A significant examine of US veterans means that GLP-1 diabetes drugs could affect addiction-related outcomes, revealing a stunning connection between metabolic remedies and substance use danger.
Examine: Glucagon-like peptide-1 receptor agonists and danger of substance use problems amongst US veterans with kind 2 diabetes: cohort examine. Picture Credit score: Kotcha Ok / Shutterstock
A latest examine printed within the British Medical Journal means that drugs generally prescribed for kind 2 diabetes (T2D) may additionally be related to a diminished danger of substance use problems (SUDs). These findings level to an sudden hyperlink between diabetes remedy and dependancy danger.
Researchers examined the results of initiating glucagon-like peptide-1 (GLP-1) receptor agonists (RAs) amongst United States (US) veterans with T2D. They discovered that folks beginning these medication had a decrease danger of incident SUDs. Amongst these already dwelling with such situations, the drugs have been additionally linked to fewer antagonistic outcomes, together with SUD-related hospitalizations, overdose, and suicidal ideation or try.
The findings spotlight a possible new position for these diabetes remedies. Nevertheless, additional analysis is required to verify their broader scientific influence. SUDs stay a serious well being problem amongst veterans.
Background: GLP-1 Receptor Agonists and Mind Reward Pathways
GLP-1 RA drugs are extensively prescribed to deal with T2D. Rising proof means that these medication may additionally have an effect on mind pathways linked to dependancy. Preclinical analysis means that these drugs could cross the blood-brain barrier (BBB) and act on areas concerned in reward, motivation, and impulse management. These actions could affect dopamine signaling within the reward circuitry of the mind.
Preclinical research point out that GLP-1 RAs could cut back the reinforcing results of drugs resembling nicotine, alcohol, opioids, and cocaine. Observational human research have additionally reported decrease dangers of sure SUDs following remedy initiation. Nevertheless, proof for broader advantages stays restricted. Massive-scale research evaluating the GLP-1 receptor agonist drug class’s potential position in stopping or enhancing SUD outcomes are scarce.
Examine Design and Veteran Cohort
On this cohort examine, researchers examined the affiliation between GLP-1 RAs and SUD amongst T2D sufferers receiving care by way of the US Division of Veterans Affairs (VA) healthcare system, together with over 1,000 outpatient clinics and 170 medical facilities.
The examine inhabitants included veterans with and and not using a prior historical past of SUDs. All individuals have been actively utilizing VA healthcare providers, outlined as having at the very least two scientific encounters and one pharmacy file within the 12 months earlier than enrollment. The researchers excluded people who beforehand used GLP-1 RAs, and people with drug contraindications, resembling gastroparesis, diabetic ketoacidosis, thyroid most cancers, pancreatitis, extreme hypoglycemia, or extreme renal impairment.
Knowledge Sources and Goal Trial Emulation
The investigators emulated eight parallel goal trials inside an active-comparator framework. Seven of those analyses assessed the event of incident SUDs amongst 524,817 individuals. One evaluation targeted on outcomes amongst 81,617 people with a previous historical past of SUD. In complete, the group analyzed digital well being file information obtained from 606,434 individuals.
The dataset included data on outpatient visits, hospitalizations, pharmacy data, important indicators, laboratory outcomes, and Medicare information. The researchers additionally estimated the Space Deprivation Index (ADI) derived from individuals’ residential addresses to evaluate socioeconomic standing.
Examine Outcomes and Statistical Evaluation
The first examine outcomes included the initiation of alcohol, cocaine, hashish, opioid, and nicotine use problems. Amongst individuals dwelling with SUD, researchers evaluated antagonistic outcomes resembling SUD-related hospitalizations, emergency division (ED) visits, overdose, suicidal ideation, and SUD-related mortality. They in contrast these outcomes with these noticed after initiating sodium-glucose cotransporter 2 (SGLT-2) inhibitors.
The group adopted the individuals for as much as three years. They used inverse probability-weighted Cox survival fashions to estimate the hazard ratios (HRs) and three-year internet danger variations (NRD) per 1,000 people for statistical evaluation.
Outcomes: Decreased Threat of Substance Use Problems
Compared with SGLT-2 inhibitor use, initiating GLP-1 RAs was linked to a decreased danger of alcohol use dysfunction (HR, 0.82; NRD, −5.57). GLP-1 RA initiation was additionally linked to decrease dangers of hashish use dysfunction (0.86; −2.25), cocaine use dysfunction (0.80; −0.97), nicotine use dysfunction (0.80; −1.64), opioid use dysfunction (0.75; −0.86), and different substance use problems (0.87; −1.12). The composite examine final result, together with all new-onset SUDs, confirmed related outcomes (0.86; −6.61).
Outcomes Amongst People With Current SUD
Amongst people dwelling with SUD, GLP-1 RA initiation was linked to diminished SUD-associated ED visits (0.69; −8.92), hospitalizations (0.74; −6.23), overdose occasions (0.61; −1.49), suicidal ideation (0.75; −9.95), and SUD-related mortality (0.50; −1.52). Findings on remedy adherence aligned with these noticed for remedy initiation in new-onset SUDs and associated antagonistic occasions amongst people with SUD.
Sensitivity analyses utilizing sulfonylurea initiators as controls, a number of lookback intervals, overlap weighting, common remedy results on controls, truncation cut-offs, and trimmed propensity rating thresholds yielded related outcomes, supporting the robustness of the findings.
Conclusions: Potential Position of GLP-1 Medicine in Dependancy Prevention
The findings recommend that initiating GLP-1 RAs could supply advantages past glucose management for T2D sufferers. The drugs have been related to a decrease danger of new-onset SUDs and with fewer associated antagonistic outcomes, together with overdose, hospitalizations, and suicidal ideation, amongst these dwelling with SUDs. The outcomes spotlight the potential position of GLP-1 RAs in SUD prevention and administration.
Clinically, the findings could inform remedy issues, notably for diabetic people who’re additionally in danger for or experiencing SUDs. Nevertheless, clinicians should weigh potential advantages towards identified antagonistic results, underscoring the necessity for additional analysis and individualized scientific decision-making. As a result of this was an observational examine performed in a predominantly older male veteran inhabitants, the findings can not set up causation, could not totally generalize past the VA healthcare system, and residual confounding can’t be excluded regardless of statistical adjustment.
Journal reference:
- Miao Cai, Taeyoung Choi, Yan Xie, and Ziyad Al-Aly. (2026). Glucagon-like peptide-1 receptor agonists and danger of substance use problems amongst US veterans with kind 2 diabetes, cohort examine. British Medical Journal, 392. DOI: 10.1136/bmj-2025-086886, https://www.bmj.com/content material/392/bmj-2025-086886










