New England Journal of Medicine最新文献

Background: Patients with muscle-invasive bladder cancer who are ineligible for cisplatin-based chemotherapy proceed directly to radical cystectomy with pelvic lymph-node dissection. Perioperative therapy may improve outcomes in this population.

Methods: In this phase 3, open-label trial, participants with muscle-invasive bladder cancer who were ineligible for or declined cisplatin-based chemotherapy were randomly assigned to perioperative (neoadjuvant and adjuvant) enfortumab vedotin, an antibody-drug conjugate directed at nectin-4, plus pembrolizumab and surgery (9 total cycles of enfortumab vedotin [1.25 mg per kilogram of body weight on days 1 and 8] plus 17 total cycles of pembrolizumab [200 mg on day 1 every 3 weeks], with surgery after 3 cycles) or surgery alone (control). The primary end point was event-free survival. Key secondary end points were overall survival and pathological complete response (absence of viable tumor after surgical resection). Other secondary end points included safety.

Results: A total of 344 participants underwent randomization (170 in the enfortumab vedotin-pembrolizumab group and 174 in the control group). At data cutoff, median follow-up was 25.6 months (range, 11.8 to 53.7). Surgery was performed in 87.6% of participants in the enfortumab vedotin-pembrolizumab group and in 89.7% in the control group. At 2 years, estimated event-free survival was 74.7% in the enfortumab vedotin-pembrolizumab group and 39.4% in the control group (hazard ratio for an event or death, 0.40; 95% confidence interval [CI], 0.28 to 0.57; two-sided P<0.001); estimated overall survival was 79.7% and 63.1% (hazard ratio for death, 0.50; 95% CI, 0.33 to 0.74; two-sided P<0.001). A pathological complete response had occurred in 57.1% and 8.6% of the participants (estimated difference, 48.3 percentage points; 95% CI, 39.5 to 56.5; two-sided P<0.001). Adverse events occurred in all participants in the enfortumab vedotin-pembrolizumab group (grade ≥3, 71.3%; grade ≥3 drug-related, 45.5%) and in 64.8% in the control group (grade ≥3, 45.9%).

Conclusions: Perioperative enfortumab vedotin plus pembrolizumab and surgery led to significantly better event-free and overall survival outcomes and a greater percentage of participants with pathological complete response than surgery alone in a predominantly cisplatin-ineligible population with muscle-invasive bladder cancer. Safety was also assessed. (Funded by Merck Sharp and Dohme, a subsidiary of Merck [Rahway, NJ]; KEYNOTE-905 ClinicalTrials.gov number, NCT03924895.).

Background: Randomized trials of long-acting injectable antiretroviral therapy (ART) in persons with human immunodeficiency virus (HIV) who face challenges with adherence to oral medication are lacking.

Methods: We conducted an open-label, randomized trial involving persons with HIV who had inadequate adherence to ART (a persistent HIV-1 RNA level of >200 copies per milliliter or loss to follow-up). Participants received up to 24 weeks of adherence support, conditional economic incentives, and standard care with oral ART (step 1). Participants who had an HIV-1 RNA level of 200 copies per milliliter or lower in step 1 were randomly assigned in a 1:1 ratio to either continue standard care or switch to monthly injections of long-acting cabotegravir plus rilpivirine with or without oral lead-in therapy (step 2). The primary outcome was regimen failure, defined as confirmed virologic failure (two consecutive HIV-1 RNA measurements of >200 copies per milliliter) or treatment discontinuation during step 2.

Results: In step 1 of the trial, we enrolled 453 participants; the median age was 40 years, 63% were Black, and 29% had been assigned female sex at birth. In step 2, a total of 306 participants underwent randomization; 152 were assigned to receive cabotegravir-rilpivirine and 154 to receive standard care. Step 2 randomization was stopped early on the basis of the superiority of cabotegravir-rilpivirine to standard care in secondary outcomes at a prespecified analysis performed after a median follow-up of 48 weeks. The cumulative incidence of regimen failure by week 48 was 22.8% in the cabotegravir-rilpivirine group and 41.2% in the standard-care group (difference, -18.4 percentage points; 98.4% confidence interval [CI], -32.4 to -4.3; P = 0.002). The cumulative incidence of an adverse event was 43.5% in the cabotegravir-rilpivirine group and 42.4% in the standard-care group (difference, 1.1 percentage points; 95% CI, -12.7 to 15.0). Resistance-associated mutations developed in 2 participants with confirmed virologic failure in each group.

Conclusions: Monthly injections of long-acting cabotegravir-rilpivirine were superior to standard oral ART in reducing the risk of regimen failure among persons with HIV who had adherence challenges. (Funded by the National Institute of Allergy and Infectious Diseases; LATITUDE ClinicalTrials.gov number, NCT03635788.).