A Study of JNJ-87890387 for Advanced Solid Tumors

A Phase 1 Study of JNJ-87890387, an Ectonucleotide Pyrophosphatase/Phosphodiesterase Family Member 3 (ENPP3) x CD3 Bispecific Antibody, for Advanced Solid Tumors

The purpose of this study is to determine safety and recommended phase 2 dose(s) (RP2Ds) of JNJ-87890387 and to determine the safety of JNJ-87890387 at the RP2D(s).

Inclusion Criteria:

• Have histologically or cytologically confirmed, metastatic, or unresectable solid tumor of one of the following types: a) Renal cell cancer (RCC)-clear cell or papillary carcinoma; b) Endometrioid ovarian cancer c) Endometrioid uterine carcinoma; d) Colorectal adenocarcinoma (CRC); e) Lung adenocarcinoma
• Have measurable or evaluable disease: Part 1- Either measurable or evaluable disease; Part 2- At least 1 measurable lesion per RECIST v1.1. Participants with ovarian cancer without a measurable lesion must have disease evaluable per Response Evaluation Criteria in Solid Tumors (RECIST v1.1) or have cancer antigen (CA) 125 greater than (>) 2*upper limit of normal (ULN) during screening
• All participants in Part 1 and Part 2 must consent to provide an archived tumor tissue sample at screening
• Have an Eastern Cooperative Oncology Group (ECOG) performance status of 0 to 1 at screening
• Be willing and able to adhere to the lifestyle restrictions specified in this protocol.

Exclusion Criteria:

• Active Central Nervous System (CNS) involvement with the exception of locally treated brain metastases that are clinically stable and asymptomatic for > 2 weeks and who are off or receiving low-dose corticosteroid treatment (less than or equal to [<=]10 milligrams [mg] prednisone or equivalent) for at least 2 weeks prior to start of study treatment
• Toxicity from prior anticancer therapy that has not resolved to Grade <=1 (except alopecia, vitiligo, Grade <=2 peripheral neuropathy, or endocrinopathies that are stable on hormone replacement)
• History of Grade greater than or equal to (>=) 2 immune-related AE(s) with prior immunotherapy that led to discontinuation of previous immunotherapy with the exception of Grade 2 and Grade 3 immune-related AEs that responded to treatment and that did not recur following rechallenge. Endocrinopathies that are stable on hormone replacement therapy or that have resolved are allowed.
• History of solid organ or hematologic stem cell transplantation
• Any episode of partial or complete bowel obstruction requiring hospitalization within 30 days prior to first dose of study treatment