Total Neoadjuvant Therapy With PD-1 for Locally Advcancer Rectal Cancer
TNT-Immunity
Efficacy and Safety of Total Neoadjuvant Chemoradiotherapy Combined With PD-1 Therapy for Locally Advanced Rectal Cancer With High Risk of Recurrence
1 other identifier
interventional
30
0 countries
N/A
Brief Summary
Research Objective:To investigate the efficacy and safety of the "total neoadjuvant chemoradiotherapy combined with immunotherapy" regimen for the treatment of locally advanced rectal cancer with high-risk features for recurrence. Study Design:A single-arm, multicenter clinical study. Study Population: Patients with locally advanced rectal cancer presenting with high-risk features for local recurrence.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P25-P50 for phase_2
Started Oct 2025
Longer than P75 for phase_2
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
September 25, 2025
CompletedStudy Start
First participant enrolled
October 1, 2025
CompletedFirst Posted
Study publicly available on registry
October 9, 2025
CompletedPrimary Completion
Last participant's last visit for primary outcome
December 31, 2027
ExpectedStudy Completion
Last participant's last visit for all outcomes
December 31, 2030
October 9, 2025
September 1, 2025
2.2 years
September 25, 2025
October 8, 2025
Conditions
Outcome Measures
Primary Outcomes (1)
pathological complete response rate
the incidence of no tumor residual after the treatment
up to 2 months
Study Arms (1)
TNT-immunity
EXPERIMENTAL1
Interventions
Eligibility Criteria
You may qualify if:
- Pathologically confirmed rectal adenocarcinoma;
- Mid-low rectal cancer, with the lower edge of the tumor located within 12 cm from the anal verge;
- Magnetic resonance imaging (MRI) suggests locally advanced rectal cancer (T3 or T4 and M0), accompanied by at least one of the following risk factors: cT4, N2, lymphovascular invasion, involvement of the mesorectal fascia, or enlarged lateral lymph nodes (short-axis diameter \> 8 mm); patients with potentially resectable disease;
- Polymerase chain reaction (PCR) testing indicates microsatellite stability (MSS) type;
- No prior antitumor therapy, such as chemotherapy, radiotherapy, immunotherapy, or targeted therapy;
- Age between 18 and 75 years;
- ECOG Performance Status (PS) score of 0-1;
- Laboratory test results: WBC ≥ 3.5 × 10\^9/L, Hb ≥ 100 g/L, PLT ≥ 100 × 10\^9/L; normal liver and kidney function;
- Absence of severe comorbidities, and ability to tolerate surgical treatment;
- The patient or their immediate family member voluntarily agrees to participate in this study and provides written informed consent.
You may not qualify if:
- Recurrent rectal cancer;
- Synchronous colorectal cancer;
- Pregnant or lactating patients;
- History of other malignant tumors;
- Previous antitumor therapy, including chemotherapy or radiotherapy;
- Dysfunction of vital organs such as cardiac or pulmonary insufficiency;
- History of autoimmune diseases or immunodeficiency disorders;
- Use of immunosuppressive drugs within the past year;
- Distant metastasis to organs such as the abdominal cavity, pelvis, liver, or lungs;
- Active bleeding;
- Tumor involvement of adjacent structures such as the prostate or sacral organs, making the tumor unresectable;
- Allergy to chemotherapeutic agents, immune checkpoint inhibitors, or cetuximab;
- Psychiatric disorders or lack of capacity for civil conduct, unable to provide informed consent.
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Central Study Contacts
Study Design
- Study Type
- interventional
- Phase
- phase 2
- Allocation
- NA
- Masking
- NONE
- Purpose
- TREATMENT
- Intervention Model
- SINGLE GROUP
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- Principal Investigator
Study Record Dates
First Submitted
September 25, 2025
First Posted
October 9, 2025
Study Start
October 1, 2025
Primary Completion (Estimated)
December 31, 2027
Study Completion (Estimated)
December 31, 2030
Last Updated
October 9, 2025
Record last verified: 2025-09
Data Sharing
- IPD Sharing
- Will not share