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Effect of GSP3 on Body Weight in Overweight and Obese Subjects (FLOW)

Primary Purpose

Overweight, Obesity

Status
Completed
Phase
Not Applicable
Locations
International
Study Type
Interventional
Intervention
GSP3
Avicel (modified Cellulose)
Sponsored by
Gelesis, Inc.
About
Eligibility
Locations
Arms
Outcomes
Full info

About this trial

This is an interventional treatment trial for Overweight focused on measuring weight loss, body composition, glycemic control, satiety

Eligibility Criteria

18 Years - 65 Years (Adult, Older Adult)All SexesDoes not accept healthy volunteers

Inclusion Criteria:

  1. Body Mass Index (BMI) ≥ 27 and ≤ 35 (at least 30% overweight and 30% obese subjects)
  2. Ability to follow verbal and written instructions
  3. Informed Consent Form signed by the subjects

Exclusion Criteria:

  1. Pregnancy or lactation
  2. Absence of medically approved contraceptive methods in females of childbearing potential (e.g., hysterectomy, non-oral contraceptive medications or intrauterine device combined with a barrier method, two combined barrier methods such as diaphragm and condom or spermicide; bilateral tubal ligation and vasectomy are not acceptable contraceptive methods)
  3. History of allergic reaction to carboxymethylcellulose, citric acid, modified cellulose, microcrystalline cellulose, and gelatin
  4. Administration of investigational products within 1 month prior to Screening Visit
  5. Night-shift workers
  6. Subjects who stopped smoking within 6 months prior to Screening Visit or considering smoking cessation during the study
  7. Subjects anticipating surgical intervention during the study
  8. Known type 1 or type 2 diabetes
  9. History of eating disorders including binge eating (except mild binge eater)
  10. Weight change > 3 kg within 3 months prior to and during the Screening period
  11. Supine systolic blood pressure (SBP) > 150 mm Hg and/or supine diastolic blood pressure (DBP) > 90 mm Hg
  12. Angina, coronary bypass, or myocardial infarction within 6 months prior to Screening Visit
  13. History of gastroesophageal reflux disease
  14. History of gastric or duodenal ulcer
  15. History of gastroparesis
  16. History of gastric bypass or any other gastric surgery
  17. History of intragastric balloon
  18. History of pancreatitis
  19. History of hemorrhoids
  20. History of malabsorption
  21. Laxative users
  22. History of hepatitis B or C
  23. History of human immunodeficiency virus
  24. History of cancer within the past 5 years (except adequately-treated localized basal cell skin cancer or in situ uterine cervical cancer)
  25. Any other clinically significant disease interfering with the assessments of Attiva, according to the Investigator
  26. Positive serum or urine pregnancy test(s) in females of childbearing potential
  27. Plasma glucose ≥ 126 mg/dL (7.0 mmol/L)
  28. Abnormal serum thyrotropin (TSH)
  29. Serum triglycerides > 500 mg/dL (5.65 mmol/L)
  30. Positive test for drugs in the urine
  31. Any relevant biochemical abnormality interfering with the assessments of Attiva, according to the Investigator
  32. Anti-obesity medications (including herbal preparations) within 1 month prior to Screening Visit
  33. Systemic corticosteroids within 1 month prior to Screening Visit
  34. Thyroid hormones or preparations within 1 month prior to Screening Visit (except in subjects on stable dose of replacement therapy for at least 1 month)
  35. Any other medication known to cause weight loss or weight gain within 1 month prior to Screening Visit
  36. Medications treating hypertension within 1 month prior to Screening Visit
  37. Medications treating dyslipidemia within 1 month prior to Screening Visit
  38. Anticipated requirement for use of prohibited concomitant medications

Sites / Locations

  • Hradec Králové
  • Charles University
  • University of Cophenhagen
  • Federico University Hospital
  • Policlinico Umberto I

Arms of the Study

Arm 1

Arm 2

Arm 3

Arm Type

Placebo Comparator

Experimental

Experimental

Arm Label

Placebo

GSP3 (2.25g)

GSP3 (3.75g)

Arm Description

Microcyrstalline cellulose (Avicel): provided in 5 capsules (350 mg each), twice daily (BID) prior to lunch and dinner.

GSP3: provided in 3 capsules (750 mg each), plus 2 placebo capsules (350 mg each), twice daily (BID) prior to lunch and dinner

GSP3: provided in 5 capsules (750 mg each), twice daily (BID) prior to lunch and dinner

Outcomes

Primary Outcome Measures

Change in Body Weight
Change from baseline in kilograms and percent (%) weight

Secondary Outcome Measures

Body weight responders
Change from baseline in body weight of at least 5%
Change in waist circumference
Change from baseline in waist circumference (centimeters)
Change in fat mass
Change in percentage (%) of total mas from baseline in fat- and bone-free fat mass measured by dual energy X-ray absorptiometry (DEXA)
Change in bone-free fat mass
Change in percentage (%) of total mas from baseline in fat- and bone-free fat mass measured by dual energy X-ray absorptiometry (DEXA)
Change in appetite (hunger, satiety, and fullness)
Assessed by self-administered Visual Analog Scale (VAS)
Change in food intake
Assessed by 24 hr dietary recall

Full Information

First Posted
December 19, 2016
Last Updated
May 9, 2018
Sponsor
Gelesis, Inc.
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1. Study Identification

Unique Protocol Identification Number
NCT03008954
Brief Title
Effect of GSP3 on Body Weight in Overweight and Obese Subjects
Acronym
FLOW
Official Title
A Randomized, Double-Blind, Placebo-Controlled, Parallel-Group Study Assessing the Effect of GSP3 on Body Weight in Overweight and Obese Subjects
Study Type
Interventional

2. Study Status

Record Verification Date
February 2018
Overall Recruitment Status
Completed
Study Start Date
July 2012 (undefined)
Primary Completion Date
February 2013 (Actual)
Study Completion Date
February 2013 (Actual)

3. Sponsor/Collaborators

Responsible Party, by Official Title
Sponsor
Name of the Sponsor
Gelesis, Inc.

4. Oversight

Studies a U.S. FDA-regulated Drug Product
No
Studies a U.S. FDA-regulated Device Product
No
Data Monitoring Committee
Yes

5. Study Description

Brief Summary
The FLOW (First Loss Of Weight) study is designed to assess the effects of repeated administration of GSP3, an investigational product, on body weight. It is a multicenter, randomized, double-blind, placebo-controlled, parallel-group, fixed-dose study. FLOW is being conducted in 5 medical centers in Italy, Czech Republic, and Denmark, and will randomize 123 overweight and obese adult males and females to receive either placebo, GSP3 (2.25g), or GSP3 (3.75g) in addition to a hypocaloric diet (-600 kcal/day) for 12 weeks.

6. Conditions and Keywords

Primary Disease or Condition Being Studied in the Trial, or the Focus of the Study
Overweight, Obesity
Keywords
weight loss, body composition, glycemic control, satiety

7. Study Design

Primary Purpose
Treatment
Study Phase
Not Applicable
Interventional Study Model
Parallel Assignment
Masking
ParticipantInvestigator
Allocation
Randomized
Enrollment
128 (Actual)

8. Arms, Groups, and Interventions

Arm Title
Placebo
Arm Type
Placebo Comparator
Arm Description
Microcyrstalline cellulose (Avicel): provided in 5 capsules (350 mg each), twice daily (BID) prior to lunch and dinner.
Arm Title
GSP3 (2.25g)
Arm Type
Experimental
Arm Description
GSP3: provided in 3 capsules (750 mg each), plus 2 placebo capsules (350 mg each), twice daily (BID) prior to lunch and dinner
Arm Title
GSP3 (3.75g)
Arm Type
Experimental
Arm Description
GSP3: provided in 5 capsules (750 mg each), twice daily (BID) prior to lunch and dinner
Intervention Type
Device
Intervention Name(s)
GSP3
Intervention Description
Each capsule of GSP3 (previously Attiva) contains 700 mg of a mixture of two food-grade materials: carboxymethylcellulose that is cross-linked with citric acid.
Intervention Type
Dietary Supplement
Intervention Name(s)
Avicel (modified Cellulose)
Intervention Description
Each capsule of Avicel contains approximately 350 mg of microcrystalline cellulose
Primary Outcome Measure Information:
Title
Change in Body Weight
Description
Change from baseline in kilograms and percent (%) weight
Time Frame
Measured at weeks 0,1,2,4,6,8,10,12,13, and follow up (week 14)
Secondary Outcome Measure Information:
Title
Body weight responders
Description
Change from baseline in body weight of at least 5%
Time Frame
12 weeks
Title
Change in waist circumference
Description
Change from baseline in waist circumference (centimeters)
Time Frame
Measured at weeks 0,1,2,4,6,8,10,12,13, and follow up (week 14)
Title
Change in fat mass
Description
Change in percentage (%) of total mas from baseline in fat- and bone-free fat mass measured by dual energy X-ray absorptiometry (DEXA)
Time Frame
Measured at weeks 0 and 13
Title
Change in bone-free fat mass
Description
Change in percentage (%) of total mas from baseline in fat- and bone-free fat mass measured by dual energy X-ray absorptiometry (DEXA)
Time Frame
Measured at weeks 0 and 13
Title
Change in appetite (hunger, satiety, and fullness)
Description
Assessed by self-administered Visual Analog Scale (VAS)
Time Frame
Measured at weeks 0,1,2,4,6,8,10,12,13, and follow up (week 14)
Title
Change in food intake
Description
Assessed by 24 hr dietary recall
Time Frame
Measured at weeks 0 and 12
Other Pre-specified Outcome Measures:
Title
Change in plasma glucose
Description
Change from baseline in millimoles per liter (mmol/L)
Time Frame
Measured at baseline and week 13
Title
Change in plasma glucose status (normal, impaired, diabetic)
Time Frame
Measured at weeks 0 and 13
Title
Change in serum insulin
Description
Change from baseline in miliunits per liter (mU/L)
Time Frame
Measured at weeks 0 and 13
Title
Change in insulin resistance
Description
Change from baseline in homeostatic model assessment of insulin resistance (HOMA-IR)
Time Frame
Measured at weeks 0 and 13
Title
Change in glycosylated hemoglobin (HbA1c)
Description
Measured in percentage (%)
Time Frame
Measured at weeks 0 and 13
Title
Change in total cholesterol, serum low-density lipoprotein (LDL), high-density lipoprotein (HDL), total cholesterol/HDL ratio, and triglycerides
Description
measured in mg/dL
Time Frame
Measured at weeks 0 and 13
Title
Change vital signs: heart rate, supine and standing systolic and diastolic blood pressure (SBP, DBP)
Description
Measured in beats per minute (heart rate) or millimeters of mercury (mmHg) for blood pressure
Time Frame
Measured at weeks 0,1,2,4,6,8,10,12,13, and follow up (week 14)
Title
All adverse events (AE), serious adverse events (SAE), and gastrointestinal symptoms
Description
Number and % of subjects with AE/SAEs spontaneously reported; gastrointestinal symptoms solicited via questionnaire
Time Frame
Measured at weeks 0,1,2,4,6,8,10,12,13, and follow up (week 14)
Title
Change in serum sodium
Description
Change from baseline in millimoles per liter (mmol/L)
Time Frame
Measured at weeks 0,4,8,12,13 and follow up (week 14)
Title
Change in serum potassium
Description
Change from baseline (mmol/L)
Time Frame
Measured at weeks 0,4,8,12,13 and follow up (week 14)
Title
Change in serum coloride
Description
Change from baseline (mmol/L)
Time Frame
Measured at weeks 0,4,8,12,13 and follow up (week 14)
Title
Change in serum calcium
Description
Change from baseline (mmol/L)
Time Frame
Measured at weeks 0,4,8,12,13 and follow up (week 14)
Title
Change in serum magnesium
Description
Change from baseline (mmol/L)
Time Frame
Measured at weeks 0,4,8,12,13 and follow up (week 14)
Title
Change in serum phosphorus
Description
Change from baseline (mmol/L)
Time Frame
Measured at weeks 0,4,8,12,13 and follow up (week 14)
Title
Change in serum glucose
Description
Change from baseline (mmol/L)
Time Frame
Measured at weeks 0,4,8,12,13 and follow up (week 14)
Title
Change in blood urea nitrogen (BUN)
Description
Change from baseline (mmol/L)
Time Frame
Measured at weeks 0,4,8,12,13 and follow up (week 14)
Title
Change in serum creatinine
Description
Change from baseline in micromoles per liter (umol/L)
Time Frame
Measured at weeks 0,4,8,12,13 and follow up (week 14)
Title
Change in serum uric acid
Description
Change from baseline (umol/L)
Time Frame
Measured at weeks 0,4,8,12,13 and follow up (week 14)
Title
Change in total bilirubin
Description
Change from baseline (umol/L)
Time Frame
Measured at weeks 0,4,8,12,13 and follow up (week 14)
Title
Change in alanine aminotransferase (ALT)
Description
Change from baseline in international units per liter (IU/L)
Time Frame
Measured at weeks 0,4,8,12,13 and follow up (week 14)
Title
Change in aspartate transaminase (AST)
Description
Change from baseline (IU/L)
Time Frame
Measured at weeks 0,4,8,12,13 and follow up (week 14)
Title
Change in gamma-glutamyl transpeptidase (GGT)
Description
Change from baseline (IU/L)
Time Frame
Measured at weeks 0,4,8,12,13 and follow up (week 14)
Title
Change in alkaline phosphatase (ALP)
Description
Change from baseline (IU/L)
Time Frame
Measured at weeks 0,4,8,12,13 and follow up (week 14)
Title
Change in serum total protein
Description
Change from baseline in grams per liter (g/L)
Time Frame
Measured at weeks 0,4,8,12,13 and follow up (week 14)
Title
Change in serum albumin
Description
Change from baseline (g/L)
Time Frame
Measured at weeks 0,4,8,12,13 and follow up (week 14)
Title
Change in hematocrit
Description
Change from baseline (%)
Time Frame
Measured at weeks 0,4,8,12,13 and follow-up (week 14)
Title
Change in hemoglobin
Description
Change from baseline (%)
Time Frame
Measured at weeks 0,4,8,12,13 and follow-up (week 14)

10. Eligibility

Sex
All
Minimum Age & Unit of Time
18 Years
Maximum Age & Unit of Time
65 Years
Accepts Healthy Volunteers
No
Eligibility Criteria
Inclusion Criteria: Body Mass Index (BMI) ≥ 27 and ≤ 35 (at least 30% overweight and 30% obese subjects) Ability to follow verbal and written instructions Informed Consent Form signed by the subjects Exclusion Criteria: Pregnancy or lactation Absence of medically approved contraceptive methods in females of childbearing potential (e.g., hysterectomy, non-oral contraceptive medications or intrauterine device combined with a barrier method, two combined barrier methods such as diaphragm and condom or spermicide; bilateral tubal ligation and vasectomy are not acceptable contraceptive methods) History of allergic reaction to carboxymethylcellulose, citric acid, modified cellulose, microcrystalline cellulose, and gelatin Administration of investigational products within 1 month prior to Screening Visit Night-shift workers Subjects who stopped smoking within 6 months prior to Screening Visit or considering smoking cessation during the study Subjects anticipating surgical intervention during the study Known type 1 or type 2 diabetes History of eating disorders including binge eating (except mild binge eater) Weight change > 3 kg within 3 months prior to and during the Screening period Supine systolic blood pressure (SBP) > 150 mm Hg and/or supine diastolic blood pressure (DBP) > 90 mm Hg Angina, coronary bypass, or myocardial infarction within 6 months prior to Screening Visit History of gastroesophageal reflux disease History of gastric or duodenal ulcer History of gastroparesis History of gastric bypass or any other gastric surgery History of intragastric balloon History of pancreatitis History of hemorrhoids History of malabsorption Laxative users History of hepatitis B or C History of human immunodeficiency virus History of cancer within the past 5 years (except adequately-treated localized basal cell skin cancer or in situ uterine cervical cancer) Any other clinically significant disease interfering with the assessments of Attiva, according to the Investigator Positive serum or urine pregnancy test(s) in females of childbearing potential Plasma glucose ≥ 126 mg/dL (7.0 mmol/L) Abnormal serum thyrotropin (TSH) Serum triglycerides > 500 mg/dL (5.65 mmol/L) Positive test for drugs in the urine Any relevant biochemical abnormality interfering with the assessments of Attiva, according to the Investigator Anti-obesity medications (including herbal preparations) within 1 month prior to Screening Visit Systemic corticosteroids within 1 month prior to Screening Visit Thyroid hormones or preparations within 1 month prior to Screening Visit (except in subjects on stable dose of replacement therapy for at least 1 month) Any other medication known to cause weight loss or weight gain within 1 month prior to Screening Visit Medications treating hypertension within 1 month prior to Screening Visit Medications treating dyslipidemia within 1 month prior to Screening Visit Anticipated requirement for use of prohibited concomitant medications
Overall Study Officials:
First Name & Middle Initial & Last Name & Degree
Hassan Heshmati, MD
Organizational Affiliation
Gelesis, Inc.
Official's Role
Study Director
Facility Information:
Facility Name
Hradec Králové
City
Hradec
ZIP/Postal Code
500 00
Country
Czechia
Facility Name
Charles University
City
Prague
ZIP/Postal Code
121 08
Country
Czechia
Facility Name
University of Cophenhagen
City
Copenhagen
ZIP/Postal Code
DK-1958
Country
Denmark
Facility Name
Federico University Hospital
City
Naples
ZIP/Postal Code
80131
Country
Italy
Facility Name
Policlinico Umberto I
City
Rome
ZIP/Postal Code
00161
Country
Italy

12. IPD Sharing Statement

Plan to Share IPD
Undecided
Citations:
PubMed Identifier
30421844
Citation
Greenway FL, Aronne LJ, Raben A, Astrup A, Apovian CM, Hill JO, Kaplan LM, Fujioka K, Matejkova E, Svacina S, Luzi L, Gnessi L, Navas-Carretero S, Alfredo Martinez J, Still CD, Sannino A, Saponaro C, Demitri C, Urban LE, Leider H, Chiquette E, Ron ES, Zohar Y, Heshmati HM. A Randomized, Double-Blind, Placebo-Controlled Study of Gelesis100: A Novel Nonsystemic Oral Hydrogel for Weight Loss. Obesity (Silver Spring). 2019 Feb;27(2):205-216. doi: 10.1002/oby.22347. Epub 2018 Nov 13. Erratum In: Obesity (Silver Spring). 2019 Apr;27(4):679. Obesity (Silver Spring). 2019 Jul;27(7):1210.
Results Reference
derived

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Effect of GSP3 on Body Weight in Overweight and Obese Subjects

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