NCT05625776

Brief Summary

The effects of pain on cognitive performance have not been thoroughly investigated. Broadly, the purpose of this research is to investigate the effects of acute pain on performance of a variety of cognitive performance measures. The investigators hypothesize that acute pain impairs cognitive performance, particularly cognitive measures of working memory, attention, and processing speed.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
23

participants targeted

Target at below P25 for not_applicable

Timeline
Completed

Started Mar 2023

Shorter than P25 for not_applicable

Geographic Reach
1 country

1 active site

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

November 13, 2022

Completed
10 days until next milestone

First Posted

Study publicly available on registry

November 23, 2022

Completed
4 months until next milestone

Study Start

First participant enrolled

March 22, 2023

Completed
8 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

November 16, 2023

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

November 16, 2023

Completed
Last Updated

December 11, 2023

Status Verified

December 1, 2023

Enrollment Period

8 months

First QC Date

November 13, 2022

Last Update Submit

December 4, 2023

Conditions

Keywords

acute paincognitionpaincognitive abilityyoung adults

Outcome Measures

Primary Outcomes (2)

  • Digit Span Forward & Backward Test

    number of digits (numbers) that can be repeated back in the same (DS forward) or the reverse (DS backward( order from which they were presented

    the change between baseline and delivery (during application of intervention)

  • Trail Making Test A & B

    time required to draw a line connecting a series of numbers (TM-A) or a series of alternating letters and numbers (TM-B)

    the change between baseline and delivery (during application of intervention)

Secondary Outcomes (12)

  • Conner's Continuous Performance Test (CPT) 3

    the change between baseline and delivery (during application of intervention)

  • Hopkins Verbal Learning Test- Revised

    the change between baseline and delivery (during application of intervention)

  • Brief Visuospatial Memory Test- Revised

    the change between baseline and delivery (during application of intervention)

  • Stroop Test

    the change between baseline and delivery (during application of intervention)

  • Wisconsin Card Sorting Test

    the change between baseline and delivery (during application of intervention)

  • +7 more secondary outcomes

Study Arms (3)

Pain Stimulus

EXPERIMENTAL

Capsaicin combined with heat applied to intact skin

Procedure: pain delivery with capsaicin and heat

Distractor Somatosensory Stimulus

ACTIVE COMPARATOR

Sensory transcutaneous electrical nerve stimulation (TENS) applied to intact skin

Procedure: distractor delivery with sensory TENS

No Stimulus

NO INTERVENTION

Nothing applied to skin

Interventions

Experimental pain paradigm delivered (capsaicin cream combined with heat) that is short-term and painful but not harmful

Pain Stimulus

Distractor stimulus delivered (sensory TENS electrical stimulation) that is short-term and attention-demanding but not painful

Distractor Somatosensory Stimulus

Eligibility Criteria

Age18 Years - 35 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64)

You may qualify if:

  • years old
  • Self-identifying as generally medically healthy
  • Able to read, write and speak English
  • Able to provide informed consent
  • Willing to undergo the experimental pain or non-painful electrical stimulation, if selected

You may not qualify if:

  • Resting HR \< 50 or \> 100 bpm
  • Resting BP \< 90/60 or \> 140/95 mmHg
  • Any history or current mental health condition, learning/developmental disability or cognitive impairment, including ADD/ADHD, severe anxiety, severe depression, autism spectrum disorder, insomnia, mild cognitive impairment, etc.
  • Score on the MoCA \<23
  • Score on the GAD-7 ≥ 10
  • Score on the PHQ-2 ≥ 2 and score on the PHQ-9 ≥ 10
  • Any current (within last 3 month) or chronic medical conditions, including any musculoskeletal, cardiovascular, endocrine, pulmonary, metabolic, psychiatric or neurological diagnosis
  • Any implanted electronic medical devices (i.e., cardiac pacemakers, cardiac defibrillators, spinal cord neurostimulators)
  • Any impaired sensation or weakness in either lower extremity or in the area targeted for the stimulus
  • History of serious concussion or head injury, defined as a loss of consciousness for \> 5 minutes and/or requiring medical treatment, or \> 2 concussions over the lifespan
  • Any history of acute or chronic problems with balance, any dizziness, or \> 1 fall in the last 12 months
  • Taking 4 or more medications
  • Currently or regularly using any analgesic medications, over-the-counter remedies, or any other treatment for the purposes of pain relief (i.e., baby aspirin for heart health permitted, etc.)
  • Any current or chronic pain condition during the last year, located anywhere in the body
  • Allergy to capsaicin or hot peppers
  • +4 more criteria

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

University of Delaware

Newark, Delaware, 19713, United States

Location

MeSH Terms

Conditions

Acute PainPain

Interventions

CapsaicinHot Temperature

Condition Hierarchy (Ancestors)

Neurologic ManifestationsSigns and SymptomsPathological Conditions, Signs and Symptoms

Intervention Hierarchy (Ancestors)

Polyunsaturated AlkamidesAmidesOrganic ChemicalsAlkenesHydrocarbons, AcyclicHydrocarbonsCatecholsPhenolsBenzene DerivativesHydrocarbons, AromaticHydrocarbons, CyclicSolanaceous AlkaloidsAlkaloidsHeterocyclic CompoundsFatty Acids, MonounsaturatedFatty Acids, UnsaturatedFatty AcidsLipidsTemperatureThermodynamicsPhysical PhenomenaWeatherAtmosphereEnvironmentEcological and Environmental PhenomenaBiological PhenomenaMeteorological ConceptsEnvironment and Public Health

Study Officials

  • Susanne M Morton, PhD

    University of Delaware

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
NONE
Masking Details
Application of pain or attentional control or no stimulus cannot be masked from participants, nor from outcomes assessors.
Purpose
BASIC SCIENCE
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Associate Professor

Study Record Dates

First Submitted

November 13, 2022

First Posted

November 23, 2022

Study Start

March 22, 2023

Primary Completion

November 16, 2023

Study Completion

November 16, 2023

Last Updated

December 11, 2023

Record last verified: 2023-12

Locations