New Data Evaluating KEYTRUDA® (pembrolizumab) in Combination with Chemotherapy for First-Line Treatment of Non-Small Cell Lung Cancer Demonstrate Response Rates Ranging from 48 to 71 Percent


“Merck (NYSE: MRK), known as MSD outside the United States and Canada, today announced findings from an initial proof-of-concept study of KEYTRUDA®(pembrolizumab), the company’s anti-PD-1 therapy, combined with standard treatments, one with bevacizumab and others without, in non-small cell lung cancer (NSCLC) including chemotherapy in previously untreated patients with NSCLC; the study showed overall response rates (ORR) ranging from 48 to 71 percent, depending on the therapy used. These data, from the phase 1/2 KEYNOTE-021 trial, will be presented today at the 52nd Annual Meeting of the American Society of Clinical Oncology (ASCO) by Dr. Shirish Gadgeel of the Barbara Ann Karmanos Cancer Institute (Abstract #9016) from 8:00 – 11:30 a.m. CDT (Location: Hall A) and in a poster discussion from 3:00 – 4:15 p.m. CDT (Location: E354b).

“ ‘Combining KEYTRUDA and chemotherapy in the first-line lung cancer treatment setting is an important part of our effort to develop more treatment options for patients with non-small cell lung cancer,’ said Dr. Roger Dansey, senior vice president and therapeutic area head, oncology late-stage development, Merck Research Laboratories. ‘This study has helped us to identify chemotherapy options for combination with KEYTRUDA regardless of PD-L1 expression to take forward in phase 3 trials.’ ”

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