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CognitionPhase 2NCT03893032

Enhancing Operational Performance in Healthy Rested Soldiers With Pharmacological Stimulants

A Phase 2 study testing Modafinil 200mg and mixed amphetamine salts in people with Cognition, run by United States Army Aeromedical Research Laboratory at 1 site in United States.

Unknown status

Status not confirmed. The sponsor has not verified this record for over two years, so it may be out of date.

Official record
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Trial summary

Considerable research has documented the optimization utility of stimulants in sleep deprived Soldiers and aviators, however, the research for enhancement purposes has demonstrated mixed results. Read more about this study

Who is it for?
Ages 18 to 40 years, men onlyHealthy volunteers can take part
Conditions the study is for
Cognition
What is being tested?
Modafinil 200mg and mixed amphetamine salts
Type of treatment
Pill or oral medicine
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
80 participants
Where
1 siteUnited States
Study dates
17 Jul 2019to Oct 2019
Phase
Phase 2
Are there results?
None posted in the registry

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 40 years
  • Men only
  • Healthy volunteers accepted
  • Adult

Who may be able to join

  • Must be at least 18 years old.
  • Must have normal hearing, vision or corrected to normal vision, and cognitive function as determined by self-report
  • Must have obtained at minimum 6 hours of sleep prior to all testing sessions, as assessed by actigraphy data and self-report. Should the actiwatch malfunction, reliance on self-report will suffice. If the subject does not meet this requirement, he will be asked to reschedule
  • Must have refrained from consumption of stimulants (including caffeine) and over the counter medications which may induce drowsiness for a minimum of 16 hours prior to each test session, and nicotine, 8 hours, prior to all testing sessions, assessed by self-report.

Who cannot join

  • Currently taking medications which induce drowsiness, such as over-the-counter antihistamines. Any self-medication will be assessed through self-report.
  • No current medical conditions or medications affecting cognitive function or attention as determined by screening by study physician or medical practitioner
  • Current or recent use (as determined by study physician or medical practitioner) of medications that may interact with the test articles. Determined by self-report and exclusion at the discretion of the study physician or medical practitioner.
  • Any history of any attention deficit condition requiring medication. A history of any attention deficit condition with medication is disqualifying as the potential interactions with testing are unknown and would therefore produce a potential source of confounding or bias into the results of the study.
  • Any history of psychological/psychiatric disorder.
  • Any history of addiction or substance abuse as assessed through self-report.
Show all 11Show fewer
  • Any history of metabolic disorder such as dysthyriodism.
  • Any history of significant cardiovascular disease or hypertension.
  • Any history of hepatic or renal disorder.
  • Females will be excluded given that the drugs administered could potentially negatively impact the very early stages of pregnancy.
  • Any ingestion of substances that may interact with the test articles or potentially skew the results within the last 16 hours prior to testing including over-the-counter medications, supplements, etc. (see attached list to be reviewed with subject).

Trial locations and contacts

1 site in 1 country.

Amanda M Kelley, PhD contact

334-498-2456

amanda.m.kelley.civ@mail.mil

United States1 site, 1 recruiting
  • US Army Aeromedical Research Laboratory

    Fort Rucker, Alabama, 36362

    Amanda M Kelley, PhD, 334-498-2456, amanda.m.kelley.civ@mail.mil

    Recruiting

Other trials in United States

About this study

Considerable research has documented the optimization utility of stimulants in sleep deprived Soldiers and aviators, however, the research for enhancement purposes has demonstrated mixed results. One significant factor that may influence enhancement properties is general intelligence such that low performers exhibit stronger enhancement effects than high performers. The objective of this study is to determine whether stimulants (specifically, modafinil and Adderall) can enhance Soldier cognitive abilities and performance on military tasks. To do so, a within-subjects design will be employed using healthy, rested Soldiers and measuring performance on a set of basic cognitive assessments and operationally relevant tasks.

Conditions
Cognition
Being tested
Modafinil 200mg, mixed amphetamine salts, Placebo

What participants receive

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

  • Modafinil 200mgDrug

    single 200 mg dose

  • mixed amphetamine saltsDrug

    single 10 mg dose

  • PlaceboDrug

    single oral-administration placebo tablet

Study groups in NCT03893032
Study groupRoleWhat they receive
Modafinil 200mgExperimentalsingle, 200 mg dose of modafinil
Receives: Drug: Modafinil 200mg
mixed amphetamine saltsExperimentalsingle 10 mg dose of mixed amphetamine salts
Receives: Drug: mixed amphetamine salts
placeboPlacebo comparatorplacebo
Receives: Drug: Placebo

What is being measured

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

  1. change from baseline in working memory performance

    Digit span task

    Measured: 2-hours post-dosing

  2. change from baseline in selective attention performance

    Stroop test

    Measured: 2-hours post-dosing

  3. change from baseline in sustained attention performance

    Rapid Visual Information Processing Task

    Measured: 2-hours post-dosing

  4. change from baseline in executive function performance

    Digit symbol substitution task

    Measured: 2-hours post-dosing

  5. change from baseline in marksmanship performance

    number of targets acquired on marksmanship trainer

    Measured: 2-hours post-dosing

Secondary outcomes (3)
  1. change from baseline in impulsivity

    Stop signal task - response inhibition

    Measured: 2-hours post-dosing

  2. change from baseline in impulsivity

    Continuous Performance test - rapid response initiation

    Measured: 2-hours post-dosing

  3. change from baseline in risk-taking behavior

    Evaluation of Risks Scale; measures individual variability in risk assessment; three scores are produced ("need for control", "self-confidence", "risk/thrill seeking"), all scores range from 0 to 100 with higher scores indicating a higher degree of the construct (e.g., higher risk/thrill seeking scores indicate a greater degree of risk/thrill seeking)

    Measured: 2-hours post-dosing

Timeline

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

  1. First posted27 Mar 2019
  2. Study start17 Jul 2019
  3. Primary completionOct 2019 (estimated)
  4. Study completionOct 2019 (estimated)

Resources

More details

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

Study design
Study type
Interventional
Phase
Phase 2
Primary purpose
Other
Allocation
Randomised
Intervention model
Parallel groups
Masking
Double blind
Who is masked
Participant, Investigator
Enrolment
80 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03893032
Sponsor's protocol ID
USAARL 2018-007; IRB M-10746
Status last verified
Jul 2019
First submitted
25 Mar 2019
Last updated
31 Jul 2019
Results posted
No
Data monitoring committee
No
FDA-regulated drug
Yes
FDA-regulated device
No

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing Modafinil 200mg and mixed amphetamine salts in people with Cognition, run by United States Army Aeromedical Research Laboratory at 1 site in United States.

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 4 inclusion and 11 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: status not confirmed, as of the sponsor's last update on 31 Jul 2019. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

Results are not available in the source record.

How can a doctor refer a patient or contact the research team?

Contact Amanda M Kelley, PhD (334-498-2456, amanda.m.kelley.civ@mail.mil), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

change from baseline in working memory performance (time frame: 2-hours post-dosing). The study lists 5 primary outcomes in all. 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 31 Jul 2019.

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