Rare condition

Complex regional pain syndrome

27

studies recruiting now

as of 7 Sept 2026

236

studies registered in total

as of 7 Sept 2026

3

countries with a recruiting site

as of 7 Sept 2026

28 Aug 2026

most recent study posted

among recruiting studies

Recruiting trials

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

See all 27 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.

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Patient organisations

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

About Complex regional pain syndrome

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.

Treatments being studied

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

Phase 3Human Immunoglobulin G (Flebogamma dif (previously flebogammadif))
Phase 3Ascorbic Acid (Ascor)
Phase 3Neridronic Acid
Phase 3Oxygen (Medicinal oxygen air liquide sante)
Phase 3Brezivaptan
Phase 3Zoledronic Acid Anhydrous
Phase 3Nitrous Oxide (Entonox)
Phase 2/3Lidocaine (Alphacaine)

+ 8 more in development

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).