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Peptide Zone is a news wire for peptide medicines such as GLP-1 drugs, amylin analogues and peptide vaccines. Each story covers one regulator decision, trial readout, industry deal or safety review, names its primary source and says what comes next. Nothing here is medical advice. About the newsroom

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Tradipitant GLP 1 vomiting trial reports 27 percent relative drop in Phase 3

Vanda Pharmaceuticals says its motion sickness drug Nereus lowered vomiting after a forced semaglutide dose in Phase 3, though the effect was smaller than in Phase 2 and full safety data are not public.

WASHINGTON

27%Relative reduction in any vomiting with Nereus versus placebo in Phase 3 Study 3601
  1. What's newVanda Pharmaceuticals said its oral NK1 blocker Nereus (tradipitant) met both main goals in Phase 3 Study 3601, with 43.0% vomiting on the drug against 58.5% on placebo after an untitrated semaglutide dose.
  2. Why it mattersNausea and vomiting are among the reasons people stop GLP 1 drugs, the company said. The Phase 3 effect was smaller than the 50% relative cut seen in Phase 2, and the trial did not measure whether people stayed on treatment.
  3. What's nextVanda plans to discuss the data with the FDA and file an sNDA, with no date given. Full results, safety tables and data in people titrating normally have not been released.

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  1. SAF · 10 Nov 2026A LiveNow Fox report on Yahoo Health says people on GLP 1 drugs can enjoy Thanksgiving with portion control, using a half vegetable plate and not fasting all day beforehand.
  2. TRL · 10 Nov 2026A medRxiv preprint posted 9 November 2026 reports that 15 adults on insulin or GLP 1 drugs at Homewell Practice in Havant joined monthly group education in 2022 and 2023, with the largest mean HbA1c fall, 12.4%, in the six who came four or more times.
  3. TRL · 9 Nov 2026IMPACT Phase 2b responder analyses showed far more pemvidutide patients than placebo patients improving on several noninvasive liver tests at once after 48 weeks, including 25.8% vs none in the strictest test.
  4. SAF · 8 Nov 2026A MassLive health column by a Westfield nurse practitioner warns that gray market peptides cause harm, citing a survey in which 3 in 10 of 1,000 users visited an emergency room. The column does not name the survey.
  5. IND · 8 Nov 2026Novo Nordisk now plans to launch the Wegovy pill in more than 20 countries by mid 2027, not end 2027, and raised its 2026 outlook after Q3 pill sales of DKK 5.39 billion beat forecasts.

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