Crohn's DiseasePhase 4NCT00280956
Open Label Natalizumab Safety Extension Study for Subjects With Crohn's Disease
A Phase 4 study testing natalizumab in people with Crohn's Disease, run by Biogen at 1 site in United States.
Trial summary
The primary objective of this study is to evaluate the long-term tolerability and safety of natalizumab when administered a dose of 300 mg intravenously (IV) to subjects with Crohn's Disease who have previously participated in studies CD251, CD301, CD303, CD306, or CD307. Read more about this study
- Who is it for?
- Ages 18 years and older
- Conditions the study is for
- Crohn's Disease
- What is being tested?
- natalizumab
- How many people
- 2,000 participants
- Where
- 1 siteUnited States
- Study dates
- Jul 2002to Sep 2004
- Phase
- Phase 4
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 years and older
- All sexes
- No healthy volunteers
- Adult, Older adult
- Male and Female Subjects 18 years and older with Crohn's Disease who have participated in studies CD251, CD301, CD303, CD306, or CD307 per protocol
Trial locations and contacts
1 site in 1 country.
United States1 site
Performed only at CD251, CD301, CD303, CD306, and CD307 sites globally. No general public enrollment. The study is managed from the office of Elan Pharmaceuticals, Inc. in
San Diego, California, 92121
About this study
Official title: A Phase III, Multicenter, Open-Label, Long-Term Study of the Safety, Tolerability, and Efficacy of Intravenous Antegren™ (Natalizumab) in Crohn's Disease Subjects Who Have Previously Participated in Antegren Crohn's Disease Studies
The primary objective of this study is to evaluate the long-term tolerability and safety of natalizumab when administered a dose of 300 mg intravenously (IV) to subjects with Crohn's Disease who have previously participated in studies CD251, CD301, CD303, CD306, or CD307.
- Conditions
- Crohn's Disease
- Being tested
- natalizumab
- Medical subject headings
- Crohn Disease
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
natalizumabDrug
What is being measured
The primary outcome is the main question the study is designed to answer.
To evaluate the safety of natalizumab by the number and proportion of subjects with adverse events, and by assessing clinical laboratory parameters and vital signs.
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted24 Jan 2006 (estimated)
- Study startJul 2002
- Primary completionSep 2004
- Study completionSep 2004
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Crohn's DiseaseStudies of the same condition, open and under way.
- More trials run by BiogenThe sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase 4
- Allocation
- Non-randomised
- Intervention model
- Single group
- Masking
- None (open label)
- Enrolment
- 2,000 participants (estimated)
Sponsor and investigators
- Lead sponsor
- Biogen
- Sponsor type
- Industry (pharma, biotech, devices)
- Collaborators
- Elan Pharmaceuticals
- Responsible party
- Sponsor
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT00280956
- Sponsor's protocol ID
- CD351
- Status last verified
- Mar 2012
- First submitted
- 21 Jan 2006
- Last updated
- 16 Jun 2016
- Results posted
- No
Study at a glance
From the registry record, last updated by the sponsor on 16 Jun 2016. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- A Phase III, Multicenter, Open-Label, Long-Term Study of the Safety, Tolerability, and Efficacy of Intravenous Antegren™ (Natalizumab) in Crohn's Disease Subjects Who Have Previously Participated in Antegren Crohn's Disease Studies
- ClinicalTrials.gov ID
- NCT00280956
- Acronym / sponsor ID
- CD351
- Conditions
- Crohn's Disease
- Phase
- Phase 4
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 2,000 participants (estimated)
- Lead sponsor
- BiogenIndustry (pharma, biotech, devices)
- Collaborators
- Elan Pharmaceuticals
- Study start
- Jul 2002
- Primary completion
- Sep 2004 (actual)
- Study completion
- Sep 2004 (actual)
- First posted
- 24 Jan 2006 (estimated)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
The primary objective of this study is to evaluate the long-term tolerability and safety of natalizumab when administered a dose of 300 mg intravenously (IV) to subjects with Crohn's Disease who have previously participated in studies CD251, CD301, CD303, CD306, or CD307.
Study design
- Allocation
- Non-randomised
- Intervention model
- Single group
- Masking
- None (open label)
Who may qualify
- Ages
- 18 years and older
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| natalizumab | Drug | – |
Primary outcome
To evaluate the safety of natalizumab by the number and proportion of subjects with adverse events, and by assessing clinical laboratory parameters and vital signs.
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 16 Jun 2016.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
The record lists no contact. Use the official record to reach the sponsor.
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A Phase 4 study testing natalizumab in people with Crohn's Disease, run by Biogen at 1 site in United States.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 16 Jun 2016. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
What does this phase mean?
Phase 4 studies take place after a treatment is approved, to learn more about its long-term benefits and risks in everyday use.
Not every study follows the same path, and some studies (observational studies, device studies) have no phase.
Are results available for this study?
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
To evaluate the safety of natalizumab by the number and proportion of subjects with adverse events, and by assessing clinical laboratory parameters and vital signs.. It is what the study was designed to measure, not a finding.
Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 16 Jun 2016; AzTrials last refreshed its copy on 7 Nov 2026.