NCT05607056

Brief Summary

The purpose of this study is to evaluate the efficacy of a probiotic, SINQUANON, on the reduction of the occurrence of diarrhea associated with antibiotic use in adults.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
565

participants targeted

Target at P75+ for not_applicable

Timeline
Completed

Started Nov 2022

Shorter than P25 for not_applicable

Geographic Reach
1 country

3 active sites

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

October 31, 2022

Completed
7 days until next milestone

First Posted

Study publicly available on registry

November 7, 2022

Completed
20 days until next milestone

Study Start

First participant enrolled

November 27, 2022

Completed
4 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

March 20, 2023

Completed
1 month until next milestone

Study Completion

Last participant's last visit for all outcomes

April 25, 2023

Completed
Last Updated

October 21, 2024

Status Verified

December 1, 2022

Enrollment Period

4 months

First QC Date

October 31, 2022

Last Update Submit

October 17, 2024

Conditions

Keywords

ProbioticsAntibioticsAntibiotic-associated diarrheaHigh-doseMultistrain

Outcome Measures

Primary Outcomes (1)

  • Incidence of Antibiotic-Associated diarrhea (AAD)

    The incidence of AAD is defined as the number of subjects who experience at least one day of diarrhea compared to the total number of subjects enrolled in the given treatment arm. AAD is defined as 3 or more loose or liquid stools (types 5-7 according to Bristol Stool Scale \[BSS\]) over a period of 24 hours.

    By 21+2 days after completion of antibiotic dosing.

Secondary Outcomes (5)

  • Severity of AAD

    By 21+2 days after completion of antibiotic dosing.

  • Duration of diarrhea

    By 21+2 days after completion of antibiotic dosing.

  • Antibiotic-associated adverse experiences (abdominal pain, bloating, passing gas, nausea)

    By 21+2 days after completion of antibiotic dosing.

  • Visual-analogue scale for the gastrointestinal quality of life (VAS-QoL)

    By 21+2 days after completion of antibiotic dosing.

  • Adverse events (AE)

    By 21+2 days after completion of antibiotic dosing.

Study Arms (2)

Probiotic

EXPERIMENTAL

During the antibiotic dosing (from 5 to 10 days): 2 capsules once a day 2 hours before or 2 hours after antibiotic administration. 14 days following completion of antibiotic dosing: 1 capsule a day.

Dietary Supplement: Sinquanon

Placebo

PLACEBO COMPARATOR

During the antibiotic dosing (from 5 to 10 days): 2 capsules once a day 2 hours before or 2 hours after antibiotic administration. 14 days following completion of antibiotic dosing: 1 capsule a day.

Dietary Supplement: Placebo

Interventions

SinquanonDIETARY_SUPPLEMENT

This probiotic food supplement includes fourteen probiotic bacterial strains of Lactobacillus Spp, Bifidobacterium Spp., Bacillus coagulans, Saccharomyces boulardii, three prebiotics and Vitamin-B complex - B1, B2, B3, B6, B7, B9 in an enterosolvent cellulose capsule. The product includes supplementary substances: maltodextrin and magnesium stearate. 2 capsules once a day during the antibiotic dosing. 1 capsule a day for 14 days following completion of antibiotic dosing.

Probiotic
PlaceboDIETARY_SUPPLEMENT

The placebo product will have the same appearance as the active product and the same composition but without the live bacteria, prebiotics, and vitamin-B complex. 2 capsules once a day during the antibiotic dosing. 1 capsule a day for 14 days following completion of antibiotic dosing.

Placebo

Eligibility Criteria

Age18 Years - 60 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64)

You may qualify if:

  • Male or female subject aged 18 to 60 years.
  • The subject has given written informed consent after being provided orally with information about the study objective and design, including the administration regimen of the studied probiotic and the study procedures, the available safety data, as well as the rights and obligations of a participant.
  • The subject initiates oral antibiotic treatment in the ambulatory setting.
  • Acceptable antibiotic therapy:
  • Broad-spectrum penicillins
  • Cephalosporins
  • Quinolones
  • Tetracyclines
  • Sequential administration of two antibiotics from the allowed groups is permitted, if the total duration of the antibiotic treatment does not exceed 10 days.
  • Planned duration of the antibiotic treatment of 5 to 10 days.
  • Body mass index (BMI) of 18.0 to 29.9 kg/m2
  • In the opinion of the Investigator, the subject can adhere to the visit schedule, to be compliant with the trial treatment regimen and to complete the study.
  • The patient has a smartphone and can use it.

You may not qualify if:

  • Antibiotics use within 60 days prior to randomization.
  • Daily consumption of probiotics, yogurt with probiotics and inability to stop this consumption.
  • Use of antidiarrheal medications, laxatives, enemas, or suppositories within 1 week prior to randomization and for the duration of the trial.
  • An episode of diarrhea within 30 days before screening, defined as ≥3 loose or liquid stools over 24 hours, regardless of the cause of the diarrhea.
  • Acute or chronic constipation - average number of formed stools \<3 per week.
  • Allergy or hypersensitivity to any of the ingredients of the trial product.
  • Allergy or hypersensitivity to the antibiotic prescribed on Day 1.
  • Prior documented infection with Clostridioides difficile ≤3 months before screening.
  • History of chronic gastrointestinal conditions, including irritable bowel syndrome, chronic constipation, chronic diarrhea, dyspepsia, gastroesophageal reflux disease, diverticulitis, ulcerative colitis, Crohn's disease or any other abnormality in the absorption or gastrointestinal dysfunction.
  • Use of proton-pump inhibitors (PPIs) within 30 days prior to Day 1 and for the duration of the study.
  • Surgery to the intestines, artificial heart valve, history of rheumatological heart disease or infectious endocarditis within one year prior to screening.
  • Immunosuppressive therapy or any condition causing immunosuppression (including hematologic malignancies, AIDS, long-lasting corticosteroid treatment).
  • Planned administration of antibiotics, different from those acceptable for the study.
  • Patients in severe condition requiring urgent hospitalization or planned hospitalization during the study.
  • Planned administration of antibiotics \>10 days.
  • +8 more criteria

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (3)

University Hospital "St George"

Plovdiv, 4002, Bulgaria

Location

University Hospital for Pulmonary Diseases " St. Sofia"

Sofia, 1431, Bulgaria

Location

University Hospital "Tsaritsa Yoanna - ISUL"

Sofia, 1527, Bulgaria

Location

Related Publications (11)

  • Konstantinidis T, Tsigalou C, Karvelas A, Stavropoulou E, Voidarou C, Bezirtzoglou E. Effects of Antibiotics upon the Gut Microbiome: A Review of the Literature. Biomedicines. 2020 Nov 16;8(11):502. doi: 10.3390/biomedicines8110502.

    PMID: 33207631BACKGROUND
  • Francino MP. Antibiotics and the Human Gut Microbiome: Dysbioses and Accumulation of Resistances. Front Microbiol. 2016 Jan 12;6:1543. doi: 10.3389/fmicb.2015.01543. eCollection 2015.

    PMID: 26793178BACKGROUND
  • Mekonnen SA, Merenstein D, Fraser CM, Marco ML. Molecular mechanisms of probiotic prevention of antibiotic-associated diarrhea. Curr Opin Biotechnol. 2020 Feb;61:226-234. doi: 10.1016/j.copbio.2020.01.005. Epub 2020 Feb 19.

    PMID: 32087535BACKGROUND
  • Barbut F, Meynard JL. Managing antibiotic associated diarrhoea. BMJ. 2002 Jun 8;324(7350):1345-6. doi: 10.1136/bmj.324.7350.1345. No abstract available.

    PMID: 12052785BACKGROUND
  • Szajewska H, Kolodziej M. Systematic review with meta-analysis: Lactobacillus rhamnosus GG in the prevention of antibiotic-associated diarrhoea in children and adults. Aliment Pharmacol Ther. 2015 Nov;42(10):1149-57. doi: 10.1111/apt.13404. Epub 2015 Sep 13.

    PMID: 26365389BACKGROUND
  • Szajewska H, Kolodziej M. Systematic review with meta-analysis: Saccharomyces boulardii in the prevention of antibiotic-associated diarrhoea. Aliment Pharmacol Ther. 2015 Oct;42(7):793-801. doi: 10.1111/apt.13344. Epub 2015 Jul 27.

    PMID: 26216624BACKGROUND
  • Ouwehand AC. A review of dose-responses of probiotics in human studies. Benef Microbes. 2017 Apr 26;8(2):143-151. doi: 10.3920/BM2016.0140. Epub 2016 Dec 23.

    PMID: 28008787BACKGROUND
  • Szajewska H, Canani RB, Guarino A, Hojsak I, Indrio F, Kolacek S, Orel R, Shamir R, Vandenplas Y, van Goudoever JB, Weizman Z; ESPGHAN Working Group for ProbioticsPrebiotics. Probiotics for the Prevention of Antibiotic-Associated Diarrhea in Children. J Pediatr Gastroenterol Nutr. 2016 Mar;62(3):495-506. doi: 10.1097/MPG.0000000000001081.

    PMID: 26756877BACKGROUND
  • Goldenberg JZ, Lytvyn L, Steurich J, Parkin P, Mahant S, Johnston BC. Probiotics for the prevention of pediatric antibiotic-associated diarrhea. Cochrane Database Syst Rev. 2015 Dec 22;(12):CD004827. doi: 10.1002/14651858.CD004827.pub4.

    PMID: 26695080BACKGROUND
  • Gao XW, Mubasher M, Fang CY, Reifer C, Miller LE. Dose-response efficacy of a proprietary probiotic formula of Lactobacillus acidophilus CL1285 and Lactobacillus casei LBC80R for antibiotic-associated diarrhea and Clostridium difficile-associated diarrhea prophylaxis in adult patients. Am J Gastroenterol. 2010 Jul;105(7):1636-41. doi: 10.1038/ajg.2010.11. Epub 2010 Feb 9.

    PMID: 20145608BACKGROUND
  • Hodzhev V, Dzhambazov K, Sapundziev N, Encheva M, Todorov S, Youroukova V, Benchev R, Nikolov R, Bogov B, Momekov G, Hadjiev V. High-dose Probiotic Mix of Lactobacillus spp., Bifidobacterium spp., Bacillus coagulans, and Saccharomyces boulardii to Prevent Antibiotic-associated Diarrhea in Adults: A Multicenter, Randomized, Double-blind, Placebo-controlled Trial (SPAADA). Open Forum Infect Dis. 2024 Oct 21;11(11):ofae615. doi: 10.1093/ofid/ofae615. eCollection 2024 Nov.

Study Officials

  • Georgi Momekov, Prof PhD

    Department of Pharmacology, Pharmacotherapy and Toxicology, Medical University of Sofia

    PRINCIPAL INVESTIGATOR
  • Karen Dzhambazov, Prof, PhD

    University hospital for active treatment Sveti Georgi, Medical University-Plovdiv

    PRINCIPAL INVESTIGATOR
  • Nikolay Sapundziev, Prof, PhD

    Department of Neurosurgery and Otorhinolaryngology, Medical University - Varna

    PRINCIPAL INVESTIGATOR
  • Milena Encheva, MD, PhD

    Military Medical Academy, Bulgaria

    PRINCIPAL INVESTIGATOR
  • Boris Bogov, Prof, PhD

    UMHAT "Sveta Anna"

    PRINCIPAL INVESTIGATOR
  • Rosen Nikolov, Prof, MD

    UMHAT St Ivan Rilski

    PRINCIPAL INVESTIGATOR
  • Rumen Benchev, Prof

    Hill Clinic

    PRINCIPAL INVESTIGATOR
  • Vladimir Hodzhev, Prof, PhD

    University Hospital "St George"

    PRINCIPAL INVESTIGATOR
  • Spiridon Todorov, Prof, PhD

    University Hospital "Tsaritsa Yoanna - ISUL"

    PRINCIPAL INVESTIGATOR
  • Vania Youroukova, Prof, PhD

    University Hospital for Pulmonary Diseases " St. Sofia"

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
DOUBLE
Who Masked
PARTICIPANT, INVESTIGATOR
Masking Details
Investigators will be provided with coded and identical products. Each individual involved in the study will be blinded to the assignment until study completion. Considering the established safety profile of the probiotic strains no necessity is foreseen for urgent unblinding of treatment assignment. With this in mind, no copies of the treatment assignments will be stored at the enrollment sites. If needed, the Investigators may receive information about the assignment of a particular subject only after review and approval by the Medical monitor. No information about the subjects will be shared with the company conducting the randomization.
Purpose
PREVENTION
Intervention Model
PARALLEL
Model Details: Prospective, multicenter, double-blind, placebo-controlled, randomized, parallel-arm clinical study
Sponsor Type
INDUSTRY
Responsible Party
SPONSOR

Study Record Dates

First Submitted

October 31, 2022

First Posted

November 7, 2022

Study Start

November 27, 2022

Primary Completion

March 20, 2023

Study Completion

April 25, 2023

Last Updated

October 21, 2024

Record last verified: 2022-12

Data Sharing

IPD Sharing
Will not share

Locations