10578 Science Center Drive
San Diego, CA 92121
(858) 625 2424
5 Sylvan Way
Parsippany, NJ 07054
(973) 254 3560
|PACIRA PHARMACEUTICALS, INC. filed this Form 10-K on 03/01/2017|
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In the first quarter of 2016, we initiated two pivotal Phase 3 nerve block trials comparing the effect of EXPAREL versus placebo through a femoral nerve block trial for TKA and a brachial plexus block trial for total shoulder arthroplasty or rotator cuff repair procedures. We believe that this new indication will present an alternative long-term method of pain control with a single injection, replacing the costly and cumbersome standard of care requiring a perineural catheter, drug reservoir and pump needed to continuously deliver bupivacaine.
If our trials are successful, we intend to file a supplemental New Drug Application, or sNDA, for nerve block in the middle of 2017 for a six-month Prescription Drug User Fee Act, or PDUFA, review. We believe that this additional indication for EXPAREL will allow us to fully leverage our manufacturing and commercial infrastructure.
The FDA, as a condition of EXPAREL approval, has required us to study EXPAREL in pediatric patients. We were granted a deferral for the required pediatric trials in all age groups for EXPAREL in the setting of wound infiltration and plan to conduct these pediatric trials as a post-marketing requirement, which was stated in the NDA approval letter for EXPAREL. We recently secured feedback from the FDA on the pediatric trial design in all age groups and we are in the process of finalizing our clinical strategy.
EXPAREL Phase 4 Clinical Trials
We are investing in a series of blinded, randomized, bupivacaine-comparator Phase 4 trials in key surgical procedures. These trials are designed to assess the differences in postsurgical pain and opioid use between patients receiving EXPAREL as the foundation of a multimodal analgesic regimen versus a bupivacaine-based multimodal analgesic regimen. Our Phase 4 trials are also designed to support clinician education on procedure-specific best-practice care.
For each of our Phase 4 trials we are taking the following approach:
Third Molar Procedures and Introduction of 133mg Dose in a 10mL Vial
We have completed a Phase 4 randomized, controlled trial in third molar (wisdom teeth) procedures, with a per-protocol analysis demonstrating statistical significance and an intention-to-treat analysis strongly trending towards significance.
In September 2016, we launched EXPAREL to the oral and maxillofacial market by introducing a 133mg dose contained in a 10mL vial for use in patients undergoing third molar (wisdom teeth) extractions. We believe the 133mg dose will also find adoption among plastic surgeons. We introduced the 133mg dose in a 10-pack and a 4-pack so that oral surgeons and doctors at smaller surgical centers will have easier access to provide EXPAREL to their patients.
In 2017, we expect to introduce the 133mg dose into the hospital and ambulatory surgery marketplaces. To date, EXPAREL has only been available in the hospital and ambulatory surgery marketplaces in a 266mg dose contained in a 20mL vial. The 266mg dose, containing twice as much pain relieving drug as the 133mg dose, provides greater pain relief over a longer duration of time. However, we believe the 133mg dose in a 10mL vial could gain adoption in smaller surgical wounds such as foot and ankle surgeries, where 10mL covers the area of the surgery and where the larger 266mg dose in a 20mL vial is too much volume for the wound site.
Total Knee Arthroplasty
We recently announced positive top-line results from a Phase 4 multicenter, randomized, double-blind, controlled, parallel group trial in patients undergoing a primary unilateral TKA. The trial compared EXPAREL-based local analgesia infiltration to
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