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Trichuris Suis Ova (TSO) Suspension Versus Placebo in Active Crohn's Disease (TRUST-2)

This study has been completed.
Information provided by (Responsible Party):
Dr. Falk Pharma GmbH Identifier:
First received: January 18, 2011
Last updated: February 9, 2015
Last verified: February 2015

This study will run in centers in Germany, Denmark, Austria, Czech Republic, and Switzerland, only.

This proof-of-concept study aims to evaluate the efficacy of three doses of oral TSO suspension vs. placebo for the induction of remission in Crohn's disease.

Condition Intervention Phase
Crohn´s Disease Drug: Low dose TSO Drug: Medium dose TSO Drug: High dose TSO Drug: Placebo Phase 2

Study Type: Interventional
Study Design: Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Quadruple (Participant, Care Provider, Investigator, Outcomes Assessor)
Primary Purpose: Treatment
Official Title: Double-blind, Randomised, Placebo-controlled, Multi-centre Phase II Study to Evaluate the Efficacy and Safety of Three Different Dosages of Oral Trichuris Suis Ova (TSO) Suspension in Active Crohn's Disease

Resource links provided by NLM:

Further study details as provided by Dr. Falk Pharma GmbH:

Primary Outcome Measures:
  • Rate of clinical remission at week 12 (LOCF) defined as a CDAI< 150 [ Time Frame: 12 weeks ]

Secondary Outcome Measures:
  • Reduction of > 100 points in CDAI [ Time Frame: 12 weeks ]
  • Adverse events [ Time Frame: 12 weeks ]

Enrollment: 254
Study Start Date: November 2010
Study Completion Date: February 2014
Primary Completion Date: February 2014 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Experimental: Low dose TSO
Low dose suspension of TSO
Drug: Low dose TSO
Low dose TSO suspension
Experimental: Medium dose TSO
Medium dose suspension of TSO
Drug: Medium dose TSO
Medium dose TSO suspension
Experimental: High dose TSO
High dose suspension of TSO
Drug: High dose TSO
High dose TSO suspension
Placebo Comparator: Placebo
Placebo solution
Drug: Placebo
Placebo solution


Ages Eligible for Study:   18 Years to 75 Years   (Adult, Senior)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Major Inclusion Criteria:

  • Signed informed consent,
  • Man or woman between 18 and 75 years of age,
  • Established diagnosis of Crohn's disease (CD) since at least 3 months prior to screening confirmed by endoscopic and histological, or endoscopic and radiological criteria,
  • Negative pregnancy test in females of childbearing potential.

Major Exclusion Criteria:

  • Bowel surgery within the last 3 months prior to baseline,
  • Resection of more than 50 cm of the ileum,
  • Ileostomy or colostomy,
  • Septic complications,
  • Evidence of infectious diarrhoea (i.e., pathogenic bacteria or Clostridium difficile toxin in stool culture),
  • Abscess, perforation, fistulas, or perianal lesions,
  • Immediate surgery required (e.g., major stenosis, serious bleeding, peritonitis, ileus),
  • Clinical signs of stricturing disease,
  • Parenteral or tube feeding,
  • Abnormal hepatic function (ALT or ALP > 2.5 x upper limit of normal [ULN] at screening), liver cirrhosis, or portal hypertension,
  • Abnormal renal function (Cystatin C > ULN) at screening,
  • Any severe concomitant cardiovascular, renal, endocrine, or psychiatric disorder, which in the opinion of the investigator might have an influence on the patient's compliance or the interpretation of the results,
  • Any condition associated with significant immunosuppression,
  • Active malignancy or treatment with anticancer drugs during the last 5 years.
  • Existing or intended pregnancy or breast-feeding,
  • Participation in another clinical trial within the last 30 days, simultaneous participation in another clinical trial, or previous participation in this trial.
  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its identifier: NCT01279577

Klinikum der Johann Wolfgang Goethe-Universität
Frankfurt a.M., Hessen, Germany, 60590
Sponsors and Collaborators
Dr. Falk Pharma GmbH
Principal Investigator: Jürgen Schölmerich, Prof. Klinikum der Johann Wolfgang Goethe-Universität
  More Information

Responsible Party: Dr. Falk Pharma GmbH Identifier: NCT01279577     History of Changes
Other Study ID Numbers: TSU-2/CDA
2006-000720-13 ( EudraCT Number )
Study First Received: January 18, 2011
Last Updated: February 9, 2015

Keywords provided by Dr. Falk Pharma GmbH:
Crohn´s disease
Trichuris suis
induction of remission
porcine whipworm

Additional relevant MeSH terms:
Crohn Disease
Inflammatory Bowel Diseases
Gastrointestinal Diseases
Digestive System Diseases
Intestinal Diseases processed this record on August 17, 2017