NCT06699836

The Phase-2 CCR5-targeting Leronlimab With Oral Chemotherapy and VEGF-inhibitor Enriched Regimen Trial (CLOVER)

A Phase Two Study Evaluating Two Doses of Leronlimab (PRO 140) In Combination With Trifluridine + Tipiracil (TAS-102) + Bevacizumab in Participants With Microsatellite Stable (MSS), Relapsed Refractory Metastatic Colorectal Cancer (mCRC)

• Status: Recruiting
• Phase: Phase 2
• Study type: Interventional
• Enrollment: 60 (estimated)
• Sponsor: CytoDyn, Inc. · Industry
• Sex: All
• Age: 18 Years
• Healthy volunteers: Not accepted

Summary

This is an open label, randomized, two arm, multi-center study to explore the effect of leronlimab on the overall response rate/ overall survival and safety and tolerability when used in combination with trifluridine and tipiracil + bevacizumab in patients with MSS, mCRC who have progressed on prior treatment before participating in the study. The main questions this study aims to answer are: 1. Can leronlimab, in combination with standard of care therapies trifluridine and tipiracil+ bevacizumab, increase the objective response rate in persons with MSS, mCRC who have progressed on prior treatment before participating in the study. 2. Is leronlimab safe and well tolerated in these subjects when used in combination with standard of care therapies trifluridine and tipiracil+ bevacizumab.

Detailed description

This is an open label, randomized, two arm, multi-center study to explore the effect of leronlimab on the overall response rate/ overall survival and the safety and tolerability when used in combination with trifluridine and tipiracil + bevacizumab in patients with MSS, relapsed refractory, mCRC who have received and progressed, or are intolerant, of at least two prior standard of care treatment regimes, which may have included fluoropyrimidine, oxaliplatin, or irinotecan chemotherapy, an anti-VEGF therapy, and, if RAS wild-type and medically appropriate, an anti-EGFR therapy. This study will enroll approximately 60 participants, 30 participants in each of two arms evaluating either 350 mg or 700 mg of leronlimab, who are 18 years of age or older, with histologically confirmed metastatic colorectal cancer that is microsatellite stable (MSS). Participants will be randomized 1:1 to each arm, where approximately 30 participants will receive 350 mg of leronlimab + trifluridine and tipiracil + bevacizumab and approximately 30 will receive 700 mg of leronlimab + trifluridine and tipiracil + bevacizumab.

Conditions

• Metastatic Colorectal Cancer (mCRC)

Interventions

Type	Name	Description
DRUG	350 mg leronlimab	Leronlimab (PRO) 140 is a humanized IgG4, monoclonal antibody (mAb) to the C-C chemokine receptor type 5 (CCR5)
DRUG	700 mg leronlimab	Leronlimab (PRO) 140 is a humanized IgG4, monoclonal antibody (mAb) to the C-C chemokine receptor type 5 (CCR5)

Timeline

• Start date: 2025-06-16
• Primary completion: 2028-01-01
• Completion: 2028-03-01
• First posted: 2024-11-21
• Last updated: 2026-04-03

Locations

7 sites across 1 country: United States

Regulatory

• FDA-regulated drug study