Trial reportDiabetologia2014
Estimates of insulin sensitivity from the intravenous-glucose-modified-clamp test depend on suppression of lipolysis in type 2 diabetes: a randomised controlled trial.
Trial report in Diabetologia, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT01397279 (Assessment of Liver Glucose Metabolism in Diabetic Subjects), which is not on this map. Cited by 5 papers, 1 of them a synthesis that pooled it.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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.
Assessment of Liver Glucose Metabolism in Diabetic Subjects
Who cites it
5 citing papers in PubMed, 1 synthesis or guideline pooled it, 17 citations in OpenAlex.
- Are Individuals With Type 2 Diabetes Metabolically Inflexible? A Systematic Review and Meta-Analysis.Endocrinology, diabetes & metabolism · 2025Pooled it
- Low-energy diets differing in fibre, red meat and coffee intake equally improve insulin sensitivity in type 2 diabetes: a randomised feasibility trial.Diabetologia · 2015Trial
- Intramyocellular Triglyceride Content During the Early Course of Type 1 and Type 2 Diabetes.Diabetes · 2023Article
- Reduced Muscle Strength Is Associated With Insulin Resistance in Type 2 Diabetes Patients With Osteoarthritis.The Journal of clinical endocrinology and metabolism · 2021Article
- Cohort profile: the German Diabetes Study (GDS).Cardiovascular diabetology · 2016Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
8 authors at 4 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
aims/hypothesisThe combined IVGTT-hyperinsulinaemic-euglycaemic clamp (Botnia clamp) allows the assessment of insulin secretion and sensitivity in one experiment. It remains unclear whether this clamp yields results comparable with those of the standard hyperinsulinaemic-euglycaemic clamp (SHEC) in diabetes patients. We hypothesised that the IVGTT induces responses affecting insulin sensitivity assessment.
methodsOf 22 randomised diet- or metformin-treated patients with well-controlled type 2 diabetes, 19 randomly underwent a Botnia clamp and an SHEC, spaced by 2 weeks, in one clinical research centre in a crossover study. The main outcomes were whole-body and hepatic insulin sensitivity as measured by the clamp and [6,6-(2)H2]glucose. Substrate utilisation was assessed from indirect calorimetry and beta cell function from insulin dynamics during IVGTT.
resultsThe values of whole-body insulin sensitivity obtained from Botnia clamp and SHEC were correlated (r = 0.87, p < 0.001), but also revealed intra-individual variations. Hepatic insulin sensitivity did not differ between experiments during the clamp, but differed after IVGTT. The contribution of glucose oxidation to glucose disposal increased by 2.2 ± 0.3 and 1.2 ± 0.4 mg kg fat-free mass (FFM)(-1) min(-1) (Botnia and SHEC, p < 0.05), whereas lipid oxidation decreased by 0.8 ± 0.1 and 0.4 ± 0.1 mg kg FFM(-1) min(-1) (p < 0.05) from baseline. Differences in NEFA (r = -0.60, p < 0.01), but not C-peptide (r = -0.16, p = 0.52) or hepatic insulin sensitivity between IVGTT and placebo before the clamps correlated with individual variations of insulin sensitivity. CONCLUSIONS/
interpretationThe Botnia clamp provides similar estimates of insulin sensitivity as SHEC in patients with type 2 diabetes, but changes in NEFA during IVGTT may affect insulin sensitivity and thereby the discrimination between insulin-sensitive and insulin-resistant individuals.
trial registrationClinicalTrials.gov NCT01397279
fundingThe study was funded by the Ministry of Science and Research of the State of North Rhine-Westphalia and the German Federal Ministry of Health, and supported in part by grants from the Federal Ministry for Research to the Centers for Diabetes Research, Helmholtz Alliance Imaging and Curing Environmental Metabolic Diseases and the Schmutzler-Stiftung.
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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 OpenQuestion graph.