Clinical Trial

A PHASE II TRIAL AIMING TO INVESTIGATE THE SAFETY AND CLINICAL ACTIVITY OF BELANTAMAB MAFODOTIN IN ADULT PATIENTS WITH PRIMARY IMMUNE THROMBOCYTOPENIA PREVIOUSLY TREATED WITH A THROMBOPOIETIN RECEPTOR AGONIST AND/OR RITUXIMAB AFTER CORTICOSTEROID FIRST-LINE THERAPY

Study acronym: BONSAI
Not Yet Recruiting Phase 2
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Record status
This record was last updated June 13, 2025 (before its estimated June 20, 2026 completion). Its status may not reflect the trial's current state.
Summary
This is a Phase II open label, prospective, multicenter trial designed to assess the safety and clinical activity of belantamab mafodotin in adult patients with primary immune thrombocytopenia (ITP) previously treated with a thrombopoietin receptor agonist (TPO-RA) and/or rituximab after first-line treatment with corticosteroids. Overall, 14 participants will be enrolled in the trial. Participants' follow-up will continue for up to 12 months after the last participant is enrolled. The accrual period will be approximately 12 months. Trial treatment will be given in 28-day cycles for a total period of one year per patient or until treatment failure, physician decision, unacceptable toxicity, withdrawal of consent, or death (whichever occurs first). Participants without confirmed Response (R) or better after two infusions with belantamab mafodotin will be discontinued from trial treatment and will not be replaced.
Trial Details
NCT Number NCT07019545
Lead Sponsor Hellenic Society of Hematology
Conditions Primary Immune Thrombocytopenia (ITP)
Enrollment 14 participants
Start Date 2025-06-20
Primary Completion 2026-06-20 (estimated)
Study Completion 2027-06-20 (estimated)
Updated on ClinicalTrials.gov 2025-06-13