Canadian North Helicobacter Pylori (CANHelp) Working Group Treatment Trials
试验速览
- 阶段
- 4 期
- 状态
- 已完成
- 入组人数
- 338
- 试验地点
- 1
- 主要终点
- Post-treatment H. pylori status by urea breath test
研究概览
简要总结
The CANHelp Working Group Treatment Trials are part of a comprehensive research program carried out by the Canadian North Helicobacter pylori (CANHelp) Working Group. The treatment component involves a series of community-specific trials designed with community input and varying on the specific treatment regimens and number of treatment arms among other study details.
详细描述
The CANHelp Working Group is a collaborative team that links University of Alberta researchers with Canadian northern community leaders and health officials in a collaborative effort to investigate H. pylori infection with the goal of finding solutions to community concerns about health risks. The research program uses a community-driven research approach in northern communities to characterize the burden of disease from H. pylori infection and exchange knowledge with community members and decision makers to identify ways to reduce health risks from this infection.
For the participating communities, the treatment trials aim to:
- Estimate the effectiveness of alternate H. pylori treatment regimens to identify optimal regimens for the local setting
- Identify factors external to the treatment regimen that influence short- and long-term treatment success
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Parallel
- 主要目的
- Treatment
- 盲法
- Single (Outcomes Assessor)
入排标准
- 年龄范围
- 16 Years 至 —（Child, Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •Over 15 years of age
- •Identified as H. pylori infected with a positive urea breath test and/or biopsy-based evidence of H. pylori infection
排除标准
- •Allergy to amoxicillin, metronidazole or clarithromycin
- •Antibiotic therapy within 4 weeks prior to randomization
- •Pregnant or breastfeeding
- •Severe cardio-respiratory, pulmonary, endocrine, hepatic or renal disease
研究组 & 干预措施
Standard Triple, treatment naive
Standard Triple Therapy for H. pylori:
Oral twice-daily doses of rabeprazole (20 mg), amoxicillin (1 g) and clarithromycin (500 mg)
One of two treatments randomly assigned to treatment naive participants in Aklavik
干预措施: Standard Triple (Drug)
Sequential, treatment naive
Sequential Therapy for H. pylori:
Oral twice-daily doses of rabeprazole (20 mg) and amoxicillin (1 g) on days 1-5, and on days 6-10, rabeprazole (20 mg), metronidazole (500 mg) and clarithromycin (500 mg)
One of two treatments randomly assigned to treatment naive participants in Aklavik, Old Crow, Tuktoyaktuk & Fort McPherson
干预措施: Sequential (Drug)
Quadruple, treatment naive
Quadruple Thearpy for H. pylori:
Oral doses of rabeprazole (20 mg) twice daily, metronidazole (500 mg) three times daily, bismuth subsalicylate (Pepto-Bismol) (2 tablets) four times daily and tetracycline (500 mg) four times daily
One of two treatments randomly assigned to treatment naive participants in Old Crow, Tuktoyaktuk & Fort McPherson
干预措施: Quadruple (Drug)
Sequential, previous failure(s)
Sequential Therapy for H. pylori:
Oral twice-daily doses of rabeprazole (20 mg) and amoxicillin (1 g) on days 1-5, and on days 6-10, rabeprazole (20 mg), metronidazole (500 mg) and clarithromycin (500 mg)
One of two treatments randomly assigned to participants who previously failed one or more treatments in Aklavik, Old Crow, Tuktoyaktuk & Fort McPherson
干预措施: Sequential (Drug)
Quadruple, previous failure(s)
Quadruple Therapy for H. pylori:
Oral doses of rabeprazole (20 mg) twice daily, metronidazole (500 mg) three times daily, bismuth subsalicylate (Pepto-Bismol) (2 tablets) four times daily and tetracycline (500 mg) four times daily
One of two treatments randomly assigned to participants who previously failed treatment in Aklavik, Old Crow, Tuktoyaktuk & Fort McPherson
干预措施: Quadruple (Drug)
Sequential, clarithromycin-resistant
Sequential Therapy for H. pylori:
Oral twice-daily doses of rabeprazole (20 mg) and amoxicillin (1 g) on days 1-5, and on days 6-10, rabeprazole (20 mg), metronidazole (500 mg) and clarithromycin (500 mg)
One of two treatments randomly assigned to participants with known clarithromycin resistance in Aklavik
干预措施: Sequential (Drug)
Quadruple, clarithromycin-resistant
Quadruple Therapy for H. pylori:
Oral doses of rabeprazole (20 mg) twice daily, metronidazole (500 mg) three times daily, bismuth subsalicylate (Pepto-Bismol) (2 tablets) four times daily and tetracycline (500 mg) four times daily
One of two treatments randomly assigned to participants with known clarithromycin resistance in Aklavik
干预措施: Quadruple (Drug)
结局指标
主要结局
Post-treatment H. pylori status by urea breath test
时间窗: A minimum of 10 weeks after participant has completed treatment
Treatment effectiveness, defined as the probability (average risk) of elimination of H. pylori infection following treatment, measured as the proportion of trial participants with a negative post-treatment urea breath test at least 10 weeks following completion of treatment. Using an intention-to-treat analysis, the denominator for this proportion is the number of trial participants assigned treatment. Using a per-protocol analysis, the denominator for this proportion is the number of trial participants who completed treatment and were tested post-treatment. Participants are administered a urea breath test using 13C-labeled urea dissolved in a citric acid solution. We use the following test value classifications for determining the outcome: \>=4.0 (Positive for H. pylori infection) Between 2.5 and 4.0 (Borderline; repeat test) Between 2.4 and -1.99 (Negative for H. pylori infection) Less than -2.0 (Uncertain test result, repeat test)
次要结局
- Adherence to treatment regimen(An expected average of 1 week after treatment is completed)
研究者
Karen Goodman
Professor
University of Alberta