An Extension Protocol for Virologically Suppressed Subjects Who Successfully Completed PRO140_CD03 Study

Stopped early · Phase 2/Phase 3

Conditions studied: HIV-1-infection

In brief

This study is a Phase 2b/3 multi-center extension study designed to evaluate the long term antiviral activity, safety, and tolerability of the strategy of continuing PRO 140 350mg, 525mg, or 700mg SC (subcutaneous) monotherapy to maintain viral suppression after initial 48 weeks in virologically suppressed subjects. Consenting subjects will continue weekly PRO 140 350mg, 525mg, or 700mg monotherapy during the Treatment Extension Phase with the one-week overlap of existing retroviral regimen and PRO 140 350mg, 525mg, or 700 mg at the end of the treatment in subjects who do not experience virologic failure.

Key facts

Study ID

NCT05271370

Run by

CytoDyn, Inc.

People needed

56

Starts

2017-08-29

Expected to finish

2022-07-10

Last updated by the study team

2025-10-30

Who can join

Age: 18 and older. Sex: any. Healthy volunteers: not accepted.

You may qualify if…

• Subjects who have completed 48 weeks of treatment in PRO140_CD03 study.
• Last known Plasma HIV-1 RNA < 50 copies/mL within PRO140_CD03 study.
• Both male and female patients and their partners of childbearing potential must agree to use 2 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], and intrauterine devices) during the course of the study (excluding women who are not of childbearing potential and men who have been sterilized). Females of childbearing potential must have a negative serum pregnancy test at Screening visit and negative urine pregnancy test prior to receiving the first dose of study drug.
• Willing and able to participate in all aspects of the study, including use of SC medication, completion of subjective evaluations, attendance at scheduled clinic visits, and compliance with all protocol requirements as evidenced by providing written informed consent.

You may not qualify if…

• Not currently enrolled in PRO140_CD03 study.
• Any active infection or malignancy requiring acute therapy (with the exception of local cutaneous Kaposi's sarcoma).
• Females who are pregnant, lactating, or breastfeeding, or who plan to become pregnant during the study.
• Subjects weighing < 35kg.
• History of anaphylaxis to any oral or parenteral drugs.
• History of Bleeding Disorder or patients on anti-coagulant therapy (except aspirin).
• Note: Subjects with well-controlled bleeding disorder while on stable anti-coagulant therapy dose with documented stable INRs can be enrolled as per discretion of the Investigator.
• Any other clinical condition that, in the Investigator's judgment, would potentially compromise study compliance or the ability to evaluate safety/efficacy.

Where it is running

• Quest Clinical Research — San Francisco, California, United States

Full record on ClinicalTrials.gov

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