Evidence map›Paper›PMID 29723161›Full record

Trial reportThe Journal of clinical investigation2018

Metreleptin-mediated improvements in insulin sensitivity are independent of food intake in humans with lipodystrophy.

Rebecca J Brown, Areli Valencia, Megan Startzell, Elaine Cochran, Peter J Walter, H Martin Garraffo, Hongyi Cai, Ahmed M Gharib, Ronald Ouwerkerk, Amber B Courville and 6 more

Open access · bronzeAbstract readClinical Trial
In one paragraph

Trial report in The Journal of clinical investigation, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 55 papers.

0numbers the graph read from it
0cells of the map it votes in
55citing papers in PubMed
6.0field-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.

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.

2 · 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.

3 · Its place in the literature

Who cites it

55 citing papers in PubMed, 96 citations in OpenAlex.

  1. Trial
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  7. Thyroid Hormone Effects on Glucose Disposal in Patients With Insulin Receptor Mutations.The Journal of clinical endocrinology and metabolism · 2020
    Trial
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  9. Review
  10. Article
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  12. Central leptin pathways in metabolic homeostasis.Clinical science (London, England : 1979) · 2025
    Review
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  14. Article
  15. Article
  16. Observational
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

16 authors at 6 institutions in 2 countries.

Rebecca J BrownDiabetes, Endocrinology, and Obesity Branch (DEOB), National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK), NIH, Bethesda, Maryland, USA.
Areli ValenciaDiabetes, Endocrinology, and Obesity Branch (DEOB), National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK), NIH, Bethesda, Maryland, USA.
Megan StartzellDiabetes, Endocrinology, and Obesity Branch (DEOB), National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK), NIH, Bethesda, Maryland, USA.
Elaine CochranDiabetes, Endocrinology, and Obesity Branch (DEOB), National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK), NIH, Bethesda, Maryland, USA.
Peter J WalterClinical Mass Spectrometry Core and.
H Martin GarraffoClinical Mass Spectrometry Core and.
Hongyi CaiClinical Mass Spectrometry Core and.
Ahmed M GharibBiomedical and Metabolic Imaging Branch, NIDDK, NIH, Bethesda, Maryland, USA.
Ronald OuwerkerkBiomedical and Metabolic Imaging Branch, NIDDK, NIH, Bethesda, Maryland, USA.
Amber B CourvilleNutrition Department, Clinical Center, NIH, Bethesda, Maryland, USA.
Shanna BernsteinNutrition Department, Clinical Center, NIH, Bethesda, Maryland, USA.
Robert J BrychtaDiabetes, Endocrinology, and Obesity Branch (DEOB), National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK), NIH, Bethesda, Maryland, USA.
Kong Y ChenDiabetes, Endocrinology, and Obesity Branch (DEOB), National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK), NIH, Bethesda, Maryland, USA.
Mary WalterClinical Core Laboratory and.
Sungyoung AuhOffice of the Clinical Director, NIDDK, NIH, Bethesda, Maryland, USA.
Phillip GordenDiabetes, Endocrinology, and Obesity Branch (DEOB), National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK), NIH, Bethesda, Maryland, USA.
National Institute of Diabetes and Digestive and Kidney Diseases · USIONICS Mass Spectrometry (Canada) · CANational Institutes of Health · USNational Institutes of Health Clinical Center · USCore Laboratories (United States) · USOffice of the Director · US

Funding

Advanced Non Invasive Vascular Imaging MethodsZIADK075083 · NIDDK · NATIONAL INSTITUTE OF DIABETES AND DIGESTIVE AND KIDNEY DISEASES · PI GHARIB, AHMED · 2013 to 2025
$34.7M
Clinical Stable Isotope Research & SupportZICDK075039 · NIDDK · NATIONAL INSTITUTE OF DIABETES AND DIGESTIVE AND KIDNEY DISEASES · PI WALTER, PETER · 2009 to 2025
$23.2M
Clinical Research and Assay SupportZICDK071006 · NIDDK · NATIONAL INSTITUTE OF DIABETES AND DIGESTIVE AND KIDNEY DISEASES · PI WALTER, MARY · 2009 to 2025
$20.6M
Development of obesity and metabolic clinical research programsZIADK071014 · NIDDK · NATIONAL INSTITUTE OF DIABETES AND DIGESTIVE AND KIDNEY DISEASES · PI CHEN, KONG · 2009 to 2025
$12.3M
Metabolic Research Core: energy balance and obesity studiesZICDK071013 · NIDDK · NATIONAL INSTITUTE OF DIABETES AND DIGESTIVE AND KIDNEY DISEASES · PI CHEN, KONG · 2009 to 2025
$12.3M
Effects of leptin in lipodystrophy independent of food intakeZIADK075084 · NIDDK · NATIONAL INSTITUTE OF DIABETES AND DIGESTIVE AND KIDNEY DISEASES · PI BROWN, REBECCA · 2013 to 2023
$2.5M
6 · The paper itself

Abstract

backgroundRecombinant leptin (metreleptin) ameliorates hyperphagia and metabolic abnormalities in leptin-deficient humans with lipodystrophy. We aimed to determine whether metreleptin improves glucose and lipid metabolism in humans when food intake is held constant.

methodsPatients with lipodystrophy were hospitalized for 19 days, with food intake held constant by a controlled diet in an inpatient metabolic ward. In a nonrandomized, crossover design, patients previously treated with metreleptin (n = 8) were continued on metreleptin for 5 days and then taken off metreleptin for the next 14 days (withdrawal cohort). This order was reversed in metreleptin-naive patients (n = 14), who were reevaluated after 6 months of metreleptin treatment on an ad libitum diet (initiation cohort). Outcome measurements included insulin sensitivity by hyperinsulinemic-euglycemic clamp, fasting glucose and triglyceride levels, lipolysis measured using isotopic tracers, and liver fat by magnetic resonance spectroscopy.

resultsWith food intake constant, peripheral insulin sensitivity decreased by 41% after stopping metreleptin for 14 days (withdrawal cohort) and increased by 32% after treatment with metreleptin for 14 days (initiation cohort). In the initiation cohort only, metreleptin decreased fasting glucose by 11% and triglycerides by 41% and increased hepatic insulin sensitivity. Liver fat decreased from 21.8% to 18.7%. In the initiation cohort, changes in lipolysis were not independent of food intake, but after 6 months of metreleptin treatment on an ad libitum diet, lipolysis decreased by 30% (palmitate turnover) to 35% (glycerol turnover).

conclusionUsing lipodystrophy as a human model of leptin deficiency and replacement, we show that metreleptin improves insulin sensitivity and decreases hepatic and circulating triglycerides and that these improvements are independent of its effects on food intake.

trial registrationClinicalTrials.gov NCT01778556FUNDING. This research was supported by the intramural research program of the NIDDK.

Indexed as

Insulin ResistanceAdolescentAdultAgedCross-Over StudiesEatingFemaleHumansLeptinLipodystrophyLiverMaleMiddle AgedTriglyceridesLeptinmetreleptinTriglyceridesDiabetesEndocrinologyInsulin signalingLeptinMetabolism

Identifiers

PMID29723161
PMCPMC6063484
OpenAlexW2799869022

What OpenQuestion holds

Textmetadata
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 OpenQuestion graph.