A Study on Intestinal Gas Symptoms to Evaluate the Effects of Gas Defense in Otherwise Healthy Adult

Completed · Not applicable · Has a placebo group

Conditions studied: Abdominal Pain, Abdominal Cramps, Flatulence

In brief

This is a randomized, double-blind, placebo-controlled trial to determine the safety and efficacy of Digestive Advantage™ Gas Defense formula, a probiotic dietary supplement. The study will last approximately four weeks, and subjects will be seen at a screening/randomization visit, and two follow-up visits. Study procedures will include administering questionnaires for assessment of the study product's effect on intestinal gas symptoms and quality of life.

Key facts

Study ID

NCT00881322

Run by

Miami Research Associates

People needed

61

Starts

2008-06-01

Expected to finish

2008-09-01

Last updated by the study team

2009-09-30

Who can join

Age: 18 and older, up to 75. Sex: any. Healthy volunteers: accepted.

You may qualify if…

• Subject is 18-75 years of age.
• Subject self-reports at least one of the following symptoms after eating a meal or snack:
• Abdominal pain/cramps
• Distended feeling/bloating
• Flatulence/gas
• Subject is in otherwise general good health as determined by physical exam and medical history.
• Subject is willing and able to comply with the protocol.
• Female subjects not defined as post-menopausal (excluding hysterectomized and post bilateral tubal ligations) must use a reliable method of birth control as defined within this protocol.
• Subject is able to understand and sign the informed consent (English or Spanish) to participate in the study.

You may not qualify if…

• Subject has any of the following medical conditions:
• active heart disease
• renal or hepatic impairment/disease
• Type I or II diabetes
• psychiatric disorders (hospitalized within the past one year)
• bipolar disorder
• Parkinson's disease
• unstable thyroid disease
• immune disorder (such as HIV/AIDS)
• any medical condition deemed exclusionary by the Principal Investigator (PI)
• Subject has a history of cancer (except localized skin cancer without metastases or in situ cervical cancer) within five years prior to screening.
• Subject has had any stomach or intestinal surgery (i.e. gastric bypass).
• Subject is currently taking antibiotics (or any drug that significantly interferes with bacterial flora) or has taken antibiotics within the 30 days prior to screening/enrollment.
• Subject is currently taking or has used in the past 30 days probiotics or prebiotics.
• Subject is on an unstable dose of medication (defined as fewer than 90 days at the same dose).
• Subject is currently taking any medication deemed exclusionary by PI.
• Subject has a history of or currently has any gastrointestinal disorders or inflammatory bowel conditions such as Crohn's disease, short bowel, or ulcerative colitis. Subjects may not have a diagnosis, be seeing a doctor, or taking prescription medication(s) for Irritable Bowel Syndrome (IBS).
• Subject has constipation defined as less than three spontaneous bowel movements per week.
• Subject is lactose intolerant (self-professed or diagnosed).
• Subject uses any of the following classification of GI medications two or more times per week: anti-spasmodics, motility agents, pro-kinetic agents or laxatives.
• Subject plans to use another over-the-counter gas-relief product daily during the study period. Over-the-counter gas relief products may be used as rescue medication (their use will be captured by the study staff). If a subject is using a fiber supplement prior to starting the study, he/she may continue as long as the frequency and quantity remain stable throughout the study period.
• Subject has an allergy to wheat or fish or any of the other product ingredients (see section 2.5.4).
• Subject has two or more food allergies.
• Subject has a history of drug or alcohol abuse within the past 12 months.
• Subject is deemed by the Investigator as an unsuitable candidate for receipt of an investigational dietary supplement, or unable to be followed up throughout the entire duration of the study.

Where it is running

• Miami Research Associates — Miami, Florida, United States
• Latin American Research — Santo Domingo, Dominican Republic

Full record on ClinicalTrials.gov

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