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ClinicalTrials.gov public records Last synced Oct 12, 2026, 8:42 AM EDT

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

Showing 73–96 of 174 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: Doxycycline hyclate (Doryx) Clear all
Terminated Phase 1 Interventional Accepts healthy volunteers

Ph1 Study of Valortim and Doxycycline in Humans

NCT00964834
View directory record Official record
Conditions
Anthrax
Interventions
Doxycycline and Valortim, Placebo Antibiotic and Valortim, Placebo Antibiotic and Placebo Valortim
Drug
Lead sponsor
PharmAthene, Inc.
Industry
Eligibility
18 Years to 65 Years
Enrollment
24 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009
U.S. locations
1
States / cities
Overland Park, Kansas
Source: ClinicalTrials.gov public record
Updated Aug 10, 2010 · Synced Oct 12, 2026, 8:42 AM 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 12, 2026, 8:42 AM EDT
Recruiting Phase 2 Interventional

MMP-9 Inhibition for Recalcitrant Wet AMD

NCT04504123
View directory record Official record
Conditions
Exudative Macular Degeneration, Wet Age-related Macular Degeneration
Interventions
Doxycycline Hyclate, Placebo
Drug
Lead sponsor
University of Iowa
Other
Eligibility
50 Years to 99 Years
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2027
U.S. locations
1
States / cities
Iowa City, Iowa
Source: ClinicalTrials.gov public record
Updated Apr 2, 2026 · Synced Oct 12, 2026, 8:42 AM 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 12, 2026, 8:42 AM EDT
Not listed Phase 4 Interventional Accepts healthy volunteers

Norplant and Irregular Bleeding/Spotting

NCT00064766
View directory record Official record
Conditions
Endometrial Bleeding, Periodontal Disease
Interventions
doxycycline
Drug
Lead sponsor
Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)
NIH
Eligibility
18 Years to 40 Years · Female only
Enrollment
50 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2003 – 2005
U.S. locations
1
States / cities
Norfolk, Virginia
Source: ClinicalTrials.gov public record
Updated Jun 24, 2005 · Synced Oct 12, 2026, 8:42 AM EDT
Recruiting Phase 1 Interventional

Prophylactic Antibiotics Useful With Antibiotic Impregnated External Ventricular Drains (EVDs)?

NCT05001750
View directory record Official record
Conditions
Subarachnoid Hemorrhage, Intracerebral Hemorrhage, Ventriculitis, Cerebral, Hydrocephalus
Interventions
Long term (continuous) prophylactic antibiotics, 24 hours antibiotics
Drug
Lead sponsor
Montefiore Medical Center
Other
Eligibility
18 Years and older
Enrollment
84 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2028
U.S. locations
1
States / cities
The Bronx, New York
Source: ClinicalTrials.gov public record
Updated Aug 10, 2026 · Synced Oct 12, 2026, 8:42 AM EDT
Withdrawn Not applicable Interventional Accepts healthy volunteers

The Impact of Triptan and Doxycycline on Neuroinflammatory Biomarkers in Acute Migraine

NCT01653522
View directory record Official record
Conditions
Migraine Disorders, Headache, Migraine, Migraine, Migraine Headache, Migraine With Aura, Migraine Without Aura, Headache Disorders, Primary
Interventions
Triptan, Doxycycline
Drug
Lead sponsor
The Cleveland Clinic
Other
Eligibility
18 Years and older
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2014
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Dec 29, 2016 · Synced Oct 12, 2026, 8:42 AM EDT
Completed Phase 1Phase 2 Interventional Results available

Doxycycline and TUDCA in Patients With Transthyretin Amyloid Cardiomyopathy

NCT01855360
View directory record Official record
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
Source: ClinicalTrials.gov public record
Updated Dec 4, 2020 · Synced Oct 12, 2026, 8:42 AM 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 12, 2026, 8:42 AM EDT
Terminated Phase 3 Interventional Results available

D-PLEX 302: Efficacy and Safety of D-PLEX in the Prevention of Sternal Infection Post Cardiac Surgery

NCT03558984
View directory record Official record
Conditions
Surgical Site Infection, Sternal Infection, Cardiac Surgery
Interventions
D-PLEX, Standard of Care
Drug · Other
Lead sponsor
PolyPid Ltd.
Industry
Eligibility
18 Years and older
Enrollment
2 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2022
U.S. locations
2
States / cities
Rochester, Minnesota • Huston, Texas
Source: ClinicalTrials.gov public record
Updated Jun 30, 2026 · Synced Oct 12, 2026, 8:42 AM EDT
Withdrawn Not applicable Interventional

Study of NanoDOX Hydrogel vs Placebo for Dehisced Surgical Wounds

NCT01547325
View directory record Official record
Conditions
Dehisced Surgical Wounds
Interventions
NanoDOX 1% doxycycline monohydrate Hydrogel, placebo hydrogel
Drug
Lead sponsor
NanoSHIFT LLC
Industry
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2013
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Mar 13, 2017 · Synced Oct 12, 2026, 8:42 AM EDT
Completed Phase 4 Interventional Results available

Duration of Antibiotic Therapy as Part of Maximal Medical Therapy for Chronic Rhinosinusitis

NCT01825408
View directory record Official record
Conditions
Sinusitis
Interventions
Doxycycline, Azithromycin, Augmentin
Drug
Lead sponsor
University of North Carolina, Chapel Hill
Other
Eligibility
18 Years to 99 Years
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2014
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated Apr 4, 2017 · Synced Oct 12, 2026, 8:42 AM 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 12, 2026, 8:42 AM EDT
Completed Phase 4 Interventional Results available

NOrth American Study for the Treatment of Recurrent epIstaxis With DoxycycLine: The NOSTRIL Trial

NCT04167085
View directory record Official record
Conditions
Epistaxis
Interventions
Doxycycline, Placebo
Drug · Other
Lead sponsor
University of California, Los Angeles
Other
Eligibility
18 Years and older
Enrollment
26 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2021
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Jul 20, 2022 · Synced Oct 12, 2026, 8:42 AM EDT
Enrolling by invitation Phase 3 Interventional Accepts healthy volunteers

Or v IV Antibiotics for Infection

NCT04723940
View directory record Official record
Conditions
Joint Infection
Interventions
Bactrim, Cefadroxil, Doxycycline Hcl, Clindamycin
Drug
Lead sponsor
Rothman Institute Orthopaedics
Other
Eligibility
18 Years and older
Enrollment
308 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2028
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Oct 8, 2026 · Synced Oct 12, 2026, 8:42 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Fasting Study of Doxycycline Monohydrate Tablets 150 mg and Adoxa Tablets 150 mg

NCT00647959
View directory record Official record
Conditions
Healthy
Interventions
Doxycycline Tablets, 150mg, Adoxa Tablets 150 mg
Drug
Lead sponsor
Mylan Pharmaceuticals Inc
Industry
Eligibility
18 Years and older
Enrollment
36 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006
U.S. locations
1
States / cities
Morgantown, West Virginia
Source: ClinicalTrials.gov public record
Updated Apr 24, 2024 · Synced Oct 12, 2026, 8:42 AM EDT
Completed No phase listed Observational

Risk of Acute Liver Injury in Users of Antimicrobials

NCT01434173
View directory record Official record
Conditions
Drug-Induced Liver Injury
Interventions
Moxifloxacin (Avelox, BAY12-8039), Amoxicillin, Amoxicillin plus clavulanic acid, Cefuroxime, Clarithromycin, Doxycycline, Levofloxacin, Telithromycin
Drug
Lead sponsor
Bayer
Industry
Eligibility
18 Years and older
Enrollment
1,299,056 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2001 – 2009
U.S. locations
1
States / cities
Many Locations, Delaware
Source: ClinicalTrials.gov public record
Updated Jul 8, 2014 · Synced Oct 12, 2026, 8:42 AM EDT
Not listed Phase 2 Interventional Accepts healthy volunteers

Assessment of Suppression of Cutaneous Allergic Responses and Pruritus by Topical Doxycycline

NCT03968562
View directory record Official record
Conditions
Hives
Interventions
2% Doxycycline Cream in Generic Aquaphor or Generic Aquaphor
Drug
Lead sponsor
State University of New York - Downstate Medical Center
Other
Eligibility
18 Years to 75 Years
Enrollment
25 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2022
U.S. locations
1
States / cities
Brooklyn, New York
Source: ClinicalTrials.gov public record
Updated Oct 14, 2021 · Synced Oct 12, 2026, 8:42 AM EDT
Not listed Phase 3 Interventional Accepts healthy volunteers

Prospective Evaluation of Oral Antibiotics for Treatment of Shoulder PJI

NCT04636125
View directory record Official record
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
Source: ClinicalTrials.gov public record
Updated Nov 19, 2020 · Synced Oct 12, 2026, 8:42 AM 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 12, 2026, 8:42 AM EDT
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 12, 2026, 8:42 AM EDT
Terminated Phase 1Phase 2 Interventional Results available

Lefamulin for M. Genitalium Treatment Failures

NCT05111002
View directory record Official record
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
Source: ClinicalTrials.gov public record
Updated Oct 26, 2024 · Synced Oct 12, 2026, 8:42 AM 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 – 2026
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Dec 8, 2025 · Synced Oct 12, 2026, 8:42 AM EDT
Completed Phase 2Phase 3 Interventional

The Fleming [FMTVDM] Directed CoVid-19 Treatment Protocol

NCT04349410
View directory record Official record
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
Source: ClinicalTrials.gov public record
Updated Nov 12, 2020 · Synced Oct 12, 2026, 8:42 AM EDT