| Eligibility |
Inclusion Criteria:
1. =18 years old, both male and female;
2. According to the clinical symptoms, imaging examination, tumor markers and other
auxiliary examinations or biopsy results, it was diagnosed as locally progressive
pancreatic ductal adenocarcinoma.
3. According to NCCN 2020 V1, locally advanced pancreatic cancer is defined as: 1) no
distant metastasis; 2) Arteries: pancreatic head/uncinate process: solid tumors
contact superior mesenteric artery > 180; Solid tumors contact abdominal trunk > 180;
Solid tumor contacts the first jejunum branch of superior mesenteric artery.
Pancreatic body and tail: solid tumors contact superior mesenteric artery or abdominal
trunk > 180; Solid tumor touches abdominal trunk and invades aorta. Vein: The superior
mesenteric vein/portal vein cannot be reconstructed due to tumor invasion or occlusion
(possibly due to tumor or non-tumor embolus).
4. According to the evaluation standard of solid tumor remission (RECIST1.1), there is at
least one measurable lesion in imaging diagnosis;
5. Never received local or systemic anti-tumor treatment before, including surgery,
chemotherapy, radiotherapy, immunization and targeted therapy;
6. ECOG score is 0 ~ 1;
7. Conscious, can cooperate with positioning, positioning, treatment and respiratory
motion control;
8. The main organs function normally, and there are no serious blood, heart, lung, liver,
kidney, bone marrow and other abnormal functions and immunodeficiency diseases.
Laboratory examination meets the following requirements (no blood components or cell
growth factor drugs are allowed to be used within 14 days before the first
medication):
A. hemoglobin = 90g/l; B. absolute neutrophil count = 1.5× 109/l; C. platelet count =
100× 109/l; D. Serum albumin = 28 g/L D. Total bilirubin = 1.5 times the upper limit
of normal value; E.ALT and AST = 2.5 times the upper limit of normal value; F. AKP =
2.5 times the normal value; G. serum creatinine = 1 times the upper limit of normal
value; H. thyroid stimulating hormone (TSH)= 1 times the normal value (if abnormal,
FT3 and FT4 levels should be investigated at the same time; if FT3 and FT4 levels are
normal, they can be enrolled in the group).
9. Non-surgical sterilization or women of childbearing age need to adopt a medically
approved contraceptive measure (such as intrauterine device, contraceptive pill or
condom) during the research treatment period and within 3 months after the end of the
research treatment period, and the patient voluntarily participates and signs the
informed consent form;
10. It is expected that the compliance is good, and the curative effect and adverse
reactions can be followed up according to the requirements of the plan.
Exclusion Criteria:
1. Patients with pancreatic cancer who invaded adjacent organs or distant metastasis were
found by imaging examination;
2. The patient has any active autoimmune disease or history of autoimmune disease (such
as the following, but not limited to: autoimmune hepatitis, interstitial pneumonia,
uveitis, enteritis, hepatitis, hypophysitis, vasculitis, nephritis, hyperthyroidism;
Patients with vitiligo; Asthma has been completely relieved in childhood and can be
included without any intervention after adults; Asthma in which patients need
bronchodilators for medical intervention cannot be included);
3. The patient is using immunosuppressant or systemic hormone therapy to achieve
immunosuppression (dose > 10mg/ day prednisone or other therapeutic hormones), and
continues to use it within 2 weeks before entering the group;
4. It is known that there is a history of central nervous system metastasis or hepatic
encephalopathy;
5. Suffering from hypertension, and can not be well controlled by antihypertensive drug
treatment (systolic blood pressure =140 mmHg or diastolic blood pressure = 90 mmHg);
6. There are clinical symptoms or diseases of the heart that are not well controlled,
such as: (1) heart failure above 1)NYHA2 grade 2; (2) unstable angina pectoris; (3)
myocardial infarction occurred within one year; (4) clinically significant
supraventricular or ventricular arrhythmia needs treatment or intervention;
(5)QTc>450ms (male); QTc>470ms (female);
7. Abnormal coagulation function (INR>2.0, PT>16s), bleeding tendency or receiving
thrombolytic or anticoagulant therapy, allowing preventive use of low-dose aspirin and
low-molecular-weight heparin;
8. In the first 3 months of randomization, there have been bleeding symptoms with
significant clinical significance or clear bleeding tendency, such as daily
cough/hemoptysis of 2.5ml or more, gastrointestinal bleeding, esophageal varices with
bleeding risk, hemorrhagic gastric ulcer or vasculitis, etc. If stool occult blood is
positive in baseline period, it can be re-examined. If it is still positive after
re-examination, gastroscopy is needed. If gastroscopy indicates severe esophageal
varices, it cannot be enrolled in the group (3 months before enrollment.
9. Arterial/venous thrombosis events occurring within the first 6 months, such as
cerebrovascular accidents (including temporary ischemic attack, cerebral hemorrhage,
cerebral infarction), deep venous thrombosis and pulmonary embolism, etc.;
10. Known hereditary or acquired bleeding and thrombotic tendencies (such as blood friend
patients, coagulation dysfunction, thrombocytopenia, etc.);
11. Urine routine prompts urine protein =++and it is confirmed that the amount of urine
protein in 24 hours is > 1.0 g;
12. patients with active infection, fever of unknown origin =38.5? within 7 days before
medication, or white blood cell count > 15× 109/l at baseline; 13 patients with
congenital or acquired immunodeficiency (such as HIV infection);
14.HBV DNA>2000 IU/ml (or 104 copies/ml); Or HCV RNA>103 copies/ml; Or HBsAg+ and anti-HCV
antibody positive patients; 15. The patient has suffered from other malignant tumors in the
past 3 years or at the same time (except the cured skin basal cell carcinoma and cervical
carcinoma in situ); 16. Vaccination of live vaccine within less than 4 weeks before the
study medication or during the study period; 17. There are peripheral neuropathy of grade >
1; 18. Can not cooperate with positioning, positioning, treatment and respiratory motion
control; 19. Suffering from uncontrollable mental illness; 20. It is known that there is a
history of psychotropic drug abuse or drug abuse; According to the researcher's judgment,
the patient has other factors that may affect the research results or lead to the forced
termination of the research, such as alcoholism, drug abuse, other serious diseases
(including mental diseases) that need to be treated together, serious laboratory
examination abnormalities, family or social factors, etc., which will affect the safety of
the patient.
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