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ClinicalTrials.gov public records Last synced Oct 30, 2026, 4:25 PM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Showing 121–144 of 179 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: DOXY Clear all
Completed Not applicable Interventional

Periodontal Care and Glycemic Control in Diabetes

NCT00012688
View directory record Official record
Conditions
Diabetes Mellitus, Poor Glycemic Control, Peridontal Disease
Interventions
Doxycycline HCI 10mg po for 2 weeks, Ultrasonic scaling with 0.12% chlorhexidine gluconate
Drug · Procedure
Lead sponsor
US Department of Veterans Affairs
Federal
Eligibility
Not listed
Enrollment
300 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Ends 2003
U.S. locations
1
States / cities
Bedford, Massachusetts
Source: ClinicalTrials.gov public record
Updated Apr 7, 2015 · Synced Oct 30, 2026, 4:25 PM EDT
Completed No phase listed Observational

Doxycycline for the Prevention of Spontaneous Bacterial Peritonitis

NCT04153604
View directory record Official record
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
Source: ClinicalTrials.gov public record
Updated Mar 20, 2026 · Synced Oct 30, 2026, 4:25 PM EDT
Completed Phase 4 Interventional

Use of a Novel Diet (UC DIET) for Treatment of Mild to Moderate Active Pediatric Ulcerative Colitis

NCT02345733
View directory record Official record
Conditions
Ulcerative Colitis (UC)
Interventions
Ulcerative Colitis Diet, Antibiotic cocktail
Other · Drug
Lead sponsor
Prof. Arie Levine
Government
Eligibility
8 Years to 19 Years
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2021
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jun 1, 2022 · Synced Oct 30, 2026, 4:25 PM EDT
Completed Phase 3 Interventional Results available

Adapalene-BPO Gel Associated With Doxycycline Hyclate 100 mg in the Treatment of Severe Acne Vulgaris

NCT00688064
View directory record Official record
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
Source: ClinicalTrials.gov public record
Updated Feb 18, 2021 · Synced Oct 30, 2026, 4:25 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Oral Contraceptives and Subantimicrobial Doxycycline: Effect on Endometrial Matrix Metalloproteinases

NCT01469585
View directory record Official record
Conditions
Breakthrough Bleeding
Interventions
Doxycycline
Drug
Lead sponsor
University of Hawaii
Other
Eligibility
18 Years to 45 Years · Female only
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2012
U.S. locations
1
States / cities
Honolulu, Hawaii
Source: ClinicalTrials.gov public record
Updated Dec 17, 2020 · Synced Oct 30, 2026, 4:25 PM EDT
Completed Phase 1 Interventional

Influence of MMP on Brain AVM Hemorrhage

NCT00783523
View directory record Official record
Conditions
Arteriovenous Malformations, Cavernous Angiomas, Brain Aneurysms
Interventions
Doxycycline or Placebo
Drug
Lead sponsor
University of California, San Francisco
Other
Eligibility
13 Years and older
Enrollment
33 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2010
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Aug 9, 2013 · Synced Oct 30, 2026, 4:25 PM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Daily Doxycycline to Inform Sexually Transmitted Infection Prophylaxis Regimens

NCT06545656
View directory record Official record
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
Source: ClinicalTrials.gov public record
Updated May 1, 2026 · Synced Oct 30, 2026, 4:25 PM EDT
Active, not recruiting Phase 1Phase 2 Interventional

Doxycycline in Cutaneous Schwannoma (NF2)

NCT05521048
View directory record Official record
Conditions
Neurofibromatosis Type 2
Interventions
Doxycycline Injection [Doxy]
Drug
Lead sponsor
Massachusetts Eye and Ear Infirmary
Other
Eligibility
8 Years and older
Enrollment
19 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2027
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Oct 16, 2026 · Synced Oct 30, 2026, 4:25 PM EDT
Completed No phase listed Observational

Topical Antisepsis in Head and Neck Cancer Surgery

NCT04721626
View directory record Official record
Conditions
Head and Neck Cancer
Interventions
Chlorhexidine Gluconate, Povidone-iodine, Tetracycline Ointment
Drug
Lead sponsor
Medical College of Wisconsin
Other
Eligibility
18 Years and older
Enrollment
25 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021
U.S. locations
1
States / cities
Milwaukee, Wisconsin
Source: ClinicalTrials.gov public record
Updated Feb 7, 2022 · Synced Oct 30, 2026, 4:25 PM EDT
Completed Phase 3 Interventional Results available

A Randomized, Double-Blind Study to Assess the Safety, Efficacy and Tolerability of Oral DFD-29 Capsules for the Treatment of Rosacea.

NCT05296629
View directory record Official record
Conditions
Papulopustular Rosacea
Interventions
DFD-29, Doxycycline, Placebo
Drug
Lead sponsor
Journey Medical Corporation
Industry
Eligibility
18 Years and older
Enrollment
323 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2023
U.S. locations
27
States / cities
Rogers, Arkansas • Cerritos, California • Fremont, California + 21 more
Source: ClinicalTrials.gov public record
Updated Dec 3, 2024 · Synced Oct 30, 2026, 4:25 PM EDT
Active, not recruiting Early Phase 1 Interventional

Collaborative Urological Prosthetics Investigation Directive Research Group

NCT05100654
View directory record Official record
Conditions
Erectile Dysfunction, Penile Prosthesis Infection
Interventions
Doxycycline, Ciprofloxacin, Augmentin, Bactrim
Drug
Lead sponsor
University of Chicago
Other
Eligibility
35 Years to 90 Years · Male only
Enrollment
800 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2028
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Feb 2, 2026 · Synced Oct 30, 2026, 4:25 PM EDT
Completed Phase 2 Interventional Results available

The Importance of Anti-anaerobic Therapy for Acute Pelvic Inflammatory Disease (PID)

NCT01160640
View directory record Official record
Conditions
Pelvic Inflammatory Disease
Interventions
Ceftriaxone, Doxycycline, Metronidazole, Placebo Oral Capsule
Drug
Lead sponsor
Harold Wiesenfeld
Other
Eligibility
15 Years to 40 Years · Female only
Enrollment
233 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2015
U.S. locations
3
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jul 10, 2018 · Synced Oct 30, 2026, 4:25 PM EDT
Completed Not applicable Interventional Results available

Doxycycline for COPD in HIV-Infected Patients

NCT01744093
View directory record Official record
Conditions
HIV, Chronic Obstructive Pulmonary Disease (COPD), Emphysema
Interventions
Doxycycline, Placebo (sugar pill)
Drug
Lead sponsor
Weill Medical College of Cornell University
Other
Eligibility
18 Years to 85 Years
Enrollment
61 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2020
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jul 21, 2022 · Synced Oct 30, 2026, 4:25 PM EDT
Completed Phase 1 Interventional

A Trial of Doxycycline in Renal Disease

NCT02753426
View directory record Official record
Conditions
Chronic Kidney Disease, Cardiorenal Syndrome
Interventions
Doxycycline, Placebo (for Doxycycline)
Drug
Lead sponsor
University of California, San Francisco
Other
Eligibility
18 Years and older
Enrollment
11 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2018
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Feb 6, 2020 · Synced Oct 30, 2026, 4:25 PM EDT
Completed Phase 2 Interventional

Short and Long Term Outcomes of Doxycycline Versus Trimethoprim-Sulfamethoxazole for Skin and Soft Tissue Infections Treatment

NCT03637400
View directory record Official record
Conditions
Methicillin-resistant Staphylococcus Aureus, Skin Infection
Interventions
TMP-SMX, DOXY
Drug
Lead sponsor
Lundquist Institute for Biomedical Innovation at Harbor-UCLA Medical Center
Other
Eligibility
9 Years to 85 Years
Enrollment
269 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2025
U.S. locations
3
States / cities
Sylmar, California • Torrance, California • St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Dec 4, 2025 · Synced Oct 30, 2026, 4:25 PM EDT
Completed Phase 2 Interventional Results available

Efficacy of Doxycycline on Metakaryote Cell Death in Patients With Resectable Pancreatic Cancer

NCT02775695
View directory record Official record
Conditions
Resectable Pancreatic Cancer
Interventions
Doxycycline
Drug
Lead sponsor
Medical College of Wisconsin
Other
Eligibility
18 Years and older
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2022
U.S. locations
1
States / cities
Milwaukee, Wisconsin
Source: ClinicalTrials.gov public record
Updated Jul 3, 2023 · Synced Oct 30, 2026, 4:25 PM EDT
Recruiting Phase 2 Interventional

A Study of Standard of Care Drugs With or Without Ivermectin for Daraxonrasib-Induced Skin Toxicity in People With Pancreatic Cancer

NCT07895498
View directory record Official record
Conditions
Pancreatic Cancer, Skin Toxicities
Interventions
Minocycline, Hypochlorous Acid, Hydrocortison cream, Triamcinolone (TAC) 0.1% cream, Clobetasol, Photoprotection, Ivermectin
Drug · Other
Lead sponsor
Memorial Sloan Kettering Cancer Center
Other
Eligibility
18 Years and older
Enrollment
122 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2028
U.S. locations
7
States / cities
Basking Ridge, New Jersey • Middletown, New Jersey • Montvale, New Jersey + 4 more
Source: ClinicalTrials.gov public record
Updated Oct 26, 2026 · Synced Oct 30, 2026, 4:25 PM EDT
Terminated Phase 2 Interventional Results available

Metformin Hydrochloride and Doxycycline in Treating Patients With Head and Neck Squamous Cell Carcinoma

NCT03076281
View directory record Official record
Conditions
Larynx, LIP, Oral Cavity, Pharynx
Interventions
Metformin Hydrochloride, Doxycycline, Metformin +Doxycycline
Drug
Lead sponsor
Sidney Kimmel Comprehensive Cancer Center at Thomas Jefferson University
Other
Eligibility
18 Years and older
Enrollment
7 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2018
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jan 29, 2026 · Synced Oct 30, 2026, 4:25 PM EDT
Recruiting Early Phase 1 Interventional Accepts healthy volunteers

Weekly Isotretinoin vs Tetracycline for Moderate Acne

NCT06225570
View directory record Official record
Conditions
Acne Vulgaris
Interventions
Isotretinoin, Tetracycline
Drug
Lead sponsor
Medical University of South Carolina
Other
Eligibility
12 Years and older
Enrollment
50 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2027
U.S. locations
1
States / cities
Charleston, South Carolina
Source: ClinicalTrials.gov public record
Updated May 18, 2026 · Synced Oct 30, 2026, 4:25 PM EDT
Completed Phase 2 Interventional Results available

Topical NanoDox® for Atopic Dermatitis

NCT02910011
View directory record Official record
Conditions
Dermatitis, Atopic
Interventions
Nanodox 1% (doxycycline monohydrate hydrogel)
Drug
Lead sponsor
University of Florida
Other
Eligibility
18 Years to 65 Years
Enrollment
23 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2018
U.S. locations
2
States / cities
Gainesville, Florida
Source: ClinicalTrials.gov public record
Updated Mar 26, 2020 · Synced Oct 30, 2026, 4:25 PM EDT
Completed Phase 3 Interventional Results available

Mycoplasma Genitalium Antibiotic Susceptibility and Treatment (MEGA)

NCT00358462
View directory record Official record
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
Source: ClinicalTrials.gov public record
Updated Aug 15, 2018 · Synced Oct 30, 2026, 4:25 PM EDT
Completed Phase 2 Interventional Results available

Placebo Controlled Efficacy and Safety Study of CD2475/101 40 mg Tablets vs. Placebo and Doxycycline 100 mg Capsules Once Daily in the Treatment of Inflammatory Lesions of Acne Vulgaris

NCT01320033
View directory record Official record
Conditions
Acne Vulgaris
Interventions
CD2475/101 40 mg, Doxycycline 100 mg, Placebo
Drug
Lead sponsor
Galderma R&D
Industry
Eligibility
12 Years and older
Enrollment
662 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2012
U.S. locations
31
States / cities
Hot Springs, Arkansas • Los Angeles, California • Denver, Colorado + 25 more
Source: ClinicalTrials.gov public record
Updated Feb 18, 2021 · Synced Oct 30, 2026, 4:25 PM EDT
Completed Phase 3 Interventional Results available

A Study to Assess the Safety, Efficacy and Tolerability of Oral DFD-29 Capsules for the Treatment of Rosacea (MVOR-2)

NCT05343455
View directory record Official record
Conditions
Papulopustular Rosacea
Interventions
DFD-29, Doxycycline, Placebo
Drug
Lead sponsor
Journey Medical Corporation
Industry
Eligibility
18 Years and older
Enrollment
330 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2023
U.S. locations
15
States / cities
Santa Monica, California • Doral, Florida • Miami, Florida + 11 more
Source: ClinicalTrials.gov public record
Updated Dec 3, 2024 · Synced Oct 30, 2026, 4:25 PM EDT
Terminated Phase 3 Interventional Results available

CleanUP IPF for the Pulmonary Trials Cooperative

NCT02759120
View directory record Official record
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
Source: ClinicalTrials.gov public record
Updated Apr 8, 2021 · Synced Oct 30, 2026, 4:25 PM EDT