A Clinical Study to Compare the Efficacy and Safety of AK105 Plus Anlotinib and Capecitabine/Oxaliplatin (CapeOx) , Anlotinib Plus CapeOx, Bevacizumab Plus CapeOx

Overview

A clinical study to compare the efficacy and safety of AK105 plus anlotinib and Capecitabine/Oxaliplatin (CapeOx) , anlotinib plus CapeOx, bevacizumab plus CapeOx. A total of 120 cases will be enrolled to the group.

Eligibility

Inclusion Criteria:

• The subjects shall volunteer to join in the research and sign the informed consent under the good compliance.
• Aged: 18-75 (calculated on the date of signing informed consent); the physical status of Eastern cooperative oncology group 0~1; expected lifetime≥3 months.
• Unresectable and untreated metastatic colorectal adenocarcinoma patients diagnosed by histopathology Union for International Cancer Control (UICC) ,American Joint Committee on Cance( AJCC) tumor node metastasis staging system for colorectal cancer (8th edition in 2017) is clearly IV stage.
• Subjects who have not received systematic treatment for colorectal cancer before, including chemotherapy, targeted therapy and immunotherapy; Subjects with tumor recurrence or metastasis at least 6 months after the end of previous adjuvant or neoadjuvant chemotherapy.
• It can provide previously stored tumor tissue specimens or biopsy to collect tumor focus tissues for detecting programmed death 1 expression and kirsten rat sarcoma viral oncogene/neuroblastoma rat sarcoma viral oncogene mutation.
• According to RECIST 1.1 criterion, there is at least one measurable lesion. It is required that the selected target lesion has not received local treatment before, or the selected target lesion is located in the previous local treatment area, but it is determined as progressive disease by imaging examination.
• Good organ function (no blood transfusion, no hematopoietic stimulating factor, no infusion of albumin or blood products within 14 days before randomization).
• Female subjects of childbearing age should agree that contraceptive measures (such as abstinence, intrauterine device, contraceptive pills or condoms) must be used during the study and within 6 months after the end of the study; Serum pregnancy test was negative within 7 days before the study was enrolled, and it must be a non-lactating subject; Male subjects should agree that contraception must be used during the study period and within 6 months after the end of the study period.

Exclusion Criteria:

• 1) Combined diseases and medical history:
  1. Other malignant tumors have occurred or are currently suffering at the same time within 3 years. The following conditions can be included: cured cervical carcinoma in situ, non-melanoma skin cancer and superficial bladder tumor [Ta (non-invasive tumor), Tis (carcinoma in situ) and T1 (tumor invasive basement membrane)];
  2. Factors which affecting oral administration of drugs (such as inability to swallow, chronic diarrhoea and ileus, etc.);
  3. There is or tends to be gastrointestinal bleeding or perforation within 4 weeks before inclusion;
  4. Subjects with ulcerative colitis and Crohn's disease; Subjects with active inflammatory bowel disease within 4 weeks before inclusion;
  5. Uncontrollable pleural effusion and ascites requiring repeated drainage, and moderate and above hydropertcardium;
  6. Unmitigated toxic reactions above Common Terminology Criteria for Adverse Events S1 due to any previous treatment, excluding alopecia;
  7. Major surgical treatment, open biopsy or obvious traumatic injury were received within 28 days before inclusion (except tissue biopsy under gastrointestinal endoscope);
  8. Imaging(CT or MRI) showed that the tumor invaded large blood vessels or had unclear boundary with blood vessels;
  9. Subjects with hematemesis and hematochezia symptoms within 3 months before screening, and the daily bleeding volume is ≥ 2. 5 ml, or any bleeding event ≥ Common Terminology Criteria for Adverse Events S3, or subjects with any bleeding signs or medical history judged by researchers to be unsuitable for inclusion regardless of severity;
  10. There are unhealed wounds, ulcers or fractures;
  11. Arteriovenous thrombosis occurred within 6 months, such as cerebrovascular accident (including temporary ischemic attack, cerebral hemorrhage, cerebral infarction), deep vein thrombosis and pulmonary embolism, etc;
  12. Subjects who have a history of psychotropic drug abuse and can't quit;
  13. Subjects with any severe and/or uncontrolled diseases, including:

        Uncontrolled hypertension (systolic blood pressure ≥ 150 mmHg or diastolic blood pressure ≥
        100 mmHg after standard antihypertensive treatment); Suffering from unstable angina
        pectoris/ S2 or over cardiogenic chest pain; Myocardial infarction occurred within 12
        months before randomization; S1or over heart failure (New York Heart Association (NYHA)
        grade); Restrictive cardiomyopathy; S2 or over atrioventricular block, arrhythmia that
        cannot be stably controlled by drugs [including QTc ≥ 450 ms (male) and QTc ≥ 470 ms
        (female)], and arrhythmia that may have potential influence on experimental treatment;
        Active infection (≥ Common Terminology Criteria for Adverse Events S2 infection);
        Decompensated cirrhosis, active hepatitis ; ( Active hepatitis (hepatitis B reference:
        HBsAg positive, and HBV DNA positive (> 2500 copies/ml or > 500IU/ml); Hepatitis C
        reference: HCV antibody positive, and HCV virus titer detection value exceeds the upper
        limit of normal value); Note: Subjects with positive hepatitis B surface antigen or core
        antibody and hepatitis C patients who meet the entry conditions need continuous antiviral
        treatment to prevent virus activation. ) Subjects with renal failure requiring hemodialysis
        or peritoneal dialysis; Have a history of immunodeficiency, including HIV positive or
        suffering from other acquired and congenital immunodeficiency diseases, or have a history
        of organ transplantation; Diabetes mellitus is poorly controlled (fasting blood glucose
        (FBG) > 10mmol/L) Urine routine indicates that urine protein is ≥ + +, and it is confirmed
        that 24-hour urine protein quantity is > 1.0 g; Subjects who have a definite history of
        neurological or mental disorders, including epilepsy or dementia, and need treatment.
          -  2) Tumor-related symptoms and treatment:
               1. Have received surgery (except previous diagnostic biopsy), radiotherapy,
                  chemotherapy or other anti-cancer therapy within 4 weeks before inclusion
                  (wahsout period is calculated from the end of the last treatment); Note: Those
                  who have received local radiotherapy in the past can be enrolled if the following
                  conditions are met: the end of radiotherapy is more than 4 weeks from the start
                  of study treatment (brain radiotherapy is more than 2 weeks), and the target
                  lesions selected in this study are not in the radiotherapy area; Or the target
                  lesion is located in the radiotherapy area, but the progress has been confirmed;
               2. Within 2 weeks before joining the group, subjects who received ready-for-use
                  traditional Chinese medicine (including Compound Mylabris Capsule, Kang'ai
                  Injection, Kanglaite Capsule/Injection, Aidi Injection, Brucea javanica Oil
                  Injection/Capsule, Xiaoaiping Tablet/Injection, Cinobufagin Capsule, etc.) with
                  anti-tumor indications specified in National Medical Products Administration
                  approved drug instructions;
               3. Subjects who have previously received anti-PD-1 or anti-PD-L1/PD-L2 preparations
                  or other treatments acting on T cell co-stimulation targets or checkpoints;
               4. Previous postoperative adjuvant therapy containing anti-vascular or
                  anti-epidermal growth factor receptor targeted drugs (including but not limited
                  to bevacizumab, cetuximab, panitumumab, aflibercept, regorafenib, etc.)
               5. Central nervous system metastasis with symptoms or symptoms control time less
                  than 2 months;
          -  3) Research therapy related:
               1. Vaccination history of live attenuated vaccine within 28 days before enrollment
                  or plan to vaccinate live attenuated vaccine during the study period;
               2. Subjects who are known to be allergic to research drugs or excipients, or
                  allergic to similar drugs;
               3. Active autoimmune diseases requiring systemic treatment (such as the use of
                  disease-relieving drugs, corticosteroids or immunosuppressants) occurred within 2
                  years before enrollment. Alternative therapies (such as thyroxine, insulin or
                  physiological corticosteroids for adrenal or pituitary insufficiency) are not
                  considered systemic treatment;
               4. Diagnosed as immunodeficiency or receiving systemic glucocorticoid therapy or any
                  other form of immunosuppressive therapy (dose > 10mg/day prednisone or other
                  equivalent hormone), and continuing to be used within 2 weeks after the first
                  administration;
          -  Participated in clinical trials of other anti-tumor drugs within 4 weeks before
             joining the group (washout period was calculated from the end of the last treatment);
          -  According to the researcher's judgment, there are accompanying diseases that seriously
             endanger the safety of the subjects or affect the completion of the study, or there
             are other reasons why the subjects are not suitable for enrollment.