A Phase 1b/2 Study of Combination Immunotherapy for the Treatment of Chemotherapy-refractory Metastatic Microsatellite Stable (MSS) Colorectal Cancer (CRC)
Dan Feng
Summary
Phase 1b/2 open-label study evaluates the safety, tolerability, and efficacy of combination immunotherapy with nadunolimab (anti-IL-1RAP) and toripalimab (anti-PD-1) in patients with chemotherapy-refractory metastatic microsatellite stable (MSS) colorectal cancer. Phase 1b will assess dose-limiting toxicity (DLT), while Phase 2 will evaluate objective response rate (ORR), including progression-free survival (PFS), overall survival (OS), disease control rate (DCR), and duration of response (DOR). Exploratory analyses will investigate immunomodulatory effects through tumor and peripheral blood studies, and treatment will continue every 3 weeks for up to 1 year or until disease progression.
Description
This is a Phase 1b/2, open-label study evaluating the safety, tolerability, and efficacy of nadunolimab (anti-IL-1RAP) in combination with toripalimab (anti-PD-1) in adults with chemotherapy-refractory metastatic microsatellite stable (MSS) colorectal cancer. The Phase 1b portion serves as a safety run-in with up to 6 subjects to assess the safety of a single dose of the combination therapy. Following this, Phase 2 will enroll up to 21 subjects, with the first 6 from Phase 1b included in the Phase 2 analysis to assess the primary efficacy endpoint. Eligible participants must have biopsy-confir…
Eligibility
- Age range
- 18+ years
- Sex
- All
- Healthy volunteers
- No
Inclusion Criteria: * Patients must have a pathologically confirmed diagnosis of non-MSI-H/pMMR CRC. * Patients must have progressed (clinically or radiographically) on or after standard chemotherapy, including fluoropyrimidines, oxaliplatin, and irinotecan, or are intolerant to standard chemotherapy. Patients may have received, if eligible, anti-VEGF or anti-EGFR antibodies in combination with chemotherapy. * Patients must have at least 1 measurable target lesion at baseline ≥ 10mm in the longest diameter. * Patient must be willing and able to provide blood samples (6 heparinized, and two st…
Interventions
- DrugNadunolimab
5 mg/kg intravenously (IV) every 3 weeks (Q3W)
- DrugToripalimab
240 mg IV every 3 weeks (Q3W)
Location
- Icahn School of Medicine at Mount SinaiNew York, New York