Abbreviations: aboBoNT-A, abobotulinumtoxinA; AUD, Australian dollar; BSC, best supportive care; PBS DPMQ, Pharmaceutical Benefits Scheme’s Dispensed Price for Maximum Quantity; MBS, Medicare Benefits Schedule; TP, transition probability; QoL, quality of life. *In line with standard practice, cost of the vial is not included in the PSA as the price is fixed and there is no uncertainty in the value.