RECRUITING

A Phase 2 Study of Leronlimab in Combination With TAS-102 + Bevacizumab in Previously Treated Participants With mCRC

Conditions

Metastatic Colorectal Cancer (mCRC)Microsatellite Stable Metastatic Colorectal Cancer

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Study Overview

This clinical trial focuses on testing the efficacy of different digital interventions to promote re-engagement in cancer-related long-term follow-up care for adolescent and young adult (AYA) survivors of childhood cancer.

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 safety and tolerability when used in combination with trifluridine and tipiracil + bevacizumab in patients with CCR5+, 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 CCR5+, 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.

Official Title

A Phase Two Study Evaluating Two Doses of Leronlimab (Pro 140) In Combination With Trifluridine + Tipiracil (TAS-102) + Bevacizumab in Participants With CCR5+, Microsatellite Stable (MSS), Relapsed Refractory Metastatic Colorectal Cancer (mCRC)

Quick Facts

Study Start:2025-05-30

Study Completion:2028-08

Study Type:Not specified

Phase:Not Applicable

Enrollment:Not specified

Status:RECRUITING

Study ID

NCT06699836

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Ages Eligible for Study:18 Years

Sexes Eligible for Study:ALL

Accepts Healthy Volunteers:No

Standard Ages:ADULT, OLDER_ADULT

Inclusion Criteria	Exclusion Criteria
1. Male or female subjects age ≥ 18 years with a history of treated colorectal cancer with unresectable metastases of the primary colorectal cancer to other organs. 2. If HIV-1 positive, viral load must be \< 50 copies/ml and participant must be on stable ART for at least 3 months. 3. Demonstrate positive tumor expression of CCR5 by IHC. 4. Adult patients with metastatic colorectal cancer (mCRC) who have been previously treated with fluoropyrimidine-, oxaliplatin-, and irinotecan-based chemotherapy, an anti-VEGF therapy, and, if RAS wild-type and medically appropriate, an anti-EGFR therapy. 5. Histologically confirmed for microsatellite stable MSS colorectal cancer by PCR, Immunohistochemistry (IHC) or Next-generation sequencing (NGS). 6. Have measurable disease per RECIST 1.1 7. Have an Eastern Cooperative Oncology Group (ECOG) performance status of 0 or 1. 8. Expected survival of at least three months 9. No anti-cancer treatment within the last four weeks or at least 5 half-lives prior to treatment (except for palliative radiation therapy from which the patient has recovered from all adverse events). 10. Patients must have adequate organ and bone marrow function within 28 days prior to registration, defined as: 1. Total bilirubin ≤ 1.5 × upper limit of normal (ULN) OR direct bilirubin ≤ ULN for participants with total bilirubin levels \> 1.5 × ULN 2. Aspartate aminotransferase (AST) and alanine aminotransferase (ALT) ≤ 2.5 × ULN (≤ 5 × ULN for participants with liver metastases). 1. Hemoglobin ≥ 9 g/dL Note: Criteria must be met without packed red blood cell (pRBC) transfusion within the prior 2 weeks. Participants can be on stable dose of erythropoietin (≥ approximately 3 months). 2. White blood cells \> 2500/µL 3. Absolute neutrophil count \> 1500/µL 4. Platelet count \> 100 000/µL. 11. Clinically normal resting 12-lead ECG at Screening Visit or, if abnormal, considered not clinically significant by the Principal Investigator. 12. Both male and female patients and their partners of childbearing potential must agree to use two medically accepted methods of contraception (e.g., barrier contraceptives \[male condom, female condom, or diaphragm with a spermicidal gel\], hormonal contraceptives \[implants, injectables, combination oral contraceptives, transdermal patches, or contraceptive rings\], or one of the following methods of birth control (intrauterine devices, tubal sterilization or vasectomy) or must practice complete abstinence from intercourse of reproductive potential from study entry to 6 months after the last day of treatment (excluding women who are not of childbearing potential and men who have been sterilized). 13. Females of childbearing potential (FOCBP) must have a negative serum pregnancy test at Screening Visit and negative urine pregnancy test prior to receiving the first dose of study. 14. Male participants must agree to use contraception and refrain from donating sperm for at least 120 days after the last dose of study intervention. 15. Patients must have the ability to understand and the willingness to sign a written informed consent prior to registration on study.	1. Known severe hypersensitivity towards monoclonal antibodies. 2. Clinically significant active coronary heart disease and cardiovascular insufficiency with hypotension (systolic blood pressure \<100 mmHg) per PI discretion 3. Prior history of other malignancies, except early-stage prostate cancer or basal cell carcinoma that has been surgically resected. 4. Active hepatitis B (defined as having a positive hepatitis B surface antigen \[HBsAg\] test) or hepatitis C or known viral infections. 5. Are pregnant or breastfeeding or expecting to conceive or father children within the projected duration of the study, starting with the Screening Visit through 120 days after the last dose of study intervention. 6. Has known psychiatric or substance abuse disorders that would interfere with cooperation with the requirements of the trial. 7. Stroke and/or transient ischemic attack within 6 months prior to screening. 8. Placement of a cardiac stent or bypass surgery within 6 months of screening 9. Tumor invasion of a large vascular structure (e.g., pulmonary artery, superior or inferior vena cava). 10. Is currently participating in or has participated in a study of an investigational agent or has used an investigational device within 4 weeks prior to the first dose of study treatment. 11. Active, uncontrolled bacterial, viral, or fungal infections, requiring systemic therapy. 12. Use of anabolic steroids within 6 months of screening 13. Inability to follow protocol.

Inclusion Criteria

Exclusion Criteria

1. Male or female subjects age ≥ 18 years with a history of treated colorectal cancer with unresectable metastases of the primary colorectal cancer to other organs.
2. If HIV-1 positive, viral load must be \< 50 copies/ml and participant must be on stable ART for at least 3 months.
3. Demonstrate positive tumor expression of CCR5 by IHC.
4. Adult patients with metastatic colorectal cancer (mCRC) who have been previously treated with fluoropyrimidine-, oxaliplatin-, and irinotecan-based chemotherapy, an anti-VEGF therapy, and, if RAS wild-type and medically appropriate, an anti-EGFR therapy.
5. Histologically confirmed for microsatellite stable MSS colorectal cancer by PCR, Immunohistochemistry (IHC) or Next-generation sequencing (NGS).
6. Have measurable disease per RECIST 1.1
7. Have an Eastern Cooperative Oncology Group (ECOG) performance status of 0 or 1.
8. Expected survival of at least three months
9. No anti-cancer treatment within the last four weeks or at least 5 half-lives prior to treatment (except for palliative radiation therapy from which the patient has recovered from all adverse events).
10. Patients must have adequate organ and bone marrow function within 28 days prior to registration, defined as:
1. Total bilirubin ≤ 1.5 × upper limit of normal (ULN) OR direct bilirubin ≤ ULN for participants with total bilirubin levels \> 1.5 × ULN
2. Aspartate aminotransferase (AST) and alanine aminotransferase (ALT) ≤ 2.5 × ULN (≤ 5 × ULN for participants with liver metastases).
1. Hemoglobin ≥ 9 g/dL Note: Criteria must be met without packed red blood cell (pRBC) transfusion within the prior 2 weeks. Participants can be on stable dose of erythropoietin (≥ approximately 3 months).
2. White blood cells \> 2500/µL
3. Absolute neutrophil count \> 1500/µL
4. Platelet count \> 100 000/µL.
11. Clinically normal resting 12-lead ECG at Screening Visit or, if abnormal, considered not clinically significant by the Principal Investigator.
12. Both male and female patients and their partners of childbearing potential must agree to use two medically accepted methods of contraception (e.g., barrier contraceptives \[male condom, female condom, or diaphragm with a spermicidal gel\], hormonal contraceptives \[implants, injectables, combination oral contraceptives, transdermal patches, or contraceptive rings\], or one of the following methods of birth control (intrauterine devices, tubal sterilization or vasectomy) or must practice complete abstinence from intercourse of reproductive potential from study entry to 6 months after the last day of treatment (excluding women who are not of childbearing potential and men who have been sterilized).
13. Females of childbearing potential (FOCBP) must have a negative serum pregnancy test at Screening Visit and negative urine pregnancy test prior to receiving the first dose of study.
14. Male participants must agree to use contraception and refrain from donating sperm for at least 120 days after the last dose of study intervention.
15. Patients must have the ability to understand and the willingness to sign a written informed consent prior to registration on study.

1. Known severe hypersensitivity towards monoclonal antibodies.
2. Clinically significant active coronary heart disease and cardiovascular insufficiency with hypotension (systolic blood pressure \<100 mmHg) per PI discretion
3. Prior history of other malignancies, except early-stage prostate cancer or basal cell carcinoma that has been surgically resected.
4. Active hepatitis B (defined as having a positive hepatitis B surface antigen \[HBsAg\] test) or hepatitis C or known viral infections.
5. Are pregnant or breastfeeding or expecting to conceive or father children within the projected duration of the study, starting with the Screening Visit through 120 days after the last dose of study intervention.
6. Has known psychiatric or substance abuse disorders that would interfere with cooperation with the requirements of the trial.
7. Stroke and/or transient ischemic attack within 6 months prior to screening.
8. Placement of a cardiac stent or bypass surgery within 6 months of screening
9. Tumor invasion of a large vascular structure (e.g., pulmonary artery, superior or inferior vena cava).
10. Is currently participating in or has participated in a study of an investigational agent or has used an investigational device within 4 weeks prior to the first dose of study treatment.
11. Active, uncontrolled bacterial, viral, or fungal infections, requiring systemic therapy.
12. Use of anabolic steroids within 6 months of screening
13. Inability to follow protocol.

Contacts and Locations

Study Contact

Joseph Meidling

CONTACT

3609808524

jmeidling@cytodyn.com

Patrick Vittner

CONTACT

3609808524

pvittner@cytodyn.com

Study Locations (Sites)

Quest Clinical Research

San Francisco, California, 94115

United States

Collaborators and Investigators

Sponsor: CytoDyn, Inc.

Study Record Dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Registration Dates

Study Start Date2025-05-30

Study Completion Date2028-08

Study Record Updates

Study Start Date2025-05-30

Study Completion Date2028-08

Terms related to this study

Keywords Provided by Researchers

Microsatellite Stable
Metastatic Colorectal Cancer

Additional Relevant MeSH Terms

Metastatic Colorectal Cancer (mCRC)