Comparing spironolactone and doxycycline for treating acne

A Randomized, Double-Blind, Multi-Center Comparative Effectiveness Study of Spironolactone Versus Doxycycline Hyclate for the Treatment of Acne in Women

Phase 4 Interventional University of Pennsylvania · NCT04582383

This study tests whether spironolactone works better than doxycycline for treating moderate to severe acne in women aged 16 to 40.

Quick facts

PhasePhase 4
Study typeInterventional
Enrollment350 (estimated)
Ages16 Years to 40 Years
SexFemale
SponsorUniversity of Pennsylvania Academic / other
Locations18 sites (Fort Smith, Arkansas and 17 other locations)
Trial IDNCT04582383 on ClinicalTrials.gov

What this trial studies

This clinical trial evaluates the effectiveness of spironolactone compared to doxycycline in treating moderate to severe acne in women aged 16-40. Acne is a common condition that can significantly impact quality of life, and this study aims to explore hormonal therapies as an alternative to long-term antibiotic use. Participants will be assessed based on their acne severity and response to treatment over the course of the trial. The goal is to determine which medication provides better outcomes for patients suffering from acne.

Who should consider this trial

Good fit: Ideal candidates for this study are women aged 16-40 with moderate to severe acne characterized by at least 10 inflammatory lesions.

Not a fit: Patients who are pregnant, have certain medical conditions, or have recently undergone specific acne treatments may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could provide a more effective treatment option for women with moderate to severe acne, potentially reducing reliance on long-term antibiotics.

How similar studies have performed: Other studies have explored hormonal treatments for acne, but this specific comparison of spironolactone and doxycycline is novel.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Female sex assigned at birth
* Age 16-40 years old
* Acne defined as at least 10 inflammatory papules or pustules and an Investigator's Global Assessment (IGA) score of at least 2 as measured by the Comprehensive Acne Severity Scale
* Not currently pregnant or planning to become pregnant

Exclusion Criteria:

* Pregnancy
* Heart disease
* Renal disease
* Liver disease
* Orthostatic hypotension
* Addison's disease
* History of hyperkalemia
* Allergy to tetracycline-class antibiotic
* Allergy to spironolactone
* Concomitant use of medications known to interact with spironolactone or doxycycline or that may increase the risk for hyperkalemia, including angiotensin-converting enzyme inhibitors, angiotensin receptor blockers, eplerenone, nonsteroidal anti-inflammatory drugs, and digoxin.
* Treatment with spironolactone, an oral antibiotic, laser, photodynamic therapy, or chemical peel within the past 4 weeks
* Treatment with isotretinoin within the past 3 months
* Sebacia laser treatment within the past 12 months

Where this trial is running

Fort Smith, Arkansas and 17 other locations

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Acnespironolactonedoxycycline
Last reviewed 2026-06-09 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.