E.1 Medical condition or disease under investigation |
E.1.1 | Medical condition(s) being investigated |
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E.1.1.1 | Medical condition in easily understood language |
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E.1.1.2 | Therapeutic area | Diseases [C] - Nervous System Diseases [C10] |
MedDRA Classification |
E.1.2 Medical condition or disease under investigation |
E.1.2 | Version | 16.1 |
E.1.2 | Level | PT |
E.1.2 | Classification code | 10063399 |
E.1.2 | Term | Relapsing-remitting multiple sclerosis |
E.1.2 | System Organ Class | 10029205 - Nervous system disorders |
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E.1.3 | Condition being studied is a rare disease | No |
E.2 Objective of the trial |
E.2.1 | Main objective of the trial |
Initial treatment period:
To further evaluate the safety of natalizumab monotherapy by:
1) evaluating the risk of hypersensitivity and immunogenicity following re-exposure to natalizumab, and
2) confirming the safety of switching from interferon beta (IFNb), glatiramer acetate (GA), or other MS therapies to natalizumab.
Long term treatment period:
to evaluate the long term impact of natalizumab monotherapy on the progression of disability measured by EDSS changes over time. |
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E.2.2 | Secondary objectives of the trial |
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E.2.3 | Trial contains a sub-study | Yes |
E.2.3.1 | Full title, date and version of each sub-study and their related objectives |
Substudies are detailed in main protocol , version 7.1 Final dated 15 June 2012. The substudies to be performed in any of the involved countries are as follows:
- Axial fluid-attenuated inversion recovery (FLAIR) magnetic resonance
imaging (MRI) imaging
- Biological analysis for research into PML risk stratification
- Genetic analysis
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E.3 | Principal inclusion criteria |
1) must give written informed consent and provide all authorizations required by local law (e.g. Protected Health Information [PHI]
2) must be an MS subject who completed Study C-1801 or C-1802 and completed a Dosing Suspension Safety Evaluation (neurological examination or an MRI scan), or participated in Study IMA 04001 (STARS) or completed 48 weeks of treatment in Study 101-MS-322 in Canada. These subjects will be allowed to enter this study at the start of the Long Term Treatment period (week 52).
3) must be considered by the Investigator to be free of signs and symptoms suggestive of PML based on medical history, physical examination, or laboratory testing
4) must be willing to discontinue and remain free from concomitant immunosuppressive or immunomodulatory treatment (including IFNb and GA) for the duration of the study.
NOTE: Subjects who were found to be on placebo after being unblinded for a serious adverse event (SAE) in Study C-1801 or C-1802 are eligible to enroll in this study if they completed a Dosing Suspension Safety Evaluation, receive approval from the Biogen Idec Medical Director or the relevant Advisory Committee, meet all other inclusion criteria for this study, and are not excluded based on the exclusion criteria for this study. |
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E.4 | Principal exclusion criteria |
Medical History
1. 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
2. history of persistent anti-natalizumab antibodies, based upon testing from prior natalizumab studies
3. history of, or available abnormal laboratory results indicative of, any significant cardiac, endocrinologic, hematologic, hepatic, immunologic, metabolic, urologic, pulmonary, gastrointestinal, dermatologic, psychiatric (including major depression), renal, and/or other major disease that would preclude the administration of a recombinant humanized antibody immunomodulating agent for 48 weeks. The Investigator must re-review the subject’s medical fitness for participation and consider any diseases that would preclude treatment.
4. history of malignancy (subjects with basal cell carcinoma that has been completely excised prior to study entry remain eligible)
5. known history of human immunodeficiency virus infection or hematological malignancy
6. history of organ transplantation (including anti-rejection therapy)
7. history of severe allergic or anaphylactic reactions or known drug hypersensitivity
8. a significant change (as determined by the Investigator) in the subject’s medical history from their previous natalizumab study
9. a clinically significant infectious illness (e.g., cellulitis, abscess, pneumonia, septicemia) within 30 days prior to the Screening Visit in Study 101-MS-321
Treatment History
10. discontinued natalizumab in a previous study due to allergic reaction or any other SAE considered to be related to natalizumab treatment
11. discontinued study drug in Study C-1801 or C-1802 because of an AE or due to reasons other than significant disease progression (as defined in the C-1801 and C-1802 protocols)
12. treatment with immunosuppressant medications (e.g., mitoxantrone, cyclophosphamide, cyclosporine, azathioprine, methotrexate) within 3 months prior to screening
Miscellaneous
13. female subjects who are not postmenopausal for at least 1 year, surgically sterile (does not include tubal ligation), or willing to practice effective contraception (as defined by the Investigator) during the study
14. women who are breastfeeding, pregnant, or planning to become pregnant while on study
15. current enrollment in any other study treatment or disease study
16. unwillingness or inability to comply with the requirements of this protocol, including the presence of any condition (physical, mental, or social) that is likely to affect the subject's ability to comply with the study protocol
17. other unspecified reasons that, in the opinion of the Investigator and/or Biogen Idec, make the subject unsuitable for enrollment into this study.
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E.5 End points |
E.5.1 | Primary end point(s) |
Initial treatment period:
To further evaluate the safety of natalizumab monotherapy by evaluating the risk of hypersensitivity and immunogenicity following re-exposure to natalizumab, and confirming the safety of switching from IFNb, GA, or other MS therapies to natalizumab.
The safety endpoint under consideration will be the incidence of AEs. The incidence of development of antibodies to natalizumab will also be assessed.
Long-term treatment period:
To evaluate the long term impact of natalizumab monotherapy on the progression of disability measured by EDSS changes over time.
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E.5.1.1 | Timepoint(s) of evaluation of this end point |
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E.5.2 | Secondary end point(s) |
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E.5.2.1 | Timepoint(s) of evaluation of this end point |
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E.6 and E.7 Scope of the trial |
E.6 | Scope of the trial |
E.6.1 | Diagnosis | No |
E.6.2 | Prophylaxis | No |
E.6.3 | Therapy | Yes |
E.6.4 | Safety | Yes |
E.6.5 | Efficacy | Yes |
E.6.6 | Pharmacokinetic | No |
E.6.7 | Pharmacodynamic | No |
E.6.8 | Bioequivalence | No |
E.6.9 | Dose response | No |
E.6.10 | Pharmacogenetic | Yes |
E.6.11 | Pharmacogenomic | No |
E.6.12 | Pharmacoeconomic | No |
E.6.13 | Others | No |
E.7 | Trial type and phase |
E.7.1 | Human pharmacology (Phase I) | No |
E.7.1.1 | First administration to humans | No |
E.7.1.2 | Bioequivalence study | No |
E.7.1.3 | Other | No |
E.7.1.3.1 | Other trial type description | |
E.7.2 | Therapeutic exploratory (Phase II) | No |
E.7.3 | Therapeutic confirmatory (Phase III) | Yes |
E.7.4 | Therapeutic use (Phase IV) | No |
E.8 Design of the trial |
E.8.1 | Controlled | No |
E.8.1.1 | Randomised | No |
E.8.1.2 | Open | No |
E.8.1.3 | Single blind | No |
E.8.1.4 | Double blind | No |
E.8.1.5 | Parallel group | No |
E.8.1.6 | Cross over | No |
E.8.1.7 | Other | No |
E.8.2 | Comparator of controlled trial |
E.8.2.1 | Other medicinal product(s) | Information not present in EudraCT |
E.8.2.2 | Placebo | Information not present in EudraCT |
E.8.2.3 | Other | Information not present in EudraCT |
E.8.3 |
The trial involves single site in the Member State concerned
| No |
E.8.4 | The trial involves multiple sites in the Member State concerned | Yes |
E.8.4.1 | Number of sites anticipated in Member State concerned | 9 |
E.8.5 | The trial involves multiple Member States | Yes |
E.8.5.1 | Number of sites anticipated in the EEA | 85 |
E.8.6 Trial involving sites outside the EEA |
E.8.6.1 | Trial being conducted both within and outside the EEA | Yes |
E.8.6.2 | Trial being conducted completely outside of the EEA | No |
E.8.6.3 | If E.8.6.1 or E.8.6.2 are Yes, specify the regions in which trial sites are planned |
Belgium |
Canada |
Denmark |
France |
Ireland |
Italy |
Netherlands |
New Zealand |
Sweden |
Australia |
Czech Republic |
Finland |
Germany |
Hungary |
Spain |
Poland |
Switzerland |
Turkey |
United Kingdom |
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E.8.7 | Trial has a data monitoring committee | No |
E.8.8 |
Definition of the end of the trial and justification where it is not the last
visit of the last subject undergoing the trial
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E.8.9 Initial estimate of the duration of the trial |
E.8.9.1 | In the Member State concerned years | 9 |
E.8.9.1 | In the Member State concerned months | 3 |
E.8.9.1 | In the Member State concerned days | 0 |
E.8.9.2 | In all countries concerned by the trial years | 9 |
E.8.9.2 | In all countries concerned by the trial months | 3 |
E.8.9.2 | In all countries concerned by the trial days | 0 |