Clinical trial Recruiting at 5 sites Phase 2 Interventional Ages 18 to 70

SUN-627 in non-active SPMS/PPMS: a Phase 2a test in adults

Official title: A Phase 2a, Randomized, Double-Blind, Placebo-Controlled Study of SUN-627 to Evaluate Safety, Tolerability, Pharmacokinetics, Pharmacodynamics, and Impact on Measures of Neuroinflammation in the Central Nervous System in Participants With Non-Active Progressive Multiple Sclerosis (SPMS/PPMS)

Run by Sundance Biosciences, Inc. · NCT07840326 · Data updated 2026-11-12

This trial tests whether SUN-627 is safe and tolerable in adults with non-active primary or secondary progressive MS.

Quick facts

PhasePhase 2
Study typeInterventional
Ages18 Years to 70 Years
SexAll
Enrollment20 (estimated)
SponsorSundance Biosciences, Inc.
Industry-sponsored
Locations7 sites (Tampa, Florida and 6 other locations)
StatusRecruiting
StartedOctober 2026
Main results expectedJune 2027
Study endsJuly 2027
Registry record updatedOctober 30, 2026
Trial IDNCT07840326 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Adults aged 18-70 with a diagnosis of PPMS or non-active SPMS and evidence of ongoing disease progression.

Probably not a fit

Patients with active relapse, certain cardiovascular or infectious conditions, or those needing prohibited concomitant therapies may not benefit.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This is a randomized, double-blind, placebo-controlled Phase 2a study to evaluate SUN-627 at two dose levels in adults with non-active SPMS or PPMS. The study will assess safety, tolerability, pharmacokinetics, pharmacodynamics, and effects on CNS neuroinflammation. Participants must be 18-70 years old, have PPMS or non-active SPMS, no relapses in 2 years, and documented progression. Exclusion criteria include certain cardiac conditions, active infections, and recent participation in another trial. The study is led by Sundance Biosciences and conducted at three sites in Tampa, Atlanta, and Stony Brook.

Why it matters

Potential benefit: If successful, SUN-627 could offer a new treatment option that may help stabilize or slow disease-related changes in non-active SPMS/PPMS.

How similar studies have gone: Previous similar approaches in neuroinflammatory MS have shown safety signals in early phases, but this exact SUN-627 approach in non-active PPMS/SPMS is exploratory.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

1. Aged 18-70, inclusive
2. Diagnosis of PPMS or non-active SPMS
3. No MS relapses in the past 2 years
4. Evidence that MS has continued to get worse over time
5. A level of disability that fits the study requirements

Exclusion Criteria:

1. Use of certain medications or treatments before the study, or need for these treatments during the study
2. Current participation in another research study
3. Certain abnormal heart rhythm findings on ECG or other heart conditions that may increase risk
4. Certain serious or unstable medical conditions that could make the study unsafe
5. Active infection, recent infection, or a history of repeated infections

Additional inclusion and exclusion criteria are outlined in the full study protocol.

Where it's running

  • Local Institution - Site 103
    Tampa, Florida, United States
    Recruiting
  • Local Institution - Site 102
    Atlanta, Georgia, United States
    Recruiting
  • Local Institution - Site 101
    Raleigh, North Carolina, United States
    Recruiting
  • Local Institution - Site 104
    Columbus, Ohio, United States
    Recruiting
  • Local Institution - Site 105
    Oklahoma City, Oklahoma, United States
    Recruiting
  • Local Institution - Site 106
    Stony Brook, New York, United States
    Not yet recruiting
Show 1 more location
  • Local Institution - Site 107
    Dallas, Texas, United States
    Not yet recruiting

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.