PMID- 34517735 OWN - NLM STAT- Publisher LR - 20240220 IS - 1757-6199 (Electronic) IS - 1757-6180 (Linking) DP - 2021 Sep 14 TI - Cytochrome P450 enzymes: a review on drug metabolizing enzyme inhibition studies in drug discovery and development. LID - 10.4155/bio-2021-0132 [doi] AB - Assessment of drug candidate's potential to inhibit cytochrome P450 (CYP) enzymes remains crucial in pharmaceutical drug discovery and development. Both direct and time-dependent inhibition of drug metabolizing CYP enzymes by the concomitant administered drug is the leading cause of drug-drug interactions (DDIs), resulting in the increased toxicity of the victim drug. In this context, pharmaceutical companies have grown increasingly diligent in limiting CYP inhibition liabilities of drug candidates in the early stages and examining risk assessments throughout the drug development process. This review discusses different strategies and decision-making processes for assessing the drug-drug interaction risks by enzyme inhibition and lays particular emphasis on in vitro study designs and interpretation of CYP inhibition data in a stage-appropriate context. FAU - Rao Gajula, Siva Nageswara AU - Rao Gajula SN AUID- ORCID: 0000-0003-0449-4282 AD - Department of Pharmaceutical Analysis, National Institute of Pharmaceutical Education & Research (NIPER), Hyderabad, Balanagar, Telangana, 50003, India. FAU - Pillai, Megha Sajakumar AU - Pillai MS AD - Department of Pharmaceutical Analysis, National Institute of Pharmaceutical Education & Research (NIPER), Hyderabad, Balanagar, Telangana, 50003, India. FAU - Samanthula, Gananadhamu AU - Samanthula G AD - Department of Pharmaceutical Analysis, National Institute of Pharmaceutical Education & Research (NIPER), Hyderabad, Balanagar, Telangana, 50003, India. FAU - Sonti, Rajesh AU - Sonti R AUID- ORCID: 0000-0001-7631-5605 AD - Department of Pharmaceutical Analysis, National Institute of Pharmaceutical Education & Research (NIPER), Hyderabad, Balanagar, Telangana, 50003, India. LA - eng PT - Journal Article DEP - 20210914 PL - England TA - Bioanalysis JT - Bioanalysis JID - 101512484 SB - IM OTO - NOTNLM OT - cytochrome P450 enzymes OT - direct enzyme inhibition OT - drug discovery and development OT - drug-drug interactions OT - time-dependent enzyme inhibition EDAT- 2021/09/15 06:00 MHDA- 2021/09/15 06:00 CRDT- 2021/09/14 05:36 PHST- 2021/09/14 05:36 [entrez] PHST- 2021/09/15 06:00 [pubmed] PHST- 2021/09/15 06:00 [medline] AID - 10.4155/bio-2021-0132 [doi] PST - aheadofprint SO - Bioanalysis. 2021 Sep 14. doi: 10.4155/bio-2021-0132.