In all, the researchers identified and included 26 systematic reviews — including just one randomized, controlled trial regarding the use of cannabis products in RA — in their analysis.
This single trial included 58 patients and examined pain on movement, pain at rest, total pain intensity, morning stiffness, sleep quality, disease activity and adverse effects.
“The likelihood that the conclusions of this summary change with future evidence is high, given the scarcity of studies on the topic and the very low certainty of the evidence,” they added.