Last updated on May 2019

A Study to Evaluate the Safety Efficacy and Pharmacokinetics of ARGX-113 in Patients With ITP


Brief description of study

The purpose of the study is to determine safety, efficacy, tolerability and Pharmacokinetics of ARGX-113 in Patients with Primary Immune Thrombocytopenia.

Detailed Study Description

This is a randomized, double-blind, placebo-controlled Phase II study in which approximately 36 patients will be randomized in a 1:1:1 ratio to receive either ARGX-113 Dose A, or ARGX-113 Dose B body weight or placebo in 4 infusions administered 1-week apart in addition to Standard-of-Care (SoC) treatment. Patients aged 18 to 85 years (inclusive) with confirmed primary immune thrombocytopenia (ITP) who have a platelet count 30 109/L and who are receiving oral corticosteroids and/or permitted oral immunosuppressants and/or Thrombopoietin receptor (TPO-R) agonist as SoC which must be maintained on a stable dose and frequency for at least 4 weeks prior to Screening.

The study will include a 2-week Screening, a 3-week Treatment period, and an 21-week follow-up (FU) period. The study is followed by an open label period where patients will be given the option to be treated with ARGX-113 Dose A in cycles of 4 weekly infusions with a minimum of 4 weeks apart. Patients may receive rescue therapy during the study at the discretion the investigator when deemed medically necessary.

Clinical Study Identifier: NCT03102593

Recruitment Status: Closed


Brief Description Eligibility Contact Research Team


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