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.
調査の概要
状態
研究の種類
入学 (予想される)
段階
- 適用できない
連絡先と場所
研究場所
-
-
-
Copenhagen、デンマーク、2100
- Department of anaesthesia and surgery, 4231, Rigshospitalet
-
-
参加基準
適格基準
就学可能な年齢
健康ボランティアの受け入れ
受講資格のある性別
説明
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
研究計画
研究はどのように設計されていますか?
デザインの詳細
- 主な目的:基礎科学
- 割り当て:なし
- 介入モデル:単一グループの割り当て
- マスキング:なし(オープンラベル)
武器と介入
参加者グループ / アーム |
介入・治療 |
|---|---|
|
実験的: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.
|
研究参加者の皮膚の小さな領域を摂氏45度で3分間加熱し、その後二次性痛覚過敏を評価します。
他の名前:
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.
他の名前:
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.
他の名前:
|
この研究は何を測定していますか?
主要な結果の測定
結果測定 |
メジャーの説明 |
時間枠 |
|---|---|---|
|
Change in area of secondary hyperalgesia following brief thermal sensitization
時間枠:Study day 1, 2, 3, and 4. A minimum of 4 weeks.
|
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.
|
Study day 1, 2, 3, and 4. A minimum of 4 weeks.
|
二次結果の測定
結果測定 |
メジャーの説明 |
時間枠 |
|---|---|---|
|
Score of Pain Catastrophizing Scale
時間枠:7 days
|
How precise does the score of the Pain Catastrophizing Scale predict the size of the area of secondary hyperalgesia?
|
7 days
|
|
Score of Hospital Anxiety and Depression Scale
時間枠:7 days
|
How precise does the score of the Hospital Anxiety and Depression Scale predict the size of the area of secondary hyperalgesia?
|
7 days
|
|
Score of Subscales of Pain Catastrophizing Scale and Hospital Anxiety and Depression Scale
時間枠:7 days
|
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?
|
7 days
|
|
Heat-pain-detection threshold registered by degrees celsius
時間枠:1 minute per session
|
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.
|
1 minute per session
|
|
Pain following Long Thermal Stimulation, evaluated by maximum on the visual analog scale
時間枠:1 minute per session
|
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.
|
1 minute per session
|
|
Pain following Long Thermal Stimulation, evaluated by Area under the curve of the visual analog scale.
時間枠:1 minute per session
|
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.
|
1 minute per session
|
協力者と研究者
スポンサー
捜査官
- スタディディレクター:Jørgen B Dahl, MD, Doc. Med, Consultant、Department of anaesthesiology, dep. Z, Bispebjerg Hospital, Denmark
出版物と役立つリンク
研究記録日
主要日程の研究
研究開始
一次修了 (実際)
研究の完了 (実際)
試験登録日
最初に提出
QC基準を満たした最初の提出物
最初の投稿 (見積もり)
学習記録の更新
投稿された最後の更新 (見積もり)
QC基準を満たした最後の更新が送信されました
最終確認日
詳しくは
この情報は、Web サイト clinicaltrials.gov から変更なしで直接取得したものです。研究の詳細を変更、削除、または更新するリクエストがある場合は、register@clinicaltrials.gov。 までご連絡ください。 clinicaltrials.gov に変更が加えられるとすぐに、ウェブサイトでも自動的に更新されます。
簡単な熱増感の臨床試験
-
Instituto Politécnico de BragançaUniversidade do Porto; Universidade Federal do Paranáまだ募集していません
-
Avacen, Inc.University of California, San Diego; San Diego Veterans Healthcare System完了
-
Assistance Publique - Hôpitaux de Parisまだ募集していません
-
York UniversityUniversity of Lausanneまだ募集していません
-
David Grant U.S. Air Force Medical Center完了
-
Washington State UniversityNational Institute on Drug Abuse (NIDA)完了