Locally Advanced Rectal Cancer Clinical Trial
— TIMENT-ROfficial title:
The Therapeutic and Prognostic Implications of Tumor Immune Microenvironment in The Neoadjuvant Immunotherapy Combined With Chemoradiotherapy for Rectal Cancer
This is an open-label, prospective phase II clinical trial to evaluate the therapeutic and prognostic implications of tumor immune microenvironment in the neoadjuvant immunotherapy combined with chemoradiotherapy for patients with rectal cancer. A total of 100 patients will be enrolled in this trial. The primary end point is the rate of pathological complete response (pCR). The long-term prognosis and adverse effects will also be evaluated and analyzed.
Status | Not yet recruiting |
Enrollment | 100 |
Est. completion date | December 1, 2029 |
Est. primary completion date | July 1, 2024 |
Accepts healthy volunteers | No |
Gender | All |
Age group | 18 Years to 75 Years |
Eligibility | Inclusion Criteria: 1. Age = 18 years and =75 years on the day of signing informed consent. 2. Eastern Cooperative Oncology Group (ECOG) performance status of 0-2. 3. Histologically proven rectal adenocarcinoma. 4. <12 cm from anal verge. 5. Clinical stage of T3/T4 or N positive and M0 6. No previous chemotherapy, radiotherapy, immunotherapy or surgical treatment 7. No immune system disease (e. g. systemic lupus erythematosus (SLE), rheumatoid arthritis (RA), systemic vasculitis, scleroderma, mixed connective tissue disease, dermatomyositis (DM), hyperthyroidism, hypothyroidism, ulcerative colitis (UC), autoimmune hemolytic anemia (AIHA) or human immunodeficiency virus (HIV) infection. 8. Adequate hepatic and renal function to chemoradiotherapy, immunotherapy and surgery. 9. Willing and able to provide written informed consent. Exclusion Criteria: 1. Allergic to any component of chemotherapy or immunotherapy; 2. Patients with multiple primary colorectal cancer; 3. Other malignant tumors within 5 years, except for adequately treated cervical carcinoma in situ or cutaneous basal cell carcinoma, or basically controlled localized prostate cancer or surgically excised ductal carcinoma in situ of breast; 4. Patients with intestinal obstruction, intestinal perforation, intestinal bleeding, or other conditions requiring emergency surgical resection; 5. Prior or planed organ/bone marrow transplant 6. Patients who receive systemic steroid therapy or immunosuppressive agents within 30 days before enrollment in the study; 7. Pregnant or lactating women 8. Patients with a history of severe mental illness or being unable to comply with the research protocols. 9. Patients who have contraindications to chemoradiotherapy, immunotherapy or surgery. 10. Patients who have any other conditions that investigator judges unsuitable to participate. |
Country | Name | City | State |
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n/a |
Lead Sponsor | Collaborator |
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Peking Union Medical College Hospital |
Type | Measure | Description | Time frame | Safety issue |
---|---|---|---|---|
Primary | Pathological complete response (pCR) rates | Proportion of patients who achieve a pathological complete response following treatment | 1-2 weeks after surgery | |
Secondary | Major pathological response (MPR) rates | The proportion of patients experiencing a major pathological response to neoadjuvant treatment. | 1-2 weeks after surgery | |
Secondary | Pathological tumor regression grade (TRG) | TRG is evaluated according to the AJCC system. TRG0-1 is defined as good response, TRG2 as moderate response, and TRG3 as poor response. | 1-2 weeks after surgery | |
Secondary | Rate of tumor down-staging | The proportion of patients experiencing tumor down-staging will be assessed by pathology. | 1-2 weeks after surgery | |
Secondary | Lymphocytes infiltration changes after treatment | The categories, number and distribution of lymphocytes infiltrated in tumor and tumor stroma are measured by Multiplex immunofluorescence assay. | 2 weeks before treatment and 1-2 weeks after surgery | |
Secondary | The expression of immune-related pathways | The expression of immune-related pathways is measured by RNAseq. | 2 weeks before treatment and 1-2 weeks after surgery | |
Secondary | Rectal MRI defined tumor regression | Proportion of patients achieving rectal MRI-confirmed near or complete tumor regression. | Baseline and 1 week before surgery | |
Secondary | Rectal MRI defined tumor down-staging | Proportion of patients achieving rectal MRI-confirmed down-staging. | Baseline and 1 week before surgery | |
Secondary | Rectal MRI defined tumor volume change | The change of patients' tumor volume will be confirmed by rectal MRI. | Baseline and 1 week before surgery | |
Secondary | Local recurrence(LR) rate | Presence of adenocarcinoma within the rectal wall or within the mesorectum confirmed by pathology | 3, 5 years | |
Secondary | Disease free survival (DFS) | The three-year and five-year disease-free survival of patients. | 3, 5 years | |
Secondary | Overall survival (OS) | The three-year and five-year overall survival of patients. | 3, 5 years | |
Secondary | Surgical complications | Rate of surgical complications, such as intraoperative hemorrhage, anastomotic leakage, intestinal obstruction, etc, which will also be assessed according to "Clavien-Dindo Classification of surgical complications". | The surgical complications are assessed up to 5 years from the surgery | |
Secondary | R0 resection rate | Rate of complete tumor removal with negative microscopically resection margin. | Within two weeks after surgery | |
Secondary | Rate of sphincter-sparing surgery | Rate of sphincter-sparing surgery if surgery is performed. | Within two weeks after surgery | |
Secondary | Rate of adverse event | Rate of adverse events will be assessed according to National Cancer Institution Common Terminology Criteria of Adverse Events (NCI-CTCAE) v.4.02. Adverse events of this trial will include immune-related adverse events, chemo- and radiotherapy related adverse events, and combined treatment-related adverse events. | From date of randomization until the date of death from any cause, assessed up to 5 years | |
Secondary | Patient reported outcome: Quality of life according to questionnaire European Organization for Research and Treatment of Cancer Quality of Life Core Questionnaire 30 (EORTC QLQ-C30) (v 3.0) | Score values from 1 (not at all) to 4 (very much) respectively from 1 (very poor) to 7 (excellent). Score outcome depends on score type. | Baseline and months 3, 6, 12, 24, 36, 60 | |
Secondary | Patient reported outcome: Quality of life according to questionnaire European Organization for Research and Treatment of Cancer Quality of Life Questionnaire-Colorectal Cancer 29 (EORTC QLQ-CR29) | Score values from 1 (not at all) to 4 (very much). Score outcome depends on score type. | Baseline and months 3, 6, 12, 24, 36, 60 | |
Secondary | Patient reported outcome: Functional outcome according to Wexner score | Five score values from "never" to "1 per day or more often". The more often the worse outcome. | Baseline and months 3, 6, 12, 24, 36, 60 |
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