Sorrento Therapeutics, Inc. v. Anthony Mack

CourtCourt of Chancery of Delaware
DecidedSeptember 1, 2023
DocketC.A. No. 2021-0210-PAF
StatusPublished

This text of Sorrento Therapeutics, Inc. v. Anthony Mack (Sorrento Therapeutics, Inc. v. Anthony Mack) is published on Counsel Stack Legal Research, covering Court of Chancery of Delaware primary law. Counsel Stack provides free access to over 12 million legal documents including statutes, case law, regulations, and constitutions.

Bluebook
Sorrento Therapeutics, Inc. v. Anthony Mack, (Del. Ct. App. 2023).

Opinion

IN THE COURT OF CHANCERY OF THE STATE OF DELAWARE

SORRENTO THERAPEUTICS, INC., a ) Delaware corporation, and SCILEX ) PHARMACEUTICALS INC., a Delaware ) corporation, ) ) Plaintiffs, ) ) v. ) C.A. No. 2021-0210-PAF ) ANTHONY MACK, an individual, and ) VIRPAX PHARMACEUTICALS, INC., a ) Delaware corporation, ) ) Defendants. )

MEMORANDUM OPINION

Date Submitted: January 20, 2023 Date Decided: September 1, 2023

Kevin M. Coen, Alexandra M. Cumings, MORRIS, NICHOLS, ARSHT & TUNNELL LLP, Wilmington, Delaware; Jamie L. Wine, Steven N. Feldman, LATHAM & WATKINS LLP, New York, New York; Matthew W. Walch, Russell Mangas, LATHAM & WATKINS LLP, Chicago, Illinois; Attorneys for Plaintiffs Sorrento Therapeutics, Inc. and Scilex Pharmaceuticals Inc.

Elizabeth A. Sloan, Brittany M. Giusini, Fred DeRitis, BALLARD SPAHR LLP, Wilmington, Delaware; Paul Lantieri III, BALLARD SPAHR LLP, Philadelphia, Pennsylvania; Attorneys for Defendant Virpax Pharmaceuticals, Inc.

Stephen B. Brauerman, Justin C. Barrett, BAYARD, P.A., Wilmington, Delaware; Attorneys for Defendant Anthony Mack.

FIORAVANTI, Vice Chancellor Anthony Mack is a successful pharmaceutical executive who has founded

several pharmaceutical companies over the course of his more than 30-year career.

One of those businesses was Scilex Pharmaceuticals Inc. (“Scilex”), a pain-focused

company which was actively trying to shepherd ZTlido, an early-stage drug

candidate, through the FDA approval process. In 2016, Mack engineered the sale of

a controlling stake in Scilex to Sorrento Therapeutics, Inc. (“Sorrento”), for which

Mack received $12 million. Mack agreed to stay on after the sale as Scilex’s

President and to seek potential investment opportunities for Scilex. He also signed

a non-competition agreement.

Immediately after the transaction, Mack began developing a new

pharmaceutical business aimed at pain management. While serving as Scilex’s

President and under the restrictions of the non-compete, Mack diverted development

opportunities to his other enterprises. All the while, Mack took steps to conceal his

conduct from Sorrento and the Scilex board. He downloaded a trove of Scilex

documents to his personal devices and later uploaded those documents to the servers

of his new company. Mack’s new company, Virpax Pharmaceuticals, Inc.

(“Virpax”), has since gone public and has three drug candidates, each of which arises

from a development opportunity presented to Mack during his time at Scilex.

Sorrento and Scilex contend in this litigation that those products compete with

ZTlido. Sorrento and Scilex have asserted claims against Mack for breach of contract,

breach of fiduciary duty, and misappropriation of trade secrets, and against Virpax

for tortious interference, aiding and abetting Mack’s breaches of fiduciary duties,

and misappropriating trade secrets. In this post-trial opinion, the court addresses

liability, finding: (1) Mack breached the RCA by developing Epoladerm; (2) Virpax

is liable for tortious interference with contract; (3) Plaintiffs waived their claims for

breach of Mack’s employment contract and for tortious interference with prospective

economic advantage; (4) Mack breached his fiduciary duty of loyalty to Scilex; (5)

Virpax aided and abetted Mack’s breach of fiduciary duty; and (6) Mack

misappropriated certain Scilex trade secrets. The question of an appropriate remedy

must await further proceedings.

I. BACKGROUND

What follows is the court’s findings of fact following trial.1

A. The Parties Sorrento is a biopharmaceutical company that develops and markets

pharmaceuticals intended to fight cancer, manage pain, and prevent and treat Covid-

1 Citations to testimony presented at trial are in the form “Tr. # (X)” with “X” representing the surname of the speaker, if not clear from the text. After being identified initially, individuals are referenced herein by their surnames without regard to formal titles such as “Dr.” No disrespect is intended. Exhibits are cited as “JX #,” and facts drawn from the parties’ Pre-Trial Stipulation and Order are cited as “PTO ¶ #.” See Dkt. 195. Unless otherwise indicated, citations to the parties’ briefs are to post-trial briefs.

2 19.2 Sorrento is headquartered in California and incorporated in Delaware. Dr.

Henry Ji cofounded Sorrento in 2006, and has served as its CEO and President since

2012 and Chairman of the board of directors since 2017.3 Through the date of trial,

Sorrento was publicly traded on the Nasdaq stock exchange under the symbol

“SRNE.”4

Scilex is a Delaware corporation engaged in pharmaceutical development.

Scilex’s mission is to develop and commercialize non-opioid pain-management

products. Scilex has one product on the market, a 1.8% lidocaine patch called

“ZTlido.”5 Sorrento acquired 72% of Scilex’s outstanding common stock in

November 2016.6

Defendant Anthony Mack has worked in the pharmaceutical industry for more

than 30 years. Between 1998 and 2009, Mack worked as a Hospital Training

Manager for Purdue Pharma, a Product Manager for Endo Pharmaceuticals, and a

National Sales Director for EKR Therapeutics.7 During this period, Mack leveraged

his background in pharmaceutical sales to assist in the development and marketing

2 JX 552 at 4. 3 JX 624 at 2. 4 Tr. 369:15–16 (Shah); JX 309 at 53. 5 JX 552 at 8. 6 JX 393 at 104. 7 JX 243 at 27.

3 of Lidoderm, a prescription 5% lidocaine patch with an indication of post-herpetic

neuralgia.8 In 2009, Mack founded ProSolus Pharmaceuticals LP (“ProSolus”), a

pharmaceutical company focused on developing and manufacturing transdermal

drug delivery products.9 Mack left ProSolus after it was sold to Mission

Pharmaceutical Company in 2015. 10

Mack co-founded Scilex in 2012 with Bill Dixon, who had also been involved

with ProSolus.11 Mack later recruited George Ng, the lawyer for ProSolus, to join

Scilex.12 At Ng’s urging, William Pedranti also joined the Scilex management

team.13 In 2013, Scilex licensed a preclinical product that would later become

ZTlido.14 Shortly after obtaining that license, Scilex raised approximately $5 million

through Aegis Capital, a company affiliated with Ji and with George Uy. 15 In total,

Scilex raised between $100 and $140 million to commercialize ZTlido.16

8 Id. at 11, 27. 9 Id. 10 Id. 11 Tr. 435:19–20 (Mack). 12 Id. at 435:22–436:4. 13 Id. 14 Id. at 436:10–24. 15 Id. at 437:15–18. 16 Id. at 673:11–19 (Sahebi).

4 In 2013, Mack also founded IACTA Pharmaceuticals (“IACTA”).17 IACTA

was focused on developing products for eye care and was owned by Mack, Pedranti,

Damon Burrows, and Ng. 18 Mack, Pedranti, Burrows, and Ng already owned

another entity, Troy Capital Health (“Troy”).19

Virpax is a Delaware corporation with a principal place of business in West

Chester, Pennsylvania. 20 Virpax’s stock began trading under the symbol “VRPX”

on the Nasdaq stock exchange on February 17, 2021.21 Mack is the Chairman and

CEO of Virpax.22

B. The FDA Approval Process

Before a new drug can be marketed for human use, the U.S. Food and Drug

Administration (the “FDA”) must approve it. Three potential routes to approval are

relevant to this case.

A new drug, called a “pioneer” or “innovator” drug, must go through an

arduous approval process with the FDA.23 New drugs involve new chemical entities

(“NCE”).

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