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Profusa IMPLANTABLE BIOSENSOR FOR LONG-TERM
CONTINOUS MONITORING OF BODY CHEMISTRY
November 2016
Frederic GAUME
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VISION/ OPPORTUNITY
TECHNOLOGY AND CURRENT APPLICATIONS
FUTURE DEVELOPMENTS
2
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TO UNLEASH EVERYONE’S
REAL TIME BIOCHEMISTRY TO
BE A PART OF THE WORLD’S
DIGITAL TOOLBOX
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GRAND VISION BUT DIFFICULT TO ACCOMPLISH –
OUR DESIGN PRINCIPLES, STARTING WITH PATIENTS
4
1 2 3 Clinical Grade & On-Demand
Data
Consumer
User Experience
Broad
Access
Decisions in real time, informed by actionable biochemistry,
utilized by most of us, will improve care for everyone
Triggering timely, actionable medical decisions
Passive data collection, no user action required
Low COGS Combined with mass adoption
Clinical grade wearable
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PROFUSA ACHIEVEMENTS TO DATE &
CURRENT PIPELINE
• Founded 2009
• South Fan Francisco, CA and College Station, TX
• 27 Employees
• Series A&B funding
• >$20 million grants
support
• CE clearance of first product Sept 2016
• Strong network of collaborators
5
Programs Indications Uses Status Market
Size
Lumee
Tissue O2
Peripheral
Arterial
Disease
Intra & Post
operative patient
monitoring
CE Sept
2016
2-3B USD
Glucose Pre-diabetic/
Type 2
diabetes
Consumer Health
Insight from Glucose
level evolution
First in man
H1 2017
$$B USD
Type 1
diabetes
Continuous Glucose
Monitoring of
patients
First in man
H1 2017
$$B USD
Multi
Analytes
COPD At home
management of
COPD patients
Concept
Proven
$B USD
Blood Gas
Patient monitoring in
trauma/ ER centers
Concept
Proven
$B USD
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PROFUSA SITES AND COLLABORATORS
6
Dr. Tejal Desai
• Nanosphere stability
Dr. Bruce Klitzman
• Physiology
• Long-term rat studies
Dr. Mike McShane
• Optical instrumentation
• Algorithm development
• Synthetic chemistry
• Hydrogel development
• Optics instrumentation
• Clinical testing
• Quality and manufacturing
• All business functions
SF
Well utilized dye
synthesis hoods
6 lab bays
TX • Pre-clinical testing
• Oxidase sensor
development
Chem lab space within animal facility
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VISION/ OPPORTUNITY
TECHNOLOGY AND CURRENT APPLICATIONS
7
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WHY OTHERS HAVE FAILED – THE AVASCULAR
FOREIGN BODY RESPONSE (FBR)
8
Biological response that has
been the “death sentence” of
in-body sensors
Sensor
Needle
Collagen
Blood Vessel
/ Capillaries
Immune
Cells
Se
ns
or
sig
na
l
Days to weeks
ERROR
BLOOD
LEVEL
Typical poor sensor
performance
FREQUENT
SENSOR ”DROP-OUT”
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MEET THE PROFUSA SENSOR – SOLVES AN UNSOLVABLE
BARRIER FOR MORE THAN 5 DECADES
9
• Micro hydrogel sensor – 250 microns
diameter; 3 mm length
• Embedded fluorescence sensing
chemistry
• Hypodermic needle placement in
the subcutaneous space
• Non-invasive optical signal
collection
• Clinical-grade data
• Demonstrated >24 month longevity
in humans
• Multi-analyte capable
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HOW PROFUSA SENSORS WORK…
OXYGEN EXAMPLE
10
Excitation light is shined on the skin surface and reaches the
proprietary sensor element
1 3 The fluorescent signal from the sensor travels to the surface of the skin, captured by the reader. The
data acquisition process takes seconds.
2 Sensor is embedded with fluorescent dye that is sensitive to oxygen. The fluorescent signal
correlates to tissue oxygen
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OUR SENSOR MEASURES OXYGEN CONCENTRATION
IN THE TISSUE
11
Lumee
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O2 TISSUE MONITORING - PROFUSA’S
FIRST BIOSENSOR
12
15
months
3
months
2 years and
going…
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13
Fiber optic probes (Oxylyte) are large and
disrupt the tissue. In contrast, our tissue-
integrating hydrogel sensors do not cause
mechanical stress and minimally displace
tissue)
Fluorescent overlay of sensor signal
MEASURING OXYGEN SENSORS IN RATS USING
AN IVIS IMAGER
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EXAMPLE EXPERIMENTAL SETUP ON PIGS
14
32 Readers attached to anesthetized and awake pigs
Anesthetized Awake (in sling)
CONFIDEN
TIAL
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15
SMALL, ADAPTABLE READER FORM-FACTOR
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16
injector
Reader
Console
TISSUE OXYGEN PROGRAM – 1ST PRODUCT: CE MARK IN SEPTEMBER 2016
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PAD/ CLI A GLOBAL EPIDEMIC WITH A LARGE IMPACT
ON HEALTHCARE
CONFIDENTIAL 17
PAD
15-19M
Cancer 12-15M
PAD
15-30%
Breast Cancer 11%
US Annual
Cost of PAD
160 – 290 B USD Key Risk Factors:
• Age
• Diabetes
• Smoker
150,000 amputations / year from PAD/CLI
US Prevalence
US 5Y Mortality
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CLI AS 1ST INDICATION FUNCTIONAL LIMB PRESERVATION 1) REVASCULARIZATION TO INCREASE FOOT PERFUSION
2) WOUND CARE
3) SURVEILLANCE
18
6 Months
• Foot ulcers & infections =
most common cause for
hospital admission of
diabetics
• US foot ulcer cost: $10-20k
/ episode1
• 6-12 month to wound
healing
• Complete ulcer healing:
~60-80%2
1.Rogers L et al. The Right to Bear Legs - An Amendment to
Healthcare: How Preventing Amputations Can Save
Billions for the US Health-care SystemJournal of the
American Podiatric Medical Association 2008;98:166-186
2.Hoffman et al: Complete ulcer healing as Primary Endpoint in Studies on Critical Limb Ischemia? A Critical
Reappraisal EJVES, 33, 311-16 (2007)
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UNMET NEED – PERFUSION IS KEY AND ITS
QUANTIFICATION DIFFICULT TASC-II RECOMMENDS TCPO2 MEASUREMENTS FOR ALL CLI PATIENTS
19
? ?
~20-30k USD
> 100k USD
Very diverse clinical outcome and costs
When is
good,
good enough?
Success, wound healed, no amputation
Partial success, 2nd revascularization
required, minor amputations
Wound does not heal, major
amputation required
BTK surgery
~60-80k USD
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20
INTRA-OP, LUMEE DATA COLLECTED FROM A 90 Y.O.,
CLASS 4 CLI PATIENT
A
B
C
Balloon inflate
Balloon deflate
0.8
1
1.2
1.4
2
3
0.6
0.8
1
20 30 40 50
Time elapsed (min)
0.6
0.8
1
20 40 60 80
0.8
1
1.2
1.4
Recover
y Rm.
Stent
Time elapsed (min)
A A B B C C
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21
ABI 1.0 NA NA 1.07 NA
Sensilase
(mmHg)
NA 45 67 47 43
2 3
4
0.5
0.7
0.9
1.1
1.3
Post-op D7 D14 D21 D28
POST-OP, LUMEE DATA COLLECTED FROM THE SAME PATIENT
Summary of First-in-Man Study Results
• 48 sensors were injected into a total of 14 people for a cumulative exposure time of 336 subject-days
• Primary endpoint was successfully met; the
positive sensor detection rate was 97.2% (n=212)
• There were no reported adverse events (AE) related to the research materials. A total of 26
AEs reported; 18 of which were mild bruising related to the sensor injection.
J Vasc Surg 2015; 61:1501-10
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VARIETY OF PRE-CLINICAL APPLICATIONS
Sensor 2 (Avg Rad) Sensor 3 (Avg Rad)
6/24/2013
14:30 15:00 15:30
0
0.5
1
Re
lativ
e O
2
Tumor Metabolism
22
Gut Microbiome O2
Stroke/TBI Research Flaps/Reconstruction
`
Re
lative
O
2
Hypoxia in Pigs
Pasted Series Pasted Series
11/26/2013
10:30 11:00 11:30
0
0.5
1
0
0.2
0.4
0.6
0.8
Re
lative
se
nso
r si
gn
al
Porcine Diabetes
Glu
co
se (
mg
/dL)
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VISION/ OPPORTUNITY
TECHNOLOGY AND CURRENT APPLICATIONS
FUTURE DEVELOPMENTS AND APPLICATIONS
TINY SENSORS, GREAT BIG WORLD !
23
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DIGITAL HEALTH TRANSFORMATION
Digital Health, by creating actionable patient data to aid in the
treatment and/or prevention of diseases outside of the traditional care
setting, will reduce inefficiencies and unlock significant value for all
stakeholders
400B USD
is spent treating
chronic care
patients in the
hospital setting
About 40% of the $3T the US spends
on healthcare
each year could
have been
avoided
Fees for Services
Supply Centric Model Value Based Healthcare /
Population Health Management
Demand Driven / Patient Centric
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LIMITATIONS OF CURRENT TECHNOLOGIES DESPITE A CLEAR VISION AND SIGNIFICANT INVESTMENT FROM ALL
STAKEHOLDERS - FEW ADVANCES
CONFIDENTIAL 25
Accessibility
Data Value
Clinical
Grade
Nice to
have
Physicians
Hospitals
Consumers Patients
Seamless Experience
Ease of Use
Data of clinical value
Glucose, EEG, Labs, MRI…
Sweet spot
that enables
digital health!!
X
X
Hospital Devices
Steps, Pulse,
Sleep, location …
Wearables
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PROFUSA SENSOR PLATFORM DESIGN PRINCIPLES & TECHNOLOGY ENABLEMENT TO OWN THE
“SWEET SPOT”
CONFIDENTIAL 26
Accessibility
Data Value
Clinical Grade
Nice to have
Physicians Hospitals
Consumers Patients
Seamless Experience
Ease of Use
Data of
clinical
value
Current Offerings
Sweet spot that
enables digital
health!!
X
X
Clinical grade data
• Focus on clinical validated analytes
• CLI management use case
• CGM impact on diabetic health
Seamless experience
• >2 years longevity in humans
• Ease of sensor implantation
• Non-invasive data acquisition
Broad Access
• Low COGS
• Leverage currently available infrastructure – cellular network, cloud, bluetooth
• >150x more data for similar costs today in first 2 applications
Enablement Proof
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PROFUSA’S DATA CAN HELP TRANSFORM HEALTHCARE
27
First three
apps
Nbr Patients
Cost B USD
PAD WW
USA
200M1
20M1
200-
250B1
Diabetes WW
USA
Type I&II
415M1
30M1
Total
675B1
300B1
COPD WW
USA
200-330M2
24M3
>100B
50B
Profusa WW
USA
~1 B
70M
1,000B
>400B
Source: http://www.medpagetoday.com/cardiology/peripheralarterydisease/40803 http://www.reuters.com/article/sc-the-sage-group-idUSnBw096339a+100+BSW20150909 1 International Diabetes Foundation 2015 Atlas 2 GSK http://www.gsk.com/media/930531/copd-infographic.pdf 3 http://www.lung.org/assets/documents/research/copd-trend-report.pdf
How am I doing ? Real time information to optimize self-management
Am I paying based on Value? Increased Cost effectiveness
Can I prevent complications of chronic disease? Allocate & manage resources optimally across diseases
How can I demonstrate the value of my products? Develop Integrated patient care approaches as services
Can I identify high risk patients? Better know & manage population
Is he compliant? Improved
communication
Patient
Provider
Payer
Physicians
Industry
Care
Giver
Gvt
Insurer
How is my patient progressing? Improve & personalize care
Can I keep this patient home? Focus resources on care of higher need patients
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9 new single
sensors beyond O2 and glucose
1) lactate
2) potassium
3) sodium
4) chloride
5) calcium
6) pH
7) bicarbonate/CO2
8) urea
9) creatinine
Develop algorithms and
instrumentation to read
multiple signals accurately through skin
Sensing chemistries
Multi-plexed panels
NEW $7.5M DARPA GRANT FOR MULTI-ANALYTE SENSING
Metabolism Training optimization
Fatigue detection Trauma and sepsis
Blood Gases COPD Surgical trauma ICU monitoring Training optimization
Dehydration Renal Disease
Hydratation monitoring
CHF Training optimization
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TECHNOLOGY DEVELOPMENT PATHWAYS:
CONFIDENTIAL 29
Mobile
rechargeable
patches
Phone Readers
for Intermittent
Sensing
Thin-film,
Disposable
Blue-tooth from
Patch
Clothing-integrated readers
Helmet-based readers
Clinic-based
cabled reader
(O2 only)
TODAY TOMORROW
FUTURE
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GREAT BIG WORLD - THE DATA ECOSYSTEM
30
Sensor
luminescence
signal
Skin reader
patch Data processing Wireless IN
Patient
Smartphone Wireless IN Cellular or wireless
OUT
Cloud DB • Data
aggregation
• Algorithms • Event detection • Message push
Patient
Smartphone
UI
Physician/
Caregiver/
EMR/?
Pad/
Smartphone
Patient: • Biovotion • geolocation; • other physiologic
data (HR, HRV)
External: • App searches
• Climate alerts • iBeacons • Other
Patient
Action
Real-time
Biochemistry
Data
Aggregation Patient
Engagement
Patient
Behavior
Modification
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MONITORING HUMAN HEALTH IN A
WAY NEVER POSSIBLE BEFORE
• Tissue-integrating
biosensors
• Multiplexed
parameters
• Digital/mobile health
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PROFUSA’S MISSION IS TO MAKE OUR BODY’S CHEMISTRY EASILY ACCESSIBLE TO IMPROVE HEALTH AND WELLNESS.
WE ARE DEDICATED TO BECOMING THE LEADER IN REAL-TIME
BIOSENSORS THAT PROVIDE UNPRECEDENTED INSIGHTS INTO OUR
OVERALL HEALTH STATUS AND PERFORMANCE.
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