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Spots Global Cancer Trial Database for Study of Pembrolizumab With Pemetrexed and Oxaliplatin in Chemo-Refractory Metastatic Colorectal Cancer Patients

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Trial Identification

Brief Title: Study of Pembrolizumab With Pemetrexed and Oxaliplatin in Chemo-Refractory Metastatic Colorectal Cancer Patients

Official Title: A Phase IB Study of Pembrolizumab in Combination With Pemetrexed and Oxaliplatin in Patients With Chemo-Refractory Metastatic Colorectal Cancer

Study ID: NCT03626922

Study Description

Brief Summary: This is a Phase Ib study to evaluate the safety and preliminary anti-tumor activity of pembrolizumab in combination with pemetrexed with or without oxaliplatin in patients with chemo-refractory microsatellite stable (MSS) metastatic colorectal cancer (mCRC) without any further standard treatment options.

Detailed Description: The co-primary endpoints of the study are to 1) establish the recommended Phase II dose (RP2D) of pembrolizumab in combination with pemetrexed and oxaliplatin and 2) evaluate the antitumor efficacy. The secondary aims of the study are to 1) evaluate the clinical benefit rate (CBR) of pembrolizumab in combination with pemetrexed and with pembrolizumab in combination with pemetrexed and oxaliplatin in patients with chemo-refractory MSS mCRC and 2) to estimate the progression free survival (PFS) and 3) overall survival (OS) in patients with MSS mCRC treated with pembrolizumab and pemetrexed or with pembrolizumab in combination with pemetrexed and oxaliplatin. Patients enrolled to Cohort 1 will receive: pembrolizumab 200mg IV and pemetrexed 500 mg/m2 on Day 1 of each 21 day cycle. Cohort 2 (the dose escalation portion of the study) will be a standard "3+3" design; 2 dose levels are planned. The first 3 to 6 patients in cohort 2 will be treated at dose level 1 and will receive pembrolizumab 200 mg IV, pemetrexed 500 mg/m2 IV and oxaliplatin 85 mg/ m2 on Day 1 of each 21 day cycle. If 1 of 3 patients in this cohort experiences a dose-limiting toxicity (DLT), see Section 6.4, 3 more patients will be added at the same dose level. If 0 of 3 initial patients or 1 of 6 patients in the cohort experiences a DLT, the dose for the next cohort will be escalated to dose level 2 and will receive pembrolizumab 200 mg IV, pemetrexed 500 mg/m2 IV and oxaliplatin 120 mg/ m2 on Day 1 of each 21 day cycle; otherwise, the combination will be considered too toxic. If ≥ 2 DLTs are experienced at any dose level, the combination will be considered too toxic and the next lower dose level will be considered the RP2D. A total of 12 patients will be treated at the RP2D as the expansion portion. Patients in both cohorts will continue to receive study therapy (maximum of 35 cycles) unless therapy is discontinued due to patient election, toxicity, or disease progression. Dose limiting toxicity (DLT) will be monitored during the first 21 days (Cycle 1) of each dose level in Cohort 2 and will be used for purposes of dose escalation and determination of RP2D. A DLT is defined as a non-hematologic adverse event (AE) of grade ≥ 3 or a hematologic toxicity of grade ≥ 4. Toxicity will be graded according to the National Cancer Institute (NCI) Common Terminology Criteria for Adverse Events version 4.0. The highest dose level tolerable without dose limiting toxicities (DLTs) in \< 2 of 6 patients will be considered the recommended phase 2 dose (RP2D) and be expanded to 12 patients. The maximum total enrollment of the study is 33 patients. In Cohort 1, a total of 15 patients with chemo-refractory MSS mCRC will be treated for further safety assessment and a preliminary signal. In Cohort 2, 3 to 6 patients will be accrued per dose level. A total of 12 patients with chemo-refractory MSS mCRC will be treated on the RP2D for further safety and preliminary efficacy signal. Cohort 1 and Cohort 2 will be analyzed separately. Efficacy will be evaluated as the individual best overall response as defined by a modified RECIST 1.1 (mRECIST 1.1). The objective response rate (complete response \[CR\] and partial response \[PR\]) will be determined. In either dose level cohort \> 3 patients (\> 3 of 18) with objective response (PR or CR) will warrant further investigation.

Eligibility

Minimum Age: 18 Years

Eligible Ages: ADULT, OLDER_ADULT

Sex: ALL

Healthy Volunteers: No

Locations

UF Health Davis Cancer Pavilion & Shands Medical Plaza, Gainesville, Florida, United States

Cancer Care Specialists of Central Illinois, Decatur, Illinois, United States

Decatur Memorial Hospital, Decatur, Illinois, United States

Crossroads Cancer Center, Effingham, Illinois, United States

Cancer Care Specialists of Central IL-Swansea, Swansea, Illinois, United States

University of Michigan-Oncology, Ann Arbor, Michigan, United States

University of Michigan, Ann Arbor, Michigan, United States

University of Michigan-Brighton Center for Specialty Care, Brighton, Michigan, United States

Minnesota Oncology-Minneapolis, Minneapolis, Minnesota, United States

Hennepin County Medical Center, Minneapolis, Minnesota, United States

HealthPartners Riverside Clinic, Minneapolis, Minnesota, United States

Hubert H. Humphrey Cancer Center, Robbinsdale, Minnesota, United States

Metro Minnesota Community Oncology Research Consortium-MMCORC, Saint Louis Park, Minnesota, United States

Thomas Jefferson University Hospital-Sidney Kimmel Cancer Network, Philadelphia, Pennsylvania, United States

UPMC Hillman Cancer Center, Pittsburgh, Pennsylvania, United States

Contact Details

Name: Norman Wolmark, MD

Affiliation: NSABP Foundation Inc

Role: PRINCIPAL_INVESTIGATOR

Useful links and downloads for this trial

Clinicaltrials.gov

Google Search Results

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