Rigel Pharmaceuticals
Trial Pipeline
Olutasidenib DDI Study in Patients With IDH1 Mutation Positive Malignancies
NCT07486713
Study of Olutasidenib and Temozolomide in HGG
NCT06161974
Study of R289 in Patients With Lower-risk Myelodysplastic Syndromes (LR MDS)
NCT05308264
A Safety and Efficacy Study of R935788 in the Treatment of Warm Antibody Autoimmune Hemolytic Anemia (AIHA)
NCT02612558
A Efficacy and Safety Study of Fostamatinib in the Treatment of Persistent/Chronic Immune Thrombocytopenic Purpura (ITP)
NCT02076412
Safety and Efficacy Study of Fostamatinib to Treat Immunoglobin A (IgA) Nephropathy
NCT02112838
Open Label Study of R788 in the Treatment of Persistent/Chronic Immune Thrombocytopenic Purpura (ITP)
NCT02077192
Safety and Efficacy of Topical R333 in Patients With Discoid Lupus Erythematosus (DLE) and Systemic Lupus Erythematosus (SLE) Lesions
NCT01597050
Efficacy and Safety Study of Fostamatinib Disodium Tablets to Treat T-Cell Lymphoma
NCT00798096
Treatment of Arthritis With Syk Kinase Inhibition (TASKI-1)
NCT00326339
Phase Distribution
| Phase | Trial count |
|---|---|
| Phase 1 | 28 |
| Phase 2 | 6 |
| Phase 3 | 2 |
| Phase 4 | 32 |
What the Pipeline for Rigel Pharmaceuticals Shows
According to the ClinicalTrials.gov registry, Rigel Pharmaceuticals is linked to 68 US clinical trials across every stage of research activity. Of those, 61 studies are currently recruiting — about 90% of the sponsor's indexed portfolio — and 7 are already marked complete, representing roughly 10% of the total. Recruiting share is one of the more practical signals here: it reflects how much of a sponsor's research is presently open to new participants, while the completed share indicates the depth of finished work that has already contributed registry results. Both counts come directly from the public ClinicalTrials.gov dataset and are refreshed on the registry side; this page mirrors the latest data pull without altering it.
The phase mix for Rigel Pharmaceuticals reports 34 late-stage studies (Phase 3 and Phase 4 combined) and 34 earlier-phase studies (Phase 1 and Phase 2). A portfolio weighted toward Phase 3 usually reflects an organization advancing candidates toward regulatory review, where the research centers on comparative efficacy and broader safety across larger populations. A heavier Phase 1 and Phase 2 tilt generally indicates exploratory work — safety, dosing, and early signal detection — and is common among research-forward sponsors that seed many early programs. Phase 4 entries, when present, track interventions already in real-world use and typically focus on long-term safety, effectiveness across subgroups, or formulation comparisons.
The top therapeutic focus area indexed for Rigel Pharmaceuticals is Immune Thrombocytopenic Purpura with 2 linked trials, and 9 other condition areas appear in the top list above. That distribution is a quick read of where the organization concentrates its research attention; it does not imply product availability, market share, or any clinical endorsement. All numbers on this page come from ClinicalTrials.gov maintained by the National Library of Medicine, and counts can shift as new studies are registered or existing ones update their status. This information is provided for reference and educational purposes only, not as medical, investment, or regulatory advice — verify current details directly with ClinicalTrials.gov before relying on any figure here.
Read our methodology — how this data is sourced, computed, and verified.