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Observational Study
. 2024 Oct 17;391(15):1390-1401.
doi: 10.1056/NEJMoa2403733.

Safety of Kidney Transplantation from Donors with HIV

Collaborators, Affiliations
Observational Study

Safety of Kidney Transplantation from Donors with HIV

Christine M Durand et al. N Engl J Med. .

Abstract

Background: Kidney transplantation from donors with human immunodeficiency virus (HIV) to recipients with HIV is an emerging practice. It has been performed since 2016 under the U.S. congressional HIV Organ Policy Equity Act and is currently approved for research only. The Department of Health and Human Services is considering expanding the procedure to clinical practice, but data are limited to small case series that did not include donors without HIV as controls.

Methods: In an observational study conducted at 26 U.S. centers, we compared transplantation of kidneys from deceased donors with HIV and donors without HIV to recipients with HIV. The primary outcome was a safety event (a composite of death from any cause, graft loss, serious adverse event, HIV breakthrough infection, persistent failure of HIV treatment, or opportunistic infection), assessed for noninferiority (margin for the upper bound of the 95% confidence interval, 3.00). Secondary outcomes included overall survival, survival without graft loss, rejection, infection, cancer, and HIV superinfection.

Results: We enrolled 408 transplantation candidates, of whom 198 received a kidney from a deceased donor; 99 received a kidney from a donor with HIV and 99 from a donor without HIV. The adjusted hazard ratio for the composite primary outcome was 1.00 (95% confidence interval [CI], 0.73 to 1.38), which showed noninferiority. The following secondary outcomes were similar whether the donor had HIV or not: overall survival at 1 year (94% vs. 95%) and 3 years (85% vs. 87%), survival without graft loss at 1 year (93% vs. 90%) and 3 years (84% vs. 81%), and rejection at 1 year (13% vs. 21%) and 3 years (21% vs. 24%). The incidence of serious adverse events, infections, surgical or vascular complications, and cancer was similar in the groups. The incidence of HIV breakthrough infection was higher among recipients of kidneys from donors with HIV (incidence rate ratio, 3.14; 95%, CI, 1.02 to 9.63), with one potential HIV superinfection among the 58 recipients in this group with sequence data and no persistent failures of HIV treatment.

Conclusions: In this observational study of kidney transplantation in persons with HIV, transplantation from donors with HIV appeared to be noninferior to that from donors without HIV. (Funded by the National Institute of Allergy and Infectious Diseases; ClinicalTrials.gov number, NCT03500315.).

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Figures

Figure 1.
Figure 1.
Panel A shows the cumulative incidence of recipients with the primary outcome composite event of all-cause-mortality, graft failure, serious adverse event (SAE), HIV-breakthrough, persistent HIV failure, or opportunistic infection. 79/99 recipients in HIV D+/R+ had the primary outcome composite event, with 71 attributed to SAEs, 6 HIV-breakthroughs, 1 opportunistic infection, and 1 death. 77/99 recipients in HIV D−/R+ had the primary outcome composite event, with 70 attributed to SAEs, 3 graft failures, 2 HIV-breakthroughs, and 2 opportunistic infections. Median outcome-free time was 0.36 years (IQR, 0.05–2.08) in HIV D+/R+ and 0.34 years (IQR, 0.05–2.02) in HIV D−/R+. Panel B shows the adjusted relative risk (hazard ratio or incidence rate ratio) for each outcome. The shaded area indicates the pre-specified noninferiority margin of 3.0. Kaplan-Meier estimates of the subcomponents are shown in the Figure S2.
Figure 1.
Figure 1.
Panel A shows the cumulative incidence of recipients with the primary outcome composite event of all-cause-mortality, graft failure, serious adverse event (SAE), HIV-breakthrough, persistent HIV failure, or opportunistic infection. 79/99 recipients in HIV D+/R+ had the primary outcome composite event, with 71 attributed to SAEs, 6 HIV-breakthroughs, 1 opportunistic infection, and 1 death. 77/99 recipients in HIV D−/R+ had the primary outcome composite event, with 70 attributed to SAEs, 3 graft failures, 2 HIV-breakthroughs, and 2 opportunistic infections. Median outcome-free time was 0.36 years (IQR, 0.05–2.08) in HIV D+/R+ and 0.34 years (IQR, 0.05–2.02) in HIV D−/R+. Panel B shows the adjusted relative risk (hazard ratio or incidence rate ratio) for each outcome. The shaded area indicates the pre-specified noninferiority margin of 3.0. Kaplan-Meier estimates of the subcomponents are shown in the Figure S2.
Figure 2.
Figure 2.
Shown are the Kaplan-Meier estimates of patient survival (Panel A), all-cause graft survival (Panel B), and rejection-free survival (Panel C). Patient survival was 94% (95% CI, 87–97) in HIV D+/R+ vs. 95% (95% CI, 88–98) HIV D−/R+ at 1 year, and 85% (95% CI, 74–92) in HIV D+/R+ vs. 87% (95% CI, 77–93) in HIV D−/R+ at 3 years. 12 deaths were observed in HIV D+/R+ and 11 in HIV D−/R+. All-cause graft survival was 93% (95% CI, 86–97) in HIV D+/R+ vs. 90% (95% CI, 82–94) HIV D−/R+ at 1 year, and 84% (95% CI, 73–91) in HIV D+/R+ vs. 80% (95% CI, 70–87) in HIV D−/R+ at 3 years. Rejection was 13% (95% CI, 8–22) in HIV D+/R+ vs. 21% (95% CI, 14–31) HIV D−/R+ at 1 year, and 21% (95% CI, 13–31) in HIV D+/R+ vs. 24% (95% CI, 16–34) in HIV D−/R+ at 3 years.
Figure 2.
Figure 2.
Shown are the Kaplan-Meier estimates of patient survival (Panel A), all-cause graft survival (Panel B), and rejection-free survival (Panel C). Patient survival was 94% (95% CI, 87–97) in HIV D+/R+ vs. 95% (95% CI, 88–98) HIV D−/R+ at 1 year, and 85% (95% CI, 74–92) in HIV D+/R+ vs. 87% (95% CI, 77–93) in HIV D−/R+ at 3 years. 12 deaths were observed in HIV D+/R+ and 11 in HIV D−/R+. All-cause graft survival was 93% (95% CI, 86–97) in HIV D+/R+ vs. 90% (95% CI, 82–94) HIV D−/R+ at 1 year, and 84% (95% CI, 73–91) in HIV D+/R+ vs. 80% (95% CI, 70–87) in HIV D−/R+ at 3 years. Rejection was 13% (95% CI, 8–22) in HIV D+/R+ vs. 21% (95% CI, 14–31) HIV D−/R+ at 1 year, and 21% (95% CI, 13–31) in HIV D+/R+ vs. 24% (95% CI, 16–34) in HIV D−/R+ at 3 years.
Figure 2.
Figure 2.
Shown are the Kaplan-Meier estimates of patient survival (Panel A), all-cause graft survival (Panel B), and rejection-free survival (Panel C). Patient survival was 94% (95% CI, 87–97) in HIV D+/R+ vs. 95% (95% CI, 88–98) HIV D−/R+ at 1 year, and 85% (95% CI, 74–92) in HIV D+/R+ vs. 87% (95% CI, 77–93) in HIV D−/R+ at 3 years. 12 deaths were observed in HIV D+/R+ and 11 in HIV D−/R+. All-cause graft survival was 93% (95% CI, 86–97) in HIV D+/R+ vs. 90% (95% CI, 82–94) HIV D−/R+ at 1 year, and 84% (95% CI, 73–91) in HIV D+/R+ vs. 80% (95% CI, 70–87) in HIV D−/R+ at 3 years. Rejection was 13% (95% CI, 8–22) in HIV D+/R+ vs. 21% (95% CI, 14–31) HIV D−/R+ at 1 year, and 21% (95% CI, 13–31) in HIV D+/R+ vs. 24% (95% CI, 16–34) in HIV D−/R+ at 3 years.

Comment in

References

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