PF-06835375

This is a Phase 2, open-label, multicenter, multiple subcutaneous injection, safety and efficacy study of PF-06835375 in adult participants with primary immune thrombocytopenia (ITP). This study will focus on participants with persistent (>3 months and ≤12 months), or chronic (>12 months) ITP

This is a Phase 1 single and multiple dose escalation study to evaluate the safety, tolerability, pharmacokinetics, and pharmacodynamics of PF-06835375 in subjects with seropositive SLE or RA. The design is double-blind, sponsor open and placebo controlled. This study will include two parts: Part A and Part B. Part A will consist of single ascending dose cohorts, Part B of multiple ascending dose cohorts. This study will enroll up to a total of approximately 112 subjects at approximately 10 sites.