NCT04030780

Brief Summary

Single-site prospective interventional study aiming to demonstrate the effect of spore-forming probiotics on dyspeptic symptoms and blood, saliva and stool parameters in FD patients with and without acid suppression, compared to placebo.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
60

participants targeted

Target at P25-P50 for not_applicable

Timeline
Completed

Started Jun 2019

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

June 3, 2019

Completed
Same day until next milestone

Study Start

First participant enrolled

June 3, 2019

Completed
2 months until next milestone

First Posted

Study publicly available on registry

July 24, 2019

Completed
12 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

July 7, 2020

Completed
6 months until next milestone

Study Completion

Last participant's last visit for all outcomes

December 31, 2020

Completed
Last Updated

February 16, 2021

Status Verified

July 1, 2020

Enrollment Period

1.1 years

First QC Date

June 3, 2019

Last Update Submit

February 15, 2021

Conditions

Keywords

spore-forming probioticsporebioticproton pump inhibitordyspepsia

Outcome Measures

Primary Outcomes (1)

  • Proportion of clinical responders (first 8 weeks) in sporebiotics vs. placebo

    The Leuven Postprandial Distress Scale (LPDS) is a daily diary assessing the severity of 11 upper gastrointestinal symptoms scored from 0 (none) to 4 (very severe). A difference of 0.7 from baseline for the cardinal PDS symptoms (average of first 3 questions) will be used as a cut-off to determine clinical response by comparing averaged pre-treatment scores with the average score during the last week on treatment with sporebiotics vs. placebo. Only subjects with baseline score \>1 (mild) will be included in the intention-to-treat and per-protocol analysis.

    8 weeks

Secondary Outcomes (14)

  • Proportion of minimal clinical responders (first 8 weeks) in sporebiotics vs. placebo

    8 weeks

  • Change in weekly PDS symptoms from baseline (first 8 weeks) on sporebiotics vs. placebo and changes within-groups

    8 weeks

  • Change in weekly EPS symptoms from baseline (first 8 weeks) on sporebiotics vs. placebo and changes within-groups

    8 weeks

  • Change in weekly individual symptoms from baseline (first 8 weeks) on sporebiotics vs. placebo and changes within-groups

    8 weeks

  • Proportion of (minimal) clinical responders (3 of the last 4 weeks of treatment) in sporebiotics vs. placebo

    8 weeks

  • +9 more secondary outcomes

Study Arms (4)

Cohort 1FD (on-PPI+sporebiotics)

ACTIVE COMPARATOR

study procedures at inclusion (1) and after 8 weeks on-PPI+ sporebiotics (2) followed by 8 weeks on-PPI+ sporebiotics (open label)

Dietary Supplement: spore-forming probiotic

Cohort 1FD (on-PPI+placebo)

PLACEBO COMPARATOR

study procedures at inclusion (1) and after 8 weeks on-PPI+ placebo (2) followed by 8 weeks on-PPI+ sporebiotics (open label)

Other: Placebo

Cohort 2FD (off-PPI+sporebiotics)

ACTIVE COMPARATOR

study procedures at inclusion (1) and after 8 weeks of sporebiotics (2) followed by 8 weeks of sporebiotics (open label)

Dietary Supplement: spore-forming probiotic

Cohort 2FD (off-PPI+placebo)

PLACEBO COMPARATOR

study procedures at inclusion (1) and after 8 weeks of placebo (2) followed by 8 weeks of sporebiotics (open label)

Other: Placebo

Interventions

spore-forming probioticDIETARY_SUPPLEMENT

spore-forming probiotic administered as 1 capsule twice daily (2,5 x 109 CFU per capsule) during 8 weeks

Cohort 1FD (on-PPI+sporebiotics)Cohort 2FD (off-PPI+sporebiotics)
PlaceboOTHER

similar capsules administered twice daily

Cohort 1FD (on-PPI+placebo)Cohort 2FD (off-PPI+placebo)

Eligibility Criteria

Age18 Years - 99 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Patients \>18 years with FD diagnosis (Rome IV criteria)
  • Male or female (not pregnant or lactating and using contraception or postmenopausal)
  • Normal bowel habits (defecation once every 3 days up to 3 times a day)
  • Witnessed written informed consent
  • Access to home freezer (-18 to -20°C)
  • Capable to understand and comply with the study requirements

You may not qualify if:

  • Any active somatic or psychiatric condition that may explain dyspeptic symptoms (stable dose of single antidepressant allowed for psychiatric indication, no limitation for other indications)
  • Predominant symptoms of gastro-esophageal reflux disease (GERD) or irritable bowel syndrome (IBS)
  • Use of immunosuppressants or antibiotics \<3 months
  • History of major abdominal surgery (except for appendectomy, cholecystectomy or splenectomy)
  • Personal history of diabetes mellitus type 1, celiac disease or inflammatory bowel disease
  • Diabetes mellitus type 2 (including therapy)
  • Active malignancy (including therapy)
  • Known HIV, HBV or HCV infection (including therapy)
  • Significant alcohol use (\>10 units/weeks)

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

UZ Leuven

Leuven, 3000, Belgium

Location

Related Publications (1)

  • Wauters L, Slaets H, De Paepe K, Ceulemans M, Wetzels S, Geboers K, Toth J, Thys W, Dybajlo R, Walgraeve D, Biessen E, Verbeke K, Tack J, Van de Wiele T, Hellings N, Vanuytsel T. Efficacy and safety of spore-forming probiotics in the treatment of functional dyspepsia: a pilot randomised, double-blind, placebo-controlled trial. Lancet Gastroenterol Hepatol. 2021 Oct;6(10):784-792. doi: 10.1016/S2468-1253(21)00226-0. Epub 2021 Aug 3.

MeSH Terms

Conditions

DyspepsiaDysbiosis

Condition Hierarchy (Ancestors)

Signs and Symptoms, DigestiveSigns and SymptomsPathological Conditions, Signs and SymptomsPathologic Processes

Study Officials

  • Tim Vanuytsel, MD PhD

    Universitaire Ziekenhuizen KU Leuven

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
QUADRUPLE
Who Masked
PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
Masking Details
participants, care providers, investigators and outcomes assessor are blinded during the randomized placebo-controlled phase (8 weeks) but not during the open-label extension phase (8 weeks)
Purpose
TREATMENT
Intervention Model
PARALLEL
Model Details: randomized placebo-controlled study in 2 parallel FD cohorts
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

June 3, 2019

First Posted

July 24, 2019

Study Start

June 3, 2019

Primary Completion

July 7, 2020

Study Completion

December 31, 2020

Last Updated

February 16, 2021

Record last verified: 2020-07

Data Sharing

IPD Sharing
Will not share

Locations