NCT04492930

Brief Summary

The purpose of this study is to investigate the effect of engaging in time restricted eating schedule on body weight, blood glucose, and ketones (breath acetone) in individuals with obesity.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
113

participants targeted

Target at P50-P75 for not_applicable

Timeline
Completed

Started Jun 2020

Shorter than P25 for not_applicable

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

June 30, 2020

Completed
27 days until next milestone

First Submitted

Initial submission to the registry

July 27, 2020

Completed
3 days until next milestone

First Posted

Study publicly available on registry

July 30, 2020

Completed
3 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

October 31, 2020

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

October 31, 2020

Completed
Last Updated

November 5, 2020

Status Verified

November 1, 2020

Enrollment Period

4 months

First QC Date

July 27, 2020

Last Update Submit

November 3, 2020

Conditions

Keywords

body weightweight lossketonesblood glucose

Outcome Measures

Primary Outcomes (3)

  • Change in body weight

    Change from baseline body weight in the intervention group

    Week 4

  • Change in ketone levels (breath acetone)

    Change from baseline in breath acetone in the intervention group

    Week 8

  • Change in blood glucose

    Change from baseline in blood glucose in the intervention group

    Week 8

Secondary Outcomes (3)

  • Change in body weight

    Week 8

  • Difference in weight loss between groups

    Weeks 4 and 8

  • Time to first meal

    Weeks 4 and 8

Other Outcomes (1)

  • Correlation between weight loss and change in ketone levels (breath acetone)

    Week 8

Study Arms (2)

Comparator

ACTIVE COMPARATOR

Time restricted eating

Behavioral: 12:12 Regimen

Intervention

EXPERIMENTAL

Time restricted eating

Behavioral: 14:10 Regimen

Interventions

14:10 RegimenBEHAVIORAL

14 hours of fasting, followed by a 10-h diet regimen that includes a fasting snack at 12 hours from the start of the fasting period

Intervention
12:12 RegimenBEHAVIORAL

12 hours of fasting, followed by a 12-h diet regimen

Comparator

Eligibility Criteria

Age18 Years - 65 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Male and female individuals between the age of 18 to 65 years (inclusive) at the time of signing the informed consent
  • Enrollment in the Jenny Craig® Rapid Results™ program
  • Access to a tablet or smartphone with a camera and internet access
  • Body mass index (BMI) at least 30 kg/m2
  • Ability to use a glucometer and Levl device (measures breath acetone)
  • Female participants of childbearing potential will agree to avoid pregnancy during the study. Medically acceptable methods of contraception include oral contraceptive medication, an intrauterine device (IUD), an implantable contraceptive (such as Implanon), an injectable contraceptive (such as Depo-Provera), a barrier method (such as condom or diaphragm with spermicide), abstinence, or having exclusive sexual relations with a vasectomized or same sex partner.
  • Capable of giving signed informed consent.

You may not qualify if:

  • Current use of the medications indicated for weight management or treatment of diabetes or for treatment of psychosis
  • Serious allergy to corn, corn products, or gluten (due to the number of Jenny's Cuisine® items that contain these food ingredients) that results in throat swelling, rash, hives, or anaphylactic shock
  • Serious allergy to milk, soy, wheat, peanuts, or tree nuts that results in throat swelling, rash, hives, or anaphylactic shock
  • Celiac disease
  • Currently being treated with hemodialysis
  • Currently being treated for anorexia/bulimia
  • Require a special diet (vegan, kosher, or halal)
  • Had a baby within the last 6 weeks
  • Are currently breastfeeding
  • Are pregnant
  • Bariatric surgery within the previous 3 years
  • Individuals belonging to the following vulnerable populations (people with disabilities, people who cannot read, educationally disadvantaged, individuals with a serious or life threatening illness, prisoners, non-English speakers, economically disadvantaged individuals, employees of the study sponsor)

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Jenny Craig

Carlsbad, California, 92008, United States

Location

MeSH Terms

Conditions

Intermittent FastingBody WeightWeight LossKetosis

Interventions

Clinical Protocols

Condition Hierarchy (Ancestors)

FastingFeeding BehaviorBehaviorSigns and SymptomsPathological Conditions, Signs and SymptomsBody Weight ChangesAcidosisAcid-Base ImbalanceMetabolic DiseasesNutritional and Metabolic Diseases

Intervention Hierarchy (Ancestors)

TherapeuticsEpidemiologic Study CharacteristicsHealth Care Evaluation MechanismsQuality of Health CareHealth Care Quality, Access, and Evaluation

Study Officials

  • Pamela Peeke, MD

    Jenny Craig, Inc.

    STUDY DIRECTOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
PARTICIPANT
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
INDUSTRY
Responsible Party
SPONSOR

Study Record Dates

First Submitted

July 27, 2020

First Posted

July 30, 2020

Study Start

June 30, 2020

Primary Completion

October 31, 2020

Study Completion

October 31, 2020

Last Updated

November 5, 2020

Record last verified: 2020-11

Data Sharing

IPD Sharing
Will share

Anonymized dataset of selected variables that underlie results in a publication. Some data may not be amenable to complete anonymization and will not be shared to ensure appropriate confidentiality of participant's data.

Shared Documents
STUDY PROTOCOL
Time Frame
beginning 6 months after publication
Access Criteria
Upon appropriate data request by other scientists

Locations