndrome, Dr. Cornell said.

Package inserts for the two Food and Drug Administration–approved CAR-T cell products, axicabtagene ciloleucel (Yescarta) and tisagenlecleucel (Kymriah) show that each was associated in clinical trials with a high incidence of CRS.

Among patients treated with axicabtagene ciloleucel, 94% developed CRS, which was grade 3 or greater in severity in 13%. The median time to onset was 2 days, and the median duration was 7 days. Cardiovascular adverse events included grade 3 or greater tachycardia in 2%, arrhythmias in 7%, edema in 1%, dyspnea in 3%, pleural effusion in 2%, hypotension in 15%, hypertension in 6%, and thrombosis in 1%.

Among patients treated with tisagenlecleucel, 79% treated for B-cell acute lymphoblastic leukemia (B-ALL) and 74% treated for diffuse large B cell lymphoma (DLBCL) developed CRS, which was grade 3 or greater in 49% and 23% of patients, respectively. The median time to onset was 3 days, and the median duration of CRS was 8 days.

Cardiovascular adverse events of grade 3 or greater among these patients included tachycardia in 4%, fluid overload in 7%, edema in 1%, dyspnea in 12%, pulmonary edema in 4%, hypotension in 22%, and hypertension in 6%.

Risk factors for CRS include high pre-infusion tumor burden, active infections, and concurrent inflammatory processes, Dr. Cornell said.

Prevention of cardiovascular complications of CAR-T cell therapy requires management of CRS. Patients with grade 2 or greater CRS should receive the anti-IL-6 agent tocilizumab (Actemra) 8 mg/kg intravenously over 1 hour to a maximum dose of 800 mg. Tocilizumab infusions can be repeated every 8 hours as needed if the patient is not responsive to intravenous fluids or increasing supplement oxygen, but should be limited to a maximum of three doses over 24 hours, and a maximum total of four doses.

Patients with grade 3 CRS should also receive intravenous methylprednisolone 1 mg/kg twice daily or the equivalent amount of dexamethasone, with corticosteroids continued until the severity of CRS is grade 1 or less, then tapered over 3 days,

Patients with grade 4 CRS should also receive IV methylprednisolone 1,000 mg per day for 3 days, and if symptoms improve, continue management as per grade 3, Dr. Cornell said.

Dr. Cornell reported having nothing to disclose.

WASHINGTON – The personalized NEO-PV-1 neoantigen vaccine plus poly-ICLC adjuvant in combination with the checkpoint inhibitor nivolumab is well tolerated and shows clinical activity, according to findings from the ongoing phase 1b NT-001study of patients with metastatic melanoma, smoking-associated non–small cell lung cancer (NSCLC), and bladder cancer.

No vaccine-related serious adverse events occurred in 34 patients in a per-protocol set who were treated with the regimen, Siwen Hu-Lieskovan, MD, PhD, reported at the annual meeting of the Society for Immunotherapy of Cancer.

“We found that NEO-PV-01 in combination with nivolumab was very safe; we did not see any grade 3 to grade 4 toxicity associated with the combination,” said Dr. Hu-Lieskovan, a medical oncologist at the University of California, Los Angeles.

Most adverse events that occurred were mild and related to the local injection, she noted.

Although safety was the primary endpoint of the study, Dr. Hu-Lieskovan and her colleagues also looked at immune responses and treatment efficacy, however, with respect to translational data her presentation addressed only the findings in the melanoma and lung cancer patients.

All patients exhibited an immune response to the vaccine, with 56% of the epitopes generating CD4- and/or CD8-positive T cell responses.

“These immune responses were very durable and still could be detected 52 weeks into the treatment,” she said. Additionally, epitope spreading – increased immune response targeting nonvaccine epitopes (which is indirect evidence of vaccine-induced tumor toxicity) – was observed in 8 of 10 patients tested.

The study subjects, including 16 adults with melanoma, 11 with NSCLC, and 7 with bladder cancer, were treated with nivolumab every 2 weeks for 12 weeks prior to vaccination (while their personalized vaccine was being developed). NEO-PV-01 – which included up to 20 unique peptides plus the immunostimulant poly-ICLC – was then administered subcutaneously in five priming doses followed by two booster doses over the next 12 weeks. Of note, very few patients had programmed cell death protein 1 expression of 50% or greater, including only 13.3%, 28.6%, and 0% of the melanoma, NSCLC, and bladder cancer patients, respectively, and tumor mutation burden was consistent with published reports, she said.

As for efficacy, 11 of 16 melanoma patients (68.6%) had either a partial response (8 pre vaccination and an additional 3 post vaccination) or stable disease. One (6.3%) had a postvaccination complete response, Dr. Hu-Lieskovan said.

“[This is] much better than the historical data,” she noted, adding that 12 patients (75%) are still on the study and continuing treatment with response duration of at least 39.7 weeks.

Of the 11 NSCLC patients, 5 (45.5%) had a partial response (3 pre vaccination and 2 post vaccination), and none had a complete response. Seven (63.6%) remained on the study and were continuing treatment, and response duration was at least 30.6 weeks.

An exploratory analysis of tumor responses after vaccination showed that the majority of melanoma patients and half of the lung cancer patients had further tumor shrinkage after vaccination, and some patients were converted to responders. Most – including some with stable or progressive disease – stayed on treatment, she said.

The findings demonstrate that NEO-PV-01 is very well tolerated and associated with post vaccine responses observed after week 24.

“We saw evidence of vaccination-induced immune response specific to the injected vaccine, as well as epitope spreading, and the T cells induced by these neoantigens can traffic into the tumor and they seem to be functional,” she concluded.

Dr. Hu-Lieskovan reported receiving consulting fees and/or research support from Amgen, BMS, Genmab, Merck, and Vaccinex. She is the UCLA site principal investigator for the NT-001 study and has conducted contracted research for Astellas, F Star, Genentech, Nektar Therapeutics, Neon Therapeutics, Pfizer, Plexxikon, and Xencor.

SOURCE: Hu-Lieskovan S et al. SITC 2018, Abstract 07.

WASHINGTON – The personalized NEO-PV-1 neoantigen vaccine plus poly-ICLC adjuvant in combination with the checkpoint inhibitor nivolumab is well tolerated and shows clinical activity, according to findings from the ongoing phase 1b NT-001study of patients with metastatic melanoma, smoking-associated non–small cell lung cancer (NSCLC), and bladder cancer.

No vaccine-related serious adverse events occurred in 34 patients in a per-protocol set who were treated with the regimen, Siwen Hu-Lieskovan, MD, PhD, reported at the annual meeting of the Society for Immunotherapy of Cancer.

“We found that NEO-PV-01 in combination with nivolumab was very safe; we did not see any grade 3 to grade 4 toxicity associated with the combination,” said Dr. Hu-Lieskovan, a medical oncologist at the University of California, Los Angeles.

Most adverse events that occurred were mild and related to the local injection, she noted.

Although safety was the primary endpoint of the study, Dr. Hu-Lieskovan and her colleagues also looked at immune responses and treatment efficacy, however, with respect to translational data her presentation addressed only the findings in the melanoma and lung cancer patients.

All patients exhibited an immune response to the vaccine, with 56% of the epitopes generating CD4- and/or CD8-positive T cell responses.

“These immune responses were very durable and still could be detected 52 weeks into the treatment,” she said. Additionally, epitope spreading – increased immune response targeting nonvaccine epitopes (which is indirect evidence of vaccine-induced tumor toxicity) – was observed in 8 of 10 patients tested.

The study subjects, including 16 adults with melanoma, 11 with NSCLC, and 7 with bladder cancer, were treated with nivolumab every 2 weeks for 12 weeks prior to vaccination (while their personalized vaccine was being developed). NEO-PV-01 – which included up to 20 unique peptides plus the immunostimulant poly-ICLC – was then administered subcutaneously in five priming doses followed by two booster doses over the next 12 weeks. Of note, very few patients had programmed cell death protein 1 expression of 50% or greater, including only 13.3%, 28.6%, and 0% of the melanoma, NSCLC, and bladder cancer patients, respectively, and tumor mutation burden was consistent with published reports, she said.

As for efficacy, 11 of 16 melanoma patients (68.6%) had either a partial response (8 pre vaccination and an additional 3 post vaccination) or stable disease. One (6.3%) had a postvaccination complete response, Dr. Hu-Lieskovan said.

“[This is] much better than the historical data,” she noted, adding that 12 patients (75%) are still on the study and continuing treatment with response duration of at least 39.7 weeks.

Of the 11 NSCLC patients, 5 (45.5%) had a partial response (3 pre vaccination and 2 post vaccination), and none had a complete response. Seven (63.6%) remained on the study and were continuing treatment, and response duration was at least 30.6 weeks.

An exploratory analysis of tumor responses after vaccination showed that the majority of melanoma patients and half of the lung cancer patients had further tumor shrinkage after vaccination, and some patients were converted to responders. Most – including some with stable or progressive disease – stayed on treatment, she said.

The findings demonstrate that NEO-PV-01 is very well tolerated and associated with post vaccine responses observed after week 24.

“We saw evidence of vaccination-induced immune response specific to the injected vaccine, as well as epitope spreading, and the T cells induced by these neoantigens can traffic into the tumor and they seem to be functional,” she concluded.

Dr. Hu-Lieskovan reported receiving consulting fees and/or research support from Amgen, BMS, Genmab, Merck, and Vaccinex. She is the UCLA site principal investigator for the NT-001 study and has conducted contracted research for Astellas, F Star, Genentech, Nektar Therapeutics, Neon Therapeutics, Pfizer, Plexxikon, and Xencor.

SOURCE: Hu-Lieskovan S et al. SITC 2018, Abstract 07.

WASHINGTON – The personalized NEO-PV-1 neoantigen vaccine plus poly-ICLC adjuvant in combination with the checkpoint inhibitor nivolumab is well tolerated and shows clinical activity, according to findings from the ongoing phase 1b NT-001study of patients with metastatic melanoma, smoking-associated non–small cell lung cancer (NSCLC), and bladder cancer.

No vaccine-related serious adverse events occurred in 34 patients in a per-protocol set who were treated with the regimen, Siwen Hu-Lieskovan, MD, PhD, reported at the annual meeting of the Society for Immunotherapy of Cancer.

“We found that NEO-PV-01 in combination with nivolumab was very safe; we did not see any grade 3 to grade 4 toxicity associated with the combination,” said Dr. Hu-Lieskovan, a medical oncologist at the University of California, Los Angeles.

Most adverse events that occurred were mild and related to the local injection, she noted.

Although safety was the primary endpoint of the study, Dr. Hu-Lieskovan and her colleagues also looked at immune responses and treatment efficacy, however, with respect to translational data her presentation addressed only the findings in the melanoma and lung cancer patients.

All patients exhibited an immune response to the vaccine, with 56% of the epitopes generating CD4- and/or CD8-positive T cell responses.

“These immune responses were very durable and still could be detected 52 weeks into the treatment,” she said. Additionally, epitope spreading – increased immune response targeting nonvaccine epitopes (which is indirect evidence of vaccine-induced tumor toxicity) – was observed in 8 of 10 patients tested.

The study subjects, including 16 adults with melanoma, 11 with NSCLC, and 7 with bladder cancer, were treated with nivolumab every 2 weeks for 12 weeks prior to vaccination (while their personalized vaccine was being developed). NEO-PV-01 – which included up to 20 unique peptides plus the immunostimulant poly-ICLC – was then administered subcutaneously in five priming doses followed by two booster doses over the next 12 weeks. Of note, very few patients had programmed cell death protein 1 expression of 50% or greater, including only 13.3%, 28.6%, and 0% of the melanoma, NSCLC, and bladder cancer patients, respectively, and tumor mutation burden was consistent with published reports, she said.

As for efficacy, 11 of 16 melanoma patients (68.6%) had either a partial response (8 pre vaccination and an additional 3 post vaccination) or stable disease. One (6.3%) had a postvaccination complete response, Dr. Hu-Lieskovan said.

“[This is] much better than the historical data,” she noted, adding that 12 patients (75%) are still on the study and continuing treatment with response duration of at least 39.7 weeks.

Of the 11 NSCLC patients, 5 (45.5%) had a partial response (3 pre vaccination and 2 post vaccination), and none had a complete response. Seven (63.6%) remained on the study and were continuing treatment, and response duration was at least 30.6 weeks.

An exploratory analysis of tumor responses after vaccination showed that the majority of melanoma patients and half of the lung cancer patients had further tumor shrinkage after vaccination, and some patients were converted to responders. Most – including some with stable or progressive disease – stayed on treatment, she said.

The findings demonstrate that NEO-PV-01 is very well tolerated and associated with post vaccine responses observed after week 24.

“We saw evidence of vaccination-induced immune response specific to the injected vaccine, as well as epitope spreading, and the T cells induced by these neoantigens can traffic into the tumor and they seem to be functional,” she concluded.

Dr. Hu-Lieskovan reported receiving consulting fees and/or research support from Amgen, BMS, Genmab, Merck, and Vaccinex. She is the UCLA site principal investigator for the NT-001 study and has conducted contracted research for Astellas, F Star, Genentech, Nektar Therapeutics, Neon Therapeutics, Pfizer, Plexxikon, and Xencor.

SOURCE: Hu-Lieskovan S et al. SITC 2018, Abstract 07.

Suicide risk significantly increases within the first year of a cancer diagnosis, with risk varying by type of cancer, according to investigators who conducted a retrospective analysis representing nearly 4.7 million patients.

Risk of suicide in that first year after diagnosis was especially high in pancreatic and lung cancers, while by contrast, breast and prostate cancer did not increase suicide risk, reported the researchers, led by Hesham Hamoda, MD, MPH, of Boston Children’s Hospital/Harvard Medical School, and Ahmad Alfaar, MBBCh, MSc, of Charité–Universitätsmedizin Berlin.

That variation in suicide risk by cancer type suggests that prognosis and 5-year relative survival play a role in increasing suicide rates, according to Dr. Hamoda, Dr. Alfaar, and their coauthors.

“After the diagnosis, it is important that health care providers be vigilant in screening for suicide and ensuring that patients have access to social and emotional support,” they wrote in a report published in Cancer. Their analysis was based on 4,671,989 patients with a diagnosis of cancer in the Surveillance, Epidemiology, and End Results (SEER) database between 2000 and 2014. Out of 1,005,825 of those patients who died within the first year of diagnosis, the cause of death was suicide for 1,585, or 0.16%.

Overall, the risk of suicide increased significantly among cancer patients versus the general population, with an observed-to-expected (O/E) ratio of 2.51 per 10,000 person-years, the investigators found. The risk was highest in the first 6 months, with an O/E mortality of 3.13 versus 1.8 in the latter 6 months.

The highest ratios were seen for pancreatic cancer, with an O/E ratio of 8.01, and lung cancer, with a ratio of 6.05, the researchers found in further analysis.

Significant increases in suicide risk were also seen for colorectal cancer (2.08) and melanoma (1.45), though rates were not significantly different versus the general population for breast (1.23) and prostate (0.99), according to the reported data.

Suicide risk was relatively high for any cancer with distant metastases (5.63), though still significantly higher at 1.65 in persons with localized/regional disease, the data show.

The increased suicide risk persisted more than 1 year after the cancer diagnosis, though not to the degree observed within that first year, they added.

Most patients with suicide as a cause of death were white (90.2%) and male (87%). Nearly 60% were between the ages of 65 and 84 at the time of suicide.

Social support plays an integral role in suicide prevention among cancer patients, the researchers noted.

Previous studies suggest that support programs may decrease suicide risk by making patients better aware of their prognosis, receptive to decreased social stigma, or less likely to have stress related to cost of care, they said.

“Discussing the quality of life after diagnosis, the effectiveness of therapy, and the prognosis of the disease and maintaining a trusting relationship with health care professionals all decrease the likelihood of suicide immediately after a diagnosis of cancer,” they said.

Dr. Hamoda, Dr. Alfaar, and their coauthors reported no conflicts of interest. Funding for the study came in part from the German Academic Exchange Service (Dr. Alfaar).

SOURCE: Saad AM, et al. Cancer 2019 Jan 7. doi: 10.1002/cncr.31876.

Suicide risk significantly increases within the first year of a cancer diagnosis, with risk varying by type of cancer, according to investigators who conducted a retrospective analysis representing nearly 4.7 million patients.

Risk of suicide in that first year after diagnosis was especially high in pancreatic and lung cancers, while by contrast, breast and prostate cancer did not increase suicide risk, reported the researchers, led by Hesham Hamoda, MD, MPH, of Boston Children’s Hospital/Harvard Medical School, and Ahmad Alfaar, MBBCh, MSc, of Charité–Universitätsmedizin Berlin.

That variation in suicide risk by cancer type suggests that prognosis and 5-year relative survival play a role in increasing suicide rates, according to Dr. Hamoda, Dr. Alfaar, and their coauthors.

“After the diagnosis, it is important that health care providers be vigilant in screening for suicide and ensuring that patients have access to social and emotional support,” they wrote in a report published in Cancer. Their analysis was based on 4,671,989 patients with a diagnosis of cancer in the Surveillance, Epidemiology, and End Results (SEER) database between 2000 and 2014. Out of 1,005,825 of those patients who died within the first year of diagnosis, the cause of death was suicide for 1,585, or 0.16%.

Overall, the risk of suicide increased significantly among cancer patients versus the general population, with an observed-to-expected (O/E) ratio of 2.51 per 10,000 person-years, the investigators found. The risk was highest in the first 6 months, with an O/E mortality of 3.13 versus 1.8 in the latter 6 months.

The highest ratios were seen for pancreatic cancer, with an O/E ratio of 8.01, and lung cancer, with a ratio of 6.05, the researchers found in further analysis.

Significant increases in suicide risk were also seen for colorectal cancer (2.08) and melanoma (1.45), though rates were not significantly different versus the general population for breast (1.23) and prostate (0.99), according to the reported data.

Suicide risk was relatively high for any cancer with distant metastases (5.63), though still significantly higher at 1.65 in persons with localized/regional disease, the data show.

The increased suicide risk persisted more than 1 year after the cancer diagnosis, though not to the degree observed within that first year, they added.

Most patients with suicide as a cause of death were white (90.2%) and male (87%). Nearly 60% were between the ages of 65 and 84 at the time of suicide.

Social support plays an integral role in suicide prevention among cancer patients, the researchers noted.

Previous studies suggest that support programs may decrease suicide risk by making patients better aware of their prognosis, receptive to decreased social stigma, or less likely to have stress related to cost of care, they said.

“Discussing the quality of life after diagnosis, the effectiveness of therapy, and the prognosis of the disease and maintaining a trusting relationship with health care professionals all decrease the likelihood of suicide immediately after a diagnosis of cancer,” they said.

Dr. Hamoda, Dr. Alfaar, and their coauthors reported no conflicts of interest. Funding for the study came in part from the German Academic Exchange Service (Dr. Alfaar).

SOURCE: Saad AM, et al. Cancer 2019 Jan 7. doi: 10.1002/cncr.31876.

Suicide risk significantly increases within the first year of a cancer diagnosis, with risk varying by type of cancer, according to investigators who conducted a retrospective analysis representing nearly 4.7 million patients.

Risk of suicide in that first year after diagnosis was especially high in pancreatic and lung cancers, while by contrast, breast and prostate cancer did not increase suicide risk, reported the researchers, led by Hesham Hamoda, MD, MPH, of Boston Children’s Hospital/Harvard Medical School, and Ahmad Alfaar, MBBCh, MSc, of Charité–Universitätsmedizin Berlin.

That variation in suicide risk by cancer type suggests that prognosis and 5-year relative survival play a role in increasing suicide rates, according to Dr. Hamoda, Dr. Alfaar, and their coauthors.

“After the diagnosis, it is important that health care providers be vigilant in screening for suicide and ensuring that patients have access to social and emotional support,” they wrote in a report published in Cancer. Their analysis was based on 4,671,989 patients with a diagnosis of cancer in the Surveillance, Epidemiology, and End Results (SEER) database between 2000 and 2014. Out of 1,005,825 of those patients who died within the first year of diagnosis, the cause of death was suicide for 1,585, or 0.16%.

Overall, the risk of suicide increased significantly among cancer patients versus the general population, with an observed-to-expected (O/E) ratio of 2.51 per 10,000 person-years, the investigators found. The risk was highest in the first 6 months, with an O/E mortality of 3.13 versus 1.8 in the latter 6 months.

The highest ratios were seen for pancreatic cancer, with an O/E ratio of 8.01, and lung cancer, with a ratio of 6.05, the researchers found in further analysis.

Significant increases in suicide risk were also seen for colorectal cancer (2.08) and melanoma (1.45), though rates were not significantly different versus the general population for breast (1.23) and prostate (0.99), according to the reported data.

Suicide risk was relatively high for any cancer with distant metastases (5.63), though still significantly higher at 1.65 in persons with localized/regional disease, the data show.

The increased suicide risk persisted more than 1 year after the cancer diagnosis, though not to the degree observed within that first year, they added.

Most patients with suicide as a cause of death were white (90.2%) and male (87%). Nearly 60% were between the ages of 65 and 84 at the time of suicide.

Social support plays an integral role in suicide prevention among cancer patients, the researchers noted.

Previous studies suggest that support programs may decrease suicide risk by making patients better aware of their prognosis, receptive to decreased social stigma, or less likely to have stress related to cost of care, they said.

“Discussing the quality of life after diagnosis, the effectiveness of therapy, and the prognosis of the disease and maintaining a trusting relationship with health care professionals all decrease the likelihood of suicide immediately after a diagnosis of cancer,” they said.

Dr. Hamoda, Dr. Alfaar, and their coauthors reported no conflicts of interest. Funding for the study came in part from the German Academic Exchange Service (Dr. Alfaar).

SOURCE: Saad AM, et al. Cancer 2019 Jan 7. doi: 10.1002/cncr.31876.

The Food and Drug Administration has granted accelerated approval for pembrolizumab (Keytruda) for the treatment of pediatric and adult Merkel cell carcinoma, specifically for recurrent locally advanced or metastatic disease.

Because it is an accelerated approval, “continued approval for this indication may be contingent upon verification and description of clinical benefit in the confirmatory trials,” according to the FDA press release announcing the approval.

Pembrolizumab is a programmed death receptor-1 (PD-1)-blocking antibody that was previously approved for treatment of unresectable or metastatic melanoma.

More about the latest approval, as well as full prescribing information, can be found on the FDA’s website.

cpalmer@mdedge.com

The Food and Drug Administration has granted accelerated approval for pembrolizumab (Keytruda) for the treatment of pediatric and adult Merkel cell carcinoma, specifically for recurrent locally advanced or metastatic disease.

Because it is an accelerated approval, “continued approval for this indication may be contingent upon verification and description of clinical benefit in the confirmatory trials,” according to the FDA press release announcing the approval.

Pembrolizumab is a programmed death receptor-1 (PD-1)-blocking antibody that was previously approved for treatment of unresectable or metastatic melanoma.

More about the latest approval, as well as full prescribing information, can be found on the FDA’s website.

cpalmer@mdedge.com

The Food and Drug Administration has granted accelerated approval for pembrolizumab (Keytruda) for the treatment of pediatric and adult Merkel cell carcinoma, specifically for recurrent locally advanced or metastatic disease.

Because it is an accelerated approval, “continued approval for this indication may be contingent upon verification and description of clinical benefit in the confirmatory trials,” according to the FDA press release announcing the approval.

Pembrolizumab is a programmed death receptor-1 (PD-1)-blocking antibody that was previously approved for treatment of unresectable or metastatic melanoma.

More about the latest approval, as well as full prescribing information, can be found on the FDA’s website.

cpalmer@mdedge.com

Severe sleep-disordered breathing was significantly associated with more aggressive skin cancer in a study of 443 adults.

Dlumen/Thinkstock

Sleep-disordered breathing (SDB) has been associated with increased cancer risk and mortality, but no large studies have examined the association in specific cancers, wrote Miguel Angel Martinez-Garcia, MD, of La Fe University and Polytechnic Hospital, Valencia, Spain, and his colleagues.

The researchers conducted a sleep study of 443 adults with melanoma within 6 months of their diagnoses. The findings were published in the journal CHEST®. Overall, patients with more severe sleep apnea were nearly twice as likely to have aggressive type melanoma, compared with those with less severe sleep apnea.

Sleep apnea was defined via the Apnea Hypopnea Index (AHI) and the desaturation indices (DI). Aggressive melanoma was defined as a Breslow index greater than 1 mm, compared with 1 mm or less.

Patients with AHI greater than 15.6 events per hour or in the DI4% tertile (more than 9.3 desaturations per hour) were approximately twice as likely (1.94 and 1.93 times, respectively) to have a more aggressive melanoma as were those with less severe sleep apnea, after adjustment for age, gender, body mass index, and melanoma location.

The average age of the patients was 60 years, 51% were male, and the average time between the melanoma diagnosis and the sleep study was 82 days. Sleep symptoms were not significantly different between the patients with aggressive or less aggressive melanoma. However, in addition to more severe sleep apnea, those with aggressive melanoma were significantly more likely to be older, male, and have a higher BMI than were those with less aggressive disease.

“Among the most salient findings were the dependence of the association between SDB and the markers of melanoma aggressiveness on both age and the actual indicators of tumor aggressiveness,” the researchers noted. The association was significant in patients younger than 55 years only if their Breslow index was greater than 2 mm, the researchers said.

The study findings were limited by the absence of full overnight polysomnography to assess SDB because not all participating centers had access to that option, the researchers noted. However, the results support an independent link between sleep apnea and common measures of aggressive melanoma, especially in younger patients, they said. “Future prospective studies are needed to confirm whether the presence and treatment of SDB and its evolution over time are also associated with poor melanoma outcomes, including death, the pathophysiological mechanisms underlying this association,” they added.

The study was supported in part by Fondo de Investigation Sanitaria, SEPAR, Red Respira, and Sociedad Valenciana de Neumología. The researchers had no financial conflicts to disclose

SOURCE: Martinez-Garcia M et al. CHEST. 2018; doi: 10.1016/j.chest.2018.07.015.

Severe sleep-disordered breathing was significantly associated with more aggressive skin cancer in a study of 443 adults.

Dlumen/Thinkstock

Sleep-disordered breathing (SDB) has been associated with increased cancer risk and mortality, but no large studies have examined the association in specific cancers, wrote Miguel Angel Martinez-Garcia, MD, of La Fe University and Polytechnic Hospital, Valencia, Spain, and his colleagues.

The researchers conducted a sleep study of 443 adults with melanoma within 6 months of their diagnoses. The findings were published in the journal CHEST®. Overall, patients with more severe sleep apnea were nearly twice as likely to have aggressive type melanoma, compared with those with less severe sleep apnea.

Sleep apnea was defined via the Apnea Hypopnea Index (AHI) and the desaturation indices (DI). Aggressive melanoma was defined as a Breslow index greater than 1 mm, compared with 1 mm or less.

Patients with AHI greater than 15.6 events per hour or in the DI4% tertile (more than 9.3 desaturations per hour) were approximately twice as likely (1.94 and 1.93 times, respectively) to have a more aggressive melanoma as were those with less severe sleep apnea, after adjustment for age, gender, body mass index, and melanoma location.

The average age of the patients was 60 years, 51% were male, and the average time between the melanoma diagnosis and the sleep study was 82 days. Sleep symptoms were not significantly different between the patients with aggressive or less aggressive melanoma. However, in addition to more severe sleep apnea, those with aggressive melanoma were significantly more likely to be older, male, and have a higher BMI than were those with less aggressive disease.

“Among the most salient findings were the dependence of the association between SDB and the markers of melanoma aggressiveness on both age and the actual indicators of tumor aggressiveness,” the researchers noted. The association was significant in patients younger than 55 years only if their Breslow index was greater than 2 mm, the researchers said.

The study findings were limited by the absence of full overnight polysomnography to assess SDB because not all participating centers had access to that option, the researchers noted. However, the results support an independent link between sleep apnea and common measures of aggressive melanoma, especially in younger patients, they said. “Future prospective studies are needed to confirm whether the presence and treatment of SDB and its evolution over time are also associated with poor melanoma outcomes, including death, the pathophysiological mechanisms underlying this association,” they added.

The study was supported in part by Fondo de Investigation Sanitaria, SEPAR, Red Respira, and Sociedad Valenciana de Neumología. The researchers had no financial conflicts to disclose

SOURCE: Martinez-Garcia M et al. CHEST. 2018; doi: 10.1016/j.chest.2018.07.015.

Severe sleep-disordered breathing was significantly associated with more aggressive skin cancer in a study of 443 adults.

Dlumen/Thinkstock

Sleep-disordered breathing (SDB) has been associated with increased cancer risk and mortality, but no large studies have examined the association in specific cancers, wrote Miguel Angel Martinez-Garcia, MD, of La Fe University and Polytechnic Hospital, Valencia, Spain, and his colleagues.

The researchers conducted a sleep study of 443 adults with melanoma within 6 months of their diagnoses. The findings were published in the journal CHEST®. Overall, patients with more severe sleep apnea were nearly twice as likely to have aggressive type melanoma, compared with those with less severe sleep apnea.

Sleep apnea was defined via the Apnea Hypopnea Index (AHI) and the desaturation indices (DI). Aggressive melanoma was defined as a Breslow index greater than 1 mm, compared with 1 mm or less.

Patients with AHI greater than 15.6 events per hour or in the DI4% tertile (more than 9.3 desaturations per hour) were approximately twice as likely (1.94 and 1.93 times, respectively) to have a more aggressive melanoma as were those with less severe sleep apnea, after adjustment for age, gender, body mass index, and melanoma location.

The average age of the patients was 60 years, 51% were male, and the average time between the melanoma diagnosis and the sleep study was 82 days. Sleep symptoms were not significantly different between the patients with aggressive or less aggressive melanoma. However, in addition to more severe sleep apnea, those with aggressive melanoma were significantly more likely to be older, male, and have a higher BMI than were those with less aggressive disease.

“Among the most salient findings were the dependence of the association between SDB and the markers of melanoma aggressiveness on both age and the actual indicators of tumor aggressiveness,” the researchers noted. The association was significant in patients younger than 55 years only if their Breslow index was greater than 2 mm, the researchers said.

The study findings were limited by the absence of full overnight polysomnography to assess SDB because not all participating centers had access to that option, the researchers noted. However, the results support an independent link between sleep apnea and common measures of aggressive melanoma, especially in younger patients, they said. “Future prospective studies are needed to confirm whether the presence and treatment of SDB and its evolution over time are also associated with poor melanoma outcomes, including death, the pathophysiological mechanisms underlying this association,” they added.

The study was supported in part by Fondo de Investigation Sanitaria, SEPAR, Red Respira, and Sociedad Valenciana de Neumología. The researchers had no financial conflicts to disclose

SOURCE: Martinez-Garcia M et al. CHEST. 2018; doi: 10.1016/j.chest.2018.07.015.

A review of registry data from a major cancer center revealed a strong, bidirectional association between renal cell carcinoma (RCC) and melanoma.

A greater than twofold risk of melanoma in patients with RCC, and a nearly threefold risk of RCC in melanoma patients, were found in the review of the International Tumor Registry Database at The University of Texas MD Anderson Cancer Center.

The incidence of subsequent melanomas or RCCs in this study was in line with other recent reports from cancer registry analyses, reported Kevin B. Kim, MD, and his coinvestigators.

“Clinicians should be more watchful for these secondary cancers in patients with a history of melanoma or RCC,” they wrote. The report is in Cancer Epidemiology.

They found a total of 13,879 patients with melanoma and 7,597 patients with RCC in their review. Of those patients, 89 had both a melanoma and an RCC diagnosis. About 30% were first diagnosed with RCC, 61% were first diagnosed with melanoma, and 9% had both diagnoses around the same time.

Among the RCC-first patients, the standardized incidence ratio for developing a second primary melanoma was 2.31 (95% confidence interval, 1.52-3.37; P less than .001), while for melanoma-first patients, for developing a second primary RCC, it was 2.87 (95% CI, 2.16-3.74; P less than .001).

Those statistics were consistent with other registry reports, according to Dr. Kim and his colleagues, who wrote that the standardized incidence ratios in those studies ranged from 1.28 to 2.5.

In the MD Anderson registry study, nearly one-third of patients with secondary primary melanoma or RCC had a history of additional secondary cancers, according to the researchers. Those diagnoses included nonmelanoma skin cancers, leukemias, prostate cancer, breast cancer, and colon cancer, among others.

That suggested the presence of possible common risk factors that may have included abnormal genetics, though the database lacked the genetic sequencing and family history data to explore that hypothesis further.

“It would be highly desirable to assess germline genetic information on patients and their families, and also somatic gene aberrations in the tumor lesions, in a more systematic way in order to better elucidate the contribution of the genetics in the association between melanoma and RCC,” Dr. Kim and his colleagues said.

They reported that they had no conflicts of interest.

SOURCE: Kim KB et al. Cancer Epidemiol. 2018 Oct 19;57:80-4.

A review of registry data from a major cancer center revealed a strong, bidirectional association between renal cell carcinoma (RCC) and melanoma.

A greater than twofold risk of melanoma in patients with RCC, and a nearly threefold risk of RCC in melanoma patients, were found in the review of the International Tumor Registry Database at The University of Texas MD Anderson Cancer Center.

The incidence of subsequent melanomas or RCCs in this study was in line with other recent reports from cancer registry analyses, reported Kevin B. Kim, MD, and his coinvestigators.

“Clinicians should be more watchful for these secondary cancers in patients with a history of melanoma or RCC,” they wrote. The report is in Cancer Epidemiology.

They found a total of 13,879 patients with melanoma and 7,597 patients with RCC in their review. Of those patients, 89 had both a melanoma and an RCC diagnosis. About 30% were first diagnosed with RCC, 61% were first diagnosed with melanoma, and 9% had both diagnoses around the same time.

Among the RCC-first patients, the standardized incidence ratio for developing a second primary melanoma was 2.31 (95% confidence interval, 1.52-3.37; P less than .001), while for melanoma-first patients, for developing a second primary RCC, it was 2.87 (95% CI, 2.16-3.74; P less than .001).

Those statistics were consistent with other registry reports, according to Dr. Kim and his colleagues, who wrote that the standardized incidence ratios in those studies ranged from 1.28 to 2.5.

In the MD Anderson registry study, nearly one-third of patients with secondary primary melanoma or RCC had a history of additional secondary cancers, according to the researchers. Those diagnoses included nonmelanoma skin cancers, leukemias, prostate cancer, breast cancer, and colon cancer, among others.

That suggested the presence of possible common risk factors that may have included abnormal genetics, though the database lacked the genetic sequencing and family history data to explore that hypothesis further.

“It would be highly desirable to assess germline genetic information on patients and their families, and also somatic gene aberrations in the tumor lesions, in a more systematic way in order to better elucidate the contribution of the genetics in the association between melanoma and RCC,” Dr. Kim and his colleagues said.

They reported that they had no conflicts of interest.

SOURCE: Kim KB et al. Cancer Epidemiol. 2018 Oct 19;57:80-4.

A review of registry data from a major cancer center revealed a strong, bidirectional association between renal cell carcinoma (RCC) and melanoma.

A greater than twofold risk of melanoma in patients with RCC, and a nearly threefold risk of RCC in melanoma patients, were found in the review of the International Tumor Registry Database at The University of Texas MD Anderson Cancer Center.

The incidence of subsequent melanomas or RCCs in this study was in line with other recent reports from cancer registry analyses, reported Kevin B. Kim, MD, and his coinvestigators.

“Clinicians should be more watchful for these secondary cancers in patients with a history of melanoma or RCC,” they wrote. The report is in Cancer Epidemiology.

They found a total of 13,879 patients with melanoma and 7,597 patients with RCC in their review. Of those patients, 89 had both a melanoma and an RCC diagnosis. About 30% were first diagnosed with RCC, 61% were first diagnosed with melanoma, and 9% had both diagnoses around the same time.

Among the RCC-first patients, the standardized incidence ratio for developing a second primary melanoma was 2.31 (95% confidence interval, 1.52-3.37; P less than .001), while for melanoma-first patients, for developing a second primary RCC, it was 2.87 (95% CI, 2.16-3.74; P less than .001).

Those statistics were consistent with other registry reports, according to Dr. Kim and his colleagues, who wrote that the standardized incidence ratios in those studies ranged from 1.28 to 2.5.

In the MD Anderson registry study, nearly one-third of patients with secondary primary melanoma or RCC had a history of additional secondary cancers, according to the researchers. Those diagnoses included nonmelanoma skin cancers, leukemias, prostate cancer, breast cancer, and colon cancer, among others.

That suggested the presence of possible common risk factors that may have included abnormal genetics, though the database lacked the genetic sequencing and family history data to explore that hypothesis further.

“It would be highly desirable to assess germline genetic information on patients and their families, and also somatic gene aberrations in the tumor lesions, in a more systematic way in order to better elucidate the contribution of the genetics in the association between melanoma and RCC,” Dr. Kim and his colleagues said.

They reported that they had no conflicts of interest.

SOURCE: Kim KB et al. Cancer Epidemiol. 2018 Oct 19;57:80-4.

On April 30, 2018, the US Food and Drug Administration expanded the indication for the combined use of dabrafenib and trametinib to include adjuvant treatment of BRAF-mutant melanoma following complete surgical resection. Dabrafenib is an inhibitor of the BRAF kinase, and trametinib is an inhibitor of the MEK kinase, both of which are components of the mitogen-activated protein kinase (MAPK) signaling pathway. The 2 drugs are already approved as both single agents and in combination for the treatment of BRAF-mutated metastatic melanoma.

The current approval was based on data from a phase 3, international, multicenter, randomized, double-blind, placebo-controlled trial. The COMBI-AD trial was carried out from January 2013 through December 2014 at 169 sites in 26 countries. A total of 870 patients with stage III melanoma and BRAF V600E/K mutations and pathologic involvement of regional lymph nodes following complete resection were randomly assigned to receive dabrafenib 150 mg twice daily in combination with trametinib 2 mg once daily, or 2 matched placebos for up to 1 year. Randomization was stratified according to BRAF mutation status (V600E or V600K) and disease stage (IIIA, IIIB or IIIC).

Eligible patients were aged 18 years or older and had an Eastern Cooperative Oncology Group (ECOG) performance status of 0 or 1 (on a scale of 1-5, with higher scores indicating greater disability). Patients who had undergone previous systemic anticancer therapy or radiotherapy were excluded from the study.

The primary endpoint was relapse-free survival (RFS), defined as the time from randomization to disease recurrence or death from any cause. Secondary endpoints included overall survival (OS), distant metastasis-free survival (DMFS), freedom from relapse (FFR), and safety. Clinical examination and imaging by computed tomography, magnetic resonance imaging, or both was performed every 3 months for the first 2 years and then every 6 months until disease recurrence or trial completion.

As of the data cut-off, the combination of dabrafenib and trametinib reduced the risk of disease recurrence or death by 53% compared with placebo (hazard ratio [HR], 0.47; P < .001). Median RFS was not yet reached in the combination arm, compared with 16.6 months in the placebo arm. The RFS benefit was observed across all prespecified subgroups, and the combination was also found to improve OS, DMFS, and FFR.

The most common adverse events (AEs) included pyrexia, fatigue, nausea, rash, vomiting, diarrhea, chills, and myalgia. Overall, 97% of patients experienced an AE, 41% experienced a grade 3/4 AE, and 26% had an AE that led to treatment discontinuation. In patients treated with placebo, those numbers were 88%, 14%, and 3%, respectively.

On April 30, 2018, the US Food and Drug Administration expanded the indication for the combined use of dabrafenib and trametinib to include adjuvant treatment of BRAF-mutant melanoma following complete surgical resection. Dabrafenib is an inhibitor of the BRAF kinase, and trametinib is an inhibitor of the MEK kinase, both of which are components of the mitogen-activated protein kinase (MAPK) signaling pathway. The 2 drugs are already approved as both single agents and in combination for the treatment of BRAF-mutated metastatic melanoma.

The current approval was based on data from a phase 3, international, multicenter, randomized, double-blind, placebo-controlled trial. The COMBI-AD trial was carried out from January 2013 through December 2014 at 169 sites in 26 countries. A total of 870 patients with stage III melanoma and BRAF V600E/K mutations and pathologic involvement of regional lymph nodes following complete resection were randomly assigned to receive dabrafenib 150 mg twice daily in combination with trametinib 2 mg once daily, or 2 matched placebos for up to 1 year. Randomization was stratified according to BRAF mutation status (V600E or V600K) and disease stage (IIIA, IIIB or IIIC).

Eligible patients were aged 18 years or older and had an Eastern Cooperative Oncology Group (ECOG) performance status of 0 or 1 (on a scale of 1-5, with higher scores indicating greater disability). Patients who had undergone previous systemic anticancer therapy or radiotherapy were excluded from the study.

The primary endpoint was relapse-free survival (RFS), defined as the time from randomization to disease recurrence or death from any cause. Secondary endpoints included overall survival (OS), distant metastasis-free survival (DMFS), freedom from relapse (FFR), and safety. Clinical examination and imaging by computed tomography, magnetic resonance imaging, or both was performed every 3 months for the first 2 years and then every 6 months until disease recurrence or trial completion.

As of the data cut-off, the combination of dabrafenib and trametinib reduced the risk of disease recurrence or death by 53% compared with placebo (hazard ratio [HR], 0.47; P < .001). Median RFS was not yet reached in the combination arm, compared with 16.6 months in the placebo arm. The RFS benefit was observed across all prespecified subgroups, and the combination was also found to improve OS, DMFS, and FFR.

The most common adverse events (AEs) included pyrexia, fatigue, nausea, rash, vomiting, diarrhea, chills, and myalgia. Overall, 97% of patients experienced an AE, 41% experienced a grade 3/4 AE, and 26% had an AE that led to treatment discontinuation. In patients treated with placebo, those numbers were 88%, 14%, and 3%, respectively.

On April 30, 2018, the US Food and Drug Administration expanded the indication for the combined use of dabrafenib and trametinib to include adjuvant treatment of BRAF-mutant melanoma following complete surgical resection. Dabrafenib is an inhibitor of the BRAF kinase, and trametinib is an inhibitor of the MEK kinase, both of which are components of the mitogen-activated protein kinase (MAPK) signaling pathway. The 2 drugs are already approved as both single agents and in combination for the treatment of BRAF-mutated metastatic melanoma.

The current approval was based on data from a phase 3, international, multicenter, randomized, double-blind, placebo-controlled trial. The COMBI-AD trial was carried out from January 2013 through December 2014 at 169 sites in 26 countries. A total of 870 patients with stage III melanoma and BRAF V600E/K mutations and pathologic involvement of regional lymph nodes following complete resection were randomly assigned to receive dabrafenib 150 mg twice daily in combination with trametinib 2 mg once daily, or 2 matched placebos for up to 1 year. Randomization was stratified according to BRAF mutation status (V600E or V600K) and disease stage (IIIA, IIIB or IIIC).

Eligible patients were aged 18 years or older and had an Eastern Cooperative Oncology Group (ECOG) performance status of 0 or 1 (on a scale of 1-5, with higher scores indicating greater disability). Patients who had undergone previous systemic anticancer therapy or radiotherapy were excluded from the study.

The primary endpoint was relapse-free survival (RFS), defined as the time from randomization to disease recurrence or death from any cause. Secondary endpoints included overall survival (OS), distant metastasis-free survival (DMFS), freedom from relapse (FFR), and safety. Clinical examination and imaging by computed tomography, magnetic resonance imaging, or both was performed every 3 months for the first 2 years and then every 6 months until disease recurrence or trial completion.

As of the data cut-off, the combination of dabrafenib and trametinib reduced the risk of disease recurrence or death by 53% compared with placebo (hazard ratio [HR], 0.47; P < .001). Median RFS was not yet reached in the combination arm, compared with 16.6 months in the placebo arm. The RFS benefit was observed across all prespecified subgroups, and the combination was also found to improve OS, DMFS, and FFR.

The most common adverse events (AEs) included pyrexia, fatigue, nausea, rash, vomiting, diarrhea, chills, and myalgia. Overall, 97% of patients experienced an AE, 41% experienced a grade 3/4 AE, and 26% had an AE that led to treatment discontinuation. In patients treated with placebo, those numbers were 88%, 14%, and 3%, respectively.

WASHINGTON – Positron emission tomography (PET) using the CD8-tracer ⁸⁹Zr-IAB22M2C was safe and provided detailed whole-body information on the biodistribution of CD8 T-cells in advanced solid tumors and reference tissue in an open-label, phase 1, first-in-human study.

The findings demonstrate the ability of the tracer–an anti-CD8 zirconium-labeled minibody–to noninvasively detect CD8 distribution in patients with metastatic solid tumors, potentially providing more information – and more quickly – than is possible with a single biopsy, Michael S. Gordon, MD, reported during a late-breaking abstract session at the annual meeting of the Society for Immunotherapy of Cancer.

During a dose escalation period (stage 1) of the study, six patients received 3 mCi of ⁸⁹Zr-IAB22M2C once intravenously followed by serial PET scans over a period of 5-7 days. The patients received increasing protein doses of 0.2 through 10 mg to establish safety and determine a “recommended protein dose and scanning parameters for subsequent trials,” explained Dr. Gordon of HonorHealth Research Institute, Scottsdale, Ariz.

Stage 1 was followed by a dose expansion period (stage 2) in which an additional nine subjects were scanned to better delineate the recommended phase 2 study dose, he said.

All patients were monitored for drug-related adverse events and evaluated with blood chemistry, hematology, cytokine assay, and anti-drug antibodies. Biodistribution, radiodosimetry and semi-quantitative evaluation of CD8-tracer uptake were performed in all patients.

“We saw rapid clearance with excretion through the hepatobiliary mechanism, uptake in T-cell rich tissues, and no uptake in background normal tissues – so no uptake in muscle, heart, brain, or lungs,” he said, adding that “tumor uptake was variable and was clearly seen in 10 out of 15 patients.

“The protein dose that was considered to have favorable biodistribution was the range between 0.5 and 1.5, and based upon the analysis, the most favorable imaging time point ... was deemed to be 24 hours,” he said, noting that changes could be seen in as early as 6 hours.

SOURCE: Gordon M et al., SITC 2018: Abstract LB49.

WASHINGTON – Positron emission tomography (PET) using the CD8-tracer ⁸⁹Zr-IAB22M2C was safe and provided detailed whole-body information on the biodistribution of CD8 T-cells in advanced solid tumors and reference tissue in an open-label, phase 1, first-in-human study.

The findings demonstrate the ability of the tracer–an anti-CD8 zirconium-labeled minibody–to noninvasively detect CD8 distribution in patients with metastatic solid tumors, potentially providing more information – and more quickly – than is possible with a single biopsy, Michael S. Gordon, MD, reported during a late-breaking abstract session at the annual meeting of the Society for Immunotherapy of Cancer.

During a dose escalation period (stage 1) of the study, six patients received 3 mCi of ⁸⁹Zr-IAB22M2C once intravenously followed by serial PET scans over a period of 5-7 days. The patients received increasing protein doses of 0.2 through 10 mg to establish safety and determine a “recommended protein dose and scanning parameters for subsequent trials,” explained Dr. Gordon of HonorHealth Research Institute, Scottsdale, Ariz.

Stage 1 was followed by a dose expansion period (stage 2) in which an additional nine subjects were scanned to better delineate the recommended phase 2 study dose, he said.

All patients were monitored for drug-related adverse events and evaluated with blood chemistry, hematology, cytokine assay, and anti-drug antibodies. Biodistribution, radiodosimetry and semi-quantitative evaluation of CD8-tracer uptake were performed in all patients.

“We saw rapid clearance with excretion through the hepatobiliary mechanism, uptake in T-cell rich tissues, and no uptake in background normal tissues – so no uptake in muscle, heart, brain, or lungs,” he said, adding that “tumor uptake was variable and was clearly seen in 10 out of 15 patients.

“The protein dose that was considered to have favorable biodistribution was the range between 0.5 and 1.5, and based upon the analysis, the most favorable imaging time point ... was deemed to be 24 hours,” he said, noting that changes could be seen in as early as 6 hours.

SOURCE: Gordon M et al., SITC 2018: Abstract LB49.

WASHINGTON – Positron emission tomography (PET) using the CD8-tracer ⁸⁹Zr-IAB22M2C was safe and provided detailed whole-body information on the biodistribution of CD8 T-cells in advanced solid tumors and reference tissue in an open-label, phase 1, first-in-human study.

The findings demonstrate the ability of the tracer–an anti-CD8 zirconium-labeled minibody–to noninvasively detect CD8 distribution in patients with metastatic solid tumors, potentially providing more information – and more quickly – than is possible with a single biopsy, Michael S. Gordon, MD, reported during a late-breaking abstract session at the annual meeting of the Society for Immunotherapy of Cancer.

During a dose escalation period (stage 1) of the study, six patients received 3 mCi of ⁸⁹Zr-IAB22M2C once intravenously followed by serial PET scans over a period of 5-7 days. The patients received increasing protein doses of 0.2 through 10 mg to establish safety and determine a “recommended protein dose and scanning parameters for subsequent trials,” explained Dr. Gordon of HonorHealth Research Institute, Scottsdale, Ariz.

Stage 1 was followed by a dose expansion period (stage 2) in which an additional nine subjects were scanned to better delineate the recommended phase 2 study dose, he said.

All patients were monitored for drug-related adverse events and evaluated with blood chemistry, hematology, cytokine assay, and anti-drug antibodies. Biodistribution, radiodosimetry and semi-quantitative evaluation of CD8-tracer uptake were performed in all patients.

“We saw rapid clearance with excretion through the hepatobiliary mechanism, uptake in T-cell rich tissues, and no uptake in background normal tissues – so no uptake in muscle, heart, brain, or lungs,” he said, adding that “tumor uptake was variable and was clearly seen in 10 out of 15 patients.

“The protein dose that was considered to have favorable biodistribution was the range between 0.5 and 1.5, and based upon the analysis, the most favorable imaging time point ... was deemed to be 24 hours,” he said, noting that changes could be seen in as early as 6 hours.

SOURCE: Gordon M et al., SITC 2018: Abstract LB49.

Perusal of any lifestyle magazine reveals photographs of movie stars with sun-kissed skin. One can imagine their carefree lives afford ample time outdoors, a vast departure from the pasty masses trapped in their office cubicles. Our cultural norms dictate that a glowing look is a sign of health and attractiveness. Light-skinned individuals must receive regular exposure to sunlight to maintain their bronzed color. Over the last century, the indoor tanning industry has expanded to fill the niche created by the ceaseless pursuit of the ideal complexion.

Indoor tanning use causes up to 170,000 cases of skin cancer per year worldwide.¹ Accumulating sunburns early in life is a leading risk factor for melanoma, the deadliest form of skin cancer. Campaigns to spread awareness about the link between UV radiation and skin cancer are ubiquitous. The US Food and Drug Administration (FDA) recommends against the use of tanning beds by minors, and several states have passed laws restricting their access. However, adolescents continue to engage. White female high school students remain frequenters of this practice, with more than 15% reporting current use of indoor tanning facilities.² It seems targeted outreach and media campaigns are unsuccessful in influencing their behavior, and new approaches are needed.

Tanning-Related Injuries

Concentrated exposure to UV radiation during indoor tanning sessions carries the potential for immediate harm. Public health campaigns have focused on long-term skin cancer risk while overlooking thousands of injuries that occur annually at tanning salons across the country. The US Consumer Product Safety Commission first noted injuries associated with the largely unregulated tanning industry in 1974.³ In response, the FDA limited radiation levels, required indoor tanning devices to have timers and manual off switches, and mandated the use of protective eyewear. These changes sparked industry backlash due to the cost of compliance. The Indoor Tanning Association (no longer in operation) hired a lobbying firm in 2009 that successfully fought to resist further regulation.³

More than 3000 indoor tanning–related injuries are treated in emergency departments annually.⁴ White women aged 18 to 24 years who visit tanning salons are most likely to sustain injuries. In one study, severe skin burns accounted for 80% of emergency department visits, while the rest were due to fainting, eye injuries, and infections from unsanitary equipment.Timer malfunctions may play a role in tanning bed injuries, as several injured patients have reported falling asleep while tanning.⁴ Only 5% of tanning salons in North Carolina complied with FDA-recommended exposure schedules in 2003, suggesting that neglect or deliberate override of safety features also may contribute to injury.⁵

Challenges in Changing Tanning Behaviors

Use of indoor tanning facilities by adolescents is boosted by their misperceptions of peer engagement. Many teenagers overestimate the number of their peers who tan, which influences their own behavior.⁶ This phenomenon illustrates the importance of perceived social norms in this demographic group. Motivating adolescents to take actions that violate these norms poses a considerable challenge.

To teenagers, the perceived immediate benefits of indoor tanning far outweigh perceived costs. The immediate benefit of indoor tanning is having attractive skin, which may improve social standing and perceived self-worth. When adolescents weigh costs and benefits at different points in time, the present value of future events is discounted when compared to current events. For example, an immediate loss of $1000 is more impactful than losing $1000 ten years down the road. Adolescents are motivated to succeed in the short-term and may heavily discount future adverse effects such as the risk for developing cancer or premature aging of the skin. Therefore, getting a tan may be the “rational” decision even if there is an increased risk of future skin cancer.⁷

The addiction theory of tanning seeks to explain why individuals continue to tan despite knowledge of the associated risks. Exposure to UV radiation releases endorphins, producing a natural narcotic effect.⁸ The relaxing feeling sunbathers experience may lead to a phenomenon similar to addictions to opioids, alcohol, tobacco, and sugar. Behavior change is a process that unfolds over time. The 5 stages are precontemplation, contemplation, preparation, action, and maintenance.⁹ Education falls on deaf ears when the recipients are not ready to consider change. Individuals who are already thinking about cutting back on tanning fall into the category of contemplators and are the most open to educational techniques.⁹

Potential Solutions

Despite the dire long-term consequences of melanoma, warning adolescents of the increased cancer risk from tanning is an ineffective dissuasion strategy.¹⁰ Solutions that aim to limit tanning behaviors in this population should instead center on decreasing the present utility of a tan. Emphasis on the risk of immediate injury may be one effective route. The costs of potential damage to current appearance, vision, and overall health are not readily discounted by adolescents. Teens who devote time and money to the pursuit of a golden glow place high value on attractiveness. Such individuals respond best to loss-framed messages that focus on the impact of UV exposure on appearance, not just their health.¹¹ However, appearance-motivated individuals may feel threatened by interventions that aim to reduce their decision freedom and display high reactance, leading them to reassert their freedom by resisting antitanning messages.¹² Another strategy is altering media messaging to support a wider swathe of skin tones, reducing the social benefits of a tan. To swing the needle on our cultural norms, this intervention will require an enduring effort with backing from media outlets and celebrities.

Taxes on tanning salons and devices provide a basic economic disincentive to adolescents who typically have limited funds. State cigarette tax increases successfully reduced youth consumption of tobacco in the 1990s.¹³ A provision of the Patient Protection and Affordable Care Act levied a 10% excise tax on tanning salons with promising early results.¹⁴ Further taxation may generate revenue for educational campaigns on the injury risks of tanning. Continued safety improvements that limit user exposure to UV radiation and enforcement of FDA regulations also will decrease injury rates. Minimizing the UV output of tanning beds and designing protective equipment for tanners are 2 potential objectives. Improvement of over-the-counter sunless tanning agents also will provide alternatives to catching rays for adolescents who wish to attain a bronzed complexion.

Final Thoughts

Health care providers must assess a patient’s readiness for change and tailor interventions accordingly. Regardless of the method, new approaches to combat adolescent tanning injuries may reduce health care costs and minimize serious public health concerns for the next generation.

Perusal of any lifestyle magazine reveals photographs of movie stars with sun-kissed skin. One can imagine their carefree lives afford ample time outdoors, a vast departure from the pasty masses trapped in their office cubicles. Our cultural norms dictate that a glowing look is a sign of health and attractiveness. Light-skinned individuals must receive regular exposure to sunlight to maintain their bronzed color. Over the last century, the indoor tanning industry has expanded to fill the niche created by the ceaseless pursuit of the ideal complexion.

Indoor tanning use causes up to 170,000 cases of skin cancer per year worldwide.¹ Accumulating sunburns early in life is a leading risk factor for melanoma, the deadliest form of skin cancer. Campaigns to spread awareness about the link between UV radiation and skin cancer are ubiquitous. The US Food and Drug Administration (FDA) recommends against the use of tanning beds by minors, and several states have passed laws restricting their access. However, adolescents continue to engage. White female high school students remain frequenters of this practice, with more than 15% reporting current use of indoor tanning facilities.² It seems targeted outreach and media campaigns are unsuccessful in influencing their behavior, and new approaches are needed.

Tanning-Related Injuries

Concentrated exposure to UV radiation during indoor tanning sessions carries the potential for immediate harm. Public health campaigns have focused on long-term skin cancer risk while overlooking thousands of injuries that occur annually at tanning salons across the country. The US Consumer Product Safety Commission first noted injuries associated with the largely unregulated tanning industry in 1974.³ In response, the FDA limited radiation levels, required indoor tanning devices to have timers and manual off switches, and mandated the use of protective eyewear. These changes sparked industry backlash due to the cost of compliance. The Indoor Tanning Association (no longer in operation) hired a lobbying firm in 2009 that successfully fought to resist further regulation.³

More than 3000 indoor tanning–related injuries are treated in emergency departments annually.⁴ White women aged 18 to 24 years who visit tanning salons are most likely to sustain injuries. In one study, severe skin burns accounted for 80% of emergency department visits, while the rest were due to fainting, eye injuries, and infections from unsanitary equipment.Timer malfunctions may play a role in tanning bed injuries, as several injured patients have reported falling asleep while tanning.⁴ Only 5% of tanning salons in North Carolina complied with FDA-recommended exposure schedules in 2003, suggesting that neglect or deliberate override of safety features also may contribute to injury.⁵

Challenges in Changing Tanning Behaviors

Use of indoor tanning facilities by adolescents is boosted by their misperceptions of peer engagement. Many teenagers overestimate the number of their peers who tan, which influences their own behavior.⁶ This phenomenon illustrates the importance of perceived social norms in this demographic group. Motivating adolescents to take actions that violate these norms poses a considerable challenge.

To teenagers, the perceived immediate benefits of indoor tanning far outweigh perceived costs. The immediate benefit of indoor tanning is having attractive skin, which may improve social standing and perceived self-worth. When adolescents weigh costs and benefits at different points in time, the present value of future events is discounted when compared to current events. For example, an immediate loss of $1000 is more impactful than losing $1000 ten years down the road. Adolescents are motivated to succeed in the short-term and may heavily discount future adverse effects such as the risk for developing cancer or premature aging of the skin. Therefore, getting a tan may be the “rational” decision even if there is an increased risk of future skin cancer.⁷

The addiction theory of tanning seeks to explain why individuals continue to tan despite knowledge of the associated risks. Exposure to UV radiation releases endorphins, producing a natural narcotic effect.⁸ The relaxing feeling sunbathers experience may lead to a phenomenon similar to addictions to opioids, alcohol, tobacco, and sugar. Behavior change is a process that unfolds over time. The 5 stages are precontemplation, contemplation, preparation, action, and maintenance.⁹ Education falls on deaf ears when the recipients are not ready to consider change. Individuals who are already thinking about cutting back on tanning fall into the category of contemplators and are the most open to educational techniques.⁹

Potential Solutions

Despite the dire long-term consequences of melanoma, warning adolescents of the increased cancer risk from tanning is an ineffective dissuasion strategy.¹⁰ Solutions that aim to limit tanning behaviors in this population should instead center on decreasing the present utility of a tan. Emphasis on the risk of immediate injury may be one effective route. The costs of potential damage to current appearance, vision, and overall health are not readily discounted by adolescents. Teens who devote time and money to the pursuit of a golden glow place high value on attractiveness. Such individuals respond best to loss-framed messages that focus on the impact of UV exposure on appearance, not just their health.¹¹ However, appearance-motivated individuals may feel threatened by interventions that aim to reduce their decision freedom and display high reactance, leading them to reassert their freedom by resisting antitanning messages.¹² Another strategy is altering media messaging to support a wider swathe of skin tones, reducing the social benefits of a tan. To swing the needle on our cultural norms, this intervention will require an enduring effort with backing from media outlets and celebrities.

Taxes on tanning salons and devices provide a basic economic disincentive to adolescents who typically have limited funds. State cigarette tax increases successfully reduced youth consumption of tobacco in the 1990s.¹³ A provision of the Patient Protection and Affordable Care Act levied a 10% excise tax on tanning salons with promising early results.¹⁴ Further taxation may generate revenue for educational campaigns on the injury risks of tanning. Continued safety improvements that limit user exposure to UV radiation and enforcement of FDA regulations also will decrease injury rates. Minimizing the UV output of tanning beds and designing protective equipment for tanners are 2 potential objectives. Improvement of over-the-counter sunless tanning agents also will provide alternatives to catching rays for adolescents who wish to attain a bronzed complexion.

Final Thoughts

Health care providers must assess a patient’s readiness for change and tailor interventions accordingly. Regardless of the method, new approaches to combat adolescent tanning injuries may reduce health care costs and minimize serious public health concerns for the next generation.

Perusal of any lifestyle magazine reveals photographs of movie stars with sun-kissed skin. One can imagine their carefree lives afford ample time outdoors, a vast departure from the pasty masses trapped in their office cubicles. Our cultural norms dictate that a glowing look is a sign of health and attractiveness. Light-skinned individuals must receive regular exposure to sunlight to maintain their bronzed color. Over the last century, the indoor tanning industry has expanded to fill the niche created by the ceaseless pursuit of the ideal complexion.

Indoor tanning use causes up to 170,000 cases of skin cancer per year worldwide.¹ Accumulating sunburns early in life is a leading risk factor for melanoma, the deadliest form of skin cancer. Campaigns to spread awareness about the link between UV radiation and skin cancer are ubiquitous. The US Food and Drug Administration (FDA) recommends against the use of tanning beds by minors, and several states have passed laws restricting their access. However, adolescents continue to engage. White female high school students remain frequenters of this practice, with more than 15% reporting current use of indoor tanning facilities.² It seems targeted outreach and media campaigns are unsuccessful in influencing their behavior, and new approaches are needed.

Tanning-Related Injuries

Concentrated exposure to UV radiation during indoor tanning sessions carries the potential for immediate harm. Public health campaigns have focused on long-term skin cancer risk while overlooking thousands of injuries that occur annually at tanning salons across the country. The US Consumer Product Safety Commission first noted injuries associated with the largely unregulated tanning industry in 1974.³ In response, the FDA limited radiation levels, required indoor tanning devices to have timers and manual off switches, and mandated the use of protective eyewear. These changes sparked industry backlash due to the cost of compliance. The Indoor Tanning Association (no longer in operation) hired a lobbying firm in 2009 that successfully fought to resist further regulation.³

More than 3000 indoor tanning–related injuries are treated in emergency departments annually.⁴ White women aged 18 to 24 years who visit tanning salons are most likely to sustain injuries. In one study, severe skin burns accounted for 80% of emergency department visits, while the rest were due to fainting, eye injuries, and infections from unsanitary equipment.Timer malfunctions may play a role in tanning bed injuries, as several injured patients have reported falling asleep while tanning.⁴ Only 5% of tanning salons in North Carolina complied with FDA-recommended exposure schedules in 2003, suggesting that neglect or deliberate override of safety features also may contribute to injury.⁵

Challenges in Changing Tanning Behaviors

Use of indoor tanning facilities by adolescents is boosted by their misperceptions of peer engagement. Many teenagers overestimate the number of their peers who tan, which influences their own behavior.⁶ This phenomenon illustrates the importance of perceived social norms in this demographic group. Motivating adolescents to take actions that violate these norms poses a considerable challenge.

To teenagers, the perceived immediate benefits of indoor tanning far outweigh perceived costs. The immediate benefit of indoor tanning is having attractive skin, which may improve social standing and perceived self-worth. When adolescents weigh costs and benefits at different points in time, the present value of future events is discounted when compared to current events. For example, an immediate loss of $1000 is more impactful than losing $1000 ten years down the road. Adolescents are motivated to succeed in the short-term and may heavily discount future adverse effects such as the risk for developing cancer or premature aging of the skin. Therefore, getting a tan may be the “rational” decision even if there is an increased risk of future skin cancer.⁷

The addiction theory of tanning seeks to explain why individuals continue to tan despite knowledge of the associated risks. Exposure to UV radiation releases endorphins, producing a natural narcotic effect.⁸ The relaxing feeling sunbathers experience may lead to a phenomenon similar to addictions to opioids, alcohol, tobacco, and sugar. Behavior change is a process that unfolds over time. The 5 stages are precontemplation, contemplation, preparation, action, and maintenance.⁹ Education falls on deaf ears when the recipients are not ready to consider change. Individuals who are already thinking about cutting back on tanning fall into the category of contemplators and are the most open to educational techniques.⁹

Potential Solutions

Despite the dire long-term consequences of melanoma, warning adolescents of the increased cancer risk from tanning is an ineffective dissuasion strategy.¹⁰ Solutions that aim to limit tanning behaviors in this population should instead center on decreasing the present utility of a tan. Emphasis on the risk of immediate injury may be one effective route. The costs of potential damage to current appearance, vision, and overall health are not readily discounted by adolescents. Teens who devote time and money to the pursuit of a golden glow place high value on attractiveness. Such individuals respond best to loss-framed messages that focus on the impact of UV exposure on appearance, not just their health.¹¹ However, appearance-motivated individuals may feel threatened by interventions that aim to reduce their decision freedom and display high reactance, leading them to reassert their freedom by resisting antitanning messages.¹² Another strategy is altering media messaging to support a wider swathe of skin tones, reducing the social benefits of a tan. To swing the needle on our cultural norms, this intervention will require an enduring effort with backing from media outlets and celebrities.

Taxes on tanning salons and devices provide a basic economic disincentive to adolescents who typically have limited funds. State cigarette tax increases successfully reduced youth consumption of tobacco in the 1990s.¹³ A provision of the Patient Protection and Affordable Care Act levied a 10% excise tax on tanning salons with promising early results.¹⁴ Further taxation may generate revenue for educational campaigns on the injury risks of tanning. Continued safety improvements that limit user exposure to UV radiation and enforcement of FDA regulations also will decrease injury rates. Minimizing the UV output of tanning beds and designing protective equipment for tanners are 2 potential objectives. Improvement of over-the-counter sunless tanning agents also will provide alternatives to catching rays for adolescents who wish to attain a bronzed complexion.

Final Thoughts

Health care providers must assess a patient’s readiness for change and tailor interventions accordingly. Regardless of the method, new approaches to combat adolescent tanning injuries may reduce health care costs and minimize serious public health concerns for the next generation.