OPAL: a randomised, placebo-controlled trial of opioid analgesia for the reduction of pain severity in people with acute spinal pain-a statistical analysis plan.
Caitlin M P JonesChung-Wei Christine LinRichard Osborne DayBart W KoesJane LatimerChristopher G MaherAndrew J McLachlanLaurent BillotPublished in: Trials (2022)
ACTRN12615000775516 . The trial has completed recruitment. Follow-up on the last patient will be completed in March 2022.