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Clinical Trials/NCT06979882
NCT06979882Not yet recruitingNot Applicable

Investigating Multigene Methylation Dynamics in Treatment Response Surveillance for Intestinal Carcinoma

Xijing Hospital2 sites in 1 country200 target enrollmentStarted: May 25, 2025Last updated:
Conditions

Trial Snapshot

Phase
Not Applicable
Status
Not yet recruiting
Sponsor
Enrollment
200
Locations
2
Primary Endpoint
Multi-gene methylation levels

Study Overview

Brief Summary

The primary objective is to determine whether pretreatment-to-posttreatment changes in circulating multigene methylation levels correlate with objective response rates (ORR) assessed by contrast-enhanced CT/MRI and levels of serum tumor markers. Secondary endpoints include: (a) time-dependent association between methylation fluctuation patterns and progression-free survival (PFS), (b) comparative diagnostic accuracy of methylation indices versus conventional biomarkers, and (c) feasibility of using methylation thresholds to guide adaptive therapy modification.

Study Design

Study Type
Observational
Observational Model
Cohort
Time Perspective
Prospective

Eligibility Criteria

Ages
18 Years to 75 Years (Adult, Older Adult)
Sex
All
Accepts Healthy Volunteers
No

Inclusion Criteria

  • •Age at initial diagnosis: 18-75 years Histologically confirmed colorectal or small intestinal malignancy, with complete medical records, confirmed pathological diagnosis, and definitive staging data (TNM staging system) No history of other primary malignancies Absence of distant metastases (liver, lung, or other sites) confirmed by imaging examination (CT/MRI) No prior surgical resection, chemotherapy, or PD-1/PD-L1 immunotherapy before enrollment Availability of complete biospecimen information, including: Sample ID (medical record number), Demographic data (sex, age), Clinical diagnostic data, Tumor marker profiles (CEA, CA19-9, etc.)

Exclusion Criteria

  • •Life expectancy <6 months (as assessed by ECOG score ≥4 or Palliative Performance Scale ≤30%) Cognitive/psychiatric conditions: a. Legally incapacitated individuals without legal guardians, b. Active psychotic disorders (e.g., schizophrenia, bipolar disorder) or dementia (MMSE score <24) Investigator-determined exclusions

Outcomes

Primary Outcomes

Multi-gene methylation levels

Time Frame: Group three: pre-neoadjuvant therapy baseline, 1 week following neoadjuvant therapy, and post-neoadjuvant therapy at 1 month, 3 months, 6 months, 1 year, 18 months (1.5 years), 2 years, 3 years, 4 years, and 5 years.

Secondary Outcomes

  • Tumor Markers (including CEA, AFP, CA125, CA19-9, CA72-4, etc.)(Group three: pre-neoadjuvant therapy baseline, 1 week following neoadjuvant therapy, and post-neoadjuvant therapy at 1 month, 3 months, 6 months, 1 year, 18 months (1.5 years), 2 years, 3 years, 4 years, and 5 years.)
  • Endoscope(Group three: pre-neoadjuvant therapy baseline, 1 week following neoadjuvant therapy, and post-neoadjuvant therapy at 1 month, 3 months, 6 months, 1 year, 18 months (1.5 years), 2 years, 3 years, 4 years, and 5 years.)
  • Imaging Examinations (including contrast-enhanced CT, PET/CT, ultrasound, X-ray, magnetic resonance imaging, etc.)(Group three: pre-neoadjuvant therapy baseline, 1 week following neoadjuvant therapy, and post-neoadjuvant therapy at 1 month, 3 months, 6 months, 1 year, 18 months (1.5 years), 2 years, 3 years, 4 years, and 5 years.)

Investigators

Sponsor
Xijing Hospital
Sponsor Class
Other
Responsible Party
Sponsor

Study Sites (2)

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