The Primary purpose of this study is to identify the recommended Phase 2 dose \[RP2D(s)\] for JNJ-63723283 in Part 1, to assess the anti-tumor activity of JNJ-63723283 at the RP2D(s) in participants with selected advanced cancers including non-small-cell lung cancer (NSCLC), melanoma, renal, bladder, small-cell lung cancer (SCLC), gastric/esophageal cancer, and high-level microsatellite instability (MSI-H) or mismatch repair-deficient (dMMR) colorectal cancer (CRC) in Part 2, to determine one or more additional RP2Ds in Parts 3 and 4.
Phase 1 trials primarily test safety and dosing in a small number of participants (typically 20–100). Results do not yet speak to efficacy. FDA approval is typically many years away from this stage.
Phase 2 trials begin testing efficacy in a larger patient group (100–300). This is often where biotech binary events occur — positive Phase 2 data can significantly advance a company's pipeline narrative, while failures can be terminal for a program.
Enrollment is complete. The trial is in its follow-up or data collection phase — a readout may occur on or near the primary completion date.
Johnson & Johnson (JNJ) is the sponsoring company for this trial. BiotechSign currently grades this company C (51/100) based on composite catalyst signals across its full pipeline. This trial is one data point in that overall catalyst picture.