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KRAS-Targeted Vaccine Combined With Balstilimab and Botensilimab for Patients With Stage IV MMR-p Colorectal Cancer and Pancreatic Ductal Cancer

NCT06411691 · Status: RECRUITING · Phase: PHASE1 · Type: INTERVENTIONAL · Enrollment: 54

Last updated 2025-12-18

No results posted yet for this study

Summary

Phase 1b study evaluating the efficacy and immune response to a synthetic long peptide mutant KRAS vaccine (SPL mKRASvax) combined with Balstilimab and Botensilimab for unresectable or metastatic mismatch repair-proficient (MMR-p) colorectal cancer (mCRC) or unresectable or metastatic MMR-p pancreatic ductal adenocarcinoma (PDAC) patients with measurable disease following first-line chemotherapy.

Conditions

Interventions

DRUG

KRAS Vaccine with Poly-ICLC adjuvant

SLP mKRASvax with Poly-ICLC adjuvant will be administered on days 1, 8, 15 and 22 in Cycle 1 (Prime Phase) and on day 1 in cycle 4 and every other cycle and beyond (Boost Phase). Up to 5 subcutaneous injections will be administered in the upper thighs, arms and/or back. Drug: 0.3 mg per peptide vaccine + 0.5mg Poly-ICLC

DRUG

Balstilimab

240 mg will be administered as a 30 minute IV. Infusion (-10/+25 minutes) on day 1 and day 15 during Cycle 1 in Prime Phase and on day 1 and day 15 of every cycle in the Boost Phase beginning on Cycle 2 (for a maximum of 2 years from initial vaccination). Drug: 240 mg IV

DRUG

Botensilimab

75 mg will be administered as a 30 minute IV. Infusion (-10/+25 minutes) on Cycle 1 day 1 in Prime Phase and on Cycle 2 day 15 in the Boost Phase. Drug: 75 mg IV

Sponsors & Collaborators

  • Agenus Inc.

    collaborator INDUSTRY

  • Private Philanthropic Funds

    collaborator OTHER

  • National Cancer Institute (NCI)

    collaborator NIH

  • United States Department of Defense

    collaborator FED

  • Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins

    lead OTHER

Principal Investigators

  • Nilofer Azad, MD · SKCCC Johns Hopkins Medical Institution

Study Design

Allocation
NA
Purpose
TREATMENT
Masking
NONE
Model
SINGLE_GROUP

Eligibility

Min Age
18 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2025-06-24
Primary Completion
2028-03-01
Completion
2029-07-01
FDA Drug
Yes

Countries

  • United States

Study Locations

More Related Trials

Entities

Diseases

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT06411691 on ClinicalTrials.gov