Weight Loss Study-Mechanism Underlying the Improvement of Insulin Resistance in Response to Weight Loss

NCT ID: NCT01780870

Last Updated: 2017-08-07

Study Results

Results available

Outcome measurements, participant flow, baseline characteristics, and adverse events have been published for this study.

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Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

5 participants

Study Classification

INTERVENTIONAL

Study Start Date

2012-09-30

Study Completion Date

2017-01-31

Brief Summary

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The main purpose of this study is to assess factors mediating the changes in insulin sensitivity and glucose tolerance before and after 10 lbs ± or 2% weight loss reduction as well as 2, 3, 6, 12, and 24 months after initiation of a low calorie diet.

The investigators will also study the following:

1. The impact of diet induced weight loss on hormones/adipokine levels
2. The impact of diet induced weight loss on leptin tolerance

Detailed Description

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Conditions

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Obesity Weight Loss

Study Design

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Allocation Method

NON_RANDOMIZED

Intervention Model

SINGLE_GROUP

Primary Study Purpose

BASIC_SCIENCE

Blinding Strategy

NONE

Study Groups

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Control Group

Obese, otherwise healthy people who are not receiving any nutritional,surgical or behavioral therapy

Group Type NO_INTERVENTION

No interventions assigned to this group

Weight loss group

Full Meal replacement Protocol

Group Type ACTIVE_COMPARATOR

Weight loss group (Full meal replacement products)

Intervention Type DIETARY_SUPPLEMENT

In the intervention arm of this non randomized, open label study to assess the effects of weight loss on insulin sensitivity and leptin tolerance subjects will use full meal replacement products (1280-1320kcal/day). Subjects will be on the full meal replacement products only, for the first 12 weeks, between 13 to 19 weeks they will be transitioned to regular food, from 19 weeks and going forward they will be on chronic maintenance phase

Interventions

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Weight loss group (Full meal replacement products)

In the intervention arm of this non randomized, open label study to assess the effects of weight loss on insulin sensitivity and leptin tolerance subjects will use full meal replacement products (1280-1320kcal/day). Subjects will be on the full meal replacement products only, for the first 12 weeks, between 13 to 19 weeks they will be transitioned to regular food, from 19 weeks and going forward they will be on chronic maintenance phase

Intervention Type DIETARY_SUPPLEMENT

Other Intervention Names

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Full meal replacement products (1280-1320 kcal/day)

Eligibility Criteria

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Inclusion Criteria

1. Adult men and women, age 18-50
2. English speaking
3. Body mass index (pre weight loss) ≥30 kg/m2 but \<40 kg/m2
4. Willing to enroll in a low calorie full meal replacement weight loss program
5. Willing and able to take part in a multi year study involving visits


1. Adult men and women, age 18-50
2. English speaking
3. Body mass index (pre weight loss) ≥30 kg/m2 but \<40 kg/m2
4. Willing and able to take part in a multi year study involving visits
Minimum Eligible Age

18 Years

Maximum Eligible Age

50 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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Beth Israel Deaconess Medical Center

OTHER

Sponsor Role lead

Responsible Party

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Christos Mantzoros

Professor of Medicine

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Christos Mantzoros, MD

Role: PRINCIPAL_INVESTIGATOR

Beth Israel Deaconess Medical Center

Locations

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Beth Israel Deaconess Medical Center

Boston, Massachusetts, United States

Site Status

Countries

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United States

Other Identifiers

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2011P000293

Identifier Type: -

Identifier Source: org_study_id

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