via Dr. Paolo:
Effect of a Single Dose of Oral Opioid and Nonopioid Analgesics on Acute Extremity Pain in the Emergency Department: A Randomized Clinical Trial
Andrew K. Chang, MD, MS; Polly E. Bijur, PhD; David Esses, MD; et al Douglas P. Barnaby, MD, MS; Jesse Baer, MD
JAMA. 2017;318(17):1661-1667. doi:10.1001/jama.2017.16190
The associated editorial may also be of interest.
Opioid vs Nonopioid Acute Pain Management in the Emergency Department
Demetrios N. Kyriacou, MD, PhD
JAMA. 2017;318(17):1655-1656. doi:10.1001/jama.2017.16725
Please also note that popular media is reporting (about as well/poorly as usual) about this study, mostly with very minor variations on the AP story.