Phase 1b Trial of RAY121 in Immunological Diseases (RAINBOW Trial)
Public ClinicalTrials.gov record NCT06371417. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.
Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.
Official title
Phase 1b Open-label Basket Trial of RAY121 to Inhibit Classical Complement Pathway in Immunological Diseases (RAINBOW Trial)
Study identification
- NCT ID
- NCT06371417
- Recruitment status
- Recruiting
- Study type
- Interventional
- Phase
- Phase 1
- Lead sponsor
- Chugai Pharmaceutical
- Industry
- Enrollment
- 144 participants
Conditions and interventions
Conditions
Interventions
- RAY121 Drug
Drug
Eligibility (public fields only)
- Age range
- 18 Years to 85 Years
- Sex
- All
- Healthy volunteers
- Not listed
This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.
Study timeline
- Start date
- Aug 18, 2024
- Primary completion
- Jun 29, 2026
- Completion
- Jun 29, 2026
- Last update posted
- Apr 1, 2026
2024 – 2026
United States locations
- U.S. sites
- 11
- U.S. states
- 8
- U.S. cities
- 11
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| University of California-Irvine | Orange | California | 92868 | Recruiting |
| Johns Hopkins University | Baltimore | Maryland | 21224 | Not yet recruiting |
| Northwell Health, LLC PRIME | Lake Success | New York | 11042 | Active, not recruiting |
| Hospital for Special Surgery | New York | New York | 10021 | Active, not recruiting |
| Universtity of North Carolina at Chapel Hill | Chapel Hill | North Carolina | 27599 | Not yet recruiting |
| Ohio State University | Columbus | Ohio | 43203 | Withdrawn |
| Oregon Health & Science University | Portland | Oregon | 97239 | Recruiting |
| University of Pennsylvania, Perelman Center for Advanced Medicine | Philadelphia | Pennsylvania | 19104 | Recruiting |
| Amarillo Center for Clinical Research | Amarillo | Texas | 79124 | Active, not recruiting |
| Austin Neuromuscular Center | Austin | Texas | 78759 | Recruiting |
| Nerve and Muscle Center of Texas | Houston | Texas | 77030 | Not yet recruiting |
Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.
Non-U.S. locations
This page focuses on the U.S. directory. The official record also lists 58 non-U.S. sites.
About this trial record page
- What this page shows
- Public field values for ClinicalTrials.gov record NCT06371417, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
- What this page does not do
- No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
- Where the data comes from
- Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
- Last refresh
- Last update posted Apr 1, 2026 · Synced Apr 22, 2026
Related: full search, browse by condition, browse by drug or therapy, browse by sponsor, browse by U.S. city.
Open the official record
The complete protocol, eligibility criteria, and contact information for NCT06371417 live on ClinicalTrials.gov.