RECRUITING Phase 3 ClinicalTrials.gov

Venous Thromboembolism (VTE) Prophylaxis With REGN7508 and REGN9933 in Adult and Adolescent Participants With a Peripherally Inserted Central Catheter (PICC)

Sponsor: Regeneron Pharmaceuticals • ClinicalTrials.gov ID: NCT07697599

Registry updated: 2026-09-29

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Description

This study is researching 2 different experimental drugs called REGN7508 and REGN9933 (called "study drugs"). The study is focused on people who have a tube placed in a vein to receive treatment (called Peripherally Inserted Central Catheter \[PICC\]). Patients with PICCs have a higher risk of getting blood clots which can block the veins (this is called Venous Thromboembolism \[VTE\]) and lead to serious health problems or be life threatening. The aim of the study is to see how well REGN7508 and REGN9933 prevent blood clots compared to placebo after PICC placement and to see if these medications cause certain types of bleeding. The study is looking at several other research questions, including: * What side effects may happen from taking the study drugs * How much study drug is in the blood at different times * Whether the body makes antibodies against the study drugs (which could make the drugs less effective or could lead to side effects) * If the study drugs affect the ability of the blood to clot normally

Interventions

REGN7508 (Drug)
Administered per the protocol
REGN9933 (Drug)
Administered per the protocol
Placebo (Drug)
Administered per the protocol

Eligibility criteria

Key Inclusion Criteria: 1. Is undergoing PICC placement for Intravenous (IV) administration of clinically indicated medications, including chemotherapy, antibiotics, TPN, and/or other indications as described in the protocol 2. Has Eastern Cooperative Oncology Group Performance (ECOG) Status ≤3 or equivalent functional status as described in the protocol 3. Has International Normalization Ratio (INR) and aPTT values no more than 25% above the upper limit as described in the protocol 4. Weighs at least 40 kg during the screening period Key Exclusion Criteria: 1. Has a history of prior venous thrombosis in the arm and/or ipsilateral thoracic central veins in which the PICC is to be placed 2. Has acute leukemia, myelodysplastic syndrome, or primary and secondary myelofibrosis 3. Has unresected luminal gastrointestinal (GI) (including esophageal) or unresected genitourinary (GU) malignancy 4. Has current or history of known brain tumors or brain metastases 5. Has any major cardiovascular event within approximately the past 30 days prior to study administration 6. Pre-existing central venous catheter or indwelling spinal or epidural catheter during the screening period Note: Other Protocol Defined Inclusion/ Exclusion Criteria Apply

Conditions

Venous Thromboembolism (VTE)

Locations

Arensia Exploratory Medicine at the Research Institute of Clinical Medicine — Tbilisi, Georgia

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Official Source

Data sourced from ClinicalTrials.gov, a service of the U.S. National Institutes of Health.

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