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The effects of bifidobacterium lactis strain NT and effects of addition to galacto-oligosaccharide on defecation frequency in healthy subjects with low defecation frequency: a randomized, double-blind, placebo-controled, parallel-group trial

The effects of bifidobacterium lactis strain NT and effects of addition to galacto-oligosaccharide on defecation frequency in healthy subjects with low defecation frequency: a randomized, double-blind, placebo-controled, parallel-group trial - The effects of bifidobacterium lactis strain NT and effects of addition to galacto-oligosaccharide on defecation frequency in healthy subjects with low defecation frequency: a randomized, double-blind, placebo-controled, parallel-group trial

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
JPRN
Registry ID
JPRN-UMIN000033185
Enrollment
69
Registered
2018-07-01
Start date
2018-07-01
Completion date
Unknown
Last updated
2026-06-29

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Subjects who have a tendency to be constipated

Interventions

Take four capsules containing Bifidobacterium lactis a day Take four capsules containing Bifidobacterium lactis and galact-oligo saccaride a day Take four placebo capsules a day

Sponsors

Second Lecture of Internal Medicine, Wakayama Medical University School of Medicine
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: 1. Adult male and female from 20 to 60 years old 2. Subjects whose stool frequency is twice or three times per week 3. Subjects who can obtain written consent about the participation of this research

Exclusion criteria

Exclusion criteria: 1. Subjects diagnosed with constipation or subjects who fit the Rome IV criteria in the interview 2. Subjects who have the history of organic disease in the gastrointestinal tract in the past and present 3. Subjects who diagnosed as kidney disease 4. Subjects who diagnosed as diabetes 5. Subjects who diagnosed with hypothyroidism 6. Subjects who diagnosed with inflammatory disease 7. Subjects who diagnosed with neurological or psychiatric disease 8. Subjects who took antibiotics or probiotics within the past 1 month including present 9. Subjects who take the drugs inducing chronic constipation 10. Subjects who use biological drugs and steroids 11. Subject who take the foods containing lactic acid bacteria or bifidus bacteria routinely 12. Subject who take the health food for constipation improvement routinely 13. Subjects who have a history of allergy to the foods containing lactobacillus or bifidus bacteria 14. Subjects who participating in other clinical tests about food containing probiotics, or who have not been past one month since participation 15. Subjects who cannot stop the use of constipation drugs and that of foods for constipation improvement during the research period 16. Subjects who will travel overseas during the research period 17. Subjects who investigator judge not suitable to participate in the trial

Design outcomes

Primary

MeasureTime frame
Frequency of spontaneous bowel movements during the second week of the administration period

Secondary

MeasureTime frame
1. Spontaneous stool frequency during the first week of the administration period 2. The difference of spontaneous stool frequency between the period of first week of the administration period and the period of second week of the observation period 3. The difference of spontaneous stool frequency between the period of second week of the administration period and the period of second week of the observation period 4. Spontaneous stool frequency during the first or second week of the observation period 5. Spontaneous stool frequency without feeling of incomplete evacuation during the first week of the administration period 6. Spontaneous stool frequency without feeling of incomplete evacuation during the second week of the administration period 7. Spontaneous stool frequency without feeling of incomplete evacuation during the first week of the observation period 8. Spontaneous stool frequency without feeling of incomplete evacuation during the second week of the observation period 9. The difference of spontaneous stool frequency between the administration period and the observation period 10. The difference of days when subjects defecate between the administration period and the observation period 11. The difference of average on Bristol stool form scale between the administration period and the observation period 12. The difference of score about straining during bowel movement 13. The difference of score about pain during bowel movement 14. The difference of score about incomplete bowel movement 15. The difference of score at each question of PAC-SYM 16. The ratios of subjects whose scores of PAC-SYM was decreased by more than 0.5 or 1 before and after the administration period 17. The ratio of nonresponder to test food about the effect of constipation improvement 18. The difference of each nutrient calculated by BDHQ between responder and nonresponder in entire or each group 19. The difference of score about stool color before and after the administration period

Countries

Japan

Contacts

Public ContactYuta Yamamoto

Wakayama Medical University, School of Medicine Department of Anatomy and Cell Biology

yuta-y@wakayama-med.ac.jp073-441-0616

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 3, 2026