About this trial
This is a Phase I, open-label dose finding study to assess the safety, manufacturing feasibility, and preliminary efficacy of TCR1188-ABC cells in patients with KRAS-mutated cancers. Initially, patients with KRAS G12V mutation positive metastatic pancreatic adenocarcinoma, cholangiocarcinoma, colorectal cancer, or non-small cell lung cancer (NSCLC) will be targeted for participation. Up to 4 total dose levels will be evaluated using a 3+3 dose escalation design.
Eligibility criteria
This trial does not accept healthy volunteersQualifiers
Patients ≥ 18 years of age
Histologically confirmed metastatic pancreatic adenocarcinoma or cholangiocarcinoma
Histologically confirmed metastatic colorectal cancer
Histologically confirmed metastatic non-small cell lung cancer
Disqualifiers
Active hepatitis B or hepatitis C infection
Patients with a severe acquired or inherited immunodeficiency, including HIV positive patients with a CD4 count ≤ 350 cells/μL. In order to qualify, HIV positive patients must also be on an established antiretroviral therapy regimen with a viral load of <400 copies/mL.
Any other active, uncontrolled infection.
Class III/IV cardiovascular disability according to the New York Heart Association Classification (see Appendix 5).
Trial design
Sequential
Treatments tested in this trial
TCR1188-ABC cells
Biological/VaccineTCR1188 modified, base-edited autologous CD4+ and CD8+ T cells expressing TCR1188 and a scFv fragment specific to ILT4 (LILRB2) as a Single infusion on Day 0
Fludarabine + Cyclophosphamide combination
DrugFludarabine: 30 mg/m2/day x 4 days (Day -7 to -4) Cyclophosphamide: 600mg/m2/day x 3 days (Day -7 to -5)
Tocilizumab
DrugSingle administration of 8mg/kg on Day 2 (+3d)
Treatment groups
Trial outcomes
Primary outcomes
Number of Subjects with treatment related adverse events using NCI Common Terminology Criteria for Adverse Events (CTCAE) V6.0
Type, frequency, severity, and attribution of adverse events
Occurrence of dose-limiting toxicities (DLTs)
Type, frequency, severity, and attribution of dose limiting adverse events as defined by the protocol
Identification of the maximum tolerated dose (MTD)
The highest dose at which 0 or 1 DLT occurs in 6 DLT-evaluable subjects will be declared the MTD.
Secondary outcomes
Occurrence of product release failures
Calculated based on the proportion of subjects with TCR1188-ABC cell products that fail to meet the product release criteria, out of the number of eligible subjects in whom manufacturing was attempted, will be calculated.
Proportion of TCR1188-ABC cells that fail to meet the protocol-defined dose
Proportion of subjects with TCR1188-ABC cell products that fail to meet the assigned dose, out of the number of eligible subjects in whom manufacturing was attempted.
Overall Response Rate (ORR)
Proportion of subjects with CR or PR as the best overall response as assessed by RECIST 1.1 from the first response assessment post-infusion until the end of the primary follow-up.
Duration of Response (DOR)
Duration of time from the date the response criteria of CR or PR is first met, to the date of confirmed disease progression, or the date of the last adequate disease assessment performed before the occurrence of another censoring event.
Sponsors and contacts
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University of Pennsylvania
Lead sponsor
National Cancer Institute (NCI)
Collaborator