4 completed, 2 recruiting, 1 active not recruiting, 1 not yet recruiting. 8 Phase 4.
| Phase | Trials | Status |
|---|---|---|
| Phase 4 | 8 | Completed 4, Recruiting 2, Active not recruiting 1, Not yet recruiting 1 |
Follow Chlamydia: new trials by email Literature Review of Chlamydia trials Research Report on Chlamydia
Tick up to 5 trials to compare them side by side (eligibility, arms, endpoints, adverse events) in a Literature Matrix.
| Trial | Phase | Status | Sponsor | Enrollment | Start | Updated |
|---|---|---|---|---|---|---|
| Daily, Weekly, or Event-driven Doxycycline for STI Prevention Among Men Who Have Sex With Men (MSM) Engaging in Chemsex: The DOSE Non-inferiority Trial On demand doxycycline hyclate 200mg, Daily doxycycline hyclate 100mg, Weekly doxycycline hyclate 100mg - Gonorrhea, Chlamydia | Phase 4 | Not yet recruiting | University of California, Los Angeles | 300 | 2026-11-01 | 2026-11-09 |
| Doxycycline Prophylaxis for Prevention of Sexually Transmitted Infections 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 - Gonorrhea, Chlamydia | Phase 4 | Recruiting | Westat | 760 | 2026-02-27 | 2026-10-16 |
| The Efficacy of Doxycycline Post Exposure Prophylaxis for Preventing STIs Among MSM in Bangkok, Thailand. Doxycycline (200mg/day) - Syphilis Infection, Gonorrhea | Phase 4 | Recruiting | Bangrak STIs Center | 400 | 2025-10-06 | 2026-02-09 |
| Superiority of On-demand PrEP Versus PEP on Using Doxycycline for Preventing STI in MSM DoxyODPrEP, DoxyPEP - Sexually Transmitted Diseases, Bacterial, Syphilis | Phase 4 | Active not recruiting | Chinese University of Hong Kong | 300 | 2025-03-29 | 2026-06-05 |
| Evaluation of Doxycycline Post-exposure Prophylaxis to Reduce Sexually Transmitted Infections in PrEP Users and HIV-infected Men Who Have Sex With Men Doxycycline Hyclate Delayed-Release 200 mg - Gonorrhea, Chlamydia | Phase 4 | Completed | University of California, San Francisco | 641 | 2019-11-26 | 2024-07-12 |
| Tripartite International Research for the Elimination of Trachoma mass treatment with oral azithromycin - Trachoma, Chlamydia | Phase 4 | Completed | University of California, San Francisco | 29000 | 2010-11-01 | 2017-10-11 |
| Trachoma Amelioration in Northern Amhara (TANA) Mass treatment with oral azithromycin to an entire community - Trachoma, Chlamydia | Phase 4 | Completed | University of California, San Francisco | 33000 | 2006-06-01 | 2015-09-09 |
| Trachoma Elimination Follow-up Mass treatment with oral azithromycin to an entire village - Trachoma, Chlamydia | Phase 4 | Completed | University of California, San Francisco | 20000 | 2003-03-01 | 2015-07-15 |
Chlamydia Infections (8) · Gonorrhea (5) · Syphilis (5) · Sexually Transmitted Diseases (4) · Trachoma (3) · Bacterial Infections (2) · Eye Diseases (2) · Homosexuality (2) · Sexually Transmitted Diseases, Bacterial (1)
Bacterial Infections and Mycoses (8) · Chlamydiaceae Infections (8) · Communicable Diseases (8) · Genital Diseases (8) · Gram-Negative Bacterial Infections (8) · Infections (8) · Urogenital Diseases (8) · Sexually Transmitted Diseases, Bacterial (7) · Bacterial Infections (6) · Neisseriaceae Infections (5) · Spirochaetales Infections (5) · Treponemal Infections (5) · Disease Attributes (4) · Pathologic Processes (4) · Pathological Conditions, Signs and Symptoms (4)
Azithromycin (1) · Doxycycline (1) · Therapeutics (1)
University of California, San Francisco (4) · Bangrak STIs Center (1) · Chinese University of Hong Kong (1) · University of California, Los Angeles (1) · Westat (1)
Ethiopia (3) · United States (3) · Hong Kong (1) · Thailand (1)
Kieran S O'Brien, MPH (2) · Paul Emerson, PhD (2) · Tom Lietman, MD (2) · Anne Luetkemeyer, MD (1) · Cherie Blair, MD, PhD (1) · Cherie Blaire, MD, PhD (1) · Jenell Stewart, DO, MPH (1) · Thomas M Lietman, MD (1) · Tsz Ho Kwan, PhD (1)
PMID 37018493, PMID 19329003, PMID 21685340, PMID 22095569, PMID 22192488, PMID 22736616, PMID 24621121, PMID 29229440, PMID 30106956, PMID 31166952, PMID 33835852, PMID 34143341, PMID 34392717, PMID 34852691, PMID 37021692, PMID 38118022, PMID 38656217, PMID 38797183, PMID 39363100, PMID 40147465, PMID 40637301
R01AI143439 (1), R01DA066392 (1), UM2HD111076 (1), UM2HD111102 (1)