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Pharmacokinetics of two different formulations of finasteride (topical and oral) in male volunteers with androgeneic alopecia

Pharmacokinetics of topical (0.25% solution bid) and oral (1 mg od) finasteride after single and 7 days multiple dose in male volunteers with androgeneic alopecia

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
ISRCTN
Registry ID
ISRCTN64760291
Enrollment
24
Registered
2013-08-08
Start date
2011-08-22
Completion date
Unknown
Last updated
2015-01-13

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Androgeneic alopecia Skin and Connective Tissue Diseases Androgenic alopecia, unspecified

Interventions

1. First group: 7-day treatment of the scalp skin area with a new topical finasteride formulation (0.25%) b.i.d. (every 12 hours) 2. Second group: 7-day treatment with finasteride oral formulation 1 m

Sponsors

Polichem S.A. (Switzerland)
Lead Sponsor

Eligibility

Sex/Gender
Male

Inclusion criteria

Inclusion criteria: 1. Sex: male 2. Age: 18-65 year-old inclusive 3. Androgeneic alopecia: recession of the frontal hairline and hair loss in the vertex or crown or loss of hair over the frontal and vertex scalp regions, corresponding to at least stage 2 of the Hamilton-Norwood scale 4. Body Mass Index (BMI): 18 < BMI < 30 kg/m2; 5. Vital signs: Systolic Blood Pressure (SBP) 100-139 mmHg, Diastolic Blood Pressure (DBP) 50-89 mmHg, Heart Rate (HR) 50-90 bpm, measured after 5 min of rest in the sitting position 6. Full comprehension: ability to comprehend the full nature and purpose of the study, including possible risks and side effects; ability to co-operate with the investigator and to comply with the requirements of the entire study 7. Informed Consent: signed written informed consent prior to inclusion in the study

Exclusion criteria

Exclusion criteria: 1. Electrocardiogram (ECG) (12-leads) (supine position): clinically relevant abnormalities 2. Physical findings: clinically relevant abnormal physical findings which could interfere with the objectives of the study; in particular, skin damage such as abrasion, hyperkeratosis or any abnormal findings in the scalp 3. Laboratory analyses: clinically relevant abnormal laboratory values indicative of physical illness 4. Allergy: ascertained or presumptive hypersensitivity to the active principle and/or formulations' ingredients; history of anaphylaxis to drugs or allergic reactions in general, which the Investigator considers may affect the outcome of the study 5. Diseases: relevant history of renal, hepatic, gastrointestinal, cardiovascular, respiratory, skin, haematological, endocrine or neurological diseases, that may interfere with the aim of the study 6. Medications: medications, including over the counter (OTC) drugs, for 2 weeks before the start of the study 7. Investigative drug trials: participation in the evaluation of any drug for 3 months before this study, calculated from the first day of the month following the last visit of the previous study 8. Blood donation: blood donations for 3 months before this study 9. Drug, alcohol, caffeine, tobacco: history of drug, alcohol [>2 drinks/day], caffeine (>5 cups coffee/tea/day) or tobacco abuse (>10 cigarettes/day) 10. Abnormal diets (3500 kcal/day) or substantial changes in eating habits in the 4 weeks before this study

Design outcomes

Primary

MeasureTime frame
Plasma levels of finasteride after single and multiple dose administration of topical or oral finasteride formulation measured using a validated UPLC-MS/MS method. Time points: 1. Before the first drug administration 2. 0.5, 1, 2, 3, 4, 5, 6, 8, 10, 12, 16, 20, 24 h after the first dose 3. Before last drug administration 4. 0.5, 1, 2, 3, 4, 5, 6, 8, 10, 12, 24 and 36 h after the last dose.

Secondary

MeasureTime frame
1. Plasma levels of testosterone and dihydrotestosterone after single and multiple dose administration of topical or oral finasteride formulation determined using a validated LC-MS/MS method. Time points: 1. Before the first drug administration 2. 6, 12 and 24 h after the first dose 3. Before last drug administration 4. 6, 12, 24 and 36 h after the last dose 2. Adverse events (AEs), vital signs (BP, HR), ECG, physical examination, laboratory parameters measured at screening visit and at the end of the trial (final visit).

Countries

Switzerland

Outcome results

None listed

Source: ISRCTN (via WHO ICTRP) · Data processed: Feb 4, 2026