Initiation of a formalized precision medicine program in gynecologic oncology.

OBJECTIVE In an effort to better incorporate precision medicine into clinical practice, we initiated a pilot project to screen, discuss, and genetically characterize patients with metastatic or recurrent gynecologic malignancies for whom no curative standard of care exists. METHODS In 7/2014, we initiated a multi-disciplinary Precision Medicine Board (PMB) whose purpose was to apply molecular profiling to select and prioritize early phase clinical trial enrollment for high-risk gynecologic malignancies. Additional objectives were to record outcomes and enable scientific discussions of mutations which may foster local translational research. FoundationOne was the preferred genomic platform; results were reviewed by a team comprised of disease site specialists, phase I trialists, and basic and translational scientists affiliated with the Gynecologic Cancer Program. A detailed database for each patient was created and is followed prospectively for treatment use and resultant outcomes. RESULTS To date, we have presented 62 cases with interpretable FoundationOne testing on 60 tumor samples (31 ovarian, 18 uterine, 9 cervical, and 4 other female genital tract). Significant genomic alterations were commonly found in all tumor types (median: 3); TP53 (45%) and PIK3CA (27%) were the most frequently noted mutations; however, molecular profiling resulted in identification of few actionable mutations (6%). To date, we have matched 4 patients on therapies based on actionable mutations. CONCLUSIONS The predominant function of our PMB is establishment of a forum to enhance research while providing clinical care for refractory malignancies. We have matched patients with specific mutations to ongoing trials and are developing investigator-initiated studies based on trends within genomic profiling results. Longer-term follow up will be required to determine the success of this strategy.

[1]  David Cameron,et al.  2-year follow-up of trastuzumab after adjuvant chemotherapy in HER2-positive breast cancer: a randomised controlled trial , 2007, The Lancet.

[2]  F. Collins,et al.  Mutations in the p53 gene occur in diverse human tumour types , 1989, Nature.

[3]  Jane Fridlyand,et al.  Widespread potential for growth-factor-driven resistance to anticancer kinase inhibitors , 2012, Nature.

[4]  Gregory J Tsongalis,et al.  Implementation of a Molecular Tumor Board: The Impact on Treatment Decisions for 35 Patients Evaluated at Dartmouth-Hitchcock Medical Center. , 2015, The oncologist.

[5]  Amber M. Johnson,et al.  A decision support framework for genomically informed investigational cancer therapy. , 2015, Journal of the National Cancer Institute.

[6]  Steven J. M. Jones,et al.  Integrated genomic characterization of endometrial carcinoma , 2013, Nature.

[7]  Carlos Caldas,et al.  Driver mutations in TP53 are ubiquitous in high grade serous carcinoma of the ovary , 2010, The Journal of pathology.

[8]  Benjamin G. Bitler,et al.  Synthetic lethality by targeting EZH2 methyltransferase activity in ARID1A-mutated cancers , 2015, Nature Medicine.

[9]  A. Nicholson,et al.  Mutations of the BRAF gene in human cancer , 2002, Nature.

[10]  Benjamin J. Raphael,et al.  Integrated Genomic Analyses of Ovarian Carcinoma , 2011, Nature.

[11]  T. Fleming,et al.  Use of chemotherapy plus a monoclonal antibody against HER2 for metastatic breast cancer that overexpresses HER2. , 2001, The New England journal of medicine.

[12]  Francisco Cervantes,et al.  Five-year follow-up of patients receiving imatinib for chronic myeloid leukemia. , 2006, The New England journal of medicine.

[13]  C. Sawyers,et al.  Efficacy and safety of a specific inhibitor of the BCR-ABL tyrosine kinase in chronic myeloid leukemia. , 2001, The New England journal of medicine.

[14]  F. Collins,et al.  A new initiative on precision medicine. , 2015, The New England journal of medicine.

[15]  Edward S. Kim,et al.  The BATTLE trial: personalizing therapy for lung cancer. , 2011, Cancer discovery.

[16]  Francisco Cervantes,et al.  Imatinib compared with interferon and low-dose cytarabine for newly diagnosed chronic-phase chronic myeloid leukemia. , 2003, The New England journal of medicine.

[17]  F. Vecchio,et al.  HER-2 intratumoral heterogeneity , 2013, Modern Pathology.

[18]  Patricia L. Harris,et al.  Activating mutations in the epidermal growth factor receptor underlying responsiveness of non-small-cell lung cancer to gefitinib. , 2004, The New England journal of medicine.

[19]  Razelle Kurzrock,et al.  Personalized Medicine in a Phase I Clinical Trials Program: The MD Anderson Cancer Center Initiative , 2012, Clinical Cancer Research.

[20]  Melonie P. Heron Deaths: leading causes for 2010. , 2013, National vital statistics reports : from the Centers for Disease Control and Prevention, National Center for Health Statistics, National Vital Statistics System.

[21]  Eunyoung Kang,et al.  Intratumoral heterogeneity of HER2 gene amplification in breast cancer: its clinicopathological significance , 2012, Modern Pathology.

[22]  Daniel V.T. Catenacci,et al.  Next‐generation clinical trials: Novel strategies to address the challenge of tumor molecular heterogeneity , 2014, Molecular oncology.