Specialty Drug Approvals: Review 2014 and a Forecast for 2015
Click image to enlarge The impact of specialty drugs continues to increase in both drug utilization and spend. In 2012, specialty drug spend accounted for approximately $87 billion, or about 3.1% of national health spend in the United States. In 2020, the forecasted specialty drug spend is expected to be $400 billion, or about 9.1% of national health spend. In addition, within 4 years, analysts predict that 7 of the top 10 drugs in terms of sales will be specialty products.1 Given this expected growth, the specialty drug pipeline will be of particular interest to patients, prescribers, payers, and pharmacies. New specialty drug approvals As of December 3, 2014, FDA had approved 39 new molecular entities and new therapeutic biologics this year. While there is no universal definition of a specialty drug, approximately 19 of this year’s approvals fit commonly used definitions of specialty products (Table 1).6,7 Of these 19, oncology and rare diseases represented the majority of approvals, a trend that is expected to continue through 2015.2 In The Pipeline Oncology Looking ahead to the remainder of 2014 and 2015, the pipeline is again forecasted to have the highest number of approvals in oncology, with approximately one dozen expected approvals for a variety of cancers (Table 2).3 Programmed cell death–1 (PD-1) drugs stand out as an especially promising class of therapy. Pembrolizumab (Keytruda—Merck) was the first of this class to earn FDA approval for the treatment of unresectable or metastatic melanoma. Pembrolizumab, along with fellow experimental PD-1 drug nivolumab (Opdivo—Bristol-Myers Squibb), have earned breakthrough designations from FDA and are likely to see success expanding into other indications. Trials are currently under way with PD-1 agents for a number of cancers, including lung, liver, brain, and solid tumors. Other pipeline drugs are in late stages of development for the treatment of breast, melanoma, non–small cell lung, ovarian, and pancreatic cancers, as well as hematologic malignancies such as leukemia and multiple myeloma. Click image to enlarge Hepatitis C Hepatitis C (HCV) continues to have one of the most intriguing pipelines of any disease state. Within the last year, the approvals of sofosbuvir (Sovaldi—Gilead) and simeprevir (Olysio—Janssen) as individual agents have led to major changes in the treatment of HCV. Gilead’s Harvoni, the combination of sofosbuvir and ledipasvir, was approved in October 2014. In addition, sofosbuvir and simeprevir used together was approved in November 2014. Both of these combination therapies show high sustained viral response rates and are interferon-free, oral regimens. Competition should come from the AbbVie “3D” HCV combination therapy composed of ombitasvir, paritaprevir, and ritonavir (Viekirax) used in combination with dasabuvir (Exviera). An FDA decision for this combination is expected by December 22, 2014. In addition, Merck’s HCV combination of MK-5172 and MK-8742 is also showing good effectiveness in clinical trials. Tough competition from fast-paced innovation in the HCV market has taken a toll on other pipeline agents. Faldaprevir, a late-stage drug from Boehringer Ingelheim, was abandoned. Bristol-Myers Squibb’s daclatasvir and asunaprevir, taken together as a two-drug combination therapy, was…