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Assessment of the Efficacy of E. Coli 5C in the Management of Post-Colonoscopy Symptoms

6. november 2026 opdateret af: Dr. Amjad Khan, Liaquat University of Medical & Health Sciences

Assessment of the Efficacy of E. Coli 5C in the Management of Post-colonoscopy Symptoms: a Randomised, Double-blind, Placebo-controlled Trial.

This prospective, randomized, double-blind, placebo-controlled clinical trial will evaluate the efficacy and safety of Escherichia coli 5C (Colipral®) in adult patients undergoing diagnostic colonoscopy. Participants will be randomized in a 1:1 ratio to receive either Colipral® or placebo for 14 days immediately after colonoscopy. The study aims to determine whether Colipral® reduces post-colonoscopy gastrointestinal symptoms compared with placebo, using validated symptom and stool assessment tools, patient-reported global improvement, and safety monitoring.

Studieoversigt

Status

Ikke rekrutterer endnu

Betingelser

Intervention / Behandling

Detaljeret beskrivelse

Patients undergoing diagnostic colonoscopy may experience gastrointestinal discomfort in the days following the procedure, which may be related to alterations in the intestinal microbiota induced by bowel preparation. This study is designed to evaluate whether supplementation with Escherichia coli 5C (Colipral®) can reduce post-colonoscopy gastrointestinal symptoms compared with placebo.

This is a prospective, randomized, double-blind, placebo-controlled clinical trial. Adult patients undergoing complete diagnostic colonoscopy will be screened according to predefined inclusion and exclusion criteria and enrolled after written informed consent. Participants will be randomly assigned in a 1:1 ratio to receive either Colipral® or placebo for 14 days immediately following colonoscopy. The study treatment will be administered as 2 capsules per day, with 1 capsule in the morning and 1 capsule in the evening after dinner.

Clinical assessments will be performed at baseline and at 48 hours, 7 days, and 14 days after colonoscopy, with patient global impression of change and clinically relevant improvement assessed only at Day 7 and Day 14. The primary efficacy endpoint is the between-group difference in change in Gastrointestinal Symptom Rating Scale (GSRS) total score from baseline to Day 14. Secondary assessments include numerical rating scale (NRS) symptom scores, stool consistency, bowel movement frequency, patient global impression of change, clinically relevant improvement in gastrointestinal symptoms, use of rescue medication, treatment adherence, tolerability, and adverse events.

The study is designed to assess both the clinical efficacy and safety of Colipral® in the management of post-colonoscopy symptoms in adult patients.

Undersøgelsestype

Interventionel

Tilmelding (Anslået)

160

Fase

  • Ikke anvendelig

Kontakter og lokationer

Dette afsnit indeholder kontaktoplysninger for dem, der udfører undersøgelsen, og oplysninger om, hvor denne undersøgelse udføres.

Studiekontakt

Studiesteder

      • Roma, Italien, 00191
        • Clinica ARS Biomedica - Via Luigi Bodio 58
        • Kontakt:

Deltagelseskriterier

Forskere leder efter personer, der passer til en bestemt beskrivelse, kaldet berettigelseskriterier. Nogle eksempler på disse kriterier er en persons generelle helbredstilstand eller tidligere behandlinger.

Berettigelseskriterier

Aldre berettiget til at studere

18 år til 80 år (Voksen, Ældre voksen)

Tager imod sunde frivillige

Ingen

Køn, der er berettiget til at studere

Alle

Beskrivelse

Inclusion Criteria:

  • Aged between 18 and 80 years;
  • Must have undergone a full colonoscopy on the date of enrolment.

Exclusion Criteria:

  • Chronic Inflammatory Bowel Disease
  • Complicated Diverticular Disease (DICA classification >3)
  • Neoplastic disease of the colon
  • Diagnosed microscopic colitis
  • Therapeutic colonoscopy
  • Immunocompromised patients (primary immunodeficiency, cancer undergoing active chemotherapy or immunotherapy, autoimmune disease undergoing immunosuppressive treatment)

Studieplan

Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.

Hvordan er undersøgelsen tilrettelagt?

Design detaljer

  • Primært formål: Behandling
  • Tildeling: Randomiseret
  • Interventionel model: Parallel tildeling
  • Maskning: Firedobbelt

Våben og indgreb

Deltagergruppe / Arm
Intervention / Behandling
Eksperimentel: Escherichia coli 5C (Colipral®)

Participants in this arm will receive Colipral® (dietary supplement containing Escherichia coli 5C), administered twice daily, with 1 capsule in the morning and 1 capsule in the evening after dinner, for 14 days immediately following colonoscopy.

Dietary supplement containing Escherichia coli 5C (Colipral®)

Placebo komparator: Placebo

Participants in this arm will receive placebo, identical in appearance but not containing the probiotic strain, administered twice daily, with 1 capsule in the morning and 1 capsule in the evening after dinner, for 14 days immediately following colonoscopy.

Matching placebo

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Change in Gastrointestinal Symptom Rating Scale (GSRS) total score at Day 14
Tidsramme: Baseline to Day 14 after colonoscopy

Between-group difference in change in gastrointestinal symptom severity from baseline to Day 14 after colonoscopy, assessed using the Gastrointestinal Symptom Rating Scale (GSRS).

Baseline to Day 14 after colonoscopy

Sekundære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Change in abdominal pain intensity score
Tidsramme: 48 hours, Day 7, and Day 14 after colonoscopy

Between-group difference in abdominal pain intensity assessed using a Numerical Rating Scale (NRS, 0-10), with higher scores indicating greater symptom intensity, at 48 hours, Day 7, and Day 14 after colonoscopy.

48 hours, Day 7, and Day 14 after colonoscopy
Change in abdominal bloating intensity score
Tidsramme: 48 hours, Day 7, and Day 14 after colonoscopy

Between-group difference in abdominal bloating intensity assessed using a Numerical Rating Scale (NRS, 0-10), with higher scores indicating greater symptom intensity, at 48 hours, Day 7, and Day 14 after colonoscopy.

48 hours, Day 7, and Day 14 after colonoscopy
Change in flatulence intensity score
Tidsramme: 48 hours, Day 7, and Day 14 after colonoscopy

Between-group difference in flatulence intensity assessed using a Numerical Rating Scale (NRS, 0-10), with higher scores indicating greater symptom intensity, at 48 hours, Day 7, and Day 14 after colonoscopy.

48 hours, Day 7, and Day 14 after colonoscopy
Change in stool consistency assessed by Bristol Stool Form Scale
Tidsramme: 48 hours, Day 7, and Day 14 after colonoscopy

Between-group difference in stool consistency assessed using the Bristol Stool Form Scale at 48 hours, Day 7, and Day 14 after colonoscopy.

48 hours, Day 7, and Day 14 after colonoscopy
Change in frequency of bowel movements
Tidsramme: 48 hours, Day 7, and Day 14 after colonoscopy

Between-group difference in the mean number of daily bowel movements recorded at 48 hours, Day 7, and Day 14 after colonoscopy.

48 hours, Day 7, and Day 14 after colonoscopy
Global Assessment of Change of Gastrointestinal Symptoms (PGIC) score at Day 7 and Day 14
Tidsramme: Day 7 and Day 14 after colonoscopy

Between-group difference in the Global Assessment of Change of Gastrointestinal Symptoms at Day 7 and Day 14, measured using the Patient Global Impression of Change (PGIC), a 7-category ordinal scale ranging from "Very much worse" to "Very much improved".

Day 7 and Day 14 after colonoscopy
Proportion of participants with clinically relevant improvement in gastrointestinal symptoms
Tidsramme: Day 7 and Day 14 after colonoscopy

Proportion of participants with clinically relevant improvement in gastrointestinal symptoms, defined as a PGIC response of "Improved", assessed at Day 7 and Day 14 after colonoscopy.

Day 7 and Day 14 after colonoscopy
Use of rescue medication for gastrointestinal symptoms
Tidsramme: Within 14 days after colonoscopy

Proportion of participants who used concomitant or rescue medication for control of gastrointestinal symptoms within 14 days after colonoscopy. Type of drug, days of intake, and dose will also be recorded.

Within 14 days after colonoscopy
Frequency of adverse events
Tidsramme: Within 14 days after colonoscopy

Frequency and type of adverse events reported within 14 days after colonoscopy, including suspected allergic symptoms, nausea, vomiting, and other clinically relevant events.

Within 14 days after colonoscopy
Treatment tolerability score
Tidsramme: Day 14 after colonoscopy

Treatment tolerability assessed using a numerical score from 0 to 10 during the 14-day post-colonoscopy period.

Day 14 after colonoscopy
Adherence to treatment
Tidsramme: Within 14 days after colonoscopy

Adherence to study treatment, expressed as the percentage of doses taken compared with those expected during the 14-day observation period.

Within 14 days after colonoscopy

Samarbejdspartnere og efterforskere

Det er her, du vil finde personer og organisationer, der er involveret i denne undersøgelse.

Sponsor

Samarbejdspartnere

Datoer for undersøgelser

Disse datoer sporer fremskridtene for indsendelser af undersøgelsesrekord og resumeresultater til ClinicalTrials.gov. Studieregistreringer og rapporterede resultater gennemgås af National Library of Medicine (NLM) for at sikre, at de opfylder specifikke kvalitetskontrolstandarder, før de offentliggøres på den offentlige hjemmeside.

Studer store datoer

Studiestart (Anslået)

16. november 2026

Primær færdiggørelse (Anslået)

30. april 2027

Studieafslutning (Anslået)

30. april 2027

Datoer for studieregistrering

Først indsendt

6. november 2026

Først indsendt, der opfyldte QC-kriterier

6. november 2026

Først opslået (Faktiske)

12. november 2026

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Faktiske)

12. november 2026

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

6. november 2026

Sidst verificeret

1. november 2026

Mere information

Begreber relateret til denne undersøgelse

Andre undersøgelses-id-numre

  • 139_16luglio2025_COLIPRAL_SIST

Lægemiddel- og udstyrsoplysninger, undersøgelsesdokumenter

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