- Conditions
- Gonorrhea, Chlamydia, Syphilis, Sexually Transmitted Infections (STIs)
- Interventions
- Doxycycline hyclate delayed released 200 mg, Doxycycline hyclate delayed released 200 mg weekly, Per standard of care with quarterly STI testing/treatment and sexual health counseling
- Drug · Other
- Lead sponsor
- Westat
- Other
- Eligibility
- 13 Years to 29 Years · Female only
- Enrollment
- 760 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2026 – 2028
- U.S. locations
- 13
- States / cities
- Los Angeles, California • San Francisco, California • Washington D.C., District of Columbia + 10 more
Search Results
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Showing 1–19
of 19
matching trials from the live ClinicalTrials.gov search.
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- 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
- 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
- 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
- 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
- Sexually Transmitted Diseases
- Interventions
- Doxycycline
- Drug
- Lead sponsor
- Emory University
- Other
- Eligibility
- 18 Years to 59 Years
- Enrollment
- 45 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2023 – 2024
- U.S. locations
- 1
- States / cities
- Atlanta, Georgia
- Conditions
- Adult Diffuse Large B-Cell Lymphoma, Mantle Cell Lymphoma Recurrent, Lymphoma, Follicular, Marginal Zone B-Cell Lymphoma, Malignant Lymphoma - Lymphoplasmacytic, Waldenstrom Macroglobulinemia, Small Lymphocytic Lymphoma, Chronic Lymphocytic Leukemia (CLL), T-Cell Lymphoma
- Interventions
- Doxycycline
- Drug
- Lead sponsor
- University of Rochester
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 7 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2014 – 2015
- U.S. locations
- 1
- States / cities
- Rochester, New York
- Conditions
- Polyp of Nasal Sinus
- Interventions
- Doxycycline, methylprednisolone, nasal saline spray, Flonase, sugar pill
- Drug
- Lead sponsor
- Icahn School of Medicine at Mount Sinai
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 49 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2014 – 2016
- U.S. locations
- 1
- States / cities
- New York, New York
- Conditions
- COVID-19
- Interventions
- Hydroxychloroquine, Azithromycin, Zinc Sulfate, Doxycycline
- Drug
- Lead sponsor
- St. Francis Hospital, New York
- Other
- Eligibility
- 30 Years and older
- Enrollment
- 18 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2020
- U.S. locations
- 1
- States / cities
- Roslyn, New York
- Conditions
- CoVid 19 Positive
- Interventions
- Hydroxychloroquine, Azithromycin, Hydroxychloroquine, Doxycycline, Hydroxychloroquine, Clindamycin, Hydroxychloroquine, Clindamycin, Primaquine - low dose., Hydroxychloroquine, Clindamycin, Primaquine - high dose., Remdesivir, Tocilizumab, Methylprednisolone, Interferon-Alpha2B, Losartan, Convalescent Serum
- Drug
- Lead sponsor
- The Camelot Foundation
- Other
- Eligibility
- Not listed
- Enrollment
- 1,800 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2020
- U.S. locations
- 1
- States / cities
- Los Angeles, California
- Conditions
- Gonorrhea, Chlamydia, Syphilis
- Interventions
- Doxycycline Hyclate Delayed-Release 200 mg
- Drug
- Lead sponsor
- University of California, San Francisco
- Other
- Eligibility
- 18 Years and older · Male only
- Enrollment
- 641 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2019 – 2023
- U.S. locations
- 3
- States / cities
- San Francisco, California • Seattle, Washington
- Conditions
- First Trimester Abortion
- Interventions
- Azithromycin, Doxycycline, Metronidazole, Placebo
- Drug
- Lead sponsor
- Medstar Health Research Institute
- Other
- Eligibility
- 18 Years and older · Female only
- Enrollment
- 181 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2016 – 2017
- U.S. locations
- 2
- States / cities
- Washington D.C., District of Columbia • Silver Spring, Maryland
- Conditions
- Sexually Transmitted Diseases
- Interventions
- Doxycycline, Biktarvy
- Drug
- Lead sponsor
- Emory University
- Other
- Eligibility
- 18 Years to 59 Years
- Enrollment
- 20 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2021 – 2022
- U.S. locations
- 1
- States / cities
- Atlanta, Georgia
- Conditions
- Melanoma
- Interventions
- Doxycycline, Ipilimumab, Temozolomide
- Drug
- Lead sponsor
- M.D. Anderson Cancer Center
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 12 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2012 – 2015
- U.S. locations
- 1
- States / cities
- Houston, Texas
- Conditions
- Malignant Neoplasm of Breast, Malignant Neoplasms of Digestive Organs, Malignant Neoplasms of Eye Brain and Other Parts of Central Nervous System, Malignant Neoplasms of Female Genital Organs, Malignant Neoplasms of Ill-defined Secondary and Unspecified Sites, Malignant Neoplasms of Independent (Primary) Multiple Sites, Malignant Neoplasms of Lip Oral Cavity and Pharynx, Malignant Neoplasms of Male Genital Organs, Malignant Neoplasms of Mesothelial and Soft Tissue, Malignant Neoplasms of Respiratory and Intrathoracic Organs, Malignant Neoplasms of Thyroid and Other Endocrine Glands, Malignant Neoplasms of Urinary Tract
- Interventions
- Pembrolizumab, Clostridium Novyi-NT, Doxycycline
- Drug · Biological
- Lead sponsor
- M.D. Anderson Cancer Center
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 18 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2018 – 2026
- U.S. locations
- 1
- States / cities
- Houston, Texas
- Conditions
- Sexually Transmitted Infections (STI)
- Interventions
- Doxycycline monohydrate 200 mg, Observation
- Drug · Other
- Lead sponsor
- Emory University
- Other
- Eligibility
- 18 Years and older · Male only
- Enrollment
- 200 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2025 – 2029
- U.S. locations
- 2
- States / cities
- Atlanta, Georgia
- Conditions
- Covid19
- Interventions
- Ivermectin Tablets, Doxycycline Tablets, Placebo
- Drug
- Lead sponsor
- Max Health, Subsero Health
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 150 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2020 – 2022
- U.S. locations
- 1
- States / cities
- Sarasota, Florida
- Conditions
- Urethritis
- Interventions
- Doxycycline, Placebo, Tinidazole, Azithromycin
- Drug · Other
- Lead sponsor
- National Institute of Allergy and Infectious Diseases (NIAID)
- NIH
- Eligibility
- 16 Years to 45 Years · Male only
- Enrollment
- 305 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2006 – 2009
- U.S. locations
- 4
- States / cities
- Birmingham, Alabama • New Orleans, Louisiana • Baltimore, Maryland + 1 more
- Conditions
- Urogential Chlamydia Trachomatis Infection
- Interventions
- Doxycyline Hyclate tablet, Vibramycin (doxycyline hyclate) capsule
- Drug
- Lead sponsor
- Warner Chilcott
- Industry
- Eligibility
- 19 Years to 45 Years
- Enrollment
- 495 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2010
- U.S. locations
- 43
- States / cities
- Birmingham, Alabama • Foley, Alabama • Tucson, Arizona + 38 more