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Pharmacokinetic analysis of selective TRPV2 inhibitor SET2 in rats

Linda Bartosova1, Gabriel Doka1, Eva Kralova1

  • 1Department of Pharmacology and Toxicology, Faculty of Pharmacy, Comenius University in Bratislava, Odbojarov 10, 832 32, Bratislava, Slovak Republic.

Scientific Reports
|September 1, 2025
PubMed

Insights

SET2, a selective TRPV2 inhibitor, shows rapid absorption and clearance in rats, with minimal acute cardiovascular effects. Further safety studies are needed due to a transient increase in plasma troponin I.

Area of Science:

  • Pharmacology
  • Biochemistry

Background:

  • The Transient Receptor Potential Vanilloid 2 (TRPV2) channel is implicated in cardiovascular injury, neurodegeneration, and cancer.
  • Selective TRPV2 inhibitors are needed for functional studies, but their pharmacokinetic profiles are largely unknown.

Purpose of the Study:

  • To characterize the in vivo pharmacokinetic profile of SET2, a novel selective TRPV2 inhibitor.
  • To assess the acute cardiovascular safety of SET2 in Wistar rats.

Main Methods:

  • Wistar rats received a single intraperitoneal dose of SET2 (25 mg/kg).
  • Plasma and urine samples were analyzed using ultra-high-performance liquid chromatography-mass spectrometry (UHPLC-MS).
  • Cardiovascular parameters (heart rate, blood pressure, ECG) and plasma troponin I were monitored.

Main Results:

  • SET2 achieved peak plasma concentration (≈3.55 µM) within 2 minutes, indicating rapid absorption.
  • The drug exhibited a short mean residence time (70.5 min) and rapid clearance.
  • Approximately 4.24% of the dose was excreted unchanged in urine over 48 hours.
  • No significant changes in heart rate, blood pressure, or ECG were observed.
  • A transient increase in plasma troponin I was noted, suggesting potential cardiac effects.

Conclusions:

  • SET2 demonstrates high plasma bioavailability, limited tissue distribution, and rapid elimination in rats.
  • SET2 appears to have minimal acute cardiovascular toxicity, but the observed troponin I elevation requires further investigation in chronic safety studies.
Keywords:
Cardio-metabolic effectsPharmacokineticsSET2TRPV2

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