#1 HbA1c
Metformin Therapies → HbA1c
Evidence Intelligence™
- EvidenceScore™
- 88
- Strong
- ImpactScore™
- 83
- Positive
- ConsistencyScore™
- 86
- consistent
Supporting studies: Based on 8 studies
Explore evidenceGlycemic Control
Last updated: July 15, 2026
Key takeaway
Glycemic Control has evidence across 10 diabetes-related interventions, with strongest support for Metformin Therapies, GLP-1 Receptor Agonists and Diabetes Self-Management Education and Support (DSMES) Programs.
Evidence status
Extensive ResearchEvidence Base: 81/100
Related Evidence Topics
Evidence Intelligence™
Every evidence topic is generated from structured relationships across diabetes research, including topics, interventions, outcomes, and individual studies.
569
Evidence relationships
745
Studies reviewed
24
Interventions evaluated
Strongest evidence area
Metformin Therapies
Top Evidence Areas
Showing grouped evidence. Expand in Evidence Explorer for detailed intervention-outcome pairs.Open Evidence Explorer
| Rank | Intervention group | Outcome group | EvidenceScore™ | ImpactScore™ | Consistency | Studies | Effectiveness | Action |
|---|---|---|---|---|---|---|---|---|
| #1 | Metformin Therapies | HbA1c | 88/100Strong | 83/100Positive | 86/100consistent | 8 | moderate_positive | Explore evidence |
| #2 | GLP-1 Receptor Agonists | HbA1c | 87/100Strong | 93/100Very Positive | 93/100consistent | 27 | strong_positive | Explore evidence |
| #3 | Diabetes Self-Management Education and Support (DSMES) Programs | Fasting Glucose | 86/100Strong | 81/100Positive | 57/100generally_consistent | 8 | moderate_positive | Explore evidence |
| #4 | Insulin Delivery Systems | CGM Time in Range | 86/100Strong | 72/100Positive | 73/100generally_consistent | 17 | moderate_positive | Explore evidence |
| #5 | Diabetes Self-Management Education and Support (DSMES) Programs | HbA1c | 86/100Strong | 71/100Positive | 68/100generally_consistent | 30 | moderate_positive | Explore evidence |
| #6 | Probiotics and Synbiotics | Fasting Glucose | 85/100Strong | 82/100Positive | 64/100generally_consistent | 11 | moderate_positive | Explore evidence |
| #7 | Probiotics and Synbiotics | HbA1c | 84/100Strong | 88/100Very Positive | 100/100consistent | 12 | strong_positive | Explore evidence |
| #8 | Insulin Delivery Systems | HbA1c | 84/100Strong | 89/100Very Positive | 85/100consistent | 13 | strong_positive | Explore evidence |
| #9 | DPP-4 Inhibitors | CGM Time in Range | 83/100Strong | 75/100Positive | 35/100mixed | 5 | moderate_positive | Explore evidence |
| #10 | GLP-1 Receptor Agonists | Fasting Glucose | 83/100Strong | 69/100Positive | 63/100generally_consistent | 8 | moderate_positive | Explore evidence |
#2 HbA1c
GLP-1 Receptor Agonists → HbA1c
Evidence Intelligence™
- EvidenceScore™
- 87
- Strong
- ImpactScore™
- 93
- Very Positive
- ConsistencyScore™
- 93
- consistent
Supporting studies: Based on 27 studies
Explore evidence#3 Fasting Glucose
Diabetes Self-Management Education and Support (DSMES) Programs → Fasting Glucose
Evidence Intelligence™
- EvidenceScore™
- 86
- Strong
- ImpactScore™
- 81
- Positive
- ConsistencyScore™
- 57
- generally_consistent
Supporting studies: Based on 8 studies
Explore evidence#4 CGM Time in Range
Insulin Delivery Systems → CGM Time in Range
Evidence Intelligence™
- EvidenceScore™
- 86
- Strong
- ImpactScore™
- 72
- Positive
- ConsistencyScore™
- 73
- generally_consistent
Supporting studies: Based on 17 studies
Explore evidence#5 HbA1c
Diabetes Self-Management Education and Support (DSMES) Programs → HbA1c
Evidence Intelligence™
- EvidenceScore™
- 86
- Strong
- ImpactScore™
- 71
- Positive
- ConsistencyScore™
- 68
- generally_consistent
Supporting studies: Based on 30 studies
Explore evidence#6 Fasting Glucose
Probiotics and Synbiotics → Fasting Glucose
Evidence Intelligence™
- EvidenceScore™
- 85
- Strong
- ImpactScore™
- 82
- Positive
- ConsistencyScore™
- 64
- generally_consistent
Supporting studies: Based on 11 studies
Explore evidence#7 HbA1c
Probiotics and Synbiotics → HbA1c
Evidence Intelligence™
- EvidenceScore™
- 84
- Strong
- ImpactScore™
- 88
- Very Positive
- ConsistencyScore™
- 100
- consistent
Supporting studies: Based on 12 studies
Explore evidence#8 HbA1c
Insulin Delivery Systems → HbA1c
Evidence Intelligence™
- EvidenceScore™
- 84
- Strong
- ImpactScore™
- 89
- Very Positive
- ConsistencyScore™
- 85
- consistent
Supporting studies: Based on 13 studies
Explore evidence#9 CGM Time in Range
DPP-4 Inhibitors → CGM Time in Range
Evidence Intelligence™
- EvidenceScore™
- 83
- Strong
- ImpactScore™
- 75
- Positive
- ConsistencyScore™
- 35
- mixed
Supporting studies: Based on 5 studies
Explore evidence#10 Fasting Glucose
GLP-1 Receptor Agonists → Fasting Glucose
Evidence Intelligence™
- EvidenceScore™
- 83
- Strong
- ImpactScore™
- 69
- Positive
- ConsistencyScore™
- 63
- generally_consistent
Supporting studies: Based on 8 studies
Explore evidencePractical Questions
Relationships organized using the Dediabetes Evidence Intelligence™ framework.
Which interventions have the strongest evidence for affecting Glycemic Control?
evidence strengthStrong Evidence
Hybrid closed-loop system, Semaglutide, and Tirzepatide have the strongest available evidence signals for Glycemic Control.
ConsistencyScore™: Results are consistent across studies.
Ranked evidence signals
- 1
Semaglutide
EvidenceScore™ Strong | EvidenceScore™ 87.3 | strong positive | ConsistencyScore™ Consistent | 13 studies
- 2
Tirzepatide
EvidenceScore™ Strong | EvidenceScore™ 84.6 | strong positive | ConsistencyScore™ Consistent | 9 studies
- 3
Hybrid closed-loop system
EvidenceScore™ Strong | EvidenceScore™ 81.0 | strong positive | ConsistencyScore™ Consistent | 8 studies
Why this answer: This answer is based on 29 supporting studies with consistent results and a positive effect signal.
Applicability
Population details were available for 1 of 29 supporting studies: Participants had longstanding T2D (mean 11.2 years) with inadequate glycemic control (mean HbA1c 7.82%) despite stable GLP-1 RA therapy (dulaglutide) for ≥6 months. Baseline characteristics were balanced between....
Which interventions are most often studied for Glycemic Control?
most studiedEmerging Evidence
Hybrid closed-loop system, Insulin therapy, and Semaglutide are among the most studied areas in relation to Glycemic Control.
ConsistencyScore™: Consistency cannot yet be determined from the available evidence.
Evidence caveat: The evidence includes both beneficial and harmful or worsening results.
Ranked evidence signals
- 1
Semaglutide
EvidenceScore™ Strong | EvidenceScore™ 87.3 | strong positive | ConsistencyScore™ Consistent | 15 studies
- 2
Hybrid closed-loop system
EvidenceScore™ Strong | EvidenceScore™ 81.0 | strong positive | ConsistencyScore™ Consistent | 10 studies
- 3
Insulin therapy
EvidenceScore™ Moderate | EvidenceScore™ 69.0 | moderate positive | ConsistencyScore™ Consistent | 6 studies
Why this answer: This answer is cautious because the available studies report mixed findings.
Limitations
- Consistency cannot yet be determined.
- Population details are unavailable.
Where are results mixed or inconsistent for Glycemic Control?
consistency issuesModerate Evidence
Results are mixed or unclear for Acarbose, Behavioral counseling, and Bilberry extract in relation to Glycemic Control.
ConsistencyScore™: Results are mixed and should be interpreted cautiously.
Evidence caveat: The evidence includes both beneficial and harmful or worsening results.
Ranked evidence signals
- 1
Continuous glucose monitoring
EvidenceScore™ Strong | EvidenceScore™ 78.6 | weak negative | ConsistencyScore™ Mixed | 3 studies
- 2
Dipeptidyl peptidase-4 inhibitors
EvidenceScore™ Moderate | EvidenceScore™ 69.0 | strong positive | ConsistencyScore™ Mixed | 2 studies
- 3
DSMES
EvidenceScore™ Moderate | EvidenceScore™ 69.0 | strong positive | ConsistencyScore™ Mixed | 2 studies
Why this answer: This answer is cautious because the available studies report mixed findings.
Applicability
Population details were available for 1 of 48 supporting studies: Adults with poorly controlled type 2 diabetes identified through a commercial insurer.
Which interventions need more research for Glycemic Control?
research gapsEmerging Evidence
Acarbose need more research in relation to Glycemic Control.
ConsistencyScore™: Consistency cannot yet be determined from the available evidence.
Ranked evidence signals
- 1
Acarbose
EvidenceScore™ Emerging | EvidenceScore™ 59.0 | strong positive | ConsistencyScore™ Unclear | 1 study
Why this answer: This answer is based on a single supporting study.
Limitations
- Only one supporting study is available.
- Consistency cannot yet be determined.
- Population details are unavailable.
How does Semaglutide compare with Metformin for Glycemic Control?
compareStrong Evidence
Metformin and Semaglutide have available evidence for Glycemic Control, but the comparison requires review of the underlying studies.
ConsistencyScore™: Results are consistent across studies.
Ranked evidence signals
- 1
Semaglutide
EvidenceScore™ Strong | EvidenceScore™ 87.3 | strong positive | ConsistencyScore™ Consistent | 13 studies
- 2
Metformin
EvidenceScore™ Strong | EvidenceScore™ 85.4 | moderate positive | ConsistencyScore™ Consistent | 7 studies
Why this answer: This answer is based on 18 supporting studies with consistent results and a positive effect signal.
Limitations
- Population details are unavailable.
Interventions Studied for Glycemic Control
Intervention categories most commonly studied for glycemic control outcomes.
Diabetes Self-Management Education and Support
EvidenceScore™ 63/100
Evidence related to diabetes self-management education and support programs in diabetes studies.
65 Studies
GLP-1 Receptor Agonists
EvidenceScore™ 63/100
Evidence related to GLP-1 receptor agonist therapies in diabetes studies.
60 Studies
Insulin Therapies
EvidenceScore™ 63/100
Evidence related to insulin therapies in diabetes studies.
30 Studies
Probiotics and Synbiotics
EvidenceScore™ 63/100
Evidence related to probiotic and synbiotic interventions in diabetes studies.
25 Studies
Metformin
EvidenceScore™ 62/100
Evidence related to metformin therapies in diabetes studies.
26 Studies
DPP-4 Inhibitors
EvidenceScore™ 62/100
Evidence related to DPP-4 inhibitor therapies in diabetes studies.
26 Studies
Latest Research
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Evidence Landscape
Evidence landscape
Each bubble represents an evidence relationship. Position shows effectiveness and EvidenceScoreâ„¢; size reflects study volume.
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- Moderate evidence
- Limited evidence
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