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Phase 2 N=97 Randomized Quadruple-blind Treatment

Impact of CCR5 Blockade in HIV+ Kidney Transplant Recipients

HIV Infections · Kidney Diseases

Enrolled (actual)
97
Serious AEs
73.2%
Results posted
Aug 2023
Primary outcome: Primary: Mean Glomerular Filtration Rate by Iohexol Clearance at Week 52 — 37.0; 40.1 mL/min/1.73 m²

Study Design & Population

Study type
Interventional
Phase
Phase 2
Interventions
Maraviroc (Drug); Placebo (Drug)
Age
Adult, Older Adult · 18+ yrs
Sex
All
Sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
Primary completion
May 2022

Outcome Measures

OutcomeResultp-value
PRIMARY
Mean Glomerular Filtration Rate by Iohexol Clearance at Week 52
37.0; 40.1
PRIMARY
Cumulative Incidence of Graft Loss, Toxicities ≥ Grade 3 Per the DAIDS Toxicity Table and/or Permanent Treatment Discontinuation
0.84; 0.85
SECONDARY
Mean CD45 Gene Expression Count (PTPRC)
49.4; 50.9
SECONDARY
Mean CD45 Quantitative Immunohistochemistry (IHC)
144.7; 77.5
SECONDARY
Tissue Common Rejection Module (tCRM) Score Using the 11-gene tCRM Module on FFPE Biopsy Shaves
1.83; 1.67
SECONDARY
Urine Common Rejection Module (uCRM) Score Using the 11-gene uCRM Module on Urine Cell Pellets
0.40; 0.25
SECONDARY
Urine Common Rejection Module (uCRM) Score Using the 11-gene uCRM Module on Urine Cell Pellets
0.40; 0.25
SECONDARY
Proportion of Participants With Estimated Glomerular Filtration Rate (eGFR) Less Than 60 mL/Min/1.73 m² at Week 52
0.45; 0.73
SECONDARY
Proportion of Participants With Defined CKD Stage 4 or 5 at Year 1
0.07; 0.14
SECONDARY
Mean eGFR at Week 52 Based on CKD-EPI Creatinine Equation
59.2; 49.3
SECONDARY
The Slope of eGFR Over Time in Year 1
-0.1; -0.5
SECONDARY
HIV DNA in Peripheral Blood CD4+ T Cells at Week 52
22.2; 43.9
SECONDARY
HIV RNA in Peripheral Blood CD4+ T Cells at Week 52.
402.1; 902.6
SECONDARY
Plasma HIV RNA Levels (Single Copy Assay) at Week 52
0; 0.3
SECONDARY
Cumulative Incidence/Proportion of Biopsy Proven Acute Rejection Within 1 Year Post Transplant
0.0816; 0.1250
SECONDARY
Cumulative Incidence/Proportion of Acute Cellular Rejection Grade Equal to or Greater Than 1A During the Entire Study Follow-up
0.1224; 0.1429
SECONDARY
Incidence/Proportion of Antibody Mediated Rejection
0.0000; 0.0208
SECONDARY
Proportion of Participants With de Novo Anti-donor Human Leukocyte Antigen (HLA) Antibodies
0.1600; 0.0870
SECONDARY
Incidence/Proportion of Participants With HIV Infection in the Renal Allograft
0; 0
SECONDARY
Incidence of Death at Year 1
4.3; 2.2
SECONDARY
Incidence of Graft Loss in Year 1
6.3; 6.6
SECONDARY
Incidence of All Adverse Events (AEs) Greater Than or Equal to Grade 3 at Year 1
81.6; 77.6
SECONDARY
Incidence of Serious Adverse Events (SAEs) Greater Than or Equal to Grade 3 Within Year 1
73.5; 53.2
SECONDARY
Incidence of Opportunistic Infections or Neoplasms Within Year 1
19.1; 6.7
SECONDARY
Incidence of Non-opportunistic Infections Requiring Hospitalization Within Year 1
21.3; 28.6
SECONDARY
Calcineurin Inhibitor (Tacrolimus) Trough Levels for Participants on Maraviroc Versus Placebo
9.70; 12.10
SECONDARY
Calcineurin Inhibitor (Tacrolimus) AUC for Participants on Maraviroc Versus Placebo
191.17; 193.22
SECONDARY
AUC of CCR5 Blockade (Maraviroc)
3101.82
SECONDARY
Trough Levels of CCR5 Blockade (Maraviroc)
90.95

Summary

Maraviroc (MVC) is a type of HIV medicine called a CCR5 inhibitor. This study will evaluate the safety and tolerability of MVC in HIV-infected adults receiving a kidney transplant.

Eligibility Criteria

Inclusion Criteria

  • Participant is able to understand and provide informed consent.
  • Documented HIV infection (by any licensed enzyme-linked immunosorbent assay [ELISA] and confirmation by Western Blot, positive HIV antibody (ab) indirect fluorescent antibody (IFA), or documented history of detectable HIV-1 RNA).
  • Participant is 18 years of age or older.
  • CD4+ T-cell count greater than or equal to 200/µL at any time in the 26 weeks prior to enrollment.
  • Most recent HIV-1 RNA less than 50 copies RNA/mL. Eligibility at the time of enrollment will be determined based on the most recent HIV-1 RNA, not more than 26 weeks prior to enrollment. Subjects who require a switch in combination antiretroviral therapy (cART) regimen to become study eligible must also have an eligible HIV-1 RNA result post change in cART.
  • Participant meets standard listing criteria for placement on transplant waiting list.
  • For participants with an HIV+ deceased donor:
  • No active opportunistic infections.
  • Concurrence by the study team that based on medical history and ART, viral suppression can be achieved in the recipient post-transplant.
  • Must be enrolled in an Institutional Review Board (IRB) approved research protocol that fulfills the requirements of the DHHA Hope Act Policy (see the protocol for more information).
  • HIV+ deceased donor must have no evidence of invasive opportunistic complications of HIV infection, and must have a pre-implant biopsy.
  • Antiretroviral (ARV) Use: Participant is on a stable cART regimen for at least 3 months prior to enrollment (unless changes are made due to toxicity, drug interactions, convenience or to an eligible non-protease inhibitor-based regimen). Switch should not be due to virologic failure. A regimen consisting of 2 NTRTIs and an integrase inhibitor is preferred due to minimal drug interaction but any non-protease inhibitor regimen may be used.
  • If on a protease inhibitor based regimen, participant must be switched to a non-protease inhibitor-based regimen based on lack of any prior drug resistance or antiretroviral-treatment failure, and be willing to remain on indefinitely unless a change is medically necessary. Participants who need to be switched must have been on a stable cART regimen for at least 3 months prior, and must have an eligible HIV-1 RNA result post change in cART.
  • If already on a stable non-protease inhibitor-based regimen, participant is willing to remain on this regimen indefinitely unless a change in regimen is medically indicated.
  • If untreated, must initiate and be willing to remain on indefinitely a non-protease inhibitor-based antiretroviral regimen unless a change is medically necessary.
  • No known allergy or intolerance to components of maraviroc (MVC) or its formulation.
  • No known contraindication to MVC.
  • Female participants of child-bearing potential must have a negative serum beta-human chorionic gonadotropin (HCG) pregnancy test within 30 days of randomization.

Exclusion Criteria

  • Participant is currently on MVC.
  • Participant needs multi-organ transplant.
  • Participant has a live donor who is HIV+.
  • Participant is unable to switch to a non-protease inhibitor-based cART regimen.
  • Participant has received immunosuppressant medication in the 6 months prior to enrollment. Note: Low dose maintenance steroids (less than or equal to 10 mg per day of prednisone, or equivalent strength steroid) will not be considered immunosuppression.
  • Opportunistic Complication History: Any history of progressive multifocal leukoencephalopathy (PML), chronic intestinal cryptosporidiosis of greater than 1 month duration, or primary central nervous system (CNS) lymphoma. Note: History of pulmonary coccidioidomycosis will be treated per local site policy regarding this infection in HIV negative transplant candidates, generally requiring a 5-year disease-free interval.
  • Participant has a history of any neoplasm except for the following: resolved kaposi's sarcoma, in situ anogenit
View full record on ClinicalTrials.gov →

Data sourced from ClinicalTrials.gov (NCT02741323). Outcome figures and adverse-event rates are extracted automatically from the registry's posted results and are provided for clinician reference, not as a substitute for the primary publication.

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