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APLAUD試験(抗生物質対プラセボによる急性単純性憩室炎の治療)

2026年9月17日 更新者:Alexander Hawkins、Vanderbilt University Medical Center

急性単純性憩室炎に対するプラセボと抗生物質の比較

The goal of this clinical trial is to determine whether antibiotics improve recovery from acute uncomplicated diverticulitis (AUD) in racially and ethnically diverse United States clinical practice. The main questions it seeks to answer are:

  • What is the feasibility for completing a subsequent definitive efficacy trial of antibiotics vs. placebo to treat AUD?
  • What are the needs for successful recruitment of racial and ethnic subgroups?
  • What are the effects of a placebo compared to antibiotics for AUD on a range of key patient-centric efficacy and safety endpoints?
  • How do such effects differ by race and ethnicity? Researchers will compare a placebo to antibiotics to see if AUD can be treated without using antibiotics.

Participants will:

  • Take two antibiotics or a matching placebo every day for 10 days
  • Receive analgesia, gastric protection, diet modifications, and a follow-up
  • Submit daily photos of pills to the study team to verify adherence

調査の概要

研究の種類

介入

入学 (推定)

100

段階

  • フェーズ2

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

    • Tennessee
      • Nashville、Tennessee、アメリカ、37235
        • 募集
        • Vanderbilt University Medical Center Emergency Department
        • 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~90年 (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:

  • Patients presenting to the emergency department with left-sided uncomplicated diverticulitis
  • Radiologic score (moderate diverticulitis per Ambrosetti classification)
  • Age 18-90
  • Access to a smartphone with internet access.

Exclusion Criteria:

  • Complicated diverticulitis (abscess, free air, peritonitis)- severe diverticulitis by Ambrosetti classification
  • Diverticulitis other than left colon
  • Contraindication to use of study medication (ie advanced renal failure or allergy to all antibiotics used in the study)
  • Concurrent cancer diagnosis
  • Concurrent IBD Diagnosis
  • Any other disease process with life expectancy < 6 months
  • Concurrent chronic pain diagnosis.
  • Women in pregnancy or breastfeeding
  • Antibiotic treatment for any reason in the last 3 weeks
  • Diagnosis of prior episode of acute diverticulitis in the past 3 months
  • Significant comorbidities: diabetes mellitus with organic involvement (retinopathy, angiopathy, nephropathy), emergency assistance for a cardiogenic event in the last 3 months (acute myocardial infarction, angina, heart failure), decompensation of chronic liver disease in the last 3 months (Child ≥ B) and end-stage renal disease.
  • Immunodepression: the absence, and immunodepression is the presence, of any of the following: active neoplastic disease, hematologic malignancy, human immunodeficiency virus long-term corticosteroid treatment, immunosuppressant therapy (20mg pred (or equivalent) for >2 weeks), transplant, splenectomy and genetic immunodeficiency
  • Previous colectomy
  • Patients with dementia, memory disorders or other cognitive impairment that would impact their ability to provide informed consent or otherwise participate in the trial

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
アクティブコンパレータ:Antibiotic

The primary antibiotic choice will be amoxicillin-clavulanate (1 tablet [875 mg amoxicillin; 125 mg clavulanic acid] every 8 hours). If the subject has an allergy or contraindication to the primary antibiotic, we will administer cefuroxime [500 mg] every 12 hours plus metronidazole [500 mg] every 12 hours.

amoxicillin-clavulanate:1 tablet [875 mg amoxicillin; 125 mg clavulanic acid] every 8 hours

metronidazole: 500 mg every 12 hours

cefuroxime: 500 mg every 12 hours

実験的:Placebo

A placebo matching the antibiotic arm's treatment regimen will be administered for 10 days

A placebo matching the antibiotic arm's treatment regimen will be administered for 10 days

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
Recruitment Rate
時間枠:From enrollment through study completion, an average of 2 years.

Patients recruited per week

From enrollment through study completion, an average of 2 years.
Adherence
時間枠:From enrollment through study completion, an average of 2 years

Percent of patients completing the course of antibiotics/placebo

From enrollment through study completion, an average of 2 years
Data completeness
時間枠:From enrollment through study completion, an average of 2 years

Percentage of participants for whom a complete data set was collected

From enrollment through study completion, an average of 2 years
Retention
時間枠:From enrollment through study completion, an average of 2 years

Percentage of patients completing all study activities

From enrollment through study completion, an average of 2 years
Acceptability
時間枠:Collected at 14 days and 6 months

Measured by the Acceptability of Intervention Measure (AIM). Four-question survey with scores ranging from 4 (least acceptable) to 20 (most acceptable).

Collected at 14 days and 6 months
Cross over
時間枠:From enrollment through study completion, an average of 2 years

Defined as the number of placebo subjects that ended up being treated with antibiotics

From enrollment through study completion, an average of 2 years

二次結果の測定

結果測定
メジャーの説明
時間枠
Barratt Simplified Measure of Social Status (BSMSS)
時間枠:Collected at the time of enrollment

BSMSS provides an education, occupation, and overall proxy score for socioeconomic status. Scored on a scale of 8-66, with higher scores indicating higher socioeconomic status.

Collected at the time of enrollment
Brief Health Literacy Scale (BHLS)
時間枠:Collected at enrollment

3-item questionnaire, scored on a scale of 1-5 with 5 being the highest degree of health literacy

Collected at enrollment
Patient-Reported Outcomes Measurement Information System-10 (PROMIS-10)
時間枠:Collected at the time of enrollment, 30 days, and 6 months

The PROMIS-10 assesses an individual's mental health (four items) and physical health (four items) domains. The total raw scores are translated into standardized T-scores with a mean of 50 and a SD of 10

Collected at the time of enrollment, 30 days, and 6 months
Diverticulitis quality of life (DV-QOL) instrument
時間枠:Collected at enrollment, then 14 and 30 days into the study.

This instrument was designed and validated to measure patient-reported burden of diverticular disease. It is a 17-question survey of patient-reported burden of disease focused on those with uncomplicated diverticular disease. The survey has raw scores 0-68, with higher scores indicating greater impact of diverticulitis on the patient's quality of life. The raw scores are scaled to a 10-point scale.

Collected at enrollment, then 14 and 30 days into the study.
Patient-Reported Outcomes Measurement Information System, Gastrointestinal
時間枠:Collected at enrollment and 14 days into study

5 item survey that assesses abdominal pain, scored 5-25 with higher scores indicating more severe abdominal pain

Collected at enrollment and 14 days into study
Time to normalization of abdominal pain intensity
時間枠:Collected at enrollment, daily for 30 days, and at 6 months

11-point numerical rating scale (NRS) from 0 (no pain) to 10 (worst possible pain) that asks subjects daily to rate their worst abdominal pain over the past 24-hours

Collected at enrollment, daily for 30 days, and at 6 months
Rate of Progression to Complicated Diverticulitis
時間枠:Collected at enrollment, 14 days, 30 days, and 6 months

Captured via review of the EMR and any follow up CT scans

Collected at enrollment, 14 days, 30 days, and 6 months
Rate of persistent diverticulitis at 30 days
時間枠:Collected 30 days from enrollment

DV-QOL scores below the patient acceptable symptom state threshold of 3.2/10

Collected 30 days from enrollment
Rate of diverticulitis-related hospitalization, percutaneous drainage and colectomy
時間枠:From enrollment through study completion, an average of 2 years

Collected from EMR and patient queries

From enrollment through study completion, an average of 2 years
Mortality
時間枠:From enrollment through study completion, an average of 2 years

Obtained from Social Security Administration Death Master File

From enrollment through study completion, an average of 2 years
Adverse Drug Events
時間枠:From enrollment through study completion, an average of 2 years

Including, but not limited to rash, diarrhea, urticaria and anaphylaxis will be captured using self-reported surveys with review of the EMR

From enrollment through study completion, an average of 2 years
Return to normal activity
時間枠:From enrollment through study completion, an average of 2 years

For subjects who currently are employed, the researchers will ask baseline information about past-month work absenteeism (missed work due to health) and presenteeism (impaired work due to health). The subject will complete the validated Work Productivity and Activity Impairment questionnaire. At each follow up period, the researchers will repeat these measures and inquire if they had suffered an adverse work event (firing, demotion) and if they have had to go on any leave.

This is a 6- item instrument on a visual analog scale of 0-10. Scores for each item are multiplied by 100 to calculate percentages. The WPAI calculates percentage impairment (maximum 100%) with higher numbers representing greater work impairment.

From enrollment through study completion, an average of 2 years
Recurrence
時間枠:From 8 weeks into the study through study completion, an average of 2 years

CT-proven acute diverticulitis after complete resolution of symptoms more than 2 months after initial evaluation in the ED. This will be captured by review of the EMR and direct patient query

From 8 weeks into the study through study completion, an average of 2 years

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。

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。

一般刊行物

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)

2026年7月7日

一次修了 (推定)

2028年4月1日

研究の完了 (推定)

2028年10月1日

試験登録日

最初に提出

2026年3月11日

QC基準を満たした最初の提出物

2026年3月18日

最初の投稿 (実際)

2026年3月25日

学習記録の更新

投稿された最後の更新 (実際)

2026年9月21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17日

最終確認日

2026年9月1日

詳しくは

本研究に関する用語

個々の参加者データ (IPD) の計画

個々の参加者データ (IPD) を共有する予定はありますか?

未定

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

はい

米国FDA規制機器製品の研究

いいえ

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