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Neoadjuvant Cadonilimab Plus Chemotherapy Following Short-Course Radiotherapy in Locally Advanced Rectal Cancer (NeoCaCRT)

Primary Purpose

Locally Advanced Rectal Carcinoma

Status
Recruiting
Phase
Phase 2
Locations
China
Study Type
Interventional
Intervention
Cadonilimab Injection
Short-course radiotherapy
Consolidation chemotherapy
Sponsored by
Shenzhen People's Hospital
About
Eligibility
Locations
Arms
Outcomes
Full info

About this trial

This is an interventional treatment trial for Locally Advanced Rectal Carcinoma focused on measuring Anti-CTLA-4/PD-1 bispecific antibody, Neoadjuvant chemotherapy, Rectal cancer, Short-course radiotherapy

Eligibility Criteria

18 Years - 79 Years (Adult, Older Adult)All SexesDoes not accept healthy volunteers

Inclusion Criteria: Age ≥18 yeas and ≤79 years. The gender is not limited. Histopathology confirmed the diagnosis of rectal adenocarcinoma. Patients with rectal cancer based on endoscopic ultrasound and / or pelvic MRI contrast + contrast, chest CT, head MRI or CT + contrast, or positron emission tomography / computed tomography (PET / CT), staging criteria per American Joint Committee on Cancer (AJCC) 8th edition cancer stage, cT 3-T4 / N + M0. At least 20 unstained sections of formalin-fixed paraffin-embedded tumor tissue sections, or fresh tumor tissue, can be provided for genomic and proteomic testing. The Eastern Cooperative Oncology Group Performance status (ECOG PS) 0- 1. Adequate bone marrow and organ function meets the following criteria: Neutrophil count (ANC)≥1.5×l09/L Platelet (PLT) ≥80×109/L Hemoglobin (Hb) level ≥90 g/L Total bilirubin level≤1.5×ULN Alanine aminotransferase (ALT) level≤3×ULN Aspartate aminotransferase (AST) level ≤3×ULN International normalized value (INR) or prothrombin time (PT) or activated partial thromboplastin time (aPTT) ≤1.5×ULN Serum creatinine (Cr) level ≤1.5×ULN Creatinine clearance #50 ml/min (Calculated according to the Cockcroft-Gault formula) Exclusion Criteria: Previous history of severe hypersensitivity to other monoclonal antibodies or any component of Cadonilimab. Preoperative pathology was diagnosed as squamous cell carcinoma or neuroendocrine tumor Within 5 years before enrollment for malignancies other than colorectal cancer with negligible risk of metastasis or death (e. g., expected 5-year OS> 90%) and expected radical results after treatment (e. g., adequately treated cervical carcinoma in situ, basal or squamous cell skin carcinoma, localized prostate carcinoma for curative intent, ductal carcinoma in situ surgically treated with curative intent). Previous treatment against the PD-1 receptor or its ligand PD-L1 or the cytotoxic T lymphocyte-associated protein-4 (CTLA-4) receptor. History of autoimmune diseases, including but not limited to myasthenia gravis, myositis, autoimmune hepatitis, series, systemic lupus erythematosus, rheumatoid arthritis, inflammatory bowel disease, vascular thrombosis related to antiphospholipid syndrome, Wegener's granulomatosis, Sjogren's syndrome, Guillain-Barre syndrome, multiple sclerosis, vasculitis, vasculitis, or glomerulonephritis; patients with autoimmune-related hypothyroidism were eligible for stable-dose thyroid hormone replacement therapy; patients with type 1 diabetes under control after a stable insulin regimen were eligible to participate in this study; Usage of systemic immune activation drugs (including but not limited to interferon or Interleukin-2) within 4 weeks prior to enrollment or within 5 half-lives of the drug (whichever is shorter); Usage of systemic corticosteroids (> 10 mg/d of prednisone equivalent) or other systemic immunosuppressive agents (including but not limited to prednisone, prednisone, dexamethasone, cyclophosphamide, azathioprine, methotrexate, thalidomide, and anti-tumor necrosis factor agents [anti-TNF]) within 2 weeks prior to enrollment. Local, ocular, intra-articular, nasal, and inhaled corticosteroids are permitted; Patients requiring baseline and subsequent MRI tumor evaluation with previous allergic reactions to intravenous contrast agents may use preventive steroids; Allowing the use of inhaled corticosteroids for chronic obstructive pulmonary disease, corticosteroid hydrochloride (e. g., fluorohydrocortisone) in patients with orthostatic hypotension, and low-dose corticosteroid maintenance for adrenal cortical insufficiency. Patients with previous allogeneic bone marrow transplantation or previous solid organ transplantation. Idiopathic pulmonary fibrosis, drug-induced pneumonia, mechanical pneumonia (i. e. bronchiolitis obliterans), history of idiopathic pneumonia or chest CT scan at screening showed evidence of active pneumonia. Any live vaccine (e. g., vaccine against infectious diseases, such as influenza vaccine, varicella vaccine, etc.) within 4 weeks (28 days) before enrollment.13 Active infections, including tuberculosis (TB) (clinical diagnosis including clinical history, physical examination and imaging findings, and TB tests performed per local medical practice), hepatitis B {known HBV surface antigen (HBsAg) positive and HBVDNA 1000 cps / ml}, hepatitis C or human immunodeficiency virus (HIV antibody positive). Patients with prior or cured HBV infection (defined as hepatitis B core antibody positive and HBsAg negative) were to be eligible to participate in the study only if HBVDNA was negative (HBVDNA˂ 1000 cps / ml); Patients with positive hepatitis C (HCV) antibody are not eligible for the study only if polymerase chain reaction shows negative HCVRNA; Clinically meaningful basic medicine, disease (e. g., dyspnea, pneumonia, pancreatitis, poorly controlled, poorly controlled diabetes, infection active or poorly controlled, or drug or alcohol abuse). Presence of severe neurological or psychiatric disorders, including dementia and epileptic seizures. The NCI-CTCAE grade 2 peripheral neuropathy. Female patients during pregnancy or lactation. Chronic bowel disease or short bowel syndrome. Dihydropyrimidine dehydrogenase (DPD) enzyme deficiency. Major cardiovascular diseases, such as New York Heart Association heart disease (grade II or higher), myocardial infarction within 3 months before randomization, unstable arrhythmia, or unstable angina pectoris. Patients with known coronary artery disease, congestive heart failure not meeting the above criteria, or left ventricular ejection fraction <50% must have an optimized stable medical regimen as determined by the treating physician, consulting a cardiologist if required.

Sites / Locations

  • Shenzhen People's HospitalRecruiting

Arms of the Study

Arm 1

Arm Type

Experimental

Arm Label

Cadonilimab group

Arm Description

Cadonilimab is administrated with 6mg/kg and repeated every 2 weeks.

Outcomes

Primary Outcome Measures

Pathological Complete Response Rate
The proportion of patients with no tumor cells in the postoperative specimens

Secondary Outcome Measures

Disease Free Survival Time from the date of treatment administration until the date of the first documented event of: disease recurrence Disease Free Survival
Time from the date of treatment administration until the date of the first documented event of: disease recurrence following surgery (preferably biopsy proven), or death - whichever occurs first
Overall Survival
Overall survival is defined as time from the date of treatment administration until the date of death from any cause.
Objective Response Rate
The rate of participants that achieve either a complete response (CR) or a partial response (PR).
Clinical Complete Response
Digital examination of rectum and multi-point puncture of colonoscopy indicate no tumor, and ultrasound colonoscopy and tumor markers and MRI are normal, which is considered as clinical complete response.
Major Pathological Response Rate (MPR)
The proportion of cancer cells in the resected tumors and lymph nodes is less than 10%.
Number of participants with treatment-related adverse events (TRAE) as assessed by CTCAE v5.0
Number of patients with AE, TRAE, immune-related AE (irAE), serious adverse event (SAE) assessed by CTCAE v5.0, change from baseline in liver function, kidney function, peripheral blood counts, etc. at 3 months

Full Information

First Posted
February 9, 2023
Last Updated
June 28, 2023
Sponsor
Shenzhen People's Hospital
Collaborators
Sixth Affiliated Hospital, Sun Yat-sen University, The University of Hong Kong-Shenzhen Hospital
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1. Study Identification

Unique Protocol Identification Number
NCT05792735
Brief Title
Neoadjuvant Cadonilimab Plus Chemotherapy Following Short-Course Radiotherapy in Locally Advanced Rectal Cancer
Acronym
NeoCaCRT
Official Title
A Prospective, Open-Label, Single-Arm and Multicentre Phase II Study to Explore the Efficacy and Safety of Neoadjuvant Cadonilimab Plus Chemotherapy Following Short-Course Radiotherapy in Middle and Lower Locally Advanced Rectal Cancer
Study Type
Interventional

2. Study Status

Record Verification Date
June 2023
Overall Recruitment Status
Recruiting
Study Start Date
April 11, 2023 (Actual)
Primary Completion Date
December 31, 2025 (Anticipated)
Study Completion Date
December 31, 2026 (Anticipated)

3. Sponsor/Collaborators

Responsible Party, by Official Title
Principal Investigator
Name of the Sponsor
Shenzhen People's Hospital
Collaborators
Sixth Affiliated Hospital, Sun Yat-sen University, The University of Hong Kong-Shenzhen Hospital

4. Oversight

Studies a U.S. FDA-regulated Drug Product
No
Studies a U.S. FDA-regulated Device Product
No
Product Manufactured in and Exported from the U.S.
No

5. Study Description

Brief Summary
The goal of this clinical trial is to test the efficacy and safety in patients with locally advanced middle and lower rectal cancer. The main questions it aims to answer are:• Whether Cadonilimab combined with chemotherapy following short-course radiation can improve pathological complete response(pCR) rate? •Are the toxicities of the combination therapy manageable? Participants will be given radiation of 5 Gy for 5 days and then neoadjuvant Cadonilimab combined with modified fluorouracil, leucovorin, and oxaliplatin (mFOLFOX6) for 6 cycles. Without progressed disease, total mesorectal excision (TME) or transanal local excision will be performed. If clinical complete response was received, watch and wait strategy is one of choices. Adjuvant Cadonilimab plus mFOLFOX6 for another 6 cycles could be suggested for non-pCR participants,while surveillance is also suitable for pCR ones.
Detailed Description
Long-term synchronous chemoradiation (CRT) with sequential TME is the treatment recommended by current guidelines for locally advanced rectal cancer (LARC). The latest STELLAR study showed that preoperative short-course radiotherapy (SCRT) combined with preoperative chemotherapy is safe and effective and can be used as an alternative to conventional CRT in LARC [1]. In recent years, new therapies blocking immune checkpoints (cytotoxic T lymphocyte-associated molecular protein 4 (CTLA-4), programmed cell death 1 (PD1) and programmed cell death ligand 1 (PD-L1)) have achieved landmark achievements in the field of cancer therapy. Several clinical trials are evaluating the efficacy of a combination of RT and immune checkpoint inhibitors (ICIs) in rectal cancer (NCT02948348, NCT04124601, NCT04558684). The results of the study suggest that radioimmunotherapy is safe and effective in rectal cancer. A number of studies have shown that combined PD-1 and CTLA-4 blockade is associated with a higher response rate whereas more toxicities in multiple tumor types. Cadonilimab is a tetrameric PD-1/CTLA-4 bispecific antibody, based on the Akeso Tetrabody platform. It introduces novel T cell targeting mechanisms of action that may provide an improved therapeutic index and a favorable toxicity profile compared to PD-1 and CTLA-4 combination therapy. The study of SCRT combined with Cadonilimab and chemotherapy in middle and lower LARC has not been reported at home or abroad. Therefore, this study plans to recruit 27 patients with middle and lower LARC to explore the efficacy and safety of radiation of 5 Gy for 5 days followed by Cadonilimab 6mg/kg plus mFOLFOX6 (oxaliplatin 85 mg/m2, leucovorin 400 mg/m2, 5-fluorouracil bolus 400 mg/m2 on day 1, and 5-fluorouracil infusion 2400 mg/m2 for 48 h) every 2 weeks for total 6 cycles preoperatively. The primary endpoint is the pathological complete response (pCR) after surgery. The secondary endpoints consist of a clinical complete response (cCR), major pathological response (MPR), objective response rate (ORR), recurrence-free survival (RFS), overall survival (OS) and safety. Clinical response was evaluated by endoscopy, digital rectal examination and pelvic MRI. Safety was analyzed in all patients who receive at least one dose of treatment. The exploratory endpoint covers the quality of life. After surgery, non-pCR patients receive adjuvant Cadonilimab combined with mFOLFOX6 for 6 cycles while pCR ones have two options: adjuvant treatment which is the same as the neoadjuvant regimen or observation. As for cCR patients, TME or transanal local excision is one of options while the watch and wait (W&W) strategy can also be considered especially for ultra-low rectal cancer.

6. Conditions and Keywords

Primary Disease or Condition Being Studied in the Trial, or the Focus of the Study
Locally Advanced Rectal Carcinoma
Keywords
Anti-CTLA-4/PD-1 bispecific antibody, Neoadjuvant chemotherapy, Rectal cancer, Short-course radiotherapy

7. Study Design

Primary Purpose
Treatment
Study Phase
Phase 2
Interventional Study Model
Single Group Assignment
Masking
None (Open Label)
Allocation
N/A
Enrollment
27 (Anticipated)

8. Arms, Groups, and Interventions

Arm Title
Cadonilimab group
Arm Type
Experimental
Arm Description
Cadonilimab is administrated with 6mg/kg and repeated every 2 weeks.
Intervention Type
Drug
Intervention Name(s)
Cadonilimab Injection
Other Intervention Name(s)
AK104
Intervention Description
Cadonilimab, an anti-CTLA-4/PD-1 bispecific antibody, at a dose of 6mg/kg is given in combination with chemotherapy every 2 weeks preoperatively and postoperatively.
Intervention Type
Radiation
Intervention Name(s)
Short-course radiotherapy
Other Intervention Name(s)
SCRT
Intervention Description
Preoperative short-course radiotherapy (5x5 Gy)
Intervention Type
Drug
Intervention Name(s)
Consolidation chemotherapy
Other Intervention Name(s)
mFOLFOX6
Intervention Description
Oxaliplatin 85 mg/m2, leucovorin 400 mg/m2, 5-fluorouracil bolus 400 mg/m2 on day 1, and 5-fluorouracil infusion 2400 mg/m2 for 48 h) every 2 weeks for total 6 cycles preoperatively and postoperatively.
Primary Outcome Measure Information:
Title
Pathological Complete Response Rate
Description
The proportion of patients with no tumor cells in the postoperative specimens
Time Frame
Up to 6 months
Secondary Outcome Measure Information:
Title
Disease Free Survival Time from the date of treatment administration until the date of the first documented event of: disease recurrence Disease Free Survival
Description
Time from the date of treatment administration until the date of the first documented event of: disease recurrence following surgery (preferably biopsy proven), or death - whichever occurs first
Time Frame
Up to 5 years
Title
Overall Survival
Description
Overall survival is defined as time from the date of treatment administration until the date of death from any cause.
Time Frame
Up to 5 years
Title
Objective Response Rate
Description
The rate of participants that achieve either a complete response (CR) or a partial response (PR).
Time Frame
Up to 6 months
Title
Clinical Complete Response
Description
Digital examination of rectum and multi-point puncture of colonoscopy indicate no tumor, and ultrasound colonoscopy and tumor markers and MRI are normal, which is considered as clinical complete response.
Time Frame
Up to 6 months
Title
Major Pathological Response Rate (MPR)
Description
The proportion of cancer cells in the resected tumors and lymph nodes is less than 10%.
Time Frame
Up to 6 months
Title
Number of participants with treatment-related adverse events (TRAE) as assessed by CTCAE v5.0
Description
Number of patients with AE, TRAE, immune-related AE (irAE), serious adverse event (SAE) assessed by CTCAE v5.0, change from baseline in liver function, kidney function, peripheral blood counts, etc. at 3 months
Time Frame
Up to 6 months
Other Pre-specified Outcome Measures:
Title
Quality of life (QoL)
Description
Quality of life will be evaluated using the European O-rganization for Reasearch and Treatment of Cancer Quality of Life Questionnaire-C30(EORTC QLQ-C30) (range 0-100). It evaluates the quality of life from 30 aspects, including appetite, mental status, sleep quality, fatigue, etc. The higher scores mean a better quality of life.
Time Frame
From date of randomization until the date of death from any cause, assessed up to 10 years

10. Eligibility

Sex
All
Minimum Age & Unit of Time
18 Years
Maximum Age & Unit of Time
79 Years
Accepts Healthy Volunteers
No
Eligibility Criteria
Inclusion Criteria: Age ≥18 yeas and ≤79 years. The gender is not limited. Histopathology confirmed the diagnosis of rectal adenocarcinoma. Patients with rectal cancer based on endoscopic ultrasound and / or pelvic MRI contrast + contrast, chest CT, head MRI or CT + contrast, or positron emission tomography / computed tomography (PET / CT), staging criteria per American Joint Committee on Cancer (AJCC) 8th edition cancer stage, cT 3-T4 / N + M0. At least 20 unstained sections of formalin-fixed paraffin-embedded tumor tissue sections, or fresh tumor tissue, can be provided for genomic and proteomic testing. The Eastern Cooperative Oncology Group Performance status (ECOG PS) 0- 1. Adequate bone marrow and organ function meets the following criteria: Neutrophil count (ANC)≥1.5×l09/L Platelet (PLT) ≥80×109/L Hemoglobin (Hb) level ≥90 g/L Total bilirubin level≤1.5×ULN Alanine aminotransferase (ALT) level≤3×ULN Aspartate aminotransferase (AST) level ≤3×ULN International normalized value (INR) or prothrombin time (PT) or activated partial thromboplastin time (aPTT) ≤1.5×ULN Serum creatinine (Cr) level ≤1.5×ULN Creatinine clearance #50 ml/min (Calculated according to the Cockcroft-Gault formula) Exclusion Criteria: Previous history of severe hypersensitivity to other monoclonal antibodies or any component of Cadonilimab. Preoperative pathology was diagnosed as squamous cell carcinoma or neuroendocrine tumor Within 5 years before enrollment for malignancies other than colorectal cancer with negligible risk of metastasis or death (e. g., expected 5-year OS> 90%) and expected radical results after treatment (e. g., adequately treated cervical carcinoma in situ, basal or squamous cell skin carcinoma, localized prostate carcinoma for curative intent, ductal carcinoma in situ surgically treated with curative intent). Previous treatment against the PD-1 receptor or its ligand PD-L1 or the cytotoxic T lymphocyte-associated protein-4 (CTLA-4) receptor. History of autoimmune diseases, including but not limited to myasthenia gravis, myositis, autoimmune hepatitis, series, systemic lupus erythematosus, rheumatoid arthritis, inflammatory bowel disease, vascular thrombosis related to antiphospholipid syndrome, Wegener's granulomatosis, Sjogren's syndrome, Guillain-Barre syndrome, multiple sclerosis, vasculitis, vasculitis, or glomerulonephritis; patients with autoimmune-related hypothyroidism were eligible for stable-dose thyroid hormone replacement therapy; patients with type 1 diabetes under control after a stable insulin regimen were eligible to participate in this study; Usage of systemic immune activation drugs (including but not limited to interferon or Interleukin-2) within 4 weeks prior to enrollment or within 5 half-lives of the drug (whichever is shorter); Usage of systemic corticosteroids (> 10 mg/d of prednisone equivalent) or other systemic immunosuppressive agents (including but not limited to prednisone, prednisone, dexamethasone, cyclophosphamide, azathioprine, methotrexate, thalidomide, and anti-tumor necrosis factor agents [anti-TNF]) within 2 weeks prior to enrollment. Local, ocular, intra-articular, nasal, and inhaled corticosteroids are permitted; Patients requiring baseline and subsequent MRI tumor evaluation with previous allergic reactions to intravenous contrast agents may use preventive steroids; Allowing the use of inhaled corticosteroids for chronic obstructive pulmonary disease, corticosteroid hydrochloride (e. g., fluorohydrocortisone) in patients with orthostatic hypotension, and low-dose corticosteroid maintenance for adrenal cortical insufficiency. Patients with previous allogeneic bone marrow transplantation or previous solid organ transplantation. Idiopathic pulmonary fibrosis, drug-induced pneumonia, mechanical pneumonia (i. e. bronchiolitis obliterans), history of idiopathic pneumonia or chest CT scan at screening showed evidence of active pneumonia. Any live vaccine (e. g., vaccine against infectious diseases, such as influenza vaccine, varicella vaccine, etc.) within 4 weeks (28 days) before enrollment.13 Active infections, including tuberculosis (TB) (clinical diagnosis including clinical history, physical examination and imaging findings, and TB tests performed per local medical practice), hepatitis B {known HBV surface antigen (HBsAg) positive and HBVDNA 1000 cps / ml}, hepatitis C or human immunodeficiency virus (HIV antibody positive). Patients with prior or cured HBV infection (defined as hepatitis B core antibody positive and HBsAg negative) were to be eligible to participate in the study only if HBVDNA was negative (HBVDNA˂ 1000 cps / ml); Patients with positive hepatitis C (HCV) antibody are not eligible for the study only if polymerase chain reaction shows negative HCVRNA; Clinically meaningful basic medicine, disease (e. g., dyspnea, pneumonia, pancreatitis, poorly controlled, poorly controlled diabetes, infection active or poorly controlled, or drug or alcohol abuse). Presence of severe neurological or psychiatric disorders, including dementia and epileptic seizures. The NCI-CTCAE grade 2 peripheral neuropathy. Female patients during pregnancy or lactation. Chronic bowel disease or short bowel syndrome. Dihydropyrimidine dehydrogenase (DPD) enzyme deficiency. Major cardiovascular diseases, such as New York Heart Association heart disease (grade II or higher), myocardial infarction within 3 months before randomization, unstable arrhythmia, or unstable angina pectoris. Patients with known coronary artery disease, congestive heart failure not meeting the above criteria, or left ventricular ejection fraction <50% must have an optimized stable medical regimen as determined by the treating physician, consulting a cardiologist if required.
Central Contact Person:
First Name & Middle Initial & Last Name or Official Title & Degree
Wan He, PhD
Phone
+8618823719462
Email
hewanshenzhen@hotmail.com
First Name & Middle Initial & Last Name or Official Title & Degree
Guixiang Liao, PhD
Phone
+8615914153267
Email
liaoguixiang@163.com
Facility Information:
Facility Name
Shenzhen People's Hospital
City
Shenzhen
State/Province
Guang Dong
ZIP/Postal Code
518020
Country
China
Individual Site Status
Recruiting
Facility Contact:
First Name & Middle Initial & Last Name & Degree
Wan He, PhD,MD
Phone
+8675522948111
Ext
5075
Email
hewanshenzhen@hotmail.com
First Name & Middle Initial & Last Name & Degree
Guixiang Liao, PhD,MD
Phone
+8675522948111
Ext
5168
Email
liaoguixiang@163.com

12. IPD Sharing Statement

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Neoadjuvant Cadonilimab Plus Chemotherapy Following Short-Course Radiotherapy in Locally Advanced Rectal Cancer

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