Fat Loss In clinical trials

Petrelintide

Long-acting amylin analogue (ZP8396) from Zealand Pharma and Roche. Not a GLP-1: up to -10.7% body weight with notably better tolerability.

Calorize — peptide protocol & nutrition tracker

Dose range and vial size appear after age confirmation: 18+
Investigational substance, not approved as a medicine.

This substance is still in clinical trials and is not approved for use as a medicine in any country. The figures below come from published trial protocols; they describe what was studied, not what you should take.

Every figure on this page is a dose reported in published sources. It is reference information, not a recommendation and not a protocol to follow. Any decision about injecting is one to make with a doctor.

Medical disclaimer
Description and reported dosing

What is Petrelintide?

Petrelintide (ZP8396) is a long-acting amylin analogue. It works through the amylin satiety pathway rather than GLP-1, which is exactly what makes it interesting: in the phase 2 ZUPREME-1 trial the maximally effective dose produced no vomiting and no GI-related discontinuations.

Doses ahead. Adults only

What follows is dosing arithmetic and numeric protocols drawn from published sources and clinical trials. It describes what those sources report; it is not medical advice and not instructions for use. This part of the page is meant for people aged 18 and over.

The confirmation is kept in this browser, and on the account for signed-in users. The peptide description and its regulatory status are available without it.

Step-by-step guide
How to reconstitute and inject peptides
Doses ahead. Adults only

What follows is dosing arithmetic and numeric protocols drawn from published sources and clinical trials. It describes what those sources report; it is not medical advice and not instructions for use. This part of the page is meant for people aged 18 and over.

The confirmation is kept in this browser, and on the account for signed-in users. The peptide description and its regulatory status are available without it.

Medical Reality Check

Rapid weight loss burns muscle along with fat — that is what sits behind Ozempic face. Enough protein is what separates the two.

Check Protein Norm

We use our own cookie and analytics tools to understand how people find and use Calorize. If you came from a Google ad, we tell Google when you sign up or buy, to measure that ad. There are no ads inside the app. Your choice is remembered for a year.