Summary
This is a Phase 1a/1b, dose-escalation/expansion, consecutive-cohort, open-label study to
evaluate the safety, tolerability, PK, PD, and preliminary evidence of antitumor activity
of PLN-101095 in combination with pembrolizumab (the study treatment regimen) in adult
participants with advanced or metastatic solid tumors for which pembrolizumab is
indicated but have documented disease progression (refractory [primary resistance]) or
relapsed [secondary resistance]) after at least 3 months from the start of treatment with
pembrolizumab.
The study will consist of 2 main parts:
- Part 1: Consecutive dose-escalation cohorts using a Bayesian optimal interval (BOIN)
dose escalation design
- Part 2: Dose-expansion cohorts using Simon's 2-stage design