Condition category
Digestive System
Date applied
12/07/2017
Date assigned
29/08/2017
Last edited
29/08/2017
Prospective/Retrospective
Retrospectively registered
Overall trial status
Completed
Recruitment status
No longer recruiting

Plain English Summary

Background and study aims
Treatment options for functional constipation (FC) other than laxatives are limited. It would be therefore be useful to determine the effectiveness of other treatment options for FC that may be more widely accessible. Many subjects enquire about self-help measures, such as probiotics (live bacteria and yeasts that are good for the digestive system) to reduce the impact of FC, but at present evidence with probiotics to this end are limited. The aim of this study is to determine if consumption of probiotic dairy drink improves defecation frequency, stool consistency, bowel transit time and constipation severity compared with placebo.

Who can participate?
Men and non-pregnant women aged from 18 to 70 years who had a fewer defecations than 3 per week and were diagnosed as FC.

What does the study involve?
Participants are randomly allocated to one of two groups. Those in the first group receive either one bottle (á 65ml) of fermented milk drink containing probiotic strain to drink each day for 12 weeks. Those in the second group receive a placebo (acidified milk drink without any bacteria strains) for 12 weeks. Participants attend study visits at gastroenterologist two weeks before the start, at the start of study, then four and eight weeks after, at the end of intervention, and 4 weeks after. Participants complete quality of life and symptom questionnaires at each visit. They undergo abdominal x-ray test at the start and the end of intervention to evaluate bowel transit time. Blood and urine samples are collected before and end of the intervention for standard safety analyses. Participants keep a daily diary to record bowel movements, laxative use and food record throughout the study period.

What are the possible benefits and risks of participating?
There are no direct benefits or risks with participating.

Where is the study run from?
This study is being run by the Istituto Clinico Humanitas (Italy) and four other sites in Italy.

When is the study starting and how long is it expected to run for?
June 2012 to August 2017

Who is funding the study?
Yakult Honsha Co., Ltd. (Japan)

Who is the main contact?
Mr Cesare Mutti

Trial website

Contact information

Type

Public

Primary contact

Mr Cesare Mutti

ORCID ID

Contact details

Sprim Advanced Life Sciences GCP S.r.l.
Via Brisa 3
Milano
20123
Italy

Additional identifiers

EudraCT number

ClinicalTrials.gov number

Protocol/serial number

13IT-1-SPRIM-CON1

Study information

Scientific title

A double blind, randomized, controlled trial to evaluate the effects of the consumption of a fermented milk drink on bowel function in adults

Acronym

Study hypothesis

The aim of this study is to determine if consumption of fermented milk drink containing a probiotic strain improves bowel movement frequency in adults with functional constipation (FC), as determined via the change in the numbers of complete spontaneous bowel movements (CSBMs) during consumption for 12 weeks.

Ethics approval

Ethic Committee IRCSS Istituto Clinico Humanitas, 25/07/2014, ref: Prot. Nr. CE Humanitas ex D.M. 8/2/2013 - 246/2014

Study design

Interventional multicentre randomised double-blind placebo-controlled trial

Primary study design

Interventional

Secondary study design

Randomised parallel trial

Trial setting

Hospitals

Trial type

Quality of life

Patient information sheet

Not available in web format, please use the contact details below to request a patient information sheet

Condition

Gastrointestinal-Functional Constipation

Intervention

Participants are randomly allocated to receive either one bottle (á 65ml) of fermented milk drink containing probiotic strain per day or placebo (acidified milk drink without any bacteria strains) for 12 weeks. Randomisation is done per study centre using Latin-square design, using gender and the number of CSBMs at week -1 as determining factor.

Participants attend study visits at gastroenterologist in two weeks before the start, at the start of intervention, then 4 and 8 weeks after, at the end of intervention, and four weeks after. Participants complete quality of life and symptom questionnaires at each visit. They undergo abdominal x-ray test at the start and the end of intervention to evaluate bowel transit time. Blood and urine samples are collected before and end of the intervention for standard safety analyses. Participants keep a daily diary to record bowel movements, laxative use and food record throughout the study period.

Intervention type

Supplement

Phase

Drug names

Primary outcome measures

Number of CSBMs is measured using patient daily diary at week one, two, three, four, five, six, seven, eight, nine, ten, 11 and 12.

Secondary outcome measures

1. Number of spontaneous bowel movements (SBMs) per person is measured using daily diary at Week one, two, three, four, five, six, seven, eight, nine, ten, 11 and 12
2. Number of participants with at least one CSBM improvement per week is measured using daily diary at Week one, two, three, four, five, six, seven, eight, nine, ten, 11 and 12
3. Number of SBMs per person is measured using daily diary at Week 12, and compared with the number at the baseline (Week -1)
Absolute weekly SBM counts are measured using daily diary at Week one, two, three, four, five, six, seven, eight, nine, ten, 11 and 12
4. Number of patients with at least one SBM improvement per week is measured using daily diary at Week one, two, three, four, five, six, seven, eight, nine, ten, 11 and 12
5. Number of participants with at least three CSBMs per week is measured using daily diary at Week one, two, three, four, five, six, seven, eight, nine, ten, 11 and 12
6. Number of participants with at least three SBMs per week is measured using daily diary at Week one, two, three, four, five, six, seven, eight, nine, ten, 11 and 12
7. Number of persons having at least an increase of +1 CSBM for at least 6 weeks during the 12 weeks is measured using daily diary at Week one, two, three, four, five, six, seven, eight, nine, ten, 11 and 12
8. Stool form is measured using Bristol Stool Scale Form in the daily diary at Week one, two, three, four, five, six, seven, eight, nine, ten, 11 and 12
9. Abdominal transit time is measured using radio opaque markers at Week zero (at start of the intervention) and Week 12
10. Number of participants who used laxatives once or more during the intervention is measured using daily diary at Week one, two, three, four, five, six, seven, eight, nine, ten, 11 and 12
11. Frequency of using laxatives is measured using daily diary at Week one, two, three, four, five, six, seven, eight, nine, ten, 11 and 12
Tertiary Endpoints:
I. Change in constipation symptoms measured by PAC-SYM questionnaire during the intervention.
II. Change in quality of life measured by PAC-QOL questionnaire during the intervention.

Overall trial start date

22/06/2012

Overall trial end date

03/08/2017

Reason abandoned

Eligibility

Participant inclusion criteria

1. Males and non- pregnant females aged from 18 to 70 years
2. Body mass index (BMI) >18.0 and <30 kg/m2
3. Diagnosed as a subgroup of functional constipation, fulfilling Rome III criteria for functional constipation and have a defecation frequency of <3 SBMs per week with a diagnosis of >3 months and with symptom onset at least 6 months before diagnosis at the screening visit V0. Subjects are required to have BM frequency <3 CSBMs per week at the baseline visit V1 during the 2 weeks before randomization.
4. Agree to avoid using any laxative during the baseline period and the study period except in the case the investigator allows him/her to have rescue medication
5. No use of laxatives within 15 days before baseline
6. No consumption of forbidden foods in the previous 30 days before V0 (according to the list of forbidden foods A)
7. Ability of the participant (in the investigator’s opinion) to comprehend the full nature and purpose of the study including possible risks and side effects
8. Consent to the study and willing to comply with study product and method
9. Agree not to alter their diet in any way for the duration of the trial and to maintain it at steady state (according to the forbidden food list) and not to make any major lifestyle changes (e.g. changing their exercise pattern) during the trial

Participant type

Patient

Age group

Adult

Gender

Both

Target number of participants

100

Participant exclusion criteria

1. Neurological, pharmacological or organic cause for constipation
2. Subjects with 3 or more CSBMs at week -2 or at week -1
3. Habitual users of laxatives, since 3 months before enrolment
4. Major neurological disease or injury (e.g. Multiple sclerosis, Spinal Cord Injury - SCI)
5. Major gastrointestinal complication (e.g. Crohn’s disease, colitis, celiac disease, lactose intolerance and allergy to cow-milk proteins).
6. Febrile diverticulitis within 1 year before enrolment
7. Prior abdominal surgery of the following type: gastric bypass, lap band, colectomy, except appendectomy, haemorrhoidectomy and cholecystectomy
8. Any subject who on first assessment has symptoms requiring urgent medical assessment or treatment (e.g. rectal bleeding which requires endoscopy)
9. Any subject that present abdominal pain as a predominant symptom
10. Any subject that need manual maneuvers (digital insertion into the rectum, perianal pressure or vaginal splinting) to evacuate stools.
11. Any subject presenting a condition that constitutes a contraindication to probiotics (e.g. immunosuppressed, active current sepsis, untreated carcinoma)
12. Any subject presenting any alarm symptoms or situation requiring as a recommended test a colonoscopy (according to WGO Global Guideline Constipation 8, World Gastroenterology Organization, 2010)
13. Pregnancy and expected pregnancy within coming 18 weeks
14. Antibiotic use in the previous 12 weeks
15. Use of drugs or alimentary supplements known to cause constipation
16. Subjects who do not have the capacity to consent
17. Anticipated major dietary or exercise changes during the study period
18. Subjects known to exceed in the consumption of the following foods, for example due to dietary reasons: yogurt, cheese, soy/rice or other products only containing L. bulgaricus and S. thermophilus as viable bacteria; fermented milks, cheese, soy/rice products and other dairy/non-dairy products containing unknown viable bacteria or different from probiotic bacteria; foods naturally rich in prebiotics
19. Known allergies to any substance in the study product
20. Eating disorder (anorexia, bulimia, binge eating disorder, obesity)
21. History of alcohol, drug or medication abuse
22. Participation in another study with any investigational product within 3 months before enrolment
23. Investigator believes that the participant may be uncooperative and/or noncompliant and should therefore not participate in the study

Recruitment start date

17/11/2014

Recruitment end date

13/04/2017

Locations

Countries of recruitment

Italy

Trial participating centre

Istituto Clinico Humanitas
Via Manzoni 56
Milano
20089
Italy

Trial participating centre

Fondazione IRCCS – Policlinico San Matteo
Viale Camillo Golgi 19
Pavia
27100
Italy

Trial participating centre

A.O. Spedali Civili di Brescia
Piazzale Spedali Civili 1
Brescia
25123
Italy

Trial participating centre

Az. Ospedaliera per l’Emergenza Cannizzaro
Via Messina 829
Catania
95126
Italy

Trial participating centre

A.U.O. Policlinico G. Martino
Via Consolare Valeria 1
Messina
98125
Italy

Sponsor information

Organisation

Yakult Honsha Co. Ltd

Sponsor details

1-1-19 Higashi-Shinbashi
Minato-ku
Tokyo
105-8660
Japan

Sponsor type

Industry

Website

http://www.yakult.co.jp

Funders

Funder type

Other

Funder name

Yakult Honsha Co. Ltd

Alternative name(s)

Funding Body Type

Funding Body Subtype

Location

Results and Publications

Publication and dissemination plan

Planned publication in a high-impact peer reviewed journal.

IPD sharing statement:
The datasets generated during and/or analysed during the current study is not expected to be made available due to at the start of the trial project in 2012 it was not planned to make the raw data available and the Informed Consent Form was not designed for it either. Therefore some additional arrangements are needed to make the datasets, which will be held by the Sponsor, available. If there is the necessity and on reasonable request, however, we would consider about it. Electronic records of subjects Clinical Study Data is User Privileged and password protected EDC Platform in accordance with USFDA 21 CFR Part 11 guidelines. Final Dataset will be arranged in SAS file.

Intention to publish date

31/08/2018

Participant level data

Not expected to be available

Results - basic reporting

Publication summary

Publication citations

Additional files

Editorial Notes