Pembrolizumab + Poly-ICLC in MRP Colon Cancer

• Status: Recruiting
• Trial end date: 2022-12-01
• Target enrollment: 0
• Participant gender: All

Summary

The main purpose of this study is to determine the dose of poly-ICLC that is safe and tolerable when it is combined with pembrolizumab in patients with colon cancer. This study will also evaluate how the combination of pembrolizumab and poly-ICLC activates the immune system in the patient's blood and inside the tumor; how it affects the size and number of tumor(s) in each patient; and how effective the combination is in patients with colon cancer that is unlikely to respond to pembrolizumab alone.

• Phase: Phase 1/Phase 2
• Accepts Healthy Volunteers?: No

Details

• Lead Sponsor: Asha Nayak; Samir N. Khleif
• Collaborators: Merck Sharp & Dohme Corp.; Oncovir, Inc.
• Treatments: Carboxymethylcellulose Sodium; Pembrolizumab; Poly I-C; Poly ICLC

Criteria

Diagnosis/Condition for Entry into the Trial Phase 1 - Presence of histologically confirmed malignancy that has progressed following at least one therapy and able to be visualized on imaging. Measurable disease is not required. Patients with known targetable mutations must have progressive disease on the appropriated targeted drug therapy.

Phase 2 - Presence of MRP colon cancer that has progressed following at least two lines of therapy. Ten patients will be included who have disease that can be biopsied pre- and post-therapy.

Inclusion Criteria:

• Be willing and able to provide written informed consent for the trial

• Have measurable disease based on RECIST 1.1 (Phase 2)

• Be willing to provide tissue from a newly obtained core or excisional biopsy of a tumor lesion

• Have a performance status of 0 or 1 on the ECOG Performance Scale

• Have adequate organ function, according to screening labs performed within 10 days of treatment initiation

• Subjects of childbearing potential must be willing to use an adequate method of contraception for the course of the study through 120 days after the last dose of study medication

Exclusion Criteria:

• Currently participating/previously participated in a therapeutic study and received study therapy or used an investigational device within 4 weeks of the first dose of treatment

• Has a diagnosis of immunodeficiency or is receiving systemic steroid therapy or any other form of immunosuppressive therapy within 7 days prior to the first dose of trial treatment

• Has a known history of active TB (Bacillus Tuberculosis)

• Hypersensitivity to pembrolizumab or any of its excipients

• Has a known additional malignancy that is progressing or requires active treatment. Exceptions include basal cell carcinoma of the skin or squamous cell carcinoma of the skin that has undergone potentially curative therapy or in situ cervical cancer

• Has received prior therapy with an anti-PD-1, anti-PD-L1, or anti-PD-L2 agent

• Has a known history of Human Immunodeficiency Virus (HIV) (HIV 1/2 antibodies), active Hepatitis B (e.g., HBsAg reactive) or Hepatitis C (e.g., HCV RNA [qualitative] is detected).

• Has known active central nervous system (CNS) metastases and/or carcinomatous meningitis.

• Has active autoimmune disease that has required systemic treatment in the past 2 years