- ICH GCP
- Amerikanska kliniska prövningsregistret
- Klinisk prövning 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.
Studieöversikt
Status
Betingelser
Intervention / Behandling
Studietyp
Inskrivning (Förväntat)
Fas
- Inte tillämpbar
Kontakter och platser
Studieorter
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Copenhagen, Danmark, 2100
- Department of anaesthesia and surgery, 4231, Rigshospitalet
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Deltagandekriterier
Urvalskriterier
Åldrar som är berättigade till studier
Tar emot friska volontärer
Kön som är behöriga för studier
Beskrivning
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
Hur är studien utformad?
Designdetaljer
- Primärt syfte: Grundläggande vetenskap
- Tilldelning: N/A
- Interventionsmodell: Enskild gruppuppgift
- Maskning: Ingen (Open Label)
Vapen och interventioner
Deltagargrupp / Arm |
Intervention / Behandling |
|---|---|
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Experimentell: 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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Ett litet område av huden på studiedeltagarna värms till 45 grader Celsius i 3 minuter, följt av utvärdering av sekundär hyperalgesi.
Andra namn:
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.
Andra namn:
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.
Andra namn:
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Vad mäter studien?
Primära resultatmått
Resultatmått |
Åtgärdsbeskrivning |
Tidsram |
|---|---|---|
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Change in area of secondary hyperalgesia following brief thermal sensitization
Tidsram: 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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Sekundära resultatmått
Resultatmått |
Åtgärdsbeskrivning |
Tidsram |
|---|---|---|
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Score of Pain Catastrophizing Scale
Tidsram: 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
Tidsram: 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
Tidsram: 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
Tidsram: 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
Tidsram: 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.
Tidsram: 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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Samarbetspartners och utredare
Sponsor
Samarbetspartners
Utredare
- Studierektor: Jørgen B Dahl, MD, Doc. Med, Consultant, Department of anaesthesiology, dep. Z, Bispebjerg Hospital, Denmark
Publikationer och användbara länkar
Studieavstämningsdatum
Studera stora datum
Studiestart
Primärt slutförande (Faktisk)
Avslutad studie (Faktisk)
Studieregistreringsdatum
Först inskickad
Först inskickad som uppfyllde QC-kriterierna
Första postat (Uppskatta)
Uppdateringar av studier
Senaste uppdatering publicerad (Uppskatta)
Senaste inskickade uppdateringen som uppfyllde QC-kriterierna
Senast verifierad
Mer information
Termer relaterade till denna studie
Ytterligare relevanta MeSH-villkor
Andra studie-ID-nummer
- SM1-MSH-2014
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