PepBloom

Petrelintide

An experimental long-acting human amylin analog from Zealand Pharma and Roche, taken weekly.

Evidence
Ongoing clinical research
Half-life
Days
Sources
2 cited

Is petrelintide FDA-approved?

Investigational. Not FDA-approved.

Overview

Petrelintide is built to feel more like natural amylin, with the hope of fewer stomach side effects than GLP-1 medicines. In the 28-week ZUPREME 1 phase 2 trial, people with obesity lost about 8–10% of body weight on average depending on dose.

How it works

It acts on amylin and calcitonin receptors in the brain to increase fullness and slow the stomach.

How long does petrelintide stay in the body?

Long enough for once-weekly shots in trials.

What it's studied for

Reported side effects

Related: Maridebart Cafraglutide, Eloralintide, Amycretin, Pemvidutide.

Sources

The studies and prescribing labels this page is written from.

  1. Petrelintide for the treatment of obesity (ZUPREME 1): a phase 2 trial. Lancet Diabetes Endocrinol, 2026 PubMed
  2. Development of Petrelintide: a Potent, Stable, Long-Acting Human Amylin Analogue. J Med Chem, 2025 PubMed

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