The GLP-1 Data Series — Key to Health
GLP-1 Data

The GLP-1 Data Series

Comprehensive data on GLP-1 cost, persistence, weight regain, and ROI — compiled from peer-reviewed studies, claims data, and industry reports.

Objective compilations of every published data point on GLP-1s, organized for easy reference.

Every reference sourced. Updated regularly.

01
What GLP-1 Clinical Trials Actually Showed

Every major trial's headline results in one place — weight loss, completion rates, cardiovascular outcomes, and adverse events.

02
What GLP-1s Actually Cost

List prices, net costs after rebates, consumer self-pay, and Medicare negotiated prices — side by side for every drug. Includes an interactive cost calculator.

03
How Long People Stay on GLP-1s

Persistence rates from every published study, from 30 days through 3 years — including why reported 12-month rates range from 10% to 63% depending on the source, and what's actually improved since 2021.

04
What Happens When People Stop GLP-1s

Weight regain data from every trial withdrawal and extension study, plus metabolic parameter rebound. What the evidence says about indefinite treatment — and what that means when 92% of patients stop within 3 years.

05
The GLP-1 ROI Question

The only published real-world analysis found no medical cost offsets — costs actually increased $1,338 per member. How the SELECT trial counterargument falls apart, and what honest ROI modeling looks like.

06
GLP-1 Side Effects

GI adverse event rates from every pivotal trial, discontinuation-for-tolerability percentages, and the emerging signals on muscle mass loss, gallbladder disease, and pancreatitis — plus how real-world rates compare to the controlled trial numbers.

07
Real-World Outcomes

What large real-world studies actually show about GLP-1 weight loss at one year — and why the numbers are so different from clinical trials. Evidence from Cleveland Clinic, Truveta, Vanderbilt, Mayo Clinic, and the Danish national registry.

Compiled and maintained by Ray Wu, MD — physician-founder working on metabolic health technology. All data points sourced to peer-reviewed publications, claims analyses, or named industry reports.

Questions about this data?

We're happy to walk through any of the sources cited here or discuss what they mean for your situation.

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