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ICUの鎮痛性疼痛制御のための低用量のケトロラック:パイロットの実現可能性調査 (KETOROLAC-ICU)

2026年9月24日 更新者:University of Alberta

ICUの鎮痛性疼痛制御のための低用量のケトロラック:疼痛スコアに対するケトロラックの効果と重症患者のアヘン剤の使用に対する影響を確認するための無作為化、盲検化、平行グループ、プラセボ対照試験

Opiates are commonly used to control pain in critically ill patients in the ICU. However, increased rates of opiate use in hospital may lead to increased prescription-based opiate dependence after leaving the ICU. This may contribute to the ongoing opiate epidemic across the world. Other medications that can reduce pain, like non-steroidal anti-inflammatory drugs (NSAIDs), are being studied in critically ill patients. These drugs block the enzyme, cyclooxygenases (COX), which causes inflammation in the body. Blocking these enzymes can decrease pain, fever, and inflammation. Traditionally, NSAIDs are not commonly used in critically ill patients due to the perceived risk of gastrointestinal (GI) bleeding and acute kidney injury (AKI). However, many critically ill patients are already receiving medications and treatments to prevent GI bleeding and AKI and are closely monitored so these medications may be useful in reducing pain for these patients.

The purpose of this study is to see whether NSAIDs can be used safely in critically ill patients to reduce the dose of opiates required for pain control. This is a pilot study or a feasibility study, which is not expected to answer the question definitively. Its main purpose is to determine if NSAIDs could reduce the use of opiates in critically ill patients while in the ICU. The data collected in this study may be used in a larger study in the future.

調査の概要

状態

募集

条件

詳細な説明

Purpose: The purpose of this study is to determine the feasibility of conducting a future, adequately powered large-scale randomized trial, while evaluating the safety and efficacy of an intravenous NSAID (e.g., ketorolac) plus usual care as compared to placebo plus usual care in critically ill patients.

Hypothesis: The investigators hypothesize that this single-centre pilot study will demonstrate that NSAIDs administration is feasible and safe in ICU patients and may potentially reduce opiate use in ICU patients with pain.

Justification: Pain control in ICU is difficult to achieve given that opiates are the mainstay of analgesia in critically ill patients, but this is not without unintended side effects, especially unintended consequences of possible future drug dependence or addictions. Given that opiates and other adjunctive pain medications (e.g., acetaminophen) are being utilized at high proportional rates, and that NSAIDs are used at relatively low rates (due to the theoretical risk of increased AKI and GI bleeds), there is potential for practice change for increased NSAID use at lower doses to reduce pain and opiate use, while not increasing risks.

Objectives: The primary objective of this pilot trial is to assess the feasibility of a larger clinical trial utilizing NSAIDs in the ICU for patients with pain. The primary outcomes of the pilot feasibility trial are: recruitment and consent rates, proportion of eligible participants who are randomized vs. not randomized, retention and protocol adherence rates.

The secondary objectives are to assess safety of the proposed trial (e.g. gastrointestinal bleeding, acute kidney injury, death) and efficacy outcomes (e.g. participant pain scores, opiate and other analgesia usage).

Research Methods/Procedures: The investigators have designed KETOROLAC-ICU as a pilot randomized controlled trial (prospective, single centre, parallel-group, concealed, blinded) examining the use of low-dose ketorolac for critically ill patients.

研究の種類

介入

入学 (推定)

30

段階

  • 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。

研究連絡先

研究場所

    • Alberta
      • Edmonton、Alberta、カナダ、T6G 2B7
        • 募集
        • University of Alberta Hospital
        • コンタクト:

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:

  • Age > 18 years
  • Admission to intensive care unit (ICU)
  • Participants with pain (Critical Care Pain Observation Tool [CPOT] > 1 and/or self-report pains score >1 on visual analogue scale [VAS] or numerical rating scale [NRS])

Exclusion Criteria:

  • Serum Cr > 100 mmol/L for females, and >130 mmol/L for males
  • Ongoing ACEi (angiotensin converting enzyme inhibitor)/ARB (angiotensin receptor blocker) use in ICU
  • Known hyperkalemia > 5.5
  • Pre-existing chronic kidney disease (CKD Stage > 3), defined by a serum Cr > 100 mmol/L for females, and >130 mmol/L for males (at the time of screening, based on pre-hospital stable outpatient baseline values)
  • New acute kidney injury KDIGO Stage > 2 (increased more than > 2-to-3 times in serum creatinine above baseline AND/OR <0.5mL/kg/hour urine output for >12 hours)
  • Pre-existing gastrointestinal bleeding (within 12 weeks of hospital admission, requiring hospitalization or medical evaluation), new peptic ulcer disease, esophagitis, esophageal varices within the last 3 months
  • Active gastric / duodenal / peptic ulcer, active GI bleeding
  • Prior contraindications/allergies to NSAIDS or stress ulcer prophylaxis, specifically if a participant has had an anaphylactic reaction (asthma or urticaria) or non-anaphylactic asthma reaction to NSAIDs or any stress ulcer prophylaxis, e.g. proton pump inhibitor, histamine-2-blockers, etc. (e.g. proton pump inhibitor, histamine-2-blockers, etc.)
  • Complete or partial syndrome of ASA-intolerance (e.g. rhinosinusitis, urticaria/angioedema, nasal polyps, asthma)
  • Participants who are not receiving stress ulcer prophylaxis (e.g. proton pump inhibitor, histamine-2-blockers, etc.) while in ICU
  • Any active bleeding (requiring any blood products or adjunctive coagulation agents, any output of blood >100 mL/hr, e.g. chest tube drainage, abdominal cavity drain, etc.)
  • Currently receiving NSAID(s) for another indication
  • Inflammatory bowel disease (e.g. participants with prior diagnosis of Crohn's disease or ulcerative colitis)
  • Receiving probenecid, oxpentifylline or pentoxifylline
  • Active ischemic heart disease (acute myocardial infarction, acute coronary syndrome during current hospital admission)
  • Moderate-severe uncontrolled heart failure (New York Heart Association: Class II-IV)
  • Moderate to severe liver impairment or active liver disease (Operational definition: participants with prior history of Child-Pugh class B (moderate) or C (severe) liver cirrhosis, OR Model for End-Stage Liver Disease-Sodium (MELD-Na) score >25, OR active acute liver failure: severe acute liver injury with encephalopathy and impaired synthetic function International Normalized Ratio (INR) >1.5 with or without pre-existing liver disease)
  • Active cerebrovascular bleeding or stroke (cerebrovascular accident, transient ischemic attacks and/or amaurosis fugax, e.g. participants with active stroke symptoms within current hospital admission)
  • Cerebrovascular bleeding or other bleeding disorders
  • Coagulation disorders, post-operative patients with high haemorrhagic risk or incomplete haemostasis in patients with suspected or confirmed cerebrovascular bleeding
  • Neuraxial (epidural or intrathecal) administration of ketorolac tromethamine injection due to its alcohol content
  • Rhabdomyolysis (creatinine kinase >5000 U/L)
  • Recent transplant (during same hospital admission, e.g., heart, lung, kidney, liver, etc.)
  • Known allergy to ketorolac or other NSAIDs
  • Participants expected to stay in ICU < 48 hours
  • In the opinion of the attending physician, expected death or withdrawal of life-sustaining treatments within 48 hours
  • Participant is known to be pregnant and/or breastfeeding
  • Most responsible physician, participant, or substitute decision maker declines study participation (and reason)

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:4倍

武器と介入

参加者グループ / アーム
介入・治療
実験的:Ketorolac

Ketorolac administration + standard of care.

Participants will not be allowed to have co-administered alternative NSAIDs during the duration of their exposure on the study drug. After each administered dose, overall analgesic requirements should be assessed by the treating team (as per local institutional guidelines and practices), with attempts to wean analgesic infusions or use reduced doses of analgesic medications (especially if objective pain score measures are zero, e.g. CPOT or NRS/VAS).

Ketorolac 15 mg IV q6h for a maximum of 3 days total or discharge from ICU (whichever comes first). The ketorolac will be diluted in a 0.9% normal saline 10 mL syringe.

プラセボコンパレーター:Placebo

Placebo administration + standard of care.

Participants will not be allowed to have co-administered alternative NSAIDs during the duration of their exposure on the study drug. After each administered dose, overall analgesic requirements should be assessed by the treating team (as per local institutional guidelines and practices), with attempts to wean analgesic infusions or use reduced doses of analgesic medications (especially if objective pain score measures are zero, e.g. CPOT or NRS/VAS).

Matching placebo IV q6h for a maximum of 3 days total or discharge from ICU (whichever comes first). The matching placebo will be diluted in a 0.9% normal saline 10 mL syringe.

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
Feasibility - Recruitment and Retention
時間枠:Days 1-7, 90

Recruitment rate at pilot site (participants/month), consent rates of eligible participants, proportion of eligible participants not randomized, and participant retention rates.

Days 1-7, 90
Feasibility - Protocol Adherence
時間枠:Days 1-7, 90

Rates of protocol adherence and reasons for protocol non-adherence.

Days 1-7, 90

二次結果の測定

結果測定
メジャーの説明
時間枠
Opioid Use
時間枠:Baseline; Days 1-7, 14, 21, 28, 90

The administration of opioid medications (converted into oral morphine equivalents)

Baseline; Days 1-7, 14, 21, 28, 90
Pain Scores - Critical Care Pain Observation Tool (CPOT)
時間枠:Baseline; Days 1-7, 14, 21, 28

The critical care pain observation tool (CPOT) is used by healthcare workers to measure four indicators of pain: facial expression, body movements, muscle tension, and compliance with the ventilator (or vocalization for extubated participants). Each of the four indicators are ranked from 0 to 2, with higher numbers describing more pain behaviors.

Baseline; Days 1-7, 14, 21, 28
Pain Scores - Visual Analog Scale (VAS)
時間枠:Baseline; Days 1-7, 14, 21, 28

The visual analog scale (VAS) is a self-reported measure of a participant's level of pain. This tool consists of a single, 10cm long line, with one end titled "No pain" and the other end titled "Pain as bad as it could possibly be." The participant then draws a mark on the line that corresponds to their level of pain. This mark is later quantified in distance from the "no pain" side of the line.

Baseline; Days 1-7, 14, 21, 28
Pain Scores - Numerical Pain Rating Scale (NRS)
時間枠:Baseline; Days 1-7, 14, 21, 28

The numerical pain rating scale (NRS) is a self-reported measure of a participant's level of pain. Participants are asked to rank their pain on a scale of 0 to 10, with 0 representing no pain, and 10 representing the worst possible pain.

Baseline; Days 1-7, 14, 21, 28
Safety - Acute Kidney Injury
時間枠:Days 1-7, 28

KDIGO Stage ≥ 2 (increased serum creatinine > 2-3 times above baseline AND/OR <0.5mL/kg/hour urine output for >12 hours) AND/OR need for renal replacement therapy

Days 1-7, 28
Safety - Gastrointestinal (GI) Bleeding
時間枠:Days 1-7, 28

Clinically significant GI bleeding (visual and physiological evidence of overt GI bleeding)

Days 1-7, 28
Safety - Other
時間枠:Days 1-28

Occurrence of any adverse and/or serious adverse events

Days 1-28
All-Cause Mortality
時間枠:Days 28, 90

All-cause mortality in ICU, in hospital, or post-discharge.

Days 28, 90
Health-Related Quality of Life (EQ-5D-5L)
時間枠:Day 90

EuroQol's Health-Related Quality of Life questionnaire (EQ-5D-5L) is a self-reported measure of a participant's current health status and quality of life. This questionnaire consists of 5 questions, each representing a different dimension of health-related quality of life: mobility, self-care, usual activities, pain/discomfort, and anxiety/depression. Each question has 5 possible responses, ranging from "no problem" (score of 1) to "unable/extreme problems" (score of 5).

Day 90
Clinical Frailty Scale (CFS)
時間枠:Baseline; Day 90

The Clinical Frailty Scale (CFS) is a tool to describe a participant's frailty and level of functioning. This scale ranges from "Very Fit" (score of 1) to "Terminally Ill" (score of 9).

Baseline; Day 90
Cognitive Measures
時間枠:Days 1-28

Delirium incidence (ICDSC scores ≥ 4), duration of decreased level of consciousness (LOC) due to moderate-severe sedation (RASS scores ≤ -3), duration of decreased LOC requiring intubation or ongoing mechanical ventilation (GCS < 8)

Days 1-28
Organ Support
時間枠:Days 1-7, 14, 21, 28, 90

Use and duration of invasive mechanical ventilation (including rates of reintubation), non-invasive ventilation, renal replacement therapy, and vasopressors

Days 1-7, 14, 21, 28, 90
Length of Admission
時間枠:Day 90

ICU length of stay, hospital length of stay, readmission episodes

Day 90
Procedures
時間枠:Days 1-7, 28

Need for endoscopy (EGD or colonoscopy), angiography, and/or exploratory laparotomy

Days 1-7, 28
Other Analgesia
時間枠:Days 1-7, 14, 21, 28, 90

Administration of non-opioid analgesic medications

Days 1-7, 14, 21, 28, 90

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:Vincent I Lau, MD MSc、University of Alberta

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 (実際)

2025年6月23日

一次修了 (推定)

2026年12月1日

研究の完了 (推定)

2027年12月1日

試験登録日

最初に提出

2025年1月30日

QC基準を満たした最初の提出物

2025年2月5日

最初の投稿 (実際)

2025年2月11日

学習記録の更新

投稿された最後の更新 (実際)

2026年9月28日

QC基準を満たした最後の更新が送信されました

2026年9月24日

最終確認日

2026年9月1日

詳しくは

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医薬品およびデバイス情報、研究文書

米国FDA規制医薬品の研究

いいえ

米国FDA規制機器製品の研究

いいえ

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