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Concurrent pembrolizumab with AVD for untreated classical Hodgkin lymphoma.
Concurrent pembrolizumab with AVD for untreated classical Hodgkin lymphoma. Blood Lynch, R. C., Ujjani, C. S., Poh, C., Warren, E. H., Smith, S. D., Shadman, M., Till, B. G., Raghunathan, V., Alig, S., Alizadeh, A. A., Gulhane, A., Chen, D., Tseng, Y., Coye, H., Shelby, M., Ottemiller, S., Keo, S., Verni, K., Du, H., Vandermeer, J., Gaston, A., Rasmussen, H., Martin, P., Marzbani, E., Voutsinas, J. M., Gopal, A. K. 2023Abstract
Concurrent administration pembrolizumab with chemotherapy in untreated classical Hodgkin lymphoma (CHL) has not previously been studied. To investigate this combination, we conducted a single arm study of concurrent pembrolizumab with AVD (APVD) for untreated CHL. We enrolled 30 patients (6 early favorable, 6 early unfavorable, and 18 advanced stage, median age 33 years (range 18-69 years)) and met the primary safety endpoint with no observed significant treatment delays in the first two cycles. Twelve patients experienced grade 3-4 non-hematologic adverse events (AEs) most commonly febrile neutropenia (5, 17%) and infection/sepsis (3, 10%). Grade 3-4 immune-related AEs were seen in 3 patients, including ALT elevation (3, 10%) and AST elevation (1, 3%). One patient experienced an episode of grade 2 colitis and arthritis. Six (20%) patients missed at least one dose of pembrolizumab due to adverse events, primarily grade 2 or higher transaminitis (5, 17%). Among 29 response-evaluable patients, the best overall response rate was 100% and CR rate of 90%. With median follow up of 2.1 years, 2-year progression-free survival (PFS) and overall survival were 97% and 100%, respectively. To date, no patient who withheld or discontinued pembrolizumab due to toxicity has progressed. Clearance of ctDNA was associated with superior PFS when measured after cycle 2 (p=0.025) and at end of treatment (EOT, p=0.0016). None of the 4 patients with persistent disease by FDG-PET at EOT yet negative ctDNA have relapsed to date. Concurrent APVD shows promising safety and efficacy, but may yield spurious PET findings in some patients. Trial Registration Number: NCT03331341.
View details for DOI 10.1182/blood.2022019254
View details for PubMedID 36913694