Efficacy of Isradipine in Early Parkinson Disease
clinicaltrials.gov/ct2/show/NCT02168842

Ambroxol in Disease Modification in Parkinson Disease (AiM-PD)
clinicaltrials.gov/ct2/show/NCT02941822

Ambroxol as a Treatment for Parkinson's Disease Dementia
clinicaltrials.gov/ct2/show/NCT02914366