Opexa therapeutics corporate presentation november 21
PohlmanA_Capstone Presentation_20160422
1.
2. The Problem
“Dry” Age-Related Macular Degeneration
Slowly progressing thinning of the macula
Widespread oxidative damage known as Geographic Atrophy
Responsible for central vision loss
No approved treatments beyond supplements
Impedes critical activities such as reading, driving and
distinguishing faces
Incident rates increase with age
Number #1 cause of visual loss in developed countries in those over
50 years of age
3. The Proposed Solution
Encapsulated allogenic neural stem cells
Injected subretinally
Secrete paracrine factors known to
stimulate neuroprotection of existing cells
Removable post-efficacy or in safety
concern
Preserve visual acuity safely and
effectively
6. The Specifications: The Cells
The cells: HuCNS-SC® human neural stem cells
“Uses monoclonal antibodies against specific
cell surface markers to prospectively isolate
the population of neural stem cells from human
brain tissue, and then purify and expand these
cells into cryopreserved cell banks.”
-Stem Cells Inc.
Unmodified; no reprogramming
Highly purified
Non-controversial origin
Primary efficacy and safety already establishing
in Phase I/II studies
Cell Bank and full scale cGMP manufacturing
already achieved
7. The Capsules
Sodium Cellulose Sulfate consisting of polymers
of SCS and polydiallyldimethyl ammonium
chloride
Good biocompatibility for cells
3 x 0.75 mm in size and contain thousands of
cells each
Pores are big enough to allow nutrients to diffuse in and waste
products out
Permissive for the release of the therapeutic paracrine factors
Small enough to deny access to immune cells such as T-cells,
macrophages, and neutrophils
8. Mechanism of Action
• Degeneration of neural cells in the retina are hallmarks
to AMD
• Allogeneic RPE cells do not attach to Bruch’s membrane
efficiently
• Retinal Stem Cells can be found in the pigmented ciliary
margin
• Differentiate into retinal-specific cell types,
including rod photoreceptors, bipolar neurons, and
Müller glia
• To rescue retinal neurons from further degeneration this
therapy will rely on the growths factors involved in the
development and maintenance of retinal neurons
• Transforming growth factor (TGF-beta 3)
• Fibroblast growth factor (FGF)
• Epidermal growth factor (EGF)
• Hepatocyte growth factor/scatter factor (HGF/SF)
9. Why Encapsulate?
Allogenic “one size fits all” convenience
No need for immunosuppressive
therapy
Can be frozen
Validated shipping method; cells
have lasted up to 5 years
Preferred by regulators
Robust; can be delivered through
needles
Capsules have been tested in clinical
trials and were efficacious and safe
in the body for up to two years
Can be localized to site of
treatment
Higher accuracy
Longer distribution
Lower doses
Lack of fibrous overgrowth
10. Alternatives Considered
Approach Reason for Rejection
Neuroreplacement
Huge amounts of competitors are using this approach; concerns about
immune rejection; high cost, low convenience of autologous
treatments; cell migration and tumorigenic capabilities; requires
larger amount of starting materials. Also muddying a replacement
approach is the precision of donor cell integration, the vascular
complexity, and the complex mechanisms of secondary synaptic
rewiring
ESC Controversial origins
iPSC
New, early in human use; delayed market entry; unknown regulatory
obstacles; QC Concerns and technical challenges including
pseudogenes, regions rich in AT, and genes too long to sequence due to
software considerations, and potential server of other technical fails
Alginate capsules Cannot be frozen; limits shipping and distribution options
Combination w non-stem cell
progenitor cells
Requires immunosuppressive therapy or autologous approach
• Decorating the capsules with additional growth factors
• Genetically modifying cells to enhance growth factor expression
• Using a different location for delivery: intravitreal, intraretinal, or on the ciliary margin where RSCs are located
• Tandem approach with non-stem cell progenitor cells could boost the paracrine factor efficacy
11. Implementation: Pros and Cons
Pros:
Ease of manufacture and distribute
Capsule materials are easily sourced and cryopreserved
Large scale cGMP manufacturing has been achieved for both
components achieved
AustriaNova offers Proof of Concept services
Less uncertainty results in faster time to market and lower
costs
Cons:
Estimated have regenerative treatments costing as much as
$512K per treatment
Licensing must be favorably resolved
12. Current Uses
HuCNS-SC® are used investigationally for spinal
cord injury, Pelizaeus-Merzbacher Disease, and
Neuronal Ceroid Lipofuscinosis
Stem cells + microenvironments such as
encapsulation or a hydrogel matrix are being
researched for cardiovascular disease, Huntington’s
Disease, ALS, and Parkinson’s
Cell encapsulation already used for indications
including diabetes, cancer, cardiovascular,
monoclonal antibody therapies, and liver failure
Future use: other retinal disorders like Retinitis
Pigmentosa or Stargardts or possibly even
Alzheimers
14. Market Considerations: Pros and Cons
Pros
Unmet Need
National economic policy supporting regenerative innovation
and adoption
Japan’s defined and expedited regenerative regulatory
channels
World’s oldest population
Cons:
Densely packed research space: race to entry
Other investigational treatments in Phase II
Expensive to produce or consume
Signs of a shift in economic policy
Aging population=dwindling tax base that pays for healthcare
16. The Competition
Treatment Competitor Method/Strategy Delivery
Route/frequency if
Indicated
Stage of
Development
Lampalizumab Roche Biologic: Anti-factor D
monoclonal antibody
Intravitreal Injection Phase III
GSK933776 GSK Biologic: Humanized
mouse IgG1 monoclonal
antibody target FC
receptor binding
IV Phase II
MacuCLEAR MC-1101
1.0%
MacuClear Inc. Drug designed to reduce
choroidal blood flow
Topical: Drops/BID Phase II/III
Bone Marrow CD34
Stem cells
UC-Davis Regenerative:
neuroreplacement or
neuroprotection
Single Intravitreal
injection, 200,000 cells
Phase I
hESC derived RPE Cells Astrellas Pharma Regenerative:
neuroreplacement or
neuroprotection
Single Sub-retinal
injection
Phase I/II
Autologous Bone
Marrow Stem Cells
Retinal Associates of
South Florida/ MD Stem
Cells
Regenerative:
neuroreplacement or
neuroprotection
Injections of BMSC
retrobulbar, subtenon
and IV
Unspecified
HuCNS-SC Stem Cells Inc Regenerative:
neuroreplacement
Single Sub Retinal
injection. 1 million cells
Phase I/II
Brimonidine Allergan Drug for neuroprotection
through alpha-
adrenergic agonist
Eight Intravitreal
Implants
Phase II
LEAD Laser Center for Eye Research
Australia
Procedure applied to
early stage druse
2RT Nanaosecond Laser Unsepcified
Autologous iPSC Cellular Dynamics Inc.:
a Fujifilm Group
Company
Regenerative:
neuroreplacement or
neuroprotection
Implanted on scaffolding Pre-clinical
18. Strategic Analysis: Pros and Cons
Pros:
Fujifilm is dedicate to regenerative medicine and AMD
Series of acquisitions: Diosynth Biotech, Kalon, J-TEC, and CDI
Has capital and capabilities in development, clinical, regulatory,
manufacturing, quality, HR, finance, legal, project management and
marketing
Japanese Tissue Engineering Company has 3 approved regenerative
treatments using somatic stem cells
Cons:
J-TEC strategy is tissue engineering
Have process for autologous stem cells, not allogenic
No stake in IP; licensing needed
No experience with encapsulation
Tech could get lost within expansive portfolio
19. Summary
Technology has merit
Existing IP
Established manufacturing
But there is a long way to go
Early stage
Research space is crowded
What if other approaches are faster, safer or more effective?
Japanese market has strong indicators but
Political and regulatory advantages are temporary and reproducible by competitors
Relies on government’s long-term ability to pay
Fujifilm and J-TEC offers capital and experience
Valuable but not unique
Does not match J-TEC’s corporate strategy
May get lost in portfolio
20. Final Recommendation
Do not invest in this technology proposal
Consider alternatives to solve the dry AMD problem
Start with Japan to get earliest market entry but, once
proof of concept is established and regulatory processes
more clearly defined, pursue multinational approval and
sales
Look at companies with later stage solutions
Consider acquiring entire company to maintain
experience and internal support for the tech
Contemplate buying a competitor to narrow the field
Thank you very much for your time and attention!
Editor's Notes
What is dry macular degeneration, specifically geographic atrophy. Incidence rate? What are its consequences? Mention the proposed solution:
Background/specifications
Do I need technical specs? Search patents? Which growth factors, paracrine?
Presence of Stem cells in the retina
Injection sub-retinally
Which growth factors
How long will treatment take?
Need to repeat?
How will capsules be monitored? Way to trace one of the growth factors?
Why it will work!