We here report selleck JQ1 the results of a phase I/II clinical trial using KIF20A 66 mono peptide as cancer immunotherapy for the patients with advanced pancreatic cancer. Methods Patient eligibility Patients with unresectable or metastatic pancreatic cancer, who were resistant to gemcitabine and TS 1 treatments or unable to continue the treatment of gemcitabine or TS 1 because of severe adverse events, were enrolled in this trial from March 2009 to February 2010 at Chiba Tokushukai Hospital. The eligibility criteria are as follows unresectable pancreatic cancer with metastatic, recurrent and/or locally advanced disease based on diagnostic imaging using computed tomography and histological examinations.
Other entry criteria included the HLA A 2402 positive status, an Eastern Cooperative Oncology Group performance status of 0 2, age of 20 85 years, life expectancy of at least 2 months, adequate respiratory, and liver and kidney functions for vaccination treatment. The exclusion criteria are as follows pregnancy or lac tation, active infection, other active malignancy, non recovered injury, and treatment with immunosuppressive agents or steroid. Written informed consent was obtained from each individual patient, and the study was approved by Tokushukai Group Ethical Committee. The study was registered at University Hospital Medical Information Network Center with the Clinical Trial Regis tration number UMIN000004919. Control group Clinical data used as the control group in this study were obtained from our and other hospitals where written informed consent was obtained at each institution.
Clinical information of each patient utilized in our statistical analysis includes age at diagnosis, sex, performance status at the endpoint of the Standard Chemotherapy, treatment status at primary lesion, median survival time, and mean survival time. This study was approved by the institutional review board at each institution. Study design and end points This study is a non randomized, open label phase I/II clinical trial with dose escalation of KIF20A 66 peptide mono therapy. The primary end point of phase I part was safety of peptide vaccination and tolerance for phase II part. The primary end point of phase II part was antitumor effects assessed by CT scan in accordance with the Response Dacomitinib Evaluation Criteria in Solid Tumors criteria version 1. 1.
The secondary end points were overall survival, progression free survival, immunological responses assessed by CTL induction specific Dorsomorphin to the KIF20A 66 peptide and the injection site reactions. In phase II part, the information of 9 patients with best supportive care in the Chiba Tokushukai Hospital from January 2007 to January 2009 was used as a historical control. Treatment protocol After emulsified with Incomplete Freunds adjuvant, KIF20A 66 peptide in the amount of 1. 0 or 3.