- Conditions
- Cystic Fibrosis
- Interventions
- Doxycycline, placebo
- Drug · Other
- Lead sponsor
- University of Alabama at Birmingham
- Other
- Eligibility
- 19 Years and older
- Enrollment
- 40 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2008 – 2012
- U.S. locations
- 1
- States / cities
- Birmingham, Alabama
Search Results
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Search by query text, NCT ID, condition, intervention, sponsor, city, state, recruitment status, phase, study type, healthy volunteer eligibility, sex, or age. Results are retrieved from ClinicalTrials.gov and synchronized into the directory. Search pages remain noindex by default.
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Showing 25–48
of 24
matching trials from the live ClinicalTrials.gov search.
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- Conditions
- Sexually Transmitted Diseases, Bacterial
- Interventions
- Doxycycline Pill
- Drug
- Lead sponsor
- University of California, San Francisco
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 48 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2024 – 2028
- U.S. locations
- 1
- States / cities
- San Francisco, California
- Conditions
- Amyloidosis; Heart (Manifestation), Senile Cardiac Amyloidosis
- Interventions
- Tauroursodeoxycholic Acid and Doxycycline
- Drug
- Lead sponsor
- Brigham and Women's Hospital
- Other
- Eligibility
- 18 Years to 90 Years
- Enrollment
- 40 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2013 – 2015
- U.S. locations
- 1
- States / cities
- Boston, Massachusetts
- Conditions
- Osteomyelitis
- Interventions
- oral antibiotics, intravenous antibiotics
- Drug · Procedure
- Lead sponsor
- Julio Ramirez
- Other
- Eligibility
- 18 Years to 100 Years
- Enrollment
- 11 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2014 – 2018
- U.S. locations
- 1
- States / cities
- Louisville, Kentucky
- Conditions
- Sexually Transmitted Infection
- Interventions
- Single-Dose PK Phase - DR Group, Single-Dose PK Phase - IR Group, Multi-Dose PK Phase - Daily Group, Multi-Dose PK Phase - Intermittent Group
- Drug
- Lead sponsor
- HIV Prevention Trials Network
- Network
- Eligibility
- 18 Years to 65 Years
- Enrollment
- 16 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2026 – 2027
- U.S. locations
- 1
- States / cities
- Chapel Hill, North Carolina
- Conditions
- Acne
- Interventions
- Doxycycline Anhydrous 40 MG, Adapalene/Benzoyl Peroxide Gel 0.3-2.5%
- Drug
- Lead sponsor
- Derm Research, PLLC
- Other
- Eligibility
- 12 Years and older
- Enrollment
- 22 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2018 – 2019
- U.S. locations
- 1
- States / cities
- Louisville, Kentucky
- Conditions
- Cirrhosis, Spontaneous Bacterial Peritonitis
- Interventions
- doxycycline
- Drug
- Lead sponsor
- Methodist Health System
- Other
- Eligibility
- 18 Years and older · Female only
- Enrollment
- 841 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2019 – 2020
- U.S. locations
- 1
- States / cities
- Dallas, Texas
- Conditions
- Syphilis
- Interventions
- Azithromycin, Benzathine Penicillin, Doxycycline
- Drug
- Lead sponsor
- National Institute of Allergy and Infectious Diseases (NIAID)
- NIH
- Eligibility
- 18 Years to 55 Years
- Enrollment
- 593 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2000 – 2009
- U.S. locations
- 7
- States / cities
- Birmingham, Alabama • Indianapolis, Indiana • New Orleans, Louisiana + 3 more
- Conditions
- Ocular Rosacea, Antimicrobial Resistance
- Interventions
- Doxycycline 40 MG ( 20mg twice daily), Doxycycline 200 MG ( 100 mg twice daily), Placebo
- Drug
- Lead sponsor
- University of California, San Francisco
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 46 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2023 – 2025
- U.S. locations
- 1
- States / cities
- San Francisco, California
- 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
- Conditions
- Seroma
- Interventions
- doxycycline, No intervention
- Drug · Other
- Lead sponsor
- Northwell Health
- Other
- Eligibility
- 18 Years to 85 Years
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2010 – 2012
- U.S. locations
- 1
- States / cities
- Staten Island, New York
- Conditions
- Healthy Volunteers, Fungal Infections, Bacterial Infections
- Interventions
- Doxycycline, Voriconazole
- Drug
- Lead sponsor
- National Institute of Arthritis and Musculoskeletal and Skin Diseases (NIAMS)
- NIH
- Eligibility
- 8 Years to 100 Years
- Enrollment
- 62 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2007 – 2011
- U.S. locations
- 1
- States / cities
- Bethesda, Maryland
- Conditions
- Severe Acne Vulgaris
- Interventions
- Adapalene BPO Gel associated with Doxycyline Hyclate, Vehicle Gel associated with Doxycycline Hyclate
- Drug
- Lead sponsor
- Galderma R&D
- Industry
- Eligibility
- 12 Years to 35 Years
- Enrollment
- 459 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2008 – 2009
- U.S. locations
- 28
- States / cities
- Oceanside, California • San Diego, California • Denver, Colorado + 25 more
- Conditions
- HIV, STI
- Interventions
- PrEP discontinuation intervention, Offering of on-demand oral PrEP, Offering of STI PEP, Injectable PrEP
- Behavioral · Drug
- Lead sponsor
- Emory University
- Other
- Eligibility
- 18 Years to 45 Years · Male only
- Enrollment
- 240 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2021 – 2025
- U.S. locations
- 1
- States / cities
- Atlanta, Georgia
- Conditions
- Periprosthetic Infection, Oral Antibiotics, Revision Total Shoulder Arthroplasty
- Interventions
- Doxycycline 100 MG Oral Tablet
- Drug
- Lead sponsor
- Rothman Institute Orthopaedics
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 100 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2019 – 2021
- U.S. locations
- 1
- States / cities
- Philadelphia, Pennsylvania
- Conditions
- Acne Vulgaris
- Interventions
- Adapalene 0.3% / benzoyl peroxide 2.5% emulsion gel, Oral doxycycline hyclate
- Drug
- Lead sponsor
- Galderma R&D
- Industry
- Eligibility
- 12 Years and older
- Enrollment
- 186 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2016 – 2017
- U.S. locations
- 1
- States / cities
- Fort Worth, Texas
- Conditions
- Acne Vulgaris
- Interventions
- Trifarotene cream, Doxycycline hyclate, Trifarotene Vehicle, Doxycycline Placebo
- Drug
- Lead sponsor
- Galderma R&D
- Industry
- Eligibility
- 12 Years and older
- Enrollment
- 202 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2020 – 2021
- U.S. locations
- 25
- States / cities
- Fort Smith, Arkansas • Hot Springs, Arkansas • Rogers, Arkansas + 21 more
- Conditions
- Infections Joint Prosthetic, Overweight or Obesity, MSSA Colonization, MRSA, Chronic Kidney Diseases, Diabetes, Autoimmune Diseases, Inflammatory Disease, Tobacco Use
- Interventions
- Cephalexin, Doxycycline, Cefadroxil
- Drug
- Lead sponsor
- Mayo Clinic
- Other
- Eligibility
- 18 Years to 99 Years
- Enrollment
- 4,618 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2020 – 2028
- U.S. locations
- 2
- States / cities
- Iowa City, Iowa • Rochester, Minnesota
- Conditions
- Acne Vulgaris, Pediatrics
- Interventions
- Doxycycline Hyclate
- Drug
- Lead sponsor
- Michigan State University
- Other
- Eligibility
- 13 Years to 17 Years
- Enrollment
- 22 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2020 – 2021
- U.S. locations
- 1
- States / cities
- Lansing, Michigan
- Conditions
- Lymphoma, T-Cell, Cutaneous
- Interventions
- Doxycycline, Imiquimod
- Drug
- Lead sponsor
- James J. Peters Veterans Affairs Medical Center
- Federal
- Eligibility
- 30 Years to 89 Years
- Enrollment
- 8 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2018 – 2020
- U.S. locations
- 1
- States / cities
- The Bronx, New York
- 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
- Conditions
- Acne Vulgaris
- Interventions
- Sarecycline, Doxycycline
- Drug
- Lead sponsor
- Integrative Skin Science and Research
- Industry
- Eligibility
- 9 Years and older
- Enrollment
- 30 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2026 – 2027
- U.S. locations
- 1
- States / cities
- Sacramento, California
- Conditions
- Acne Rosacea
- Interventions
- doxycycline hyclate 20 mg twice daily
- Drug
- Lead sponsor
- CollaGenex Pharmaceuticals
- Industry
- Eligibility
- 18 Years and older
- Enrollment
- 150 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- Started 2002
- U.S. locations
- 7
- States / cities
- Gainesville, Florida • Miami, Florida • West Palm Beach, Florida + 4 more
- Conditions
- Diabetic Retinopathy
- Interventions
- doxycycline monohydrate, Placebo
- Drug
- Lead sponsor
- Thomas Gardner
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 33 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2009 – 2012
- U.S. locations
- 1
- States / cities
- Hershey, Pennsylvania