Low baseline HbA1c and reduced eGFR are associated with relatively unfavorable body recomposition after SGLT2 inhibitor therapy in type 2 diabetes
- Design
- Retrospective cohort · 36 participants · Intermediate outcome
- Match to healthy normal-weight adults aged 55–75
- Different population[Auto] Participants had type 2 diabetes (age/BMI not reported in abstract).
- Could weight loss explain it?
- Unknown[Auto] Harm signal; weight-loss mediation not the relevant question, but consider whether harms relate to rapid weight loss or reduced intake.
- Study tier
- Study tier 3[Auto] Observational design; confounding by indication and healthy-user effects cannot be excluded (auto-provisional).
- Assessment
- Version 1 · automatic, not yet reviewed by a person · Sep 13, 2026
Study facts come from the paper. Population match, weight-loss explanation and study tier are our judgments, made against the reference group of healthy normal-weight adults aged 55–75.
[Auto, unreviewed; quoted from abstract conclusions] Lower baseline HbA1c and reduced eGFR were associated with lower BRS after SGLT2i therapy in patients with T2DM. These exploratory findings support the importance of individualized pharmacotherapy for type 2 diabetes with consideration of muscle-to-fat balance.
01Findings
What the study reported
- Drugs
- Class unspecified
- Primary outcome
- Not extracted
- Effect
- Not extracted
- 95% confidence interval
- Not extracted
- Follow-up
- 12 months
- Adverse events
- Not extracted
- Limitations
- Auto-classified from abstract only; effect estimates, adverse events and limitations not extracted. Requires manual review.
Who was studied
- Diabetes status
- type 2 diabetes present (all or most)
- Sample size
- 36
Study quality details
- Study design
- Retrospective cohort
- Sample size
- 36
- Randomization
- no
- Blinding
- not stated
- Comparator
- not stated
- Follow up duration
- 12 months
- Outcome type
- intermediate
- Replication
- not assessed (auto)
- Consistency with other evidence
- not assessed (auto)
- Population applicability
- INDIRECT
- Statistical precision
- not extracted
- Risk of bias
- not assessed (auto)
- Funding conflicts
- unclear
- Peer review status
- yes
02Funding
Funding and conflicts
- Funding
- not reported in abstract
- Industry funded
- Unclear
- Manufacturer
- None identified
- Sponsor role
- not reported in abstract
- Author conflicts
- The author(s) declared that this work was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest.
- Independent replication
- unknown
Funding is shown on every study and never used to score it.
04Source
The source, as retrieved
Abstract
[AIMS] Sodium-glucose cotransporter 2 inhibitors (SGLT2i) and glucagon-like peptide-1 receptor agonists (GLP-1RAs) improve glycemic control and promote weight loss, but their effects on the relative balance between skeletal muscle and fat mass remain incompletely understood. This study examined treatment-associated body composition changes in patients with type 2 diabetes mellitus (T2DM), focusing on muscle-to-fat balance. [METHODS] In this multicenter retrospective cohort study, we analyzed body composition changes 12 months after initiation of SGLT2i (n = 36), GLP-1RA (n = 17), or GLP-1RA add-on to SGLT2i therapy (n = 20). Changes in appendicular skeletal muscle mass (ΔASM) and body fat mass (ΔBFM) were assessed using bioelectrical impedance analysis. The Body Recomposition Score (BRS) was defined as ΔASM - ΔBFM and used as an exploratory index of the relative balance between muscle and fat mass changes; BRS < 0 was operationally defined as indicating relatively unfavorable body recomposition. An independent external cohort of patients with T2DM (n = 148) was used for external assessment. [RESULTS] ΔBFM and ΔASM were positively correlated with changes in body weight (ΔBW) in all treatment groups. However, ΔASM and ΔBFM were positively correlated only in the GLP-1RA group, whereas no such correlation was observed in the SGLT2i or GLP-1RA add-on to SGLT2i groups, suggesting interindividual heterogeneity in muscle-to-fat balance changes. In the SGLT2i group, BRS was positively correlated with baseline HbA1c (r = 0.36, p = 0.029) and estimated glomerular filtration rate (eGFR; r = 0.34, p = 0.040). No baseline variables correlated significantly with BRS in the other groups. Exploratory receiver operating characteristic analyses identified Youden index-derived cut-offs for discriminating BRS < 0 in the SGLT2i group: 6.6% for baseline HbA1c and 65 mL/min/1.73 m2 for eGFR. In the external cohort, BRS, calculated as the change in total skeletal muscle mass (ΔSMM) - ΔBFM at 4 weeks after SGLT2i initiation, showed significant positive correlations with baseline HbA1c and eGFR. [CONCLUSIONS] Lower baseline HbA1c and reduced eGFR were associated with lower BRS after SGLT2i therapy in patients with T2DM. These exploratory findings support the importance of individualized pharmacotherapy for type 2 diabetes with consideration of muscle-to-fat balance. [CLINICAL TRIAL REGISTRATION] https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000055239, identifier UMIN000048469; https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000055242, identifier UMIN000048471.