New antibody shot could mean fewer HIV treatments
NCT ID NCT03254277
First seen Jun 24, 2026 · Last updated Jun 27, 2026 · Updated 1 time
Summary
This early study tested a lab-made antibody called 3BNC117-LS in 43 people, some with HIV and some without. The goal was to see if it is safe and how long it stays in the body. If it works, this antibody might one day help control HIV with less frequent dosing.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- 3BNC117-LS (a lab-made antibody)
- What this could lead to
- If successful, this could lead to a longer-lasting antibody treatment that helps control HIV without daily pills.
- What could go wrong
- This is a very early Phase 1 safety study with only 43 participants. The antibody may not work as hoped, and side effects are possible. Much more research is needed.
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 1
The first testing in people. Mainly checks safety and dose, usually in a small group.
- Participants
-
43 people
The number who actually took part.
- Started
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Sep 2017
- Finished
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Dec 2020
- Lead sponsor
-
Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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18 to 65 years
- Sex
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Anyone
- Healthy volunteers
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Accepted
You do not need to have the condition being studied to take part.
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: Groups 1A-1F (HIV-uninfected): 1. Males and females, age 18 to 65 2. Amenable to HIV risk reduction counseling and agrees to maintain behavior consistent with low risk of HIV exposure. 3. If sexually active male or female, and participating in sexual activity that could lead to pregnancy, agrees to use two effective methods of contraception (i.e. condom with spermicide, diaphragm with spermicide, hormone-eluting IUD, hormone-based contraceptive with condom) from 10 days prior to and until seven months after 3BNC117-LS infusion, and agrees to safer sex counseling at each visit. * Female study participants of reproductive potential are defined as pre-menopausal women who have not had a sterilization procedure (e.g. hysterectomy, bilateral oophorectomy, tubal ligation or salpingectomy). Women are considered menopausal if they have not had a menses for at least 12 months and have a FSH of greater than 40 IU/L or if FSH testing is not available, they have had amenorrhea for 24 consecutive months. Groups 2B-2D (HIV-infected): 1. Males and females, age 18 to 65. 2. HIV-1 infection confirmed by two laboratory assays. 3. HIV-infected individuals off ART for at least 8 weeks with HIV-1 plasma RNA levels \< 100,000 copies/ml by standard assays (ART-naïve or off ART due to intolerance or by choice), or on ART with HIV-1 plasma RNA levels \< 20 copies/ml. HIV-1 RNA levels should be measured on 2 occasions, at least 1 week apart. At least one measurement must be performed within 49 days prior to enrollment (day 0). Group 2D will only enroll HIV-infected individuals on ART. 4. Current CD4+ T cell count \> 300 cells/μl. 5. If sexually active male or female, and participating in sexual activity that could lead to pregnancy or transmission of HIV, agrees to use two effective methods of contraception (i.e. condom with spermicide, diaphragm with spermicide, hormone-eluting IUD, hormone-based contraceptive with condom) from 10 days prior to and until seven months after 3BNC117-LS infusion, and agrees to safer sex counseling at each visit. Exclusion Criteria: Groups 1A-1F (HIV-uninfected): 1. Confirmed HIV-1 or HIV-2 infection. 2. History of immunodeficiency or autoimmune disease; use of systemic corticosteroids, immunosuppressive anti-cancer, or other medications considered significant by the trial physician within the last 6 months. 3. Any clinically significant acute or chronic medical condition (such as autoimmune diseases) that in the opinion of the investigator would preclude participation. 4. Within the 12 months prior to enrollment, the participant has a history of sexually transmitted infection. 5. Hepatitis B or C infection as indicated by the presence of Hepatitis B surface antigen (HBsAg) or hepatitis C virus RNA (HCV-RNA) in blood. 6. Laboratory abnormalities in the parameters listed: * Absolute neutrophil count ≤ 1,500 cells/µL; * Hemoglobin ≤ 11 gm/dL if female; ≤ 12.5 gm/dL if male; * Platelet count ≤ 125,000 cells/µL; * Alanine transaminase (ALT) ≥ 1.25 x ULN; * Aspartate transaminase (AST) ≥ 1.25 x ULN; * Alkaline phosphatase ≥ 1.5 x ULN; * Total bilirubin \> 1 x ULN; * Estimated glomerular filtration rate (eGFR) \< 60 mL/min/1.73m2. 7. Pregnancy or lactation. 8. Any vaccination within 14 days prior to 3BNC117-LS infusion. 9. Receipt of any experimental HIV vaccine or monoclonal antibody therapy of any kind in the past. 10. History of severe reaction to a vaccine or drug infusion or history of severe allergic reactions. 11. Individuals with known hypersensitivity to any constituent of the investigational product. 12. Receipt of another investigational product currently or within the past 12 weeks, or expected concurrent participation in another study in which investigational products will be administered. Groups 2B-2D (HIV-infected): 1. Have a history of AIDS-defining illness within 3 years prior to enrollment. 2. History of systemic corticosteroids, immunosuppressive anti-cancer, or other medications considered significant by the trial physician within the last 6 months. 3. Any clinically significant acute or chronic medical condition (such as autoimmune diseases), other than HIV infection, that in the opinion of the investigator would preclude participation. 4. Hepatitis B or C infection as indicated by the presence of Hepatitis B surface antigen (HBsAg) or hepatitis C virus RNA (HCV-RNA) in blood. 5. Laboratory abnormalities in the parameters listed below: * Absolute neutrophil count ≤ 1,000 cells/μl; * Hemoglobin ≤ 10 gm/dL; * Platelet count ≤ 100,000 cells/μl; * ALT ≥ 1.5 x ULN; * AST ≥ 1.5 x ULN; * Alkaline phosphatase ≥ 1.5 x ULN; * Total bilirubin \> 1 x ULN; * eGFR \< 60 mL/min/1.73m2. 6. Pregnancy or lactation. 7. Any vaccination within 14 days prior to 3BNC117-LS infusion. 8. Receipt of any experimental HIV vaccine or monoclonal antibody therapy of any kind in the past. 9. History of severe reaction to a vaccine or drug infusion or history of severe allergic reactions. 10. Individuals with known hypersensitivity to any constituent of the investigational product. 11. Receipt of another investigational product currently or within the past 12 weeks, or expected concurrent participation in another study in which investigational products will be administered.
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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
-
The Rockefeller University
New York, New York, 10065, United States
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