Clinical trial · Observational
Prediction of the Chronicization of Radiation-induced Acute Intestinal Injury
Prediction of the Chronicization of Radiation-induced Acute Intestinal Injury Based on the Expression Level of Immune Factors: a Prospective, Observational and Confirmatory Clinical Study
- Source
- ClinicalTrials.gov
- Retrieved
- Sep 8, 2026
- Layer
- normalized (units and labels harmonized; values unchanged)
- Run
- ING-CLINICALTRIALS-20260908-000001
Summary
Brief summary (as posted)
Our team has constructed a prediction model based on the expression level of immune factors (PD-L1, PD-1, CTLA4, Siglec15) to predict the chronicization of radiation-induced acute intestinal injury (RAII) and verified the predictive efficacy of the system in retrospective studies. This clinical study intends to further prospectively verify the accuracy of this prediction model in rectal cancer patients. In this study, we plan to enroll 200 patients diagnosed with locally advanced rectal cancer by pathology and MRI, who undergo neoadjuvant chemoradiotherapy (NCRT) and total mesorectal excision (TME) and develop RAII during NCRT or within 1 month. We will follow up the occurrence and progression of radiation-induced intestinal injury within 1 year after TME. Expression levels of immune factors will be detected in pathological tissue after TME and applied to the prediction model to predict the chronicization of RAII. Based on the clinical diagnosis of chronic radiation-induced intestinal injury, the area under curve (AUC), accuracy, precision, specificity, and sensitivity of this prediction model in predicting the chronicization of RAII will be evaluated. The main outcome hypothesis is that the AUC of chronicization of RAII predicted by the prediction model based on the expression level of immune factors is more than 0.8.
Conditions
Conditions (1)
Free-text conditions as registered, with the CancerIndex entity they were reconciled to and the match type.
| Condition (as posted) | Mapped entity | Match | Confidence |
|---|---|---|---|
| Radiation-induced Intestinal Injury | — | UNRESOLVED | — |
Interventions
Interventions (1)
| Intervention | Type | Mapped drug | Match |
|---|---|---|---|
| NCRT+TME | Other | — | UNRESOLVED |
Design
Arms and outcomes
Arms (1)
- label
- NCRT+TME
- description
- Neoadjuvant chemoradiotherapy (NCRT) and total mesorectal excision (TME) Interventions
- interventionNames
- Other: NCRT+TME
Primary outcomes (1)
- measure
- AUC
- timeFrame
- 1 year after TME
- description
- Area Under Curve of the prediction model in predicting chronicization of RAII.
Secondary outcomes (1)
- measure
- Accuracy, precision, specificity, and sensitivity
- timeFrame
- 1 year after TME
- description
- Accuracy, precision, specificity, and sensitivity of the prediction model in predicting chronicization of RAII.
Eligibility
Eligibility (as posted)
- Sex
- All
- Minimum age
- 18 Years
- Maximum age
- 75 Years
Show eligibility criteria text
Inclusion Criteria: * Written informed consent. 18-75 years of age. ECOG score for performance status is 0-2. Locally advanced rectal adenocarcinoma (T3-4/N+M0) with pathological and MRI diagnosis. Patient will undergo NCRT and TME therapies and develop RAII during NCRT or within 1 month. Exclusion Criteria: * Patients with other active malignant tumors. Patients who have received pelvic radiotherapy or immunotherapy. Pathological tissue cannot be obtained after TME. Patients with toxicity (CTCAE Grade ≥ 2) caused by previous treatment that has not subsided. Pregnant or lactating women.
References
Publications (5)
- BACKGROUNDFan J, Lin B, Fan M, Niu T, Gao F, Tan B, Du X. Research progress on the mechanism of radiation enteritis. Front Oncol. 2022 Sep 5;12:888962. doi: 10.3389/fonc.2022.888962. eCollection 2022. PMID 36132154
- BACKGROUNDMacNaughton WK. Review article: new insights into the pathogenesis of radiation-induced intestinal dysfunction. Aliment Pharmacol Ther. 2000 May;14(5):523-8. doi: 10.1046/j.1365-2036.2000.00745.x. PMID 10792113
- BACKGROUNDLefevre JH, Amiot A, Joly F, Bretagnol F, Panis Y. Risk of recurrence after surgery for chronic radiation enteritis. Br J Surg. 2011 Dec;98(12):1792-7. doi: 10.1002/bjs.7655. Epub 2011 Sep 16. PMID 21928361
- BACKGROUNDHernandez-Moreno A, Vidal-Casariego A, Calleja-Fernandez A, Kyriakos G, Villar-Taibo R, Urioste-Fondo A, Cano-Rodriguez I, Ballesteros-Pomar MD. CHRONIC ENTERITIS IN PATIENTS UNDERGOING PELVIC RADIOTHERAPY: PREVALENCE, RISK FACTORS AND ASSOCIATED COMPLICATIONS. Nutr Hosp. 2015 Nov 1;32(5):2178-83. doi: 10.3305/nh.2015.32.5.9562. PMID 26545675
- BACKGROUNDAnwar M, Ahmad S, Akhtar R, Mahmood A, Mahmood S. Antioxidant Supplementation: A Linchpin in Radiation-Induced Enteritis. Technol Cancer Res Treat. 2017 Dec;16(6):676-691. doi: 10.1177/1533034617707598. Epub 2017 May 22. PMID 28532242