Huddinge Division of Neurology, Karolinska Institute, Huddinge University Hospital, Sweden Hospital,
S-141 86, Huddinge
Sweden
Research Article
Regrowth Concentration Zero (RC0) as Complementary Endpoint Parameter to Evaluate Compound Candidates During Preclinical Drug Development for Cancer Treatment
Author(s): Avramidis Dimitrios, Cruz Mabel, Sidén Åke, Tasat Deborah Ruth and Yakisich J. SebastianAvramidis Dimitrios, Cruz Mabel, Sidén Åke, Tasat Deborah Ruth and Yakisich J. Sebastian
The screening process for potential anticancer drugs involves expensive and time consuming preclinical and clinical trials (CT) before a drug is approved for clinical use (CU). At present, there is a “bottleneck” at the CT/CU transition because many drugs that showed promising results during preclinical research did not pass clinical trials. We speculated that the endpoint parameters (the inhibitory concentration 50 (IC50) or lethal concentration 100 (CL100)) commonly used in proliferation assays for short-term periods (24-72 h) are not useful to predict the antiproliferative effect in vivo, especially during clinical trials. We propose the use of a parameter, regrowth concentration 0 (RC0), which will define the concentration and time necessary to kill 100 % of the cells and prevent regrowth when drug is removed. The RC0 might introduce a new bottleneck at the preclinical.. Read More»
DOI:
10.4172/1948-5956.1000003
Cancer Science & Therapy received 5282 citations as per Google Scholar report