REGN7508 in Adult Participants for Prevention of Cancer-Associated Thrombosis

Key Inclusion Criteria: 1. Has a histologically confirmed diagnosis of malignant solid tumors which are locally advanced or metastatic as described in the protocol 2. Has a Khorana thromboembolic risk score ≥2 during screening period or harbors a somatic documented tumor genetic variant known to be associated with a similar increased risk of VTE as described in the protocol 3. Has an Eastern Cooperative Oncology Group (ECOG) Performance Status 0 to 2 at the time of screening and day 1 prior to the first dose of study intervention Key Exclusion Criteria: 1. Has known bleeding conditions (eg, Hemophilia A or B, von Willebrand's disease), hemorrhagic tumor sites, or other conditions with a high risk for bleeding (eg, hepatic disease associated with coagulopathy) 2. Has a cancer diagnosis consisting solely of basal cell or squamous cell skin carcinoma 3. Has a primary brain tumor or brain metastases as described in the protocol 4. Has proximal lower extremity DVT locally detected by Compression Ultrasound (CUS) during screening period 5. Has any condition that, as judged by the investigator, may confound the results of the study or would place the participant at increased risk of harm if he/she participated in the study Note: Other Protocol Defined Inclusion/ Exclusion Criteria Apply