General information
  • Disease category Digestive Systems diseases (non cancer) (BASEC)
  • Recruitment status recruitment ongoing (BASEC/ICTRP)
  • Trial sites
    Zurich
    (BASEC)
  • Contact Prof. Dr. med. Michael Scharl michael.scharl@usz.ch (BASEC)
  • Data Source(s) BASEC: Import from 16.01.2026 ICTRP: N/A
  • Last update 16.01.2026 08:55
HumRes65053 | SNCTP000005908 | BASEC2024-00379

Modulation of the gut microbiome in patients with ulcerative colitis

  • Disease category Digestive Systems diseases (non cancer) (BASEC)
  • Recruitment status recruitment ongoing (BASEC/ICTRP)
  • Trial sites
    Zurich
    (BASEC)
  • Contact Prof. Dr. med. Michael Scharl michael.scharl@usz.ch (BASEC)
  • Data Source(s) BASEC: Import from 16.01.2026 ICTRP: N/A
  • Last update 16.01.2026 08:55

Summary description of the study

The aim of this study is to investigate the effects and tolerability of administering selected probiotic gut bacteria to individuals with ulcerative colitis. Included are patients who currently have no symptoms (remission) or only show mild symptoms. It will be investigated how the gut microbiome changes with this treatment and what effects this has on certain parameters in blood and stool as well as on the quality of life of the patients. The planned duration of the study is 36 months, for participants a total of 7 visits are planned over a period of 32 weeks, each lasting 1-2 hours.

(BASEC)

Intervention under investigation

Oral intake of freeze-dried probiotic bacteria/dietary supplements

(BASEC)

Disease under investigation

Ulcerative colitis in remission or with mild disease course

(BASEC)

Criteria for participation in trial
• ≥ 18 years old on the day of signing the informed consent • Confirmed diagnosis of ulcerative colitis ≥ 6 months, confirmed by endoscopy • Remission or mild disease, defined by a partially adjusted Mayo score (MMS) ≤ 3 (BASEC)

Exclusion criteria
• Individuals with Crohn's disease, presence or history of fistulas, indeterminate colitis, infectious/ischemic colitis, microscopic colitis, or celiac disease. • Current signs of toxic megacolon, fulminant colitis, or intestinal perforation. • Recent (within the last 3 months) or planned bowel surgeries or history of proctocolectomy or partial resection of the colon or current stoma or pouch placement. (BASEC)

Trial sites

Zurich

(BASEC)

not available

Sponsor

CRO Raffeiner

(BASEC)

Contact

Contact Person Switzerland

Prof. Dr. med. Michael Scharl

+ 41 44 255 3419

michael.scharl@usz.ch

Abteilung für Gastroenterologie und Hepatologie Universitätsklinik Zürich Rämistrasse 100 CH 8091 Zürich Schweiz

(BASEC)

Scientific Information

not available

Name of the authorising ethics committee (for multicentre studies, only the lead committee)

Ethics Committee Zurich

(BASEC)

Date of authorisation

17.05.2024

(BASEC)


ICTRP Trial ID
not available

Official title (approved by ethics committee)
Modulation of the Gut Microbiome in Ulcerative Colitis Patients (BASEC)

Academic title
not available

Public title
not available

Disease under investigation
not available

Intervention under investigation
not available

Type of trial
not available

Trial design
not available

Inclusion/Exclusion criteria
not available

not available

Primary and secondary end points
not available

not available

Registration date
not available

Incorporation of the first participant
not available

Secondary sponsors
not available

Additional contacts
not available

Secondary trial IDs
not available

Results-Individual Participant Data (IPD)
not available

Further information on the trial
not available

Results of the trial

Results summary

not available

Link to the results in the primary register

not available