Drugs in R&D (May 2022)

Evaluation of the Effect of Food on the Pharmacokinetics of SHR6390, An Oral CDK4/6 Inhibitor, in Healthy Volunteers

  • Yan-ping Liu,
  • Ming-hui Hu,
  • Ping-ping Lin,
  • Ting Li,
  • Shu-qin Liu,
  • Yu-ya Wang,
  • Shao-rong Li,
  • Xiang-kun Li,
  • Chen-jing Wang,
  • Yu Cao

DOI
https://doi.org/10.1007/s40268-022-00390-7
Journal volume & issue
Vol. 22, no. 2
pp. 175 – 182

Abstract

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Abstract Background and Introduction SHR6390 is a new developed highly effective and selective small-molecule oral CDK4/6 inhibitor. We aimed to evaluate the effect of food on the pharmacokinetics of SHR6390 tablets. Methods In an open-label two-way crossover study, 24 healthy Chinese volunteers were randomly divided into Group A and Group B, and 12 volunteers in each group received a single oral dose of a SHR6390 150-mg tablet under fasting and high-fat conditions. Blood samples were collected and determined for pharmacokinetic analyses. A liquid chromatography-tandem mass spectrometry method was developed and validated for determining the SHR6390 concentration. Results The time to maximum plasma concentration was not significantly affected by a high-fat diet. Compared with the fasting group, maximum plasma concentration, i.e., the area under the concentration–time curve (AUC0–t and AUC0–∞) was altered significantly, as evidenced by an increase of 56.9%, 38.6%, and 37.5% respectively. We identified seven metabolites of SHR6390 from the plasma samples, and we found no sex differences in metabolic pathways. All treatment-emergent adverse events were Grade 1 or 2. Conclusions Food intake increased the maximum plasma concentration, AUC0–t , and AUC0–∞ significantly compared with the fasting condition. Meanwhile, single-dose SHR6390 for two treatment cycles is safe. SHR6390 was administered in a fasting status in the pivotal phase III study (NCT03927456) and chosen for the final drug label.