Ketamine In Thoracic Surgery (KITS) Trial (KITS)
調査の概要
詳細な説明
This study is designed to be a phase 2 (efficacy) randomized controlled clinical trial of ketamine versus placebo in 40 patients undergoing lobectomy by VATS or open approach, at Duke University. We selected a single dose regimen of 0.5mg/kg IV ketamine given at induction of anesthesia, as this is the dose that previously has been shown to induce maximal suppression of the IL-6 response in cardiac surgery.
We plan to randomize 40 patients to receive either ketamine or placebo, in a block of 4 randomization design stratified by whether surgery is performed by VATS or open lobectomy. 40 patients (n=20 per group) will provide 90% power to detect a change in IL 6 of 20 pg/ml from a mean of 100 pg/ml at 4 hours, with two tailed alpha = 0.05. Allowing for 10-20% attrition we will enroll 50 patients to achieve this sample size. All patients presenting for lobectomy either VATS or open will be included. Patients will be screened by review of the preoperative surgical schedule posted each day and approached for consent to participate if they do not have any exclusion criteria. Patients who are randomized but do not undergo lobectomy for any reason will not be included in the analysis of the primary endpoint. Patients who are listed for VATS resection but convert to open will be included in the analysis on a per protocol basis. The randomization is stratified according to planned approach (VATS vs open), however we expect the majority of these cases to be VATS lobectomies.
Treatment will be by intravenous administration of a single dose of study drug over 5 minutes immediately after induction of anesthesia and before surgical incision.
Patients will be randomized (by sealed envelope) in blocks of 4 to receive ketamine or placebo. The randomization will be stratified according to whether the planned surgery is via VATS or open (thoracotomy) approach. The study drug will be prepared by the investigational pharmacy and provided to the attending anesthesiologist of record for the case. It will contain 0.5 mg/kg ketamine for injection by IV bolus over 5 minutes, or as an equivalent volume of 0.9% saline. It will be the responsibility of the principal investigator to ensure that study drug is administered in a timely fashion, usually by delegation to the attending anesthesiologist of record for the case. The anesthetic procedure will be standardized in that each patient will receive a total intravenous anesthetic using propofol and an intravenous opioid infusion. This anesthetic will be supplemented by an epidural and intravenous opioid boluses as needed to control pain.
Visits by the research team will be performed as follows:
- Visit 1 will occur at enrollment, when baseline information (see CRF visit 1) will be collected and study consent forms signed.
- Visit 2 will occur at induction of anesthesia when study drug will be administered and a baseline blood sample of 10ml collected from the patient's arterial line. The blood sample will be immediately centrifuged and the serum frozen and stored for subsequent analysis.
- Visit 3 will occur at 4 hours after completion of surgery when 10 ml blood will be collected and CRF visit 3 form will be completed (VAS score and emergence delirium).
- Visit 4 will occur at 24 hours after completion of surgery when 10 ml blood will be collected and CRF visit 4 form will be completed (VAS score).
- The final visit will occur just prior to hospital discharge when CRF visit 5 form will be completed (secondary endpoints). Additionally, if the principal investigator is informed by either study staff or the clinical team of an adverse event or other complication, then the patient will be visited within 24 hours for confirmation of the event and ascertainment of whether the event is related to study drug or not. An SAE form will be completed and sent to the IRB in line with institutional policy.
研究の種類
入学 (実際)
段階
- フェーズ2
連絡先と場所
研究場所
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-
North Carolina
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Durham、North Carolina、アメリカ、27710
- Duke University Medical Center
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参加基準
適格基準
就学可能な年齢
- 子
- 大人
- 高齢者
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:
- All patients presenting for lobectomy either VATS or open.
Exclusion Criteria:
- Patients with myocardial infarction in the previous six months,
- Patients with a history of psychotic disorder,
- Patients with a history of chronic pain syndrome,
- Patients with documented previous allergy to ketamine.
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:処理
- 割り当て:ランダム化
- 介入モデル:並列代入
- マスキング:4倍
武器と介入
参加者グループ / アーム |
介入・治療 |
---|---|
実験的:Ketamine
Single bolus 0.5mg/kg ketamine IV after induction of anesthesia
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Interventional
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プラセボコンパレーター:Placebo
0.9 % saline bolus of equivalent volume
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placebo
|
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 |
時間枠 |
---|---|
Interleukin Levels at 24 Hours
時間枠:24 Hours
|
24 Hours
|
二次結果の測定
結果測定 |
メジャーの説明 |
時間枠 |
---|---|---|
C-reactive Protein (CRP) Serum Levels
時間枠:24 hours
|
The CRP levels were measured 24 hours postoperatively.
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24 hours
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Verbal Pain Scores
時間枠:baseline, 4 hours, 24 hours and at discharge
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Pain scores rated by the subject on a scale of 0 low - 10 high
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baseline, 4 hours, 24 hours and at discharge
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協力者と研究者
スポンサー
捜査官
- 主任研究者:Andy Shaw, M. D.、Duke University
出版物と役立つリンク
一般刊行物
- Craig SR, Leaver HA, Yap PL, Pugh GC, Walker WS. Acute phase responses following minimal access and conventional thoracic surgery. Eur J Cardiothorac Surg. 2001 Sep;20(3):455-63. doi: 10.1016/s1010-7940(01)00841-7.
- Roytblat L, Talmor D, Rachinsky M, Greemberg L, Pekar A, Appelbaum A, Gurman GM, Shapira Y, Duvdenani A. Ketamine attenuates the interleukin-6 response after cardiopulmonary bypass. Anesth Analg. 1998 Aug;87(2):266-71. doi: 10.1097/00000539-199808000-00006.
- Bartoc C, Frumento RJ, Jalbout M, Bennett-Guerrero E, Du E, Nishanian E. A randomized, double-blind, placebo-controlled study assessing the anti-inflammatory effects of ketamine in cardiac surgical patients. J Cardiothorac Vasc Anesth. 2006 Apr;20(2):217-22. doi: 10.1053/j.jvca.2005.12.005. Epub 2006 Mar 9.
- Tashima T, Yamashita J, Nakano S, Joutsuka T, Hayashi N, Saishoji T, Ogawa M. Comparison of video-assisted minithoracotomy and standard open thoracotomy for the treatment of non-small cell lung cancer. Minim Invasive Ther Allied Technol. 2005;14(3):203-8. doi: 10.1080/13645700510034001.
- Yim AP, Wan S, Lee TW, Arifi AA. VATS lobectomy reduces cytokine responses compared with conventional surgery. Ann Thorac Surg. 2000 Jul;70(1):243-7. doi: 10.1016/s0003-4975(00)01258-3.
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。
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