Observational studyEndocrinology, diabetes & metabolism2025

Exploring Combined Use of Continuous Glucose Monitoring and Anti-Diabetes Medications on Glycaemic Control for People With Type 2 Diabetes Not Using Insulin.

Poorva M Nemlekar, Katia L Hannah, Courtney R Green, Gregory J Norman

Abstract readObservational Study
In one paragraph

Observational study in Endocrinology, diabetes & metabolism, 2025. The graph read 1 number from its abstract, feeding 1 cell of the map, but none could be read as for or against, so it casts no vote. Cited by 2 papers.

1number the graph read from it
0cells of the map it votes in
2citing papers in PubMed
field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

Read, but not usablea number the graph found but could not read as for or against

A1c changeCGM use vs CGM non-usersan association or prognostic statement, not a treatment comparison · t2dfeeds one cell of the map
Δ -0.45< 0.0001
CGM use was associated with a -0.45% greater A1c change among CGM users compared to CGM non-users (p < 0.0001).

clause the extractor read what became the number

2 · Its place on the map

Where it lands on the map

Rows are treatments, columns are outcomes. The coloured squares are the cells this paper feeds, coloured by the vote it casts there. Click one to jump to what this paper adds to it.

supports the treatmentfavours the comparatorno clear differenceread, but no usable result
3 · What it changes

What it adds to each cell

For every cell the paper feeds: the belief in the claim with and without this paper, and this paper's estimate drawn against every other readable study in the cell. The ringed dot is this paper.

Digital & care-delivery×glycemic control

No readable resultOpen on the map →What to test next →

1 readable study in this cell: 0 favour the treatment, 1 find no difference, 0 favour the comparator.

Belief with this paper
0.25no deciding trial · 0 families support, 0 contradict · against placebo
Without itNot a counted family in this claim, so removing it changes nothing.
← favours the treatmentfavours the comparator →
0 · no effect

This paper's own estimate is on a different scale from the rest of the cell, so it is not drawn here.

4 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

5 · Its place in the literature

Who cites it

2 citing papers in PubMed.

  1. Article
  2. Observational
6 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

7 · Who and what money

Authors and funding

4 authors.

Poorva M NemlekarHealth Economics and Outcomes Research, Clinical Affairs, Dexcom, Inc., San Diego, California, USA.ORCID https://orcid.org/0009-0003-7092-5295
Katia L HannahHealth Economics and Outcomes Research, Clinical Affairs, Dexcom, Inc., San Diego, California, USA.
Courtney R GreenMedical Affairs, Dexcom, Inc., San Diego, California, USA.ORCID https://orcid.org/0000-0002-9279-0649
Gregory J NormanHealth Economics and Outcomes Research, Clinical Affairs, Dexcom, Inc., San Diego, California, USA.ORCID https://orcid.org/0000-0001-7989-9597

Funding

Dexcom
8 · The paper itself

Abstract

The marked sentences are the ones the graph read a number from.

introductionContinuous glucose monitoring (CGM) offers a detailed view of glycaemic management, potentially enhancing the effectiveness of non-insulin, anti-diabetes medications. This study aimed to evaluate whether CGM use in combination with anti-diabetes medications is associated with changes in A1c among people with type 2 diabetes not using insulin. MATERIALS AND

methodsThis was a retrospective, observational analysis of administrative claims and linked laboratory data from Optum's Clinformatics Data Mart database. The study observation period covered 01/07/2018 through 30/06/2023 with 6-month baseline and follow-up periods. CGM use in conjunction with ≥ 1 of five anti-diabetes medication classes: metformin, sulfonylureas, sodium-glucose cotransporter-2 (SGLT2) inhibitors, dipeptidyl peptidase-4 (DPP-4) inhibitors and/or glucagon-like peptide-1 receptor agonists (GLP-1 RAs) was required. The primary outcome was change in A1c from baseline. Linear regression models tested the main and interaction effects of CGM and each anti-diabetes medication.

resultsOverall, 52,394 CGM-naïve adults with non-insulin-treated type 2 diabetes using anti-diabetes medications were identified (4086 CGM users; 48,308 CGM non-users). CGM use was associated with a -0.45% greater A1c change among CGM users compared to CGM non-users (p < 0.0001). After adjusting for covariates, CGM users experienced greater A1c reductions vs. CGM non-users with all medications, but statistically significant interactions showed that for DPP-4 inhibitors, GLP-1 RAs and sulfonylureas, there were greater decreases in A1c for CGM users vs. CGM non-users who were taking the medication compared to CGM users vs. CGM non-users who were not taking the medication. A1c change between CGM users vs. CGM non-users did not vary by metformin or SGLT2 inhibitor use. DISCUSSION: The findings suggest that CGM use could augment the glycaemic benefits of anti-diabetes medications in people with non-insulin treated type 2 diabetes. These results support broader adoption of CGM.

Indexed as

Blood GlucoseBlood Glucose Self-MonitoringDiabetes Mellitus, Type 2Glycemic ControlHypoglycemic AgentsAdultAgedContinuous Glucose MonitoringDipeptidyl-Peptidase IV InhibitorsFemaleGlycated HemoglobinHumansInsulinMaleMetforminMiddle AgedBlood GlucoseDipeptidyl-Peptidase IV InhibitorsGlycated Hemoglobinhemoglobin A1c protein, humanHypoglycemic AgentsInsulinMetforminSodium-Glucose Transporter 2 InhibitorsSulfonylurea Compoundscontinuous glucose monitoringdiabetes mellitusGLP‐1 receptor agonistnon‐insulin therapytype 2

Identifiers

PMID40851538
PMCPMC12375899

What Socratic holds

Texttitle and abstract
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the Socratic graph.