LivingGLP1
Network meta-analysis

HbA1c change

Type 2 diabetes (adults); background therapy: one or more non insulin glucose lowering drugs

weeks 20 to 36 (target week 26)Treatment policyEach dose separatelyMean difference
8
Randomized trials
12
Treatments
6,629
Participants
25
Trial arms

In plain language

Across 8 trials with 6,629 participants, 9 of 11 treatments had a clearly better result than placebo on HbA1c change, and for 2 the evidence could not tell them apart from placebo. The most favorable estimate was for Semaglutide 1.0 mg subcutaneous once weekly: mean difference -1.15 percentage points (95% credible interval -1.66 to -0.63).

Lower values favor the treatment. "Clearly" means the 95% credible interval excludes no difference. These are averages across trials; they do not say how any one person will respond. Not medical advice.

Network of trials

Each circle is a treatment; each line joins treatments that were randomized against each other in at least one trial.
DULA_SC_0p75MG_QWDULA_SC_1p5MG_QWEFSUBA_SC_3MG_QWLIRA_SC_1p8MG_QDPLACEBOSEMA_PO_14MG_QDSEMA_PO_3MG_QDSEMA_PO_7MG_QDSEMA_SC_0p5MG_QWSEMA_SC_1p0MG_QWSITAGLIPTINVISEPE_SC_150UG_QW
Node area shows participants; line width shows trials comparing two treatments directly. Blue: GLP-1 receptor agonist containing treatments; grey: comparators. Hover over or tab to a node or line for details.

Effects compared with Placebo

Mean difference in percentage points. Lower values favor the treatment.
-1.5-1-0.50← favors treatmentfavors reference →Semaglutide 1.0 mg subcutaneous …Efsubaglutide alfa 3 mg injectio…Semaglutide 14 mg oral once dail…Semaglutide 0.5 mg subcutaneous …Liraglutide 1.8 mg subcutaneous …Semaglutide 7 mg oral once daily…Dulaglutide 1.5 mg subcutaneous …Dulaglutide 0.75 mg subcutaneous…Visepegenatide 150 µg injection …SitagliptinSemaglutide 3 mg oral once daily…
Versus Placebo. Blue: Bayesian random effects posterior median with 95% credible interval (thick) and 95% prediction interval (dashed). Amber diamond: frequentist estimate with 95% confidence interval. Hover over or tab to a row for its values.
Effects of each treatment versus Placebo
TreatmentBayesian MD (95% CrI)95% prediction intervalFrequentist MD (95% CI)Verdict
Semaglutide 1.0 mg subcutaneous once weekly
SEMA_SC_1p0MG_QW
-1.15 (-1.66 to -0.63)-1.74 to -0.52-1.18 (-1.61 to -0.74)Better
Efsubaglutide alfa 3 mg injection once weekly
EFSUBA_SC_3MG_QW
-1.05 (-1.49 to -0.60)-1.58 to -0.50-1.06 (-1.46 to -0.66)Better
Semaglutide 14 mg oral once daily (original tablet)
SEMA_PO_14MG_QD
-1.02 (-1.34 to -0.69)-1.45 to -0.56-1.04 (-1.32 to -0.76)Better
Semaglutide 0.5 mg subcutaneous once weekly
SEMA_SC_0p5MG_QW
-0.95 (-1.46 to -0.41)-1.54 to -0.31-0.98 (-1.42 to -0.54)Better
Liraglutide 1.8 mg subcutaneous once daily
LIRA_SC_1p8MG_QD
-0.91 (-1.29 to -0.50)-1.39 to -0.38-0.92 (-1.27 to -0.57)Better
Semaglutide 7 mg oral once daily (original tablet)
SEMA_PO_7MG_QD
-0.80 (-1.16 to -0.43)-1.27 to -0.29-0.82 (-1.13 to -0.51)Better
Dulaglutide 1.5 mg subcutaneous once weekly
DULA_SC_1p5MG_QW
-0.78 (-1.10 to -0.43)-1.23 to -0.30-0.79 (-1.08 to -0.50)Better
Dulaglutide 0.75 mg subcutaneous once weekly
DULA_SC_0p75MG_QW
-0.63 (-0.92 to -0.32)-1.05 to -0.17-0.64 (-0.90 to -0.39)Better
Visepegenatide 150 µg injection once weekly
VISEPE_SC_150UG_QW
-0.57 (-0.90 to -0.23)-1.04 to -0.11-0.57 (-0.85 to -0.29)Better
Sitagliptin
SITAGLIPTIN
-0.36 (-0.73 to 0.03)-0.82 to 0.15-0.38 (-0.70 to -0.05)Unclear
Semaglutide 3 mg oral once daily (original tablet)
SEMA_PO_3MG_QD
-0.28 (-0.64 to 0.09)-0.75 to 0.24-0.30 (-0.61 to 0.01)Unclear

Ranking

How likely each treatment is to be among the best. Rankings ignore the size of differences and their certainty, so read them with the effects above.

League table

Every treatment against every other: mean difference of the row treatment versus the column treatment, posterior median and 95% credible interval. Green: row clearly better; red: row clearly worse.
Every treatment in a row compared with every treatment in a column
Row versus columnPLACEBOSEMA_SC_1p0MG_QWEFSUBA_SC_3MG_QWSEMA_PO_14MG_QDSEMA_SC_0p5MG_QWLIRA_SC_1p8MG_QDSEMA_PO_7MG_QDDULA_SC_1p5MG_QWDULA_SC_0p75MG_QWVISEPE_SC_150UG_QWSITAGLIPTINSEMA_PO_3MG_QD
PLACEBOPLACEBO1.15
0.63 to 1.66
1.05
0.60 to 1.49
1.02
0.69 to 1.34
0.95
0.41 to 1.46
0.91
0.50 to 1.29
0.80
0.43 to 1.16
0.78
0.43 to 1.10
0.63
0.32 to 0.92
0.57
0.23 to 0.90
0.36
-0.03 to 0.73
0.28
-0.09 to 0.64
SEMA_SC_1p0MG_QW-1.15
-1.66 to -0.63
SEMA_SC_1p0MG_QW-0.10
-0.78 to 0.59
-0.13
-0.54 to 0.30
-0.20
-0.55 to 0.16
-0.24
-0.80 to 0.33
-0.35
-0.74 to 0.07
-0.37
-0.93 to 0.17
-0.52
-1.00 to -0.03
-0.59
-1.19 to 0.04
-0.80
-1.14 to -0.45
-0.87
-1.27 to -0.44
EFSUBA_SC_3MG_QW-1.05
-1.49 to -0.60
0.10
-0.59 to 0.78
EFSUBA_SC_3MG_QW-0.03
-0.59 to 0.51
-0.10
-0.81 to 0.56
-0.15
-0.73 to 0.44
-0.25
-0.85 to 0.32
-0.27
-0.84 to 0.27
-0.42
-0.97 to 0.10
-0.49
-1.05 to 0.07
-0.69
-1.31 to -0.11
-0.77
-1.36 to -0.21
SEMA_PO_14MG_QD-1.02
-1.34 to -0.69
0.13
-0.30 to 0.54
0.03
-0.51 to 0.59
SEMA_PO_14MG_QD-0.07
-0.50 to 0.33
-0.12
-0.50 to 0.27
-0.22
-0.42 to -0.03
-0.24
-0.64 to 0.17
-0.39
-0.69 to -0.10
-0.45
-0.91 to 0.01
-0.66
-0.89 to -0.45
-0.74
-0.95 to -0.54
SEMA_SC_0p5MG_QW-0.95
-1.46 to -0.41
0.20
-0.16 to 0.55
0.10
-0.56 to 0.81
0.07
-0.33 to 0.50
SEMA_SC_0p5MG_QW-0.05
-0.61 to 0.53
-0.16
-0.55 to 0.28
-0.18
-0.74 to 0.40
-0.32
-0.80 to 0.19
-0.38
-0.99 to 0.26
-0.59
-0.93 to -0.23
-0.67
-1.09 to -0.23
LIRA_SC_1p8MG_QD-0.91
-1.29 to -0.50
0.24
-0.33 to 0.80
0.15
-0.44 to 0.73
0.12
-0.27 to 0.50
0.05
-0.53 to 0.61
LIRA_SC_1p8MG_QD-0.10
-0.53 to 0.33
-0.12
-0.62 to 0.37
-0.27
-0.72 to 0.17
-0.34
-0.83 to 0.17
-0.55
-1.00 to -0.11
-0.62
-1.05 to -0.20
SEMA_PO_7MG_QD-0.80
-1.16 to -0.43
0.35
-0.07 to 0.74
0.25
-0.32 to 0.85
0.22
0.03 to 0.42
0.16
-0.28 to 0.55
0.10
-0.33 to 0.53
SEMA_PO_7MG_QD-0.02
-0.46 to 0.42
-0.17
-0.48 to 0.15
-0.24
-0.71 to 0.27
-0.44
-0.68 to -0.23
-0.52
-0.73 to -0.31
DULA_SC_1p5MG_QW-0.78
-1.10 to -0.43
0.37
-0.17 to 0.93
0.27
-0.27 to 0.84
0.24
-0.17 to 0.64
0.18
-0.40 to 0.74
0.12
-0.37 to 0.62
0.02
-0.42 to 0.46
DULA_SC_1p5MG_QW-0.14
-0.49 to 0.20
-0.21
-0.70 to 0.29
-0.42
-0.87 to 0.02
-0.49
-0.93 to -0.06
DULA_SC_0p75MG_QW-0.63
-0.92 to -0.32
0.52
0.03 to 1.00
0.42
-0.10 to 0.97
0.39
0.10 to 0.69
0.32
-0.19 to 0.80
0.27
-0.17 to 0.72
0.17
-0.15 to 0.48
0.14
-0.20 to 0.49
DULA_SC_0p75MG_QW-0.06
-0.52 to 0.39
-0.28
-0.63 to 0.08
-0.35
-0.67 to -0.03
VISEPE_SC_150UG_QW-0.57
-0.90 to -0.23
0.59
-0.04 to 1.19
0.49
-0.07 to 1.05
0.45
-0.01 to 0.91
0.38
-0.26 to 0.99
0.34
-0.17 to 0.83
0.24
-0.27 to 0.71
0.21
-0.29 to 0.70
0.06
-0.39 to 0.52
VISEPE_SC_150UG_QW-0.21
-0.73 to 0.29
-0.28
-0.79 to 0.19
SITAGLIPTIN-0.36
-0.73 to 0.03
0.80
0.45 to 1.14
0.69
0.11 to 1.31
0.66
0.45 to 0.89
0.59
0.23 to 0.93
0.55
0.11 to 1.00
0.44
0.23 to 0.68
0.42
-0.02 to 0.87
0.28
-0.08 to 0.63
0.21
-0.29 to 0.73
SITAGLIPTIN-0.08
-0.30 to 0.16
SEMA_PO_3MG_QD-0.28
-0.64 to 0.09
0.87
0.44 to 1.27
0.77
0.21 to 1.36
0.74
0.54 to 0.95
0.67
0.23 to 1.09
0.62
0.20 to 1.05
0.52
0.31 to 0.73
0.49
0.06 to 0.93
0.35
0.03 to 0.67
0.28
-0.19 to 0.79
0.08
-0.16 to 0.30
SEMA_PO_3MG_QD

Heterogeneity, fit and convergence

Bayesian random effects (primary)

Heterogeneity (tau)
0.128 (95% CrI 0.038 to 0.306)
Residual deviance
24.6 for 25 data points
DIC
47.6 (pD 23.1)
Largest R-hat
1.001
Smallest ESS
bulk 1,734, tail 2,633
Divergent transitions
0
Convergence
All criteria met
Priors
PR01 N(0, 5^2); PR03 N(0, 2.5^2); PR07 half normal(0, 0.5^2) on tau

Frequentist check (netmeta)

Method
inverse variance, REML, MD
Tau
0.125
I squared
63%
Q (total)
16.14 on 6 df, P = 0.013
Q (between designs)
1.94, P = 0.585

Inconsistency

Do trials comparing two treatments directly agree with the indirect evidence through other treatments?

No comparison here has both direct and indirect evidence, so inconsistency cannot be checked by node splitting; the between designs Q above is the global check.

Small study effects

A comparison adjusted funnel plot: each point is one trial comparison, centered on its own network estimate. Asymmetry can signal that small trials with unfavorable results are missing.

Fewer than ten trial comparisons, too few to judge funnel plot asymmetry.

Baseline characteristics of the trials

The baseline value of each effect modifier or prognostic factor that applies here, per trial: mean or percent over arms, weighted by the number randomized. A note under a value names a stand in (a median for a mean, 100 minus the male share, Asian subgroup rows, an all Asian site list); "not reported" means no source of the trial prints it.
Baseline effect modifiers and prognostic factors per trial
TrialBaseline HbA1c (percent)
effect modifier, prognostic factor; 8 of 8
Background glucose lowering therapy (stratum S0 to S4)
effect modifier, prognostic factor; 8 of 8
Diabetes duration (years)
effect modifier, prognostic factor; 7 of 8
Asian ancestry or region (percent Asian)
effect modifier, prognostic factor; 7 of 8
Age (years)
prognostic factor; 8 of 8
Treatment duration (weeks)
effect modifier; 8 of 8
PIONEER 4
S000133
7.98S17.613.456.252
PIONEER 10
S000234
8.31S19.3610058.4352
AWARD-10
S000305
8.04S19.38not reported57.2724
PIONEER 12
S000522
8.12S15.6375.2253.2526
NCT04504396
S001230
8.47S15.14100
region: all sites in Asia
53.224
SUSTAIN
S001311
8.1S16.3785.0353.0330
NCT04998032
S002121
8.66S141.93100
region: all sites in Asia
53.7124
PIONEER 3
S002267
8.33S1not reported13.1457.7578

Comparability of the trials

Checked across designs (the set of treatments each trial compares) for eligibility, outcome definition and assessment, and the baseline factors above. Flags point to possible intransitivity; notes describe variation that is not tied to design.
  • FlagBaseline, Baseline HbA1c: design means range from 8.0 (LIRA_SC_1p8MG_QD vs PLACEBO vs SEMA_PO_14MG_QD) to 8.7 (EFSUBA_SC_3MG_QW vs PLACEBO) percent; threshold 0.5
  • FlagBaseline, Diabetes duration: design means range from 5.1 (PLACEBO vs VISEPE_SC_150UG_QW) to 41.9 (EFSUBA_SC_3MG_QW vs PLACEBO) years; threshold 3
  • FlagBaseline, Asian ancestry or region: design means range from 13.4 (LIRA_SC_1p8MG_QD vs PLACEBO vs SEMA_PO_14MG_QD) to 100.0 (DULA_SC_0p75MG_QW vs SEMA_PO_14MG_QD vs SEMA_PO_3MG_QD vs SEMA_PO_7MG_QD) percent Asian; threshold 30
  • FlagBaseline, Treatment duration: design means range from 24.0 (DULA_SC_0p75MG_QW vs DULA_SC_1p5MG_QW vs PLACEBO) to 52.0 (DULA_SC_0p75MG_QW vs SEMA_PO_14MG_QD vs SEMA_PO_3MG_QD vs SEMA_PO_7MG_QD) weeks; threshold 26
  • NoteOutcome assessment, time point: selected time points span 24 to 30 weeks
  • NoteOutcome assessment, analysis set: mixed: full_analysis 6, modified_itt 2
  • NoteOutcome assessment, intercurrent events (discontinuation): mixed: hypothetical 4, not stated 2, treatment_policy 2
  • NoteOutcome assessment, intercurrent events (rescue): mixed: hypothetical 5, not stated 1, treatment_policy 2
  • NoteRisk of bias, blinding: mixed: double_blind 7, single_blind 1
Comparability items per trial
Trialtime weeksanalysis setdefinitioninstrumentadjudicatedproportion methodintercurrent events (discontinuation)intercurrent events (rescue)blindingfundingstart yearEligibility
PIONEER 426full_analysisnot statednot statednot statednot statedtreatment_policytreatment_policydouble_blindindustry2016Age 18 or older; T2D on metformin with or without SGLT2i; HbA1c 7.0 to 9.5 percent; eGFR 60 or more
PIONEER 1026full_analysisnot statednot statednot statednot statedtreatment_policytreatment_policysingle_blindindustry2017Japanese adults 20 or older; T2D; HbA1c 7.0 to 10.5 percent on one oral glucose lowering drug
AWARD-1024modified_ittnot statednot statednot statednot statednot statedhypotheticaldouble_blindindustry2015T2D; HbA1c 7.0 to 9.5 percent; BMI 45 or lower; SGLT2i with or without metformin
PIONEER 1226full_analysisnot statednot statednot statednot statedhypotheticalhypotheticaldouble_blindindustry2019adults with type 2 diabetes on metformin, HbA1c 7.0 to 10.5 percent
NCT0450439624full_analysisnot statednot statednot statednot statedhypotheticalhypotheticaldouble_blindindustry2020age 18 to 75; HbA1c 7.0 to 10.5 percent; BMI 40 or lower; eGFR 60 or higher; metformin monotherapy at least 1000 mg
SUSTAIN30full_analysisnot statednot statednot statednot statedhypotheticalhypotheticaldouble_blindindustry2017Adults 18 or older, HbA1c 7.0 to 10.5 percent on metformin monotherapy, eGFR 60 or more
NCT0499803224modified_ittnot statednot statednot statednot statednot statednot stateddouble_blindindustry2021age 18 to 75; metformin monotherapy; HbA1c 7.5 to 10.5 at randomization; BMI 18.5 to 40; eGFR 60 or higher
PIONEER 326full_analysisnot statednot statednot statednot statedhypotheticalhypotheticaldouble_blindindustry2016adults with T2D; HbA1c 7.0 to 10.5 percent; metformin with or without sulfonylurea

Trial data

What each trial contributes. Arm rows give the arm value with its standard error, or events over participants; contrast rows give the mean difference on the analysis scale against the trial's first row. Flags mark converted, combined or approximated inputs.
Trial data entering this analysis
TrialArmTreatmentWeekDataValueSEEvents / NFlagsSource
PIONEER 4A1SEMA_PO_14MG_QD26arm, change-1.2000.100285R0015836:Results
PIONEER 4A2LIRA_SC_1p8MG_QD26arm, change-1.1000.100284R0015836:Results
PIONEER 4A3PLACEBO26arm, change-0.2000.100142R0015836:Results
PIONEER 10A1SEMA_PO_3MG_QD26arm, change-1.1000.100131R0018421:Figure 2C
PIONEER 10A2SEMA_PO_7MG_QD26arm, change-1.7000.100132R0018421:Figure 2C
PIONEER 10A3SEMA_PO_14MG_QD26arm, change-2.0000.100130R0018421:Figure 2C
PIONEER 10A4DULA_SC_0p75MG_QW26arm, change-1.5000.10065R0018421:Figure 2C
AWARD-10A1DULA_SC_1p5MG_QW24arm, change-1.3400.064132registry:outcomes
AWARD-10A2DULA_SC_0p75MG_QW24arm, change-1.2100.064134registry:outcomes
AWARD-10A3PLACEBO24arm, change-0.5400.064133registry:outcomes
PIONEER 12A1SEMA_PO_3MG_QD26arm, change-0.8000.054344registry:outcomes
PIONEER 12A2SEMA_PO_7MG_QD26arm, change-1.3000.054340registry:outcomes
PIONEER 12A3SEMA_PO_14MG_QD26arm, change-1.5000.055332registry:outcomes
PIONEER 12A4SITAGLIPTIN26arm, change-0.7000.053350registry:outcomes
NCT04504396A1VISEPE_SC_150UG_QW24arm, change-1.2500.048310R0009432:Table 2
NCT04504396A2PLACEBO24arm, change-0.6800.048310R0009432:Table 2
SUSTAINA1SEMA_SC_0p5MG_QW30arm, change-1.5000.065288registry:outcomes
SUSTAINA2SEMA_SC_1p0MG_QW30arm, change-1.7000.059290registry:outcomes
SUSTAINA3SITAGLIPTIN30arm, change-0.9000.053290registry:outcomes
NCT04998032A1EFSUBA_SC_3MG_QW24arm, change-1.8000.107171R0006975:Table 2
NCT04998032A2PLACEBO24arm, change-0.7400.122173R0006975:Table 2
PIONEER 3A1SEMA_PO_3MG_QD26arm, change-0.6000.046466registry:outcomes
PIONEER 3A2SEMA_PO_7MG_QD26arm, change-1.1000.051465registry:outcomes
PIONEER 3A3SEMA_PO_14MG_QD26arm, change-1.3000.046465registry:outcomes
PIONEER 3A4SITAGLIPTIN26arm, change-0.8000.042467registry:outcomes

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