CAP-1002 for Advanced DMD: A New Treatment Option
Transcript of CAP-1002 for Advanced DMD: A New Treatment Option
CAP-1002 for Advanced DMD: A New Treatment Option
October 24, 2019NASDAQ: CAPR
Forward-Looking Statements
2
Statements in this press release regarding the efficacy, safety, and intended utilization of Capricor's product candidates; the initiation,conduct, size, timing and results of discovery efforts and clinical trials; the pace of enrollment of clinical trials; plans regardingregulatory filings, future research and clinical trials; regulatory developments involving products, including the ability to obtainregulatory approvals or otherwise bring products to market; plans regarding current and future collaborative activities and theownership of commercial rights; scope, duration, validity and enforceability of intellectual property rights; future royalty streams,revenue projections; expectations with respect to the expected use of proceeds from the recently completed offerings and theanticipated effects of the offerings, and any other statements about Capricor's management team's future expectations, beliefs, goals,plans or prospects constitute forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995.Any statements that are not statements of historical fact (including statements containing the words "believes," "plans," "could,""anticipates," "expects," "estimates," "should," "target," "will," "would" and similar expressions) should also be considered to be forward-looking statements. There are a number of important factors that could cause actual results or events to differ materially from thoseindicated by such forward-looking statements. More information about these and other risks that may impact Capricor's business is setforth in Capricor's Annual Report on Form 10-K for the year ended December 31, 2018 as filed with the Securities and ExchangeCommission on March 29, 2019, and as amended by its Amendment No. 1 to Annual Report on Form 10-K/A filed with the Securitiesand Exchange Commission on April 1, 2019, in its Quarterly Report on Form 10-Q for the quarterly period ended June 30, 2019, asfiled with the Securities and Exchange Commission on August 8, 2019, and in its Registration Statement on Form S-3 as filed with theSecurities and Exchange Commission on October 24, 2018, and as amended by its Amendment No. 1 to Form S-3 filed with theSecurities and Exchange Commission on July 17, 2019, together with prospectus supplements thereto. All forward-looking statementsin this press release are based on information available to Capricor as of the date hereof, and Capricor assumes no obligation toupdate these forward-looking statements.
CAP-1002 is an Investigational New Drug and is not approved for any indications. CAP-2003 has not yet been approved for clinicalinvestigation.
‒ Craig McDonald, M.D., is professor and chair of the Department of Physical Medicine and Rehabilitation and Director of the Neuromuscular Disease Clinics at the University of California, Davis. Dr. McDonald is an internationally recognized expert in the clinical management and rehabilitation of neuromuscular diseases including DMD. He is the national PI of the Capricor HOPE-2 Trial.
‒ Linda Marbán, Ph.D. – Chief Executive Officer, Capricor Therapeutics, Inc.
‒ AJ Bergmann, Chief Financial Officer, Capricor Therapeutics, Inc.
Call Participants
3
Dystrophin Deficient Muscular Dystrophy: Diagnosis, Natural History and Current Therapies
Craig McDonald, MD Professor and Chair of PM&R
Professor of PediatricsStudy Chair CINRG Duchenne Natural History Study
University of California Davis HealthSacramento, CA
4
Disclosures
‣ Consulting work on Duchenne muscular dystrophy clinical trials for – Capricor Therapeutics, Inc.– Catabasis Pharmaceuticals, Inc.– PTC Therapeutics– Sarepta– Prosensa– GSK– Pfizer– Eli Lilly– Bristol Myers Squib– Italfarmaco– Mitobridge– Cardero Therapeutics
5
Duchenne Muscular Dystrophy The most common muscular dystrophy of childhood
1 in 3500-5500 boys BMD is about 1 in 18000-35000
X-linked recessive inheritance (Xp21.2) males affected & females carriers However, 1/3 cases are de novo mutation
Caused by mutation of dystrophin gene
Dystrophin gene is the largest gene in genome: 2.4 mb 14 kb mRNA coding sequence 3685 amino acid 427kDa protein 6
Duchenne Muscular Dystrophy Is a Devastating Progressive Disease with Significant Unmet Need
‣ Rare recessive x-linked disorder caused by mutation in the DMDgene
‣ Leads to dystrophin deficiency in muscle tissue and subsequently chronic activation of NF-kB
‣ Progressive disease that leads to devastating deteriorating muscle strength and early death
‣ Only supportive treatments are available– Physical therapy– Orthopedic Surgery for contractures and scoliosis– Assisted ventilation– Heart failure management (e.g., afterload reduction) – Off-label / labeled use of corticosteroids– Eteplirsen in the US for exon-51 mutations – Ataluren in the EU for nonsense mutations
7
Disease Progression Is Characterized by Muscle Damage and Replacement of Muscle Fibers with Fat Infiltration and Sclerosis, Resulting in Loss of Function
Normal muscle tissue Muscle tissue 19 year old DMD patient Post-Mortem
Fat infiltration, sclerotic changes and loss of muscle
fibers
Lack of dystrophin cause shearing of the sarcolemma and activation of NF-kB,
increasing cellular damage and muscle fiber loss
Progressive loss of muscle fibers and replacement of functional muscle units by
fat infiltration and sclerosis
Loss of function; walking capacity preserved in spite of significant loss of
muscle strength due to ‣ Reserve capacity in muscle function‣ Biomechanical compensations
8
Pathophysiology of DMD
Gene abnormality at Xp21 loci ↓
Absence of dystrophin↓
Muscle membrane injury↓
Cascade of events leading to muscle fiber injury and degradation↓
Cycles of degeneration ←→ regeneration↓
Cell death (replacement by fat & connective tissue)
9
DMD pathomechanism
Adapted fromEngvall & Wewer (2003) FASEB 17:1579
Structural defect
Membrane instability
Apoptosis / Necrosis
Inflammation
Fibrosis Fiber Death
10
From: physrev.physiology.org
Dystrophin Gene & Protein
• 8 different promoters• Differential tissue expression of dystrophin isoforms
• 79 exons (0.6% of gene) and most of the gene composed of non-coding introns
• Dystrophin protein organization:• N-terminal actin binding domain• 24 spectrin like repeats in the rod domain• Cysteine rich and c-terminal
• Dystrophin is an important component of DAG complex at muscle membrane• Muscle membrane stability• Cell signalling pathway
11
Duchenne dystrophy =Absence of dystrophinComplete loss of function
Becker dystrophy = Present, but abnormalPartial loss of function
Large in-frame deletionsCan be clinically very mild, asymptomatic BMD (hyperCKemia)
12
Types of mutations in Dystrophinopathies Deletions account for majority of mutations
~65-72% of DMD~85 % of BMDmost in “hotspot” region of exon 45-53
Point mutations and splicing region mutations~25-30%most result in nonsense/frameshift (stop); rare missense
Duplications~5-10%in minor “hotspot” region of exon 2-20
Premature stop codon mutation~13-15% 13
Reading Frame Rule
Out-of-frame mutations result in disruption of ORF→ premature stop codon→ truncated dystrophin/non-functional protein→ Absence of dystrophin→ DMD
In-frame mutations that preserve the ORF→ replacements of amino acids in dystrophin→ partially functional protein→ BMD
Majority of DMD and BMD follow this rule 14
15
51 5352 54 5655 57 58 59 60 61
504948474645444342414039
62 63 64 65 66 67 68 69 70 71 72 73
77 78 79
27 28 29 30 31 32 33 34 35 36 37 38
26252423
74 75 76
22
8765431
21201918171615
9 10 11 12 13 14
DP427 muscle, neurons
DP260 retina
DP140 neurons, kidney
DP116 Schwann cells
DP71 - 45 universal
Deletions that disrupt the codon reading frame produce severe Duchenne dystrophy2
16
51 5352 54 5655 57 58 59 60 61
504948474645444342414039
62 63 64 65 66 67 68 69 70 71 72 73
77 78 79
27 28 29 30 31 32 33 34 35 36 37 38
26252423
74 75 76
22
8765431
21201918171615
9 10 11 12 13 14
DP427 muscle, neurons
DP260 retina
DP140 neurons, kidney
DP116 Schwann cells
DP71 - 45 universal
Deletions that do not disrupt the codon reading frame produce
mild Becker dystrophy2
DMD ↔ outlier DMD ↔ BMDAbsent/nonfunctional dystrophin proteinsevere phenotype: DMD
Smaller/partially functional/reduced amount of dystrophinmild phenotype: BMD
Mutations can result in phenotype within the spectrum Genotype (mutation characterization)/phenotype
correlation is not perfect nor easy Clinical picture is better at predicting prognosis and
disease progression; and immunochemical analysis of dystrophin rarely necessary
17
DMD vs. BMD• Immunostaining using Antibodies to different dystrophin
epitopes
• Antibody to C-terminus:• Absent staining: DMD• Present staining: BMD
Antibody to Rod domain may be positive in DMD
• Western Blot Analysis (using C-terminal):• < 2-3% quantity → Duchenne phenotype• 5 – 20% quantity → “Outlier” phenotype• 20 –80% quantity → Becker phenotype• or 90 – 100% &
abnormal structure/size from Novocastra18
DMD vs. BMDDuchenne Becker
Clinical Onset 2 – 6 years 4 – 12 (or later)
Age to wheelchair 7-13 years (no steroids)(-) steroids 10 years(+) steroids 13.5 years
> 16 years(often in 3rd
decade)
Restrictive Lung Disease
Progresses to severe RLD(2nd decade)
Mild severity RLD
Cardiomyopathy Severe (mid to late 2nd
decade)
Severe (in 3rd to 4th
decade)Scoliosis Severe in 80-90% Rare
Life Expectancy 17 – 25 (non-vent)30’s (vent)
4th to 6th decade19
Interventions that have impacted the natural history of disease progression and survival in DMD
1. Glucocorticoids (GC, still off-label in EU despite proven efficacy)
2. Management of spine deformitya) Glucocorticoids
b) Timely spine surgery for curves >30–40 degrees
3. Respiratory managementa) Airway clearance strategies / Mech. cough assistance
b) Non-invasive ventilation
4. Cardiac managementa) Early afterload reduction (e.g. ACE inhibitors)
b) Recognition and management of heart failure
5. Novel disease-modifying therapies20
0 5 10 15 20 25 30Years
Stages of DMD are captured with the use of multiple clinical endpoints
Loss of Ambulation
Death
Impaired ability toHop Run Jump Rise from Floor
Loss of Rise from
Floor
Loss of Stair Climb
Stages of DMD Disease Progression
Loss of Upper Limb
Overhead reach
21
Late Ambulatory Stage (Rapid Functional decline)
Delayed & Impaired Acquisition of Milestones / Motor Skills
Early Ambulatory Stage (Modest functional decline)
Late Non-Ambulatory Stage
Early Non-Ambulatory Stage
Loss of Upper LimbHand to Mouth
Non-invasive Ventilation (Nocturnal)
Loss of Upper LimbDistal Hand
Non-invasive Ventilation (Diurnal)
AGE
BayleyNSAA
TFTs____________NSAA TFTs6MWT100 m. QMT
NSAATFTs. 6MWT. PUL100 m. PFTs QMT
PFTsPUL
EK Scale. QMT
PFTsPUL
EK Scale
ExampleClinical Endpoints
0 5 10 15 20 25 30Years
Stages of DMD are captured with the use of multiple clinical endpoints
Impaired ability toHop Run Jump Rise from Floor
Stages of DMD Disease Progression
22
Delayed & Impaired Acquisition of Milestones / Motor Skills
AGE
BayleyNSAA
TFTs____________
ExampleClinical Endpoints
Motor and Cognitive Assessment of Infants and Young Boys with Duchenne Muscular Dystrophy:
Results from the Muscular Dystrophy Association DMD Clinical Research Network. Connolly et al. (n=25; 1.8±0.8 years)
23
24
NSAA Latent Class Trajectory (UK NSAA)(Muntoni et al.
25
Maturation, stability, and decline on hop and jump
• Maturation phase is similar across cluster classes • Proportion of patients who can hop and jump is highest in patients with milder trajectories • Decline phrase is separated by cluster class Muntoni et al. submitted
26
Performance on rise from floor and run NSAA items by latent trajectory class
A
Proportion of patients with NSAA item score > 0
27
Mean of individual patient fitted curves with
higher and lower quartiles
Muntoni et al, WMS, 2018Signorovitch et al, ISPOR, 2018
NSAA Score at
mean peak
AGE (years)
50% of mean peak NSAA
27
23
30
30
20
10
1086 12 1614
6.8
7.85.9
Age at mean peak NSAA score
Upper quartile
Lower quartileN
SAA
Scor
e
28
0 5 10 15 20 25 30Years
Stages of DMD are captured with the use of multiple clinical endpoints
Loss of Ambulation
Loss of Rise from
Floor
Loss of Stair Climb
Stages of DMD Disease Progression
29
Late Ambulatory Stage (Rapid Functional decline)
Early Ambulatory Stage (Modest functional decline)
AGE
____________NSAA TFTs6MWT100 m. QMTNSAA
TFTs. 6MWT. PUL100 m. PFTs QMT
ExampleClinical Endpoints
CINRG Data: Loss of Ambulation(all mutation subtypes and steroid use, N = 309)
0.00
0.25
0.50
0.75
1.00
0 5 10 15 20Age (years)
<30 days cumulative GC exp1 year or greater cumulative GC exposure
Kaplan-Meier survival estimates
> 1 year steroids:• Median LOA = 13.3 ± 0.3 yrs• 95% CI = 12.5 – 14 yrs
< 1 month steroids:• Median LOA = 9.8 ± 0.2 yrs• 95% CI = 9.3-10.1 yrs• (n=309)
30
There Has Been a Changing Natural History in DMD Over the Last 4 Decades Affecting Survival1960s
No Treatment
Passamano, et al. Acta Myol. 2012;31(2):121-125. Eagle, et al. Neuromuscul Disord. 2007;17(6):470-475.
1970-1990 Spine Surgery & Ventilation
31
DMD Survival Affected Primarily by Ventilation
• Ventilation was recognized as a main intervention affecting survival
• Ventilated median survival = 27.0 yr
• Without ventilation = 19.0 yr
Passamano, et al. Acta Myol. 2012;31(2):121-125.
• Ventilation was recognized as a main intervention affecting survival
• Ventilated mean survival = 27.9 yr(range, 23 - 38.6 yr)
• Without ventilation = 17.7 yr(range, 11.6-27.5 yr)
Rall and Grimm: Acta Myol. 2012 Oct;31(2):117-20.
32
There Has Been a Changing Natural History in DMD Over the Last 4 Decades Affecting Survival
1980s – Present Glucocorticoids/Steroids
Schram, et al. J Am Coll Cardiol. 2013;61(9):948-954. Duboc D, et al. Am Heart J. 2007;154(3):596-602.
2000 – PresentAfterload Reduction With
ACE Inhibitors
33
Glucocorticoids target NF-κB which is Chronically Activated in DMD
• miRNAs in muscle microenvironments cause variable dystrophin in muscular dystrophy
• miRNAs are elevated in dystrophic myofibers and increase with disease severity
• Inflammatory cytokines induce miRNAs, and antiinflammatories block their expression
• miRNAs provide a precision medicine target in dystrophy and exon skipping
34
35
8 Milestones that are clinically meaningful in DMD (based on PODCI Transfer / Basic Mobility)
Standfrom supine < 5 sec
Stand from supine 5-10 sec
Stand from supine > 10 sec or Lost Risefrom Floor
Lost4-StairClimb
Still Amb
Non-AmbFull Overhead reach
Lost Full Overhead Reach(Retains hand to mouth)
Lost Hand to Mouth(RetainsHand Function)
Lost Lost Hand Function(Brooke 6) 36
37
38
39
0 5 10 15 20 25 30Years
Stages of DMD are captured with the use of multiple clinical endpoints
Death
Stages of DMD Disease Progression
Loss of Upper Limb
Overhead reach
40
Late Non-Ambulatory Stage
Early Non-Ambulatory Stage
Loss of Upper LimbHand to Mouth
Non-invasive Ventilation (Nocturnal)
Loss of Upper LimbDistal Hand
Non-invasive Ventilation (Diurnal)
AGE
PFTsPROM PUL
EK Scale. QMT
PFTsPROM PULEK Scale
ExampleClinical Endpoints
PPMD Patient and Caregiver
Survey
41
Loss of Key Upper Limb Milestones prolonged with steroids by 3-5 years (McDonald et al. Lancet 2018)
42
McDonald et al. Lancet, 201843
DMD survival is impacted primarily by ventilation
1. Rall S, Grimm T. Acta Myol, 2012;31:117-1202. Passamano L, et al. Acta Myol, 2012;31:121-125
StudyMedian survival, years (range)
Ventilated Not ventilatedRall & Grimm1 27.0 (20.2-33.8) 19.0 (17.7-20.3)Passamano et al 2 27.9 (23-38.6) 17.7 (22.6-27.5)
0 5 10 15 20 25 30 35 400.0
0.2
0.4
0.6
0.8
1.0
Age (years)
Prop
ortio
n su
rviv
ing
Ventilated (n = 44)Non-ventilated (n = 22)
44
Despite advances in care, respiratory and cardiac complications remain the leading causes of death in DMD
#From the total pool of 340 eligible patients (minus Indian cohort due to differences in standard of care) 32 died over the 8 year study period.Unpublished CINRG data.47%
25% 28%
0
10
20
30
40
50
Respiratoryfailure
Cardiac failure Other
Perc
enta
ge o
f dea
ths n = 32
Causes of death in CINRG-DNHS
#From the total pool of 340 eligible patients (minus Indian cohort due to differences in standard of care) 32 died over the 8 year study period.Unpublished CINRG data.
45
Changes in ambulatory milestones correlate to severity of respiratory function decline
FVC%p 80%= Lower limit of
normal1-4
FVC%p50%FVC%p40%FVC%p30%
Loss of ambulation1
Loss of overhead reach1,8#
Loss of self-feeding1,8#
Complete loss of hand function1,8#
Start of respiratory function decline1
Severe respiratory Insufficiency1,5,6
Insufficient cough
Moderate respiratory insufficiency1,5,6
Respiratory function decline (FVC%p)1
Respiratory clinical milestone
Lower limb clinical milestone
Upper limb clinical milestone
#Brooke score of upper limb function = 3, 5 and 6, respectively.6%p: percent predicted; FVC: forced vital capacity.1. Mayer OH, et al. US Neurology 2017;13:35–41; 2. Finder JD, et al. Am J Respir Crit Care Med 2017;196:512-9; 3. Finder JD, et al. Am J Respir Crit Care Med 2004;170:456-65;4. Johnson JD and Theurer WM. Am Fam Physician 2014;89:359-66; 5. Humbertclaude V, et al. Eur J Paediatr Neurol 2012;16:149-60; 6. Mayer OH, et al. J Neuromuscul Dis 2017;4:189-98; 7. Bushby K, et al. Lancet Neurol 2010;9:177-89; 8. Brooke MH, et al. Neurology 1989;39475-481.
46
Clinical thresholds of respiratory function can guide patient management
1. Mayer OH et al. US Neurology 2017;13:35-41; 2. Bushby K, et al. Lancet Neurol 2010;9:177-89; 3. Birnkrant DJ, et al. Lancet Neurol 2018;17:347-61. 4. Sawnani, H. et al. J Pediatr 2015;166:640-5.
5 10 20 25 3015Age (years)
Resp
irato
ry fu
nctio
n te
st
100
80
60
40
0
50
30
Daily in-exsufflator / airway clearanceNight time ventilation
Mouthpiece ventilation
Raised volume Rx in-exsufflator
Continuous ventilation
For every 10% reduction in FVC, odds of hypoventilation increase by 20%
n = 334
Change in PEF%p and FVC%p with age
PEF%pFVC%p
47
Progressive muscle weakness in DMD leads to a sequential loss of function
• 1. Mayer OH, et al. US Neurology 2017;13:35–41; 2. Finder JD, et al. Am J Respir Crit Care Med;Article in Press 2017; 3. Finder JD, et al. Am J Respir Crit Care Med 2004;170:456-65; 4. Johnson JD and Theurer WM. Am Fam Physician 2014;89:359-66; 5. Humbertclaude V, et al. Eur J Paediatr Neurol 2012;16:149-60; 6. Mayer OH, et al. J Neuromuscul Dis 2017;4:189-98; 7. Bushby K, et al. Lancet Neurol 2010;9:177-89; 8. McDonald CM, et al. Neuromuscular Disorders 2016;26:473-80; 9. Brooke MH, et al. Neurology 1989;39475-481.
Respiratory muscle weakness
Low lung volumes
Nocturnal hypoventilation
Poor airwayclearance
Loss of ambulation
Diurnalhypoventilation
Overhead motion
No overhead motion
Hand to mouth
No hand to mouth
Respiratory Lower extremityUpper extremity
48
Clinical management of respiratory function decline in DMD
• Mayer OH, et al. US Neurology 2017;13:35–41.
Respiratory muscle weakness
Low lung volumes
Nocturnal hypoventilation
Poor airway clearance
Diurnal hypoventilation
49
Clinical management of respiratory function decline in DMD
• 1. Mayer OH, et al. US Neurology 2017;13:35–41; 2. Birnkrant DJ, et al. Lancet Neurol 2018;17:347-61.
Respiratory muscle weakness
Low lung volumes
Nocturnal hypoventilation
Poor airway clearance
Diurnal hypoventilation
Hyperinsufflation Rx
Cough assist / Airway clearance
50
Clinical management of respiratory function decline in DMD
• 1. Mayer OH, et al. US Neurology 2017;13:35–41; 2. Birnkrant DJ, et al. Lancet Neurol 2018;17:347-61.
Respiratory muscle weakness
Low lung volumes
Nocturnal hypoventilation
Poor airway clearance
Diurnal hypoventilation
Hyperinsufflation Rx
Cough assist / Airway clearance
Nasal non-invasive ventilation
Mouthpiece “Sip” ventilation
51
Key Learnings from Natural History in DMD
There is linkage of the timing of functional deterioration and loss of milestones with later disease course in DMD
52
Age at loss of ambulation is linked to age at loss of hand to mouth function
53
Age at Loss of Ambulation Predicts Age at Onset of 1 liter FVC (CINRG Data)
FVC < 1 liter increases risk of death
HR (95% CI)
4.1(1.3, 13.1)
0.00
0.25
0.50
0.75
1.00
0 10 20 30Age (years)
Proportion Reaching FVC of 1L
Ambulatory patients age 9-18 at study entry
Number at RiskLOA <10 years 53 53 46 22 3 1 0 0LOA 13 years or still walking 208 208 132 71 27 7 0 0
LOA <10 years
LOA 13 years or still walking
McDonald et al. Lancet, 2018 54
Median Absolute FVC (Liters) by Age and GC use. Peak in median FVC is shown and
the point at which the median absolute FVC value drops below 1 liter.
McDonald et al. Neuromuscular Disorders, 201855
Steroid use and all-cause mortality in DMD
• Forty-five deaths occurred over almost 10 years of follow-up
• The odds ratio for death for those on GC treatment ≥ 1 year showed a reduced death risk by over 50%
• (odds ratio 0.47, 95% CI 0.22-1.00, p = 0.05).
McDonald et al. Lancet, 201856
0 1 2 3 4 5 6
No useful function of hands.
Can use hands to hold pen or pick up a coin ordrive a powered Chair
Can raise 1 or 2 hands to mouth but cannot raise a cup with a 200g weight in it to mouth
Can raise standardized plastic cup with 200g weight in it to mouth using both hands if necessary
Can raise both arms to shoulder height simultaneously w/ or w/o compensation
Can raise both arms simultaneously above head only by flexing the elbow
Full overhead reach without compensation
Performance of the Upper Limb (Entry Items)
Target Population
57
Primary Efficacy Endpoint: PUL Assessment to Assess Skeletal Muscle Primary Efficacy Endpoint:
Performance of the Upper Limb (PUL: v1.2) to Assess Skeletal Muscle
58
PUL v.2.0:• 3-point response scale - more robust and reproducible than v1.2• Compensatory strategies allowed to achieve tasks (not allowed in v1.2)• V2.0: better able to detect change at 12 months at all levels of ability*
*Mayhew et al, 2019; Pane et al, 2018
Static positioning leads to contractures in DMD
59
Scoliosis in DMD
Without steroids80-90% require fusion
With steroids20-30% require fusion
60
Cardiomyopathy in DMD• Clinically significant cardiomyopathy rare before age 10; MRI changes
common• Fibrosis posterior wall left ventricle• Myocardium exhibits abnormal contractility• Arrythmias
• Treatment: Early ACE Inhibitors; Evidence Class Ia• enalapril, lisinopril, perindopril
• ARBs (Losartan)• Beta Blockers (metoprolol, carvedilol)• Aldosterone receptor antagonists (Spironolactone, eplerenone)• Diuretics (Furosemide, Thiazides)
61
Potential for Combination Treatments in DMD
‣ Six main categories for therapeutic targets for DMD
‣ One addresses primary genetic defect; rest address downstream aspects of the pathogenesis
‣ Targeting any single pathway may be an approvable mono-therapy
‣ Future treatment paradigm may involve targeting multiple pathways to have greater patient impact
62
Increasing muscle mass
and regeneration
Decreasing inflammation and fibrosis
Correcting perturbations
in Calcium handling
Mitochondria dysfunction
Replacement of dystrophin/
utrophin
Correcting blood flow regulation
DMD Therapeutic
Development
Development of State-of-the-Art Combination Therapies for Duchenne Muscular Dystrophy
Potential for Combination Treatments in DMD
63
Increasing muscle mass
and regeneration
Decreasing inflammation and fibrosis
Correcting perturbations
in Calcium handling
Mitochondria dysfunction
Replacement of dystrophin/
utrophin
Correcting blood flow regulation
DMD Therapeutic
Development
‣ NF-κB Is Chronically Activated in DMD
‣ Prednisone / Prednisolone‣ Deflazacort (Emflaza, PTC)
‣ Current Trials:‣ Vamorolone (ReveraGen)
– Dissociative steroids (decreased Aes)
‣ Edasalonexent (Catabasis)– covalently linked salicylic acid (ASA) and
docosahexaenoic acid (DHA), – synergistically leverages the ability of both
compounds to intracellularly inhibit activated NF-κB
‣ Givinostat (Italfarmaco)‣ ? CAP 1002
Potential for Combination Treatments in DMD
64
Increasing muscle mass
and regeneration
Decreasing inflammation and fibrosis
Correcting perturbations
in Calcium handling
Mitochondria dysfunction
Replacement of dystrophin/
utrophin
Correcting blood flow regulation
DMD Therapeutic
Development
‣ Therapeutics targeting dystrophin restoration
‣ Antisense Oligonucleotides‣ PMOs‣ PPMOs‣ AAV microdystrophin gene
therapy
Potential for Combination Treatments in DMD
‣Myostatin Inhibitors
‣ Investigational
‣Pfizer (IV Q month)
‣Roche (SQ Q week)
65
Increasing muscle mass
and regeneration
Decreasing inflammation and fibrosis
Correcting perturbations
in Calcium handling
Mitochondria dysfunction
Replacement of dystrophin/
utrophin
Correcting blood flow regulation
DMD Therapeutic
Development
Development of State-of-the-Art Combination Therapies for Duchenne Muscular Dystrophy
Potential for Combination Treatments in DMD
66
Increasing muscle mass
and regeneration
Decreasing inflammation and fibrosis
Correcting perturbations
in Calcium handling
Mitochondria dysfunction
Replacement of dystrophin/
utrophin
Correcting blood flow regulation
DMD Therapeutic
Development
‣ Therapeutics targeting mitochondrial health
‣ Idebenone (Santhera)‣ PPAR𝛅𝛅 agonist (Astellas)‣ (+)-epicatechin (Cardero)
‣ ? CAP-1002
Acknowledgments
UC Davis Neuromuscular Medicine & Rehabilitation Research Center and CINRG Network
67
Linda Marbán, Ph.D.Capricor CEO
68
Treatment Options for DMD are Limited
69
Challenges EXONDYS 51 –13% of
DMD population Gene therapy Steroids have adverse
side-effects NF-kB inhibition may
not be enough
Exon Skipping Gene therapy Utrophin NF-kB Steroids
Immunomodulatory Anti-fibrotic Pro-regenerative Cellular Energy
We believe CAP-1002 may be used synergistically with other therapeutics aimed to treat DMD
Capricor’s Regulatory Designations - DMD
Rare Pediatric Disease Designation
Orphan Drug Designation
RMAT Designation
Goal: to facilitate efficient development and expedite review of a drug
Similar to breakthrough therapy designation: RMAT provides benefits that include more
frequent meetings with FDA to discuss the development plan for the product candidate
eligibility for rolling review and priority review Products may also be eligible for accelerated
approval on the basis of a surrogate or intermediate
endpoint reasonably likely to predict long-term clinical benefit
reliance upon data obtained from a meaningful number of sites
70
December 2018 RMAT Meeting Summary
71
Interdisciplinary meeting with FDA (CBER)
FDA suggested using PUL v2.0 as primary efficacy endpoint– Interim analysis was positive for PUL 2.0
FDA stated that the trial would need to show:– Evidence of clinically meaningful changes in the PUL– Stabilization or improvement in other measures of skeletal, respiratory
and/or cardiac function Interim analysis for HOPE-2 shows all of these improving in treated
patients over placebo
FDA advised CAPR to request an end of phase meeting after completion of the trial to determine whether HOPE-2 could serve as the registration study.
– Discussions with FDA are ongoing regarding CAP-1002 and DMD
‒ CAP-1002 is a biologic consisting of allogeneic cardiosphere-derived cells (CDCs)
Manufactured from donated heart muscle
Does not act by “stemness” – the cellsdo not engraft into host tissue
MOA: cells secrete exosomes: Contain miRNA, non-coding RNAs and proteins Internalized by target cells Stimulate diverse and lasting changes in cellular behavior 3 known miRNAs drive CAP-1002 potency
CAP-1002 has been investigated in multiple independent clinical trials and more than 150 human subjects
Capricor’s CAP-1002 Technology
72
73
CAP-1002 Manufacturing
CSps CDCs Wash Formulate Fill CAP-1002
‒ CAP-1002 is manufactured from donor hearts via a proprietary process
‒ Clinical trial material currently produced at Capricor facility
‒ High-yield process in advanced development
‒ Previous 3-year collaboration with Janssen Biotech focused on chemistry, manufacturing and controls (CMC)
Design: Phase II, randomized, double-blind, placebo-controlled trial in participants with DMD and reduced skeletal muscle function
Objective: Evaluate safety and efficacy of CAP-1002
Dosing Regimen: 150M cells delivered every 3 months
Delivery: Intravenous infusion Sites: approximately 9 sites (USA)
HOPE-2 Clinical Trial Design
https://www.clinicaltrials.gov/ct2/show/study/NCT03406780 74
HOPE-2 Interim Analysis Safety Results
75
A total of 57 infusions were performed in HOPE-2 as of July 31, 2019 With the exception of two serious adverse events1,2 in the form of
immediate allergic reactions, no safety signals were identified To reduce the risk of future adverse events, Capricor initiated a
commonly used pre-medication regimen including oral steroids and antihistamines Since initiation of the pre-treatment regimen, approximately
40 infusions of CAP-1002 or placebo have been administered with only one serious adverse event1 reported that required an overnight observation of the patient.
1Assessed as related to either CAP-1002 or placebo administration2One SAE each in HOPE-2 and HOPE-OLE
HOPE-2 Interim Analysis Data Summary
76
Skeletal: Mid-Level PUL 2.0 at 6 months (p=0.0612) Shoulder + Mid + Distal Level PUL 2.0 at 6 months (p=0.0299) and strong
signal at 3 months (p=0.0549) Mid + Distal Level PUL 2.0 at 6 months (p=0.0177) Tip to Tip strength (independent skeletal measure) at 6 months (p=0.0111)
Respiratory Trends towards improvements in PEF (% predicted) and IFR (absolute)
Cardiac Improvements in wall thickening (similar to positive changes seen in
HOPE-Duchenne) LV myocardium mass
Improvements in PUL 2.0 ObservedMid + Distal
‒ Δ 1.6 difference in CAP-1002 vs. placebo at 6-months
‒ Skeletal muscle function improved in non-ambulant patients with DMD
‒ Could help patients maintain independence if function is improved or decline attenuated
77
p= 0.0177
Comparisons treated vs. placebo using mixed model repeated measures ANOVA with covariatesAnalysis done in Sept. ITT PopulationColored boxes heights, either positive or negative, represent mean change from baselineBars represent ± one standard deviation from the meanP-values are nominal without adjustment for multiple testing or claims of statistical significance
n=10n=8
n=8
n=6
Conclusions and Future DirectionsConclusions:
First placebo-controlled trial in DMD to use PUL 2.0 for evaluation of efficacy First placebo-controlled trial
showing upper limb functional improvements in non-ambulant DMD patients Directionally consistent
improvements in function, strength, pulmonary and cardiac endpoints
Moving Forward:
Meet with FDA to determine if CAP-1002 potentially qualifies for accelerated approval based on RMAT standards
– Based on Guidance for Industry: Expedited Programs for Regenerative Medicine Therapies for Serious Conditions
78
Duchenne Market Statistics and Projections
79
Patient Population Est. US DMD population: 15,000 Est. non-ambulant patient population*: 50% Est. addressable patients*: 7,500
Estimated Target Price* CAP-1002 Target Price: $150,000 per dose
Current dosing estimate: 4 doses per year = $600,000
Revenue Projections* Est. Annual Revenue (10% market penetration): $450M Est. Annual Revenue (50% market penetration): $2.25B
*Based on internal projections and estimates
World-Class DMD Advisory BoardCraig McDonald, M.D. (National PI) University of California at Davis (USA)
Michelle Eagle, Ph.D., M.Sc., MCSP Atom International Ltd (UK)
Richard Finkel, M.D. Nemours Children's Hospital (USA)
Pat Furlong Parent Project Muscular Dystrophy (USA)
Kan Hor, M.D. Nationwide Children's Hospital (USA)
John Jefferies, M.D. Cincinnati Children's Hospital Medical Center (USA)
Oscar Henry Mayer, M.D. Children's Hospital of Philadelphia (USA)
Eugenio Mercuri, M.D., Ph.D. Catholic University of the Sacred Heart (Italy)
Francesco Muntoni, M.D. University College London (UK)
Thomas Voit, M.D. University College London (UK)
Lee Sweeney, Ph.D. University of Florida (USA)
Michael Taylor, M.D., Ph.D. Cincinnati Children's Hospital Medical Center (USA)
80
Thank you
Questions and Answer
81