Epithelial ovarian cancer is the most lethal gynecological malignancy in developed countries and the fifth most common cause of cancer-related death in women. Poor prognosis is due to challenges in early diagnosis and development of inevitable resistance to chemotherapy in majority of patients despite of good initial treatment response. The purpose of this prospective study is to analyze variation in microRNA expression in prediction of primary treatment response and the role of microRNAs in development of chemoresistance in epithelial ovarian cancer. • Objectives: To screen microRNAs from prospectively collected plasma, urine and tumor samples from patients diagnosed with epithelial ovarian cancer. Samples are analyzed for microRNA expression and differential expression is correlated with primary treatment response, progression-free survival and overall survival. • Methods: Plasma, urine and tumor samples are collected at primary surgery (open surgery or diagnostic laparoscopy) or interval debulking surgery, at 1st, 3rd and 6th neoadjuvant or adjuvant chemotherapy and at progression for high-throughput screening of microRNA expression by array technology.
Inclusion criteria: patients operated for a suspected ovarian malignancy in the Department of Obstetrics and Gynecology in Tampere University Informed consent obtained
Study Type
OBSERVATIONAL
Enrollment
160
Tampere University Hospital
Tampere, Finland
miRNA expression profile as measured by miRNA array
Expression profile calculated with bioinformatical analysis
Time frame: 5 years
Progression-free survival
Time from diagnosis to disease relapse
Time frame: 5 years
Over-all survival
Timo from diagnosis to death
Time frame: 5 years
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