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C1131003 - AN INTERVENTIONAL PHASE 2, OPEN-LABEL, MULTI-CENTER STUDY TO EVALUATE SAFETY AND EFFICACY OF PF-06835375 IN ADULT PARTICIPANTS WITH MODERATE TO SEVERE PRIMARY IMMUNE THROMBOCYTOPENIA

Status
Active, not recruiting
Phases
Phase 2
Study type
Interventional
Source
EU CTIS
Registry ID
CTIS2023-509338-21-00
Acronym
C1131003
Enrollment
42
Registered
2024-06-03
Start date
2025-05-28
Completion date
Unknown
Last updated
2025-12-15

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Primary immune thrombocytopenia

Brief summary

Log2 (platelet count) at Week 12 (6 mg cohort), and at Week 16 for both 18 mg and 50 mg cohorts.

Detailed description

Modified overall response (mOR) at Week 12 (6 mg cohort), and at Week 16 for both 18 mg and 50 mg cohorts., Complete response (CR) at Week 12 (6 mg cohort), and at Week 16 for both 18 mg and 50 mg cohorts., Incidence of AEs as characterized by type, frequency, severity, timing, seriousness, and relationship to study intervention, Day 1 through end of study, Log2 (platelet count), Modified response (mOR), Complete response (CR), Absolute values and change of platelet count from baseline, Absolute values and change from baseline of circulating B and cTfh cell counts

Interventions

DRUGPF-06835375 Injection

Sponsors

Pfizer Inc.
Lead SponsorINDUSTRY

Eligibility

Sex/Gender
All
Age
18 Years to No maximum

Design outcomes

Primary

MeasureTime frame
Log2 (platelet count) at Week 12 (6 mg cohort), and at Week 16 for both 18 mg and 50 mg cohorts.

Secondary

MeasureTime frame
Modified overall response (mOR) at Week 12 (6 mg cohort), and at Week 16 for both 18 mg and 50 mg cohorts., Complete response (CR) at Week 12 (6 mg cohort), and at Week 16 for both 18 mg and 50 mg cohorts., Incidence of AEs as characterized by type, frequency, severity, timing, seriousness, and relationship to study intervention, Day 1 through end of study, Log2 (platelet count), Modified response (mOR), Complete response (CR), Absolute values and change of platelet count from baseline, Absolute values and change from baseline of circulating B and cTfh cell counts

Countries

Czechia, Hungary, Poland

Outcome results

None listed

Source: EU CTIS · Data processed: Feb 4, 2026