Candiotti K Liposomal bupivacaine: an innovative nonopioid local analgesic for the management of postsurgical pain. Pharmacotherapy. 2012 Sep;32(9 Suppl):19S-26S. doi: 10.1002/j.1875-9114.2012.01183.x.
Hannan CV, Albrecht MJ, Petersen SA, Srikumaran U Liposomal Bupivacaine vs Interscalene Nerve Block for Pain Control After Shoulder Arthroplasty: A Retrospective Cohort Analysis. Am J Orthop (Belle Mead NJ). 2016 Nov/Dec;45(7):424-430.
McLaughlin DC, Cheah JW, Aleshi P, Zhang AL, Ma CB, Feeley BT Multimodal analgesia decreases opioid consumption after shoulder arthroplasty: a prospective cohort study. J Shoulder Elbow Surg. 2018 Apr;27(4):686-691. doi: 10.1016/j.jse.2017.11.015. Epub 2018 Jan 3.
Movafegh A, Razazian M, Hajimaohamadi F, Meysamie A Dexamethasone added to lidocaine prolongs axillary brachial plexus blockade. Anesth Analg. 2006 Jan;102(1):263-7. doi: 10.1213/01.ane.0000189055.06729.0a.
Rasmussen SB, Saied NN, Bowens C Jr, Mercaldo ND, Schildcrout JS, Malchow RJ Duration of upper and lower extremity peripheral nerve blockade is prolonged with dexamethasone when added to ropivacaine: a retrospective database analysis. Pain Med. 2013 Aug;14(8):1239-47. doi: 10.1111/pme.12150. Epub 2013 Jun 11.
Schroer WC, Diesfeld PG, LeMarr AR, Morton DJ, Reedy ME Does Extended-Release Liposomal Bupivacaine Better Control Pain Than Bupivacaine After Total Knee Arthroplasty (TKA)? A Prospective, Randomized Clinical Trial. J Arthroplasty. 2015 Sep;30(9 Suppl):64-7. doi: 10.1016/j.arth.2015.01.059. Epub 2015 Jun 3.
Vieira PA, Pulai I, Tsao GC, Manikantan P, Keller B, Connelly NR Dexamethasone with bupivacaine increases duration of analgesia in ultrasound-guided interscalene brachial plexus blockade. Eur J Anaesthesiol. 2010 Mar;27(3):285-8. doi: 10.1097/EJA.0b013e3283350c38.
Wang K, Zhang HX Liposomal bupivacaine versus interscalene nerve block for pain control after total shoulder arthroplasty: A systematic review and meta-analysis. Int J Surg. 2017 Oct;46:61-70. doi: 10.1016/j.ijsu.2017.08.569. Epub 2017 Aug 24.
LIBERATE - LIposomal Bupivacaine vERsus Adjuncts in Total shouldErs: A Randomized Controlled Trial of Injection at the Brachial Plexus
Interventional studies are often prospective and are specifically tailored to evaluate direct impacts of treatment or preventive measures on disease.
Observational studies are often retrospective and are used to assess potential causation in exposure-outcome relationships and therefore influence preventive methods.
Expanded access is a means by which manufacturers make investigational new drugs available, under certain circumstances, to treat a patient(s) with a serious disease or condition who cannot participate in a controlled clinical trial.
Clinical trials are conducted in a series of steps, called phases - each phase is designed to answer a separate research question.
Phase 1: Researchers test a new drug or treatment in a small group of people for the first time to evaluate its safety, determine a safe dosage range, and identify side effects.
Phase 2: The drug or treatment is given to a larger group of people to see if it is effective and to further evaluate its safety.
Phase 3: The drug or treatment is given to large groups of people to confirm its effectiveness, monitor side effects, compare it to commonly used treatments, and collect information that will allow the drug or treatment to be used safely.
Phase 4: Studies are done after the drug or treatment has been marketed to gather information on the drug's effect in various populations and any side effects associated with long-term use.
