Multicenter observational study on the treatment outcomes of colorectal cancer

Multicenter observational study on the treatment outcomes of colorectal cancer - Multicenter observational study on the treatment outcomes of colorectal cancer

Status

Recruiting

Phases

Unknown

Study type

Observational

Source

JPRN

Registry ID

JPRN-UMIN000058561

Enrollment

30000

Registered

2025-07-23

Start date

2024-07-31

Completion date

Unknown

Last updated

2026-06-29

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

Conditions

Colorectal cancer

Interventions

None listed

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: Patients who meet all of the following criteria are eligible. 1) Patients diagnosed with colorectal cancer 2) Patients who have undergone surgical treatment

Exclusion criteria

Exclusion criteria: No exclusion criteria were set for this study.

Design outcomes

Primary

Measure	Time frame
5-year overall survival rate for each surgical approach (open, laparoscopic, robotic)	—

Secondary

Measure	Time frame
1. Five-year recurrence-free survival rates by surgical approach 2. Safety and efficacy of preoperative treatment (adverse events, treatment completion rate, response rate, recurrence-free survival period, cancer-specific survival period, overall survival period) 3. Incidence of postoperative complications by surgical procedure and approach, and identification of risk factors for postoperative complications4. Correlation between intraoperative findings and perioperative complications by surgical procedure 5. Incidence of postoperative abdominal wall hernia 6. Administration of postoperative adjuvant therapy and its details 7. Recurrence patterns and recurrence rates: Recurrence sites are classified as local recurrence, distant recurrence, or unknown as recurrence patterns. 8. Association between types of treatment after recurrence and long-term prognosis 9. Association between postoperative complications and long-term outcomes 10. Treatment outcomes in cases with organ invasion 11. Treatment outcomes in cases with concurrent distant metastasis 12. Treatment outcomes by surgical approach in obese patients 13. Treatment outcomes by surgical approach in elderly patients 14. Treatment outcomes of para-aortic lymph node dissection 15. Treatment outcomes in cases with comorbidities 16. Diagnostic accuracy of preoperative MRI for primary tumor depth and lateral lymph node metastasis 17. Short-term and long-term outcomes of lateral lymph node dissection 18. Lymph node dissection efficacy using the dissection index 19. Identification of risk factors for perioperative complications in ostomy and ostomy closure procedures 20. Association between aortic calcification volume measurement and perioperative complication incidence 21. Association between sarcopenia and perioperative complication incidence 22. Development of a predictive model using machine learning 23. Comparison of medical costs by surgical procedure and approach	—

Measure

Time frame

1. Five-year recurrence-free survival rates by surgical approach 2. Safety and efficacy of preoperative treatment (adverse events, treatment completion rate, response rate, recurrence-free survival period, cancer-specific survival period, overall survival period) 3. Incidence of postoperative complications by surgical procedure and approach, and identification of risk factors for postoperative complications4. Correlation between intraoperative findings and perioperative complications by surgical procedure 5. Incidence of postoperative abdominal wall hernia 6. Administration of postoperative adjuvant therapy and its details 7. Recurrence patterns and recurrence rates: Recurrence sites are classified as local recurrence, distant recurrence, or unknown as recurrence patterns. 8. Association between types of treatment after recurrence and long-term prognosis 9. Association between postoperative complications and long-term outcomes 10. Treatment outcomes in cases with organ invasion 11. Treatment outcomes in cases with concurrent distant metastasis 12. Treatment outcomes by surgical approach in obese patients 13. Treatment outcomes by surgical approach in elderly patients 14. Treatment outcomes of para-aortic lymph node dissection 15. Treatment outcomes in cases with comorbidities 16. Diagnostic accuracy of preoperative MRI for primary tumor depth and lateral lymph node metastasis 17. Short-term and long-term outcomes of lateral lymph node dissection 18. Lymph node dissection efficacy using the dissection index 19. Identification of risk factors for perioperative complications in ostomy and ostomy closure procedures 20. Association between aortic calcification volume measurement and perioperative complication incidence 21. Association between sarcopenia and perioperative complication incidence 22. Development of a predictive model using machine learning 23. Comparison of medical costs by surgical procedure and approach

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Countries

Japan

Contacts

Public ContactHiroki Ohya

Yokohama City University Department of Gastroenterological Surgery

t226020e@yokohama-cu.ac.jp045-787-2800

Outcome results