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PROGENITOR NO CORUNDUM
THE SAPPHIRE STUDY
Jordan Shin MD, PhD Medical Director, Lung Biotechnology PBC
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UTHR Science Day 2018 / SAPPHIRE / Jordan Shin
SAFE HARBOR STATEMENT
Remarks today concerning United Therapeutics may include forward-looking statements which represent United Therapeutics’ expectations or beliefs regarding future events. We caution that such statements involve risks and uncertainties that may cause actual results to differ materially from those in the forward-looking statements. Consequently, all such forward-looking statements are qualified by the cautionary language and risk factors set forth in United Therapeutics’ periodic and other reports filed with the SEC.
There can be no assurance that the actual results, events or developments referenced in such forward-looking statements will occur or be realized. United Therapeutics assumes no obligation to update these forward-looking statements to reflect actual results, changes in assumptions or changes in factors affecting such forward-looking statements.
This presentation and any related discussions or statements are intended to educate investors about our company. Sometimes that process includes reporting on the progress and results of clinical trials or other developments with respect to our products. This presentation and any related discussions or statements are not intended to promote our products, to suggest that our products are safe and effective for any use other than what is consistent with their FDA-approved labeling, or to provide all available information regarding the products, their risks, or related clinical trial results. Anyone seeking information regarding the use of one of our products should consult the full prescribing information for the product available on our website at www.unither.com.
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UTHR Science Day 2018 / SAPPHIRE / Jordan Shin
Illegitimi non carborundum
RUNNING DOWN THE CORRIDORS OF INDIFFERENCE
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UTHR Science Day 2018 / SAPPHIRE / Jordan Shin
Illegitimi non carborundumMOCK LATIN
» Carborundum: industrial abrasive » General “Vinegar” Joe Stilwell (WWII)
RUNNING DOWN THE CORRIDORS OF INDIFFERENCE
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UTHR Science Day 2018 / SAPPHIRE / Jordan Shin
Illegitimi non carborundumMOCK LATIN
» Carborundum: industrial abrasive » General “Vinegar” Joe Stilwell (WWII) » Progenitor
» NO » Corundum
RUNNING DOWN THE CORRIDORS OF INDIFFERENCE
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UTHR Science Day 2018 / SAPPHIRE / Jordan Shin
Illegitimi non carborundumMOCK LATIN
» Carborundum: industrial abrasive » General “Vinegar” Joe Stilwell (WWII) » Progenitor
» NO » Corundum
» EPCs » Nitric Oxide » Sapphire
RUNNING DOWN THE CORRIDORS OF INDIFFERENCE
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UTHR Science Day 2018 / SAPPHIRE / Jordan Shin
HISTORY OF NO
1992 NOBEL PRIZE 1998
Robert F. Furchgott, PhD
Ferid Murad, MD, PhD
Louis J. Ignarro, PhD
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UTHR Science Day 2018 / SAPPHIRE / Jordan Shin
HISTORY OF NO
1992 NOBEL PRIZE 1998
Robert F. Furchgott, PhD
Ferid Murad, MD, PhD
Louis J. Ignarro, PhD
Salvador Moncada, MD, PhD, FRS
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UTHR Science Day 2018 / SAPPHIRE / Jordan Shin
HISTORY OF NO
1992NOBEL PRIZE 1982 NOBEL PRIZE 1998
Nobel Prize: 1998
Dr. John R. Vane, FRS
Robert F. Furchgott, PhD
Ferid Murad, MD, PhD
Louis J. Ignarro, PhD
Salvador Moncada, MD, PhD, FRS
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UTHR Science Day 2018 / SAPPHIRE / Jordan Shin
WHY IS NO BENEFICIAL IN PAH?
VASOCONSTRICTION THROMBOSIS REMODELING
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UTHR Science Day 2018 / SAPPHIRE / Jordan Shin
NO DEFICIENCY PLAYS AN IMPORTANT ROLE IN THE PATHOBIOLOGY OF PAH
NO PRODUCTION IS DECREASED IN PAH1
eNOS IS DOWNREGULATED BY TRANSCRIPTIONAL AND POST-TRANSLATIONAL MODIFICATIONS
» Profiling
AUGMENTATION OF ENDOGENOUS NO SIGNALING PROVIDES MEANINGFUL BENEFIT IN PAH
» PDE5 inhibition and sGC activators
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UTHR Science Day 2018 / SAPPHIRE / Jordan Shin
NO DEFICIENCY PLAYS AN IMPORTANT ROLE IN THE PATHOBIOLOGY OF PAH2
» eNOS is expressed widely in normal lungs
» Loss of NO production occurs via:
» transcriptional down regulation » post-translational modification
» Net result is loss of NO effect
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UTHR Science Day 2018 / SAPPHIRE / Jordan Shin
NO DEFICIENCY PLAYS AN IMPORTANT ROLE IN THE PATHOBIOLOGY OF PAH3
L-Arginine L-CitrulineNOS
↓NO
sGC
cGMPGMP
↑PDEs
PDE5 inhibitor
VASODILATION AND ANTIPROLIFERATION
Pro-endothelin FragmentsECE
↑Endothelin
Endothelin-receptor antagonists
↑ET-A receptor ↑ET-B receptor
VASOCONSTRICTION AND PROLIFERATION
Arachidonic acid ProstaglandinsCOX
↓Prostacyclin (PGI2)
AC
Prostacyclin derivatives
cAMP
VASODILATION AND ANTIPROLIFERATION
↓ | Downregulation in PHSmooth muscle ↑ | Upregulation in PH
NO/SGC/CGMP PATHWAY ENDOTHELIN PATHWAYPROSTACYCLIN PATHWAY
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UTHR Science Day 2018 / SAPPHIRE / Jordan Shin
HYPOTHESIS FOR SAPPHIRE
SAPPHIRE ALSO TESTS ADDITION OF EPCS AS
PART OF THAT TREATMENT. SO IT IS NO + EPCS
RESTORING HIGHER LEVELS OF NOS ENZYME WILL IMPROVE
PHYSIOLOGY IN PAH
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UTHR Science Day 2018 / SAPPHIRE / Jordan Shin
The endothelial progenitor cell loop in the pathobiology of pulmonary hypertension
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UTHR Science Day 2018 / SAPPHIRE / Jordan Shin
EPCs MAY ALSO BENEFIT IN PAH4
©2010 by European Respiratory Society
Vascular healing: Disease prevention or reversion
Vascular remodeling: Disease development or progression
ENDOTHELIAL DAMAGEGenetic background HypoxiaInflammationOxidative stressAutoimmunity
PROGENITOR CELL MOBILIZATION
Systemic hypoxemiaVEGFSDF-1a
PROGENITOR CELL HOMING AND ENGRAFTMENTEndothelial healing / intimal hyperplasia
Smooth muscle cell proliferationAngiogenesis
IL-1
SDF-1
IL-6
CCL-2
TNF
IL-8
VEGF
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UTHR Science Day 2018 / SAPPHIRE / Jordan Shin
eNOS: A possible angiogenic cell therapy for PAH
PROOF OF CONCEPT5
A
A
RVSP
(mm
Hg)
CONTROL MCT D21 MCT-eNOS D35
70.060.050.040.030.020.010.0
0
Day 21Day 35
MCTNormal
- +pcDNA
+pVEGF165
+peNOS
*†
*†
ENOS: A POSSIBLE ANGIOGENIC CELL THERAPY FOR PAH
Zhao et al. AJRCMB VOL 35 2006
Days
Control MCT D21 MCT-eNOS D35
8
peNOS
GAPDH
control peNOS
pcDN
AENOS: A POSSIBLE ANGIOGENIC CELL THERAPY FOR PAH
Zhao et al. AJRCMB VOL 35 2006
Days
Control MCT D21 MCT-eNOS D35
8
pVEGF
GAPDHpc
DNAcontrol pVEGF
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UTHR Science Day 2018 / SAPPHIRE / Jordan Shin
STUDY PHACeT6
5 YEARSstudy period
N=7SEVERE PAH
2 CLINICAL SITES
NCT00469027eNOS TRANSFECTED EPCs
PRIMARY OBJECTIVE
Tolerability and safety of injection of genetically engineered progenitor cells [ Time Frame: 5 years ]
Changes in hemodynamic pressures, patient perceived quality of life and exercise capacity [ Time Frame: 3 month post cell delivery ]
SECONDARY OBJECTIVE
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UTHR Science Day 2018 / SAPPHIRE / Jordan Shin
Restoring nitric oxide enzyme in PAH patients using their cells
EXAMPLE
LEUKAPHERESIS
ISOLATE EPCs FROM PATIENT (DAY 0)
Red blood cells
Endothelial progenitor cells(EPCs)
eNOS gene
Transfection
Cell culture flask
How cell therapy works?
CELL THERAPY7
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UTHR Science Day 2018 / SAPPHIRE / Jordan Shin
Restoring nitric oxide enzyme in PAH patients using their cells
EXAMPLE
LEUKAPHERESIS
ISOLATE EPCs FROM PATIENT (DAY 0)
Red blood cells
Endothelial progenitor cells(EPCs)
eNOS gene
Transfection MANUFACTURING PROCESS
1
Cell culture flask
PURIFY EPCs
How cell therapy works?
CELL THERAPY7
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UTHR Science Day 2018 / SAPPHIRE / Jordan Shin
Restoring nitric oxide enzyme in PAH patients using their cells
EXAMPLE
LEUKAPHERESIS
ISOLATE EPCs FROM PATIENT (DAY 0)
Red blood cells
Endothelial progenitor cells(EPCs)
eNOS gene
Transfection MANUFACTURING PROCESS
1
2
Cell culture flask
PURIFY EPCs
EXPAND 2000X & ADD eNOS GENE
(DAY 1-26)
How cell therapy works?
CELL THERAPY7
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UTHR Science Day 2018 / SAPPHIRE / Jordan Shin
Restoring nitric oxide enzyme in PAH patients using their cells
EXAMPLE
LEUKAPHERESIS
ISOLATE EPCs FROM PATIENT (DAY 0)
Red blood cells
Endothelial progenitor cells(EPCs)
eNOS gene
Transfection MANUFACTURING PROCESS
FREEZE CELLS FOR FUTURE USE
1
2
3
Cell culture flask
PURIFY EPCs
EXPAND 2000X & ADD eNOS GENE
(DAY 1-26)
How cell therapy works?
CELL THERAPY7
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UTHR Science Day 2018 / SAPPHIRE / Jordan Shin
Restoring nitric oxide enzyme in PAH patients using their cells
EXAMPLE
LEUKAPHERESIS
ISOLATE EPCs FROM PATIENT (DAY 0)
Red blood cells
Endothelial progenitor cells(EPCs)
eNOS gene
Transfection MANUFACTURING PROCESS
FREEZE CELLS FOR FUTURE USE
1
2
3
Cell culture flask
PURIFY EPCs
EXPAND 2000X & ADD eNOS GENE
(DAY 1-26)
INFUSION
DELIVER MONTHLY DOSES IV
How cell therapy works?
CELL THERAPY7
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UTHR Science Day 2018 / SAPPHIRE / Jordan Shin
Minicircle vs. plasmid DNA transfection of EPCs
CELL THERAPY
PARENTAL PLASMID
Tran
sgene
attB
attP
KanR
pUC ORI
P
SV40 poly-A
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UTHR Science Day 2018 / SAPPHIRE / Jordan Shin
Minicircle vs. plasmid DNA transfection of EPCs
CELL THERAPY
+ ARABINOSEPARENTAL PLASMID
Tran
sgene
attB
attP
KanR
pUC ORI
P
SV40 poly-A
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UTHR Science Day 2018 / SAPPHIRE / Jordan Shin
Minicircle vs. plasmid DNA transfection of EPCs
CELL THERAPY
MINICIRCLE
attR
P
SV40 poly-A
Transgene
+ ARABINOSEPARENTAL PLASMID
Tran
sgene
attB
attP
KanR
pUC ORI
P
SV40 poly-A BACTERIAL
BACKBONE attL
Degradation
32x Sce-I Sites
KanR
pUC ORI
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UTHR Science Day 2018 / SAPPHIRE / Jordan Shin
Minicircle vs. plasmid DNA transfection of EPCs
CELL THERAPY
MINICIRCLE
attR
P
SV40 poly-A
Transgene
0
10
20
30
40
Fold-
increa
se in
eNOS
(norm
alized
to be
ta act
ion)
Empty Vec
tor
PVAX-eNOS
PVAX-eNOS
minicircle-
eNOS
minicircle-
eNOS
24 HOURS 72 HOURS
*
*
BACTERIAL BACKBONE attL
Degradation
32x Sce-I Sites
KanR
pUC ORI
+ ARABINOSEPARENTAL PLASMID
Tran
sgene
attB
attP
KanR
pUC ORI
P
SV40 poly-A
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UTHR Science Day 2018 / SAPPHIRE / Jordan Shin
SAPPHIRE STUDY*Study of Angiogenic Cell Therapy for Progressive Pulmonary Hypertension: Intervention With Repeat Dosing of eNOS-enhanced EPCs
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UTHR Science Day 2018 / SAPPHIRE / Jordan Shin
Prevalence of WHO-Functional Classes (FC)8
EPIDEMIOLOGY OF WHO GROUP 1 PAH
FC II-IV
PAH40,000 patients in U.S. have PAH
42%FC II
35%FC III
6%FC IV
17%FC I
83%
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UTHR Science Day 2018 / SAPPHIRE / Jordan Shin
SCOPE OF THE PROBLEM
MAIN INCLUSION CRITERIA
Male or female18-80 years
on appropriate stable therapy for at least 3 months prior to
the screening period
WHO FUNCTIONAL CLASS » Idiopathic or familial PAH
» Scleroderma associated PAH
» Anorexigens/toxins
» Associated with CHD
II III IV
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UTHR Science Day 2018 / SAPPHIRE / Jordan Shin
12-MONTHStreatment period
N=45SYMPTOMATIC PAH
9 CLINICAL SITES
RANDOMIZE 1:1:1 | 3 ARMS
NCT03001414The SAPPHIRE Trial will use autologous progenitor cell-based gene delivery to enhance lung microvascular repair and regeneration in patients with severe symptomatic PAH
SAPPHIRE STUDY
STUDY DESIGN AND TREATMENT
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UTHR Science Day 2018 / SAPPHIRE / Jordan Shin
SAPPHIRE STUDY
STUDY DESIGN AND TREATMENT
12-MONTHStreatment period
9 CLINICAL SITES
RANDOMIZE 1:1:1 | 3 ARMS
NCT03001414The SAPPHIRE Trial will use autologous progenitor cell-based gene delivery to enhance lung microvascular repair and regeneration in patients with severe symptomatic PAH
KEY CLINICAL ASSESSMENTS
TREATMENT PLAN
N=45SYMPTOMATIC PAH
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UTHR Science Day 2018 / SAPPHIRE / Jordan Shin
SAPPHIRE STUDY
KEY CLINICAL ASSESSMENTS
PRIMARY ENDPOINT
6MWD AT 6 MONTHS
» 6MWD at 12 months
» Hemodynamic parameters
» Time to clinical worsening (combined morbidity/mortality)
» RV function by echocardiography
» RV function/lung perfusion by MRI (subgroup)
SECONDARY ENDPOINT
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UTHR Science Day 2018 / SAPPHIRE / Jordan Shin
SAPPHIRE TREATMENT PLAN
COURSE 2
eNOS-EPC 20M cells/dose
Apheresis
Placebo (Saline)
Randomization
ARM 1: PLACEBO ARM 1: TOTAL 80M CELLS
ARM 2: 80M CELLS ARM 2: TOTAL 80M CELLS
ARM 3: 80M CELLS ARM 3: TOTAL 160M CELLS
0 1 2 3 4 5 6 7 8 9 10 11 12-1
CELL MANUFACTURING
1°EP ANALYSISCOURSE 1
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UTHR Science Day 2018 / SAPPHIRE / Jordan Shin
KEY INNOVATIONS
USE OF MINI CIRCLES FOR GENE THERAPY/
RESTORATION
INNOVATIVE CELL AND GENE THERAPY FOR PAH
1 2
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UTHR Science Day 2018 / SAPPHIRE / Jordan Shin
CELLULAR THERAPIES IN THE FUTURE
» Living cells that treat from within, without peak and through and under physiologic control
» CT increase dose interval from minutes to weeks
» CT designed to target only diseased tissue
» Highly specific, delivering pM doses locally rather than uM doses systematically
Brain 10%
Breast 10%
Lung 10%
Head and Neck 7%
Colorectal 7%
Liver 7%GI System 6%
Prostate 6%
Skin 5%
Esophagus 4%
Urinary System 4%
Kidney 3%
Nervous System 3%
Other 10%
Pancreas 3%
Ovary 3%
355 SINGLE GENE
TARGETS
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UTHR Science Day 2018 / SAPPHIRE / Jordan Shin
REFERENCES
1. Tonelli Profiling Nitric Oxide Metabolites in Patients with Idiopathic Pulmonary Arterial Hypertension. Rui Zhang, et al. ERJ Nov 2016, 48 (5) 1386-1395.
2. Am J Physiol Lung Cell Mol Physiol. 2016 Jun 1; 310(11): L1199–L1205. Supporting downregulation of NO.
3. Humbert M, et al. Circulation 2014:130:2189-2208
4. G. P. Fadini et al. Eur Respir J 2010;35:418-425
5. Zhao et al. AJRCMB VOL 35 2006.
6. J Granton et al. Circ Res. 2015 Sep 11;117(7):645-54.
7. Adapted from Callahan et. Al. Severe Immune Complication Committee (SICC), MGH and the U.U. FDA
8. United Therapeutics Internal Market Research.
*The SAPPPHIRE study is being conducted entirely in Canada, and is sponsored by Northern Therapeutics, Inc., a Canadian entity in which UT has a 49.7 percent voting stake and a 71.8 percent financial stake. UT has the exclusive right to pursue this technology in the United States, and plans to seek FDA approval of Aurora-GT if SAPPHIRE is successful.