Weekly shot could replace daily HIV pills for some patients
NCT ID NCT02859961
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study tested whether a weekly injection of PRO 140 (Leronlimab) could keep HIV under control in people whose virus was already suppressed by daily pills. Over 500 participants switched from their regular medication to the shot alone for 48 weeks. The goal was to see how many could maintain viral suppression without their virus rebounding.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- PRO 140 (Leronlimab) injection
- What this could lead to
- If successful, this could offer a simpler, long-acting maintenance option for people with HIV, reducing the need for daily pills.
- What could go wrong
- This is an early-to-mid stage trial with a moderate number of participants. The treatment may not work for everyone, and some patients experienced virologic failure. Long-term safety and effectiveness are still being studied.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Phase
-
Phase 2/3
Runs two stages together: whether the treatment works, then large-scale confirmation.
- Participants
-
562 people
The number who actually took part.
- Started
-
Dec 2016
- Finished
-
Dec 2020
- Lead sponsor
-
A company
The lead sponsor is a pharmaceutical, biotech, or medical-device company.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
-
18 years and older
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: 1. Males and females, age ≥18 years 2. Receiving combination antiretroviral therapy for last 24 weeks 3. No change in ART within last 4 weeks prior to Screening Visit 4. Subject has two or more potential alternative approved ART drug options to consider. 5. Exclusive CCR5-tropic virus at Screening Visit 6. Plasma HIV-1 RNA \< 50 copies/mL at Screening Visit 7. CD4 cell count of \> 200 cells/mm3 since initiation of anti-retroviral therapy 8. CD4 cell count of \> 350 cells/mm3 in preceding 24 weeks and at Screening Visit 9. Laboratory values at Screening of: 1. Absolute neutrophil count (ANC) ≥ 750/mm3 2. Hemoglobin (Hb) ≥ 10.5 gm/dL (male) or ≥ 9.5 gm/dL (female) 3. Platelets ≥ 75,000 /mm3 4. Serum alanine transaminase (SGPT/ALT) \< 5 x upper limit of normal (ULN) 5. Serum aspartate transaminase (SGOT/AST) \< 5 x ULN 6. Bilirubin (total) \< 2.5 x ULN unless Gilbert's disease is present or subject is receiving atazanavir in the absence of other evidence of significant liver disease 7. Creatinine ≤ 1.5 x ULN 10. Clinically normal resting 12-lead ECG at Screening Visit or, if abnormal, considered not clinically significant by the Principal Investigator. 11. Both male and female patients and their partners of childbearing potential must agree to use 2 medically accepted methods of contraception during the course of the study. 12. 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. Exclusion Criteria: 1. CXCR4-tropic virus or dual/mixed tropic (R5X4) virus determined by the Trofile™ DNA Assay 2. Hepatitis B infection as manifest by the presence of Hepatitis B surface antigen (HBsAg) 3. Any active infection or malignancy requiring acute therapy (with the exception of local cutaneous Kaposi's sarcoma) 4. Laboratory test values ≥ grade 4 DAIDS laboratory abnormality. 5. Females who are pregnant, lactating, or breastfeeding, or who plan to become pregnant during the study 6. Unexplained fever or clinically significant illness within 1 week prior to the first study dose 7. Any vaccination within 2 weeks prior to the first study dose or during the study. 8. Subjects who have failed on a maraviroc containing regimen. 9. Subjects weighing \< 35kg 10. History of anaphylaxis to any oral or parenteral drugs 11. History of Bleeding Disorder or patients on anti-coagulant therapy 12. Participation in an experimental drug trial(s) within 30 days of the Screening Visit 13. Any known allergy or antibodies to the study drug or excipients 14. Treatment with any of the following: 1. Radiation or cytotoxic chemotherapy with 30 days prior to the screening visit 2. Immunosuppressants within 60 days prior to the screening visit 3. Immunomodulating agents (e.g., interleukins, interferons), hydroxyurea, or foscarnet within 60 days prior to the screening visit 4. Oral or parenteral corticosteroids within 30 days prior to the Screening Visit. Subjects on chronic steroid therapy \> 5 mg/day will be excluded with the following exception: * Subjects on inhaled, nasal, or topical steroids will not be excluded 15. Any other clinical condition that, in the Investigator's judgment, would potentially compromise study compliance or the ability to evaluate safety/efficacy
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Locations
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CD03 Investigational site
La Mesa, California, 91942, United States
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CD03 Investigational site
Palm Springs, California, 92262, United States
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CD03 Investigational site
San Francisco, California, 94115, United States
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CD03 Investigational site
New Haven, Connecticut, 06510, United States
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CD03 Investigational site
Norwalk, Connecticut, 06850, United States
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CD03 Investigational site
Ft. Pierce, Florida, 34982, United States
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CD03 Investigational site
Orlando, Florida, 32803, United States
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CD03 Investigational site
West Palm Beach, Florida, 33401, United States
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CD03 Investigational site
Wichita, Kansas, 67214, United States
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CD03 Investigational site
Las Vegas, Nevada, 89109, United States
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CD03 Investigational site
New York, New York, 10011, United States
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CD03 Investigational site
Syracuse, New York, 13210, United States
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