Ajay K. Nooka, MBBS, of Winship Cancer Center of Emory University, discusses phase II findings showing that, in patients with high-risk myeloma, maintenance therapy with carfilzomib, pomalidomide, and dexamethasone deepened responses. Measurable residual disease negativity was attained in 80% of patients.
Catherine C. Coombs, MD, of the University of California, Irvine, discusses prolonged pirtobrutinib therapy, which continues to demonstrate a safety profile amenable to long-term administration at the recommended dose without evidence of new or worsening toxicity signals. The safety and tolerability observed in patients on therapy for 12 months or more were similar to previously published safety analyses of all patients enrolled, regardless of follow-up (Abstract 7513).
Lisa A. Carey, MD, of the University of North Carolina at Chapel Hill, and Javier Cortes, MD, PhD, of the International Breast Cancer Center and Universidad Europea de Madrid, discuss phase II findings showing that one in three patients with HER2-positive early breast cancer may safely omit chemotherapy. Among the chemotherapy-free patients treated with trastuzumab and pertuzumab, the 3-year invasive disease–free survival was 98.8%, with no distant metastases (Abstract LBA506).
Tycel J. Phillips, MD, of City of Hope National Medical Center, and Emanuele Zucca, MD, of the Oncology Institute of Southern Switzerland and the International Extranodal Lymphoma Study Group, discuss findings from the largest prospective study of patients with primary mediastinal B-cell lymphoma. The trial data support omitting radiotherapy in patients who achieve complete metabolic response after immunochemotherapy (Abstract LBA7505).
Alicia K. Morgans, MD, MPH, and Praful Ravi, MRCP, MBBChir, both of Dana-Farber Cancer Institute, discuss an individual patient-data analysis of randomized trials from the ICECAP collaborative. A PSA nadir of ≥ 0.1 ng/mL within 6 months after radiotherapy completion was prognostic for prostate cancer–specific, metastasis-free, and overall survival in patients receiving radiotherapy plus androgen-deprivation therapy for localized prostate cancer. These findings may help identify patients for therapy de-escalation trials (Abstract 5002).
Georgina V. Long, MD, PhD, of Melanoma Institute Australia and The University of Sydney, discusses new data showing that patients with resected stage IIB/C melanoma who were treated with adjuvant nivolumab had prolonged recurrence-free survival compared with placebo across all biomarker subgroups. The baseline biomarkers most predictive of prolonged recurrence-free survival with nivolumab were high interferon gamma score, high tumor mutational burden, CD8 T-cell infiltration, and low C-reactive protein (Abstract 9504).
