Een behandeling op maat voor iedere patient: wat betekent dat in de praktijk? Emile Voest

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1 Een behandeling op maat voor iedere patient: wat betekent dat in de praktijk? Emile Voest

2 Need for personalised cancer treatment Scenario: patient with metastasized colorectal cancer Doctor suggests treatment with systemic treatment Will this drug work for me? Will I suffer from side-effects? Are there alternatives?

3 Need for personalised cancer treatment Only subset of patients responds to approved treatments such as chemotherapy and targeted treatments Limited but rapidly increasing set of genetic markers but no biomarkers for classical chemotherapy Response rate of standard of care treatment regimens for colorectal cancer Treatment regimen Response rate (%) Mechanism of action CAPOX-B 1 53 Genotoxic + anti-vegf Irinotecan 2 13 Genotoxic Cetuximab (unselected 8 Anti-EGFR for KRAS status) 3 Cetuximab (KRASwt) 4 20 Anti-EGFR 1) Schmiegel et al. Ann Oncol 2013;24:1580 2) Vanhoefer et al. J Clin Oncol 2001;19:1501 3) Jonker et al. NEJM 2007;357:20 4) Price et al. Lancet Oncol 2014;15:569

4 Cancer cells: THESE CELLS ARE INCREDIBLY COMPLEX! Courtesy L. Wessels

5 The genome, our DNA organism cell chromosome DNA ~3 billion letters: G, A, T, C Changes in our DNA (mutaties) can cause diseases such as cancer: Normal DNA means no cancer!! Courtesy of E. Cuppen

6 DNA sequencing technology is rapidly advancing

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8 Personalized Cancer Treatment: The dilemma Every patient is unique Mutated genes and combinations Groups quickly become small, especially in combination with available treatments: large experimental cohorts required! Gene networks Cancer systems biology

9 Impact of targeted therapy on survival Trastuzumab - Vemurafenib - Erlotinib - Crizotinib - Nivolumab Progression free survival Overall survival Slamon Chapman Zhou Robert Solomon Lancet NEJM NEJM Oncol Nivolumab Use First-Line Improved Erlotinib of chemotherapy Crizotinib Survival Previously versus chemotherapy with versus plus Untreated Vemurafenib a monoclonal Chemotherapy Melanoma as fi in rst-line antibody Melanoma without ALKtreatment against with BRAF Positive BRAF Mutation HER2 Lung for V600E patients for Cancer metastatic Mutation with advanced breast cancer EGFR that mutation-positive overexpresses non-small-cell HER2 lung cancer (OPTIMAL, CTONG-0802): a multicentre, open-label, randomised, phase 3 study

10 Better use of existing medication

11 Better use of existing medication? Her2 overexpression occurs in many other tumor types: - Gastric cancer: 10-30% - Esophageal cancer: 0-83% - Ovarian cancer: 20-30% - Endometrial cancer: 21-47% - Lung cancer: 20% Etc. OS Her2 based treatment in gastric cancer has also resulted in improved survival PFS Iqbal 2014 Mol Biol Int

12 Similar mutations can be found across tumor types Response rate BRAF V600E mutant tumor to vemurafenib: - 80% in melanoma But!!!!! - Only 5% in colorectal cancer Davies 2002 Nature Kopetz 2010 JCO Prahallad 2012 Nature

13 Every patient has multiple tumors :Highly branched evolution in ovarian cancer TP53 I102N SBK2 THBS3 MSH3 Primary tumor Metastases omentum Control (blood) Metastases ovarium TP53 P278L TAF1 DNAH11 PIK3R5...

14 Reconstructing tumor history Mate-pair data 1,420 somatic breakpoints Common in all Common in 1.1, 1.2, 1.4 & 1.5 Common in 1.7, 1.8, 1.9 & 1.10 Common in 1.1 & 1.2 Common in 1.4 &

15 Intrapatient variability: mixed responses to treatment and the value of paired biopsies Date sample collection Treatment phase 12/12/11 Baseline 5/31/12 6/14/12 8/3/12 On-treatment 1 On-treatment 2 Posttreatment Biopsy / Surgery Material Response to treatment Specim Tumor en % Conc ng/µl Volum e DNA yield (ng) NA Blood I NA NA Remarks Biopsy Lymphnode 1 II Whole specimen used Biopsy Lymphnode 1 Surgery Lymphnode 1 Lymphnode 2 Lymphnode 3 Progressive L505H Progressive L505H Stable Stable Biopsy Lymphnode 4 Progressive III-1 0 NA NA NA NA III-2 50 NA NA NA NA III Only 8 x 20 um sections used IV-1 90 NA NA NA NA Only 1 x 20 um section IV used IV-3 90 NA NA NA NA Only 1 x 20 um section IV used IV-5 85 NA NA NA NA Only 5 x 20 um IV sections used Only 10 x 20 um V sections used V Whole specimen used V-3 80 NA NA NA NA Hoogstraat et al. Unpublished data

16 Bringing data together! Patient data Treatment and response Pathology and lab Genomic data ezis/epd ecrf LMS pathology Research DB PalGA IKNL etc DATABASE: SYSTEMATIC DATA INTEGRATION AND MINING Public data Patient rapport Biomarker discovery Stakeholders Medical Specialist Patient Pharma Future patient Insurance companies Society

17 How to organize personalized cancer treatment? 1

18 CPCT Aim: participation of NKI and all 8 UMCs Followed by all 28 large teaching hospitals

19 National scaling: Hartwig Medical Foundation Value chain Including patients Collecting clinical data Taking biopsies 1 Preprocessing biopsies Sequencing DNA of biopsies Value chain Managing sequence and clinical data in database, and reporting Analyzing database for new treatment and non-treatment options Conducting clinical trials Storage of tissue 1 (biobank) Centralized Facility in a Not-for-Profit Foundation setup - Made possible through philanthropy (2 to 3 years) - Whole genome sequencing using Illumina Xten setup for > 7000 patients - Integrate clinical and genetic data - Provide input for individual patient reporting - Provide access to cohort information for research to benefit future patient care Location: Matrix VI, Amsterdam Science Park Operational: Summer 2015

20 Hartwig Medical Foundation Science Park Amsterdam

21 Return of genetic results in oncology: Patient oriented flow chart on tiered consent Lolkema et al. J Clin Oncol, 2013

22 Components of DNA guided decision making Ethics Genome data analysis and interpretation Biobanking Large scale genome sequencing Data sharing (national/internation al) Education Standardisation and integration of clinical data Returning genetic data to patients and physicians Big data/ict

23 A new dimension in personalized medicine: Tumour organoids Human colorectal cancer organoids Living tumors of individual patients Sato et al. Gastroenterology 2011

24 Genetic similarity organoid and biopsy Biopsy procedure Biopsy specimen DNA isolation DNA sequencing AB SOLiD 2000 gene set Compare tumor biopsy and tumor organoid Organoid culture Biopsy Organoid APC TP53 CREBBP INHBE GSK3B GUCY1A2 IGF1R DSCAML1 LAMB3 TOP2B CEP290 TTN USP9X APC KRAS SMAD2 NOTCH4 EIF3J EWSR1 NTRK3 JMJD1C APC TP53 KRAS SMAD4 DDR1 FLOT2 CXCR7 WEE2 DAPK APC TP53 KRAS SMAD1 ADAMTS18 CCR3 INPP4A RAB23 TTN APC KRAS CSF2RA CTBP2 FANCD2 FGFR1 CDC42BPA MUSK PAPD7 RICTOR STAT3 TTN UBR5 VPS16

25 First patient included in TUMOROID trial Pre-treatment Post-treatment Untreated control 5 µm 5-FU D14 UM-1

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27 Conclusions We are making progress!!!! Many new drugs have reached the market Finding the right patient for the right drug is the challenge! Imaging, DNA, CTC, organoids will provide better insight in who and how to treat

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