Bullfrog-Derived GLP-1 Peptide Outperforms Semaglutide and Produces 38% Weight Loss When Combined With Amylin Analog

A novel bullfrog-derived GLP-1 analogue (bGLP-10) outperformed semaglutide in reducing blood sugar and food intake in obese mice, and when combined with the amylin analog cagrilintide, achieved 38.4% weight loss — significantly more than the semaglutide-cagrilintide combination (23.0%).

Sun, Xiao et al.·Peptides·2024·Preliminary Evidenceanimal study
RPEP-09346Animal studyPreliminary Evidence2024RETHINKTHC RESEARCH DATABASErethinkthc.com/research

Quick Facts

Study Type
animal study
Evidence
Preliminary Evidence
Sample
N=Multiple groups of DIO mice
Participants
Diet-induced obesity mice

What This Study Found

bGLP-10 showed superior albumin affinity and receptor potency. At 10 nmol/kg, bGLP-10 significantly outperformed semaglutide in blood sugar reduction and food intake suppression (p<0.001). Chronic combination results: bGLP-10 + cagrilintide = -38.4% weight loss (p<0.001) vs semaglutide + cagrilintide = -23.0% vs bGLP-10 alone = -16.1% vs semaglutide alone = -10.9% vs cagrilintide alone = -5.7%. Superior glucose control and liver lipid management vs semaglutide-cagrilintide (p<0.001).

Key Numbers

10 bGLP-1 analogues designed. bGLP-10 showed superior albumin affinity and receptor potency. Outperformed semaglutide in DIO mice.

How They Did This

In vitro receptor binding and activation assays. In vivo: diet-induced obesity (DIO) mice on high-fat diet. Acute studies for blood sugar and food intake. Chronic combination study with bGLP-10 and/or cagrilintide vs semaglutide and/or cagrilintide. Outcomes: body weight, blood glucose, liver lipids.

Why This Research Matters

The combination of GLP-1 and amylin analogues is the next frontier in obesity treatment (Novo Nordisk's CagriSema is in phase 3 trials). This study suggests that natural GLP-1 peptides from non-mammalian species may be even more effective than current drugs, and that the right GLP-1-amylin combination could achieve unprecedented weight loss levels.

The Bigger Picture

Nature's peptide diversity is an underexplored resource for drug development. Bullfrog GLP-1 differs from human GLP-1, and these differences may confer therapeutic advantages. The 38.4% weight loss achieved with the bGLP-10-cagrilintide combination approaches surgical levels, suggesting next-generation peptide combinations could match or exceed bariatric surgery outcomes.

What This Study Doesn't Tell Us

Mouse study only — DIO mice don't fully model human obesity. No pharmacokinetic data in larger animals or humans. No safety/tolerability assessment. The comparison to semaglutide may not reflect optimized dosing. bGLP-10 is a novel compound with no clinical development track record.

Questions This Raises

  • ?Would bGLP-10's superiority over semaglutide hold in humans, or is it species-specific?
  • ?What makes bullfrog GLP-1 structurally superior — which modifications drive the enhanced activity?
  • ?Could the 38.4% weight loss level achieved in mice translate to clinically meaningful superiority over CagriSema in humans?

Trust & Context

Key Stat:
38.4% weight loss The bullfrog GLP-1 analogue bGLP-10 combined with amylin analog cagrilintide achieved 38.4% weight loss in obese mice — significantly more than the semaglutide-cagrilintide combination at 23.0%
Evidence Grade:
Rated preliminary: impressive preclinical results in DIO mice but no human data. The head-to-head comparison with semaglutide adds value but species translation is uncertain.
Study Age:
Published in 2024. Timely given ongoing CagriSema (semaglutide + cagrilintide) clinical trials.
Original Title:
Identification and utility exploration of a highly potent and long-acting bullfrog GLP-1 analogue in GLP-1 and amylin combination therapy.
Published In:
Peptides, 177, 171203 (2024)
Database ID:
RPEP-09346

Evidence Hierarchy

Meta-Analysis / Systematic Review
Randomized Controlled Trial
Cohort / Case-Control
Cross-Sectional / ObservationalSnapshot without intervening
This study
Case Report / Animal Study
What do these levels mean? →

Frequently Asked Questions

Could a frog-derived peptide really be better than Ozempic?

In mice, yes — bGLP-10 from bullfrog GLP-1 was significantly more effective than semaglutide at the same dose. Combined with the amylin drug cagrilintide, it achieved 38% weight loss compared to 23% for semaglutide + cagrilintide. However, mouse results don't always translate to humans, so clinical trials would be needed.

What is combination GLP-1 + amylin therapy?

GLP-1 and amylin are both natural hormones that suppress appetite through different brain pathways. Combining their synthetic versions creates a more powerful weight loss effect than either alone. Novo Nordisk's CagriSema (semaglutide + cagrilintide) is in late-stage clinical trials. This study suggests that alternative GLP-1 peptides could make even better combinations.

Read More on RethinkPeptides

Cite This Study

RPEP-09346·https://rethinkpeptides.com/research/RPEP-09346

APA

Sun, Xiao; Yang, Dawei; Li, Yan; Shi, Jingjing; Zhang, Xiaolong; Yi, Tingzhuang. (2024). Identification and utility exploration of a highly potent and long-acting bullfrog GLP-1 analogue in GLP-1 and amylin combination therapy.. Peptides, 177, 171203. https://doi.org/10.1016/j.peptides.2024.171203

MLA

Sun, Xiao, et al. "Identification and utility exploration of a highly potent and long-acting bullfrog GLP-1 analogue in GLP-1 and amylin combination therapy.." Peptides, 2024. https://doi.org/10.1016/j.peptides.2024.171203

RethinkPeptides

RethinkPeptides Research Database. "Identification and utility exploration of a highly potent an..." RPEP-09346. Retrieved from https://rethinkpeptides.com/research/sun-2024-identification-and-utility-exploration

Access the Original Study

Study data sourced from PubMed, a service of the U.S. National Library of Medicine, National Institutes of Health.

This study breakdown was produced by the RethinkPeptides research team. We analyze and report published research findings without making health recommendations. All interpretations are based solely on the published abstract and study data.