Safety, Tolerability, and Efficacy of IL-15 Superagonist (N-803) With and Without Combination Broadly Neutralizing Antibodies to Induce HIV-1 Control During Analytic Treatment Interruption

a study on HIV/AIDS

Summary

Eligibility
for people ages 18-65 (full criteria)
Location
at UCLA UCSD UCSF
Dates
study started
completion around

Description

Summary

The purpose of this study is to evaluate the safety, tolerability, and efficacy of N-803, an IL-15 superagonist, with or without combination broadly neutralizing antibodies (bNAbs), to induce HIV-1 control during analytic treatment interruption (ATI).

Official Title

A Phase I Clinical Trial of the Safety, Tolerability, and Efficacy of IL-15 Superagonist (N-803) With and Without Combination Broadly Neutralizing Antibodies to Induce HIV-1 Control During Analytic Treatment Interruption

Details

This study will evaluate the safety, tolerability, and efficacy of N-803, an IL-15 superagonist, with or without combination broadly neutralizing antibodies (bNAbs), to induce HIV-1 control during analytic treatment interruption (ATI).

Participants will be screened for eligibility and undergo leukapheresis, and a subset will also undergo optional rectal biopsy and/or lymph node fine needle aspirations (FNAs) (Step 1).

After pre-entry and determination of eligibility in Step 1, participants will be randomized before Step 2 entry to either the N-803 only arm (Arm A) or the N-803 with combination bNAbs arm (Arm B):

  • Arm A will receive a dose of N-803, 6 mcg/kg, subcutaneously 1 week after Step 2 entry and then every 3 weeks for a total of eight doses (during the first 22 weeks).
  • Arm B will receive the following (during the first 22 weeks):
    • Combination bNAb at Step 2 entry with VRC07-523LS dosed at 20 mg/kg and 10-1074 dosed at 30 mg/kg, intravenously;
    • A dose of N-803, 6 mcg/kg, subcutaneously 1 week after Step 2 entry and then every 3 weeks for a total of eight doses;
    • A second dose of 10-1074 at week 9 of Step 2 dosed at 30 mg/kg, intravenously

After completing randomized treatment (Step 2), participants will interrupt antiretroviral therapy (ART) (Step 3) and will be followed closely to monitor for indications for reinitiation of ART (Step 4).

After Step 2 entry, most participants will be followed for approximately 100 weeks across the remaining three study steps (i.e., Steps 2, 3, and 4).

Step 1 will last up to 90 days, Step 2 will last approximately 52 weeks (study intervention), Step 3 will last up to 24 weeks (ATI), and Step 4 will last 24 weeks (ART restart).

Keywords

HIV Infection, HIV Infections, N-803 (IL-15 Superagonist), VRC07-523LS

Eligibility

You can join if…

Open to people ages 18-65

  • HIV-1 infection
  • On ART for at least 96 weeks prior to randomization
  • On ART regimen containing an integrase inhibitor and two nucleoside reverse transcriptase inhibitors (NRTIs) or dolutegravir/lamivudine for at least 6 weeks prior to randomization.
  • CD4 cell count >450 cells/mm3 within 90 days prior to randomization
  • CD4 cell count nadir ≥200 cells/mm3.
  • Plasma HIV-1 RNA levels of <50 copies/mL for at least 96 weeks prior to randomization
  • Select laboratory results within 90 days of randomization
  • IC90 to 10-1074 of ≤1.5 mcg/mL, 10-1074 maximum percent inhibition (MPI) ≥98%, and IC80 to VRC07-523LS of ≤1 mcg/mL on the Monogram PhenoSense assay.
  • QTcF interval ≤440 msec within 90 days prior to randomization.
  • For cisgender women and transgender men of reproductive potential, negative urine or serum pregnancy test within 30 days prior to randomization
  • Cisgender women and transgender men of reproductive potential must agree to use two methods of contraception, if participating in sexual activity that could lead to pregnancy.
  • Cisgender men and transgender women participants engaging in sexual activity that could lead to pregnancy and who are of reproductive potential must agree to use a barrier method of contraception
  • Willingness to abstain from sexual intercourse or use a barrier method of contraception consistently
  • Willingness to participate in an ATI.
  • Weight >50 kg and <115 kg.
  • Completion of pre-entry leukapheresis

You CAN'T join if...

  • History of AIDS-defining illness, with the exception of recurrent pneumonia.
  • History of or current clinical cardiovascular disease
  • Current clinically significant acute or chronic medical condition
  • History of HIV-associated neurocognitive disease
  • History of an HIV-associated malignancy
  • ART initiated during acute HIV infection
  • Current receipt of ART other than NRTI and integrase inhibitor.
  • Resistance to one or more drugs in two or more ARV drug classes.
  • Receipt of any therapeutic HIV vaccine or monoclonal antibody therapy (anti-HIV or otherwise) at any time in the past.
  • History of prior immunoglobulin (IgG) therapy.
  • History of use of any immunomodulatory medications within 6 months prior to randomization
  • Participation in another clinical study of an investigational product currently or within past 12 weeks
  • Breastfeeding or pregnancy

Locations

  • UCLA CARE Center CRS not yet accepting patients
    Los Angeles California 90035 United States
  • UCSD Antiviral Research Center CRS (Site ID: 701) accepting new patients
    San Diego California 92103 United States
  • University of California, San Fransisco HIV/AIDS CRS accepting new patients
    San Francisco California 94110 United States

Details

Status
accepting new patients
Start Date
Completion Date
(estimated)
Sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
ID
NCT04340596
Phase
Phase 1 HIV/AIDS Research Study
Study Type
Interventional
Participants
Expecting 46 study participants
Last Updated