NCT02432287

Brief Summary

Metformin, an FDA approved first-line drug for the treatment of type 2 diabetes, has known beneficial effects on glucose metabolism. Evidence from animal models and in vitro studies suggest that in addition to its effects on glucose metabolism, metformin may influence metabolic and cellular processes associated with the development of age-related conditions, such as inflammation, oxidative damage, diminished autophagy, cell senescence and apoptosis. As such, metformin is of particular interest in clinical translational research in aging since it may influence fundamental aging factors that underlie multiple age-related conditions. The investigators therefore propose a pilot study to examine the effect of metformin treatment on the biology of aging in humans. Namely, whether treatment with metformin will restore the gene expression profile of older adults with impaired glucose tolerance (IGT) to that of young healthy subjects.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
16

participants targeted

Target at below P25 for phase_4

Timeline
Completed

Started Oct 2014

Typical duration for phase_4

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

Study Start

First participant enrolled

October 1, 2014

Completed
5 months until next milestone

First Submitted

Initial submission to the registry

February 24, 2015

Completed
2 months until next milestone

First Posted

Study publicly available on registry

May 4, 2015

Completed
4 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

September 1, 2015

Completed
2.3 years until next milestone

Study Completion

Last participant's last visit for all outcomes

December 1, 2017

Completed
6 months until next milestone

Results Posted

Study results publicly available

May 31, 2018

Completed
Last Updated

May 21, 2021

Status Verified

May 1, 2021

Enrollment Period

11 months

First QC Date

February 24, 2015

Results QC Date

December 20, 2017

Last Update Submit

May 19, 2021

Conditions

Keywords

agingmetforminprediabetes

Outcome Measures

Primary Outcomes (1)

  • Increase in Number of Expressed Genes in Muscle and Adipose Tissue Using RNA Sequencing (RNA-Seq)

    The investigators hypothesize that treatment with metformin will result in changes in the transcriptome. The investigators will test this by identifying increases in gene expression in muscle and adipose tissue with RNA Sequencing (RNA-Seq) in metformin and in placebo.

    6 weeks

Secondary Outcomes (1)

  • Mixed Meal Tolerance. Assessment of Insulin Sensitivity and Insulin Secretion (Using a Modification of the Matsuda Index)

    6 weeks

Study Arms (2)

Metformin

EXPERIMENTAL

Metformin, an FDA approved first-line drug for the treatment of type 2 diabetes, has known beneficial effects on glucose metabolism.

Drug: Metformin

Placebo

EXPERIMENTAL

Placebo

Drug: Placebo

Interventions

To determine if treatment with metformin (1700 mg/day) will restore the gene expression profile of older, glucose intolerant adults to that of young healthy subjects.

Also known as: Glucophage
Metformin

there is no other name we used for the placebo

Also known as: no others
Placebo

Eligibility Criteria

Age60 Years+
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Men and women;
  • age \>60 years with IGT based on 75g OGTT (fasting plasma glucose \< 126 mg/dl, 2-hr glucose between 140 - 199 mg/dl);
  • this definition of IGT will include individuals with combined impaired fasting glucose (IFG) and IGT.

You may not qualify if:

  • Serious chronic or acute illness: cancer, clinically significant congestive heart failure, COPD, inflammatory conditions, serum creatinine \> 1.4 mg/dl (female) or \> 1.5 mg/dl (male), active liver disease, history of metabolic acidosis, poorly controlled hypertension, epilepsy, recent (within 3 months) CVD event (MI, PTCA, CABG, stroke); history of bariatric or other gastric surgery, cigarette smoking, binge alcohol use (\>7 drinks in 24 hrs).
  • Treatment with drugs known to influence glucose metabolism (other diabetes medications, systemic glucocorticoids, pharmacologic doses of niacin)
  • Hypersensitivity to metformin or any component of the formulation

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Einstein College of Medicine of Yeshiva University

The Bronx, New York, 10461, United States

Location

MeSH Terms

Conditions

Prediabetic State

Interventions

Metformin

Condition Hierarchy (Ancestors)

Diabetes MellitusGlucose Metabolism DisordersMetabolic DiseasesNutritional and Metabolic DiseasesEndocrine System Diseases

Intervention Hierarchy (Ancestors)

BiguanidesGuanidinesAmidinesOrganic Chemicals

Limitations and Caveats

Limitations: Crossover design may lead to a carryover effect that was not detected due to small sample size. The sample size was small and certain genes that were differentially expressed may not have been detected.

Results Point of Contact

Title
Erika Brutsaert
Organization
Albert Einstein College of Medicine

Study Officials

  • Jill Crandall, MD

    Einstein College of Medicine

    PRINCIPAL INVESTIGATOR

Publication Agreements

PI is Sponsor Employee
No
Restrictive Agreement
No

Study Design

Study Type
interventional
Phase
phase 4
Allocation
RANDOMIZED
Masking
DOUBLE
Who Masked
PARTICIPANT, INVESTIGATOR
Purpose
PREVENTION
Intervention Model
CROSSOVER
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

February 24, 2015

First Posted

May 4, 2015

Study Start

October 1, 2014

Primary Completion

September 1, 2015

Study Completion

December 1, 2017

Last Updated

May 21, 2021

Results First Posted

May 31, 2018

Record last verified: 2021-05

Locations