8–8.45. Rethinking and Retooling Brain Health and Mental Health
Dr. Tom Insel, Co-founder and President of Mindstrong Health and former Director of the National Institute of Mental Health (NIMH)
9–10.30. How to detect problems early: Examples in Alzheimer’s Disease, Parkinson’s, anxiety and PTSD
Dr. Srijan Sen, Professor of Depression and Neurosciences at University of Michigan
Jan Samzelius, Co-Founder and Chief Scientist of NeuraMetrix
Dr. Tony Chang, Associate at Merck Ventures
Chaired by: Dr. Deanna Belsky, Associate at Dolby Family Ventures
Slidedeck supporting presentation and discussion during the 2019 SharpBrains Virtual Summit: The Future of Brain Health (March 7-9th). Learn more at:
https://sharpbrains.com/summit-2019/
45. How to detect problems early: Examples in
Alzheimer’s Disease, Parkinson’s, anxiety and PTSD
Chaired by: Dr. Deanna
Belsky, Associate at Dolby
Family Ventures
Jan Samzelius, Co-Founder
and Chief Scientist
of NeuraMetrix
Dr. Tony Chang, Associate
at M Ventures
Dr. Srijan Sen, Professor of
Depression and
Neuroscience at University
of Michigan
46. Physician Training as a Model to Identify
Predictors and Preventative Interventions
for Depression under Stress
Srijan Sen MD PhD
University of Michigan
srijan@umich.edu
47.
48. )
Sample
- 12 Cohorts
- 18,340 subjects (61% participation)
- 2051 in 2018 cohort to date
- 80+ Sites
- Across Specialties
- Internal Medicine, Transitional,
Surgery, Pediatrics, OB-GYN,
Psychiatry, Emergency
Medicine, Family Medicine
52. Methylation Changes With
Stress
Individual Factors
Longer Duty Hours
Medical Errors
Stressful Life Events
Program Factors
Low Quality Faculty Feedback
Higher Doximity Research Ranking
Lower Ethnic Diversity
Polygenic Risk Score
High Neuroticism
Low Subjective Well-Being
Childhood Stress
History of Depression
Female Gender
Minority Ethnicity
Sleep Quality
US Medical School
58. • More day-to-day variation in time asleep and wake time associated with
higher depressive symptom score during internship
Sleep Variation and Depression
• More day-to-day variation in time asleep and wake time associated with
higher depressive symptom score during internship
59. Circadian Genetics
• Sleep Longer
[Sleep Duration Polygenic Score]
Hours of Asleep
Change in
Sleep Schedule
• Wake up earlier
[Chronotype Polygenic Score]
Genetic Predisposition to...
60.
61.
62. • Current state
moderates
effect of
messages
slope = -.074 (on square root scale)
p-value = .007
slope = -.039 (on square root scale)
p-value = .01
slope = -.051; p-value = .001
63. Promise of Digital Tools in
Depression
• Prediction
– objective, real-time biomarkers
– elucidate pathway from biology to phenotype
• Prevention
– improved precision in customizing for the right
person at the right time
64. Acknowledgements
• Participating interns and program directors
• Key Personnel
– Yu Fang
– Elena Frank
– Joan Zhao
– Douglas Mata
– Yu Fang
– David Kalmbach
– Arbormoon Software
Funding: NIMH, UM Depression Center, Alfred A. Taubman Medical Institute,
American Foundation for Suicide Prevention
• Key Collaborators
– Connie Guille
– Zhenke Wu
– Ambuj Tewari
– Danny Forger
– Peter Song
– Margit Burmeister
– Todd Arnedt
– Laura Scott
66. • Bill Gates: …Alzheimer’s starts damaging the
brain more than a decade before symptoms
start showing. That’s probably when we need
to start treating people to have the best shot at
an effective drug.
• 400 trial failures due to lack of early detection
Early Detection is Key to Solving Brain Diseases
67. • Extremely high quality data
• So sensitive, it can pick up very slight changes
• So statistically powerful that diagnostic capability
can be proven
• Basically, 0% false negatives or positives, AUC=1.0
• This means much higher bar than we are used to
– r2 of 0.9 or better
• Generates lots of variables, so fingerprints for each
disease can be generated
Early Detection: Requirements
68. •Can be deployed widely
• Easy on the person
• Runs in background
• No additional hardware
• Low cost
• Easy to implement
Early Detection: Requirements
69. •Can be done with significant risk factors
• Huntington’s (HD) 100%
• Alzheimer’s (AD) APOE4
• 1 – 20% of population – 35-40% risk
• 2 – 2% of population – 100% risk
Challenge #1: Proving Diagnostic Capability
70. Huntington’s Provides a Promising Model
0.1
0.2
0.3
0.4
0.5
0.5 1.5 2.5 3.5
Inconsistency by group
Controls Presymptomatic Symptomatic
Inconsistency
71. Huntington’s Provides a Promising Model
0.1
0.2
0.3
0.4
0.5
0.5 1.5 2.5 3.5
Inconsistency by group
Controls Presymptomatic Symptomatic
Inconsistency
DiseaseActiveHealthy
73. •Assemble AD APOE4 cohort or very large
random sample
•Identify genetic risk factors for other
diseases
•Continue development of fingerprints
Next Steps
75. 2019 SharpBrains Virtual Summit: The Future of Brain Health
How to detect problems early
Tony Chang
07 May 2019
76. 76 2019 SharpBrains Virtual Summit: The Future of Brain Health | May 2019 |
Healthcare
Next generation of
drugs
Biologics and small-
molecules
Investment focus:
Oncology, Immunology &
Immuno-Oncology
First-in-class
Life Sciences
Next generation life
science technologies
Next generation tools
and services for
biotech research &
production
Tools and laboratory
supply for the
academic research
and industrial testing
Performance
Materials
Next generation
materials
Innovative display
materials, pigments
and functional
materials, and
applications
High-tech materials for
electronics and
applications
Investments in new
business fields
Cross-sector and brand
new business verticals for
the Merck Group
Interest in multiple fields,
ranging from deep health-
tech solutions, agtech &
food tech, to deep tech
enabling technologies
New Businesses
At M Ventures we discover exciting
ideas and novel technologies by thinking
beyond our own imagination; helping our
partners create tomorrow’s greatest
ideas, building the future together.
77. 77 2019 SharpBrains Virtual Summit: The Future of Brain Health | May 2019 |
Pushing the boundary
Benefits of earlier brain health detection is well recognized
Early symptom
At risk group
Triggers screening Clinical diagnosis Treatment
Functional decline
Earlier detection benefits:
Medical: earlier access to intervention to improve outcome
Financial: better disease outcome leads healthcare cost saving
R&D: open up new time windows for treatment investigation
Social & emotional: Enable patients to plan ahead while cognitively able to understand choices
78. 78 2019 SharpBrains Virtual Summit: The Future of Brain Health | May 2019 |
Road blocks
Status quo hampers early brain health detection
Social
Biology Tools
Social stigma
Lack of awareness
Subjective measures
Accessibility of tools
Heterogenous causes
Inadequate biomarkers
79. 79 2019 SharpBrains Virtual Summit: The Future of Brain Health | May 2019 |
Untapped data sources
The human body generates vast amounts of proxy data
Source: Kourtis et al., npj Digital Medicine, 2019
80. 80 2019 SharpBrains Virtual Summit: The Future of Brain Health | May 2019 |
Turning data into action
Proxy data can be useful in different context of early detection
Know the patient population
High degree of control over
environment
Know the patient population
Low degree of control over
environment
Don’t know the patient
population
Low degree of control over
environment
81. 81 2019 SharpBrains Virtual Summit: The Future of Brain Health | May 2019 |
In pursuit
Investments into digital proxies for early detection is on the rise
0
5
10
15
20
25
0
20
40
60
80
100
120
2014 2015 2016 2017 2018
No.ofdeals
USDmillion
N.A. Europe APAC Israel Deal value ($m)
Source: Pitchbook; M Ventures analysis
82. 82 2019 SharpBrains Virtual Summit: The Future of Brain Health | May 2019 |
M Ventures investment – Sonde Health
Sonde is developing a voice-based health measurement tech platform
Founded: 2015
Location: Boston, MA, US
Investments: Closed $16m Series A in Apr
2019
IP: Exclusive license from MIT Lincoln Lab
83. 83 2019 SharpBrains Virtual Summit: The Future of Brain Health | May 2019 |
M Ventures investment – Sonde Health
Speech production starts in the brain – voice as a proxy
Complexity of Core Speech Network Approximate view of speech production
Speech
Concept
Sentences and words
Syllables and phonemes
Prosodics
Phonetic representation:
Position/state of articulators/
folds
Timing and coordination
of
articulators and vocal
folds
Neural signaling
Muscle activation
Differentbrainregions
Auditoryandtactileself-monitoring
Sentence/word
s from concept
Prosodics
Syllables
Phonemes
Articulator
positions
Vocal cord
source
state
Articular and cords
timing/coordination
Neural motor
signals
Auditory
feedback
Tactile
feedback
Parkinson’s
mTBI
Cognitive
Impairment
84. 84 2019 SharpBrains Virtual Summit: The Future of Brain Health | May 2019 |
M Ventures investment – Sonde Health
Translate vocal signatures into brain health measurement models
Vocal biomarker 1
Distinct Acoustic Feature of
voice correlated with a
with an element of health,
e.g. pitch slope
Vocal biomarker 2
Distinct Acoustic Feature of
voice correlated with a
with an element of health,
e.g. Formant Frequencies
Vocal biomarker 3
Distinct Acoustic Feature of
voice correlated with a
with an element of health,
e.g. Harmonic to Noise
Ratio
Health measures are the outcome of
Sonde’s machine learning scoring
models
Vocal biomarkers are distinct acoustic
features, correlated with an element of
health or disease
Health measure
• Disease screening
• Response to treatment
• Etc. etc.
85. 85 2019 SharpBrains Virtual Summit: The Future of Brain Health | May 2019 |
M Ventures investment – Sonde Health
Voice-based health measure on self-owned device is feasible
Proof of concept in depression
• Voice sample collected from more than 4k
subjects from U.S. and India
• Samples of only 6 seconds of free speech were
collected, no baseline
• Sample collection was performed remotely, on
self-owned smartphones (no site personnel, no
lab technologies) by means of app download
• The performance of Sonde’s technology was on
par with gold standard clinical screening
instrument
Sonde’s depression screening vocal
biomarker achieved
• 80% true positive rate (or sensitivity)
• below 10% false positive rate (or
>90% specificity)
reported PHQ-9 sensitivity=77.5% &
specificity=86.7%
86. 86 2019 SharpBrains Virtual Summit: The Future of Brain Health | May 2019 |
Voice as a proxy
Big tech brands also showing interest to measure health through voice
Amazon is building a 'health & wellness’
team within Alexa as it aims to upend
health care – CNBC, May 2018
87. 87 2019 SharpBrains Virtual Summit: The Future of Brain Health | May 2019 |
Key take away
New data opens up new opportunities, but also new challenges
Extending early brain disease detection into the real world
Seamlessly integrate into everyday life
Proxy data that translate into actionable insight
Scalable across geographies & conditions