Proton and Carbon Ion Radiotherapy for Locally Advanced Pancreatic Cancer
Proton and Carbon Ion Radiotherapy for Locally Advanced Pancreatic Cancer
The aim of this study is to evaluate the toxicity and tolerance of proton and carbon ion
 radiotherapy (PCRT) for locally advanced pancreatic carcinoma (LAPC)
The proton dose of 50.4GyE in 28 fractions was delivered to clinical target volume (CTV), and
 carbon ion as a boost dose to gross tumor volume (GTV) escalated from 12GyE to 18GyE with
 3GyE per fraction in 3 dose levels. The dose limiting toxicity (DLT) was defined as CTCAE
 grade 3 or higher of non-hematological toxicity (G3). The acute and late toxicities, overall
 survival (OS), progression-free survival (PFS), local progression-free survival (LPFS) and
 distant metastasis-free survival (DMFS) were the endpoints.
Inclusion Criteria:

 1. The histologically or cytologically confirmed, or the clinically diagnosed by clinical
 diagnosis criterion proposed by Pancreatic Cancer Committee of Chinese Anti-Cancer
 Association [15], which was based on evidences of (1). Typical symptoms of abdominal
 and/or back pain; (2). CA19-9 increased over the normal up limit; (3). A pancreatic
 mass shown on CT or MRI; and (4). SUV of PET-CT in mass increased compared to that in
 normal pancreas;

 2. Unresectable LAPC defined by the criteria of (NCCN) guidelines (Version 1. 2013), or
 refusal to surgery;

 3. Gastrointestinal tract (GI) not invaded;

 4. ECOG Performance Status 0-1 within 30 days prior to registration;

 5. Age of ≥ 18 years old;

 6. Enough hematological function (white blood cell count ≥ 3.0×109/L; platelets
 ≥50×109/L; hemoglobin ≥ 90 g/L);

 7. Enough liver and kidney functions (creatinine <110gmol/L; urea nitrogen <7.1mmol/L;
 bilirubin < 1.5 x ULN, ALT and AST ≤ 2.5 x ULN);

 8. No evidence of distant metastases, based upon PET, CT, or MRI images of the chest,
 abdomen and pelvis within 30 days prior to registration;

 9. Informed consent form obtained.

 Exclusion Criteria:

 1. No pathological evidence of malignant tumor;

 2. ECOG>=2；

 3. Liver, kidney and bone marrow function are poor and not adequate for treatment;

 4. Side effect of previous treatment is not covered yet, eg. The interval between TACE
 and other anti-tumor therapy is less than one month;

 5. Prior radiation therapy to the abdomen or radioactive particle implantation;

 6. cardiac pacemaker or other metal implantation whose function may be disturbed by high
 energy beam or which affect the dose in target volume;

 7. Dose constrain of normal liver, digested system and other OAR could not reach the
 expecting safe dose constrain;

 8. The patient could not get benefit from proton or heavy ion radiotherapy in physician's
 opinion;

 9. Comitant diseases or affecters which could affect the proton or heavy ion
 radiotherapy;

 10. Pregnancy（blood or urine β-HCG certified）or lactation;

 11. Drug or alcohol abused;

 12. HIV positive, including received anti-retrovirus treatment; chronic hepatitis B virus
 replication stage; hepatitis C active stage; syphilis active stage;

 13. HBV positive, hepatitis B virus replication stage, need to be treated with anti-virus
 treatment, but could not receive anti-virus treatment because of comitant disease;

 14. Psychiatric history, possibly affecting the completion of treatment;

 15. patients with serious complications that might affect radiotherapy， including
 1）unstable angina pectoris requiring hospitalization in the last 6 months，congestive
 heart failure，myocardial infarction； 2）acute bacterial or systemic fungal infections；
 3）exacerbation of chronic obstructive pulmonary disease ( COPD) or other respiratory
 system disease requiring hospitalization 4）hepatic function insufficiency or renal
 function insufficiency 5） immunosuppressed patients

 16. patients with connective tissue disease such as active scleroderma or lupus and so on,
 which is contraindication for radiotherapy

 17. patients can't understand treatment goal or unwilling/unable to sign up inform consent
 form；

 18. no civil capability or limited civil capacity.