Minoxidil Response Testing in Males With Androgenetic Alopecia
Public ClinicalTrials.gov record NCT02198261. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.
Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.
Brief summary
Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.
Topical minoxidil is the most common drug used for the treatment of AGA in men. While topical minoxidil exhibits a good safety profile, the efficacy in the overall population remains relatively low i.e., 30-40% re-grow hair. To observe significant improvement in hair growth, minoxidil is typically used twice daily for a period of at least 16 weeks. Due to the significant time commitment and low response rate, a diagnostic test to identify non-responders prior to initiating therapy would be advantageous. Minoxidil is converted in the scalp to its active form, minoxidil sulfate, by the sulfotransferase enzyme SULT1A1. The enzyme expression is variable among individuals. We have demonstrated in two prior feasibility studies that the SULT1A1 enzyme activity in plucked hair follicles correlates with minoxidil response in the treatment of AGA and thus can server as a predictive biomarker. Consequently, we developed a minoxidil response in-vitro diagnostic kit intended to identify non-responders prior to initiating therapy with 5% topical minoxidil foam. The primary purpose of this study is to evaluate the clinical validity of the minoxidil response in-vitro diagnostic kit.
Study identification
- NCT ID
- NCT02198261
- Recruitment status
- Completed
- Study type
- Observational
- Phase
- Not listed
- Enrollment
- 300 participants
Conditions and interventions
Conditions
Eligibility (public fields only)
- Age range
- 18 Years to 49 Years
- Sex
- Male
- Healthy volunteers
- Healthy volunteers not accepted
This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.
Study timeline
- Start date
- Jun 30, 2014
- Primary completion
- Sep 30, 2018
- Completion
- Sep 30, 2018
- Last update posted
- Oct 4, 2018
2014 – 2018
United States locations
- U.S. sites
- 2
- U.S. states
- 2
- U.S. cities
- 2
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| Physicians Hair Institute | Tucson | Arizona | 85719 | — |
| Tennessee Clinical Research Center | Nashville | Tennessee | 37215 | — |
Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.
Non-U.S. locations
This page focuses on the U.S. directory. The official record also lists 3 non-U.S. sites.
About this trial record page
- What this page shows
- Public field values for ClinicalTrials.gov record NCT02198261, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
- What this page does not do
- No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
- Where the data comes from
- Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
- Last refresh
- Last update posted Oct 4, 2018 · Synced Sep 6, 2026
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Open the official record
The complete protocol, eligibility criteria, and contact information for NCT02198261 live on ClinicalTrials.gov.