- ICH GCP
- 미국 임상 시험 레지스트리
- 임상시험 NCT01541436
Remote Ischemic Preconditioning Mechanism Study
Remote Ischemic Preconditioning Effects on Central and Peripheral Sensitization in Healthy Volunteers-A Pilot Study
This research is being done because pain is a significant problem for patients with a variety of medical problems and following surgery or traumatic injury. Currently available pain medications may not relieve all types of pain or may relieve pain only at doses that produce side effects and potential complications.
Although Remote Ischemic Preconditioning (RIPC) appears promising, there remain several unanswered questions about how it works. This research trial will help determine how RIPC may activate the bodies natural pain control system. The goals of this study are to see if RIPC has any effect 1) on a small area of skin that will be expose to a small amount of UV- B radiation (a mild sunburn), 2) on acute thermal heat temperatures that will be applied to skin, and 3) on the sunburn-like sensation to light touch after putting capsaicin cream (the active ingredient in hot chili peppers) on skin.
Remote ischemic preconditioning is done by inflating a balloon (very similar to a blood pressure cuff) on the leg until it blocks blood flow for a few minutes. The cuff is then deflated and blood flow resumes. The process is repeated up to three times. This procedure causes the body to increase its natural pain relief system that may help to decrease the amount of postsurgical pain.
연구 개요
상세 설명
연구 유형
등록 (실제)
단계
- 초기 1단계
연락처 및 위치
연구 장소
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North Carolina
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Winston-Salem, North Carolina, 미국, 27157
- WakeForestUBMC
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참여기준
자격 기준
공부할 수 있는 나이
건강한 자원 봉사자를 받아들입니다
연구 대상 성별
설명
Inclusion Criteria:
- healthy volunteers of both sexes ASA 1 or II classification
- between the ages of 18-55
- weighing less than 250 pounds
- without chronic pain
- not taking analgesics
- off caffeine for 2 days.
Exclusion Criteria:
- pregnancy
- allergy to capsaicin
- lower extremity vascular insufficiency
- active treatment for DVT
- severe thigh pain
- taking psychotropic medications, including anti-depressants.
공부 계획
연구는 어떻게 설계됩니까?
디자인 세부사항
- 주 목적: 기초 과학
- 할당: 무작위
- 중재 모델: 크로스오버 할당
- 마스킹: 없음(오픈 라벨)
무기와 개입
참가자 그룹 / 팔 |
개입 / 치료 |
|---|---|
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활성 비교기: Capsaicin, UV-B, RIPC
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The participants will have one disposable tourniquet applied to the left mid thigh by research personnel.
The participants will then be randomized to the treatment group or sham group.
The treatment group will receive 3 cycles of RIPC to the left lower leg by occluding blood flow at the thigh with a pneumatic cuff.
Each cycle will consist of 5 minutes of ischemia by inflating the cuff to 300 mmHg followed by 5 minutes of reperfusion.
The sham group will have the cuff inflated to no more than 15mmHg for three cycles as described above.
Areas of hypersensitivity and allodynia will be obtained every 40 min for 280 min following the end of capsaicin application.
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가짜 비교기: Capsaicin, UV-B
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The participants will have one disposable tourniquet applied to the left mid thigh by research personnel.
The participants will then be randomized to the treatment group or sham group.
The treatment group will receive 3 cycles of RIPC to the left lower leg by occluding blood flow at the thigh with a pneumatic cuff.
Each cycle will consist of 5 minutes of ischemia by inflating the cuff to 300 mmHg followed by 5 minutes of reperfusion.
The sham group will have the cuff inflated to no more than 15mmHg for three cycles as described above.
Areas of hypersensitivity and allodynia will be obtained every 40 min for 280 min following the end of capsaicin application.
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연구는 무엇을 측정합니까?
주요 결과 측정
결과 측정 |
측정값 설명 |
기간 |
|---|---|---|
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Areas of hyperalgesia and allodynia to mechanical stimuli.
기간: 24 hours
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Hyperalgesia will be measured with vonFrey fibers and allodynia will be measured with a cotton wisp.
The area will be measured in cm2.
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24 hours
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2차 결과 측정
결과 측정 |
측정값 설명 |
기간 |
|---|---|---|
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Pain intensity and unpleasantness to mechanical stimuli
기간: 24 hours
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Using a Visual Analog Sliding Scale the intensity and unpleasantness will be measured in centimeters.
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24 hours
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Presence of parathesias where RIPC was used
기간: 24 hours
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After a brief tourniquet application I fully expect participants to have some degree of parasthesias.
Using a standard rating scale I will record and report this.
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24 hours
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공동 작업자 및 조사자
수사관
- 수석 연구원: Scott A Miller, MD, Wake Forest University Health Sciences
연구 기록 날짜
연구 주요 날짜
연구 시작 (실제)
기본 완료 (실제)
연구 완료 (실제)
연구 등록 날짜
최초 제출
QC 기준을 충족하는 최초 제출
처음 게시됨 (추정)
연구 기록 업데이트
마지막 업데이트 게시됨 (실제)
QC 기준을 충족하는 마지막 업데이트 제출
마지막으로 확인됨
추가 정보
이 연구와 관련된 용어
추가 관련 MeSH 약관
기타 연구 ID 번호
- 00019284
약물 및 장치 정보, 연구 문서
미국 FDA 규제 의약품 연구
미국 FDA 규제 기기 제품 연구
미국에서 제조되어 미국에서 수출되는 제품
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