a study evaluating tas-102 plus nivolumab in patients with mss crc

Conditions: Refractory Metastatic Colorectal Cancer

Summary: a phase 2 study with safety lead-in, evaluating tas-102 plus nivolumab in participants with microsatellite stable refractory metastatic colorectal cancer

this is a multicenter, single arm, safety lead-in, phase 2 study, using simon's 2 stage design evaluating the safety and efficacy of tas-102 plus nivolumab in participants with microsatellite-stable refractory metastatic colorectal cancer stage 1: participants will be enrolled and after cycle 1 treatment, they will be evaluated for the safety and tolerability of the combination therapy. assuming a tolerated dose is confirmed additional participants evaluable for response will be enrolled and followed for a minimum of 6 months and there will be an interim analysis to assess the safety and efficacy to determine whether the second stage will open for enrollment. stage 2: additional participant evaluable for response assessment will be enrolled and followed for a minimum of 6 months.

Eligibility criteria:
inclusion criteria: 1. has provided written informed consent. 2. participants with confirmed histologically proven metastatic or locally advanced colorectal adenocarcinoma who are microsatellite stable (mss) (ie, not microsatellite instable \[msi\]) based on either an analysis of tissue from a prior biopsy or based on tissue from a new biopsy. 3. participants with the presence of at least 1 lesion with measurable disease as defined by 10 millimeters (mm) in the longest diameter for a soft tissue lesions or 15 mm in the short axis for a lymph node by response evaluation criteria in solid tumors (recist) and immune related response-criteria (irrc) for a response assessment. 4. participants has received at least 2 prior lines of standard chemotherapies for metastatic colorectal cancer (mcrc) and is refractory to or failing those chemotherapies. 5. age greater than or equal to (\>=) 18 years. 6. eastern cooperative oncology group performance status of 0 to 1 7. life expectancy of \>=4 months. 8. has adequate organ function. 9. women of childbearing potential must have a negative pregnancy test (urine or serum) within 7 days before starting study drugs. is able to take medications orally. 10. is able to take medications "orally". exclusion criteria: 1. has a serious illness or medical condition. 2. treatment with any of the following within the specified time frame before enrollment: 1. major surgery within the past 4 weeks (the surgical incision should be fully healed before study drug administration). 2. any anticancer therapy within the past 3 weeks before enrollment. 3. extended field radiation within the past 4 weeks or limited field radiation within the past 2 weeks before enrollment. 4. any investigational drug/device received within the past 4 weeks or 5 times the half-life (whichever is shorter) before enrollment. 3. previous treatment with tas-102. 4. prior treatment with anti-programmed cell death-1 (anti-pd-1), anti-programmed cell death ligand (anti-pd-l1), anti programmed cell death ligand 2, anti-cd137, anti-ox-40, anti cd40, anti cytotoxic t lymphocyte associated antigen-4 antibodies, or any other immune checkpoint inhibitors. 5. unresolved toxicity of \>=common terminology criteria for adverse events version (ctcae) version 4.03 grade 2 attributed to any prior therapies (excluding anemia, alopecia, skin pigmentation, and platinum induced neurotoxicity). 6. prior events of immune-mediated pneumonitis, immune-mediated colitis, immune-mediated hepatitis, immune-mediated endocrinopathies, immune mediated nephritis and renal dysfunction, immune mediated rash, immune mediated encephalitis, and history of infusion reactions to nivolumab. 7. known or assumed hypersensitivity to tas-102 or nivolumab or any of its ingredients, including polysorbate 80-containing infusion. 8. previous severe hypersensitivity reaction to treatment with another mab. 9. pregnant or lactating female. 10. inappropriate for entry into this study in the judgment of the investigator.

Keywords: refractory metastatic colorectal cancer tas-102 nivolumab microsatellite stable programmed cell death protein1 (pd 1)