Completed PHASE2 INTERVENTIONAL 3-arm NCT00665925

Efficacy and Safety Study of R935788 Tablets to Treat Rheumatoid Arthritis (Taski-2)

A Phase II, Multicenter, Randomized, Double-Blind, Placebo-Controlled, Parallel Dose Study of Two Doses of R935788 in Rheumatoid Arthritis Patients Failing to Respond to Methotrexate

Sponsor: Rigel Pharmaceuticals

Conditions Rheumatoid Arthritis

Interventions Fostamatinib disodium (R935788) Placebo

Updated 9 times since 2017 Last updated: Aug 5, 2016 Started: May 31, 2008 Primary completion: Jun 30, 2009 Completion: Jun 30, 2009

This information is for research purposes only and is not medical advice. Consult a healthcare provider before making any medical decision.

This PHASE2 trial investigates Rheumatoid Arthritis and is currently completed. Rigel Pharmaceuticals leads this study, which shows 9 recorded versions since 2008 — indicating limited longitudinal coverage. The change history captured here reflects the iterative nature of clinical trial conduct.

Status Flow

Change History

9 versions recorded

Oct 2025 — Present [monthly]

Completed PHASE2
Sep 2025 — Oct 2025 [monthly]

Completed PHASE2
Sep 2024 — Sep 2025 [monthly]

Completed PHASE2
Jul 2024 — Sep 2024 [monthly]

Completed PHASE2
Dec 2021 — Jul 2024 [monthly]

Completed PHASE2

▶ Show 4 earlier versions

Jan 2021 — Dec 2021 [monthly]

Completed PHASE2
Jun 2018 — Jan 2021 [monthly]

Completed PHASE2
Feb 2017 — Jun 2018 [monthly]

Completed PHASE2
Jan 2017 — Feb 2017 [monthly]

Completed PHASE2

First recorded

May 2008

Trial started

Per CT.gov start date — pre-dates our first snapshot

Eligibility Summary

No eligibility information available.

Contact Information

Sponsor contact:

Rigel Pharmaceuticals

Data source: Rigel Pharmaceuticals

For direct contact, visit the study record on ClinicalTrials.gov .

Study Locations

Austin, United States , Barranquilla, Colombia , Bialystok, Poland , Bogota, Colombia , Bogotá, Colombia , Brăila, Romania , Bucaramanga, Colombia , Bucharest, Romania , Bytom, Poland , Charleston, United States and 43 more locations