Inclusion Criteria:

* At least 18 years of age.
* Histologically or cytologically confirmed advanced solid tumors

* Arm #1 (Monotherapy): HRAS-mutant and/or amplified tumors (any solid tumor type); HRAS overexpression (only for HNSCC tumors); KRAS and/or NRAS, and/or HRAS-mutant and/or amplified NSCLC or CRC; KRAS-mutant and/or amplified PDAC
* Arm #2 (Combination): Must have received at least 1 prior systemic therapy with IO-based treatment for locally advanced or metastatic RCC with predominantly clear cell subtype
* Arm #3 (Combination): Must have KRAS G12C-mutant locally advanced or metastatic NSCLC and have received at least 1 prior systemic therapy for advanced or metastatic NSCLC
* Measurable disease by Response Evaluation Criteria in Solid Tumors (RECIST) v1.1.
* Karnofsky Performance Status of 70 or higher with no clinically significant deterioration over the previous 2 weeks.
* Acceptable liver, renal, endocrine, and hematologic function.
* Other protocol-defined inclusion criteria may apply.

Exclusion Criteria:

* Ongoing treatment with certain anticancer agents.
* Prior treatment with an FTI or HRAS inhibitor.
* Major surgery, other than local procedures, within 28 days prior to Cycle 1 Day 1, without complete recovery.
* Spinal cord compression, leptomeningeal disease, or clinically active CNS metastases.
* Toxicity (excluding alopecia) from prior therapy that has not been completely resolved to baseline at the time of consent.
* Active or prior documented autoimmune or inflammatory disorders within the past 5 years prior to Cycle 1 Day 1 (with exceptions).
* Active, uncontrolled bacterial, viral, or fungal infections requiring systemic therapy.
* Inability to swallow, impairment of gastrointestinal (GI) function or GI disease that may significantly alter the absorption of the trial drugs.
* Inadequate cardiac and/or vascular function, including receipt of treatment for unstable angina, myocardial infarction, and/or cerebro-vascular attack within the prior 6 months, mean QTcF ≥470 ms, or Class II or greater congestive heart failure.
* Other invasive malignancy within 2 years.
* Other protocol-defined exclusion criteria may apply.

Note: Other protocol defined Inclusion/Exclusion Criteria may apply.

Eligibility last updated 10/18/2024. Questions regarding updates should be directed to the study team contact.