A Phase 1/2 interventional study of OLX72021 and OLX72021 in Androgenetic Alopecia (AGA), sponsored by Olix Pharmaceuticals, Inc.. Recruiting at 8 sites in 2 countries. Open to male participants aged 18 Years to 59 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2026-10-13.
Sponsored by Olix Pharmaceuticals, Inc. · Phase 1/2, Interventional, and Treatment
This study is designed to evaluate the safety, efficacy, tolerability, and pharmacokinetics (PK) of OLX72021 in medically healthy men with mild to moderate androgenetic alopecia.
This is a Phase 1b/2a double-blind, randomized, placebo-controlled, multiple ascending dose study evaluating the safety, efficacy, and pharmacokinetics (PK) of OLX72021 at a maximum of 2 dose levels. In Phase 1b, evaluation of dose levels will be conducted in a sequential manner with lower dose levels evaluated first in the sequence. Each dose level will be evaluated in a cohort of 12 participants with 9 participants receiving OLX72021 and 3 participants receiving placebo, approximately 24 participants in total. Cohorts may be dosed concurrently in Phase 2a. Each dose level will be evaluated in approximately 134 participants receiving OLX72021 or placebo for Phase 2a.
511 studies on the registry are indexed under Alopecia; 128 are open to participants now.
This study's planned enrollment of 158 is above the median of 50 across 430 interventional studies indexed under Alopecia.
Browse Alopecia studies →Olix Pharmaceuticals, Inc. is the lead sponsor of 4 studies on the registry; 1 is open to participants now.
Counted across the registry records on this site, refreshed daily.
The criteria were revised on the registry on Oct 13, 2026. See what changed
Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.
Exclusion Criteria:
Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Weight in kilograms divided by height in metres squared. Example: 70 kg and 1.75 m gives 70 ÷ (1.75 × 1.75) ≈ 22.9.
What counts as overweight or obesity differs between countries (some use lower cut-offs), so go by the range the study states.
Judged by the study doctor to matter for your health or for the study. It is a doctor’s decision, so ask the study team if you are unsure whether something counts.
The human immunodeficiency virus, which weakens the immune system.
Many studies now accept people whose HIV is controlled on treatment, judged by the viral load and the CD4 count. Check the limits this study sets.
Hepatitis B is a virus that infects the liver. These are separate tests: HBsAg positive usually means a current infection (a recent vaccination can briefly cause it too); total anti-HBc (HBcAb) positive means an infection now or in the past; HBV DNA measures how much virus is in the blood.
Some studies accept a past infection if HBV DNA is undetectable, sometimes with antiviral medicine during the study. Check what this study allows.
Hepatitis C is a virus that infects the liver. An HCV antibody test can stay positive after an infection has cleared (and is occasionally positive without one); an HCV RNA test shows whether the virus is there now.
After treatment, hepatitis C counts as cured when HCV RNA is still undetectable 12 weeks or more after the treatment ended. Studies often accept people cured this way.
A drug or device being studied in a clinical trial.
It may be new, or already approved and being studied for another use, dose or form. Criteria often leave out people who took part in another study of one within a recent period, commonly 30 days or five half-lives.
An allergy, or another reaction of the immune system, to a substance. “Hypersensitivity to the study drug” means a known allergic reaction to it — not every side effect a medicine can have.
Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.
You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.
BMI (body mass index)
Weight in kilograms divided by height in metres squared. Example: 70 kg and 1.75 m gives 70 ÷ (1.75 × 1.75) ≈ 22.9.
What counts as overweight or obesity differs between countries (some use lower cut-offs), so go by the range the study states.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Clinically significant
Judged by the study doctor to matter for your health or for the study. It is a doctor’s decision, so ask the study team if you are unsure whether something counts.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
HIV
The human immunodeficiency virus, which weakens the immune system.
Many studies now accept people whose HIV is controlled on treatment, judged by the viral load and the CD4 count. Check the limits this study sets.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Hepatitis B tests
Hepatitis B is a virus that infects the liver. These are separate tests: HBsAg positive usually means a current infection (a recent vaccination can briefly cause it too); total anti-HBc (HBcAb) positive means an infection now or in the past; HBV DNA measures how much virus is in the blood.
Some studies accept a past infection if HBV DNA is undetectable, sometimes with antiviral medicine during the study. Check what this study allows.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Hepatitis C tests
Hepatitis C is a virus that infects the liver. An HCV antibody test can stay positive after an infection has cleared (and is occasionally positive without one); an HCV RNA test shows whether the virus is there now.
After treatment, hepatitis C counts as cured when HCV RNA is still undetectable 12 weeks or more after the treatment ended. Studies often accept people cured this way.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Investigational drug or device
A drug or device being studied in a clinical trial.
It may be new, or already approved and being studied for another use, dose or form. Criteria often leave out people who took part in another study of one within a recent period, commonly 30 days or five half-lives.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Hypersensitivity
An allergy, or another reaction of the immune system, to a substance. “Hypersensitivity to the study drug” means a known allergic reaction to it — not every side effect a medicine can have.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Informed consent
Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.
You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Phase 1b : 2 dose level cohorts. Participants receive a total of 3 intradermal treatments of OLX72021 or placebo 28 days apart
Drug: OLX72021
Phase 2a: 4 groups (1 group placebo and 3 groups with OLX72021). Participants receive 6 treatments of either placebo or OLX72021 via intradermal injection 28 days apart
Drug: OLX72021 · Drug: Placebo
Low Dose
Mid Dose
High Dose
Placebo
To investigate the incidence, type, severity, and relationship of adverse events (AEs)/serious AEs (SAEs), assessed using the CTCAE Version 5.0 (Phase 1b)
Time frame: From baseline to end of study (Day 85)
To assess local tolerability at intradermal (ID) injection site (Phase 1b)
Time frame: From baseline to end of study (Day 85)
To evaluate the change from baseline in non-vellus Target Area Hair Count (TAHC) at 24 weeks (Day 169) (Phase 2a)
Time frame: Baseline to Day 169
To measure time to plasma Cmax (Tmax) (Phase 1b)
Time frame: From baseline to Day 58
To measure maximum observed plasma concentration (Cmax) (Phase 1b)
Time frame: From baseline to Day 58
To measure area under the plasma concentration-time curve from 0 to time of last quantifiable concentration (AUClast) (Phase 1b)
Time frame: From baseline to Day 58
To measure area under the plasma concentration-time curve from 0 to infinity (AUCinf) (Phase 1b)
Time frame: From baseline to Day 58
To measure apparent terminal elimination half-life (t1/2) (Phase 1b)
Time frame: From baseline to Day 58
To measure total apparent body clearance (CL/F) (Phase 1b)
Time frame: From baseline to Day 58
To measure apparent volume of distribution (Vz/F) (Phase 1b)
Time frame: From baseline to Day 58
To evaluate the change from baseline in non-vellus Target Area Hair Count (TAHC) at Day 29, Day 57, Day 85, Day 113, and Day 141 (Phase 2a)
Time frame: From baseline to Day 141
To investigate the incidence, type, severity, and relationship of adverse events (AEs)/serious AEs (SAEs) (Phase 2a)
Time frame: From baseline to end of study (Day 169)
To investigate the local tolerability at intradermal (ID) injection site (Phase 2a)
Time frame: From baseline to end of study (Day 169)
To evaluate change from baseline at Days 29, 57, 85, 113, 141 and 169 in the Men's Hair Growth Questionnaire© (MHGQ) (Phase 2a)
Time frame: From baseline to end of study (Day 169)
To evaluate change from baseline at Days 1, 29, 57, 85, 113, 141 and 169 in the Canfield Male Pattern Hair Loss - Patient Reported Outcome (CMPHL-PRO) (Phase 2a)
Time frame: From baseline to end of study (Day 169)
To evaluate change from baseline at Days 1, 29, 57, 85, 113, 141 and 169 in the Modified-Skindex-Mini (Phase 2a)
Time frame: From baseline to end of study (Day 169)
To evaluate change from baseline at Days 29, 57, 85, 113, 141 and 169 in the Investigator Global Assessment (IGA) (Phase 2a)
Time frame: From baseline to end of study (Day 169)
Plan to share: No
No publications or documents are linked to this record.
Started Dec 2025 (actual). Primary completion is estimated for Sep 2027, 21 months after the start.
Since we started tracking on Sep 25, 2026, the dates moved once, on Oct 13, 2026: primary completion Apr 2026 → Sep 2027 and completion Mar 2027 → Sep 2027.
Earlier changes are on the record history on ClinicalTrials.gov ↗
How these figures are worked out, and which studies are left out of them.
From the registry record's own update history. This site started tracking changes on Sep 25, 2026; for anything earlier, see the record history on ClinicalTrials.gov ↗
Eligibility is decided by the study team. Share this record with your doctor or contact the team directly.
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Olix Pharmaceuticals, Inc.