Independent directory Public ClinicalTrials.gov records United States
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ClinicalTrials.gov public records Last synced Sep 29, 2026, 11:13 PM EDT

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Showing 25–35 of 11 matching trials from the live ClinicalTrials.gov search.
Conditions
Primary Systemic Amyloidosis
Interventions
Doxycycline
Drug
Lead sponsor
Medical College of Wisconsin
Other
Eligibility
18 Years and older
Enrollment
32 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2020
U.S. locations
1
States / cities
Milwaukee, Wisconsin
Active, not recruiting Early Phase 1 Interventional Accepts healthy volunteers

Analysis of the Microbiome in Rosacea

NCT04108897
Conditions
Rosacea
Interventions
Doxycycline, Ivermectin Topical
Drug
Lead sponsor
Johns Hopkins University
Other
Eligibility
18 Years to 99 Years
Enrollment
150 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2027
U.S. locations
1
States / cities
Baltimore, Maryland
Terminated Phase 3 Interventional Results available

CleanUP IPF for the Pulmonary Trials Cooperative

NCT02759120
Conditions
Idiopathic Pulmonary Fibrosis
Interventions
Antimicrobial therapy: Co-trimoxazole or Doxycycline, No Intervention: Standard of Care
Drug · Other
Lead sponsor
Weill Medical College of Cornell University
Other
Eligibility
40 Years and older
Enrollment
513 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2020
U.S. locations
31
States / cities
Birmingham, Alabama • Tucson, Arizona • Sacramento, California + 22 more
Conditions
Healthy
Interventions
Doxycycline Monohydrate Tablets 100 mg, Adoxa Tablets 100 mg
Drug
Lead sponsor
Mylan Pharmaceuticals Inc
Industry
Eligibility
18 Years and older
Enrollment
36 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2005
U.S. locations
1
States / cities
Morgantown, West Virginia
Terminated Phase 1Phase 2 Interventional Results available

Lefamulin for M. Genitalium Treatment Failures

NCT05111002
Conditions
Mycoplasma Genitalium Infection
Interventions
Lefamulin, Doxycycline
Drug
Lead sponsor
University of Washington
Other
Eligibility
18 Years and older
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2023
U.S. locations
1
States / cities
Seattle, Washington
Active, not recruiting Phase 4 Interventional Accepts healthy volunteers

Comparative Effectiveness Study of Spironolactone Versus Doxycycline for Acne

NCT04582383
Conditions
Acne
Interventions
Spironolactone, Doxycycline Hyclate
Drug
Lead sponsor
University of Pennsylvania
Other
Eligibility
16 Years to 40 Years · Female only
Enrollment
350 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2027
U.S. locations
18
States / cities
Fort Smith, Arkansas • San Francisco, California • Sherman Oaks, California + 13 more
Conditions
Urethritis
Interventions
Azithromycin, Doxycycline
Drug
Lead sponsor
University of Washington
Other
Eligibility
16 Years and older · Male only
Enrollment
606 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2011
U.S. locations
1
States / cities
Seattle, Washington
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Daily Doxycycline to Inform Sexually Transmitted Infection Prophylaxis Regimens

NCT06545656
Conditions
Sexually Transmitted Infection
Interventions
Doxycycline
Drug
Lead sponsor
Emory University
Other
Eligibility
18 Years to 59 Years
Enrollment
24 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2025
U.S. locations
1
States / cities
Atlanta, Georgia
Conditions
Syphilis
Interventions
Doxycycline 200mg daily for 14 days
Drug
Lead sponsor
University of Washington
Other
Eligibility
18 Years and older
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2026
U.S. locations
1
States / cities
Seattle, Washington
Completed Phase 3 Interventional Accepts healthy volunteers Results available

Effect of a Commonly Used Antibiotic, Doxycycline, in Women With Polycystic Ovarian Syndrome

NCT01788215
Conditions
Polycystic Ovarian Syndrome (PCOS), Irregular Menstrual Cycles, Androgen Excess
Interventions
doxycycline, Sugar Pill
Drug · Other
Lead sponsor
University of Rochester
Other
Eligibility
18 Years to 40 Years · Female only
Enrollment
10 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2014
U.S. locations
1
States / cities
Rochester, New York
Conditions
Bacterial Corneal Ulcer
Interventions
ProProKera Plus®
Device
Lead sponsor
University of Arkansas
Other
Eligibility
18 Years and older
Enrollment
3 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2022
U.S. locations
1
States / cities
Little Rock, Arkansas