NCT04507516

Brief Summary

This pilot study is designed to investigate the effect of water-only fasting and refeeding on the homeostatic model of insulin resistance (HOMA-IR), a measure of insulin resistance.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
48

participants targeted

Target at P25-P50 for all trials

Timeline
Completed

Started Apr 2019

Shorter than P25 for all trials

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

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

April 2, 2019

Completed
10 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

February 10, 2020

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

February 10, 2020

Completed
6 months until next milestone

First Submitted

Initial submission to the registry

August 6, 2020

Completed
5 days until next milestone

First Posted

Study publicly available on registry

August 11, 2020

Completed
Last Updated

August 11, 2020

Status Verified

August 1, 2020

Enrollment Period

10 months

First QC Date

August 6, 2020

Last Update Submit

August 7, 2020

Conditions

Outcome Measures

Primary Outcomes (1)

  • Changes in insulin resistance from baseline

    Insulin resistance assessed using serum glucose and insulin to calculate homeostatic model of insulin resistance (HOMA-IR) \[fasting insulin (microU/L) x fasting glucose (nmol/L)/22.5\]

    Baseline, up to 10 to 40 days after baseline, up to 5 to 20 days after end of fast

Secondary Outcomes (5)

  • Changes in lipid profile from baseline

    Baseline, up to 10 to 40 days after baseline, up to 5 to 20 days after end of fast

  • Changes in weight from baseline

    Baseline, up to 10 to 40 days after baseline, up to 5 to 20 days after end of fast

  • Changes in resting systolic blood pressure (SBP) and diastolic blood pressure (DBP) from baseline

    Baseline, up to 10 to 40 days after baseline, up to 5 to 20 days after end of fast

  • Changes in abdominal circumference from baseline

    Baseline, up to 10 to 40 days after baseline, up to 5 to 20 days after end of fast

  • Changes in high sensitivity C-reactive protein (hsCRP) from baseline

    Baseline, up to 10 to 40 days after baseline, up to 5 to 20 days after end of fast

Study Arms (1)

Water-only Fasting Cohort

Obese/overweight, non-diabetic patients undergoing elective water-only fasting treatment.

Other: Water-only Fasting

Interventions

Water-only fasting for at least 10 days followed by 5 days of refeed.

Water-only Fasting Cohort

Eligibility Criteria

Age40 Years - 70 Years
Sexall
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

Overweight and obese, non-diabetic participants recruited from voluntary patients.

You may qualify if:

  • Any gender
  • years old
  • Fasting plasma glucose \<12 6mg/dL and/or hemoglobin A1c \<7%
  • Body Mass Index (BMI) \>25 kg/m2
  • Elect and qualify for a water-only fast of at least 10 consecutive days
  • Provide informed consent

You may not qualify if:

  • Active malignancy
  • Active inflammatory disorder including classic autoimmune connective tissue (Lupus, Sjogrens, ANCA), multiple sclerosis, and inflammatory bowel disorders (Ulcerative colitis, Crohn's)
  • Stroke or heart attack within the last 90 days

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

TrueNorth Health Center

Santa Rosa, California, 95404, United States

Location

Biospecimen

Retention: SAMPLES WITHOUT DNA

plasma, sera

MeSH Terms

Conditions

Insulin Resistance

Condition Hierarchy (Ancestors)

HyperinsulinismGlucose Metabolism DisordersMetabolic DiseasesNutritional and Metabolic Diseases

Study Officials

  • Toshia R Myers, PhD

    Director

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
PROSPECTIVE
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

August 6, 2020

First Posted

August 11, 2020

Study Start

April 2, 2019

Primary Completion

February 10, 2020

Study Completion

February 10, 2020

Last Updated

August 11, 2020

Record last verified: 2020-08

Locations