Maltoni, M., Scarpi, E., Modonesi, C., Passardi, A., Calpona, S., Turriziani, A., . . . Amadori, D. (2005). A validation study of the WHO analgesic ladder: A two-step vs. three-step strategy. Supportive Care in Cancer, 13, 888–894.
To determine if, on the WHO analgesic ladder, passing directly from step 1 to step 3 is more effective than the traditional three-step strategy for treating chronic cancer pain; to evaluate the tolerability and therapeutic index of both strategies
Over 24 months, patients were monitored at home by telephone or a home health nurse. The study design included two arms: in one, patients moved from step 1 to step 3 (with treatment with strong opioids); in the other, patients moved from step 1, to step 2 (with treatment with weak opioids), to step 3.
Italy
Randomized controlled trial
Preliminary data suggest that a direct move to the third step is feasible and could reduce some pain scores. The two-step strategy this study supports requires careful management of side effects.
The study had a small sample size.