NCT04167475

Brief Summary

The aim of this study is to evaluate the effect of supplementation with the B. longum 1714™ strain on subjective and objective sleep quality in healthy participants.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
89

participants targeted

Target at P50-P75 for phase_2

Timeline
Completed

Started Jan 2020

Shorter than P25 for phase_2

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

November 15, 2019

Completed
3 days until next milestone

First Posted

Study publicly available on registry

November 18, 2019

Completed
2 months until next milestone

Study Start

First participant enrolled

January 6, 2020

Completed
3 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

April 3, 2020

Completed
3 months until next milestone

Study Completion

Last participant's last visit for all outcomes

June 23, 2020

Completed
Last Updated

June 30, 2020

Status Verified

June 1, 2020

Enrollment Period

3 months

First QC Date

November 15, 2019

Last Update Submit

June 29, 2020

Conditions

Keywords

Bifidobacterium longum 1714™probioticsleep qualityPSQIactigraphysleep latencysleep efficiency

Outcome Measures

Primary Outcomes (1)

  • Change in subjective sleep quality, assessed by Pittsburgh Sleep Quality Index global score

    Minimum score is 0, maximum score is 21. Higher scores indicate worse sleep quality.

    Change from baseline, assessed at 4 and 8 weeks of supplement intake

Secondary Outcomes (7)

  • Change in objective sleep quality, specifically sleep latency

    Change from baseline, assessed at 4 and 8 weeks of supplement intake

  • Change in objective sleep quality, specifically sleep efficiency

    Change from baseline, assessed at 4 and 8 weeks of supplement intake

  • Change in objective sleep quality, specifically wake episodes

    Change from baseline, assessed at 4 and 8 weeks of supplement intake

  • Change in objective sleep quality, specifically wake time after sleep onset (WASO)

    Change from baseline, assessed at 4 and 8 weeks of supplement intake

  • Change in subjectively reported sleep quality, sleep latency, and sleep efficiency

    Change from baseline, assessed at 4 and 8 weeks of supplement intake

  • +2 more secondary outcomes

Study Arms (2)

Probiotic capsule

EXPERIMENTAL

The participants consume one probiotic capsule a day for 8 weeks

Dietary Supplement: Probiotic capsule

Placebo capsule

PLACEBO COMPARATOR

The participants consume one placebo capsule a day for 8 weeks

Dietary Supplement: Placebo capsule

Interventions

Probiotic capsuleDIETARY_SUPPLEMENT

Each probiotic capsule contains 1 x 10\^9 CFU B. longum 1714™ with corn starch and magnesium stearate. The probiotic capsules will be supplied by PrecisionBiotics Ltd.

Probiotic capsule
Placebo capsuleDIETARY_SUPPLEMENT

Each placebo capsule contains corn starch and magnesium stearate. The placebo capsules will be supplied by PrecisionBiotics Ltd.

Placebo capsule

Eligibility Criteria

Age18 Years - 45 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64)

You may qualify if:

  • Provide written informed consent
  • Age: 18 to 45 years of age
  • BMI \< 29.9 kg/m2
  • Be willing to refrain from taking any dietary supplements or other fermented foods that contain live bacteria during the study
  • Be willing to refrain from taking any medications or preparations to improve sleep (herbal, dietary supplements, homeopathic preparations, etc.) during the study
  • If using products that contain nicotine or caffeine, agrees to continue current usage levels throughout the length of the study
  • Agrees not to undertake air travel exceeding two time zones during the period of the study
  • PSQI score of 5 and above
  • HADS-A and HADS-D score of 14 and below
  • ISI score below 11
  • Be willing to maintain stable dietary habits and physical activity levels throughout the study period
  • Be able to communicate well with the Investigator, to understand and comply with the requirements of the study and be judged suitable for the study in the opinion of the Investigator

You may not qualify if:

  • Less than 18 or older than 45 years of age at the time of consent
  • Use of dietary supplements or other fermented foods that contain live bacteria
  • Participant who has been on antibiotics during the past 3 months
  • Participant with a malignant disease or any concomitant end-state organ disease and/or laboratory abnormalities considered by Investigators to be risky or that could interfere with data collection
  • Participant who has a significant acute or chronic coexisting illness \[cardiovascular, history of co-existing gastrointestinal, and/or gynaecological, and/or urologic pathology (e.g. colon cancer, colitis, Crohn's, celiac, IBS, endometriosis, prostate cancer) or lactose intolerance
  • Participant with inflammatory disorders (e.g. chronic fatigue syndrome, psoriasis, rheumatoid arthritis or any other inflammatory arthropathies)
  • Psychiatric diagnosis other than anxiety or depression
  • Participant who is severely immunocompromised (HIV positive, transplant patient, on antirejection medications, on a steroid for \>30 days, or chemotherapy or radiotherapy within the last year)
  • Participants who are on anxiolytics, anti-depressants, antipsychotics, anticonvulsants, centrally acting corticosteroids, opioid pain relievers, hypnotics, and/or prescribed sleep medication/ herbals (e.g. valerian)
  • Combined SF36 score of greater than +2 SD from the mean
  • Participants with a history of drug and /or alcohol abuse at the time of enrolment
  • Pregnant or lactating female, or pregnancy planned during study period
  • Participants who have undertaken air travel involving transit across two or more time zones in the month previous to the study
  • Participants who are shift workers
  • Participants with sleep disorders diagnosed by a physician such as sleep apnoea;
  • +4 more criteria

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Atlantia Food Clinical Trials Ltd.

Cork, Ireland

Location

Related Publications (1)

  • Patterson E, Tan HTT, Groeger D, Andrews M, Buckley M, Murphy EF, Groeger JA. Bifidobacterium longum 1714 improves sleep quality and aspects of well-being in healthy adults: a randomized, double-blind, placebo-controlled clinical trial. Sci Rep. 2024 Feb 14;14(1):3725. doi: 10.1038/s41598-024-53810-w.

MeSH Terms

Conditions

Sleep Initiation and Maintenance Disorders

Interventions

Probiotics

Condition Hierarchy (Ancestors)

Sleep Disorders, IntrinsicDyssomniasSleep Wake DisordersNervous System DiseasesMental Disorders

Intervention Hierarchy (Ancestors)

Dietary SupplementsFoodDiet, Food, and NutritionPhysiological PhenomenaFood and Beverages

Study Officials

  • Eileen Murphy, PhD

    PrecisionBiotics Group Ltd.

    STUDY DIRECTOR

Study Design

Study Type
interventional
Phase
phase 2
Allocation
RANDOMIZED
Masking
QUADRUPLE
Who Masked
PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
INDUSTRY
Responsible Party
SPONSOR

Study Record Dates

First Submitted

November 15, 2019

First Posted

November 18, 2019

Study Start

January 6, 2020

Primary Completion

April 3, 2020

Study Completion

June 23, 2020

Last Updated

June 30, 2020

Record last verified: 2020-06

Data Sharing

IPD Sharing
Will not share

Locations