The future of Biomarkers in Prostate and Bladder Cancer · DNA Methylation compared to competing...
Transcript of The future of Biomarkers in Prostate and Bladder Cancer · DNA Methylation compared to competing...
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Confidential Information | ©2014 MDxHealth Inc. All rights reserved.
The future of Biomarkers in Prostate and Bladder Cancer Prof Wim Van Criekinge, CSO 9th August 2015, Colorado Springs
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Confidential Information | ©2013 MDxHealth Inc. All rights reserved.
Forward Looking Statement
Analyst Coverage Any opinions, estimates or forecasts made by analysts are theirs alone and do not
represent opinions, forecasts or predictions of MDxHealth or its management. Requests for copies of analyst reports should be directed at the respective analyst & institution.
This presentation contains forward-looking statements & estimates made by the management of the Company with respect to the anticipated future performance of MDxHealth & the market in
which it operates. Such statements & estimates are based on various assumptions & assessments of known & unknown risks, uncertainties & other factors, which were deemed reasonable when made but may or may not prove to be correct. Actual events are difficult to predict & may depend upon factors that are beyond the Company's control. Therefore, actual
results, the financial condition, performance or achievements of MDxHealth, or industry results, may turn out to be materially different from any
future results, performance or achievements expressed or implied by such statements & estimates. Given these uncertainties, no representations are made as to the accuracy or
fairness of such forward-looking statements & estimates. MDxHealth disclaims any obligation to update any such
forward-looking statement or estimates to reflect any change in the Company’s expectations with
regard thereto, or any change in events, conditions or circumstances on which any such statement
or estimate is based, except to the extent required by Belgian law.
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Overview Epigenetics !! Introduction !! DNA Methylation & Oncology MDxHealth !! NEXT-GENeration (Epi)genetic biomarkers !! Prostate Epigenetic Biomarkers
–! confirmMDx & Beyond !! Bladder Epigenetic Biomarkers
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Overview Epigenetics !! Introduction !! DNA Methylation & Oncology MDxHealth !! NEXT-GENeration (Epi)genetic biomarkers !! Prostate Epigenetic Biomarkers
–! confirmMDx & Beyond !! Bladder Epigenetic Biomarkers
![Page 5: The future of Biomarkers in Prostate and Bladder Cancer · DNA Methylation compared to competing technologies "!Frequency of methylation in different cancer tissues is attractive](https://reader036.fdocuments.in/reader036/viewer/2022071023/5fd7e3651dbb4746b3531e3f/html5/thumbnails/5.jpg)
Defining Epigenetics
!! Reversible changes in gene expression/function without changes in DNA sequence
!! Can be inherited from precursor cells
!! Allows to (re)use one genomes for different purposes
!! Allows to integrate intrinsic with environmental signals
Defining EpigGenome
DNA
Gene Expression
Epigenome
Chromatin
Phenotype
Genome
DNA DNA
Epigenome
Chromatin
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Chromatin, a Key Component of Epigenetic Regulation
nucleosome histone DNA
chromatin
Cellular DNA is packaged into a structure called chromatin The unit of chromatin is the nucleosome, a complex of a histone tetramer with approx. 147 bp of DNA wound around it
Epigenetics I
Intoduction | Oncology | Biomarker
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Evolutionary Perspective epigenetic (meta)information = stem cells
Cellular programming
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Evolutionary Perspective epigenetic (meta)information = stem cells
Cellular programming
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Epigenetics driving etiology of many human diseases
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Cancer is impairing key pathways/modules/networks
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Historically, Cancer Was Considered to be Driven Mostly by Genetic Changes
Example: Replication errors
GENETIC
Altered DNA/mRNA/proteins
Altered DNA sequence
X X
Oncogenesis
Tumor
!! Mutations in p53
!! Activating mutations in RAS
!! Mutations or amplifications of the
HER-2 gene
!! Chromosomal translocations in
myeloid cells and the generation
of the BCR-ABL fusion protein
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Past decade has shown that Epigenetic Changes are Important in Causing Cancer
Example: Replication errors
GENETIC EPIGENETIC
Example: Chromatin modification errors
Altered DNA/mRNA/proteins
Altered DNA sequence Altered levels of
mRNA/proteins
Altered chromatin structure
X X
Oncogenesis
Tumor
EPIGENETIC
Example:
errors
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Source: Schuebel et al 2007
0
20
40
60
80
100
120
Methylated Mutated
76-100 51-75 21-50 1-20
Example of Methylation vs Mutation: Colon & Breast Cancer
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Source: Schuebel et al 2007
0
20
40
60
80
100
120
Methylated Mutated
76-100 51-75 21-50 1-20
Dx
Example of Methylation vs Mutation: Colon & Breast Cancer
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Source: Schuebel et al 2007
0
20
40
60
80
100
120
Methylated Mutated
76-100 51-75 21-50 1-20
Dx
CDx
Example of Methylation vs Mutation: Colon & Breast Cancer
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Overview Epigenetics !! Introduction !! DNA Methylation & Oncology MDxHealth !! NEXT-GENeration (Epi)genetic biomarkers !! Prostate Epigenetic Biomarkers
–! confirmMDx & Beyond !! Bladder Epigenetic Biomarkers
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C G A C G C G C G C C G C C G A C G C G C G C C G C
C G A C G C G C G U C G U U G A U G U G U G U U G U
Na BiSulfite Treatment
Methylated Un Methylated
Step I: Bisulfite Treatment
Methylation Specific PCR (MSP)
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C G A C G C G C G U C G U U G A U G U G U G U U G U
G C T G C G C G C A G C A G C T G C G C G C A G C A
PCR Using methylation specific primers
PCR Product No PCR Product
Methylated Un Methylated
Step II: Amplification and Detection
Methylation Specific PCR (MSP)
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DNA Methylation compared to competing technologies
"!Frequency of methylation in different cancer tissues is attractive
"!Methylation is biologically the most efficient way to shutdown
gene
"!A small number of biomarkers provides clinically relevant
information
"!Methylation is highly stable especially relative to mRNA and
proteins
"!Tumor cell specific methylation patterns detectable in a
background of normal cells (higher sensitivity)
"!Availability of a detection assay with high specificity/high
sensitivity on a variety of samples including FFPE and serum
(eg FNA)
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# samples
# markers
MethylCap_Seq
Deep_Seq
Discovery Verification Validation
3 000 000
5
6 000
50
EpiHealth
<50 only models
and fresh frozen
> 50 All sample types
Incl. FFPE
Methylation Specific Seq
MethylCap_Seq
EpiHealth
Deep_Seq
Methylation Specific Methylation Specific Seq
Enrichment Sequencing (RUO) Targeted Sequencing (IVD)
Next Generation Epigenetic Profiling
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Confidential Information | ©2013 MDxHealth Inc. All rights reserved.
107 106 105 104 103 102 101 1 108 109
Full genome bp
RUO sequencing
Clinical PCR
Next Generation (Epi)genetic Profiling
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Confidential Information | ©2013 MDxHealth Inc. All rights reserved.
107 106 105 104 103 102 101 1 108 109
Full genome bp
Clinical PCR
G E N E T I C
Whole-genome sequencing
Enrichment seq (Exome)
PCR Enrichment Targeted Panels
Next Generation (Epi)genetic Profiling
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Confidential Information | ©2013 MDxHealth Inc. All rights reserved.
107 106 105 104 103 102 101 1 108 109
Full genome bp
Whole-genome Bisulphite seq
Clinical PCR
E P I G E N E T I C
Whole-genome sequencing
Enrichment seq (MBD, RRBS)
Enrichment seq (Exome)
MSP Probes (450-27K)
PCR Enrichment Targeted Panels
Enrichment Targeted Panels
Next Generation (Epi)genetic Profiling
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Confidential Information | ©2013 MDxHealth Inc. All rights reserved.
107 106 105 104 103 102 101 1 108 109
Full genome bp
Whole-genome Bisulphite seq
RUO sequencing
Clinical PCR
E P I G E N E T I C
Whole-genome sequencing
Enrichment seq (MBD, RRBS)
Enrichment seq (Exome)
MSP Probes (450-27K)
PCR Enrichment Targeted Panels
Enrichment Targeted Panels
Next Generation (Epi)genetic Profiling
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Confidential Information | ©2013 MDxHealth Inc. All rights reserved.
107 106 105 104 103 102 101 1 108 109
Full genome bp
Whole-genome Bisulphite seq
RUO sequencing
Clinical PCR
Whole-genome sequencing
Enrichment seq (MBD, RRBS)
Enrichment seq (Exome)
MSP Probes (450-27K)
PCR Enrichment Targeted Panels
Enrichment Targeted Panels
E P I G E N E T I C
Next Generation (Epi)genetic Profiling
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Confidential Information | ©2013 MDxHealth Inc. All rights reserved.
107 106 105 104 103 102 101 1 108 109
Full genome bp
Whole-genome Bisulphite seq
RUO sequencing
Clinical PCR
Whole-genome sequencing
Enrichment seq (MBD, RRBS)
Enrichment seq (Exome)
MSP Probes (450-27K)
PCR Enrichment Targeted Panels
Enrichment Targeted Panels
Whole-genome Bisulphite seq
Whole-genome sequencing
Enrichment seq(MBD, RRBS)
Enrichment seq(Exome)
Probes (450-27K)
Enrichment Targeted Panels
Enrichment Targeted Panels MSP
PCR
E P I G E N E T I C
Next Generation (Epi)genetic Profiling
![Page 28: The future of Biomarkers in Prostate and Bladder Cancer · DNA Methylation compared to competing technologies "!Frequency of methylation in different cancer tissues is attractive](https://reader036.fdocuments.in/reader036/viewer/2022071023/5fd7e3651dbb4746b3531e3f/html5/thumbnails/28.jpg)
Overview Epigenetics !! Introduction !! DNA Methylation & Oncology MDxHealth !! NEXT-GENeration (Epi)genetic biomarkers !! Prostate Epigenetic Biomarkers
–! confirmMDx & Beyond !! Bladder Epigenetic Biomarkers
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ConfirmMDx Background
Journal of Urology 2013 Multi-center clinical validation study demonstrates 90% NPV
American Health & Drug Benefits 2013 Reduces healthcare spending by >$588 per patient
American Health & Drug Benefits 2014 10-fold reduction in repeat biopsies in clinical utility study
The Prostate 2011 Meta-Analysis Reports Clinical Utility of Epigenetic Assay
BJUI 2011 Assay shows 20% improvement in NPV over histopathology
Journal of Urology 2014 Multi-center, confirmatory validation study
Performance of ConfirmMDx genes and methylation technology:
!! Reported in over 45+ peer-reviewed scientific publications
!! Over 5,000 subjects in studies
!! Multinational, academic and community settings
!! Prospective and retrospective multicenter, blinded studies
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Confidential Information | ©2013 MDxHealth Inc. All rights reserved.
tumor- associated epigenetic!field effect!
biopsy!biopsy
tumor!
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NPV ~96% Significant PCaNPV ~90% All PCa
Negative BiopsyPersistent Risk Factors
DNA Methylation
confirmMDx
Prostate Mapping
Residual Tissue
Prostate Mapping
Residual Tissue
Avoid Repeat Biopsy
NPV ~96% Significant PCaNPV ~90% All PCa
Avoid Avoid Avoid Repeat Biopsy Biopsy Biopsy
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NPV ~96% Significant PCaNPV ~90% All PCa
Clinically Significant or Indolent PCa?
Negative BiopsyPersistent Risk Factors
DNA Methylation
Develop Algorithm for Significant PCa Risk
… and beyond
Avoid Repeat Biopsy
NPV ~96% Significant PCaNPV ~90% All PCa
Avoid Avoid Avoid Repeat Biopsy Biopsy Biopsy
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confirmMDx Risk Score
Weighed Methylation Intensity
Core APC
GSTP1
RASSF1
1 0.73 46.95 1.15 2 0.00 16.05 0.00 3 0.00 0.00 0.00 4 0.00 15.04 0.00 5 0.00 0.00 0.00 6 0.00 0.00 0.00 7 0.00 0.00 0.00 8 0.00 0.00 0.00 9 0.00 0.00 0.00
Methylation Intensity
8.88
sum 48.83 16.05 0.00 15.04 0.00 0.00 0.00 0.00 0.00
average
•! Age: 71 •! Caucasian •! 1st Biopsy •! HGPIN
3/9 cores positives
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Met
hyla
tion
Inte
nsity
0
2
4
6
8
10
Bx- GS 6 GS ! 7
p = .457
p < .001
p < .001
confirmMDx Risk Score
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Epigenetic Health Index (EHI)Risk Score to Further Stratify DNA-Methylation Positive Patients
Low Risk Group•! RBx –•! RBx + GS 6
High Risk Group•! RBx + GS ! 7
DNA-Methylation Positive Patients
Algorithm for Risk Stratification Using:
•! Epigenetic Risk: Cores Positive and Methylation Intensity
•! Clinical Risk Factors: Age, PSA, DRE, Histopathology
Epigenetic Health Index (EHI)
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Risk Score Comparison
Parameters NCCN PCPTRC2 EHI
DemographicAge
Race
Clinical
Family history
Prior biopsy
DRE
Pathology of - index Bx
GS
PSA density
Molecular
PSA
ConfirmMDx+ Bx Cores
Methylation Intensity
http://deb.uthscsa.edu/URORiskCalc/
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Epigenetic Health Index (EHI)Multivariate Logistic Regression
Odds Ratio for GS >= 7
Risk Factor
0
2
4
6
8
10
12
14
16
HGPIN Age % + Biopsies
PSA Atypia EpiScore % positive
cores Methylation
intensity
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Epigenetic Health Index (EHI) EHI
0
10
5
8.33
Age-specific baseline for methylation positive
men with HGPIN
3/9 Positive Cores
Methylation Intensity (weighed in logistic regression model)
PSA (8.2 ng/ml)
EHI on 1st Biopsy 8.33
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Epigenetic Health Index (EHI) EHI
0
10
5
8.33
Age-specific baseline for methylation positive
men with HGPIN
3/9 Positive Cores
Methylation Intensity (weighed in logistic regression model)
PSA (8.2 ng/ml)
EHI on 1st Biopsy 8.33
Pathology on 2nd Biopsy GS 8
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Confidential Information | ©2013 MDxHealth Inc. All rights reserved.
ConfirmMDx and Epigenetic Health Index (EHI)
!! Improves stratification on decision for repeat Biopsies
!! Helps reduce unnecessary repeat Biopsies !! EHI identifies men with clinically significant PCa outperforming traditional risk score methods like PSA and PCPTRC2
Low Risk Score!Active Follow Up!
High Risk Score!Repeat Biopsy!
Avoid RBx Avoid RBx
Negative Prostate Biopsy
DNA Methylatio
n Active Follow Up
EHI
PSA PCPTRC2 EHI
AUC 0.57
AUC 0.62
AUC 0.74
ConfirmMDx Flow Chart
ConfirmMDx:
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Overview Epigenetics !! Introduction !! DNA Methylation & Oncology MDxHealth !! NEXT-GENeration (Epi)genetic biomarkers !! Prostate Epigenetic Biomarkers
–! confirmMDx & Beyond !! Bladder Epigenetic Biomarkers
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Con
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14 M
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Bladder Confirm MDx (2010)
Con
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Con
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14 M
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Bladder Confirm MDx
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Con
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Bladder Confirm MDx
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Biomarkers validated by independent studies studies
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Con
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Biomarkers validated by independent studies
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Con
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Biomarkers validated by independent studies
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Con
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Biomarkers validated by independent studies
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Overview DNA based bladder cancer markers
epigenetic
detection prognosis
TWIST1 NID2
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Overview DNA based bladder cancer markers
genetic
epigenetic
detection prognosis
TWIST1 NID2 VIM
FGFR3 P53
hTERT EP300, MLL3, MLL2, ARIDNA1, KDMA6A, ATM, ATRX, BRCA2, ATR, STAG2, ERCC2, PDGFRA, CDKNA2A, RB1, CDKN1A, NF1, PIK3CA,
FBXW7, CDH1, NFE2L2, MALAT1, NCOR1, PRX
p16 CHH1 MLL2
ARID1A KDM6A
GSTP1 RASSF1
A APC
RUNX3 TIMP3 SOX1 HIC1 LINE1
HOXA9
FHIT LAMC2 SFRP1 PMF1 ISL1
ALDH1A3 PCDH7 ITIH5 KLF4
OSR1 ONECUT
2 OTX1
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Select best biomarker panel for detecting BC in urine of patients with Hematuria
Hematuria
Bladder tumor 3-28%
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Validation Study / case-control / 160 Patients
MSP SNaPshot Mutation
TWIST1 NID2
(TWIST1 neutral)
ONECUT2 OTX1
FGFR3 TERT
PIK3CA KRAS NRAS HRAS
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Optimal model: NPV > 99%, 97% sensitivity
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Conclusions
•! A limited number of bladder cancer specific methylation markers can be measured in urine to accurately detect the presence of bladder cancer in hematuria patients
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Conclusions
•! A limited number of bladder cancer specific methylation markers can be measured in urine to accurately detect the presence of bladder cancer in hematuria patients
•! ConfirmMDx for Bladder can be used as a rule-in for cystoscopy (in case of hematuria) with a very high NPV and very high sensitivity thereby resulting in a significant reduction in the number of cystoscopies.
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Conclusions
•! A limited number of bladder cancer specific methylation markers can be measured in urine to accurately detect the presence of bladder cancer in hematuria patients
•! ConfirmMDx for Bladder can be used as a rule-in for cystoscopy (in case of hematuria) with a very high NPV and very high sensitivity thereby resulting in a significant reduction in the number of cystoscopies.
•! It represents a significant improvement in PPV as compared to standard of care. Potential in the recurrence setting is actively investigated.
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Q&A Epigenetics !! Introduction !! DNA Methylation & Oncology MDxHealth !! NEXT-GENeration (Epi)genetic biomarkers !! Prostate Epigenetic Biomarkers
–! confirmMDx & Beyond !! Bladder Epigenetic Biomarkers