Effect of Daily Glucomannan in Overweight Patients

NCT ID: NCT01485718

Last Updated: 2011-12-13

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

UNKNOWN

Clinical Phase

PHASE4

Total Enrollment

40 participants

Study Classification

INTERVENTIONAL

Study Start Date

2011-10-31

Study Completion Date

2012-03-31

Brief Summary

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Glucomannan is a dietary supplement that has been marketed for weight loss. There is some research that supports this claim but more research is necessary. This is research study is being conducted to determine if the dietary supplement glucomannan is effective for weight loss in adults greater than 18 years of age who are overweight.

Participants will be randomized in a 1:1 manner (like the flip of a coin) to receive either glucomannan 575 milligrams, 2 capsules three times daily or placebo, 2 capsules three times daily. The study will last for 12 weeks.

At the start of the study participants will be asked questions about current medications and diet/exercise regimen, a weight and height will be obtained, and they will be given a one-month's supply of study supplement. An investigator will call each participant after they have been taking the supplement for 2 weeks to ensure that the participant is tolerating the supplement and answer any questions. Throughout the study, participants will be required to follow-up with investigators in the office every 4 weeks (a total of 3 follow-up appointments). Every 4 weeks, the investigators will weigh participants, count the leftover capsules from the previous month, and ask about any adverse effects you may be experiencing. At the conclusion of the study, a final weight will be compared with the baseline weight to determine if the medication had an effect on weight loss.

Detailed Description

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Conditions

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Overweight Obesity

Keywords

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Obesity Overweight Weight loss

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

QUADRUPLE

Participants Caregivers Investigators Outcome Assessors

Study Groups

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Glucomannan

Participants in the glucomannan arm will receive glucomannan 2 capsules 30 minutes before the three largest meals of the day.

Group Type ACTIVE_COMPARATOR

Glucomannan

Intervention Type DIETARY_SUPPLEMENT

Participants in the glucomannan arm will receive glucomannan 2 capsules 30 minutes before the three largest meals of the day for 12 weeks

Placebo

Participants in the placebo arm will receive placebo 2 capsules 30 minutes before the three largest meals of the day.

Group Type PLACEBO_COMPARATOR

Placebo

Intervention Type DIETARY_SUPPLEMENT

Participants in the placebo arm will receive placebo 2 capsules 30 minutes before the three largest meals of the day.

Interventions

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Glucomannan

Participants in the glucomannan arm will receive glucomannan 2 capsules 30 minutes before the three largest meals of the day for 12 weeks

Intervention Type DIETARY_SUPPLEMENT

Placebo

Participants in the placebo arm will receive placebo 2 capsules 30 minutes before the three largest meals of the day.

Intervention Type DIETARY_SUPPLEMENT

Eligibility Criteria

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Inclusion Criteria

* Patients ≥18 years old
* Overweight (BMI ≥ 25 kg/m2)

Exclusion Criteria

* Pregnant or nursing women
* Women of childbearing age will be excluded unless they are on some form of contraception
* Participation in any other formal or informal weight reduction program

1. Currently enrolled in another weight loss study
2. Currently enrolled in a weight loss program
3. Active attempt to lose weight with diet and/or exercise within the last month
4. Currently on one of the following medications known to cause weight loss:

* Alli/Xenical(orlistat)
* Adipex-P (phentermine)
* Bontril (phendimetrazine)
* Dexoxyn (methamphetamine)
* Didrex (benzphetamine)
* Tenuate (diethylpropion)
* Meridia (sibutramine)
* Byetta (exenatide) or Victoza (liraglutide)
* Stimulants
* Recently (within the last three months) started on any medication that may cause weight gain
* A diagnosis of heart failure
* Structural abnormalities of the esophagus or gut
* Previous GI surgery for weight reduction
* Inflammatory bowel or irritable bowel disease
* A life expectancy of \<6 months
* Allergy to glucomannan or any component of the placebo
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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ProMedica Health System

OTHER

Sponsor Role lead

Responsible Party

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Katherine Cochran

PGY1-Pharmacy Resident

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Steve Smith, MS, RPh

Role: STUDY_DIRECTOR

The Toledo Hospital

Ashley M Parrott, PharmD

Role: STUDY_CHAIR

The Toledo Hospital

Louito Edje, MD

Role: STUDY_CHAIR

The Toledo Hospital

Lindsey Bostelman, MD

Role: STUDY_CHAIR

The Toledo Hospital

David Knieriem

Role: STUDY_CHAIR

The Toledo Hospital

Locations

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W.W. Knight Family Practice Center

Toledo, Ohio, United States

Site Status

Countries

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United States

Other Identifiers

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11-117

Identifier Type: -

Identifier Source: org_study_id