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United States Supreme Court Declines to Review Rulings that Invalidate United Therapeutics’ Patent

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The U.S. Supreme Court has rejected United Therapeutics' petition to appeal previous rulings that invalidated all claims of U.S. Patent No. 10,716,793 ('793 Patent). This decision finalizes the Patent Trial and Appeal Board's July 2022 ruling, affirmed by the Federal Circuit in December 2023, making the '793 patent unenforceable. Liquidia (NASDAQ: LQDA) received tentative FDA approval for YUTREPIA on August 16, 2024, to treat PAH and PH-ILD in adults. Final approval may occur after May 23, 2025, when Tyvaso DPI's regulatory exclusivity expires. No patents currently prevent YUTREPIA's final FDA approval. A separate lawsuit regarding U.S. Patent No. 11,826,327 is scheduled for trial in June 2025.

La Corte Suprema degli Stati Uniti ha respinto la petizione di United Therapeutics per appellarsi a decisioni precedenti che hanno invalidato tutte le rivendicazioni del Brevetto Statunitense n. 10,716,793 ('793 Patent). Questa decisione finalizza la sentenza del Patent Trial and Appeal Board di luglio 2022, confermata dalla Federal Circuit nel dicembre 2023, rendendo il brevetto '793 inapplicabile. Liquidia (NASDAQ: LQDA) ha ricevuto approvazione preliminare dalla FDA per YUTREPIA il 16 agosto 2024, per trattare PAH e PH-ILD negli adulti. L'approvazione finale potrebbe avvenire dopo il 23 maggio 2025, quando scade l'esclusività regolatoria di Tyvaso DPI. Attualmente, nessun brevetto impedisce l'approvazione finale di YUTREPIA dalla FDA. Una causa separata riguardante il Brevetto Statunitense n. 11,826,327 è programmata per il processo a giugno 2025.

La Corte Suprema de EE. UU. ha rechazado la petición de United Therapeutics para apelar decisiones previas que invalidaron todas las reivindicaciones de la Patente de EE. UU. No. 10,716,793 ('793 Patent). Esta decisión finaliza la resolución de la Junta de Juicio y Apelación de Patentes de julio de 2022, confirmada por el Circuito Federal en diciembre de 2023, haciendo que la patente '793 sea inexigible. Liquidia (NASDAQ: LQDA) recibió aprobación tentativa de la FDA para YUTREPIA el 16 de agosto de 2024, para tratar PAH y PH-ILD en adultos. La aprobación final puede ocurrir después del 23 de mayo de 2025, cuando expire la exclusividad regulatoria de Tyvaso DPI. Actualmente, no existen patentes que impidan la aprobación final de YUTREPIA por parte de la FDA. Se espera que un juicio separado sobre la Patente de EE. UU. No. 11,826,327 se lleve a cabo en junio de 2025.

미국 대법원은 유나이티드 테라퓨틱스의 청원을 기각했습니다, 이는 미국 특허 제10,716,793호('793 특허)의 모든 청구를 무효화한 이전 판결에 대한 항소입니다. 이번 결정은 2022년 7월 특허 심판 및 항소 위원회의 판결을 확정지으며, 2023년 12월 연방 순회 법원에 의해 확인되어 '793 특허가 시행 불가가 되었습니다. 리퀴디아(NASDAQ: LQDA)는 2024년 8월 16일 성인의 PAH와 PH-ILD 치료를 위해 YUTREPIA에 대한 임시 FDA 승인을 받았습니다. 최종 승인은 2025년 5월 23일 타바사오 DPI의 규제 독점이 만료된 이후에 이루어질 수 있습니다. 현재 YUTREPIA의 최종 FDA 승인을 방해하는 특허는 없습니다. 미국 특허 제11,826,327호에 대한 별도의 소송이 2025년 6월에 진행될 예정입니다.

La Cour suprême des États-Unis a rejeté la pétition de United Therapeutics visant à faire appel des décisions précédentes qui ont invalidé toutes les revendications du Brevet américain n° 10,716,793 ('793 Patent). Cette décision finalise le jugement du Patent Trial and Appeal Board de juillet 2022, confirmé par le Circuit fédéral en décembre 2023, rendant le brevet '793 inapplicable. Liquidia (NASDAQ : LQDA) a reçu le 16 août 2024 une approbation provisoire de la FDA pour YUTREPIA, destinée à traiter la PAH et la PH-ILD chez les adultes. L'approbation finale pourrait intervenir après le 23 mai 2025, date à laquelle l'exclusivité réglementaire de Tyvaso DPI expirera. Aucune patente ne bloque actuellement l'approbation finale de YUTREPIA par la FDA. Un autre procès concernant le Brevet américain n° 11,826,327 est prévu pour juin 2025.

Der Oberste Gerichtshof der USA hat den Antrag von United Therapeutics abgelehnt, gegen frühere Entscheidungen Berufung einzulegen, die alle Ansprüche des US-Patents Nr. 10.716.793 ('793 Patent) für nichtig erklärten. Diese Entscheidung bestätigt das Urteil des Patent Trial and Appeal Board aus Juli 2022, das im Dezember 2023 vom Federal Circuit bestätigt wurde, wodurch das '793 Patent unverbindlich wird. Liquidia (NASDAQ: LQDA) erhielt am 16. August 2024 vorläufige FDA-Zulassung für YUTREPIA zur Behandlung von PAH und PH-ILD bei Erwachsenen. Die endgültige Genehmigung könnte nach dem 23. Mai 2025 erfolgen, wenn die regulatorische Exklusivität von Tyvaso DPI abläuft. Derzeit gibt es keine Patente, die die endgültige FDA-Zulassung von YUTREPIA verhindern. Ein separater Prozess bezüglich des US-Patents Nr. 11.826.327 ist für Juni 2025 angesetzt.

Positive
  • Supreme Court's rejection of United Therapeutics' appeal finalizes the invalidation of the '793 patent
  • FDA granted tentative approval for YUTREPIA to treat PAH and PH-ILD in adults
  • No patents currently prevent final FDA approval of YUTREPIA
  • United Therapeutics' request for a preliminary injunction on the '327 Patent was denied
Negative
  • Final approval of YUTREPIA is delayed until at least May 23, 2025, due to regulatory exclusivity
  • Ongoing patent lawsuit regarding the '327 Patent, with trial scheduled for June 2025

Insights

The Supreme Court's decision not to review the rulings invalidating United Therapeutics' '793 patent is a significant victory for Liquidia. This effectively removes a major legal obstacle for YUTREPIA's path to market. The invalidation of all claims in the '793 patent, now final and unappealable, strengthens Liquidia's position in the PAH and PH-ILD treatment space.

The FDA's tentative approval of YUTREPIA for both PAH and PH-ILD indications is another positive development. The main hurdle now appears to be the regulatory exclusivity for Tyvaso DPI, expiring on May 23, 2025. Barring any unforeseen complications, Liquidia seems well-positioned for a potential launch shortly after this date.

The ongoing litigation regarding the '327 patent, with a trial scheduled for June 2025, remains a point to watch. However, the denial of United Therapeutics' request for a preliminary injunction suggests the court doesn't see a strong likelihood of success on the merits of this patent claim.

This legal victory significantly de-risks Liquidia's path to commercialization for YUTREPIA. With the '793 patent invalidation finalized and no other patents currently blocking FDA approval, the company is in a stronger position to potentially capture market share in the lucrative PAH and PH-ILD treatment markets.

Investors should note that the tentative FDA approval for both indications expands YUTREPIA's potential market. The key date to watch is May 23, 2025, when Tyvaso DPI's exclusivity expires. Assuming no further legal setbacks, Liquidia could be positioned for revenue generation shortly thereafter.

With a market cap of $846 million, Liquidia's valuation could see upward pressure as the path to commercialization becomes clearer. However, investors should also consider potential challenges such as the upcoming trial for the '327 patent and the competitive landscape in the PAH/PH-ILD market.

  • U.S. Supreme Court denied United Therapeutics’ petition to appeal rulings that found all claims of U.S. Patent No. 10,716,793 (‘793 Patent) were invalid
  • Decisions that Liquidia does not infringe any valid claims of the three patents originally asserted by United Therapeutics are now final and not subject to further appeal

MORRISVILLE, N.C., Oct. 07, 2024 (GLOBE NEWSWIRE) -- Liquidia Corporation (NASDAQ: LQDA), a biopharmaceutical company developing innovative therapies for patients with rare cardiopulmonary diseases, today announced that the United States Supreme Court has rejected United Therapeutics’ (UTHR) petition for a writ of certiorari, which requested permission to appeal prior decisions which found that all claims of  U.S. Patent No. 10,716,793 (‘793 Patent) are unpatentable due to prior art. As a result, the decision by the Patent Trial and Appeal Board (PTAB) in July 2022, which was affirmed by the U.S. Court of Appeals for the Federal Circuit (Federal Circuit) in December 2023, is now final and not subject to further appeal.

Dr. Roger Jeffs, Chief Executive Officer of Liquidia, said: “We are pleased that the Supreme Court has denied the petition by United Therapeutics and affirmed previous rulings that every claim of the ‘793 patent is invalid. We are grateful that this specific chapter has come to a close and that the ‘793 patent will now be forever unenforceable. We will continue to fight for the earliest possible launch of YUTREPIA so that patients and physicians have access to the unique benefits that YUTREPIA can provide.”

On August 16, 2024, the U.S. Food and Drug Administration (FDA) granted tentative approval of YUTREPIA (treprostinil) inhalation powder to treat adults with pulmonary arterial hypertension (PAH) and pulmonary hypertension associated with interstitial lung disease (PH-ILD). In doing so, FDA confirmed that the amendment to add PH-ILD to the YUTREPIA New Drug Application (NDA) was proper and that application otherwise meets the requirements for approval under the Federal Food, Drug, and Cosmetic Act. Final approval of YUTREPIA for PAH and PH-ILD may occur after expiration of 3-year regulatory exclusivity for Tyvaso DPI on May 23, 2025.

There are no patents that are preventing final FDA approval of YUTREPIA. None of the valid claims of the three patents asserted by UTHR in original Hatch-Waxman litigation have been found to be infringed. All of the decisions are final and not subject to further appeal. Additionally, the U.S. District Court of the District of Delaware denied UTHR’s request for a preliminary injunction with respect to a fourth patent, U.S. Patent No. 11,826,327 (‘327 Patent), in a separate patent lawsuit filed by UTHR in September 2023. A trial in the ‘327 Patent lawsuit is scheduled for June 2025.

About YUTREPIA™ (treprostinil) Inhalation Powder
YUTREPIA is an inhaled dry-powder formulation of treprostinil delivered through a convenient, low-effort, palm-sized device. YUTREPIA was designed using Liquidia’s PRINT® technology, which enables the development of drug particles that are precise and uniform in size, shape and composition, and that are engineered for enhanced deposition in the lung following oral inhalation. Liquidia has completed INSPIRE, or Investigation of the Safety and Pharmacology of Dry Powder Inhalation of Treprostinil, an open-label, multi-center phase 3 clinical study of YUTREPIA in patients diagnosed with PAH who are naïve to inhaled treprostinil or who are transitioning from Tyvaso® (nebulized treprostinil). YUTREPIA is currently being studied in the ASCENT trial, an Open-Label Prospective Multicenter Study to Evaluate Safety and Tolerability of Dry Powder Inhaled Treprostinil in Pulmonary Hypertension, with the objective of informing YUTREPIA’s dosing and tolerability profile in patients with PH-ILD. YUTREPIA was previously referred to as LIQ861 in investigational studies.

About Liquidia Corporation
Liquidia Corporation is a biopharmaceutical company developing innovative therapies for patients with rare cardiopulmonary disease. The company’s current focus spans the development and commercialization of products in pulmonary hypertension and other applications of its proprietary PRINT® Technology. PRINT enabled the creation of Liquidia’s lead candidate, YUTREPIA™ (treprostinil) inhalation powder, an investigational drug for the treatment of pulmonary arterial hypertension (PAH) and pulmonary hypertension associated with interstitial lung disease (PH-ILD).  The company is also developing L606, an investigational sustained-release formulation of treprostinil administered twice-daily with a next-generation nebulizer, and currently markets generic Treprostinil Injection for the treatment of PAH. To learn more about Liquidia, please visit https://www.liquidia.com.

Tyvaso® is a registered trademark of United Therapeutics Corporation

Cautionary Statements Regarding Forward-Looking Statements 
This press release may include forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. All statements contained in this press release other than statements of historical facts, including statements regarding our future results of operations and financial position, our strategic and financial initiatives, our business strategy and plans and our objectives for future operations, are forward-looking statements. Such forward-looking statements, including statements regarding clinical trials, clinical studies and other clinical work (including the funding therefor, anticipated patient enrollment, safety data, study data, trial outcomes, timing or associated costs), regulatory applications and related submission contents and timelines, including the potential for final FDA approval of the NDA for YUTREPIA, the timeline or outcome of our lawsuit against the FDA or the cross-claims that United Therapeutics has brought in that lawsuit, the timeline or outcome related to patent litigation in the U.S. District Court for the District of Delaware, including rehearings or appeals of decisions in any such proceedings, the issuance of patents by the USPTO and our ability to execute on our strategic or financial initiatives, involve significant risks and uncertainties and actual results could differ materially from those expressed or implied herein.   The words “anticipate,” “believe,” “continue,” “could,” “estimate,” “expect,” “intend,” “may,” “plan,” “potential,” “predict,” “project,” “should,” “target,” “would,” and similar expressions are intended to identify forward-looking statements. We have based these forward-looking statements largely on our current expectations and projections about future events and financial trends that we believe may affect our financial condition, results of operations, business strategy, short-term and long-term business operations and objectives and financial needs. These forward-looking statements are subject to a number of risks discussed in our filings with the SEC, as well as a number of uncertainties and assumptions. Moreover, we operate in a very competitive and rapidly changing environment and our industry has inherent risks. New risks emerge from time to time. It is not possible for our management to predict all risks, nor can we assess the impact of all factors on our business or the extent to which any factor, or combination of factors, may cause actual results to differ materially from those contained in any forward-looking statements we may make. In light of these risks, uncertainties and assumptions, the future events discussed in this press release may not occur and actual results could differ materially and adversely from those anticipated or implied in the forward-looking statements. Nothing in this press release should be regarded as a representation by any person that these goals will be achieved, and we undertake no duty to update our goals or to update or alter any forward-looking statements, whether as a result of new information, future events or otherwise.

Contact Information

Investors:
Jason Adair
919.328.4350
jason.adair@liquidia.com

Media:
Patrick Wallace
919.328.4383
patrick.wallace@liquidia.com


FAQ

What was the U.S. Supreme Court's decision regarding United Therapeutics' patent appeal for LQDA?

The U.S. Supreme Court rejected United Therapeutics' petition to appeal previous rulings that invalidated all claims of U.S. Patent No. 10,716,793, making the patent unenforceable against Liquidia (LQDA).

When did Liquidia (LQDA) receive tentative FDA approval for YUTREPIA?

Liquidia (LQDA) received tentative FDA approval for YUTREPIA on August 16, 2024, for treating PAH and PH-ILD in adults.

What is the earliest possible date for final FDA approval of YUTREPIA for Liquidia (LQDA)?

The earliest possible date for final FDA approval of YUTREPIA is May 23, 2025, after the expiration of Tyvaso DPI's 3-year regulatory exclusivity.

Are there any remaining patent obstacles for Liquidia's (LQDA) YUTREPIA approval?

There are no patents currently preventing final FDA approval of YUTREPIA. However, there is an ongoing lawsuit regarding U.S. Patent No. 11,826,327, with a trial scheduled for June 2025.

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