Trial reportDiabetic medicine : a journal of the British Diabetic Association2011

Liraglutide improves treatment satisfaction in people with Type 2 diabetes compared with sitagliptin, each as an add on to metformin.

M Davies, R Pratley, M Hammer, A B Thomsen, R Cuddihy

Registry-linked trialAbstract readRandomized Controlled Trial
PubMed Publisher
In one paragraph

Trial report in Diabetic medicine : a journal of the British Diabetic Association, 2011. 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. It reports registered trial NCT00700817. Cited by 24 papers, 2 of them syntheses that pooled it.

1number the graph read from it
0cells of the map it votes in
24citing papers in PubMed, 2 pooled it
5.5field-weighted citation impact, top 3% of its field
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

Glycemic controlcomparator not stated · t2dfeeds one cell of the map
Δ -0.88P < 0.0001
Patients perceived themselves to be hyperglycaemic significantly less frequently with liraglutide 1.8 mg (difference = -0.88; P < 0.0001) and 1.2 mg ( -0.49; P = 0.01).

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.

GLP-1 receptor agonists×glycemic control

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

40 readable studies in this cell: 96 favour the treatment, 17 find no difference, 10 favour the comparator.

Belief with this paper
0.91replicated · 68 families support, 7 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 trial, registry resultNCT00700817 · 665 enrolled · 2008
Δ -0.60-0.77 to -0.43
NCT017204463,297 enrolled · 2013
Δ -0.66-0.80 to -0.52
NCT036893742,274 enrolled · 2018
Δ -0.29-0.38 to -0.20
NCT039879191,879 enrolled · 2019
Δ -0.51-0.64 to -0.38
NCT026078651,864 enrolled · 2016
Δ -0.50-0.60 to -0.40
NCT013360231,663 enrolled · 2011
Treatment contrast -0.64-0.75 to -0.53
NCT040178321,441 enrolled · 2019
Δ -0.20-0.30 to -0.10
NCT018365231,398 enrolled · 2013
Δ -0.20-0.32 to -0.07
NCT019301881,231 enrolled · 2013
Δ -1.06-1.21 to -0.91
NCT007344741,202 enrolled · 2008
Δ -0.71-0.87 to -0.55
NCT020581471,170 enrolled · 2014
Δ -0.29-0.38 to -0.19
NCT003184611,091 enrolled · 2006
Δ -1.09-1.30 to -0.88
NCT021289321,089 enrolled · 2014
Δ -0.81-0.96 to -0.67
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.

NCT00700817 phase3completed

The Effect of Liraglutide Compared to Sitagliptin, Both in Combination With Metformin in Subjects With Type 2 Diabetes. A 26-week, Randomised, Open-label, Active Comparator, Three-armed, Parallel-group, Multi-centre, Multinational Trial With a 52-week Extension

Ran2008Enrolled665Registered outcomes75Posted comparisons6ConditionsDiabetes, Diabetes Mellitus, Type 2Armsliraglutide, Metformin, Sitagliptin
Open the trial in the graph
5 · Its place in the literature

Who cites it

24 citing papers in PubMed, 2 syntheses or guidelines pooled it, 61 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Trial
  4. Trial
  5. Trial
  6. GLP-1 Receptor Agonists for Type 2 Diabetes and Their Role in Primary Care: An Australian Perspective.Diabetes therapy : research, treatment and education of diabetes and related disorders · 2019
    Review
  7. Article
  8. Article
  9. Review
  10. Review
  11. Review
  12. Review
  13. Real-world clinical and economic outcomes of liraglutide versus sitagliptin in patients with type 2 diabetes mellitus in the United States.Diabetes therapy : research, treatment and education of diabetes and related disorders · 2014
    Article
  14. Review
  15. Review
  16. Comparative effectiveness of liraglutide in the treatment of type 2 diabetes.Diabetes, metabolic syndrome and obesity : targets and therapy · 2014
    Review
  17. Article
  18. A retrospective, case-note survey of type 2 diabetes patients prescribed incretin-based therapies in clinical practice.Diabetes therapy : research, treatment and education of diabetes and related disorders · 2013
    Article
  19. Review
  20. Article
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

5 authors at 3 institutions in 3 countries.

M DaviesUniversity of Leicester, Leicester, UK. melanie.davies@uhl-tr.nhs.uk
R Pratley
M Hammer
A B Thomsen
R Cuddihy
Novo Nordisk (Denmark) · DKUniversity Hospitals of Leicester NHS Trust · GBUniversity of Vermont · US

Funding

No grant is acknowledged in the PubMed record.

8 · The paper itself

Abstract

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

aimsPatient-reported outcomes from clinical trials offer insight into the impact of disease on health-related quality of life, including treatment satisfaction. This patient-reported outcomes evaluation was a substudy of a 26-week randomized, open-label trial comparing the once-daily injectable human GLP-1 analogue liraglutide with once-daily oral sitagliptin, both added to metformin. The patient reported outcomes substudy aimed to evaluate treatment satisfaction using the Diabetes Treatment Satisfaction Questionnaire (DTSQ) at baseline and 26 weeks.

methodsIn the main 26-week randomized, open-label study (n =658), liraglutide, 1.2 or 1.8 mg, injected with a pen, led to greater HbA1c reduction than oral sitagliptin, 100 mg once daily, both added to metformin = 1500 mg daily: mean HbA1c reduction was 1.5, 1.2 and 0.9% (7, 10 and 14 mmol/mol) for liraglutide 1.8 mg, 1.2 mg and sitagliptin, respectively (P < 0.0001 for both liraglutide doses vs. sitagliptin) and liraglutide patients lost more weight (3 vs.1 kg; P < 0.0001). In this patient-reported outcomes substudy (liraglutide 1.8 mg, n = 171; 1.2 mg, n = 164; sitagliptin, n = 170) DTSQ scores were analyzed by ANCOVA with treatment and country as fixed effects and baseline value as covariate.

resultsOverall treatment satisfaction, calculated by adding satisfaction scores for `current treatment', `convenience', `flexibility', `understanding', `recommend', and `continue', improved in all groups at 26 weeks; greater improvement with liraglutide (4.35 and 3.51 vs. 2.96; P = 0.03 for liraglutide 1.8 mg vs. sitagliptin) may reflect greater HbA1c reduction and weight loss. Patients perceived themselves to be hyperglycaemic significantly less frequently with liraglutide 1.8 mg (difference = -0.88; P < 0.0001) and 1.2 mg ( -0.49; P = 0.01). Perceived frequency of hypoglycaemia was similar across all groups.

conclusionsInjectable liraglutide may lead to greater treatment satisfaction than oral sitagliptin, potentially by facilitating greater improvement in glycaemic control, weight loss and/ or perception of greater treatment efficacy.

Indexed as

Patient SatisfactionDiabetes Mellitus, Type 2Drug Therapy, CombinationFemaleGlucagon-Like Peptide 1Glycated HemoglobinHumansHypoglycemic AgentsLiraglutideMaleMetforminPyrazinesQuality of LifeSitagliptin PhosphateSurveys and QuestionnairesTreatment OutcomeGlucagon-Like Peptide 1Glycated HemoglobinHypoglycemic AgentsLiraglutideMetforminPyrazinesSitagliptin PhosphateTriazoles

Identifiers

PMID21309842
OpenAlexW2043037892

What Socratic holds

Texttitle and abstract
Read underepoch 390

Registered trials

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.