Rare condition

Reactive arthritis

ORPHA:29207 ↗Gene HLA-B

Search all Reactive arthritis trialsAlert me when a trial opens

studies recruiting now

as of 7 Sept 2026

studies registered in total

as of 7 Sept 2026

countries with a recruiting site

as of 7 Sept 2026

8 Apr 2026

most recent study posted

among recruiting studies

Recruiting trials

RecruitingNCT04751396

Testing of an Educational Tool for Patients With Melanoma and Pre-Existing Autoimmune Disease Who Are Candidates for Immune Checkpoint Inhibitors

Sponsor M.D. Anderson Cancer CenterWhere United States (1 site)Studying Best Practice, Educational InterventionUpdated 20 May 2026

See details

RecruitingNCT06718569

Pain in Inflammatory Joint Diseases

Sponsor Diakonhjemmet HospitalWhere Norway (1 site)Studying Biological or targeted synthetic DMARDUpdated 13 Apr 2026

See details

RecruitingPhase 2NCT07517575

Pharmacokinetics, Efficacy and Safety of Olokizumab In Patients With Juvenile Idiopathic Arthritis

Sponsor R-Pharm International, LLCWhere Russia (14 sites)Studying OKZ q4w, OKZ q4wUpdated 8 Apr 2026

See details

RecruitingNCT04402086

Rheumatology Patient Registry and Biorepository

Sponsor Yale UniversityWhere United States (1 site)Updated 13 Feb 2026

See details

RecruitingNCT06587828

A Biospecimen Collection Study to Identify the Targets of Disease-Reactive T Cells in Patients With Autoimmune Disease

Sponsor TScan Therapeutics, Inc.Where United States (12 sites)Studying Companion blood samples with procedureUpdated 24 Nov 2025

See details

Showing the 5 most recently updated recruiting studies, as recorded 7 Sept 2026. Live status on each study page.

See all 6 recruiting studies

Where recruiting studies are running

Countries with at least one recruiting site among the studies above, 7 Sept 2026. Tap a country to search trials there.

Norway Russia United States

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Patient organisations

We do not yet list a dedicated organisation for this condition. The directories below are the best route.

NORD ↗GARD ↗Orphanet ORPHA:29207 ↗

About Reactive arthritis

RareTrial does not yet hold a plain-language description of this condition. The most reliable starting point is Orphanet’s expert page, which lists specialist centres, registries and patient organisations, and the gene involved (HLA-B).

Orphanet expert page ↗GARD (NIH) ↗

Treatments being studied

5 in clinical development, from Open Targets (CC BY 4.0). Not medical advice.

Phase 3Rifampin (Eremfat)

Phase 3Azithromycin (Azasite)

Phase 3Doxycycline (Doxirobe)

Phase 2Interferon Gamma-1b (Actimmune)

Phase 2Infliximab (Flixabi)

Related conditions

Information, not medical advice. Trial listings are shown as recorded on ClinicalTrials.gov; whether any study is right for you is a decision for you and your clinicians, and eligibility is decided by each research team. Disease information from Orphanet (CC BY 4.0).