- ICH GCP
- US Clinical Trials Registry
- Klinisk forsøg NCT02166164
Characterization of Secondary Hyperalgesia in Healthy Volunteers
In this prospective trial we aim to investigate the intra-individual and inter-individual variance in secondary hyperalgesia following pain elicited by the experimental pain model: Brief Thermal Sensitization.
Furthermore we wish to investigate how precise the psychological tests, Pain Catastrophizing Scale and Hospital Anxiety and Depression Scale predict the size of the area of secondary hyperalgesia.
Studieoversigt
Status
Betingelser
Intervention / Behandling
Undersøgelsestype
Tilmelding (Forventet)
Fase
- Ikke anvendelig
Kontakter og lokationer
Studiesteder
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Copenhagen, Danmark, 2100
- Department of anaesthesia and surgery, 4231, Rigshospitalet
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Deltagelseskriterier
Berettigelseskriterier
Aldre berettiget til at studere
Tager imod sunde frivillige
Køn, der er berettiget til at studere
Beskrivelse
Inclusion Criteria:
- Age >18 years and <35 years
- Speak and understand Danish
- Male gender
- Test subjects who have understood and signed the informed consent
- No prescription medicine during the last 30 days
Exclusion Criteria:
- Test subjects that cannot cooperate to the test
- Test subjects with an alcohol and/or substance abuse, assessed by the investigator
- Test subjects, who have consumed one or several types of analgesics 2 <days before the study
- Test subjects, who have consumed antidepressant medication during the last 30 days before the study
- Test subjects with chronic pain
- Test subjects with psychiatric diagnoses
- Test subjects with tattoos on the extremities
- Body Mass Index of >30 or <18
Studieplan
Hvordan er undersøgelsen tilrettelagt?
Design detaljer
- Primært formål: Grundvidenskab
- Tildeling: N/A
- Interventionel model: Enkelt gruppeopgave
- Maskning: Ingen (Åben etiket)
Våben og indgreb
Deltagergruppe / Arm |
Intervention / Behandling |
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Eksperimentel: Experiemental pain models
all study participants will be tested with the same experimental pain models: Brief thermal sensitization, Long thermal stimulation, and Heat-pain-detection threshold.
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Et lille område af undersøgelsesdeltagernes hud opvarmes til 45 grader celsius i 3 minutter, efterfulgt af evaluering af sekundær hyperalgesi.
Andre navne:
A small area of the skin of the study participants are heated to 45 degrees celsius for 1 minute.
During the 1 minute period, the study participant will continually report pain on an electronic visual analog scale.
Andre navne:
The threshold for heat pain are evaluated by heating a small area of the study participants skin. When the study participant feels pain, the temperature (degrees celsius) is registered. 4 threshold measurements per session. Heat pain threshold is defined as the average temperature of the 4 measurements.
Andre navne:
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Hvad måler undersøgelsen?
Primære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
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Change in area of secondary hyperalgesia following brief thermal sensitization
Tidsramme: Study day 1, 2, 3, and 4. A minimum of 4 weeks.
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To determine the intra- and inter-individual variance, and the inter- and intra-observer variance of the secondary hyperalgesia areas following brief thermal sensitization on 4 separate experimental days with two different observers.
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Study day 1, 2, 3, and 4. A minimum of 4 weeks.
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Sekundære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
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Score of Pain Catastrophizing Scale
Tidsramme: 7 days
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How precise does the score of the Pain Catastrophizing Scale predict the size of the area of secondary hyperalgesia?
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7 days
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Score of Hospital Anxiety and Depression Scale
Tidsramme: 7 days
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How precise does the score of the Hospital Anxiety and Depression Scale predict the size of the area of secondary hyperalgesia?
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7 days
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Score of Subscales of Pain Catastrophizing Scale and Hospital Anxiety and Depression Scale
Tidsramme: 7 days
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How precise do the subscales in the two psychological tests (PCS-rumination, PCS-magnification, PCS-helplessness, and HADS-Anxiety, HADS-Depression) predict the size of the area of secondary hyperalgesia?
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7 days
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Heat-pain-detection threshold registered by degrees celsius
Tidsramme: 1 minute per session
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How precise do the Heat-pain-detection threshold evaluated on the 4 experimental days predict the size of the area of secondary hyperalgesia on the respective 4 experimental days? 4 sessions of Heat-pain-detection threshold on 4 separate experimental days with 1 session per experimental day.
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1 minute per session
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Pain following Long Thermal Stimulation, evaluated by maximum on the visual analog scale
Tidsramme: 1 minute per session
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How precise does the Max.
VAS-score following Long Thermal Stimulation evaluated on the 4 experimental days predict the size of the area of secondary hyperalgesia on the respective 4 experimental days? 4 sessions of Long Thermal Stimulation on 4 separate experimental days with 1 session per experimental day.
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1 minute per session
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Pain following Long Thermal Stimulation, evaluated by Area under the curve of the visual analog scale.
Tidsramme: 1 minute per session
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How precise does the VAS-Area Under the Curve following Long Thermal Stimulation evaluated on the 4 experimental days predict the size of the area of secondary hyperalgesia on the respective 4 experimental days? 4 sessions of Long Thermal Stimulation on 4 separate experimental days with 1 session per study day.
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1 minute per session
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Samarbejdspartnere og efterforskere
Sponsor
Samarbejdspartnere
Efterforskere
- Studieleder: Jørgen B Dahl, MD, Doc. Med, Consultant, Department of anaesthesiology, dep. Z, Bispebjerg Hospital, Denmark
Publikationer og nyttige links
Datoer for undersøgelser
Studer store datoer
Studiestart
Primær færdiggørelse (Faktiske)
Studieafslutning (Faktiske)
Datoer for studieregistrering
Først indsendt
Først indsendt, der opfyldte QC-kriterier
Først opslået (Skøn)
Opdateringer af undersøgelsesjournaler
Sidste opdatering sendt (Skøn)
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
Sidst verificeret
Mere information
Begreber relateret til denne undersøgelse
Yderligere relevante MeSH-vilkår
Andre undersøgelses-id-numre
- SM1-MSH-2014
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