Efficacy and Safety of Vibrant Capsule vs. Placebo for the Treatment of Chronic Idiopathic Constipation

Study Results

Results available

Outcome measurements, participant flow, baseline characteristics, and adverse events have been published for this study.

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Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

349 participants

Study Classification

INTERVENTIONAL

Study Start Date

2019-04-08

Study Completion Date

2022-01-05

Brief Summary

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The study is a prospective, randomized, multicenter, adaptive design, double blinded, placebo-controlled study, to evaluate the efficacy and safety of Vibrant Capsule vs. placebo in relieving constipation in subjects with Chronic Idiopathic Constipation.

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Detailed Description

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Subjects came for 4 visits: Screening (visit 1), baseline (visit 2), after 4 treatment weeks from baseline (visit 3) and after 8 treatment weeks from baseline (Final visit , visit 4). A total of 8 treatment weeks

Three arms were assessed:

* Vibrant Capsule mode A administered 5 times per week
* Vibrant Capsule mode B administered 5 times per week
* Placebo Capsule administered 5 times per week The difference between the 2 operating modes is in the vibrating sequence during the capsule's operating time.

Following Interim Analysis one active arm was dropped and the study continued with 2 arms, placebo and an active arm.

Conditions

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Chronic Idiopathic Constipation

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

The study design initially comprised 3 arms: 2 active vibrating capsule arms (Modes A and B) and 1 placebo arm. Based on the analysis of the first pre-define phase of the study, active mode B was discontinued and the trial was completed using mode A. Therefore, study results are available only for active A and Placebo arms.

Primary Study Purpose

TREATMENT

Blinding Strategy

DOUBLE

Participants Investigators

This was a double blind, placebo controlled study and both the participant and the investigator were masked. The study investigators, sponsors and participants were all blinded throughout the study. A research pharmacist/investigator who was not involved with evaluating patients or conducting the study, provided training to the participants and dispensed the correct study arm allocation. This individual had no other role in the study.

Study Groups

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Vibrant Capsule mode A

Vibrant Capsule mode A administered 5 times per week

Group Type ACTIVE_COMPARATOR

Vibrating capsule

Intervention Type DEVICE

Vibrating Capsule administered 5 times per week

Vibrant Capsule mode B

Vibrant Capsule mode B administered 5 times per week.

Based on the analysis of the first pre-define phase of the study, active mode B was discontinued, and the trial was completed using mode A. Therefore, study results are not available for arm B.

Group Type ACTIVE_COMPARATOR

Vibrating capsule

Intervention Type DEVICE

Vibrating Capsule administered 5 times per week

Placebo Capsule

Placebo Capsule administered 5 times per week

Group Type PLACEBO_COMPARATOR

Vibrating capsule

Intervention Type DEVICE

Vibrating Capsule administered 5 times per week

Interventions

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Vibrating capsule

Vibrating Capsule administered 5 times per week

Intervention Type DEVICE

Eligibility Criteria

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Inclusion Criteria

1. Subjects aged 22 years and older
2. Subjects with Chronic Idiopathic Constipation (CIC) according to Rome III criteria and who have not experienced relief of their symptoms from available therapies (osmotic and stimulant laxatives used for at least one month at recommended dose)
3. Subjects with an average of ≤2.5 Spontaneous Bowel Movements (SBM) per week and ≥1 SBM per week
4. Normal colonoscopy performed within 5 years prior to study participation, unless the subjects are \<50 years old and without alarm signs and/or symptoms
5. Subject signed the Informed Consent Form (ICF)
6. Female subjects must have a negative blood pregnancy test during screening, confirmed by a negative urine pregnancy test during baseline and must not be lactating prior to receiving study medication. For females of child-bearing potential, a hormonal (i.e., oral, implantable, or injectable) and single-barrier method, or a double-barrier method of birth control must be used throughout the study. All other female subjects must have the reason for their inability to bear children documented in the medical record \[i.e., tubal ligation, hysterectomy, or post-menopausal (defined as a minimum of one year since the last menstrual period)\]; in these circumstances, a pregnancy test will not be necessary

Exclusion Criteria

History of complicated/obstructive diverticular disease 2. History of intestinal or colonic obstruction, or suspected intestinal obstruction.

3\. History of significant gastrointestinal disorder, including any form of inflammatory bowel disease or gastrointestinal malignancy (celiac disease is accepted if the subject has been treated and is in remission) 4. History of gastroparesis 5. Use of any of the following medications:

* Medications that may affect intestinal motility, prokinetics, anti-Parkinsonian medications, opiates, opioids, calcium-channel blockers, aluminum/magnesium hydroxide
* With the exception of antidepressants, thyroid or hormonal replacement therapy, when the subject has been on a stable dose for at least 3 months prior to enrollment.

6\. Clinical evidence of significant respiratory, cardiovascular, renal, hepatic, biliary, endocrine, psychiatric or neurologic disease 7. Presence of cardiac pacemaker or gastric electrical stimulator. 8. History of, or current eating disorders, such as anorexia, bulimia, or compulsory overeating.

9\. Diagnosis of mega-rectum or colon, congenital anorectal malformation, clinically significant rectocele, history of intestinal resection (with an exception for appendectomy, cholecystectomy and inguinal hernia repair), history of bariatric surgery or evidence of any structural abnormality of the gastrointestinal tract that might affect transit 10. History of Zenker's diverticulum, dysphagia, Barrett's esophagus, esophageal stricture or achalasia 11. Chronic use of non-steroidal anti-inflammatory drugs (NSAIDs): chronic use is defined as taking full dose NSAIDs more than three times a week for at least six months. Subjects on cardiac doses of aspirin may be enrolled in the study 12. Subjects with pelvic floor dysfunction/defecatory disorder, based on subject history 13. Participation in another clinical study within one month prior to screening.

14\. Women who are pregnant or lactating 15. Use of any medication for constipation relief during the study, except as rescue medication, as indicated by study rules 16. Inability to use an electronic daily Diary (on a computer, phone application, tablet or other electronic device) to report bowel movements, symptoms and medication usage 17. Subject participated in a previous Vibrant study 18. Subjects planning to undergo MRI during the study 19. Any known allergy to soybean or beeswax or Calcium Carbonate 20. Any other condition which in the opinion of the investigator may adversely affect the safety of the subject or would limit the subject's ability to complete the study

Minimum Eligible Age

22 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No