World Health Organization site
Skip Navigation Links

Main
Note: This record shows only 22 elements of the WHO Trial Registration Data Set. To view changes that have been made to the source record, or for additional information about this trial, click on the URL below to go to the source record in the primary register.
Register: EUCTR
Last refreshed on: 19 March 2012
Main ID:  EUCTR2008-005871-92-SE
Date of registration: 10/12/2008
Prospective Registration: Yes
Primary sponsor: Sahlgrenska University Hospital
Public title: En fas 1 studie av effekt av Tysabri (natalizumab), en IgG4 humaniserad monoklonal antikropp specifik mot VLA-4 (integrin alfa-4), administrerad som infusion 1 gång/månad under 3 månader hos patienter med kronisk idiopatisk trombocytopen purpura (ITP). - Tysabri for ITP
Scientific title: En fas 1 studie av effekt av Tysabri (natalizumab), en IgG4 humaniserad monoklonal antikropp specifik mot VLA-4 (integrin alfa-4), administrerad som infusion 1 gång/månad under 3 månader hos patienter med kronisk idiopatisk trombocytopen purpura (ITP). - Tysabri for ITP
Date of first enrolment: 05/02/2009
Target sample size:
Recruitment status: Authorised-recruitment may be ongoing or finished
URL:  https://www.clinicaltrialsregister.eu/ctr-search/search?query=eudract_number:2008-005871-92
Study type:  Interventional clinical trial of medicinal product
Study design:  Controlled: no Randomised: Open: Single blind: Double blind: Parallel group: Cross over: Other: If controlled, specify comparator, Other Medicinial Product: Placebo: Other:  
Phase: 
Countries of recruitment
Sweden
Contacts
Name:    
Address: 
Telephone:
Email:
Affiliation: 
Name:    
Address: 
Telephone:
Email:
Affiliation: 
Key inclusion & exclusion criteria
Inclusion criteria:
1) Chronic primary ITP since at least 6 months before screening and a platelet count below 50 x 109/l on day 1 or 24 hours before the first dose.
2) No immunosuppressive treatment at day 1 or 24 hours before the first dose.
3) Acceptable contraceptive usage.
4) At least 18 years of age.
5) Signed informed consent.

Are the trial subjects under 18? no
Number of subjects for this age range:
F.1.2 Adults (18-64 years) yes
F.1.2.1 Number of subjects for this age range
F.1.3 Elderly (>=65 years) yes
F.1.3.1 Number of subjects for this age range

Exclusion criteria:
1) Ongoing immunosuppressive treatment.
2) Presence of malignancy.
3) Pregnancy or lactation.
4) Not willing to participate in the study.
5) Participation in other clinical trial.
6) Not willing to use contraception for 3 months.
7) Ongoing JC virus infection.



Age minimum:
Age maximum:
Gender:
Female: yes
Male: yes
Health Condition(s) or Problem(s) studied
Chronic idiopathic thrombocytopenic purpura (ITP)
MedDRA version: 9.1 Level: LLT Classification code 10051057 Term: Idiopathic thrombocytopenia
Intervention(s)

Trade Name: Tysabri
Product Name: Tysabri
Pharmaceutical Form: Concentrate for solution for infusion

Primary Outcome(s)
Secondary Objective: 1) Response rates.
2) Degree of T-cell accumulation in the bone marrow and change in the number of activated T-cells, regulatory T-cells and antigens involved in lymphocyte homing.
3) Degree of T-cell mediated cytotoxicity before and after treatment.
4) Evaluate if this treatment induces a shift from Th1 (Interferon-?) to Th2 (IL-4 and IL-10) or Th3 (TGFß1) profile.

Primary end point(s): To asses improvement of platelet counts and bleeding tendencies after 3 months with Tysabri treatment.
Main Objective: To assess platelet counts and bleeding tendencies after 3 months of Tysabri treatment.

Secondary Outcome(s)
Secondary ID(s)
Sahlgrenska/Hematology/2008:1
Source(s) of Monetary Support
Secondary Sponsor(s)
Ethics review
Results
Results available:
Date Posted:
Date Completed:
URL:
Disclaimer: Trials posted on this search portal are not endorsed by WHO, but are provided as a service to our users. In no event shall the World Health Organization be liable for any damages arising from the use of the information linked to in this section. None of the information obtained through use of the search portal should in any way be used in clinical care without consulting a physician or licensed health professional. WHO is not responsible for the accuracy, completeness and/or use made of the content displayed for any trial record.
Copyright - World Health Organization - Version 3.6 - Version history