Pacira BioSciences Completes Acquisition of Flexion Therapeutics and Strengthens Leadership Position in Non-Opioid Pain Management

— Adds highly complementary ZILRETTA^® to Pacira commercial offering —

— Combined portfolio offers end-to-end non-opioid solutions along the pain pathway —

TAMPA, Fla. and BURLINGTON, Mass., Nov. 19, 2021 (GLOBE NEWSWIRE) — Pacira BioSciences, Inc. (Nasdaq: PCRX), the industry leader in its commitment to non-opioid pain management and regenerative health solutions, today announced the completion of its previously announced acquisition of Flexion Therapeutics, Inc. (Nasdaq: FLXN).

“This is an exciting day for Pacira BioSciences as this acquisition expands our industry leadership and marks a major milestone in our strategy to build a robust offering of novel, non-opioid treatments to improve patient care along the neural pain pathway,” said David Stack, Chief Executive Officer of Pacira. “ZILRETTA is a highly complementary commercial asset that allows us to provide physicians with another tool in their pain management armamentarium to tackle osteoarthritis earlier in the patient journey as we continue to redefine the role of opioids as a last resort rescue medication. Importantly, ZILRETTA will diversify our revenue stream, enhance our topline, and we believe it will provide meaningful synergies that we expect to drive substantial near- and long-term accretion to our cash flows and earnings.”

About Pacira BioSciences

Pacira BioSciences, Inc. (Nasdaq: PCRX) is committed to providing a non-opioid option to as many patients as possible to redefine the role of opioids as rescue therapy only. The company is also developing innovative interventions to address debilitating conditions involving the sympathetic nervous system, such as cardiac electrical storm, chronic pain, and spasticity. Pacira has three commercial-stage non-opioid treatments: EXPAREL^® (bupivacaine liposome injectable suspension), a long-acting, local analgesia currently approved for postsurgical pain management; ZILRETTA^® (triamcinolone acetonide extended-release injectable suspension), an extended-release, intra-articular, injection indicated for the management of osteoarthritis knee pain; and ioveraº^®, a novel, handheld device for delivering immediate, long-acting, drug-free pain control using precise, controlled doses of cold temperature to a targeted nerve. To learn more about Pacira, including the corporate mission to reduce overreliance on opioids, visit www.pacira.com.

About EXPAREL^®

EXPAREL (bupivacaine liposome injectable suspension) is indicated in patients 6 years of age and older for single-dose infiltration to produce postsurgical local analgesia, and in adults as an interscalene brachial plexus nerve block to produce postsurgical regional analgesia. Safety and efficacy have not been established in other nerve blocks. Since its launch, EXPAREL has been used in over nine million patients. EXPAREL utilizes the company’s proprietary multivesicular liposomal drug delivery technology composed of a honeycomb of numerous, non-concentric, internal aqueous chambers containing bupivacaine. After injection, bupivacaine is released over time, as the lipid membranes are absorbed, prolonging the duration of action. EXPAREL is the first and only multivesicular liposome local anesthetic that can be utilized in the peri- or postsurgical setting. A single dose of EXPAREL provides significant reductions in cumulative pain scores with up to a 78 percent decrease in opioid consumption; the clinical benefit of the opioid reduction was not demonstrated. Additional information is available at www.EXPAREL.com.

Important Safety Information about EXPAREL for Patients

EXPAREL should not be used in obstetrical paracervical block anesthesia. In studies in adults where EXPAREL was injected into a wound, the most common side effects were nausea, constipation, and vomiting. In studies in adults where EXPAREL was injected near a nerve, the most common side effects were nausea, fever, and constipation. In the study where EXPAREL was given to children, the most common side effects were nausea, vomiting, constipation, low blood pressure, low number of red blood cells, muscle twitching, blurred vision, itching, and rapid heartbeat. EXPAREL can cause a temporary loss of feeling and/or loss of muscle movement. How much and how long the loss of feeling and/or muscle movement depends on where and how much of EXPAREL was injected and may last for up to 5 days. EXPAREL is not recommended to be used in patients younger than 6 years old for injection into the wound, for patients younger than 18 years old for injection near a nerve, and/or in pregnant women. Tell your health care provider if you or your child has liver disease, since this may affect how the active ingredient (bupivacaine) in EXPAREL is eliminated from the body. EXPAREL should not be injected into the spine, joints, or veins. The active ingredient in EXPAREL can affect the nervous system and the cardiovascular system; may cause an allergic reaction; may cause damage if injected into the joints; and can cause a rare blood disorder.

About ZILRETTA^® 

On October 6, 2017, ZILRETTA (triamcinolone acetonide extended-release injectable suspension) was approved by the U.S. Food and Drug Administration as the first and only extended-release intra-articular therapy for patients confronting osteoarthritis (OA)- related knee pain. ZILRETTA employs proprietary microsphere technology combining triamcinolone acetonide—a commonly administered, short-acting corticosteroid—with a poly lactic-co-glycolic acid (PLGA) matrix to provide extended pain relief. The pivotal Phase 3 trial on which the approval of ZILRETTA was based showed that ZILRETTA significantly reduced OA knee pain for 12 weeks, with some people experiencing pain relief through Week 16. Learn more at www.zilretta.com.

Indication and Select Important Safety Information for ZILRETTA

Indication: ZILRETTA is indicated as an intra-articular injection for the management of OA pain of the knee. Limitation of Use: The efficacy and safety of repeat administration of ZILRETTA have not been demonstrated.

Contraindication: ZILRETTA is contraindicated in patients who are hypersensitive to triamcinolone acetonide, corticosteroids or any components of the product.

Warnings and Precautions:

• Intra-articular Use Only: ZILRETTA has not been evaluated and should not be administered by epidural, intrathecal, intravenous, intraocular, intramuscular, intradermal, or subcutaneous routes. ZILRETTA should not be considered safe for epidural or intrathecal administration.
• Serious Neurologic Adverse Reactions with Epidural and Intrathecal Administration: Serious neurologic events have been reported following epidural or intrathecal corticosteroid administration. Corticosteroids are not approved for this use.
• Hypersensitivity reactions: Serious reactions have been reported with triamcinolone acetonide injection. Institute appropriate care if an anaphylactic reaction occurs.
• Joint infection and damage: A marked increase in joint pain, joint swelling, restricted motion, fever and malaise may suggest septic arthritis. If this occurs, conduct appropriate evaluation and if confirmed, institute appropriate antimicrobial treatment.

Adverse Reactions: The most commonly reported adverse reactions (incidence ≥1%) in clinical studies included sinusitis, cough, and contusions.

Please see ZILRETTALabel.com for full Prescribing Information.

About iovera°^®

The iovera° system is used to destroy tissue during surgical procedures by applying freezing cold. It can also be used to produce lesions in peripheral nervous tissue by the application of cold to the selected site for the blocking of pain. It is also indicated for the relief of pain and symptoms associated with osteoarthritis of the knee for up to 90 days. In one study, the majority of the patients suffering from osteoarthritis of the knee experienced pain and system relief beyond 150 days. The iovera° system’s “1×90” Smart Tip configuration (indicating one needle which is 90 mm long) can also facilitate target nerve location by conducting electrical nerve stimulation from a separate nerve stimulator. The iovera° system is not indicated for treatment of central nervous system tissue. Additional information is available at www.iovera.com.

Important Safety Information for iovera°^®

The iovera° system is contraindicated for use in patients with the following: Cryoglobulinemia; Paroxysmal cold hemoglobinuria; cold urticaria; Raynaud’s disease; open and/or infected wounds at or near the treatment line. Potential complications: As with any surgical treatment that uses needle-based therapy, there is potential for temporary site-specific reactions, including but not limited to: bruising (ecchymosis); swelling (edema); inflammation and/or redness (erythema); pain and/or tenderness; altered sensation (localized dysesthesia). Typically, these reactions resolve with no physician intervention. Patients may help the healing process by applying ice packs to the affected sites, and by taking over-the-counter analgesics.

Forward-Looking Statements
Any statements in this press release about Pacira’s future expectations, plans, trends, outlook, projections and prospects, and other statements containing the words “believes,” “anticipates,” “plans,” “estimates,” “expects,” “intends,” “may,” “will,” “would,” “could,” “can” and similar expressions, constitute forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. These forward-looking statements include, without limitation, statements related to the acquisition of Flexion and the benefits thereof, Pacira’s strategy, plans, objectives, expectations (financial or otherwise) and intentions, future financial results and growth potential, anticipated product portfolio, development programs, patent terms and other statements that are not historical facts. Actual results may differ materially from those indicated by such forward-looking statements as a result of various important factors, including risks relating to, among others: the outcome of legal proceedings against Flexion and/or others relating to the transaction; risks associated with acquisitions, such as the risk that the businesses will not be integrated successfully, that such integration may be more difficult, time-consuming or costly than expected or that the expected benefits of the transaction will not occur; risks related to future opportunities and plans for Flexion and its products, including uncertainty of the expected financial performance of Flexion and its products; disruption from the transaction, making it more difficult to conduct business as usual or maintain relationships with customers, employees or suppliers; the possibility that if Pacira does not achieve the perceived benefits of the transaction as rapidly or to the extent anticipated by financial analysts or investors, the market price of Pacira’s shares could decline; the impact of the worldwide COVID-19 (Coronavirus) pandemic and related global economic conditions on Pacira’s business and results of operations; the success of Pacira’s sales and manufacturing efforts in support of the commercialization of EXPAREL and iovera°; the rate and degree of market acceptance of EXPAREL and iovera°; the size and growth of the potential markets for EXPAREL and iovera° and Pacira’s ability to serve those markets; Pacira’s plans to expand the use of EXPAREL and iovera° to additional indications and opportunities, and the timing and success of any related clinical trials for EXPAREL and iovera°; the ability to successfully integrate any future acquisitions into Pacira’s existing business, including Flexion; and the recoverability of Pacira’s deferred tax assets and factors discussed in the “Risk Factors” of each of Pacira’s and Flexion’s most recent Annual Report on Form 10-K and in other filings that Pacira and Flexion periodically make with the Securities and Exchange Commission. In addition, the forward-looking statements included in this press release represent Pacira’s views as of the date of this press release. Important factors could cause actual results to differ materially from those indicated or implied by forward-looking statements, and as such Pacira anticipates that subsequent events and developments will cause its views to change. However, while Pacira may elect to update these forward-looking statements at some point in the future, Pacira specifically disclaims any obligation to do so, except as required by law. These forward-looking statements should not be relied upon as representing Pacira’s views as of any date subsequent to the date of this press release.

CONTACT: Investor Contacts: Pacira BioSciences Susan Mesco, (973) 451-4030 [email protected] Media Contact: Coyne Public Relations Kristin Capone, (973) 588-2108 [email protected]

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