Perforated Appendicitis and Postoperative Antibiotics Pilot Trial (PAPA Pilot)
The goal of this clinical trial is to learn if not giving antibiotics is as effective as giving antibiotics after surgery for patients who have surgery for a perforated (burst) appendix. This pilot study will also help determine whether a larger, multi-centre study can be successfully conducted. The main questions it aims to answer are:
- Do patients who do not receive antibiotics after surgery have similar rates of infection after surgery as patients who do?
- Is it feasible to enroll and randomize patients and collect complete health data for a larger multi-centre study?
Researchers will compare patients who do not receive antibiotics after surgery to patients who do to see whether avoiding antibiotics is as effective as using antibiotics for preventing infections after surgery.
Participants will:
- Be randomly assigned to either receive or not receive antibiotics after surgery for their perforated (burst) appendix.
- Be contacted 30 and 90 days after surgery to check for infections and other health outcomes.
研究概览
详细说明
Acute appendicitis, a sudden and severe inflammation of the appendix, is the most common emergency general surgery condition worldwide. In some cases, the appendix perforates, leading to contamination or infection within the abdominal cavity. Complicated appendicitis is associated with higher morbidity and mortality, including a higher risk of surgical site infections (SSIs). Approximately 20% of patients with complicated appendicitis develop an SSI, compared to about 5% of patients with uncomplicated appendicitis.
The use of antibiotics before surgery is well established and standard practice to reduce SSI risk. However, there is limited evidence to guide the use of antibiotics after surgery in patients with complicated appendicitis. Antibiotics carry potential risks, including allergic reactions, gastrointestinal side effects, and secondary infections, and their overuse contributes to antimicrobial resistance, which is a growing global health concern. As a result, there is a considerable variation in clinical practice, with some surgeons routinely prescribing post-operative antibiotics and others choosing not to.
Large, high-quality randomized controlled trials (RCTs), the gold-standard in clinical research, are needed to understand if post-operative antibiotics are necessary in this population. The current study will evaluate the impact of post-operative antibiotics on SSIs in patients with perforated appendicitis. This pilot specifically aims to determine the feasibility of a larger, multi-centre RCT, and will assess our ability to enroll and randomize patients, and to collect complete health data using an existing framework. Patients will be randomly assigned to receive post-operative antibiotics or no post-operative antibiotics after surgery for perforated appendicitis, and will be followed until 30 days after surgery to assess incidence of SSIs, with additional outcomes collected up to 90 days post-surgery.
研究类型
注册 (估计的)
阶段
- 不适用
参与标准
资格标准
适合学习的年龄
- 成人
- 年长者
接受健康志愿者
描述
Inclusion Criteria:
- Adults aged 18 years or older
- Scheduled to undergo an open or laparoscopic appendectomy
- Complicated appendicitis confirmed intra-operatively (AAST Appendicitis Grade III or IV)
Exclusion Criteria:
- Patients demonstrating signs of septic shock for whom the omission of systemic antibiotics is contraindicated
- Patients with positive blood cultures for whom antibiotics are required for treatment of the bacteremia
- Immunosuppressed patients
- AAST Appendicitis Grade V
学习计划
研究是如何设计的？
设计细节
- 主要用途：治疗
- 分配：随机化
- 介入模型：并行分配
- 屏蔽：无（打开标签）
武器和干预
参与者组/臂 |
干预/治疗 |
|---|---|
|
有源比较器：Postoperative antibiotics
Patients receive antibiotics following surgery for perforated appendicitis.
|
Patients receive oral antibiotics following surgery for perforated appendicitis.
The dose, duration, and type are at the discretion of the treating physician.
|
|
有源比较器：No postoperative antibiotics
Patients do not receive antibiotics following surgery for perforated appendicitis.
|
Patients do not receive antibiotics following surgery for perforated appendicitis.
|
研究衡量的是什么？
主要结果指标
结果测量 |
措施说明 |
大体时间 |
|---|---|---|
|
Average number of participants enrolled per month across multiple sites.
大体时间：First to last day of each month of recruitment phase (1 year).
|
Assessment of accrual: feasible if 10 or more overall.
|
First to last day of each month of recruitment phase (1 year).
|
|
Percentage of participants who receive the correct intervention.
大体时间：From beginning to end of recruitment phase (1 year).
|
Assessment of ability to accurately deliver the intervention that participants were randomized to receive: feasible if >90% of participants receive the assigned intervention.
|
From beginning to end of recruitment phase (1 year).
|
|
Percentage of patient-reported outcomes collected.
大体时间：Duration of the study (1 year). For each participant, data collected 30 and 90 days after surgery.
|
Assessment of ability to collect complete data for patient reported outcomes.
Feasible if >80% of data is collected directly from patients with an additional 10% collected from patient health records.
|
Duration of the study (1 year). For each participant, data collected 30 and 90 days after surgery.
|
次要结果测量
结果测量 |
措施说明 |
大体时间 |
|---|---|---|
|
Quality of Life, as assessed by EQ-5D-5L.
大体时间：30 and 90 days after surgery for perforated appendicitis.
|
Level Sum Score can be calculated, ranging from 5 to 25, with higher scores representing a worse health status.
|
30 and 90 days after surgery for perforated appendicitis.
|
|
Post-operative pain, as assessed by PROMIS Pain Inventory.
大体时间：30 days after surgery for perforated appendicitis.
|
5-point Likert scale, with higher scores (i.e., 5 or "very much") indicating higher levels of pain.
|
30 days after surgery for perforated appendicitis.
|
|
Percentage of patients with surgical site infections, as assessed by Participant Assessment of Surgical Wound questionnaire.
大体时间：30 days after surgery for perforated appendicitis.
|
5 questions (4 yes/no answers, 1 check all that apply).
|
30 days after surgery for perforated appendicitis.
|
|
Percentage of participants prescribed systemic antibiotics.
大体时间：Within 30 days after surgery for perforated appendicitis.
|
Collected from Participant Assessment of Surgical Wound questionnaire or patient health records.
|
Within 30 days after surgery for perforated appendicitis.
|
|
Post-operative complications, as assessed by Health Resource Utilization questionnaire.
大体时间：Within 90 days after surgery for perforated appendicitis.
|
6 questions (5 yes/no, 1 check all that apply).
|
Within 90 days after surgery for perforated appendicitis.
|
|
Healthcare utilization, as assessed by Health Resource Utilization questionnaire.
大体时间：Within 90 days after surgery for perforated appendicitis.
|
Healthcare utilization, including number of: reinterventions, all-cause reoperations, emergency department visits, all-cause unplanned family physician or walk-in clinic visits, and all-cause readmissions and length of stay of each readmission.
|
Within 90 days after surgery for perforated appendicitis.
|
合作者和调查者
研究记录日期
研究主要日期
学习开始 (估计的)
初级完成 (估计的)
研究完成 (估计的)
研究注册日期
首次提交
首先提交符合 QC 标准的
首次发布 (实际的)
研究记录更新
最后更新发布 (实际的)
上次提交的符合 QC 标准的更新
最后验证
更多信息
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