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RECRUITING
NCT06853223
PHASE2

This Study is Assessing the Safety and Efficacy of Immune Inhibition as a Treatment to Prevent Primary Graft Dysfunction

Sponsor: University of California, San Francisco

View on ClinicalTrials.gov

Summary

Lung transplant recipient survival lags other solid organ recipients, with the main early cause of death being primary graft dysfunction (PGD). PGD occurs in up to 1/3 of all recipients, is driven by the body's innate immune response, and has no known medical therapies for treatment or prevention. Investigators have recently shown that Natural Killer (NK) cells, a key innate immune cell, are critical in causing PGD. Importantly, the investigators found that Maraviroc, an FDA-approved drug that works to inhibit these immune cells, prevented lung injury in mouse models of PGD. The goal of this clinical trial is to learn if Maraviroc works to treat PGD in Lung Transplant patients who are above the age of 18 and have a PGD risk score greater than 50%. The objectives the study hopes to address are: To address the safety and tolerability of Maraviroc. To test a strategy for PGD enrichment in a lung transplant population. To measure the efficacy and biological efficacy of using Maraviroc. To study the biochemical, physiologic, and molecular effects of the drug on the body. This will be a double blind study where patients will either get the Maraviroc drug or a placebo. Researchers will then compare the two groups to address the above objectives. Participants will: Take drug Maraviroc or a placebo every 12 hours for 3 days post surgery. Follow up will occur during the entire length of stay at UCSF, about 16 days, with a single 12 month follow up once released.

Official title: A Randomized Trial of CCR5 Inhibition as a Complement to Lung Transplant Induction Immunosuppression

Key Details

Gender

All

Age Range

18 Years - Any

Study Type

INTERVENTIONAL

Enrollment

120

Start Date

2025-12-07

Completion Date

2028-08-14

Last Updated

2026-01-20

Healthy Volunteers

Yes

Interventions

DRUG

Maraviroc

Product will be administered for 300 mg immediately preceding the lung transplant surgery and then will be administered every 12 hours. There will be 7 total doses. The first 3 will be 300 mg doses and the remaining 4 will be 150 mg doses. Maraviroc will be given oral (PO) or by feeding tube (PFT) in crushed format depending on the route availability.

DRUG

Placebo

Placebo in 300 and 150 mg formulations Product will be administered every 12 hours for 3 days. The placebo will be matched in appearance and taste to the Maraviroc and is available in PO and liquid (PFT) formulations.

Locations (1)

University of California, San Francisco

San Francisco, California, United States