A 24 Week, Multicenter, Open, Evaluation of the Clinical Effectiveness of the Once-daily 10 cm^2 Rivastigmine Patch Formulation in Patients With Probable Alzheimer's Disease (EXTRA)

The study treatment was delivered as a patch sizes 5 and 10 cm\^2 containing respectively 9 and 18 mg of rivastigmine. During the first 4 weeks of the study, patients applied a new rivastigmine 5 cm\^2 patch once daily. At the end of the 4 weeks, if tolerability was satisfactory, the dosage was increased and patients applied rivastigmine 10 cm\^2 patch once daily for an additional 4 weeks. Thereafter, and until the end of the study, patients remained at the maximum tolerated dose, either 5 or 10 cm\^2.