Single-arm Study of IgPro20 in Adults With Secondary Immune Deficiencies Due to Hematologic Malignancies Treated With B-cell Targeting Chimeric Antigen Receptor T-cell and T-cell Redirecting Therapies
NCT07648264 · Status: NOT_YET_RECRUITING · Phase: PHASE3 · Type: INTERVENTIONAL · Enrollment: 63
Last updated 2026-07-22
Summary
This is a prospective, multicenter, open-label, single-arm study to assess the efficacy, safety, and pharmacokinetics (PK) of IgPro20 in adults with hematologic malignancies treated with B-cell targeting Chimeric antigen receptor T-cell (CAR T-cell) and T-cell redirecting therapies (such as T-cell engager bispecific antibody \[TCE BsAb\] therapy). The primary objective is to demonstrate that true annualized rate of serious bacterial infection (SBIs) is less than (\<) 1.0.
This study includes two cohorts:
1. Loading Cohort: Participants with serum immunoglobulin G (IgG) \< 500 milligrams per deciliter (mg/dL) at Screening, with or without ongoing immunoglobulin replacement therapy (IgRT) during Screening, who must have received five doses of IgPro20 during the Initial Treatment Period.
2. Maintenance-only Cohort: Participants with serum IgG greater than or equal to (≥) 500 mg/dL and ongoing IgRT at Screening, who must have received one dose of IgPro20 during the Initial Treatment Period.
Conditions
- Secondary Immune Deficiency
Interventions
- BIOLOGICAL
-
IgPro20
IgPro20 infusion administered SC.
Sponsors & Collaborators
-
CSL Behring
lead INDUSTRY
Study Design
- Allocation
- NA
- Purpose
- TREATMENT
- Masking
- NONE
- Model
- SINGLE_GROUP
Eligibility
- Min Age
- 18 Years
- Sex
- ALL
- Healthy Volunteers
- No
Timeline & Regulatory
- Start
- 2026-07-24
- Primary Completion
- 2029-02-16
- Completion
- 2029-02-16
- FDA Drug
- Yes
Countries
- United States
- Belgium
- Canada
- Czechia
- Denmark
- France
- Germany
- Italy
- Poland
- Spain
- United Kingdom
Study Locations
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