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Fish Oil Versus Statins Versus Placebos in Reducing Atrial Fibrillation in Patients Undergoing Thoracic Surgery for Lung Cancer

2012年7月31日 更新者:M.D. Anderson Cancer Center

A Double Blinded, Randomized Study Comparing the Effectiveness of Fish Oil Supplements, Oral Statins, and Placebo in Reducing the Incidence of Atrial Fibrillation Following a Lung Resection in Patients With Lung Cancer

The goal of this clinical research study is to learn if Lipitor (atorvastatin) or fish oil supplements can help to control side effects of the heart that are commonly seen after lung surgery (such as irregular heartbeat). Researchers also want to learn if one of these drugs is more effective than the other at controlling side effects.

調査の概要

詳細な説明

The Study Drugs:

Atorvastatin is designed to lower cholesterol by blocking its production in the liver. This may help to decrease the chances of having a heart attack or a stroke.

Fish oil supplements are designed to lower fat levels in the blood by blocking their production in the liver. This may help to decrease the chances of having a heart attack or a stroke.

Atorvastatin is FDA-approved and commercially available for lowering cholesterol or fat levels in the blood. Fish oil supplements are also commercially available.

Researchers want to compare the anti-inflammatory effects of Atorvastatin and fish oil supplements.

Study Groups:

If you are found to be eligible to take part in this study, you will be assigned to a study "Part" based on when you join this study. Up to 132 participants will be enrolled in Part 1 of the study. Up to 120 participants will be enrolled in Part 2 of the study.

If you are enrolled in Part 1, you will be randomly assigned (as in a roll of dice) to 1 of 3 groups. You will be provided with enough unmarked capsules for fourteen days plus a test dose. You will take the test dose in the clinic in the presence of the research nurse. Beginning 5 days before lung surgery (Day -5), you will take 1 capsule in the morning, as well as 3 capsules 2 time each day (a total of 7 unmarked capsules each day) for 5 days. The capsules should be taken with a cup (8 ounces) of water and may be taken with or without food. You will be reminded by the research nurse to bring the remaining capsules from home prior to your admission for surgery.

  • If you are in Group 1, the capsules you will take will be fish oil supplements and placebo. A placebo is a substance that looks like the study drug but has no active ingredients.
  • If you are in Group 2, the capsules you will take will be atorvastatin and placebo.
  • If you are in Group 3, the capsules you will take will be placebo only.

You will have an equal chance of being assigned to each group. Neither you nor the study staff will know if you are receiving the study drug or the placebo. However, if needed for your safety, the study staff will be able to find out what you are receiving.

After Part 1 is complete, the groups will be compared to learn if any group was more effective than the others. If neither fish oil supplements nor atorvastatin is shown to be more effective than the placebo, the study will be stopped. If fish oil or atorvastatin is found to be more effective than the placebo, the study will continue to Part 2.

If you are enrolled in Part 2, you will be randomly assigned to 1 of 2 study groups. You will be provided with enough unmarked capsules for fourteen days plus a test dose. You will take the test dose in the clinic in the presence of the research nurse, and begin taking capsules 5 days before surgery (Day -5) for 5 days. If atorvastatin was found to be the more effective drug in Part 1, you will take 1 unmarked capsule in the morning each day. If fish oil was found to be the more effective drug in Part 1, you will take 3 capsules 2 times each day (a total of 6 unmarked capsules each day). The capsules should be taken with a cup (8 ounces) of water and may be taken with or without food.

You will be reminded by the research nurse to bring the remaining capsules from home prior to admission for surgery.

  • If you are in Group 1, the capsules you will take will be the drug that was found to be more effective in Part 1 (either fish oil supplements or atorvastatin).
  • If you are in Group 2, the capsules you will take will be placebo only.

You will have an equal chance of being assigned to each group. Neither you nor the study staff will know if you are receiving the study drug or the placebo. However, if needed for your safety, the study staff will be able to find out what you are receiving.

Surgery:

After you have taken the study drug/placebo for 5 days, you will have standard of care lung surgery performed. You will be given a separate consent form to read and sign for the surgery.

On the day of surgery, any unused capsules will be collected and the days, times, and reasons why any doses were missed will be recorded. You will then continue taking the study drug/placebo for up to 9 days after surgery or until you are released from the hospital (whichever comes first). You will follow the same dosing schedule you followed before surgery.

Study Visits:

Each day while you are in the hospital, your vital signs will be measured and you will be checked for any allergic reaction you may have had to the study drug/placebo.

On Days 1 and 3, and on the last day that you take the study drug/placebo, blood (about 1 teaspoon) will be drawn to check your liver function.

About 4-6 weeks after surgery, you will have a follow-up visit. At this visit, the following tests and procedures will be performed:

  • You will have a physical exam, including measurement of your vital signs.
  • You will be asked about any symptoms and/or side effects you may have had.
  • Blood (about 1 teaspoon) will be drawn to check your liver function.

Length of Study:

You will take the study drug/placebo for 5 days before surgery, and for up to 9 days after surgery (up to a total of 14 days). Your participation in the study will be over after the follow-up visit. You will be taken off study early if you have intolerable side effects (such as allergic reaction or abnormal liver function tests).

This is an investigational study.

Up to 252 participants will take part in this study. All will be enrolled at M. D. Anderson.

研究の種類

介入

入学 (実際)

2

段階

  • フェーズ2
  • フェーズ 3

連絡先と場所

このセクションには、調査を実施する担当者の連絡先の詳細と、この調査が実施されている場所に関する情報が記載されています。

研究場所

    • Texas
      • Houston、Texas、アメリカ、77030
        • UT MD Anderson Cancer Center

参加基準

研究者は、適格基準と呼ばれる特定の説明に適合する人を探します。これらの基準のいくつかの例は、人の一般的な健康状態または以前の治療です。

適格基準

就学可能な年齢

18年歳以上 (大人、高齢者)

健康ボランティアの受け入れ

いいえ

受講資格のある性別

全て

説明

Inclusion Criteria:

  1. Patients need to be in a normal sinus rhythm preoperatively.
  2. Participants undergoing planned lobectomy and 60 years of age or older or participants undergoing planned pneumonectomy and 18 years of age or older.
  3. Planned procedure is 5 days after the start of taking study drugs.
  4. Signed written informed consent
  5. Women of childbearing potential must have a negative pregnancy test (A woman of childbearing potential is a women who has not been naturally postmenopausal for at least 12 consecutive months or who has not undergone previous surgical sterilization)
  6. Adequate liver function evidenced by; aspartate aminotransferase (AST or SGOT) </= 2.5 * Upper Limits of Normal (ULN), and alanine aminotransferase (ALT or SGPT) </= 2.5 * ULN

Exclusion Criteria:

  1. Any history of supraventricular arrhythmia for which the patient is taking medications.
  2. Current use of antiarrhythmic medications other than beta-receptor antagonists, calcium-channel antagonists, or digitalis.
  3. Use of any supplemental n-3 fatty acids during the previous three months.
  4. Use of any statin therapy during the previous three months.
  5. Patients known to have a history of recent drug or alcohol abuse.
  6. Known allergy to seafood
  7. Current use of Gemfibrozil and Fenofibrate.

研究計画

このセクションでは、研究がどのように設計され、研究が何を測定しているかなど、研究計画の詳細を提供します。

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:トリプル

武器と介入

参加者グループ / アーム
介入・治療
実験的:Atorvastatin
1 Atorvastatin capsule daily plus 3 Placebo capsules twice a day orally, 5 days pre-surgery.
1 capsule by mouth every morning 5 days before surgery, and 9 days after surgery or until discharge.
他の名前:
  • リピトール

Placebo group: 4 capsules by mouth every morning and 3 every evening for 5 days before surgery and 9 days after surgery or until discharge.

Atorvastatin group: 3 capsules by mouth every morning and evening, 5 days before surgery and 9 days after surgery or until discharge.

Fish Oil Supplement group: 1 capsule by mouth every morning 5 days before surgery and 9 days after surgery or until discharge.

実験的:Fish Oil Supplement
3 Fish Oil capsules twice a day plus 1 Placebo capsule daily orally 5 days pre-surgery.

Placebo group: 4 capsules by mouth every morning and 3 every evening for 5 days before surgery and 9 days after surgery or until discharge.

Atorvastatin group: 3 capsules by mouth every morning and evening, 5 days before surgery and 9 days after surgery or until discharge.

Fish Oil Supplement group: 1 capsule by mouth every morning 5 days before surgery and 9 days after surgery or until discharge.

3 capsules by mouth in the morning and evening 5 days before surgery, and 9 days after surgery or until discharge.
他の名前:
  • n-3 PUFA
  • Fish oil supplementation
プラセボコンパレーター:Placebo
4 capsules orally every morning and 3 every evening for 5 days pre-surgery.

Placebo group: 4 capsules by mouth every morning and 3 every evening for 5 days before surgery and 9 days after surgery or until discharge.

Atorvastatin group: 3 capsules by mouth every morning and evening, 5 days before surgery and 9 days after surgery or until discharge.

Fish Oil Supplement group: 1 capsule by mouth every morning 5 days before surgery and 9 days after surgery or until discharge.

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
Incidences of Atrial Fibrillation During First 4 Days After Lung Resection
時間枠:Baseline to 4 days post surgery
New onset of sustained (15 min or >) or clinically significant (requiring intervention) atrial fibrillation (AF) during first 4 days post surgery as defined by on American College of Cardiology and American Heart Association Physician Consortium.
Baseline to 4 days post surgery

協力者と研究者

ここでは、この調査に関係する人々や組織を見つけることができます。

スポンサー

捜査官

  • 主任研究者:Ara Vaporciyan, MD, BS、UT MD Anderson Cancer Center

出版物と役立つリンク

研究に関する情報を入力する責任者は、自発的にこれらの出版物を提供します。これらは、研究に関連するあらゆるものに関するものである可能性があります。

研究記録日

これらの日付は、ClinicalTrials.gov への研究記録と要約結果の提出の進捗状況を追跡します。研究記録と報告された結果は、国立医学図書館 (NLM) によって審査され、公開 Web サイトに掲載される前に、特定の品質管理基準を満たしていることが確認されます。

主要日程の研究

研究開始

2011年1月1日

一次修了 (実際)

2011年9月1日

研究の完了 (実際)

2011年9月1日

試験登録日

最初に提出

2010年12月10日

QC基準を満たした最初の提出物

2010年12月13日

最初の投稿 (見積もり)

2010年12月14日

学習記録の更新

投稿された最後の更新 (見積もり)

2012年8月7日

QC基準を満たした最後の更新が送信されました

2012年7月31日

最終確認日

2012年7月1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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