NCT05243186

Brief Summary

Randomized clinical trial in which individuals who have been diagnosed with ADHD and are regularly treated with Methylphenidate will be test for cognitive performance and will be randomly examined in the following four conditions:

  • While taking Methylphenidate and sitting at a desk
  • While taking Methylphenidate and walking on a treadmill workstation
  • Without taking Methylphenidate while sitting at a desk
  • Without taking Methylphenidate while walking on a treadmill workstation The investigators will compare the cognitive achievements outcomes and evaluate the efficiency of studying in each of these four conditions.

Trial Health

43
At Risk

Trial Health Score

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

Trial has exceeded expected completion date
Enrollment
30

participants targeted

Target at P25-P50 for phase_2

Timeline
Completed

Started Oct 2021

Shorter than P25 for phase_2

Geographic Reach
1 country

1 active site

Status
unknown

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

Study Start

First participant enrolled

October 1, 2021

Completed
4 months until next milestone

First Submitted

Initial submission to the registry

January 23, 2022

Completed
24 days until next milestone

First Posted

Study publicly available on registry

February 16, 2022

Completed
5 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

July 1, 2022

Completed
3 months until next milestone

Study Completion

Last participant's last visit for all outcomes

October 1, 2022

Completed
Last Updated

March 31, 2022

Status Verified

October 1, 2021

Enrollment Period

9 months

First QC Date

January 23, 2022

Last Update Submit

March 16, 2022

Conditions

Keywords

Attention Deficit DisorderCognitive performanceTreadmill

Outcome Measures

Primary Outcomes (3)

  • Stroop performance

    The Stroop task measures selectivity and distraction and evaluate the inhibitory ability. In this task a word is displayed in two coloured rectangles. Three states are included: Neutral state- where the word is colored in black; Congruent state- word's meaning and its color correspond; Non-congruent state- word's meaning does not match the color. For each state, parameters are shown separately. Calculated parameters include Mean reaction time of correct responses± the standard deviation of correct reaction times and errors- number of incorrect responses, where subjects pressed the wrong key. The scale of mean response time displays the mean score number of milliseconds for a subject to response (higher number present longer time of response- worse outcome). Higher standard deviation indicates larger distribution among the averages of the subjects. Errors count the times that subjects made mistakes in their answers starting from zero- higher score means worse outcome.

    Through study completion, an average of 1 year

  • Barhatt performance

    Barhatt performance is a validated questionnaire that includ 30 statements designed to assess impulsivity. The values on a 4-point scale rang from 1 ("never/rarely "), 2 ("sometimes"), 3 ("frequently"), and 4 ("almost always/always"). These statements create three subscales/ dimensions: 1. Motor Impulsiveness (MI), which reflects action without forethought (for example, "I do things without thinking"), 2. Attentional Impulsiveness (AI), which reflects a reduced ability to maintain attention toward a stimulus (for example, "I concentrate easily"), and 3. Non-Planning Impulsiveness (N-PI), which reflects an emphasis on the present (for example, "I am more interested in the present than the future"). In all these three dimensions higher mean score represent higher impulsivity.

    Through study completion, an average of 1 year

  • Breaks from work

    Number and length of breaks the participants took from their cognitive work. The values represent the mean number of breaks subjects took during their working time, higher numbers represent more breaks. As well the mean time of breaks in minutes where higher number represents longer time of break.

    Through study completion, an average of 1 year

Study Arms (4)

MPH walking

EXPERIMENTAL

The participants will be instructed to work while taking Methylphenidate and walking on a treadmill workstation

Device: Treadmill workstationDrug: Methylphenidate

MPH sitting

PLACEBO COMPARATOR

The participants will be instructed to work while taking Methylphenidate and sitting at a desk

Drug: Methylphenidate

No MPH walking

PLACEBO COMPARATOR

The participants will be instructed to work without taking Methylphenidate while walking on a treadmill workstation

Device: Treadmill workstation

No MPH sitting

PLACEBO COMPARATOR

The participants will be instructed to work without taking Methylphenidate while sitting at a desk

Device: Treadmill workstationDrug: Methylphenidate

Interventions

walking on a treadmill workstation next to desk with computer and screen

Also known as: Walking on a treadmill workstation
MPH walkingNo MPH sittingNo MPH walking

Using prescription drug

Also known as: Ritalin
MPH sittingMPH walkingNo MPH sitting

Eligibility Criteria

Age20 Years - 60 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64)

You may qualify if:

  • \* Insured by Maccabi Health Services
  • Diagnosed with ADHD by Neurologist/Psychiatrist/Developmental Doctor
  • Take Methylphenidate as part of the treatment for ADHD AND have agreed to not take the drug if asked to
  • Understand the language and simple instruction
  • Willing to participate in the study and sign the agreement form

You may not qualify if:

  • Suffer from heart disease or chronic respiratory illness
  • Women who are pregnant

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Ariel University

Ariel, 40700, Israel

RECRUITING

Related Publications (1)

  • Korn L, Hassan K, Fainshtein N, Yusov N, Davidovitch N. Non-Medical Use of Prescription Stimulants for Treatment of Attention Disorders by University Students: Characteristics and Associations. Med Sci Monit. 2019 May 21;25:3778-3787. doi: 10.12659/MSM.913973.

    PMID: 31111829BACKGROUND

MeSH Terms

Conditions

Attention Deficit Disorder with Hyperactivity

Interventions

Methylphenidate

Condition Hierarchy (Ancestors)

Attention Deficit and Disruptive Behavior DisordersNeurodevelopmental DisordersMental Disorders

Intervention Hierarchy (Ancestors)

PhenylacetatesAcids, CarbocyclicCarboxylic AcidsOrganic ChemicalsPiperidinesHeterocyclic Compounds, 1-RingHeterocyclic Compounds

Study Officials

  • Liat Korn, PhD

    Ariel University

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Liat Korn, PhD

CONTACT

Gideon Koren, Prof.

CONTACT

Study Design

Study Type
interventional
Phase
phase 2
Allocation
RANDOMIZED
Masking
NONE
Masking Details
There are no masking in the study. All parties have all the information regard the conditions of the study.
Purpose
OTHER
Intervention Model
CROSSOVER
Model Details: All participants will participate in four different sessions of the study that will be randomly crossed over.
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

January 23, 2022

First Posted

February 16, 2022

Study Start

October 1, 2021

Primary Completion

July 1, 2022

Study Completion

October 1, 2022

Last Updated

March 31, 2022

Record last verified: 2021-10

Data Sharing

IPD Sharing
Will share

The result of the study will be analyzed. A paper will be submitted to an international journal with study description including methods, examination protocol results.

Shared Documents
STUDY PROTOCOL, SAP, CSR
Time Frame
One year
Access Criteria
Pending collaborators decision.

Locations