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Dosimetric Limitation of Pelvic Bone and Peritoneal Space in Rectal Cancer Patients During Chemoradiotherapy

Dosimetric Limitation of Pelvic Bone and Peritoneal Space in Rectal Cancer Patients During During Neoadjuvant Chemoradiation With Capecitabine and Irinotecan

Status
UNKNOWN
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05688033
Enrollment
200
Registered
2023-01-18
Start date
2021-01-01
Completion date
2023-12-30
Last updated
2023-01-18

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Rectal Cancer

Brief summary

This project first retrospectively analyzes the intestinal dose indicators related to the concurrent radiotherapy and chemotherapy of rectal cancer and gastrointestinal toxicity, and the pelvic dose indicators related to hematological toxicity, and then prospectively conducts radiotherapy based on the dose indicators most closely related to toxicity. The dose is limited when the plan is made to reduce the gastrointestinal and hematological toxicity of rectal cancer with concurrent radiotherapy and chemotherapy.

Interventions

RADIATIONdosimetric limitation of pelvic bone and peritoneal space during radiotherapy

dosimetric limitation of pelvic bone and peritoneal space during radiotherapy

Sponsors

Fudan University
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to 70 Years
Healthy volunteers
No

Inclusion criteria

1. Patients with rectal adenocarcinoma 2. Clinical staged T3/4 or any node-positive disease 3. Age of 18-75 years 4. Karnofsky Performance Status \> 80 5. Adequate bone marrow reserve, renal and hepatic functions 6. Without previous antitumoural chemotherapy 7. No evidence of metastatic disease 8. Written informed consent before randomization 9. UGT1A1's genotype of 6/6 or 6/7

Exclusion criteria

1. Clinical staged I or IV 2. Age of \<18 or \>75 years 3. Karnofsky Performance Status \< 80 4. Previous pelvis radiotherapy 5. Previous antitumoural chemotherapy 6. Clinically significant internal disease 7. Refuse to write informed consent before randomization 8. UGT1A1's genotype of 7/7

Design outcomes

Primary

MeasureTime frame
Number of Participants Experiencing Adverse Eventsup to 3 years

Secondary

MeasureTime frame
Number of Participants in Who Experienced Tumor Down-stagingup to 3 years

Countries

China

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026