https://www.businesswire.com/news/home/20180809005749/en/ > LOS ANGELES--(BUSINESS WIRE)--Aug 9, 2018--Puma Biotechnology, Inc. (NASDAQ: PBYI), a biopharmaceutical company, announced financial results for the second quarter ended June 30, 2018. Unless otherwise stated, all comparisons are for the second quarter 2018 compared to the second quarter 2017. > On July 17, 2017, Puma Biotechnology received approval from the U.S. Food and Drug Administration (FDA) for NERLYNX® (neratinib) for the treatment of early stage HER2-positive breast cancer following adjuvant trastuzumab-based therapy, and the Company began shipment to wholesalers at the end of July 2017. Prior to the launch of NERLYNX the Company had no product revenue. Net product revenue from sales of NERLYNX in the second quarter of 2018 amounted to $50.8 million, compared to net product revenue of $36.0 million and $20.1 million in the first quarter of 2018 and fourth quarter of 2017, respectively.