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Trial details imported from ClinicalTrials.gov

For full trial details, please see the original record at https://clinicaltrials.gov/study/NCT00306592




Registration number
NCT00306592
Ethics application status
Date submitted
31/01/2006
Date registered
24/03/2006
Date last updated
21/03/2017

Titles & IDs
Public title
Natalizumab Re-Initiation of Dosing
Scientific title
An Open-Label, Multicenter, Extension Study to Evaluate the Safety and Tolerability of Natalizumab Following Re-Initiation of Dosing in Multiple Sclerosis Subjects Who Have Completed Study C-1801, C-1802, or C-1803 and a Dosing Suspension Safety Evaluation
Secondary ID [1] 0 0
101-MS-322
Universal Trial Number (UTN)
Trial acronym
Linked study record

Health condition
Health condition(s) or problem(s) studied:
Multiple Sclerosis, Relapsing-Remitting 0 0
Condition category
Condition code

Intervention/exposure
Study type
Interventional
Description of intervention(s) / exposure
Experimental: Natalizumab - All study participants in 101-MS-322 (NCT00306592) and 101-MS-321 (NCT00297232) received open label 300 mg intravenous (IV) natalizumab 60-minute infusion once every 4 weeks (28 days ±7 days) for up to 48 weeks. After 48 weeks, participants from 101-MS-322 (NCT00306592) entering study 101-MS-321 (NCT 00297232; considered the Long-Term Treatment Period of 101-MS-322) were continued on treatment from Week 52 through Week 480.
Comparator / control treatment
Control group

Outcomes
Primary outcome [1] 0 0
Number of Participants With Treatment-Emergent Adverse Events (AEs) and Serious AEs (SAEs)
Timepoint [1] 0 0
Baseline through Week 48
Primary outcome [2] 0 0
Number of Participants With Hypersensitivity-related Adverse Events
Timepoint [2] 0 0
Baseline through Week 48
Primary outcome [3] 0 0
Number of Participants With Antibodies to Natalizumab
Timepoint [3] 0 0
Baseline (Week 0), Week 4, Week 24 (test was repeated after 8 weeks if positive, to confirm persistence)

Eligibility
Key inclusion criteria
* MS subjects who completed Study C-1801 (NCT00027300), C-1802 (NCT00030966), or C-1803 (NCT00097760) and completed a Dosing Suspension Safety Evaluation (neurological examination and magnetic resonance imaging [MRI] scan)
* Considered by the investigator to be free of signs and symptoms suggestive of progressive multifocal leukoencephalopathy (PML) based on medical history, physical examination, or laboratory testing (results from the Dosing Suspension Safety Evaluation from Study C-1808 [NCT000276172] may be used)
* Other protocol-defined inclusion criteria may apply
Minimum age
18 Years
Maximum age
No limit
Sex
Both males and females
Can healthy volunteers participate?
No
Key exclusion criteria
* Considered by the investigator to be immunocompromised, based on medical history, physical examination, or laboratory testing (results from the Dosing Suspension Safety Evaluation from Study C-1808 may be used), or due to prior immunosuppressive treatment
* History of persistent anti-natalizumab antibodies, based upon testing from prior natalizumab studies
* Other protocol-defined exclusion criteria may apply

Study design
Purpose of the study
Treatment
Allocation to intervention
Not applicable
Procedure for enrolling a subject and allocating the treatment (allocation concealment procedures)
Methods used to generate the sequence in which subjects will be randomised (sequence generation)
Masking / blinding
Open (masking not used)
Who is / are masked / blinded?



Intervention assignment
Single group
Other design features
Phase
Phase 3
Type of endpoint/s
Statistical methods / analysis

Recruitment
Recruitment status
Completed
Data analysis
Reason for early stopping/withdrawal
Other reasons
Date of first participant enrolment
Anticipated
Actual
1/03/2006
Date of last participant enrolment
Anticipated
Actual
Date of last data collection
Anticipated
Actual
1/02/2008
Sample size
Target
Accrual to date
Final
404
Recruitment in Australia
Recruitment state(s)
Recruitment outside Australia
Country [1] 0 0
United States of America
State/province [1] 0 0
Alabama
Country [2] 0 0
United States of America
State/province [2] 0 0
Arizona
Country [3] 0 0
United States of America
State/province [3] 0 0
Arkansas
Country [4] 0 0
United States of America
State/province [4] 0 0
California
Country [5] 0 0
United States of America
State/province [5] 0 0
Colorado
Country [6] 0 0
United States of America
State/province [6] 0 0
Connecticut
Country [7] 0 0
United States of America
State/province [7] 0 0
District of Columbia
Country [8] 0 0
United States of America
State/province [8] 0 0
Florida
Country [9] 0 0
United States of America
State/province [9] 0 0
Georgia
Country [10] 0 0
United States of America
State/province [10] 0 0
Illinois

Funding & Sponsors
Primary sponsor type
Commercial sector/industry
Name
Biogen
Address
Country

Ethics approval
Ethics application status

Summary
Brief summary
The primary objectives of this study are to further evaluate the safety of natalizumab (Tysabri®) monotherapy by evaluating the risk of hypersensitivity and immunogenicity following re-exposure to natalizumab, and to confirm the safety of switching to natalizumab from interferon beta (IFN-ß), glatiramer acetate (GA), or other multiple sclerosis (MS) therapies.
Trial website
https://clinicaltrials.gov/study/NCT00306592
Trial related presentations / publications
Public notes
This record is viewable in the ANZCTR as it had previously listed Australia and/or New Zealand as a recruitment site, however these sites have since been removed

Contacts
Principal investigator
Name 0 0
Medical Director
Address 0 0
Biogen
Country 0 0
Phone 0 0
Fax 0 0
Email 0 0
Contact person for public queries
Name 0 0
Address 0 0
Country 0 0
Phone 0 0
Fax 0 0
Email 0 0
Contact person for scientific queries



Summary Results

For IPD and results data, please see https://clinicaltrials.gov/study/NCT00306592