First-in-human study to evaluate the safety, tolerability and pharmacokinetics of a novel analgesic and antipyretic drug with structural similarity to acetaminophen

Regul Toxicol Pharmacol. 2022 Oct:134:105236. doi: 10.1016/j.yrtph.2022.105236. Epub 2022 Aug 5.

Abstract

JNJ-10450232 (NTM-006) is a new molecular entity that comprises structural similarities to acetaminophen and provides comparable analgesia in animals and humans without causing the hepatotoxicity associated with acetaminophen overdose in preclinical models. This double-blind, placebo-controlled, first-in-human study evaluated the safety, tolerability, and pharmacokinetics of JNJ-10450232 (NTM-006) following single (50-6000 mg) and multiple (250-2500 mg twice daily for 8 days) doses in healthy male volunteers. JNJ-10450232 (NTM-006) was absorbed within 1-3 h, except at high doses at which Cmax was delayed and bimodal, while increases in AUC were more than dose proportional. CL/F and Vd/F decreased approximately 3-fold with increasing single doses up to 6000 mg and multiple doses up to 1000 mg, resulting in similar t½ values that ranged from 8 to 10 h across doses. JNJ-10450232 (NTM-006) was generally safe and well tolerated, and no dose-limiting toxicities were observed. Transient increases in indirect bilirubin were noted at post-baseline timepoints due to UGT1A1 inhibition, without any evidence of adverse hepatic effects. Macular rash and generalized erythema were the most common drug-related adverse events after multiple doses.

Keywords: Acetaminophen; Analgesic; NSAID; New molecular entity; Non-opioid.

Publication types

  • Randomized Controlled Trial

MeSH terms

  • Acetaminophen / adverse effects
  • Analgesics
  • Antipyretics* / adverse effects
  • Area Under Curve
  • Dose-Response Relationship, Drug
  • Double-Blind Method
  • Humans
  • Male

Substances

  • Analgesics
  • Antipyretics
  • Acetaminophen