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CompletedNCT03516526PDNMSUpdated Jul 12, 2019

Towards Personalized Dosing of Natalizumab in Multiple Sclerosis

A Phase 4 interventional study of Natalizumab in Multiple Sclerosis, sponsored by Amsterdam UMC, location VUmc. Completed at 5 sites in Netherlands. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2019-07-12.

Sponsored by Amsterdam UMC, location VUmc · Phase 4, Interventional, and Treatment

From the registry’s dates

  • Registered 1 year 5 months after the study started (first participant enrolled Nov 2016, registered Apr 2018).
Phase
Phase 4
Study type
Interventional
Enrollment
61
Allocation
Not applicable
Ages
18 Years and older
Sex
All
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Study summary

A prospective clinical trial with the aim of maintaining drug efficacy of natalizumab while extending dose intervals guided by drug concentrations in patients with relapsing remitting multiple sclerosis.

Read the detailed description

Our main objective is to prove that extending dose intervals guided by natalizumab serum concentrations, will not result in radiological or clinical disease activity in completely stable RRMS patients treated with natalizumab. Adult patients with RRMS with no evident disease activity during the last 12 months of natalizumab infusions with a minimum treatment of 12 months wil be included. Before subsequent natalizumab infusions, serum concentrations will be evaluated. If the concentration exceeds 15μg/ml the dose interval will be extended with a week to a maximum of eight weeks. Patients will get regular brain MRI scans and clinical follow-up.

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Conditions studied

  • Multiple Sclerosis

Keywords

  • natalizumab
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In context

Multiple Sclerosis

3,460 studies on the registry are indexed under Multiple Sclerosis; 661 are open to participants now.

This study's enrollment of 61 is above the median of 50 across 2,342 interventional studies indexed under Multiple Sclerosis.

Browse Multiple Sclerosis studies →

Lead sponsor

Amsterdam UMC, location VUmc is the lead sponsor of 302 studies on the registry; 84 are open to participants now.

Counted across the registry records on this site, refreshed daily.

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Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  • Relapsing-remitting multiple sclerosis (RRMS) according to the McDonald criteria, revised by Polman 2010
  • Natalizumab treatment for 12 months or longer at inclusion.
  • An expanded disability status scale (EDSS) score of 0.0-6.0 at baseline.
  • Natalizumab level of ≥15 μg/ml
  • Written informed consent.

Exclusion criteria

Exclusion Criteria:

  • Any MS disease activity (radiologically or clinically) during the last 12 months of natalizumab treatment.
  • Unable to undergo frequent MRI.
  • The use of other immunomodulatory medication other than natalizumab.
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Study design

Phase
Phase 4
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
61 participants (actual)

Study arms

  • Other
    All patients in this study

    Patients treated with natalizumab with a minimum of 1 year, without signs of disease activity (relapses, new T2 lesions on MRI) for a minimum of 1 year.

    Drug: Natalizumab

Interventions

  • DrugNatalizumab

    Extending dose intervals of natalizumab from 4 weeks to maximum of 8 weeks based on trough natalizumab concentrations

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What researchers measure

Primary outcomes

  1. Gadolinium enhancing T1 lesions on brain MRI

    Occurrence and number of gadolinium enhancing T1 lesions of brain MRI

    Time frame: 12 months

Secondary outcomes

  1. New T2 lesions on brain MRI

    Occurrence and number of new T2 lesions on brain MRI

    Time frame: 12 months

  2. Relapses

    scoring MS exacerbations

    Time frame: 12 months

  3. EDSS

    Expanded Disability Status Scale: clinical scoring of disability in MS patients

    Time frame: 12 months

  4. MSFC

    Multiple Status Functional Composite: clinical scoring of disability in MS patients

    Time frame: baseline and 12 months

  5. patient perspective measured with the SF-36

    questionnaire: Short Form-36

    Time frame: baseline and 12 months

  6. patient perspective measured with the MSIS-29

    questionnaire: Multiple Sclerosis Impact Scale-29

    Time frame: baseline and 12 months

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Study locations

5 sites
  • OLVG
    Amsterdam, Netherlands
  • VU medical center
    Amsterdam, Netherlands
  • Rijnstate Hospital
    Arnhem, Netherlands
  • Erasmus medical center
    Rotterdam, Netherlands
  • St. Antonius Hospital
    Utrecht, Netherlands
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References and documents

Individual participant data

Plan to share: Undecided

No publications or documents are linked to this record.

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Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Jul 12, 2019, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT03516526
Lead sponsor
Amsterdam UMC, location VUmc
Collaborators
Prothya Biosolutions, Erasmus Medical Center, St. Antonius Hospital, OLVG, Rijnstate Hospital
Responsible party
Zoé van Kempen (Coordinating investigator, Amsterdam UMC, location VUmc) — Principal investigator
First posted
May 4, 2018
Start date
Nov 3, 2016
Primary completion
Jun 21, 2019
Completion
Jul 1, 2019
Last update
Jul 12, 2019

Study contacts

Joep Killestein, Dr.
principal investigator · Amsterdam UMC, location VUmc

Oversight

Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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This study is completed, as verified in Jul 2019. You cannot join it, but the record below documents what was studied.

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