Patent Valuation, Monetization and Investments

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Markman Advisors Patent Blog

by Zachary Silbersher

Posts tagged Teva
Korlym: What do the post-trial briefs say about what happened at trial?

In late September, Corcept Therapeutics finally went to trial against Teva in the parties’ long-running patent dispute over Teva’s prospective generic for Korlym.  The Hatch-Waxman litigation between the two companies has been waging since 2018.  Numerous patents have come in and out of the case over that time.  Yet, by the time of the trial a few weeks ago, Corcept had narrowed its case down to alleging Teva’s infringement of only two patents: U.S. Patent No. 10,195,214 and 10,842,800.  The parties’ post-trial brief have been filed.  What do they say?

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Will “method-of-use thickets” grow from SCOTUS denial of the GSK v. Teva skinny label case?

Bad facts make bad law.  The case of GlaxoSmithKline’s lawsuit over Teva’s generic Coreg® drug is a case-in-point.  I previously blogged about the case here and here.  Given that the Supreme Court declined to grant certiorari, we’re now stuck with Federal Circuit precedent holding that a generic can still face liability for induced infringement of a method-of-use patent covering a section viii carved-out indication.  What will be the consequences of this?

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Why did Corcept’s piecemeal litigation tactics for Korlym finally backfire?

Corcept Therapeutics has been battling for years to halt Teva’s generic for Korlym®.  Although Corcept started off with only two patents, it has been adding patents to the Orange Book ever since Teva’s ANDA was filed.  By periodically litigating those patents in piecemeal fashion, Corcept has delayed generic Korlym®’s availability to consumers at lower-cost prices.  Yet, in a recent order, the court finally called out Corcept’s delay tactics and indicated it would award attorneys’ fees.  What happened?

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What is at the heart of the GSK skinny-label standoff at the CAFC?

I previously blogged about the surprising case, GlaxoKlineSmith v. Teva (GSK), where the Federal Circuit held that a generic pharmaceutical company can, under the right circumstances, be liable for inducing infringement of a method-of-use pharmaceutical patent despite carving out the patented indication from its label. The decision at first spooked the generic pharmaceutical industry, but was then followed by two additional opinions—one related to a panel rehearing, followed by another one, which issued on February 11, 2022, denying a hearing en banc, which included a fiery dissent. These decisions show clear disagreements among the Judges at the Federal Circuit. What is at the heart of this dispute?

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Will Amarin’s new cardiovascular patent lawsuit against Hikma keep out generic sales?

The battle continues. We previously wrote about the Federal Circuit’s decision in the case (GlaxoSmithKline v. Teva) and how that case may offer Amarin another chance to bar generics from the market for Vascepa®. Sure enough, on November 30, Amarin filed suit against Hikma asserting three patents covering use of EPA to treat cardiovascular events. What are the takeaways from this suit?

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Can Amarin benefit from the GSK v. Teva decision regarding induced infringement for off-label sales?

Just when you think the Amarin saga to keep out generic competition is over, something else happens. In the latest development, the Federal Circuit issued a precedential decision in an unrelated case (GlaxoSmithKline v. Teva) that suggests that a generic could potentially be liable for inducing infringement of a patented indication, even though that indication has been carved out of the generic’s label. Will this decision benefit Amarin?

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Can Amarin’s patents protect Vascepa from generics?

Amarin Pharmaceuticals ($AMRN) will be going to trial soon to protect Vascepa® against generic competition.  Amarin has asserted 15 claims from six patents against ANDAs filed by Hikma, Dr. Reddy’s and Teva.  What are the issues to be addressed at trial?

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Will Teva’s PGR against Corcept’s ‘214 patent covering Korlym be instituted?

The saga over Corcept Therapeutics’s ($CORT) patent battles against prospective generics for Korlym® is approaching another stage.  We previously discussed Teva’s ($TEVA) petition for post-grant review (PGR) of the ‘214 patent.  Corcept has filed its preliminary response to Teva’s PGR, and the PTAB is scheduled to decide whether or not to institute the PGR by about November 23, 2019.  The ‘214 patent is potentially the strong patent Corcept is currently wielding against generics, since it arguably does read upon Korlym®’s label.  Now that the papers are in, what are the odds Teva’s PGR is instituted? 

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Korlym® faces another potential generic from Sun Pharma

Another generic has filed an ANDA with the FDA for a license to distribute a generic version of Korlym®.  Teva is no longer the only company seeking to sell generic Korlym®, which therefore increases the likelihood that Corcept Therapeutics ($CORT) will face a generic competitor for its main drug at some point in the future.

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Another reason drug prices are too high: drug companies can patent an FDA mandate.

High drug prices remain in the news.  A recent precedential decision from the Federal Circuit shows that certain drug prices will stay high if drug companies can simply take a mandate from the FDA, which was not their idea, and file a patent on it, thereby cornering the market on all IP around that mandate.  The case is Endo Pharmaceuticals Inc. v. Actavis, LLC, Case No. 2018-1054 (Fed. Cir. May 3, 2019).

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Federal Circuit clarifies patent-eligibility for diagnostic method patents: Endo v. Teva and Natural Alternatives v. Creative Compounds.

The Federal Circuit has recently issued two precedential decisions that clarify when method-of-use and diagnostic patents are directed to eligible subject matter rather than natural laws.  Some clear guidelines are solidifying that should make enforcement of these principally pharmaceutical-type patents easier to handicap.

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Is Corcept’s new Korlym lawsuit a game-changer against Teva?

Corcept Therapeutics ($CORT) recently filed a new lawsuit against Teva ($TEVA) related to Teva’s proposed generic for Korlym®.  The new suit asserts three new patents that were recently listed in the Orange Book.  Are the three new patents a game-changer?

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Did Corcept and Teva tell the Court they are about to settle the Korlym patent dispute?

On January 10, counsel for Corcept ($CORT) filed a letter with the Court in the pending patent litigation against Teva ($TEVA) over its proposed generic for Korlym®.  (See Dkt. 49).  Within that letter, Corcept requested an extension of one week to respond to Teva’s Answer to the Amended Complaint.  Corcept’s letter further stated that the “parties are currently discussing a potential agreement that would eliminate the need for Corcept to respond to Teva’s Answer . . . .”  Is that potential “agreement” a resolution to the litigation?

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When did Mylan agree to launch its Herceptin biosimilar?

Mylan’s biosimilar for Herceptin® has FDA approval since December 2017.  Several months earlier, in March 2017, Mylan reached a global settlement with Roche and Genentech regarding their patents covering the drug.  The terms of the settlement have not been made public, which raises the question – when did Mylan agree to launch? 

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Can Teva’s patents block Lilly’s anti-CGRP Emgality from the market?

The anti-CGRP market is heating.  Amgen’s ($AMGN) Aimovig® received FDA approval in May 2018, and Teva’s ($TEVA) Ajovy® received approval in September.  Hot on their heels, Eli Lilly’s ($LLY) Emgality® just received FDA approval at the end of September.  The drugs will all be sold for essentially the same price of $6900 / year.  Given the tight competition, can Teva use its patents to kick anyone off the market?

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Korlym: Will Teva prevail on its motion to dismiss the amended complaint?

We previously wrote about Corcept’s ($CORT) amended complaint in its Hatch-Waxman patent litigation against Teva ($TEVA) regarding Korlym®.  On July 27, Teva filed another motion to dismiss.  Corcept opposed the motion on August 21, and Teva filed its reply on August 28.  The motion is now fully briefed.  Who will prevail?

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Can Corcept’s amended complaint hold back Teva’s generic for Korlym®?

We previously discussed Teva’s ($TEVA) motion to dismiss Corcept Therapeutic’s ($CORT) Hatch-Waxman lawsuit commenced in response to Teva’s ANDA for Korlym®.  In response to that motion to dismiss, on July 6, Corcept filed an amended complaint.  What are the implications of that?  And how does the case currently dovetail with the pending patent applications?

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How long can Roche keep back biosimilars for Avastin®, Herceptin® or Rituxan®?

The biosimilars are biting.  And they are biting at three big biologics distributed by Roche through its biotech subsidiary, Genentech.  Roche currently faces pending biosimilar competition against Avastin® (bevacizumab), Roche’s biggest selling cancer drug, Herceptin® (trastuzmab), Roche’s breast-cancer drug, and Rituxan® (rituximab), Roche’s immunotherapy drug.  All three drugs are involved in patent litigations. How long will these cases last? And how long can Roche keep the biosimilars out?

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Korlym®: Can Corcept defeat Teva’s motion to dismiss?

Earlier this year, Teva ($TEVA) filed an ANDA to distribute a generic version of Korlym®, and soon thereafter, Corcept Therapeutics ($CORT) commenced a Hatch-Waxman patent suit in federal court in New Jersey.  On June 15, 2018, Teva moved to dismiss the case.  What is this motion all about? And will Teva’s motion prevail?

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