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Tirzepatide

Eli Lilly's dual GIP/GLP-1 incretin drug, sold as Mounjaro for diabetes and Zepbound for obesity, used in weight-loss and sleep apnea research.

Known aliases

  • Mounjaro
  • Zepbound

Current stories

scienceOne report1 publisher

Drugmakers are building addiction and Parkinson's programs on GLP-1 compounds

Lilly's brenipatide, tested for alcohol use disorder, has a half-life of 9-12 days against 5-7 for approved GLP-1 drugs, Nature reported. Kariya has early Parkinson's data on KP405. Baseline plans a phase III of BT-001 in early 2027.

Publishers:nature.com

Reality

Evidence40
Adoption15
Hype gap+20
Incentives35
Confidence55
scienceOne report1 publisher

CBL-514, an injection that kills fat cells, has cut weight regain after tirzepatide only in rats

In a phase 2 trial, 69.6% of people given CBL-514 lost at least 150 mL of subcutaneous fat at eight weeks, against none on placebo. Whether it can hold weight off after patients stop Ozempic or Wegovy has so far been tested only in animals.

Publishers:sciencedaily.com

Reality

Evidence40
Adoption
Not scored
Hype gap+30
Incentives55
Confidence50
investOne report1 publisher

Japan's obesity society warns cosmetic Mounjaro users off crash dieting on the drug

Japan's obesity society warned cosmetic GLP-1 users of side-effect risks, as 35 of about 950 Mounjaro side-effect reports involved dieting or cosmetic use. The health ministry separately said the drugs should not be used casually as weight-loss pills.

Publishers:en.sedaily.com

Reality

Evidence50
Adoption
Not scored
Hype gap+5
Incentives
Not scored
Confidence55
scienceOne report1 publisher

Retatrutide's top dose cut body weight by a quarter over 80 weeks in a 2,339-adult trial

Retatrutide's 12 mg dose cut body weight 25% over 80 weeks, versus 3.9% on placebo, in a 2,339-adult phase 3 trial in NEJM. Its near-30% two-year figure comes from 532 completers, and because placebo was the only comparator, the trial cannot rank the drug against Ozempic.

Publishers:sciencealert.com

Reality

Evidence65
Adoption
Not scored
Hype gap+20
Incentives70
Confidence60
scienceConfirmed2 publishers

Lilly's amylin add-on pushes tirzepatide weight loss to 23 percent among patients who stayed on it

Eli Lilly's 367-person trial found the top dose of tirzepatide plus eloralintide cut body weight 23.3%, against 14.8% on tirzepatide alone. Dropout ran far higher on the combination, so nobody has yet measured how much of that gain holds across everyone prescribed the pair.

Reality

Evidence60
Adoption
Not scored
Hype gap+30
Incentives65
Confidence55
scienceOne report1 publisher

Retatrutide cuts more than a fifth of body weight in Lilly's phase 3 diabetes trial

Eli Lilly's retatrutide cut body weight by more than 20% on average at its top dose in an 80-week phase 3 trial of 1,152 people with type 2 diabetes. Lilly calls that a first for the field, and it gives the four- and five-receptor drugs now in development a figure to beat in patients with diabetes.

Reality

Evidence68
Adoption
Not scored
Hype gap+12
Incentives72
Confidence62
scienceOne report1 publisher

Tirzepatide activates brown fat in obese mice even when their food intake is matched

University of Barcelona researchers found that tirzepatide activated calorie-burning brown fat in obese mice eating the same amount as untreated controls. The result points to an effect on metabolism beyond appetite that has not yet been tested in humans.

Publishers:sciencedaily.com

Reality

Evidence35
Adoption
Not scored
Hype gap+25
Incentives40
Confidence40
scienceOne report1 publisher

Two years off GLP-1s wiped out most of the heart benefit in a 333,000-veteran cohort

Veterans with type 2 diabetes who came off semaglutide or tirzepatide lost most of the cardiovascular benefit within two years, and the benefit only appeared in patients who had stayed on the drug past 18 months.

Publishers:sciencedaily.com

Reality

Evidence62
Adoption72
Hype gap+20
Incentives58
Confidence52
scienceOne report1 publisher

Lilly picked brenipatide's weekly dose from 212 volunteers enrolled by body mass index

A Phase I dose-selection study put brenipatide's half-life at 9 to 12.5 days. Lilly says that supports once-weekly dosing in the Phase III trials it is now running in major depressive disorder and alcohol use disorder.

Publishers:genengnews.com

Reality

Evidence45
Adoption25
Hype gap+35
Incentives82
Confidence58
scienceOne report1 publisher

Penn team flags menstrual and temperature symptoms in 400,000 GLP-1 Reddit posts

A University of Pennsylvania group read five years of GLP-1 discussion from nearly 70,000 Reddit users and came out with two symptom families worth a real study, plus a nausea signal that shows the method finds what is already known.

Publishers:sciencedaily.com

Reality

Evidence45
Adoption
Not scored
Hype gap+35
Incentives50
Confidence55
productOne report1 publisher

Pediatricians are putting 8-year-olds on GLP-1s four years below the label age

Semaglutide's approval starts above age 12 and tirzepatide's obesity approval at 18, but a published study and one Dallas hospital's own count both show children under 12 already taking these drugs, mostly for obesity and type 2 diabetes.

Publishers:gizmodo.com

Reality

Evidence48
Adoption52
Hype gap+15
Incentives62
Confidence45
scienceOne report1 publisher

A 55-person diet trial holds weight loss constant to isolate keto's liver effect

All three arms shed about a tenth of their body weight and improved muscle insulin sensitivity, so the separation showed up in the liver, where the keto arm cut fat and triglyceride production. Delivered meals bought the adherence that makes that readable.

Reality

Evidence54
Adoption
Not scored
Hype gap+26
Incentives46
Confidence48
leadershipOne report1 publisher

Twenty years of nudges, no movement: the CDC data behind the GLP-1 spending decision

Measured US adult obesity sat at 40.3 percent across 2013 to 2023 while severe obesity rose from 7.7 to 9.7 percent. The programs did not bend the line, and benefits committees now own the question.

Publishers:vox.com

Reality

Evidence66
Adoption79
Hype gap+8
Incentives38
Confidence54