NCT04538872

Brief Summary

This study is a randomized controlled study in which we aim to include 60 persons with Multiple Sclerosis and 30 healthy controls. Two different learning strategies, an explicit and an implicit one, will be compared on effects on dual task performance. Further, clinical profile associated with these effects, and brain activity measured by functional near-infrared spectroscopy during dual tasking will be investigated. To this end, the study will cover 4 days: Day 1: examine clinical profile; Day 2: baseline dual task measures; Day 3: experimental learning paradigm with subjects randomly assigned to either the implicit or the explicit learning condition. Day 4: delayed retention dual task and fNIRS measures.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
37

participants targeted

Target at P25-P50 for not_applicable multiple-sclerosis

Timeline
Completed

Started Sep 2020

Shorter than P25 for not_applicable multiple-sclerosis

Geographic Reach
1 country

2 active sites

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

August 31, 2020

Completed
1 day until next milestone

Study Start

First participant enrolled

September 1, 2020

Completed
3 days until next milestone

First Posted

Study publicly available on registry

September 4, 2020

Completed
8 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

April 30, 2021

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

April 30, 2021

Completed
Last Updated

September 2, 2021

Status Verified

September 1, 2021

Enrollment Period

8 months

First QC Date

August 31, 2020

Last Update Submit

September 1, 2021

Conditions

Outcome Measures

Primary Outcomes (14)

  • Dual task (STEP + substraction sevens)

    participants will step as fast as possible on a tile that lights up in a goal-directed stepping task on a platform consisting of 21 stepping tiles. Concurrently, they will perform a cognitive task in which they continuously subtract sevens, starting from a 3-digit given start number. Duration of the task depends on the speed of the participant (42 steps).

    day 2

  • Dual task (STEP + substraction sevens)

    participants will step as fast as possible on a tile that lights up in a goal-directed stepping task on a platform consisting of 21 stepping tiles. Concurrently, they will perform a cognitive task in which they continuously subtract sevens, starting from a 3-digit given start number. Duration of the task depends on the speed of the participant (42 steps).

    day 4

  • Dual task (STEP + phonetic word list generation)

    participants will step as fast as possible on a tile that lights up in a goal-directed stepping task on a platform consisting of 21 stepping tiles. Concurrently, they will perform a cognitive task in which they try to come up with as many words as possible starting with a given letter. Duration of the task depends on the speed of the participant (42 steps).

    day 2

  • Dual task (STEP + phonetic word list generation)

    participants will step as fast as possible on a tile that lights up in a goal-directed stepping task on a platform consisting of 21 stepping tiles. Concurrently, they will perform a cognitive task in which they try to come up with as many words as possible starting with a given letter. Duration of the task depends on the speed of the participant (42 steps).

    day 4

  • Dual task (STEP + Auditory vigilance)

    participants will step as fast as possible on a tile that lights up in a goal-directed stepping task on a platform consisting of 21 stepping tiles. Concurrently, they will perform a cognitive task in which they hear a string of letters (1 every 2.5 seconds) and are asked to respond as quickly as possible when they hear the target letter 'L' or 'R'. Duration of the task depends on the speed of the participant (42 steps).

    day 2

  • Dual task (STEP + Auditory vigilance)

    participants will step as fast as possible on a tile that lights up in a goal-directed stepping task on a platform consisting of 21 stepping tiles. Concurrently, they will perform a cognitive task in which they hear a string of letters (1 every 2.5 seconds) and are asked to respond as quickly as possible when they hear the target letter 'L' or 'R'. Duration of the task depends on the speed of the participant (42 steps).

    day 4

  • Dual Task (WALK + Subtraction sevens)

    participants will walk on their comfortable, preferred walking speed on a 30-meter walkway. Concurrently, they will perform a cognitive task in which they continuously subtract sevens, starting from a 3-digit given start number. Duration of the task is 30 seconds.

    day 2

  • Dual Task (WALK + Subtraction sevens)

    participants will walk on their comfortable, preferred walking speed on a 30-meter walkway. Concurrently, they will perform a cognitive task in which they continuously subtract sevens, starting from a 3-digit given start number. Duration of the task is 30 seconds.

    day 4

  • Dual Task (WALK + Word list generation (phonetic)

    participants will walk on their comfortable, preferred walking speed on a 30-meter walkway. Concurrently, they will perform a cognitive task in which they try to come up with as many words as possible starting with a given letter. Duration of the task is 30 seconds.

    day 2

  • Dual Task (WALK + Word list generation (phonetic)

    participants will walk on their comfortable, preferred walking speed on a 30-meter walkway. Concurrently, they will perform a cognitive task in which they try to come up with as many words as possible starting with a given letter. Duration of the task is 30 seconds.

    day 4

  • Dual Task (WALK + Auditory vigilance)

    participants will walk on their comfortable, preferred walking speed on a 30-meter walkway. Concurrently, they will perform a cognitive task in which they hear a string of letters (1 every 2.5 seconds) and are asked to respond as quickly as possible when they hear the target letter 'L' or 'R'. Duration of the task is 30 seconds.

    day 2

  • Dual Task (WALK + Auditory vigilance)

    participants will walk on their comfortable, preferred walking speed on a 30-meter walkway. Concurrently, they will perform a cognitive task in which they hear a string of letters (1 every 2.5 seconds) and are asked to respond as quickly as possible when they hear the target letter 'L' or 'R'. Duration of the task is 30 seconds.

    day 4

  • learning measure

    participants will step as fast as possible on a tile that lights up in a goal-directed stepping task on a platform consisting of 21 stepping tiles. The outcome measure on this task is response time (time from the moment the tile lights up, until the participant steps on the tile).

    Day 3

  • fNIRS measure (functional near-infrared spectroscopy)

    a block-design test with 3 tasks (cognitive ST, motor ST and DT) of 25 seconds per task-block (repeated 5 times) will be conducted with a functional near-infrared spectroscopy (fNIRS) neuroimaging system to measure hemoglobin changes during performance of the task and compared between single task and dual task conditions and between groups. Besides, fNIRS will be used during 1 task related to the learning-paradigm.

    day 4

Secondary Outcomes (26)

  • Age

    day 1

  • height

    day 1

  • weight

    day 1

  • educational level questionnaire

    day 1

  • date of diagnosis questionnaire

    day 1

  • +21 more secondary outcomes

Study Arms (4)

MS group implicit

EXPERIMENTAL
Behavioral: StraDiMS implicit

MS group explicit

EXPERIMENTAL
Behavioral: StraDiMs explicit

HC group implicit (Healthy Controls)

ACTIVE COMPARATOR
Behavioral: StraDiMS implicit

HC group explicit (Healthy controls)

ACTIVE COMPARATOR
Behavioral: StraDiMs explicit

Interventions

participants perform a goal-directed stepping task and try to react as fast as possible by stepping on a tile that lights up. Response time (the time between the tile lighting up and the participant stepping on the tile) is the outcome measure of the task. The implicit learning conditions and the explicit learning condition differ from each other in the instructions given prior to the task. The latter group will get more knowledge on the task than the former.

HC group implicit (Healthy Controls)MS group implicit

participants perform a goal-directed stepping task and try to react as fast as possible by stepping on a tile that lights up. Response time (the time between the tile lighting up and the participant stepping on the tile) is the outcome measure of the task. The implicit learning conditions and the explicit learning condition differ from each other in the instructions given prior to the task. The latter group will get more knowledge on the task than the former.

HC group explicit (Healthy controls)MS group explicit

Eligibility Criteria

Age18 Years - 65 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • all participants: minimal cognitive function (MoCA ≥ 26)
  • Persons with MS:
  • Diagnosis of MS
  • EDSS 2.0 - 5.5
  • No relapse within the past 30 days.
  • Able to walk minimally 6 minutes consecutively and to step over the stepping platform without aid.

You may not qualify if:

  • Other medical conditions interfering with mobility.
  • Other neurological conditions.
  • Not able to understand instructions.
  • Major (unresolvable) problems with hearing or vision.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (2)

Noorderhart

Overpelt, 3900, Belgium

Location

National MS Center Melsbroek

Steenokkerzeel, 1820, Belgium

Location

MeSH Terms

Conditions

Multiple Sclerosis

Condition Hierarchy (Ancestors)

Demyelinating Autoimmune Diseases, CNSAutoimmune Diseases of the Nervous SystemNervous System DiseasesDemyelinating DiseasesAutoimmune DiseasesImmune System Diseases

Study Officials

  • Peter Feys, prof. dr.

    Hasselt University

    PRINCIPAL INVESTIGATOR
  • Renee Veldkamp, drs.

    Hasselt University

    STUDY CHAIR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
PARTICIPANT
Purpose
OTHER
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Principal Investigator

Study Record Dates

First Submitted

August 31, 2020

First Posted

September 4, 2020

Study Start

September 1, 2020

Primary Completion

April 30, 2021

Study Completion

April 30, 2021

Last Updated

September 2, 2021

Record last verified: 2021-09

Locations