Mutational landscape of cervical cancer identified by prospective clinical sequencing in a nationwide cancer network.

Authors

Julian Schink

Julian C. Schink

Cancer Treatment Centers of America, Zion, IL

Julian C. Schink , Ricardo H. Alvarez , Julia Andrea Elvin , Amber Moran , Rebecca Rollins , John P. Geisler , David McIntosh , Natalie Godbee , Bradford A. Tan , Maurie Markman

Organizations

Cancer Treatment Centers of America, Zion, IL, Cancer Treatment Centers of America, Newnan, GA, Foundation Medicine, Inc., Cambridge, MA, Cancer Treatment Centers of Americ, Newnan, GA, Indiana Gyn Onc, Indianapolis, IN, CTCA, Tulsa, OK, Midwest Reg Med Ctr, Zion, IL, Cancer Treatment Centers of America, Boca Raton, FL

Research Funding

Other

Background: Tumor genomic profiling is a critical component of precision oncology allowing the detection of genomic alterations (GA) that have the potential to be targeted therapeutically. We present an analysis of comprehensive genomic profiling (CGP) of a large series of cervical cancer (CC) patients assayed in a nationwide cancer network. Methods: 118 Pts with advanced CC underwent CGP with hybrid capture of up to 406 cancer-related genes on tumor tissue or for 62 genes on circulating tumor DNA ordered during clinical care for treatment decision-making between 01-2013 to 05-2018. Clinically relevant genomic alterations (CRGA) were defined as associated with targeted therapies or mechanism-driven clinical trials. The treatment histories for these patients were obtained with IRB-approved retrospective review. Results: Median age was 47 years (range, 27-71), 69% were Caucasian. GA were identified in 88% (104/118) of CC, of which 87 (74%) had a clinically relevant genomic alteration (CRGA). PI3K/AKT/mTOR pathway (PIK3CA, AKT1/2/3, PIK3R1, PTEN, MTOR, STK11, FBXW7) CRGA were most commonpresent in 73.5% (64/87) of CC. CRGA in other targetable pathways were identified: 24.1% (21/87) in MEK (KRAS, NRAS, HRAS, BRAF, RAF1, GNAS, NF1, NF2), 9.1% (8/87) in HRD (BRCA1/2, ATM, PALB2, BRIP1) and 24.1% (21/87) in ERBB (ERBB2, ERBB3, ERBB4, EGFR). One patient was MSI-high and one patient was TMB-high. 29.8% (26/87) of CC patients were ordered a genomically-matched treatment, and 24 pts received treatment; 61.5% (16/26) were agents that were FDA approved in a different tumor type, and 34.6% (9/26) through referral to a matched mechanism driven clinical trial. With access to the clinical trial TAPUR, the frequency of matched treatment through clinical trials increased over time from 2013 to 2018. The PFS for non study related patients was 7 weeks and OS was 19 weeks. Conclusions: In a large series of Cervical Cancer patients assayed with CGP, 27.5% (24/87) of pts received matched treatment, which was predominantly targeted therapy. The comprehensive sensitive and unbiased nature of CGP, coupled with a multidisciplinary molecular tumor board and staff dedicated to genomic interpretation, assisted in achieving a high frequency of patients’ participation in clinical trials and gene-directed treatment.

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Abstract Details

Meeting

2019 ASCO Annual Meeting

Session Type

Publication Only

Session Title

Gynecologic Cancer: Publication Only

Track

Gynecologic Cancer

Sub Track

Cervical Cancer

Citation

J Clin Oncol 37, 2019 (suppl; abstr e17022)

DOI

10.1200/JCO.2019.37.15_suppl.e17022

Abstract #

e17022

Abstract Disclosures

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