NCT06040515

Brief Summary

The goal of this observational study is to assess the efficacy and safety of the probiotic Escherichia coli Nissle 1917 (EcN®, Ca.Di.Group S.p.A) in the treatment of symptomatic patients after an episode of both complicated and uncomplicated acute colonic diverticulitis. The main question it aims to answer are:

  • Is the studied probiotic able to significantly reduce symptoms, assessed by means of a validated and dedicated score?
  • Is there any difference in microbiota among the study group at baseline and a selected cohort of patients subdivided in subjects with diverticulosis and asymptomatic subjects after an episode of acute uncomplicated diverticulitis or an episode of complicated diverticulitis submitted to surgery with colonic resection without stoma?
  • Is there any difference in microbiota in the study group at baseline and after 3 and 6 months of treatment with the probiotic?
  • Is there any correlation between microbiota modification and symptoms during follow-up?
  • Is there any impact on fecal calprotectin values before and during probiotic therapy?
  • Is there any modification of evacuation before and during follow-up?
  • Is probiotic able to prevent recurrent episodes of acute diverticulitis during follow-up?
  • The safety of the probiotic will be assessed during the follow-up. The study group will be assessed at baseline and during follow-up with a dedicated clinical score and Bristol stool scale. Microbiota and fecal calprotectin values will be also assessed at baseline and during follow-up. Microbiota at baseline will be also evaluated for comparison in the three selected groups with diverticulosis and both asymptomatic and symptomatic after an episode of acute diverticulitis.

Trial Health

43
At Risk

Trial Health Score

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

Trial has exceeded expected completion date
Enrollment
145

participants targeted

Target at P50-P75 for all trials

Timeline
Completed

Started May 2023

Geographic Reach
1 country

12 active sites

Status
unknown

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

Study Start

First participant enrolled

May 1, 2023

Completed
4 months until next milestone

First Submitted

Initial submission to the registry

September 10, 2023

Completed
5 days until next milestone

First Posted

Study publicly available on registry

September 15, 2023

Completed
4 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 31, 2023

Completed
6 months until next milestone

Study Completion

Last participant's last visit for all outcomes

June 30, 2024

Completed
Last Updated

September 15, 2023

Status Verified

September 1, 2023

Enrollment Period

8 months

First QC Date

September 10, 2023

Last Update Submit

September 10, 2023

Conditions

Outcome Measures

Primary Outcomes (1)

  • Median symptomatic score reduction after therapy with Escherichia coli Nissle 1917

    Median symptomatic score assessed at baseline and during follow-up

    Six-months follow-up

Secondary Outcomes (7)

  • Microbiota qualitative composition

    Baseline

  • Microbiota qualitative composition modification

    Baseline and during 6-month follow-up.

  • Microbiota qualitative composition and median symptomatic score correlation

    Baseline and during 6-month follow-up.

  • Concentration of fecal calprotectin

    Baseline and during 6-month follow-up.

  • Bristol stool scale modification

    Baseline and during 6-month follow-up.

  • +2 more secondary outcomes

Study Arms (4)

Symptomatic patients after acute diverticulitis

Patients aged ≥18 with persistent symptoms at least three months after a radiologic and/or endoscopic documented acute diverticulitis or after six months of surgery for complicated acute diverticulitis. Therapy with Escherichia coli Nissle 1917 (EcN®) will be prescribed for a global duration of six months with the following assumption schedule: 2 capsules b.i.d. during 4 weeks, followed by 1 capsule o.i.d during 20 days each month for 5 months.

Drug: Probiotic Formula

Diverticulosis

Patients with asymptomatic diverticulosis. No therapy will be administered. Microbiota assessment will be performed.

Asymptomatic patients after acute uncomplicated diverticulitis

Asymptomatic patients assessed three months after an episode of acute uncomplicated diverticulitis. No therapy will be administered. Microbiota assessment will be performed.

Asymptomatic patients after acute complicated diverticulitis

Asymptomatic patients assessed six months after an episode of acute complicated diverticulitis submitted to surgery with resection and without stoma . No therapy will be administered. Microbiota assessment will be performed.

Interventions

Capsule with 25 billion live strains of Escherichia coli Nissle 1917

Also known as: Escherichia coli Nissle 1917
Symptomatic patients after acute diverticulitis

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

The study population will include the above specified study groups.

You may qualify if:

  • Symptomatic patients three months after an episode of uncomplicated acute colonic diverticulitis;
  • Symptomatic patients six months after an episode of complicated acute colonic diverticulitis; submitted to .surgical colonic resection without stoma;
  • Patients with diverticulosis;
  • Asymptomatic patients three months after an episode of uncomplicated acute colonic diverticulitis;
  • Asymptomatic patients six months after an episode of complicated acute colonic diverticulitis; submitted to surgical colonic resection without stoma.

You may not qualify if:

  • Ongoing acute diverticulitis at radiologic assessment
  • Antibiotic therapy, both systemic and topic, and/or probiotics and/or mesalazine within four weeks before enrolment;
  • Lactulose-lactitol use within four weeks before enrolment;
  • Presence of chronic inflammatory bowel diseases;
  • Presence of Segmental Colitis Associated with Diverticulitis (SCAD);
  • Presence of ischemic colitis;
  • Severe chronic liver (Child-Pugh C) and/or pancreatic and/or renal diseases;
  • Patients with severe renal failure;
  • Presence of suspected/actual pregnancy;
  • Presence of recent/ongoing neoplasia, under oncological treatment within 6 months before enrolment;
  • Presence of COVID-19 infection;
  • Patients unable to give informed consent.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (12)

UOC di Gastroenterologia ed Endoscopia Digestiva, Ospedale "Pugliese-Ciaccio

Catanzaro, Calabria, 88100, Italy

RECRUITING

UOSVD di Endoscopia Digestiva, Ospedale "S. Maria Goretti"

Latina, Lazio, 04100, Italy

RECRUITING

UOC di Gastroenterologia, Azienda Ospedaliera "S. Camillo-Forlanini"

Rome, Lazio, 00152, Italy

RECRUITING

UOSVD di Gastroenterologia ed Endoscopia Digestiva, Ospedale "Umberto I"

Rome, Lazio, 00161, Italy

RECRUITING

UOC di Medicina Interna e Gastroenterologia, Ospedale "Cristo Re"

Rome, Lazio, 00167, Italy

RECRUITING

UOC Chirurgia Generale, Ospedale "P. Colombo"

Velletri, Lazio, 00049, Italy

RECRUITING

UOC di Gastroenterologia, Ospedale "Belcolle",

Viterbo, Lazio, 01100, Italy

RECRUITING

• UOC di Gastroenterologia ed Endoscopia Digestiva, Ospedale Universitario "San Raffaele"

Milan, Lombardy, 20132, Italy

RECRUITING

UOC di Gastroenterologia Azienda Ospedaliero-Universitaria di Padova

Padova, Lombardy, 35031, Italy

RECRUITING

UOC di Gastroenterologia, Ospedale "Guglielmo da Saliceto"

Piacenza, Lombardy, 29121, Italy

RECRUITING

UOC di Gastroenterologia, Ospedale "S. Salvatore",

Pesaro, The Marches, 61121, Italy

RECRUITING

Gastroenterology Service , ASL BAT,

Andria, 76123, Italy

RECRUITING

Related Publications (5)

  • Kvasnovsky CL, Adams K, Papagrigoriadis S. Diverticular disease as a chronic gastrointestinal condition: experience from a specialist clinic. Eur J Gastroenterol Hepatol. 2015 Apr;27(4):442-8. doi: 10.1097/MEG.0000000000000304.

  • Mj O, Turner GA, A S, Frizelle FA, R P. Distinct changes in the colonic microbiome associated with acute diverticulitis. Colorectal Dis. 2022 Dec;24(12):1591-1601. doi: 10.1111/codi.16271. Epub 2022 Aug 11.

  • Tursi A, Papa V, Lopetuso LR, Settanni CR, Gasbarrini A, Papa A. Microbiota Composition in Diverticular Disease: Implications for Therapy. Int J Mol Sci. 2022 Nov 26;23(23):14799. doi: 10.3390/ijms232314799.

  • Teng G, Liu Z, Liu Y, Wu T, Dai Y, Wang H, Wang W. Probiotic Escherichia coli Nissle 1917 Expressing Elafin Protects Against Inflammation and Restores the Gut Microbiota. Front Microbiol. 2022 May 6;13:819336. doi: 10.3389/fmicb.2022.819336. eCollection 2022.

  • Lahat A, Fidder HH, Ben-Horin S. Development and validation of a diverticular clinical score for symptomatic uncomplicated diverticular disease after acute diverticulitis in a prospective patient cohort. Therap Adv Gastroenterol. 2020 May 8;13:1756284820913210. doi: 10.1177/1756284820913210. eCollection 2020.

Biospecimen

Retention: SAMPLES WITH DNA

Stool

MeSH Terms

Conditions

Diverticulitis, Colonic

Condition Hierarchy (Ancestors)

DiverticulitisDiverticular DiseasesGastroenteritisGastrointestinal DiseasesDigestive System DiseasesDiverticulosis, ColonicColonic DiseasesIntestinal Diseases

Study Officials

  • Walter Elisei, MD

    • UOC di Gastroenterologia, Azienda Ospedaliera "S. Camillo-Forlanini", Roma

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Antonio Tursi, MD, PhD

CONTACT

Marcello Picchio, MD

CONTACT

Study Design

Study Type
observational
Observational Model
CASE ONLY
Time Perspective
PROSPECTIVE
Sponsor Type
OTHER
Responsible Party
SPONSOR INVESTIGATOR
PI Title
MD, PhD

Study Record Dates

First Submitted

September 10, 2023

First Posted

September 15, 2023

Study Start

May 1, 2023

Primary Completion

December 31, 2023

Study Completion

June 30, 2024

Last Updated

September 15, 2023

Record last verified: 2023-09

Data Sharing

IPD Sharing
Will not share

Locations