NCT04169789

Brief Summary

This study evaluates the effect of two different doses of Lactobacillus reuteri ATCC PTA 6475 (L.reuteri 6475) on bone loss in early postmenopausal women. One third of the participants will be randomised to the lower dose, one third to the higher dose and one third to placebo.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
239

participants targeted

Target at P75+ for not_applicable

Timeline
Completed

Started Dec 2019

Typical duration for not_applicable

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 18, 2019

Completed
2 days until next milestone

First Posted

Study publicly available on registry

November 20, 2019

Completed
14 days until next milestone

Study Start

First participant enrolled

December 4, 2019

Completed
2.9 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

October 18, 2022

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

October 18, 2022

Completed
Last Updated

February 6, 2023

Status Verified

February 1, 2023

Enrollment Period

2.9 years

First QC Date

November 18, 2019

Last Update Submit

February 3, 2023

Conditions

Outcome Measures

Primary Outcomes (1)

  • Total tibia volumetric bone mineral density

    Measured using high resolution peripheral computed tomography (HRpQCT), relative change 0-24 months

    24 months

Secondary Outcomes (12)

  • Areal bone mineral density (aBMD) at the lumbar spine

    24 months

  • Areal BMD of the total hip (DXA)

    0-24 months and 0-12 months

  • Tibia trabecular bone volume fraction

    0-24 months and 0-12 months

  • Tibia cortical area

    0-24 months and 0-12 months

  • Tibia cortical volumetric BMD

    0-24 months and 0-12 months

  • +7 more secondary outcomes

Study Arms (3)

L. reuteri Low Dose

ACTIVE COMPARATOR

Capsules of freeze-dried L. reuteri 6475 of 5x10E8 colony-forming units (CFU) mixed with maltodextrin powder and 200 IU of cholecalciferol, taken twice daily for 24 months, yielding a total dose of either 1x10E9 L.reuteri CFU and 400 IU of cholecalciferol per day.

Dietary Supplement: Lactobacillus reuteri ATCC PTA 6475 (L. reuteri 6475)

L. reuteri High Dose

ACTIVE COMPARATOR

Capsules of freeze-dried L. reuteri 6475 of 5x10E9 colony-forming units (CFU) mixed with maltodextrin powder and 200 IU of cholecalciferol, taken twice daily for 24 months, yielding a total daily dose of 1x10E10 L.reuteri CFU and 400 IU of cholecalciferol per day.

Dietary Supplement: Lactobacillus reuteri ATCC PTA 6475 (L. reuteri 6475)

Placebo

PLACEBO COMPARATOR

Placebo product identical to the active product (L. reuteri) in taste and appearance but without the active component, orally twice daily, for 24 months.The placebo product contains 200 IU cholecalciferol per dose, yielding a total dose of cholecalciferol of 400 IU per day.

Dietary Supplement: Lactobacillus reuteri ATCC PTA 6475 (L. reuteri 6475)

Interventions

L.reuteri high or low dose with cholecalciferol compared to cholecalciferol only.

L. reuteri High DoseL. reuteri Low DosePlacebo

Eligibility Criteria

Age45 Years+
Sexfemale
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Postmenopausal women, 45 years or older, within 1-4 years from their last menses.
  • Vitamin D levels above 25 nmol/L.
  • Signed informed consent.
  • Stated availability throughout the entire study period.
  • Ability to understand study instructions and willingness to adhere to the protocol.

You may not qualify if:

  • Bone mineral density of \< -2.5 combined with a fracture risk assessment tool (FRAX) score of 20% or higher for major osteoporotic fracture.
  • Severe osteoporosis, defined as bone mineral density of \< -3.0 in either the total hip, femur neck or lumbar spine L1-L4.
  • Vertebral fracture (grade II or III) diagnosed using lateral spine imaging with DXA.
  • Untreated hyperthyroidism or hyperthyroidism within the last 5 years.
  • Known untreated hyperparathyroidism.
  • Rheumatoid arthritis.
  • Diagnosed with disease causing secondary osteoporosis, including chronic obstructive pulmonary disease, inflammatory bowel disease, celiac disease, or diabetes mellitus.
  • Recently diagnosed malignancy (within the last 5 years).
  • Oral corticosteroid use.
  • Previous (within the last 5 years) use of antiresorptive therapy, including systemic hormone therapy (estrogen), bisphosphonates, strontium ranelate or denosumab.
  • Systemic skeletal disease (including e.g. Paget's disease and osteogenesis imperfecta).
  • Any systemic disease that could affect bone loss, as judged by the investigator.
  • Use of teriparatide (current or during the last 3 years).
  • Participation in other clinical trials.
  • Current and within the past 2 months use of probiotic supplement
  • +3 more criteria

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Geriatric Medicine, Sahlgrenska University Hospital, Mölndal

Gothenburg, Västra Götaland County, 43180, Sweden

Location

Related Publications (2)

  • Nilsson AG, Sundh D, Backhed F, Lorentzon M. Lactobacillus reuteri reduces bone loss in older women with low bone mineral density: a randomized, placebo-controlled, double-blind, clinical trial. J Intern Med. 2018 Sep;284(3):307-317. doi: 10.1111/joim.12805. Epub 2018 Jul 22.

    PMID: 29926979BACKGROUND
  • Gregori G, Pivodic A, Magnusson P, Johansson L, Hjertonsson U, Brattemark E, Lorentzon M. Limosilactobacillus reuteri 6475 and Prevention of Early Postmenopausal Bone Loss: A Randomized Clinical Trial. JAMA Netw Open. 2024 Jun 3;7(6):e2415455. doi: 10.1001/jamanetworkopen.2024.15455.

MeSH Terms

Conditions

Osteoporosis, Postmenopausal

Condition Hierarchy (Ancestors)

OsteoporosisBone Diseases, MetabolicBone DiseasesMusculoskeletal DiseasesMetabolic DiseasesNutritional and Metabolic Diseases

Study Officials

  • Mattias Lorentzon, MD, PhD

    Sahlgrenska University Hospital

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
QUADRUPLE
Who Masked
PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Professor, Chief Physician

Study Record Dates

First Submitted

November 18, 2019

First Posted

November 20, 2019

Study Start

December 4, 2019

Primary Completion

October 18, 2022

Study Completion

October 18, 2022

Last Updated

February 6, 2023

Record last verified: 2023-02

Data Sharing

IPD Sharing
Will not share

Locations