Phase 2
N=97
Impact of CCR5 Blockade in HIV+ Kidney Transplant Recipients
HIV Infections · Kidney Diseases
Bottom Line
View on ClinicalTrials.gov: NCT02741323 ↗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
| Outcome | Result | p-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
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.