CClinicalTrials.gg
CompletedNCT01780870Updated Aug 7, 2017Results posted

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

An interventional study of Weight loss group (Full meal replacement products) in Obesity and Weight Loss, sponsored by Beth Israel Deaconess Medical Center. Completed at 1 site in United States. Open to participants aged 18 Years to 50 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2017-08-07.

Sponsored by Beth Israel Deaconess Medical Center · Not applicable, Interventional, and Basic science

Phase
Not applicable
Study type
Interventional
Enrollment
5
Allocation
Non-randomized
Ages
18 Years to 50 Years
Sex
All
01

Study summary

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
02

Conditions studied

  • Obesity
  • Weight Loss

Keywords

  • Overweight
  • Obesity
  • Obese
  • Weight loss
03

In context

Insulin Resistance

1,960 studies on the registry are indexed under Insulin Resistance; 306 are open to participants now.

This study's enrollment of 5 is below the median of 40 across 1,536 interventional studies indexed under Insulin Resistance.

Browse Insulin Resistance studies →

Lead sponsor

Beth Israel Deaconess Medical Center is the lead sponsor of 560 studies on the registry; 80 are open to participants now.

Of its 75 completed or terminated interventional studies of FDA-regulated products, 61 (81%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 50 Years
Sexes eligible
All
Accepts healthy volunteers
Yes

Eligibility criteria

Inclusion Criteria for interventional group:

  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

Inclusion Criteria for control group:

  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
05

Study design

Phase
Not applicable
Primary purpose
Basic science
Allocation
Non-randomized
Intervention model
Single group
Masking
None (open label)
Enrollment
5 participants (actual)

Study arms

  • No intervention
    Control Group

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

  • Active comparator
    Weight loss group

    Full Meal replacement Protocol

    Dietary Supplement: Weight loss group (Full meal replacement products)

Interventions

  • Dietary supplementWeight 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

    Also known as: Full meal replacement products (1280-1320 kcal/day)

06

What researchers measure

Primary outcomes

  1. The Primary Outcome Will be the Leptin Levels at Baseline and 8 Weeks

    The secondary outcome was deleted, since it was finally not performed in the study due to problems in enrollment

    Time frame: 8 weeks

  2. The Primary Outcome Will be Insulin Levels at Baseline and 8 Weeks

    The secondary outcome was deleted, since it was finally not performed in the study due to problems in enrollment

    Time frame: 8 weeks

  3. The Primary Outcome Will be HOMA-IR at Baseline and 8 Weeks

    The secondary outcome was deleted, since it was finally not performed in the study due to problems in enrollment

    Time frame: 8 weeks

07

Results

Posted Aug 7, 2017

Participant flow

Participant flow — Overall Study
MilestoneControl GroupWeight Loss Group
Started05
Completed05
Not completed00

Outcome measures

PrimaryThe Primary Outcome Will be the Leptin Levels at Baseline and 8 Weeks

The secondary outcome was deleted, since it was finally not performed in the study due to problems in enrollment

Time frame:
8 weeks
Reported as:
Mean · ng/ml
The Primary Outcome Will be the Leptin Levels at Baseline and 8 Weeks
ng/mlControl GroupWeight Loss Group
Baseline Leptin—39.5 ± 7.7
Week 8 Leptin—13.4 ± 1.6
PrimaryThe Primary Outcome Will be Insulin Levels at Baseline and 8 Weeks

The secondary outcome was deleted, since it was finally not performed in the study due to problems in enrollment

Time frame:
8 weeks
Reported as:
Mean · μU/ml
The Primary Outcome Will be Insulin Levels at Baseline and 8 Weeks
μU/mlControl GroupWeight Loss Group
Baseline Insulin—13 ± 1.6
Week 8 Insulin—6.4 ± 1.4
PrimaryThe Primary Outcome Will be HOMA-IR at Baseline and 8 Weeks

The secondary outcome was deleted, since it was finally not performed in the study due to problems in enrollment

Time frame:
8 weeks
Reported as:
Mean · HOMA score
The Primary Outcome Will be HOMA-IR at Baseline and 8 Weeks
HOMA scoreControl GroupWeight Loss Group
Baseline HOMA-IR—2.82 ± 0.37
Week 8 HOMA-IR—1.33 ± 0.31

Adverse events

Non-serious events are listed at a 0% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
Control Group———
Weight Loss Group—0/5 (0%)0/5 (0%)

Baseline characteristics

Due to enrolling problems, no subjects were enrolled to the control group. All the subjects were enrolled to the weight loss group

Age, Categorical
Age, Categorical(Participants)Control GroupWeight Loss GroupTotal
<=18 years—00
Between 18 and 65 years—55
>=65 years—00
Age, Continuous
Age, Continuous(years)Control GroupWeight Loss GroupTotal
Mean—32.8 ± 3.132.8 ± 3.1
Sex: Female, Male
Sex: Female, Male(Participants)Control GroupWeight Loss GroupTotal
Female—55
Male—00
Region of Enrollment
Region of Enrollment(participants)Control GroupWeight Loss GroupTotal
United States—55
08

Study locations

1 site
  • Beth Israel Deaconess Medical Center
    Boston, Massachusetts 02115, United States
09

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

10

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Aug 7, 2017, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
11

Registry details

Key details

Study ID
NCT01780870
Lead sponsor
Beth Israel Deaconess Medical Center
Responsible party
Christos Mantzoros (Professor of Medicine, Beth Israel Deaconess Medical Center) — Principal investigator
First posted
Jan 31, 2013
Start date
Sep 2012
Primary completion
Jan 2017
Completion
Jan 2017
Results posted
Aug 7, 2017
Last update
Aug 7, 2017

Study contacts

Christos Mantzoros, MD
principal investigator · Beth Israel Deaconess Medical Center

Oversight

Data monitoring committee
Yes
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in May 2017. You cannot join it, but the record below documents what was studied.

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