Key Points
Brentuximab vedotin and nivolumab with doxorubicin and dacarbazine resulted in an ORR of 96%, CR rate of 92%, and 2 year PFS of 97%
Grade ≥3 TEAEs occurred in 44%; grade ≥3 treatment-related peripheral sensory neuropathy occurred in 3%; no events of febrile neutropenia
Most patients with early-stage classical Hodgkin lymphoma (cHL) are treated with doxorubicin, bleomycin, vinblastine, and dacarbazine with or without radiation therapy, although studies are now evaluating the incorporation of novel agents paired with abbreviated chemotherapy. We present the efficacy and safety of brentuximab vedotin (BV) and nivolumab in combination with doxorubicin and dacarbazine (AN+AD) in patients with early-stage cHL. In this phase 2 study, patients with non-bulky (<10 cm) Ann Arbor stage I or II cHL received 4 cycles of AN+AD. The primary endpoint was complete response (CR) rate at end of treatment (EOT) by investigator. At the time of this analysis, 154 patients received ≥1 dose of AN+AD. The objective response rate at EOT was 96% (95% CI, 91.7-98.6), and the CR rate was 92% (95% CI, 86.0-95.4). In the favorable (n=56) and unfavorable (n=97) subgroups, CR rates were 95% (95% CI, 85.1-98.9) and 91% (95% CI, 83.1-95.7), respectively. The proportion of patients with duration of CR of at least 2 years was 96% (95% CI, 90.9-98.4). At a median follow-up of 27.9 months, the estimated 2-year PFS rate was 97% (95% CI, 92.0-98.8). Any-grade and grade ≥3 treatment-emergent adverse events occurred in 99% and 44% of patients, respectively; no events of febrile neutropenia were reported. Any-grade treatment-emergent immune-mediated adverse events occurred in 22% of patients. One disease-related death was reported after the safety reporting period. Results from this study support the use of BV and nivolumab in combination with limited chemotherapy in patients with non-bulky, early-stage cHL. ClinicalTrials.gov: NCT03646123