A Study Evaluating the Effects of a High Viscosity Non-starch Polysaccharide (PolyGlycopleX® - PGX®) on Glycemic Control, Cardiometabolic Risk Factors and Weight Loss in Overweight and Obese Type II Diabetics

Last updated: February 8, 2021
Sponsor: InovoBiologic Inc.
Overall Status: Terminated

Phase

3

Condition

Obesity

Weight Loss

Diabetes Prevention

Treatment

N/A

Clinical Study ID

NCT01644201
Wharton Study No. 05
  • Ages 18-75
  • All Genders

Study Summary

One out of two adults in Canada is currently overweight and therefore at increased risk for a number of medical conditions including diabetes, high blood pressure, heart attacks and stroke. Obesity is less prevalent in populations consuming large amounts of dietary fibre, suggesting that fibre intake could play an important role in prevention and progression of obesity and diabetes and other conditions. Several studies have suggested that fibre has a positive effect on blood sugar and may help lower body weight.

The purpose of this study is to help better understand the effect of adding fibre supplementation to a low calorie diet on blood sugar control and weight loss. The investigators hypothesize that blood sugar control will improve in participants in the fibre supplementation group.

Men and women, with stable Type 2 Diabetes (e.g. no medication change in the last 3 months), between 18 - 75 years of age, and with a Body Mass Index (BMI) between 27 - 60 kg/m2 can participate in this study.

Eligibility Criteria

Inclusion

Inclusion Criteria:

  • 18-75 years of age (if >65 years of age, enrolment at the discretion of qualifiedinvestigator)
  • BMI 27-60 Kg/m2
  • Stable Type 2 diabetes mellitus (i.e. no medication change in the last 3 months)
  • Ability to provide written informed consent in accordance with Good Clinical Practice (GCP) and local legislation

Exclusion

Exclusion Criteria:

  • HbA1c <7.0% or >10.0%
  • History of any bariatric surgery
  • >10 Kg weight gain or weight loss in the past 3 months
  • Known eating disorder
  • Participant has taken weight loss medication in the last 3 months (eg. Meridia,Xenical)
  • Participant is taking any of the following medications that can alter body weight orappetite:
  • Antipsychotics or neuroleptics
  • Prednisone
  • Antidepressants
  • Tricyclic such as amitriptyline, imipramine (Tofranil), and doxepin (Sinequan)
  • Monoamine oxidase inhibitors (MAOIs) such as tranylcypromine, (Parnate),isocarboxazid (Marplan) and phenelzine (Nardil)
  • Tetracyclic such as Mirtazapine (Remeron)
  • Serotonin antagonist and reuptake inhibitors (SARI) such as Trazodone Note: The following antidepressants are NOT exclusion medications:
  • SSRIs such as citalopram (Celexa), escitalopram (Lexapro), fluvoxamine (Luvox),fluoxetine (Prozac), sertraline (Zoloft), paroxetine (Paxil)
  • Wellbutrin
  • SNRIs such as venlafaxine (Effexor), duloxetine (Cymbalta)
  • Participant is taking any of the following natural health products that can alterbody weight or appetite: ephedra, synephrine, green tea extracts, daily use ofbulk fibre laxatives (e.g. psyllium, glucomannan)
  • Participant not eligible for enrolment in a medically supervised LCD program atthe Wharton Medical Clinic (WMC only accepts patients by referral from a familyphysician. To be eligible patients must have a BMI ≥ 30 or ≥ 27 with at least oneobesity related comorbidity.)
  • Patient with a past history of severe hypoglycaemia (as defined by the DiabetesControl and Complications Trial (DCCT)) whether or not on insulin, sulfonylureasand non-sulfonylurea secretogogues
  • Patient with documented hypoglycemic unawareness, whether or not on insulin,sulfonylureas and non-sulfonylurea secretogogues
  • Achalasia (i.e. difficulty swallowing)
  • Patient is taking medication that targets GLP-1 (glucagon-like peptide-1)including GLP-1 analogues (e.g. Byetta (Exenatide), Victoza (Liraglutide)) andDPP-IV inhibitors (e.g. Januvia(Sitagliptin), Onglyza (Saxagliptin).
  • Positive urine pregnancy test, pregnancy, breast feeding, or hormonalcontraceptives started in the last 6 months prior to the start of the study
  • Absence of a highly effective method of birth control for female of childbearingpotential (premenopausal or not surgically sterile) OR does not plan to usecontraception for the duration of study participation AND does not agree toperiodic urine pregnancy testing during the study. ICH M3 defines a highlyeffective method of birth control as those which result in a low failure rate (i.e. less than 1% per year) when used consistently and correctly such asimplants, injectables, combined oral contraceptives, some IUDs, sexual abstinenceor vasectomised partner.
  • Substance abuse: tobacco (including those who have quit smoking in the last 12months), Cannabis sativa, or other controlled substances use
  • Any allergies to study product ingredients including dairy, whey, rice, soy andor coconut.
  • Labile or uncontrolled hypertension (SBP ≥ 160 mmHg and/or DBP ≥ 100 mmHg)
  • Current diagnosis or history of gastrointestinal diseases or disorders (with theexception of Irritable Bowel Syndrome and GERD at the discretion of qualifiedinvestigator).
  • Heart failure
  • Substantial neurological or psychological illness within the last 6 months (atthe discretion of qualified investigator)
  • Contraindications to LCD
  1. any major surgery that is, at the time of screening, planned to take placeduring the study
  2. history of drug or alcohol dependency within six months prior to signing theinformed consent form.
  3. history of active malignancy (exceptions at the discretion of qualifiedinvestigator e.g. squamous cell carcinoma), chronic inflammatory disorder,or chronic infections which would interfere with protocol completion
  4. history of CV event or angina within 6 months (with the exception of stableangina at the discretion of qualified investigator)
  5. history of active gall bladder disease where the gallbladder was not removed
  6. inflammatory bowel disease
  7. type 1 diabetes
  8. significant renal impairment eGFR < 50
  9. porphyria
  10. cirrhosis
  11. patients deemed unable to comprehend or comply with the diet and/or,
  12. unable to attend program follow up visits
  • Participant cannot fully understand all instructions in English.
  • Any other medical, social or geographic condition, which, in the opinion of thequalified investigator would not allow safe completion of the protocol.

Study Design

Total Participants: 100
Study Start date:
October 01, 2012
Estimated Completion Date:
November 30, 2016

Connect with a study center

  • Wharton Medical Clinic and Weight Management Centre

    Hamilton, Ontario
    Canada

    Site Not Available

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