Tradipitant

(Nereus®)

Tradipitant

Drug updated on 4/27/2026

Dosage FormCapsules (oral; 85 mg)
Drug ClassSubstance P/neurokinin-1 (NK-1) receptor antagonist
Ongoing and
Completed Studies
ClinicalTrials.gov

Indication

  • Indicated for the prevention of vomiting induced by motion in adults.

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Summary
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  • This summary is based on the review of four randomized controlled trial(s). [1-4]
  • In adults with idiopathic and diabetic gastroparesis (n = 201), tradipitant did not reduce average nausea severity at week 12 in the ITT population (P = 0.741); significant improvement in nausea severity was reported in subjects with high blood levels of tradipitant.
  • In adults with a history of motion sickness during boat trips under variable sea conditions (n = 365), vomiting occurred in 18.3% with 170 mg tradipitant and 19.5% with 85 mg tradipitant versus 44.3% with placebo (p < 0.0001 for both dosages); severe nausea and vomiting occurred in 18.03% with tradipitant versus 37.70% with placebo (p < 0.0001).
  • In healthy volunteers (n = 24), tradipitant 85 mg b.i.d. for 9 days did not significantly affect gastric emptying, gastric volumes, satiation, or postprandial symptoms compared with placebo.
  • In adults with idiopathic and diabetic gastroparesis (n = 201), healthy participants without antiemetic treatment (n = 63), healthy volunteers assessed for gastric motor functions (n = 24), and adults with a history of motion sickness (n = 365), no specific safety outcomes or adverse effects were reported or assessed; the motion sickness scale validation study focused on scale validation rather than drug safety.
  • There is no population types or subgroups information available in the reviewed studies.

Product Monograph / Prescribing Information

Document TitleYearSource
Nereus (tradipitant) Prescribing Information2025Vanda Pharmaceuticals Inc., Washington, D.C.

Randomized Controlled Trials