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Relapsing Multiple SclerosisKRONOSNCT05776888

Early Versus Late Ofatumumab (Kesimpta®) Use in Austrian RMS-Patients Over 2 Years

An observational study of Relapsing Multiple Sclerosis, run by Novartis Pharmaceuticals.

Active, not recruiting

Under way, not looking for participants. Everyone needed has enrolled. The study is still running.

Official record
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Trial summary

This non-interventional study aims to observe the effect of early versus late Ofatumumab treatment in RMS patients in a real-world setting in Austria over an observational period of 24 months. Read more about this study

Who is it for?
Ages 18 to 99 years
Conditions the study is for
Relapsing Multiple Sclerosis
What is being tested?
Ofatumumab
How many people
106 participants
Where
No sites listed yet
Study dates
10 Jul 2023to 31 Dec 2026
Phase
Observational
Are there results?
Not yet: the study is under way

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 to 99 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Study population: The study population will include male and female patients (aged ≥ 18 years) with a documented diagnosis of RMS and treated for at least 3 months with Ofatumumab

Who may be able to join

  • Patients with relapsing multiple sclerosis (RMS) with disease activity defined by clinical assessment or MRI analysis.
  • Written informed consent must be obtained before participating in the study.
  • Patient is willing and able to complete the assessments, as outlined in this study.
  • Diagnosis of RMS per McDonald Criteria (2017) occurred prior to initiation of Ofatumumab.
  • Patients in both cohorts must have been on treatment with Ofatumumab for at least 3 months, but not longer than 12 months prior to inclusion in the study.
  • Cohort 1: Patients that, before initiation of Ofatumumab, were either treatment naive or have started their treatment for RMS with another disease modifying therapy (BRACE, teriflunomide or fumarates). Non-naive patients in this cohort must have started the use of Ofatumumab within 3 years after first DMT initiation.
  • Cohort 2: Patients must have been on either BRACE or Teriflunomide or fumarates for at least three years or longer before the switch to Ofatumumab has been initiated. Thus, this cohort includes patients that use Ofatumumab as second or later line DMT.

Who cannot join

  • Patients who have been on Ofatumumab less than 3 months or more than 12 months before inclusion.
  • Use of investigational drugs during the study, OR between Ofatumumab initiation and inclusion into the study, OR within 5 half-lives of investigational drug before Ofatumumab initiation, OR until the expected pharmacodynamic effect has returned to baseline, whichever is longer.
  • Use of any high efficacy therapy (including Fingolimod, Siponimod, Ponesimod, Ozanimod, Rituximab, Ocrelizumab, Natalizumab, Alemtuzumab, Mitoxantron or Cladribine) in either cohort prior to the initiation of Ofatumumab.
  • Previous use of any DMTs other than BRACE, Teriflunomide or fumarates prior to the initiation of Ofatumumab.

About this study

Official title: Early Versus Late Ofatumumab (Kesimpta®) Use in Austrian RMS-Patients Over 2 Years- A Non-interventional Observational Study

This non-interventional study aims to observe the effect of early versus late Ofatumumab treatment in RMS patients in a real-world setting in Austria over an observational period of 24 months.

Read the detailed description

This multi-center, observational study will describe the effects of Ofatumumab in 2 cohorts in a routine medical care setting. Cohort one will comprise patients who have started Ofatumumab early during their disease (treatment naive patients or those that started Ofatumumab within 3 years of first therapy initiation). Cohort two will include patients who have been on other DMTs (one or several) for a minimum of 3 years prior to switching to Ofatumumab. Patients in both cohorts will be observed for two years.

Being tested
Ofatumumab
Keywords
relapsing multiple sclerosis, RMS, Ofatumumab, NIS

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • OfatumumabOther

    There is no treatment allocation. For both cohorts, only patients that have received Ofatumumab treatment for at least 3 months prior to inclusion in the study will be enrolled.

Study groups in NCT05776888
Study groupRoleWhat they receive
Early Treatment Cohort (Cohort 1)Patients that, before initiation of Ofatumumab, were either treatment naive or have started their treatment for RMS with another disease modifying therapy (BRACE, teriflunomide or fumarates). Non-naive patients in this cohort must have started the use of Ofatumumab within 3 years after first DMT initiation.
Receives: Other: Ofatumumab
Later Treatment Cohort (Cohort 2)Patients that have been on BRACE and/or Teriflunomide and/or fumarates for at least three years or longer before the switch to Ofatumumab has been initiated.
Receives: Other: Ofatumumab

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Proportion of patients demonstrating NEDA-3

    Proportion and comparison of patients in both cohorts achieving NEDA-3 in the second year after treatment initiation, which refers to a comparison between month 12 and 24 after Ofatumumab treatment was initiated. NEDA-3 is defined by no confirmed MS relapse, no new or enlarging T2 lesions, no new Gadolinium-positive T1 lesions (in case Gadolinium was utilized), and no six-month confirmed disability worsening.

    Measured: from month 12 up to month 24

Secondary outcomes (2)
  1. Proportion of patients displaying NEDA-3, as well as individual NEDA components

    Proportion of patients displaying NEDA-3, as well as individual NEDA components (i) experiencing no confirmed clinical relapses, (ii) lack of diseases progression measured by expanded disability status scale (EDSS) and (iii) absence of new disease activity (new or enhancing T2 or Gadolinium-positive T1 lesions (in case Gadolinium was utilized)), respectively, in the first treatment year (Baseline to month 12), the second treatment year (month 12 to month 24) as well as over the whole study period (Baseline to month 24).

    Measured: Baseline, month 12, month 24

  2. Proportion of patients permanently discontinuing Ofatumumab during the study

    Proportion of patients permanently discontinuing Ofatumumab during the study, and reasons for discontinuation will be provided

    Measured: Up to 24 months

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted20 Mar 2023
  2. Study start10 Jul 2023
  3. Primary completion16 Dec 2026 (estimated)
  4. Study completion31 Dec 2026 (estimated)

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Observational
Observational model
Cohort
Time perspective
Prospective
Enrolment
106 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT05776888
Sponsor's protocol ID
COMB157GAT02
Acronym
KRONOS
Status last verified
Oct 2026
First submitted
27 Feb 2023
Last updated
28 Oct 2026
Results posted
No
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

An observational study of Relapsing Multiple Sclerosis, run by Novartis Pharmaceuticals.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 7 inclusion and 4 exclusion criteria. 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: under way, not looking for participants, as of the sponsor's last update on 28 Oct 2026. Status can change between updates, so confirm with the study contact before making plans.

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.

Are results available for this study?

This study is still under way. Results are not available in the source record yet.

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?

Proportion of patients demonstrating NEDA-3 (time frame: from month 12 up to month 24). 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 28 Oct 2026.

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