Patients identified the agent they liked best
Dr. Hattersley and associates used the TriMaster study to also address the secondary question of which of the three tested agents patients preferred, focusing on the 457 patients who provided information on their treatment preference.
The results showed that patient preference varied: Twenty-four percent liked pioglitazone best, 33% preferred sitagliptin, and 37% said canagliflozin was their favorite, with 6% having no preference. These numbers barely budged when participants learned how well each agent worked for them in terms of reducing their A1c and lowering their BMI.
The findings also showed good correlation between patient preferences and their A1c and adverse-effect responses. The agents that patients identified as their favorites were also the drugs that lowered their A1c the most 53% of the time before they got any feedback on which one gave them their best glycemic control. Once they had this feedback, 70% preferred the most effective agent, with the results likely reflecting that patients feel better when they have improved glucose levels as well as the education patients received that lower A1c levels are better.
Patients also tended to understandably favor the agents that caused the fewest and mildest adverse effects: Sixty-eight percent of the patients who identified a favorite drug picked the one that gave them the best adverse-effect profile.
In an interview at the EASD 2022 annual meeting, Dr. Hattersley promoted the study’s design as a best-practice approach to deciding which drug to next give a person with type 2 diabetes who needs additional glycemic control.
“Whenever you’re not sure how to balance adverse effects and positive effects the best person to decide is the one who experiences the effects,” he said. “Patients had overwhelming positivity about being able to choose their drug. Do it when you’re not certain which drug to prescribe,” suggested Dr. Hattersley, a professor and diabetologist at the University of Exeter, England. “We can’t know which drug a patient might prefer.”
But he stressed cautioning patients to return for treatment adjustment sooner than 4 months if they can’t tolerate a new drug they’re trying.
TriMaster received no commercial funding. Dr. Hattersley has reported no relevant financial relationships.
A version of this article first appeared on Medscape.com.