E.1 Medical condition or disease under investigation |
E.1.1 | Medical condition(s) being investigated |
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E.1.1.1 | Medical condition in easily understood language |
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E.1.1.2 | Therapeutic area | Analytical, Diagnostic and Therapeutic Techniques and Equipment [E] - Anesthesia and Analgesia [E03] |
MedDRA Classification |
E.1.2 Medical condition or disease under investigation |
E.1.2 | Version | 19.1 |
E.1.2 | Level | LLT |
E.1.2 | Classification code | 10038286 |
E.1.2 | Term | Regional nerve block |
E.1.2 | System Organ Class | 100000004865 |
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E.1.3 | Condition being studied is a rare disease | No |
E.2 Objective of the trial |
E.2.1 | Main objective of the trial |
The primary objective of this study is to evaluate the magnitude and duration of the analgesic effect achieved following single-dose injection femoral nerve block with EXPAREL in subjects undergoing primary unilateral total knee arthroplasty (TKA). |
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E.2.2 | Secondary objectives of the trial |
The secondary objectives of this study are to further assess the efficacy, safety, and pharmacokinetic (PK) profiles of EXPAREL as well as the onset and duration of sensory and motor function blockade following administration for analgesia in subjects undergoing primary unilateral TKA. |
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E.2.3 | Trial contains a sub-study | No |
E.3 | Principal inclusion criteria |
1. Male or female, at least 18 years of age at screening. 2. Scheduled to undergo primary unilateral TKA under general or spinal anesthesia. 3. American Society of Anesthesiologists (ASA) physical status 1, 2, or 3. 4. Female subject must be surgically sterile; or at least 2 years postmenopausal; or have a monogamous partner who is surgically sterile; or practicing double-barrier contraception; or practicing abstinence (must agree to use double-barrier contraception in the event of sexual activity); or using an insertable, injectable, transdermal, or combination oral contraceptive approved by the FDA for greater than 2 months prior to screening and commit to the use of an acceptable form of birth control for the duration of the study and for 30 days after completion of the study. 5. Able to demonstrate sensory function by exhibiting sensitivity to cold, pinprick, and light touch. 6. Able to provide informed consent, adhere to the study visit schedule, and complete all study assessments. |
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E.4 | Principal exclusion criteria |
1. Currently pregnant, nursing, or planning to become pregnant during the study or within 1 month after study drug administration. 2. Planned concurrent surgical procedure (e.g., bilateral TKA). 3. Concurrent painful physical condition that may require analgesic treatment (such as an NSAID or opioid) in the postsurgical period for pain that is not strictly related to the knee surgery and which may confound the postsurgical assessments (e.g., significant pain from other joints including the non-index knee joint, chronic neuropathic pain, concurrent or prior contralateral TKA, concurrent foot surgery). 4. Previous open knee surgery on the knee being considered for TKA. Prior arthroscopy is permitted. 5. History of hypersensitivity or idiosyncratic reaction to amide-type local anesthetics. 6. Contraindication to any of the following: bupivacaine, oxycodone, morphine, or hydromorphone. 7. Use of any of the following medications within the times specified before surgery: long-acting opioid medication or NSAIDs (except for low-dose aspirin used for cardioprotection) within 3 days, or any opioid medication within 24 hours. 8. Initiation of treatment with any of the following medications within 1 month of study drug administration or if the medication(s) are being given to control pain: selective serotonin reuptake inhibitors (SSRIs), selective norepinephrine reuptake inhibitors (SNRIs), gabapentin, pregabalin (Lyrica®), or duloxetine (Cymbalta®). If a subject is taking one of these medications for a reason other than pain control, he or she must be on a stable dose for at least 1 month prior to study drug administration. 9. Current use of systemic glucocorticosteroids within 1 month of enrollment in this study. 10. Use of dexmedetomidine HCl (Precedex®) within 3 days prior to study drug administration. 11. History of impaired kidney function, poorly controlled chronic respiratory disease, rheumatoid arthritis, coagulopathy, or loss of sensation in extremities. 12. Impaired kidney function (e.g., serum creatinine level >2 mg/dL [176.8 μmol/L] or blood urea nitrogen level >50 mg/dL [17.9 mmol/L]) or impaired liver function (e.g., serum aspartate aminotransferase [AST] level >3 times the upper limit of normal (ULN) or serum alanine aminotransferase [ALT] level >3 times the ULN. 13. Uncontrolled anxiety, psychiatric, or neurological disorder that might interfere with study assessments. 14. Any chronic neuromuscular deficit effecting the peripheral nerves or muscles of the surgical extremity. 15. Any chronic condition or disease that would compromise neurological or vascular assessments. 16. Malignancy in the last 2 years, with the exception of non-metastatic basal cell or squamous cell carcinoma of the skin or localized carcinoma in situ of the cervix. 17. Suspected or known history of drug or alcohol abuse within the previous year. 18. Body weight <50 kg (110 pounds) or a body mass index >44 kg/m2. 19. Previous participation in an EXPAREL study. 20. Administration of an investigational drug within 30 days or 5 elimination half-lives of such investigational drug, whichever is longer, prior to study drug administration, or planned administration of another investigational product or procedure during the subject’s participation in this study. |
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E.5 End points |
E.5.1 | Primary end point(s) |
The primary endpoint is area under the curve (AUC) of the VAS pain intensity scores through 72 hours. |
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E.5.1.1 | Timepoint(s) of evaluation of this end point |
through 72 hours after surgery. |
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E.5.2 | Secondary end point(s) |
The following secondary endpoints will be analyzed in the following order: 1. Total postsurgical opioid consumption (in IV morphine equivalents) through 72 hours. 2. Percentage of opioid-free subjects through 72 hours. 3. Time to first opioid rescue through 72 hours. |
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E.5.2.1 | Timepoint(s) of evaluation of this end point |
through 72 hours after surgery. |
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E.6 and E.7 Scope of the trial |
E.6 | Scope of the trial |
E.6.1 | Diagnosis | No |
E.6.2 | Prophylaxis | No |
E.6.3 | Therapy | Yes |
E.6.4 | Safety | Yes |
E.6.5 | Efficacy | Yes |
E.6.6 | Pharmacokinetic | Yes |
E.6.7 | Pharmacodynamic | No |
E.6.8 | Bioequivalence | No |
E.6.9 | Dose response | No |
E.6.10 | Pharmacogenetic | No |
E.6.11 | Pharmacogenomic | No |
E.6.12 | Pharmacoeconomic | No |
E.6.13 | Others | No |
E.7 | Trial type and phase |
E.7.1 | Human pharmacology (Phase I) | No |
E.7.1.1 | First administration to humans | No |
E.7.1.2 | Bioequivalence study | No |
E.7.1.3 | Other | No |
E.7.1.3.1 | Other trial type description | |
E.7.2 | Therapeutic exploratory (Phase II) | No |
E.7.3 | Therapeutic confirmatory (Phase III) | Yes |
E.7.4 | Therapeutic use (Phase IV) | No |
E.8 Design of the trial |
E.8.1 | Controlled | Yes |
E.8.1.1 | Randomised | Yes |
E.8.1.2 | Open | No |
E.8.1.3 | Single blind | No |
E.8.1.4 | Double blind | Yes |
E.8.1.5 | Parallel group | No |
E.8.1.6 | Cross over | No |
E.8.1.7 | Other | No |
E.8.2 | Comparator of controlled trial |
E.8.2.1 | Other medicinal product(s) | No |
E.8.2.2 | Placebo | Yes |
E.8.2.3 | Other | No |
E.8.2.4 | Number of treatment arms in the trial | 3 |
E.8.3 |
The trial involves single site in the Member State concerned
| No |
E.8.4 | The trial involves multiple sites in the Member State concerned | Yes |
E.8.4.1 | Number of sites anticipated in Member State concerned | 2 |
E.8.5 | The trial involves multiple Member States | Yes |
E.8.5.1 | Number of sites anticipated in the EEA | 2 |
E.8.6 Trial involving sites outside the EEA |
E.8.6.1 | Trial being conducted both within and outside the EEA | Yes |
E.8.6.2 | Trial being conducted completely outside of the EEA | No |
E.8.6.3 | If E.8.6.1 or E.8.6.2 are Yes, specify the regions in which trial sites are planned |
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E.8.7 | Trial has a data monitoring committee | Yes |
E.8.8 |
Definition of the end of the trial and justification where it is not the last
visit of the last subject undergoing the trial
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E.8.9 Initial estimate of the duration of the trial |
E.8.9.1 | In the Member State concerned years | 1 |
E.8.9.1 | In the Member State concerned months | 1 |
E.8.9.1 | In the Member State concerned days | 6 |
E.8.9.2 | In all countries concerned by the trial years | 1 |
E.8.9.2 | In all countries concerned by the trial months | 2 |
E.8.9.2 | In all countries concerned by the trial days | 1 |