Transplantation of Anaerobic Cultured Human Intestinal Microbiota in Irritable Bowel Syndrome (ACHIM2)
調査の概要
詳細な説明
Diarrhea-dominated irritable bowel syndrome (IBS-D) is studied in subjects by treatment with an anaerobic human intestinal microbiota cultured for 15 years and quality controlled with a specified content of bacterial species regularly over the years. Inclusion criteria is: Diarrheal disease since at least 4 weeks, 18-80 years of age, previously unsuccessful treatment with no symptomatic relief of antidiarrheals or resins, and signed informed consent.
Primary outcome was irritable bowel syndrome-symptom severity scale (IBS-SSS). Secondary outcome was Bristol stool scale (BSS).
Secondary outcome: Changes in fecal microflora distribution and multiplicity as shown by the 16S ribosomal ribonucleic acid (rRNA) analysis of feces.
Once eligible for the study, patients were monitored for a run-in period of one week with the IBS-SSS and the BSS plus fecal samples for analysis of bacterial species using the bacterial specific 16S rRNA differentiation.
Then, the anaerobic cultured human intestinal microflora (ACHIM) was given twice with an interval of 1 week. Thereafter, patients were further monitored over 4 weeks as regards IBS-SSS and BSS. Another feces sample was also collected for bacterial 16S rRNA analysis to evaluate the microbiota diversity.
The study will be evaluated using eligible subjects as their own controls by means of Wilcoxon's matched-pairs test, alternatively t-test for matched pairs.
Power analysis show that 40 subjects are needed to study in order to achieve a power of 80%.
研究の種類
入学 (予想される)
段階
- フェーズ2
連絡先と場所
研究場所
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Stockholm、スウェーデン、11157
- 募集
- Mag-tarm/endoskopienheten Hötorget
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コンタクト:
- Peter Benno, MD, PhD
- 電話番号:+46 7055795554
- メール:Peter.Benno@endoskopienheten.se
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コンタクト:
- Per Hellström, MD; PhD
- 電話番号:+46 70 3727423
- メール:Per.Hellstrom@medsci.uu.se
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参加基準
適格基準
就学可能な年齢
健康ボランティアの受け入れ
受講資格のある性別
説明
Inclusion Criteria:
- IBS according to the Rome III criteria
Exclusion Criteria:
- Pregnancy
- Antibiotic and probiotics within 8 weeks before inclusion
- Unable to give informed consent
- Immunodeficiency (drug- och disease-related)
研究計画
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:なし
- 介入モデル:単一グループの割り当て
- マスキング:なし(オープンラベル)
武器と介入
参加者グループ / アーム |
介入・治療 |
|---|---|
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実験的:Treatment arm
Only one treatment arm.
Patients are allocated under disease condition and later treated with ACHIM.
The post-treatment disease progression is monitored.
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After an observation period of 4 weeks patients with IBS-D will be treated with ACHIM
他の名前:
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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 |
時間枠 |
|---|---|
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Symptom relief according to irritable bowel syndrome-symptom severity scale (IBS-SSS)
時間枠:4 weeks
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4 weeks
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二次結果の測定
結果測定 |
メジャーの説明 |
時間枠 |
|---|---|---|
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Differential bacterial species population as defined by 16S RNA
時間枠:4 weeks
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Description of different bacterial species harboring in fecal samples before and after treatment with ACHIM.
Exploratory outcome measure.
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4 weeks
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Normalization of stool consistency as determined by the Bristol stool scale
時間枠:4 weeks
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Normalization as determined by the Bristol stool scale
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4 weeks
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協力者と研究者
スポンサー
捜査官
- スタディディレクター:Per Hellström, MD, PhD、Uppsala University
出版物と役立つリンク
一般刊行物
- Francis CY, Morris J, Whorwell PJ. The irritable bowel severity scoring system: a simple method of monitoring irritable bowel syndrome and its progress. Aliment Pharmacol Ther. 1997 Apr;11(2):395-402. doi: 10.1046/j.1365-2036.1997.142318000.x.
- Lewis SJ, Heaton KW. Stool form scale as a useful guide to intestinal transit time. Scand J Gastroenterol. 1997 Sep;32(9):920-4. doi: 10.3109/00365529709011203.
- Smits LP, Bouter KE, de Vos WM, Borody TJ, Nieuwdorp M. Therapeutic potential of fecal microbiota transplantation. Gastroenterology. 2013 Nov;145(5):946-53. doi: 10.1053/j.gastro.2013.08.058. Epub 2013 Sep 7.
- Benno P, Norin E, Midtvedt T, Hellstrom PM. Therapeutic potential of an anaerobic cultured human intestinal microbiota, ACHIM, for treatment of IBS. Best Pract Res Clin Gastroenterol. 2019 Jun-Aug;40-41:101607. doi: 10.1016/j.bpg.2019.03.003. Epub 2019 Apr 29.
研究記録日
主要日程の研究
研究開始
一次修了 (予想される)
研究の完了 (予想される)
試験登録日
最初に提出
QC基準を満たした最初の提出物
最初の投稿 (見積もり)
学習記録の更新
投稿された最後の更新 (実際)
QC基準を満たした最後の更新が送信されました
最終確認日
詳しくは
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