`
`BEFORE THE PATENT TRIAL AND APPEAL BOARD
`
`ROXANE LABORATORIES., INC.,
`Petitioner
`
`V.
`
`NOVARTIS AG,
`Patent Owner
`
`Case Not Yet Assigned
`Patent 9,006,224
`
`DECLARATION OF KENNETH HO—MING YU, M.D., M.SC., IN
`SUPPORT OF THE PETITION FOR INTER PARTES REVIEW OF U.S.
`PATENT NO. 9,006,224
`
`Roxane Labs., Inc.
`Exhibit 1003
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`Page 001
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`Roxane Labs., Inc.
`Exhibit 1003
`Page 001
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`TABLE OF CONTENTS
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`INTRODUCTION ................................................................................. .. ...... ..3
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`QUALIFICATIONS AND EXPERIENCE ................................................... ..3
`
`III.
`
`IV.
`
`SIHVIMARY OF OPINIONS ........................................................ .._ ............... ..5
`
`PERSON OF ORDINARY SKILL IN THE ART .................................... ..6
`
`LEGAL STANDARDS ................................................................................. ..7
`
`VI.
`
`TECHNICAL BACKGROUND AND STATE OF THE ART .................... ..8
`
`A.
`
`B.
`
`C.
`
`The Biology Of Pancreatic Neuroendocrine Tumors ......................... ..8
`
`Everolimus As A Treatment For PNET .............................................. ..9
`
`The Prior Art Taught That Everolimus Has Enhanced Solubility
`And Improved Pharmacokinetics Compared To Rapamycin ........... .. 12
`
`VII.
`
`OPINIONS .........................................................................
`
`........................ ..13
`
`A.
`
`I B.
`
`Claims 1 And 2 Of The ’224 Patent Are Obvious Over The
`’54l Publication In View Of Tabernero ........
`.................................. .. l 3
`
`Claims 1 And 2 Of The ’224 Patent Are Obvious Over von
`Wichert In View Of Dutcher, The ‘772 Patent And Tabernero ........ .. 15
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`Page 2 of 18
`Roxane Labs., Inc.
`Exhibit 1003
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`Page 002
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`Roxane Labs., Inc.
`Exhibit 1003
`Page 002
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`I.
`
`INTRODUCTION
`
`1.
`
`I, Kenneth Ho-ming Yu, M.D., M.Sc., have personal knowledge of the
`
`facts set forth in this Declaration and am competent to testify to the same.
`
`2.
`
`I have been retained by counsel for Roxane (Roxane Laboratories,
`
`Inc.) in this proceeding regarding US Patent No. 9,006,224 (“the ’224 patent”).
`
`3.
`
`I hereby offer this Declaration in support of the petition for inter
`
`partes review of the ’224 patent.
`
`4.
`
`A list of materials that I have reviewed is attached hereto as
`
`Attachment A.
`
`II.
`
`QUALIFICATIONS AND EXPERIENCE
`
`5.
`
`I have been a licensed medical doctor since 1999 and am board
`
`certified in Medical Oncology.
`
`I currently serve as an Assistant Attending
`
`Physician at Memorial Hospital for Cancer & Allied Diseases in the Department of
`
`Medicine, NY, and Assistant Member of Memorial Sloan Kettering Cancer Center,
`
`NY.
`
`I also serve as an Assistant Professor at Weill Cornell Medical College, NY;
`
`Adjunct Assistant Professor at the Universityof Pennsylvania, Philadelphia; and
`
`Clinical Fellow at Cold Spring Harbor Laboratory, Cold Spring Harbor, NY.
`
`6.
`
`t I graduated from Harvard University, Cambridge in 1995 and
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`completed my M.D. at John Hopkins University, Baltimore in 1999.
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`I completed
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`an M.Sc. qualification at the University of Pennsylvania, Philadelphia in 2009.
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`Page 3 of 18
`Roxane Labs., Inc.
`Exhibit 1003
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`Page 003
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`Roxane Labs., Inc.
`Exhibit 1003
`Page 003
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`7.
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`I was a Medical Intern at the Hospital of the University of
`
`Pennsylvania between 1999-2000, before becoming a Medical Resident at the
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`Hospital of the University of Pennsylvania from 2000-2002.
`
`I was a Fellow of
`
`Hematology and Oncology at the Hospital of the University of Pennsylvania
`
`between 2002-2005.
`
`8.
`
`I was an Attending Physician at Abramson Cancer Center in the
`
`Division of Hematology—Oncology at the Hospital of the University of
`
`Pennsylvania between 2005-2010.
`
`I am currently an Assistant Attending Physician
`
`at Memorial Hospital for Cancer & Allied Diseases at the Department of Medicine
`
`in NYC.
`
`. 9.
`
`I hold several other professional memberships.
`
`I am currently a
`
`member of the American Society of Clinical Oncology. I have previously been a
`
`member of the American Association of Cancer Research’, the American
`
`Gastroenterology Association and the American Society for Mass Spectroscopy.
`
`10.
`
`I have been awarded several honors over my career to date.
`
`I was
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`designated magna cum laude with highest honors in 1995 at Harvard University.
`
`I
`
`was also a Research Scholar at the Institute for Translational Medicine and
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`Therapeutics, University of Pennsylvania in 2005, and received the Bernard L.
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`Schwartz Designated Research Award in Pancreatic Cancer, AGA Foundation for
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`Digestive Health and Nutrition in 2006.
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`Roxane Labs., Inc.
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`11.
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`I hold various editorial responsibilities in several academic journals
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`including, for example, Gastroenterology, Journal of Gastrointestinal Cancer,
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`Pancreatology, Oncogene, Journal of Surgical Oncology and Cancer
`
`Chemotherapy and Pharmacology.
`
`12.
`
`I have authored more than 40 journal articles, abstracts, and other
`
`presented lectures relating primarily to the diagnosis and treatment of pancreatic
`
`cancers and other advanced solid tumors.
`
`13. My research has been directed to various facets of pancreatic cancers,
`
`including the development of novel therapeutics and biomarkers in pancreatic
`
`ductal adenocarcinoma (PDAC).
`
`I am also the principal investigator or co-
`
`investigator on a number of clinical trials focused on pancreatic cancer and PNET.
`
`14. My complete Curriculum Vitae is attached as Attachment B.
`
`III.
`
`SUMMARY OF OPINIONS
`
`15.
`
`It is my opinion for the reasons described below that claims 1 and 2 of
`
`the ‘Z24 patent would have been obvious to a person of ordinary skill in the art in
`
`View of the prior art disclosing at least the following: (1) that everolimus is
`
`effective against CAZO9-48 pancreatic cell line which is a rat cell line which can be
`
`used as a model for pancreatic neuroendocrine tumors; (2) that 10 mg everolimus
`
`is safe and effective against advanced solid tumors; (3) that rapamycin inhibits
`
`proliferation in BON cells, a cell line established from human PNET; (4) that
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`Page 005
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`Roxane Labs., Inc.
`Exhibit 1003
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`everolimus has antitumor properties and mechanisms of action similar to those of
`
`rapamycin; and (5) that everolimus has increased solubility and improved
`
`pharmacokinetic properties compared to rapamycin.
`
`16.
`
`I have reviewed pancreatic neuroendocrine tumor and mTOR inhibitor
`
`prior art. Based on my review of the prior art, my opinion is that one of ordinary
`
`skill in the art would have understood that the ’541 publication (Exhibit 1005) and
`
`Tabernero (Exhibit 1006) render obvious the challenged claims of the ’224 patent.
`
`17.
`
`It is also my opinion that one of ordinary skill in the art would have
`
`understood that von Wichert (Exhibit 1007), Dutcher (Exhibit 1008), the ’772
`
`patent (Exhibit 1009) and Tabemero (Exhibit 1006) would render obvious the
`
`challenged claims of the ’224 patent.
`
`IV.
`
`PERSON OF ORDINARY SKILL IN THE ART
`
`18.
`
`The purported inventions of the ’224 patent involve an understanding
`
`of the principles of the treatment of advanced tumors in patients suffering from a
`
`tumor such as pancreatic neuroendocrine tumor (“PNET”). It is my opinion that a
`
`person of ordinary skill in the art (“POSA”) pertaining to the subject matter of the
`
`’224 patent as of November 21, 2005 would have had: (1) a Ph.D. in biology,
`
`biochemistry, pharmaceutical sciences, molecular biology, cancer biology, or other
`
`biological sciences, and/or (2) a medical degree. The POSA would have
`
`experience conducting preclinical, clinical, and/or laboratory research relating,
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`Page 6 of 18
`Roxane Labs., Inc.
`Exhibit 1003
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`Page 006
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`Roxane Labs., Inc.
`Exhibit 1003
`Page 006
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`inter alia, to rapamycin and its analogs, cancers of the pancreas or neuroendocrine
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`system, and/or intracellular pathways. The POSA would also have collaborated
`
`with others having skills and expertise in areas pertinent to the above subject
`
`matter, including, for example, pharmacologists, formulators, and biochemists.
`
`V.
`
`LEGAL STANDARDS
`
`19.
`
`I have been informed regarding the legal principle of obviousness and
`
`have used my understanding of that principle in forming my opinions.
`
`20.
`
`I have been informed by counsel for Roxane that the first three factors
`
`to be considered in an obviousness inquiry are: (l) the scope and content of the
`
`prior art; (2) the differences between the prior art and the claims; and (3) the level
`
`of ordinary skill in the pertinent art.
`
`21.
`
`I am also informed by counsel for Roxane that certain factors,
`
`sometimes known as “secondary considerations,” must be considered, if present,
`
`when making obviousness determination. These secondary considerations include:
`
`(i) long-felt need, (ii) unexpected results, (iii) skepticism of the invention, (iv)
`
`teaching away from the invention, (v) commercial success, (vi) praise by others for
`
`' the invention, and (vii) copying by other companies.
`
`22.
`
`I am also informed by counsel for Roxane that the earliest U.S. patent
`
`application leading to the ’224 Patent was filed on November 20, 2006.
`
`I have
`
`therefore analyzed obviousness as of that day or somewhat before, understanding
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`Page 7 of 18
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`Roxane Labs., Inc.
`Exhibit 1003
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`Page 007
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`Roxane Labs., Inc.
`Exhibit 1003
`Page 007
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`that as time passes, the knowledge of a person of ordinary skill in the art will
`
`increase.
`
`VI. TECHNICAL BACKGROUND AND STATE OF THE ART
`
`A.
`
`The Biology Of Pancreatic Neuroendocrine Tumors
`
`23.
`
`The prior art teaches that PNETS are rare neoplastic growths that
`
`derive from endocrine pancreatic tissue. See, e.g. , Doran Exhibit 1010 at 5; Guo
`
`Exhibit 1011 at 73. The prior art further teaches that when PNETS can be resected
`
`or surgically removed, this can lead to rapid regression of clinical symptoms
`
`(WHO Exhibit 1012 at 175), but that antitumor treatments are necessary to treat
`
`poorly defined or metastasized tumors (McStay Exhibit 1013 at 47). Such
`
`antitumor treatments include, inter alia, chemotherapy, such as a combination of
`
`streptozocin, 5—fluorouracil (“SFU”) and Adriamycin (doxorubicin), which was
`
`reported to significantly prolong survival, inhibit tumor progression, and produce
`major shrinkage ofwell-differentiated tumors in up to two—thirds of cases. Id.
`3
`
`24.
`
`It was understood by 2000 that the molecular biology of PNETS
`
`would render them susceptible to treatment with mTOR inhibitors such as
`
`everolimus. It was known that PNETS are associated with mutations to the MEN-
`
`1, VHL, NF1 , TSC1 or TSC2 genes, (Doran Exhibit 1010 at 10-12), and that
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`dysfunctional VHL gene product would lead to increase HIF—1 activity and
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`overexpression of growth factors (VEGF) associated with tumor growth and
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`Page 8 of 18
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`Roxane Labs., Inc.
`Exhibit 1003
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`Page 008
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`Roxane Labs., Inc.
`Exhibit 1003
`Page 008
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`metastasis. See, e. g., Harris Exhibit 1014 at 32-33; Calender Exhibit 1015 at 8-9;
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`Maxwell Exhibit 1016 at 271; and Semenza, Exhibit 1017 at 86-87. It was further
`
`known that dysfunctional TSC1 or TSC2 genes products would result in activation
`
`of the PI3K/Akt/mTOR signaling pathway, HIF—1 activation, and cell growth. See,
`
`e. g., Figure 3 of Kwiatkowski Exhibit 1018 and 473-474;. Brugarolas Exhibit 1019
`
`at 2894. A POSA also would have known that the tumor suppressor PTEN may
`
`function abnormally in PNETS. Perren Exhibit 1020 at 1097. Moreover, a POSA
`
`would have known that PTEN acts upstream of the PI3K/Akt/mTOR pathway and
`
`that loss or mutation of PTEN results in the stimulation of the PI3K/Akt/mTOR
`
`pathway. See, e. g., Seku1ic' Exhibit 1021 at 3505; Podsypanina Exhibit 1027 at
`
`1 03 24.
`
`25.
`
`By the early 2000s, it was known that the involvement of mTOR is
`
`common to each of these tumor growth pathways. Based on that knowledge, a
`
`POSA would have recognized that the use of mTOR inhibitors, such as rapamycin
`
`and everolimus, provide an opportunity to shut down these pathways. See, e. g.,
`
`Brugarolas Exhibit 1019; Sekulié Exhibit 1021; Dutcher Exhibit 1008 at 112; Yee
`
`Exhibit 1022; Vara Exhibit 1023 at 201; and Vignot Exhibit 1024 at 531.
`
`B.
`
`Everolimus As A Treatment For PNET
`
`26.
`
`The prior art teaches that the mTOR signaling pathway impacts
`
`cellular functions, including those important for growth and proliferation of
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`Page 9 of 18
`Roxane Labs., Inc.
`Exhibit 1003
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`Page 009
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`Roxane Labs., Inc.
`Exhibit 1003
`Page 009
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`various tumor types. As of 2004, researchers had developed and tested specific
`
`inhibitors of mTOR, like rapamycin and its derivatives everolimus and CCI—779
`
`(temsirolimus), that target the PI3K/Akt pathway for use as antitumor agents. See,
`
`e.g., Boulay, Exhibit 1025 at 252; and Carraway, Exhibit 1026 at 222.
`
`27.
`
`In preclinical and clinical studies, everolimus and CCI—779 were
`
`demonstrated to be tolerable, and to have a broad range of activity against human
`
`cancers, such as breast cancer, hematologic malignancies, prostate cancer,
`
`leukemia, melanoma, renal cell cancer, glioblastoma, and pancreatic cancer (see,
`
`e.g., Yee Exhibit 1022, Dutcher Exhibit 1008, Yu Exhibit 1035, Carraway Exhibit
`
`1026, Vara Exhibit 1023, Boulay Exhibit 1025, ’54l Publication Exhibit 1005,
`
`Tabernero Exhibit 1006,), and even against cancers that were advanced, refractory,
`
`and/or resistant to other anticancer treatments (see, e.g., Hidalgo Exhibit 1028 at
`
`187a).
`
`28.
`
`For instance, the ’541 Publication teaches that everolimus
`
`monotherapy can treat human advanced solid tumors, including those of the
`
`pancreas. ’54l Publication at [0009—00l8], [0099—0l05]. The ’54l Publication
`
`further states that everolimus’s efficacy in treating solid tumors may be
`
`demonstrated in animal studies. Id. at [0009], [0074].
`
`In one such study, a mouse
`
`study, tumors were established by injection of the CA20948 pancreatic cell line. In
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`that study, everolimus, when administered as a monotherapy by mouth at a daily
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`Roxane Labs., Inc.
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`dose of 0.5 to 2.5 mg/kg resulted in a mean increase in tumor volume that was only
`
`23% of the increase in tumor volume when control was administered. Id. at
`
`[0088]. In addition, the ’541 Publication states that everolimus “significantly and
`
`consistently decreases in these assays the rate of CA20948 pancreatic tumor
`
`growth when compared to vehicle controls.” Id.
`
`29.
`
`A POSA would have understood that the CA20948 pancreatic cell line
`
`was used as a model for evaluating PNETs.i See De Jong 1999 at 356 (using
`
`CA20948 as a model for somatostatin positive neuroendocrine tumors.) Breeman
`1993 at 1089. Boulay teaches that everolimus has antitumor efficacy against the
`
`CA20948 cell line. Boulay Exhibit 1025, at 252. Boulay demonstrated
`
`everolimus’s activity against PNET as a monotherapy, and also tied such activity
`
`to everolimus’s ability to inhibit mTOR, teaching a role of the mTOR pathway in
`
`PNETS.
`
`30.
`
`The prior art taught that everolimus is a rapamycin derivative that has
`
`antineoplastic activity and that everolimus, like rapamycin, blocks mTOR and
`
`P705“ activity. See, e.g., Dutcher Exhibit 1008, at 112; Yee Exhibit 1022; vata
`
`Exhibit 1023, at 201; Sekulié Exhibit 1021 at 3504; see also Vignot Exhibit 1024,
`
`at531.
`
`31.
`
`The prior art taught that everolimus would be efficacious against
`
`PNET. von Wichert Exhibit 1007, for example, teaches that rapamycin inhibits
`
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`Page 011
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`Roxane Labs., Inc.
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`growth of BON cells, a human pancreatic endocrine cancer cell line, “by a pathway
`
`that involves PI3 -kinase, [mTOR]/p7056k, and mitogen—activated protein kinase
`
`kinase 1 activity.” von Wichert Exhibit 1007, at 4573; see also Evers, Exhibit
`
`1030 (disclosing that the BON cell line is derived from a metastatic human
`
`carcinoid tumor of the pancreas or PNET); Ahnert—Hi1ger, Exhibit 1036 at 1601
`
`(describing BON as a PNET cell line); Lemmer, Exhibit 1037 at 667 (describing
`BON as a pancreatic neuroendocrine cell line); Jonas, Exhibit 1038 at 91, 92
`
`(describing human neuroendocrine pancreatic cell line BON); Detjen, Exhibit 1039
`
`at 736 (disclosing BON as a neuroendocrine pancreatic cell line); John, Exhibit
`
`1040 at 791, 796 (disclosing BON as a pancreatic cell line derived from a human
`
`neuroendocrine tumor).
`
`C.
`
`The Prior Art Taught That Everolimus Has Enhanced Solubility
`And Improved Pharmacokinetics Compared To Rapamycin
`
`32. A POSA would have been motivated to use everolimus rather than
`
`rapamycin to treat PNET for the following reasons. First, a POSA would have
`
`known that rapamycin had poor pharmaceutical properties that precluded its
`
`development as an anticancer agent. See, e.g., Houghton Exhibit 1034, at 352
`
`(teaching that Ayerst Research Laboratories, which first isolated and characterized
`
`rapamycin, failed to develop a satisfactory IV formulation of rapamycin); see also
`
`Hidalgo Exhibit 1028 at 6680 (“the poor aqueous solubility and chemical stability
`
`of rapamycin precluded its development as an anti-cancer agent”); ’772 at 1:34-40
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`(describing rapamycin, in comparison to everolimus, as having antitumor activity,
`
`but having low solubility and very low and variable bioavailability which restricts
`
`itsutility as a pharmaceutical). Second, compared to rapamycin, everolimus was
`
`known to have a better pharmacological profile. See Crowe Exhibit 1032 at 630
`
`(teaching that everolimus has 60% greater absolute oral bioavailability than
`
`rapamycin); see also ’772 Patent Exhibit 1009 at 1:41-45, 2:55-60 (describing
`
`everolimus as having an improved pharmacologic profile, greater stability and
`
`bioavailability, and greater ease in producing galenic formulations).
`
`33. Moreover, a POSA would have known that everolimus could be
`
`conveniently administered orally in View of its improved bioavailability compared
`
`to rapamycin and CCI-779. See e.g., ’772 Patent Exhibit 1009 at 1:41-45, 2:20,
`
`2:30; see also id. at 22:28-29; see also Boulay Exhibit 1025, Tabernero Exhibit
`
`1006. Everolimus was also given as a monotherapy. See, e.g., Yee Exhibit 1022;
`
`’772 Patent Exhibit 1009 at 728-16; see also id. at 4:56-57; seealso Boulay Exhibit
`
`1025; Tabernero Exhibit 1006,.
`
`VII. OPINIONS
`
`A.
`
`Claims 1 And 2 Of The ’224 Patent Are Obvious Over The ’541
`Publication In View Of Tabernero
`
`34.
`
`As discussed in more detail below, in my opinion, claim 1 and claim 2
`
`of the ’224 Patent are obvious over the ’541 Publication in view of Tabernero.
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`35.
`
`The efficacy of everolimus in a preclinical rat model for PNET is
`
`described in the ’541 Publication. The ’54l Publication describes orally
`
`administering everolimus to CA20948 tumor bearing mice. A POSA would have
`
`understood that CA20948 pancreatic cell line was used to screen compounds for
`
`efficacy against PNET. See e. g. , Boulay Exhibit 1025, Abstract; De Jong Exhibit
`
`1033 at 356; Breeman Exhibit 1029 at 1089.
`
`36.
`
`The prior art ’541 Publication describes administering daily doses of
`
`0.5 mg/kg to 2.5 mg/kg of everolimus “p.o.”, 1'. e., the doses were orally
`
`administered. Exhibit 1005 at [0088]. In addition, the ’54l Publication states that
`
`everolimus “significantly and consistently decreases in these assays the rate of
`
`CA20948 pancreatic tumor growth when compared to vehicle controls.” Ia’. A
`
`POSA readingthe ’54l Publication would have understood that everolimus had
`
`been shown to inhibit growth of tumors of the CA20948 cell line, a model for
`
`evaluating PNET as an anticancer monotherapy, which would have given the
`
`POSA a reasonable expectation that everolimus would be active against PNET.
`
`37.
`
`It was also known from Phase I clinical trials that everolimus was safe
`
`and efficacious against advanced solid tumors in humans. Tabernero describes a
`
`Phase I trial in which everolimus, a known mTOR inhibitor, was orally
`
`administered as a monotherapy at 10 mg daily to human patients suffering from
`
`advanced solid tumors. More specifically, Tabernero reports that administration of
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`everolimus at 10 mg daily results in intratumoral inhibition of mTOR signaling and
`
`recommends further phase lI—III development of everolimus monotherapy at a
`
`dosage of 10 mg daily. Typically, patients who present with advanced solid
`
`tumors have tumors which are surgically refractory and which have not responded
`
`to cytotoxic chemotherapy. A POSA reading Tabernero would understand that
`
`everolimus is a safe and effective therapy for treatment of advanced solid tumors.
`
`38.
`
`A POSA reading the ’541 Publication would have known that
`
`everolimus is active against the C/X20948 pancreatic cell line, which is a model for
`
`PNET. In View of Tabernero, a POSA would have known that everolimus is
`
`nontoxic and effective at a dose of 10 mg daily. In view of the combined teachings
`
`ofthe ’541 Publication and Tabernero, a POSA would have been motivated to
`
`orally administer everolimus, which is nontoxic, as a monotherapy antitumor agent
`
`to a human patient with advanced PNET after failure of cytotoxic chemotherapy
`
`with a reasonable expectation of success.
`
`B.
`
`Claims 1 And 2 Of The ’224 Patent Are Obvious Over von
`
`Wichert In View Of Dutcher, The ’772 Patent And Tabernero
`
`39. As discussed in more detail below, in my opinion, claim 1 and claim 2
`
`of the ’224 patent are obvious over von Wichert in view of Dutcher, the ’772
`
`patent and Tabernero.
`
`40.
`
`Von Wichert describes the use of rapamycin, in vitro, to inhibit
`
`proliferation of BON cells, which are cells established from human PNET. Exhibit
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`1007, at 4578; see also Evers, Exhibit 1030 (disclosing that the BON cell line is
`
`derived from a metastatic human carcinoid tumor of the pancreas or PNET);
`
`Ahnert—Hilger, Exhibit 1036 at 1601 (describing BON as a PNET cell line);
`
`Lemmer, Exhibit 1037 at 667 (describing BON as a pancreatic neuroendocrine cell
`
`line); Jonas, Exhibit 1038 at 91, 92 (describing human neuroendocrine pancreatic
`
`cell line BON); Detjen, Exhibit 1039 at 736 (disclosing BON as a neuroendocrine
`
`pancreatic cell line); John, Exhibit 1040 at 791, 796 (disclosing BON as a
`
`pancreatic cell line derived from a human neuroendocrine tumor). A POSA
`
`reading von Wichert would understand that BON cells are a useful model to study
`
`the biology of PNET in vitro. Id. at 45 73. von Wichert reports that incubation of
`
`BON cells with rapamycin inhibited proliferation of BON cells by about 70%. Id.
`
`A POSA reading Von Wichert would have reasonably expected that rapamycin,
`
`which was found to inhibit BON cells, should also inhibit proliferation of PNET
`cells, from which BON cells are established.
`
`41.
`
`As discussed above, a POSA would have known that rapamycin and
`
`everolimus are both mTOR inhibitors and inhibit tumor proliferation through the
`
`same mechanism of action. Dutcher Exhibit 1008 at 112. Because everolimus and
`
`rapamycin inhibit tumor proliferation through the same mechanism of action, a
`
`POSA would have reasonably expected that like rapamycin, everolimus, by
`
`targeting mTOR, would be effective against tumors, such as PNET tumors.
`
`Page 16 of 18
`Roxane Labs., Inc.
`Exhibit 1003
`
`Page 016
`
`Roxane Labs., Inc.
`Exhibit 1003
`Page 016
`
`
`
`42.
`
`A POSA also would have known that in comparison to rapamycin,
`
`everolimus exhibits improved solubility, has an improved pharmacologic profile,
`
`exhibits greater stability and bioavailability, and allows for greater ease in
`
`producing galenic formulations.
`
`’772 patent Exhibit 1009 at 1:34-45.
`
`43.
`
`In View of rapamycin’s efficacy with respect to BON cells, the similar
`
`antitumor action of everolimus and rapamycin, and the superior solubility and
`
`pharmacokinetic properties of everolimus, a POSA would have been motivated to
`
`g develop a treatment for PNET using everolimus as a monotherapy and would have
`
`reasonably expected that everolimus would be active against PNET.
`
`44.
`
`As discussed above, a POSA reading Tabernero would have
`
`understood that 10 mg daily of everolimus is a safe and effective therapy for
`
`treatment of advanced solid tumors.
`
`45.
`
`A POSA reading von Wichert and Dutcher would have expected that
`
`everolimus was active against the BON cell line, which is a model for PNET. In
`
`view of the ’772 patent and Tabernero, a POSA would have been motivated to
`
`orally administer 10 mg everolimus as a monotherapy agent to a human patient
`
`with advanced PNET after failure of cytotoxic chemotherapy with a reasonable
`
`expectation of success.
`
`46.
`
`I am unaware of any secondary considerations which would overcome
`
`obviousness of claim l and claim 2 of the ’224 patent. In view of the above prior
`
`Page 17 ofl8
`Roxane Labs., Inc.
`Exhibit 1003
`
`Page 017
`
`Roxane Labs., Inc.
`Exhibit 1003
`Page 017
`
`
`
`art, the efficacy of everolimus to treat PNET is not surprising, and certainly is not
`
`unexpected. In addition, other therapies for PNET, such as a combination
`
`chemotherapeutic regimen of streptozocin, 5—fluorouracil (“5FU”) and Adriamycin
`
`’ (doxorubicin), had been reported to significantly prolong survival, inhibit tumor
`
`progression, and produce major shrinkage of well—differentiated tumors in up to
`
`two-thirds of cases. McStay Exhibit 1013 at 47.
`
`I hereby declare that all statements made herein of my own knowledge are true and
`
`that all statements made on information and belief are believed to be true; and
`
`further that these statements were made with the knowledge that willful false
`
`statements and the like so made are punishable by fine or imprisonment, or both,
`
`under Section 1001 of Title 18 of the United States Code.
`
`Dated:
`
`7/18/16
`
`Kenneth
`Yu
`
`Digitally signed by Kenneth Yu
`DN: cn=Kenneth Yu, o=MSKCC,
`CIU, emai|=yuki@mskccrorg,
`c=US
`Date: 2016.07.18 09:07:37
`~o4'oo'
`
`By:
`Kenneth Ho—Ming Yu, M.D., M.Sc.,
`
`Page 18 of 18
`Roxane Labs., Inc.
`Exhibit 1003
`
`Page 018
`
`Roxane Labs., Inc.
`Exhibit 1003
`Page 018
`
`
`
`Declaration of Kenneth Ho-ming Yu, M.D., M.Sc. in Support of Petition
`
`Attachment A: Materials Considered
`
`Petition for inter partes Review of U.S. Patent No. 9,006,224.
`
`Exhibit No.
`
`Description
`
`1001
`
`1005
`
`1006
`
`1007
`
`1008
`
`1009
`
`1010
`
`1011
`
`1012
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`Roxane Labs., Inc.
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