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All 3 Stiff Person Syndrome trials and their US sites
Enter your ZIP code above to sort them by how far their nearest open site is from you.
- A Long-Term Follow-Up Study for Participants Previously Treated With KYV-101Only in ColoradoRecruitingAges 18+Kyverna Therapeutics1US site
- VYVGART (Hytrulo) in Patients With Stiff Person Syndrome (SPS)Only in PennsylvaniaRecruitingPhase 2/3Ages 25-80Thomas Jefferson University1US site
- Biomarkers in Autoimmune Disease of Nervous SystemRecruitingAges 18+Tongji HospitalNo US site yet
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Who runs the Stiff Person Syndrome trials in the US, and what stage they are in
Of the 3 Stiff Person Syndrome trials with a US site, 1 is in Phase 3, the last stage before a company can ask the FDA for approval. One more is an earlier Phase 1 or 2 test of safety and dosing. The last one has no drug phase, such as a study that follows people over time or tests a device or a way of giving care. Companies run 1 of them, and universities, hospitals, foundations and government groups run 2. The most recently listed one first appeared on ClinicalTrials.gov on October 6, 2026.
Stiff Person Syndrome trials in the US, state by state
None of the 3 Stiff Person Syndrome trials with a US site lists children under 18 as eligible. A trial counts once in each state where it has an open site, and some trials accept both children and adults.
US hospitals running the most Stiff Person Syndrome trials
Centers that run trials for a rare condition often see more people with it than most clinics do, so this list can also help you find doctors who know Stiff Person Syndrome.
- Thomas Jefferson UniversityPhiladelphia, Pennsylvania1 trial
- University of Colorado, DenverDenver, Colorado1 trial
- University of South Florida, Carol and Frank Morsani Center for Advanced HealthcareTampa, Florida1 trial
Help getting to a Stiff Person Syndrome trial far from home
Ask the study team whether the trial pays back travel, parking and hotel costs, because many sponsors do. The FDA's guidance on paying research volunteers says paying back these costs does not count as pressuring someone to join.
These nonprofits also help patients reach care, and each one sets its own rules.
- Mercy Medical Angels
- Pays for gas cards, ground rides and airline tickets anywhere in the US, and it lists clinical trials as a reason to travel. Household income at or below 300% of the federal poverty guidelines, and usually a trip of 50 miles or more each way.
- Air Charity Network
- Volunteer pilots in all 50 states fly patients for free in small private planes, and members also fly people taking part in clinical trials. You must be able to walk and sit upright for the flight, show financial need and have a backup plan if weather cancels it.
- Healthcare Hospitality Network
- Keeps a map of hospitality houses near hospitals, and most member houses charge little or nothing to patients and families. Each house sets its own rules, so check with the house near your study site.
Program details were checked on each program's website on October 24, 2026.
Questions about finding a Stiff Person Syndrome trial near you
Are there Stiff Person Syndrome clinical trials near me?
As of November 13, 2026, 3 Stiff Person Syndrome clinical trials are recruiting now and 4 are not yet recruiting. In the US, 3 of them have at least 1 open site, across 3 states. Enter your ZIP code on this page to rank every one of them by the distance to its closest open site, with the sites shown on a map.
Which states have Stiff Person Syndrome clinical trial sites?
Recruiting Stiff Person Syndrome trials list open sites in Colorado, Florida and Pennsylvania.
Are there Stiff Person Syndrome trials for children near me?
None of the 3 Stiff Person Syndrome trials with a US site lists children under 18 as eligible. Each trial sets its own age limits, so check the ages listed on a trial before you contact it.
Who pays for travel to a Stiff Person Syndrome clinical trial?
Many trial sponsors pay back travel, parking and hotel costs, so ask the study team before you rule out a far-away site. The FDA's guidance says paying back these costs does not count as pressuring someone to join. Charities such as Mercy Medical Angels and Air Charity Network can also help with rides and flights.
What if there is no Stiff Person Syndrome trial near me?
Some trials send staff to your home or use a local lab, so fewer visits happen at the study site. You can also sign up on this page to get an email when a Stiff Person Syndrome trial opens a new site or changes status.
How is the distance to a trial site measured?
Distances are straight-line miles from the center of your ZIP code to each study site's listed location, not driving distance. Your browser looks up the ZIP code's coordinates with a free map service, Zippopotam.us, and the ZIP code is never sent to or stored by Trial Friend.
FDA-approved for Stiff Person Syndrome: Diazepam (diazepam oral).
Clinical trials near you for related conditions
Source: ClinicalTrials.gov, trials with status Recruiting or Not yet recruiting. Refreshed every 6 hours; counts as of November 13, 2026. Sites that ClinicalTrials.gov lists as closed or withdrawn are left out. Children means the trial's age group includes people under 18.