A Long-Acting PYY 3–36 Analog Mediates Robust Anorectic Efficacy with Minimal Emesis in Nonhuman Primates

Shamina M. Rangwala, Katharine D'Aquino, Yue Mei Zhang, Lindsay Bader, Wilson Edwards, Songmao Zheng, Annette Eckardt, Ann Lacombe, Rebecca Pick, Veronica Moreno, Lijuan Kang, Wenying Jian, Eric Arnoult, Martin Case, Celia Jenkinson, Ellen Chi, Ronald V. Swanson, Paul Kievit, Kevin Grove, Mark MacielagMark D. Erion, Ranabir SinhaRoy, James N. Leonard

Research output: Contribution to journalArticlepeer-review

44 Scopus citations


The gut hormone PYY 3–36 reduces food intake in humans and exhibits at least additive efficacy in combination with GLP-1. However, the utility of PYY analogs as anti-obesity agents has been severely limited by emesis and rapid proteolysis, a profile similarly observed with native PYY 3–36 in obese rhesus macaques. Here, we found that antibody conjugation of a cyclized PYY 3–36 analog achieved high NPY2R selectivity, unprecedented in vivo stability, and gradual infusion-like exposure. These properties permitted profound reduction of food intake when administered to macaques for 23 days without a single emetic event in any animal. Co-administration with the GLP-1 receptor agonist liraglutide for an additional 5 days further reduced food intake with only one animal experiencing a single bout of emesis. This antibody-conjugated PYY analog therefore may enable the long-sought potential of GLP-1/PYY-based combination treatment to achieve robust, well-tolerated weight reduction in obese patients.

Original languageEnglish (US)
Pages (from-to)837-843.e5
JournalCell Metabolism
Issue number4
StatePublished - Apr 2 2019


  • GLP-1
  • PYY
  • body weight
  • emesis
  • food intake
  • gastric bypass surgery
  • gut peptide hormone
  • obesity
  • tolerability

ASJC Scopus subject areas

  • Physiology
  • Molecular Biology
  • Cell Biology


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