throbber

`
`UNITED STATES PATENT AND TRADEMARK OFFICE
`
`BEFORE THE PATENT TRIAL AND APPEAL BOARD
`
`MYLAN PHARMACEUTICALS, INC.
`
`Petitioner
`
`v.
`
`YEDA RESEARCH AND DEVELOPMENT CO. LTD.
`
`Patent Owner
`
`Case No. IPR2017-00195
`Patent No. 9,155,776
`
`DECLARATION OF DANIEL WYNN, M.D., IN SUPPORT OF PATENT
`OWNER YEDA’S PRELIMINARY RESPONSE TO PETITION FOR
`INTER PARTES REVIEW
`
`
`
`
`
`
`
`
`
`
`
`
`
`
`
`
`
`Page 1 of 92
`
`YEDA EXHIBIT NO. 2001
`MYLAN PHARM. v YEDA
`IPR2017-00195
`
`

`

`
`
`I.
`
`INTRODUCTION
`1.
`
`I, Daniel R. Wynn, M.D., have personal knowledge of the facts set
`
`forth in this Declaration and am competent to testify to these facts.
`
`2.
`
`I have been retained by counsel for Teva (Teva Pharmaceuticals USA,
`
`Inc., Teva Pharmaceutical Industries Ltd., Teva Neuroscience, Inc.) on behalf of
`
`Yeda Research and Development Co. Ltd. (“Patent Owner”) in this proceeding
`
`regarding U.S. Patent No. 9,155,776 (“the ’776 patent”).
`
`3.
`
`I hereby offer this Declaration in support of Patent Owner’s
`
`Preliminary Response to Petition for Inter Partes Review.
`
`4.
`
`A list of materials that I have reviewed is attached hereto as Exhibit B.
`
`II. QUALIFICATIONS AND EXPERIENCE
`5.
`I graduated from Reed College in Portland Oregon in 1977, after
`
`which I attended the Chicago Medical School, receiving my M.D. in 1983.
`
`6.
`
`I was a Resident in the Neurology Residency Program at the Mayo
`
`Graduate School of Medicine in Rochester, Minnesota from 1983 through 1988. I
`
`have also held fellowships at the Mayo Graduate School of Medicine in
`
`Neurophysiology.
`
`7.
`
`I have been a licensed medical doctor since graduating medical school
`
`in 1983 and board certified in Neurology since 1988. I currently serve as Director
`
`of Clinical Research of Consultants in Neurology, Ltd. in Northbrook, Illinois. I
`
`
`
`2
`
`Page 2 of 92
`
`YEDA EXHIBIT NO. 2001
`MYLAN PHARM. v YEDA
`IPR2017-00195
`
`

`

`
`
`am also member of the Clinical Advisory Committee of the Greater Illinois
`
`Chapter of the National Multiple Sclerosis Society. I have served as a research
`
`reviewer for a number of journals, including the Journal of Neuroscience and the
`
`Journal of NeuroRehabilitation and Neural Repair.
`
`8.
`
`I have authored more than 120 journal articles, book chapters,
`
`abstracts, and other publications relating primarily to the diagnosis and treatment
`
`of multiple sclerosis (“MS”).
`
`9.
`
`I have extensive experience in the diagnosis and treatment of multiple
`
`sclerosis. Over the last 25 years, I have treated thousands of patients with MS. In
`
`that role, I have also gained extensive experience with the adverse events
`
`associated with multiple sclerosis treatment—including those associated with
`
`glatiramer acetate (“GA”) therapy—and the detrimental, unforgiving impact that
`
`such adverse events have on patient treatment adherence and quality of life. As
`
`such, a large amount of my MS practice has been, and remains, focused on
`
`minimizing the adverse events associated with multiple sclerosis therapy and
`
`maximizing the efficacy of such treatment.
`
`10.
`
`I have over twenty years of experience with Copaxone®, which is the
`
`most commonly used MS therapy in the United States. I have used Copaxone® 20
`
`mg/mL extensively in the treatment of my patients with multiple sclerosis since its
`
`approval in 1996 for the treatment of relapsing forms of MS, the most common
`
`
`
`3
`
`Page 3 of 92
`
`YEDA EXHIBIT NO. 2001
`MYLAN PHARM. v YEDA
`IPR2017-00195
`
`

`

`
`
`forms of MS. In fact, over the last few years, Copaxone® has been the most
`
`common disease modifying treatment I have prescribed to patients to treat
`
`relapsing forms of MS. Moreover, since the 40 mg/mL three times weekly dosage
`
`form of Copaxone® was approved by the FDA in early 2014, most of my patients
`
`taking Copaxone® 20 mg/mL have switched to Copaxone® 40 mg/mL.
`
`11.
`
`I have been actively involved in numerous MS clinical research trials
`
`involving a number of different drug therapies and have served as an investigator
`
`in Phase II, III and IV studies. I have participated in more than eighty-five clinical
`
`trials and extension studies as an investigator.
`
`12. Many of these clinical research trials involved the drug product
`
`Copaxone® or related GA therapies. For example, I took part in the following
`
`clinical trials:
`
` A multi-national, multi-center, randomized, double-blind, placebo-controlled
`
`study to evaluate the efficacy, tolerability, and safety of two doses of
`
`glatiramer acetate orally administered in Relapsing Remitting Multiple
`
`Sclerosis (“CORAL”);
`
` A multi-national, multi-center, double-blind, placebo-controlled study to
`
`evaluate the efficacy, tolerability, and safety of glatiramer acetate for
`
`injection in Primary Progressive Multiple Sclerosis patients (“PROMISE”);
`
`
`
`4
`
`Page 4 of 92
`
`YEDA EXHIBIT NO. 2001
`MYLAN PHARM. v YEDA
`IPR2017-00195
`
`

`

`
`
`
`
` A multi-center, randomized, double-blind, parallel group study to evaluate
`
`the efficacy, tolerability and safety of 40 mg of Copaxone in the treatment of
`
`relapsing remitting multiple sclerosis patients. Protocol #9006, 2003. (Phase
`
`2);
`
` A multi-national, multi-center, randomized, parallel-group, double-blind
`
`study, to compare the efficacy, tolerability, and safety of Glatiramer Acetate
`
`40 mg/ml and glatiramer Acetate 20 mg/ml administered once daily by
`
`subcutaneous injection in patients with relapsing multiple sclerosis (R-MS)
`
`(“FORTE”);
`
` An open-label, multi-center, randomized study evaluating the tolerability
`
`and safety of two formulations of glatiramer acetate (GA) for Subcutaneous
`
`Injection (“SONG”);
`
` A multi-national, multi-center, randomized, parallel-group, double-blind,
`
`placebo-controlled study performed in subjects with relapsing-remitting
`
`multiple sclerosis to assess the efficacy, safety and tolerability of glatiramer
`
`acetate (GA) 20 mg/0.5 ml New Formulation Administered Daily by
`
`Subcutaneous Injection (“GLOW”);
`
` A multi-national, multi-center, randomized, parallel-group study performed
`
`in subjects with Relapsing-Remitting Multiple Sclerosis (RRMS) to assess
`
`the efficacy, safety and tolerability of Glatiramer Acetate (GA) injection 40
`
`5
`
`Page 5 of 92
`
`YEDA EXHIBIT NO. 2001
`MYLAN PHARM. v YEDA
`IPR2017-00195
`
`

`

`
`
`mg/ml administered three times a week compared to placebo in a double-
`
`blind design (“GALA”);
`
` An open-label, randomized, multi-center study to assess safety and
`
`tolerability of glatiramer acetate 40 mg/1mL 3-times weekly versus 20
`
`mg/1mL daily in patients with relapsing-remitting multiple sclerosis
`
`(“GLACIER”); and
`
` A multi-national, multi-center, randomized, parallel group, open-label study
`
`to assess medication satisfaction in patients with relapsing remitting multiple
`
`sclerosis (RRMS) treated with subcutaneous injections
`
`of Copaxone® (glatiramer acetate) 40 mg/mL three times a week compared
`
`to 20 mg/mL daily (“CONFIDENCE”).
`
`13. A copy of my curriculum vitae, which provides additional information
`
`about my background, experience, and publications, is attached as Exhibit A.
`
`III. LEGAL PRINCIPLES
`14.
`In forming my opinions and conclusions in this report, I have been
`
`provided with an overview of the prevailing principles of U.S. patent law that
`
`govern the issues of patent claim interpretation and validity.
`
`15.
`
`I have been informed by counsel that claims should be construed by
`
`giving them their broadest reasonable interpretation consistent with the
`
`
`
`6
`
`Page 6 of 92
`
`YEDA EXHIBIT NO. 2001
`MYLAN PHARM. v YEDA
`IPR2017-00195
`
`

`

`
`
`specification from the perspective of a person of ordinary skill in the art as of the
`
`time of the invention.
`
`16.
`
`I have been informed by counsel that an issued patent claim is invalid
`
`as obvious if it can be shown that the differences between the patented subject
`
`matter and the prior art are such that the subject matter as a whole would have been
`
`obvious, at the time the invention was made, to a person having ordinary skill in
`
`the art. Relevant considerations include the level of ordinary skill in the art, the
`
`scope and content of the prior art, any differences between the prior art and the
`
`asserted claims, and the so-called objective secondary considerations of
`
`nonobviousness.
`
`17.
`
`I have been informed by counsel that obviousness must be established
`
`by a preponderance of the evidence. I understand this to mean that, for a claim to
`
`be found invalid as obvious, it must be found more probable than not to be
`
`obvious.
`
`18.
`
`I have been informed by counsel that in order to evaluate the
`
`obviousness of the claims of the ’776 patent over a given prior art combination, I
`
`should analyze whether the prior art references, included collectively in the
`
`combination, disclose each and every element of the allegedly invalid claim as
`
`those references are read by the person of ordinary skill in the art at the time of the
`
`invention. Then I am to determine whether that combination makes the claims of
`
`
`
`7
`
`Page 7 of 92
`
`YEDA EXHIBIT NO. 2001
`MYLAN PHARM. v YEDA
`IPR2017-00195
`
`

`

`
`
`the ’776 patent obvious to the person of ordinary skill in the art by a preponderance
`
`of the evidence, at the time of the invention.
`
`19.
`
`I have been informed by counsel that there must be some showing that
`
`a person of ordinary skill in the art would have been motivated to combine such
`
`prior art references and that there would have been a reasonable expectation of
`
`successfully achieving the claimed invention from such combination in order to
`
`support an obviousness determination.
`
`20.
`
`I have been informed by counsel that, in considering the obviousness
`
`of a claimed invention, one should not view the invention and the prior art with the
`
`benefit of hindsight. I understand that for this reason, obviousness is assessed by
`
`the person of ordinary skill in the art at the time the invention was made in light of
`
`the prior art as a whole. In this regard, I have been informed that the invention
`
`cannot be used as a guide to selecting and understanding the prior art.
`
`21.
`
`I have been informed that a reference may be said to teach away when
`
`a person of ordinary skill, upon reading the reference, would be discouraged from
`
`following the path set out in the reference, or would be led in a direction divergent
`
`from the path that was taken by the applicant.
`
`22.
`
`I have been informed that the “time of invention” applicable to the
`
`inventions of the claims of the ’776 patent is August 20, 2009 (which I understand
`
`to be the earliest priority date of the parent application resulting in the ’776 patent).
`
`
`
`8
`
`Page 8 of 92
`
`YEDA EXHIBIT NO. 2001
`MYLAN PHARM. v YEDA
`IPR2017-00195
`
`

`

`
`
`IV. PERSON OF ORDINARY SKILL IN THE ART
`23.
`I understand that the Patent Trial and Appeals Board has determined
`
`that a person of ordinary skill in the art pertaining to the subject matter of the
`
`several patents related to the ’776 patent at the time of the invention would have
`
`had: (1) several years of experience in the pharmaceutical industry or in practicing
`
`medicine; (2) experience with the administration or formulation of therapeutic
`
`agents, dosing schedules and frequencies, and drug developmental study and
`
`design; (3) a Ph.D. in pharmacology or be a physician with experience in clinical
`
`pharmacology; and (4) experience with MS and GA. I agree with this definition of
`
`a person of ordinary skill in the art and have applied it herein when describing my
`
`opinions.
`
`V.
`
`SUMMARY OF OPINIONS
`24. A person of ordinary skill in the art would have understood that
`
`“severity of injection site reactions” means “intensity of injection site reactions.”
`
`The claim term “reduced severity of injection site reactions” is not coextensive
`
`with “improved tolerability.” Rather, tolerability is a broader concept than severity
`
`of injection site reactions. Improvements in tolerability of GA treatment can occur
`
`without a reduction in the severity of injection site reactions.
`
`25. As of August, 2009, the person of ordinary skill in the art would not
`
`have possessed a reasonable expectation that GA administered at a dose of 40
`
`
`
`9
`
`Page 9 of 92
`
`YEDA EXHIBIT NO. 2001
`MYLAN PHARM. v YEDA
`IPR2017-00195
`
`

`

`
`
`mg/mL given three times weekly would have reduced severity of injection site
`
`reactions compared with 20 mg/mL of GA administered daily.
`
`VI. BACKGROUND ON MS AND COPAXONE
`A. Multiple sclerosis is a debilitating disease of the central nervous
`system
`26. MS is an unforgiving, chronic, progressive, irreversible, disabling
`
`disease that is believed to affect over 2 million people worldwide. A diagnosis of
`
`MS is a life-altering and life-long event. There is no cure for MS and its impact on
`
`individual patients is often devastating, both physically and emotionally. It almost
`
`invariably affects a patient’s ability to work and interact with others and can cause
`
`a varied range of symptoms including paralysis, cognitive impairment, loss of
`
`vision, incontinence of bowel and bladder, imbalance, spasticity, loss of sensation
`
`and/or tingling, pain, fatigue, sexual dysfunction, tremors, depression, problems
`
`with memory and concentration, and anxiety. (Ex. 20161.) As a consequence of
`
`these and other disabilities, individuals living with MS typically experience shorter
`
`lifespans with markedly reduced quality of life, affecting personal, vocational,
`
`familial and spiritual goals.
`
`27. MS is viewed primarily as an inflammatory disease of central nervous
`
`system (“CNS”) myelin, a fatty tissue that surrounds and protects nerve axons in
`
`
`1 Noseworthy J.H. et al., Multiple Sclerosis, N ENGL. J. MED. 2000; 343:938-952.
`
`
`
`10
`
`Page 10 of 92
`
`YEDA EXHIBIT NO. 2001
`MYLAN PHARM. v YEDA
`IPR2017-00195
`
`

`

`
`
`the brain, spinal cord, and optic nerves. Myelin facilitates the conduction of
`
`electrochemical signals in the CNS and preserves the health of the nerves. MS
`
`results in the degeneration of myelin. As myelin and the nerve fibers it protects are
`
`damaged or destroyed, the ability of the nerves to conduct electrical impulses to
`
`and from the brain, spinal cord and optic nerves are disrupted. These injuries
`
`cause scars, or plaques, to form in the CNS, including the brain. Depending on the
`
`location of the damage to the CNS, MS can cause disabling “attacks” or “relapses,”
`
`which lead to one or more of the MS symptoms discussed above. The formation of
`
`these lesions is what gave the disease its name—“multiple sclerosis” refers to the
`
`multiple scars frequently observed in the CNS of MS patients.
`
`28. MS can be categorized in two ways, relapsing onset MS and
`
`progressive onset MS. Patients only have one form of the disease. Each form
`
`maybe be caused by distinct biological (or pathological) mechanisms. Eighty five
`
`percent (85%) of patients begin with relapsing MS. Id.
`
`29. The relapsing form of the disease is defined by recurring attacks on
`
`the CNS which result in a magnified disability during the relapse itself. These
`
`attacks, often called “relapses,” are followed by recovery periods called
`
`“remissions,” which can last from months to years, during which new symptoms
`
`improve partially or completely and the patient’s neurological condition is
`
`relatively stable. Even during these remission periods, however, disability can
`
`
`
`11
`
`Page 11 of 92
`
`YEDA EXHIBIT NO. 2001
`MYLAN PHARM. v YEDA
`IPR2017-00195
`
`

`

`
`
`progress as new lesions continue to form, even in the absence of an apparent
`
`relapse of clinical symptoms. (Ex. 20172.)
`
`30. Relapses are caused by lesions or scarring in the CNS that disrupt
`
`nerve signals. Relapses vary in length, severity, and symptoms. There is currently
`
`no way to predict the timing, frequency, or duration of relapses, thus it is important
`
`for patients to adhere to continuous treatment to reduce the risk of relapses, even
`
`during relapse free periods. Relapses cause new symptoms or worsening of old
`
`symptoms, including common MS symptoms such as the permanent loss of vision,
`
`use of limbs, and cognitive function. Such disabilities clearly disrupt personal,
`
`vocational, and relationship goals.
`
`31. One measure of patients’ disability is the EDSS (“Expanded
`
`Disability Status Scale”), which is the most widely used and known scale to assess
`
`changes in disability in MS. It was developed in the 1950s and refined in the
`
`1980s to provide a standardized measure of global neurological impairment in MS.
`
`It is commonly used by both clinicians and investigators in clinical studies to
`
`quantify a patient’s disability. EDSS has frequently been used as a component of
`
`the primary or secondary outcomes in clinical trials.
`
`
`2 De Stefano, N. et al., Assessing brain atrophy rates in a large population of
`
`untreated multiple sclerosis subtypes. NEUROLOGY 2010; 74:1868-1876.
`
`
`
`12
`
`Page 12 of 92
`
`YEDA EXHIBIT NO. 2001
`MYLAN PHARM. v YEDA
`IPR2017-00195
`
`

`

`
`
`32. While relapses are often significant clinical events resulting in at least
`
`temporary disability of some kind, MS also works on a subclinical level to
`
`gradually impair CNS function, resulting in a gradual and accumulating level of
`
`disability. Up to 40% of relapses do not completely resolve, leaving patients with
`
`accumulating, permanent disability. (Ex. 20183.) In addition, MS causes lesions
`
`that do not result in a detectable clinical relapse or attack but that do damage or
`
`destroy brain tissue, resulting in a loss of tissue known as brain atrophy. (Exhibit
`
`20194.) This loss of brain tissue, which occurs during the onset of the disease even
`
`before physical symptoms arise, is the closest correlate to irreversible disability
`
`later in the disease. (Exhibit 20205.)
`
`33. There is a disconnect between lesions and overt clinical relapses in
`
`that many lesions do not cause overt symptoms when they form. Nevertheless,
`
`
`3 Lublin, F.D. et al., Effect of relapses on development of residual deficit in
`
`multiple sclerosis. NEUROLOGY 2003; 61:1528-1532.
`
`4 Paolillo, A. et al., The Relationship between inflammation and atrophy in
`
`clinically isolated syndromes suggestive of multiple sclerosis: A monthly MRI
`
`study after triple-dose gadolinium-DTPA. J. NEUROL. (2004) 251: 432-439.
`
`5 Fisniku, L.K. et al. Gray Matter Atrophy Is Related to Long-Term Disability in
`
`Multiple Sclerosis. Ann. Neurol. 2008; 64:247-254.
`
`
`
`13
`
`Page 13 of 92
`
`YEDA EXHIBIT NO. 2001
`MYLAN PHARM. v YEDA
`IPR2017-00195
`
`

`

`
`
`these lesions still have a cumulative effect upon the CNS that ultimately leads to
`
`loss of function. (Exhibit 20216; 20227.)
`
`34. After a variable period of time, patients enter the progressive phase
`
`where relapses decrease in frequency and they experience a steady, inexorable loss
`
`of physical and cognitive function.
`
`B. Copaxone is effective for treating MS
`35. Glatiramer acetate, or GA, is the active ingredient in Copaxone®, a
`
`drug product first approved by the FDA in 1996 as a 20 mg daily subcutaneous
`
`injection to treat relapsing-remitting multiple sclerosis. The 20 mg daily dose of
`
`GA was known to reduce the frequency of relapses in patients with relapsing MS.
`
`(Ex. 20048 (Johnson)) For many years, Copaxone® has been the single most
`
`prescribed disease modifying therapy used by clinicians to treat MS.
`
`
`6 Filippi, M., et al. The contribution of MRI in assessing cognitive impairment in
`
`multiple sclerosis. Neurology 2010; 75: 2121-2128.
`
`7 Rovaris, M. et al. Cognitive impairment and structural brain damage in benign
`
`multiple sclerosis. Neurology 2008; 71:1521-1526.
`
`8 Johnson KP, Brooks BR, Cohen JA, et al. Copolymer 1 reduces relapse rate and
`
`improves disability in relapsing-remitting multiple sclerosis: Results of a phase III
`
`multicenter, double-blind, placebo-controlled trial. Neurology 1995; 45: 1268-76.
`
`
`
`14
`
`Page 14 of 92
`
`YEDA EXHIBIT NO. 2001
`MYLAN PHARM. v YEDA
`IPR2017-00195
`
`

`

`
`
`36. GA is a complex mixture of synthetic polypeptides of varying length
`
`and sequence, nearly randomly composed of four amino acids. GA is not a single
`
`molecule and, due to the complexity and variability of its polypeptide mixture, a
`
`clear definition of how GA functions to treat MS has not been established.
`
`37.
`
`In the clinical trial that led to approval of GA, administration of 20 mg
`
`GA daily was shown to decrease the average relapse rate by 29%, from 0.84
`
`relapses per year for patients receiving a placebo to 0.59 relapses per year for
`
`treated patients. (Ex. 2004 at 1272.) And, following two years of treatment with
`
`20 mg GA daily, the median time to first relapse after treatment started increased
`
`from 198 days with placebo to 287 days for treated patients. (Id.) While the
`
`frequency of relapses, averaged over many patients, is lower for patients on GA
`
`treatment than for patients on placebo, the nature of relapses remains intermittent,
`
`with unpredictable frequency and timing for each individual patient.
`
`38. From its introduction in 1996 until January 2014, 20 mg daily
`
`injection Copaxone® was the only approved GA treatment for the treatment of
`
`relapsing MS. While the Copaxone® 20 mg dosage form was widely accepted by
`
`patients due to its safety and efficacy profile, the frequency and severity of
`
`injection related adverse events associated with the drug limited its tolerability.
`
`This issue led some patients to discontinue treatment with GA and also impacted
`
`the long-term adherence of patients prescribed the 20 mg/mL once daily
`
`
`
`15
`
`Page 15 of 92
`
`YEDA EXHIBIT NO. 2001
`MYLAN PHARM. v YEDA
`IPR2017-00195
`
`

`

`
`
`formulation, which in turn necessarily limited the treatment’s long-term “real-
`
`world” efficacy.
`
`39. Since the launch of the Copaxone® 20 mg/mL daily dose product,
`
`Teva has undertaken efforts to develop alternate dosing regimens of GA. Until
`
`2009, the literature reported only a few small studies explored alternate day
`
`injections of 20 mg GA. But, none of those studies: (1) tested doses other than 20
`
`mg; (2) tested a three times per week regimen; or (3) reported a decrease in the
`
`severity of injection site reactions with an increased dose. In fact, none of these
`
`studies prior to 2009 had an effect on the standard of care concerning GA. Persons
`
`of ordinary skill in the art continued to advise patients to administer daily
`
`injections of GA 20 mg/mL because robust clinical trial data supported the safety
`
`and efficacy of daily injections of 20 mg/mL of GA. Such robust clinical data did
`
`not exist for any other dosing regimens.
`
`40. Additional studies studied 40 mg/mL daily administration (Cohen
`
`study and the FORTE study). These 40 mg/mL studies universally concluded: (1)
`
`that an increased dose did not provide any added efficacy over the 20 mg/mL GA
`
`daily regimen; and (2) the increased dose resulted in increased severity of injection
`
`site reactions, as was expected from a higher and more concentrated dose. None of
`
`these 40mg/mL trials studied a dosing regimen less frequent than daily. Again,
`
`none of these trials changed the standard of care for GA as of 2009.
`
`
`
`16
`
`Page 16 of 92
`
`YEDA EXHIBIT NO. 2001
`MYLAN PHARM. v YEDA
`IPR2017-00195
`
`

`

`
`
`C. Adverse events from GA therapy impacts patient adherence
`41. For a physician treating MS patients with GA, much of the day to day
`
`work is actually focused upon treating the symptoms of MS, which includes
`
`managing and minimizing the adverse impacts associated with MS therapy. When
`
`compared with the terrible symptoms of MS, it may seem counterintuitive that the
`
`tolerability of GA treatment could be so important. However, the slow and often
`
`invisible progression of the disease means that the adverse events that arise from
`
`GA treatment often are an initial major contributor to an MS patient’s diminished
`
`quality of life during therapy.
`
`42. The observable symptoms of MS are often minor during the initial
`
`phases of the disease. At the outset of the disease, MS symptoms are usually
`
`sensory in nature, frequently involving localized numbness or tingling or periods
`
`of visual loss. Several studies have shown that the earlier a patient starts treatment
`
`the better—i.e. earlier treatment leads to more efficacy in reducing patient relapse
`
`rates. Therefore it is critically important that MS treatments be tolerable to
`
`patients, especially in the early stages of therapy. Tolerability is important because
`
`if the treatment if more tolerable it is more likely that patients will consistently
`
`adhere to the prescribed regimen. Tolerability problems that cause patients to miss
`
`doses can have long-term consequences for the progression of MS.
`
`
`
`17
`
`Page 17 of 92
`
`YEDA EXHIBIT NO. 2001
`MYLAN PHARM. v YEDA
`IPR2017-00195
`
`

`

`
`
`43. Patients who experience severe adverse events from treatment are
`
`more prone to switch to a different therapy or discontinue treatment, either
`
`temporarily or permanently. Severe adverse events are the most serious and cause
`
`the most disruption in a patient’s life. Severe adverse events are therefore the most
`
`intolerable adverse events and most likely to lead to a decision that a patient cannot
`
`sustain GA treatment. In other words, the number of subjects discontinuing GA
`
`therapy correlates to the severity of adverse events associated with GA injections.
`
`44. Moreover, patients who are having difficulty adhering to GA therapy
`
`often refrain from reporting relapses or other complications associated with MS to
`
`their physician due to their unwillingness to disclose that they are not adhering to
`
`the prescribed treatment. This silence can lead to a worsening of the disease and
`
`continued irreversible damage to the central nervous system. The fact that, as
`
`noted above, the majority of patients on MS disease modifying therapies exhibit
`
`cognitive deficits means that the negative psychological impact of such adverse
`
`events can also exceed what a treating physician might initially expect.
`
`45. Due to the importance of patient adherence, it is therefore critical that
`
`MS therapies be both tolerable in addition to safe and efficacious. Because MS is
`
`currently an incurable disease patients often receive MS treatment for decades.
`
`Therefore, a physician deciding on an MS treatment for their patient must balance
`
`
`
`18
`
`Page 18 of 92
`
`YEDA EXHIBIT NO. 2001
`MYLAN PHARM. v YEDA
`IPR2017-00195
`
`

`

`
`
`safety and efficacy with tolerability to ensure the patient adheres to the treatment
`
`over the long-term.
`
`46.
`
`In addition to the problems of adherence associated with severe
`
`adverse reactions, there remains the long term impacts—both physical and
`
`emotional—on patient quality of life that such adverse events can cause. In my
`
`experience, patients talking once daily Copaxone® to treat their MS often suffer
`
`acute injection related adverse events. Many of these once daily patients
`
`complained more of the side effects of such treatment than of any symptoms
`
`arising early in the course of the disease. Even when those patients maintained
`
`their adherence to the therapeutic regimen, it was clear to me that more was needed
`
`to be done to improve the tolerability of treatment.
`
`47. The most common adverse events associated with Copaxone®
`
`therapy are injection site reactions. 90% of patients taking 20 mg of GA daily in
`
`the original Phase III trial that led to approval of Copaxone experienced injection
`
`site reactions. (Ex. 2004 at 1272.) Injection site reactions can vary, with some
`
`reactions resulting in redness or swelling around the injection site, prolonged pain,
`
`masses at the site of injection, permanent scaring with hardness, discoloration, or
`
`loss of subcutaneous tissue in or around the injection site.
`
`
`
`19
`
`Page 19 of 92
`
`YEDA EXHIBIT NO. 2001
`MYLAN PHARM. v YEDA
`IPR2017-00195
`
`

`

`
`
`48. For example, many patients experience large urticarial reactions,
`
`which commonly present as a burning sensation, often followed by raised welts
`
`and localized stinging which may last for days.
`
`49. Patients can also often suffer erythema, or areas of skin redness and
`
`flushing, that can extend far beyond the injection site. While these flushed areas
`
`are often not directly painful, many of my patients have reported self-
`
`consciousness from such marks, especially those who hoped to keep their disease
`
`private. Some have reported that they were questioned at work, or threatened with
`
`loss of employment based on the misunderstanding that such marks might be
`
`associated with illegal drug use.
`
`50. Possibly the most disfiguring injection site reaction is lipoatrophy, or
`
`the localized loss of fatty tissue. Lipoatrophy presents in the creation of permanent
`
`cavities or hollows beneath a patient’s skin in areas where injections are given.
`
`Because the damage is irreversible, the physical and psychological impact of
`
`lipoatrophy cannot be overstated.
`
`51.
`
`In my experience treating MS, the impact of such injection site
`
`reactions is nontrivial. In addition to often being painful and disfiguring, some
`
`injection site reactions become necrotic and infected. Some injection site reactions
`
`can become so severe as to require extended antibiotic courses, surgical drainage,
`
`debridement, and surgical closure. These injection site reactions also can lead to
`
`
`
`20
`
`Page 20 of 92
`
`YEDA EXHIBIT NO. 2001
`MYLAN PHARM. v YEDA
`IPR2017-00195
`
`

`

`
`
`significant physical and emotional discomfort for patients. In some instances the
`
`discomfort for patients is so severe the patient completely discontinues treatment,
`
`allowing the disease to progress. I have had a number of patients describe to me
`
`the psychological impact of living with such reactions, and the effect of injection
`
`site reactions on their desire not to broadcast their diseased condition to others
`
`including co-workers, bosses, friends, and family. Therefore, as of 2009 there was
`
`a clinical need for an MS treatment that reduced the severity of these adverse
`
`events but maintained the efficacy of GA.
`
`52.
`
`Immediate post-injection reactions (“IPIRs”) are distinct from
`
`injection site reactions. IPIRs generally occur within a few minutes of injecting
`
`Copaxone®, are systemic in nature, and can involve flushing (feeling of warmth
`
`and/or redness), chest pain, heart palpitations, panic or anxiety, and trouble
`
`breathing. In some instances these symptoms may last only 15 minutes or may
`
`persist for hours.
`
`53. The shortness of breath associated with IPIRs may lead to reflex
`
`hyperventilation. Hyperventilating patients unknowingly fill their stomachs with
`
`air which in turn causes acute chest pain, leading many to feel they are
`
`experiencing a heart attack. This leads some patients to call paramedics and other
`
`healthcare professionals. Additionally, as many patients schedule their
`
`
`
`21
`
`Page 21 of 92
`
`YEDA EXHIBIT NO. 2001
`MYLAN PHARM. v YEDA
`IPR2017-00195
`
`

`

`
`
`Copaxone® injections often early in the morning or late at night, IPIRs lead many
`
`patients into emergency wards.
`
`54. Although less common than injection site reactions, IPIRs are often
`
`extremely frightening to patients. Thus, patients may discontinue therapy entirely
`
`after suffering even a single IPIR, and the severity of IPIRs is a significant concern
`
`for patients and physicians.
`
`55. For these reasons, and others, the promise of less severe side effects
`
`by a change in product formulation and schedule without a compromise in product
`
`efficacy is a highly sought after goal, promising increased real world benefit
`
`through increased adherence to therapy and increased patient quality of life.
`
`VII. DISCUSSION AND OPINIONS
`A. The ’776 Patent
`1.
`Claims
`56. The claims of the ’776 patent relate to methods of treating MS or
`
`improving the tolerability of GA by administering a new dosing regimen that has
`
`reduced severity of adverse events associated with GA treatment while maintaining
`
`effectiveness for treating MS. The new dosing regimen is 40 mg of GA
`
`administered three times per week with at least one day between doses.
`
`57. Claim 1 of the ’776 patent states:
`
`1. A method of treating a human patient suffering from a
`relapsing form of multiple sclerosis, while inducing reduced
`severity of injection site reactions in the human patient relative to
`22
`
`
`
`Page 22 of 9

This document is available on Docket Alarm but you must sign up to view it.


Or .

Accessing this document will incur an additional charge of $.

After purchase, you can access this document again without charge.

Accept $ Charge
throbber

Still Working On It

This document is taking longer than usual to download. This can happen if we need to contact the court directly to obtain the document and their servers are running slowly.

Give it another minute or two to complete, and then try the refresh button.

throbber

A few More Minutes ... Still Working

It can take up to 5 minutes for us to download a document if the court servers are running slowly.

Thank you for your continued patience.

This document could not be displayed.

We could not find this document within its docket. Please go back to the docket page and check the link. If that does not work, go back to the docket and refresh it to pull the newest information.

Your account does not support viewing this document.

You need a Paid Account to view this document. Click here to change your account type.

Your account does not support viewing this document.

Set your membership status to view this document.

With a Docket Alarm membership, you'll get a whole lot more, including:

  • Up-to-date information for this case.
  • Email alerts whenever there is an update.
  • Full text search for other cases.
  • Get email alerts whenever a new case matches your search.

Become a Member

One Moment Please

The filing “” is large (MB) and is being downloaded.

Please refresh this page in a few minutes to see if the filing has been downloaded. The filing will also be emailed to you when the download completes.

Your document is on its way!

If you do not receive the document in five minutes, contact support at support@docketalarm.com.

Sealed Document

We are unable to display this document, it may be under a court ordered seal.

If you have proper credentials to access the file, you may proceed directly to the court's system using your government issued username and password.


Access Government Site

We are redirecting you
to a mobile optimized page.





Document Unreadable or Corrupt

Refresh this Document
Go to the Docket

We are unable to display this document.

Refresh this Document
Go to the Docket