Abstract
2543 Background: Trials using randomized designs have been conducted for decades to demonstrate efficacy of novel anti-cancer drugs (NACD). Recently, several NACD have shown high antitumor activity in early phase studies, prompting suggestions that NRCT could expedite drug development. We sought to determine what changes have occurred in numbers of NACD RCT vs NRCT conducted from 2004-2016. Methods: We reviewed a database of NACD clinical trials conducted by INC (excluding phase I and I/II trials) and classified them by RCT vs NRCT, grouped by year (≤ 2010 or > 2010). We queried Citeline Trialtrove database for industry sponsored, phase 2 trials (P2T) initiated from 2006-2016 and examined numbers of RCT vs NRCT by year.A more detailed analysis of non-small cell lung cancer (NSCLC) clinical trials based on drug type category - Immunooncology (IO) vs. all other mechanims of action (NIO) was performed. Results: 190 INC-conducted trials were reviewed. 58 trials (31%) were performed ≤ 2010 and 132 trials (69%) > 2010. Over this period, NRCT (n = 107, 56%) outnumbered RCT (n = 83, 44%). Whereas RCT outnumbered NRCT from 2004-2010 (74% vs 52%), after 2010, NRCT outnumbered RCT (58% vs 42%). Citeline Trialtrove search revealed 4776 industry sponsored P2T initiated from 2006-2016. The total number of P2T started annually was highest in 2007 (n = 621), decreasing to a low of 375 in 2016. The proportion of phase 2 RCT demonstrated an increase from 27% (n = 166) in 2006 to a peak plateau of 37-39% from 2011-2014, followed by a drop to 33% in 2015 and 29% in 2016. Among IO studies, RCT declined in 2015-6 vs. previous years, and a decreased for all NACD in 2016 vs. previous years also was noted. For studies in NSCLC, declines in RCT were evident from 2015-6 vs. previous years ( 45% in 2007-14 vs. 25% in 2015-6). Conclusions: Our data indicate a trend toward fewer trials of NACD using randomized designs and more studies using non-randomized designs, with overall fewer P2T initiated in the past year. This change reflects shifts in NACD development pathways, related to a better understanding of cancer biology, drive to develop personalized treatment and a more flexible regulatory drug approval process.
Published Version
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