{"entity":{"id":"nct05807984","kind":"trial","name":"Re-irradiation Therapy of Locally Recurrent Rectal Cancer With Carbon Ion","aka":[],"tldr":"A phase 2 trial in colorectal cancer, run by Xin Cai, not yet recruiting.","summary":"Re-irradiation Therapy of Locally Recurrent Rectal Cancer With Carbon Ion is a phase 2, interventional study registered as NCT05807984 by Xin Cai, with a registry enrolment figure of 31 participants, started 2023-05-01 and due to reach its primary completion in 2025-12-31. Interventions recorded: Carbon ion radiation therapy DT: 74Gy/20 fractions. Conditions listed: Rectal Cancer; Recurrent. Primary outcome: local control. Colorectal eligibility wording from the registry: \"* 1\\) pathologically confirmed rectal adenocarcinoma (including mucinous adenocarcinoma and signet-ring cell carcinoma) and LRRC confirmed by biopsy or clinical diagnosis,\". Sites: China. No results are recorded here; the registry entry is the source.","status":"planned","asOf":"2026-09-24","links":[{"label":"ClinicalTrials.gov NCT05807984","url":"https://clinicaltrials.gov/study/NCT05807984"}],"tags":["ctgov-ingest","colorectal-deep-dive"],"related":[],"cancers":["rectal-cancer"],"sections":[],"technologies":["imrt-igrt"],"targets":[],"drugs":[],"companies":[],"institutions":[],"pathways":[],"terms":[],"trials":[],"people":[],"bottlenecks":[],"keyPapers":[],"journals":[],"dependsOn":[],"notes":[],"nct":"NCT05807984","phase":"2","setting":"A Prospective Phase II Clinical Study of Carbon Ion Re-irradiation in Unresectable Locally Recurrent Rectal Cancer","sponsor":"Xin Cai","enrolled":31,"enrolledBasis":"registry","outcomes":[]},"route":"/trials/nct05807984/","neighbours":{"cancer":[{"id":"rectal-cancer","kind":"cancer","name":"Rectal cancer","route":"/cancers/rectal-cancer/"}],"technology":[{"id":"imrt-igrt","kind":"technology","name":"IMRT / IGRT (modern external beam)","route":"/technologies/imrt-igrt/"}],"term":[{"id":"colorectal-trials-open-today","kind":"term","name":"Colorectal cancer trials open today (registry snapshot)","route":"/terms/colorectal-trials-open-today/"}]}}