Characterization of Colorectal Dysplasic Lesions and Stratification of Their Evolving Risk in Inflammatory Bowel Disease Patients: a Prospective, Observational and Multicenter Study (IB DYSPLASIA)
Inflammatory Bowel Disease (IBD) patients have an increased risk of ColoRectal Cancer (CRC). The cumulative risk of CRC development is estimated at 1% after 10 years of disease progression, 2% after 20 years, and 5% after more than 20 years of disease progression (1). The incidence of CRC in IBD has gradually declined, attributed to enhanced detection of preneoplastic lesions (dysplasia), improved adherence to screening recommendations, utilization of advanced high-definition endoscopes (2-4), and the implementation of more efficacious therapeutic strategies (5-9).
Presently, there is no consensus on the endoscopic management of dysplastic lesions. Recent techniques such as submucosal dissection (ESD) enable the resection of non-polypoid flat lesions larger than 2 cm. Lesions previously treated with colectomy can now be resected by ESD with en-bloc resection rates of approximately 85.7% (17). However, long-term data on the risk of local or distant recurrence after endoscopic resection in IBD is lacking. It is crucial to evaluate complete (R0) and curative resection rates, as well as the rate of local recurrence, based on the type of endoscopic treatment.
In light of the 21st century advancements, characterized by high-definition endoscopes and targeted treatments, it is imperative to:
- Assess the prevalence and incidence of dysplasia in IBD and its risk of progression to CRC.
- Specifically characterize the endoscopy and histology of pre-neoplastic lesions in IBD to facilitate better selection of lesions amenable to endoscopic treatment or surgery.
- Evaluate the rates of local and distant recurrence over time, considering factors associated with this evolving risk (IBD characteristics, endoscopic appearance, histology, type of resection, etc.).
調査の概要
研究の種類
入学 (推定)
連絡先と場所
研究連絡先
- 名前：SEGUIN A Project manager
- 電話番号：+ 33 (0) 7 66 42 69 85
- メール：aseguin@getaid.org
参加基準
適格基準
就学可能な年齢
- 大人
- 高齢者
健康ボランティアの受け入れ
サンプリング方法
調査対象母集団
説明
Inclusion Criteria:
- Patients age ≥ 18 years
- Documented diagnosis of CD or UC established based on standard clinical, endoscopic and histological criteria.
IBD patients requiring screening colonoscopy for dysplasia as following:
- IBD (CD/UC) evolving for more than 8 years, or for ≥1 year if associated with Primary Sclerosing Cholangitis (PSC)
- For UC: Extended ulcerative colitis (E2 or E3 in the Montreal classification)
- For CD: Colonic (L2) or ileocolonic (L3) Crohn's disease with > 50% involvement of the colon.
- Patient affiliated to the health security system
- Patient who has received information about the study by the investigator and agreed to participate.
Exclusion Criteria:
- Patient followed for ileal Crohn's disease (L1)
- Patient followed for rectal ulcerative colitis (E1)
- Patient referred for a therapeutic endoscopic procedure, without prior or subsequent follow-up in the participating center
- Patients < 18 years old
- Patient under guardianship or curatorship
- Patient objects to their personal data being used in the context of research
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
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 |
|---|---|---|
|
To evaluate the prevalence of dysplasia in patients with IBD at high risk of preneoplastic lesions followed prospectively in a screening program at the time of high-definition endoscopes.
時間枠："From enrollment to the end of study at 7 years"
|
The primary endpoint is the prevalence of dysplasia in IBD patients at high risk of dysplasia estimated at their first endoscopy in the study.
|
"From enrollment to the end of study at 7 years"
|
協力者と研究者
研究記録日
主要日程の研究
研究開始 (推定)
一次修了 (推定)
研究の完了 (推定)
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 (実際)
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
本研究に関する用語
その他の研究ID番号
- 2025-A02237-42
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?
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
米国FDA規制機器製品の研究
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