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#GLP-1 class

Coverage of the GLP-1 receptor agonist family and its successors.

Trial readouts

Tirzepatide vs semaglutide: indirect data

A 2026 analysis compared SURMOUNT-1 with STEP 1. Tirzepatide 10 mg and 15 mg were associated with greater weight reduction, but this was not a new trial.

1 Oct 2026 · PeptideMethods Editorial Team · 5 min read
Trial readouts

TRIUMPH-2: Retatrutide at 80 Weeks

TRIUMPH-2 found greater weight loss with retatrutide than placebo at 80 weeks in adults with obesity and type 2 diabetes.

30 Sept 2026 · PeptideMethods Editorial Team · 5 min read
Explainer

Semaglutide in Pediatric Craniopharyngioma

A 20-patient retrospective series links semaglutide with lower BMI in adolescents with craniopharyngioma-related obesity, but cannot prove causation.

30 Sept 2026 · PeptideMethods Editorial Team · 4 min read
Trial readouts

Tirzepatide lean-mass review

A 2026 review found that tirzepatide weight loss mostly came from fat, but lean mass also fell and muscle function was not measured.

30 Sept 2026 · PeptideMethods Editorial Team · 4 min read
Explainer

Tirzepatide and NAION: New Record

A new French journal record names tirzepatide and NAION, but its no-abstract PubMed entry cannot establish clinical details or causation.

30 Sept 2026 · PeptideMethods Editorial Team · 4 min read
Explainer

New amylin agonists for obesity and T2D

Zenagamtide, eloralintide and CagriSema have early to late-stage results in obesity and type 2 diabetes. Their evidence is not interchangeable.

29 Sept 2026 · PeptideMethods Editorial Team · 4 min read
Explainer

Incretin injections vs intensified insulin

A 2026 review found lower hypoglycaemia and weight with incretin-based injections versus intensified insulin, but the average HbA1c edge was small.

29 Sept 2026 · PeptideMethods Editorial Team · 4 min read
Trial readouts

Semaglutide and taste in mice

A 2026 mouse study found preserved taste responses during chronic semaglutide treatment, despite changes in sucrose-directed behavior.

29 Sept 2026 · PeptideMethods Editorial Team · 5 min read
Trial readouts

A two-timepoint semaglutide brain map

A mouse study mapped semaglutide-linked activity across more than 500 brain areas using two timepoints, finding 24 engaged regions.

29 Sept 2026 · PeptideMethods Editorial Team · 4 min read
Trial readouts

Surgery vs semaglutide and tirzepatide

A 44,025-person record study associated bariatric surgery with more weight loss than semaglutide or tirzepatide, but it was not randomized.

29 Sept 2026 · PeptideMethods Editorial Team · 4 min read
Trial readouts

Tirzepatide response after eight weeks

A SURMOUNT post hoc analysis linked early tirzepatide weight response with larger 72-week changes, while later responders still lost weight.

29 Sept 2026 · PeptideMethods Editorial Team · 4 min read
Trial readouts

Adolescent GLP-1 use: what remains unknown

A 2026 commentary reviews skeletal, reproductive and psychosocial questions around semaglutide and other GLP-1 drugs in adolescents.

28 Sept 2026 · PeptideMethods Editorial Team · 4 min read