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- Title
Safety and Tolerability of Biphasic Immediate-Release/Extended-Release Oxycodone/Acetaminophen Tablets: Analysis of 11 Clinical Trials.
- Authors
Barrett, Thomas; Kostenbader, Kenneth; Nalamachu, Srinivas; Giuliani, Michael; Young, Jim L.
- Abstract
Objectives To characterize the safety of immediate-release (IR)/extended-release (ER) oxycodone (OC)/acetaminophen (APAP). Methods Data were assessed from 9 phase 1 trials in healthy volunteers and recreational users of prescription opioids ( N = 405), including 5 single-dose and 3 multidose open-label pharmacokinetic studies of IR/ER OC/APAP and active comparators; and 1 randomized, controlled, single-dose human abuse potential (HAP) study comparing IR/ER OC/APAP, IR OC/APAP, and placebo in recreational users of opioids; and 2 phase 3 trials ( N = 701) including a 48-hour placebo-controlled safety and efficacy study in patients with moderate to severe postbunionectomy pain with a 14-day open-label safety extension and a long-term (≤ 35 days) open-label safety study in patients with chronic osteoarthritis pain or chronic low back pain. Results Adverse events (AEs) experienced by ≥ 10% of participants receiving IR/ER OC/APAP in all trials were pruritus, nausea, vomiting, dizziness, headache, and somnolence; these AEs occurred with similar frequency for equianalgesic doses of IR OC/APAP and IR OC but less frequently for IR tramadol HCl/APAP. In the HAP study, crushing IR/ER or IR OC/APAP tablets did not increase frequency of AEs. Constipation was experienced by < 10% of participants receiving IR/ER OC/APAP. No serious (SAE) or severe AEs were reported in phase 1 trials. In phase 3 trials of 8 reported SAEs, only 1 treatment-related SAE (hypersensitivity to placebo) required treatment discontinuation. No clinically meaningful changes in vital signs, oxygen saturation, electrocardiograms, or laboratory values were reported. Conclusions Safety and tolerability of IR/ER OC/APAP are similar to other low-dose opioid/APAP analgesics.
- Subjects
THERAPEUTIC use of narcotics; ANALGESICS; REACTIVE oxygen species; BIOAVAILABILITY; CHRONIC pain; CONSTIPATION; DIZZINESS; HEADACHE; ITCHING; MEDICAL prescriptions; NAUSEA; OXYGEN in the body; PATIENT safety; PLACEBOS; RECREATION; VOLUNTEERS; VOMITING; ADVERSE health care events; LUMBAR pain
- Publication
Pain Practice, 2016, Vol 16, Issue 7, p856
- ISSN
1530-7085
- Publication type
Article
- DOI
10.1111/papr.12324