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Targeted Peptide Drugs for Metabolic Diseases

A special issue of International Journal of Molecular Sciences (ISSN 1422-0067). This special issue belongs to the section "Molecular Endocrinology and Metabolism".

Deadline for manuscript submissions: 20 June 2026 | Viewed by 1884

Special Issue Editor

Special Issue Information

Dear Colleagues,

In recent years, we have witnessed the development of a plethora of novel peptide- and protein-based pharmacotherapies for the treatment of metabolic diseases. The crown jewels appear to be GLP-1 analogues, which are used in the treatment of obesity and type 2 diabetes, and have been shown to improve symptoms in MASLD. Furthermore, the improved availability of therapeutic options for other metabolic diseases has come under the spotlight (e.g., romosozumab for osteoporosis, the growth hormone antagonist pegvisomant, and the PTH analogue palopegteriparatide). Various novel targets and innovative compounds are on the brink of being introduced in clinical contexts.

Therefore, I am pleased to invite you, fellow researchers, to a Special Issue focused on targeted peptide drugs for metabolic diseases. Submitted manuscripts should explore advances in peptide-based interventions for key metabolic disorders, including (but not exclusively) the following:

  • Obesity;
  • Metabolic dysfunction-associated steatotic liver disease (MASLD);
  • Liver steatosis and fibrosis;
  • Atherosclerosis;
  • Hyperlipidemia;
  • Elevated lipoprotein(a) [Lp(a)] levels;
  • Hyperuricemia;
  • Type 2 diabetes mellitus;
  • Osteoporosis;
  • Acromegaly.

In this particular collection, major emphasis will be put on a pharmacotherapeutic approach in a variety of models, including in vitro and in vivo settings. Studies on the therapeutic modulation of metabolic pathways using precision peptide strategies would be of the utmost interest, and distinct attention will be given to emerging data on receptor targeting, lipid regulation, and inflammation resolution.

I look forward to your participation!

Dr. Lukasz Buldak
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 250 words) can be sent to the Editorial Office for assessment.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. International Journal of Molecular Sciences is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. There is an Article Processing Charge (APC) for publication in this open access journal. For details about the APC please see here. Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • metabolic disorders
  • peptide drugs
  • MASLD
  • receptor targeting
  • lipid regulation

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Published Papers (1 paper)

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Research

27 pages, 2457 KB  
Article
Agent- and Dose-Specific Intestinal Obstruction Safety of GLP-1 Receptor Agonists and SGLT2 Inhibitors: A Network Meta-Analysis of Randomized Trials
by Jiann-Jy Chen, Chih-Wei Hsu, Chao-Ming Hung, Mein-Woei Suen, Hung-Yu Wang, Wei-Chieh Yang, Brendon Stubbs, Yen-Wen Chen, Tien-Yu Chen, Wei-Te Lei, Andre F. Carvalho, Shih-Pin Hsu, Yow-Ling Shiue, Bing-Yan Zeng, Cheng-Ta Li, Kuan-Pin Su, Chih-Sung Liang, Bing-Syuan Zeng and Ping-Tao Tseng
Int. J. Mol. Sci. 2026, 27(2), 608; https://doi.org/10.3390/ijms27020608 - 7 Jan 2026
Cited by 2 | Viewed by 1570
Abstract
Glucagon-like peptide-1 (GLP-1) receptor agonists and sodium–glucose cotransporter-2 (SGLT2) inhibitors have reshaped pharmacological management of type 2 diabetes, but emerging safety signals suggest a possible association with intestinal obstruction. Because many candidates for these agents already harbor risk factors for ileus and bowel [...] Read more.
Glucagon-like peptide-1 (GLP-1) receptor agonists and sodium–glucose cotransporter-2 (SGLT2) inhibitors have reshaped pharmacological management of type 2 diabetes, but emerging safety signals suggest a possible association with intestinal obstruction. Because many candidates for these agents already harbor risk factors for ileus and bowel obstruction, clarifying agent- and dose-specific gastrointestinal safety is clinically important. We aimed to re-evaluate the risk of intestinal obstruction across individual GLP-1 receptor agonists and SGLT2 inhibitors, with particular attention to dose stratification. We systematically searched eight databases through 21 January 2025 to identify randomized controlled trials (RCTs) comparing GLP-1 receptor agonists or SGLT2 inhibitors with placebo or active comparators in adults. The primary outcome was incident intestinal obstruction (small or large bowel). A frequentist random-effects network meta-analysis estimated odds ratios (ORs) with 95% confidence intervals (CIs) across drugs and dose tiers; Bayesian models and surface under the cumulative ranking (SUCRA) metrics were used for sensitivity analyses and treatment ranking. Risk of bias and certainty of evidence were assessed with standard Cochrane and GRADE-adapted tools. Fifty RCTs (47 publications; 192,359 participants) met inclusion criteria. Overall, canagliflozin use was associated with a higher incidence of intestinal obstruction than control therapies (OR 2.56, 95% CI 1.01–6.49), corresponding to an absolute risk difference of 0.15% and a number needed to harm of 658. High-dose canagliflozin (300 mg/day) showed the clearest signal (OR 3.42, 95% CI 1.08–10.76). In contrast, liraglutide was associated with a lower risk of intestinal obstruction (OR 0.44, 95% CI 0.24–0.81), with an absolute risk reduction of 0.34% and a number needed to treat of 295. No other GLP-1 receptor agonist or SGLT2 inhibitor demonstrated a statistically significant increase in obstruction risk. Frequentist and Bayesian analyses yielded concordant estimates and rankings. From a randomized-trial perspective, intestinal obstruction risk is not elevated for most GLP-1 receptor agonists and SGLT2 inhibitors. A dose-dependent safety signal was observed only for high-dose canagliflozin, whereas liraglutide may confer a protective effect. These findings refine gastrointestinal safety profiles for modern antidiabetic agents and may inform perioperative bowel management, drug selection, and dose optimization in patients at risk for ileus or adhesive obstruction. Full article
(This article belongs to the Special Issue Targeted Peptide Drugs for Metabolic Diseases)
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