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Compared with the use of topical minoxidil for hair loss, the used of low-dose oral minoxidil (LDOM) can be considered when topical minoxidil is more expensive or logistically challenging, has plateaued in efficacy, leaves unwanted product residue, causes skin irritation, or exacerbates the inflammatory process.

Those are among the key recommendations that resulted from a modified eDelphi consensus of experts who convened to develop guidelines for LDOM prescribing and monitoring.

“Topical minoxidil is safe, effective, over-the-counter, and FDA-approved to treat the most common form of hair loss, androgenetic alopecia,” one of the study authors, Jennifer Fu, MD, a dermatologist who directs the Hair Disorders Clinic at the University of California, San Francisco, told this news organization following the annual meeting of the American Academy of Dermatology. The results of the expert consensus were presented during a poster session at the meeting. “It is often used off label for other types of hair loss, yet clinicians who treat hair loss know that patient compliance with topical minoxidil can be poor for a variety of reasons,” she said. “Patients report that it can be difficult to apply and complicate hair styling. For many patients, topical minoxidil can be drying or cause irritant or allergic contact reactions.”

Dr. Fu
Dr. Jennifer Fu

LDOM has become a popular alternative for patients for whom topical minoxidil is logistically challenging, irritating, or ineffective, she continued. Although oral minoxidil is no longer a first-line antihypertensive agent given the risk of cardiovascular adverse effects at higher antihypertensive dosing (10-40 mg daily), a growing number of small studies have documented the use of LDOM at doses ranging from 0.25 mg to 5 mg daily as a safe, effective option for various types of hair loss.

“Given the current absence of larger trials on this topic, our research group identified a need for expert-based guidelines for prescribing and monitoring LDOM use in hair loss patients,” Dr. Fu said. “Our goal was to provide clinicians who treat hair loss patients a road map for using LDOM effectively, maximizing hair growth, and minimizing potential cardiovascular adverse effects.”


 

Arriving at a Consensus

The process involved 43 hair loss specialists from 12 countries with an average of 6.29 years of experience with LDOM for hair loss, who participated in a multi-round modified Delphi process. They considered questions that addressed LDOM safety, efficacy, dosing, and monitoring for hair loss, and consensus was reached if at least 70% of participants indicated “agree” or “strongly agree” on a five-point Likert scale. Round 1 consisted of 180 open-ended, multiple-choice, or Likert-scale questions, while round 2 involved 121 Likert-scale questions, round 3 consisted of 16 Likert-scale questions, and round 4 included 11 Likert-scale questions. In all, 94 items achieved Likert-scale consensus.

Specifically, experts on the panel found a direct benefit of LDOM for androgenetic alopecia, age-related patterned thinning, alopecia areata, telogen effluvium, traction alopecia, persistent chemotherapy-induced alopecia, and endocrine therapy-induced alopecia. They found a supportive benefit of LDOM for lichen planopilaris, frontal fibrosing alopecia, central centrifugal alopecia, and fibrosing alopecia in a patterned distribution.

“LDOM can be considered when topical minoxidil is more expensive, logistically challenging, has plateaued in efficacy, results in undesirable product residue/skin irritation,” or exacerbates inflammatory processes (ie eczema, psoriasis), they added.

Contraindications to LDOM listed in the consensus recommendations include hypersensitivity to minoxidil, significant drug-drug interactions with LDOM, a history of pericardial effusion/tamponade, pericarditis, heart failure, pulmonary hypertension associated with mitral stenosis, pheochromocytoma, and pregnancy/breastfeeding. Cited precautions of LDOM use include a history of tachycardia or arrhythmia, hypotension, renal impairment, and being on dialysis.

Dr. Fu and colleagues noted that the earliest time point at which LDOM should be expected to demonstrate efficacy is 3-6 months. “Baseline testing is not routine but may be considered in case of identified precautions,” they wrote. They also noted that LDOM can possibly be co-administered with beta-blockers with a specialty consultation, and with spironolactone in biologic female or transgender female patients with hirsutism, acne, polycystic ovary syndrome (PCOS), and with lower extremity and facial edema.

According to the consensus statement, the most frequently prescribed LDOM dosing regimen in adult females aged 18 years and older includes a starting dose of 1.25 mg daily, with a dosing range between 0.625 mg and 5 mg daily. For adult males, the most frequently prescribed dosing regimen is a starting dose of 2.5 daily, with a dosing range between 1.25 mg and 5 mg daily. The most frequently prescribed LDOM dosing regimen in adolescent females aged 12-17 years is a starting dose of 0.625 mg daily, with a dosing range of 0.625 to 2.5 mg daily. For adolescent males, the recommended regimen is a starting dose of 1.25 mg daily, with a dosing range of 1.25 mg to 5 mg daily.

“We hope that this consensus statement will guide our colleagues who would like to use LDOM to treat hair loss in their adult and adolescent patients,” Dr. Fu told this news organization. “These recommendations may be used to inform clinical practice until additional evidence-based data becomes available.”

She acknowledged certain limitations of the effort, including the fact that the expert panel was underrepresented in treating hair loss in pediatric patients, “and therefore failed to reach consensus on LDOM pediatric use and dosing,” she said. “We encourage our pediatric dermatology colleagues to further research LDOM in pediatric patients.”

In an interview, Shari Lipner, MD, PhD, associate professor of clinical dermatology, Weill Cornell Medicine, New York, who was asked to comment, but was not involved with the work, characterized the consensus as a “helpful, concise reference guide for dermatologists.”

Dr. Lipner
Dr. Shari R. Lipner

The advantages of the study are the standardized methods used, “and the experience of the panel,” she said. “Study limitations include the response rate, which was less than 60%, and the risk of potential side effects are not stratified by age, sex, or comorbidities,” she added.

Dr. Fu disclosed that she is a consultant to Pfizer. Dr. Lipner reported having no relevant disclosures.

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Compared with the use of topical minoxidil for hair loss, the used of low-dose oral minoxidil (LDOM) can be considered when topical minoxidil is more expensive or logistically challenging, has plateaued in efficacy, leaves unwanted product residue, causes skin irritation, or exacerbates the inflammatory process.

Those are among the key recommendations that resulted from a modified eDelphi consensus of experts who convened to develop guidelines for LDOM prescribing and monitoring.

“Topical minoxidil is safe, effective, over-the-counter, and FDA-approved to treat the most common form of hair loss, androgenetic alopecia,” one of the study authors, Jennifer Fu, MD, a dermatologist who directs the Hair Disorders Clinic at the University of California, San Francisco, told this news organization following the annual meeting of the American Academy of Dermatology. The results of the expert consensus were presented during a poster session at the meeting. “It is often used off label for other types of hair loss, yet clinicians who treat hair loss know that patient compliance with topical minoxidil can be poor for a variety of reasons,” she said. “Patients report that it can be difficult to apply and complicate hair styling. For many patients, topical minoxidil can be drying or cause irritant or allergic contact reactions.”

Dr. Fu
Dr. Jennifer Fu

LDOM has become a popular alternative for patients for whom topical minoxidil is logistically challenging, irritating, or ineffective, she continued. Although oral minoxidil is no longer a first-line antihypertensive agent given the risk of cardiovascular adverse effects at higher antihypertensive dosing (10-40 mg daily), a growing number of small studies have documented the use of LDOM at doses ranging from 0.25 mg to 5 mg daily as a safe, effective option for various types of hair loss.

“Given the current absence of larger trials on this topic, our research group identified a need for expert-based guidelines for prescribing and monitoring LDOM use in hair loss patients,” Dr. Fu said. “Our goal was to provide clinicians who treat hair loss patients a road map for using LDOM effectively, maximizing hair growth, and minimizing potential cardiovascular adverse effects.”


 

Arriving at a Consensus

The process involved 43 hair loss specialists from 12 countries with an average of 6.29 years of experience with LDOM for hair loss, who participated in a multi-round modified Delphi process. They considered questions that addressed LDOM safety, efficacy, dosing, and monitoring for hair loss, and consensus was reached if at least 70% of participants indicated “agree” or “strongly agree” on a five-point Likert scale. Round 1 consisted of 180 open-ended, multiple-choice, or Likert-scale questions, while round 2 involved 121 Likert-scale questions, round 3 consisted of 16 Likert-scale questions, and round 4 included 11 Likert-scale questions. In all, 94 items achieved Likert-scale consensus.

Specifically, experts on the panel found a direct benefit of LDOM for androgenetic alopecia, age-related patterned thinning, alopecia areata, telogen effluvium, traction alopecia, persistent chemotherapy-induced alopecia, and endocrine therapy-induced alopecia. They found a supportive benefit of LDOM for lichen planopilaris, frontal fibrosing alopecia, central centrifugal alopecia, and fibrosing alopecia in a patterned distribution.

“LDOM can be considered when topical minoxidil is more expensive, logistically challenging, has plateaued in efficacy, results in undesirable product residue/skin irritation,” or exacerbates inflammatory processes (ie eczema, psoriasis), they added.

Contraindications to LDOM listed in the consensus recommendations include hypersensitivity to minoxidil, significant drug-drug interactions with LDOM, a history of pericardial effusion/tamponade, pericarditis, heart failure, pulmonary hypertension associated with mitral stenosis, pheochromocytoma, and pregnancy/breastfeeding. Cited precautions of LDOM use include a history of tachycardia or arrhythmia, hypotension, renal impairment, and being on dialysis.

Dr. Fu and colleagues noted that the earliest time point at which LDOM should be expected to demonstrate efficacy is 3-6 months. “Baseline testing is not routine but may be considered in case of identified precautions,” they wrote. They also noted that LDOM can possibly be co-administered with beta-blockers with a specialty consultation, and with spironolactone in biologic female or transgender female patients with hirsutism, acne, polycystic ovary syndrome (PCOS), and with lower extremity and facial edema.

According to the consensus statement, the most frequently prescribed LDOM dosing regimen in adult females aged 18 years and older includes a starting dose of 1.25 mg daily, with a dosing range between 0.625 mg and 5 mg daily. For adult males, the most frequently prescribed dosing regimen is a starting dose of 2.5 daily, with a dosing range between 1.25 mg and 5 mg daily. The most frequently prescribed LDOM dosing regimen in adolescent females aged 12-17 years is a starting dose of 0.625 mg daily, with a dosing range of 0.625 to 2.5 mg daily. For adolescent males, the recommended regimen is a starting dose of 1.25 mg daily, with a dosing range of 1.25 mg to 5 mg daily.

“We hope that this consensus statement will guide our colleagues who would like to use LDOM to treat hair loss in their adult and adolescent patients,” Dr. Fu told this news organization. “These recommendations may be used to inform clinical practice until additional evidence-based data becomes available.”

She acknowledged certain limitations of the effort, including the fact that the expert panel was underrepresented in treating hair loss in pediatric patients, “and therefore failed to reach consensus on LDOM pediatric use and dosing,” she said. “We encourage our pediatric dermatology colleagues to further research LDOM in pediatric patients.”

In an interview, Shari Lipner, MD, PhD, associate professor of clinical dermatology, Weill Cornell Medicine, New York, who was asked to comment, but was not involved with the work, characterized the consensus as a “helpful, concise reference guide for dermatologists.”

Dr. Lipner
Dr. Shari R. Lipner

The advantages of the study are the standardized methods used, “and the experience of the panel,” she said. “Study limitations include the response rate, which was less than 60%, and the risk of potential side effects are not stratified by age, sex, or comorbidities,” she added.

Dr. Fu disclosed that she is a consultant to Pfizer. Dr. Lipner reported having no relevant disclosures.

 

Compared with the use of topical minoxidil for hair loss, the used of low-dose oral minoxidil (LDOM) can be considered when topical minoxidil is more expensive or logistically challenging, has plateaued in efficacy, leaves unwanted product residue, causes skin irritation, or exacerbates the inflammatory process.

Those are among the key recommendations that resulted from a modified eDelphi consensus of experts who convened to develop guidelines for LDOM prescribing and monitoring.

“Topical minoxidil is safe, effective, over-the-counter, and FDA-approved to treat the most common form of hair loss, androgenetic alopecia,” one of the study authors, Jennifer Fu, MD, a dermatologist who directs the Hair Disorders Clinic at the University of California, San Francisco, told this news organization following the annual meeting of the American Academy of Dermatology. The results of the expert consensus were presented during a poster session at the meeting. “It is often used off label for other types of hair loss, yet clinicians who treat hair loss know that patient compliance with topical minoxidil can be poor for a variety of reasons,” she said. “Patients report that it can be difficult to apply and complicate hair styling. For many patients, topical minoxidil can be drying or cause irritant or allergic contact reactions.”

Dr. Fu
Dr. Jennifer Fu

LDOM has become a popular alternative for patients for whom topical minoxidil is logistically challenging, irritating, or ineffective, she continued. Although oral minoxidil is no longer a first-line antihypertensive agent given the risk of cardiovascular adverse effects at higher antihypertensive dosing (10-40 mg daily), a growing number of small studies have documented the use of LDOM at doses ranging from 0.25 mg to 5 mg daily as a safe, effective option for various types of hair loss.

“Given the current absence of larger trials on this topic, our research group identified a need for expert-based guidelines for prescribing and monitoring LDOM use in hair loss patients,” Dr. Fu said. “Our goal was to provide clinicians who treat hair loss patients a road map for using LDOM effectively, maximizing hair growth, and minimizing potential cardiovascular adverse effects.”


 

Arriving at a Consensus

The process involved 43 hair loss specialists from 12 countries with an average of 6.29 years of experience with LDOM for hair loss, who participated in a multi-round modified Delphi process. They considered questions that addressed LDOM safety, efficacy, dosing, and monitoring for hair loss, and consensus was reached if at least 70% of participants indicated “agree” or “strongly agree” on a five-point Likert scale. Round 1 consisted of 180 open-ended, multiple-choice, or Likert-scale questions, while round 2 involved 121 Likert-scale questions, round 3 consisted of 16 Likert-scale questions, and round 4 included 11 Likert-scale questions. In all, 94 items achieved Likert-scale consensus.

Specifically, experts on the panel found a direct benefit of LDOM for androgenetic alopecia, age-related patterned thinning, alopecia areata, telogen effluvium, traction alopecia, persistent chemotherapy-induced alopecia, and endocrine therapy-induced alopecia. They found a supportive benefit of LDOM for lichen planopilaris, frontal fibrosing alopecia, central centrifugal alopecia, and fibrosing alopecia in a patterned distribution.

“LDOM can be considered when topical minoxidil is more expensive, logistically challenging, has plateaued in efficacy, results in undesirable product residue/skin irritation,” or exacerbates inflammatory processes (ie eczema, psoriasis), they added.

Contraindications to LDOM listed in the consensus recommendations include hypersensitivity to minoxidil, significant drug-drug interactions with LDOM, a history of pericardial effusion/tamponade, pericarditis, heart failure, pulmonary hypertension associated with mitral stenosis, pheochromocytoma, and pregnancy/breastfeeding. Cited precautions of LDOM use include a history of tachycardia or arrhythmia, hypotension, renal impairment, and being on dialysis.

Dr. Fu and colleagues noted that the earliest time point at which LDOM should be expected to demonstrate efficacy is 3-6 months. “Baseline testing is not routine but may be considered in case of identified precautions,” they wrote. They also noted that LDOM can possibly be co-administered with beta-blockers with a specialty consultation, and with spironolactone in biologic female or transgender female patients with hirsutism, acne, polycystic ovary syndrome (PCOS), and with lower extremity and facial edema.

According to the consensus statement, the most frequently prescribed LDOM dosing regimen in adult females aged 18 years and older includes a starting dose of 1.25 mg daily, with a dosing range between 0.625 mg and 5 mg daily. For adult males, the most frequently prescribed dosing regimen is a starting dose of 2.5 daily, with a dosing range between 1.25 mg and 5 mg daily. The most frequently prescribed LDOM dosing regimen in adolescent females aged 12-17 years is a starting dose of 0.625 mg daily, with a dosing range of 0.625 to 2.5 mg daily. For adolescent males, the recommended regimen is a starting dose of 1.25 mg daily, with a dosing range of 1.25 mg to 5 mg daily.

“We hope that this consensus statement will guide our colleagues who would like to use LDOM to treat hair loss in their adult and adolescent patients,” Dr. Fu told this news organization. “These recommendations may be used to inform clinical practice until additional evidence-based data becomes available.”

She acknowledged certain limitations of the effort, including the fact that the expert panel was underrepresented in treating hair loss in pediatric patients, “and therefore failed to reach consensus on LDOM pediatric use and dosing,” she said. “We encourage our pediatric dermatology colleagues to further research LDOM in pediatric patients.”

In an interview, Shari Lipner, MD, PhD, associate professor of clinical dermatology, Weill Cornell Medicine, New York, who was asked to comment, but was not involved with the work, characterized the consensus as a “helpful, concise reference guide for dermatologists.”

Dr. Lipner
Dr. Shari R. Lipner

The advantages of the study are the standardized methods used, “and the experience of the panel,” she said. “Study limitations include the response rate, which was less than 60%, and the risk of potential side effects are not stratified by age, sex, or comorbidities,” she added.

Dr. Fu disclosed that she is a consultant to Pfizer. Dr. Lipner reported having no relevant disclosures.

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