A Clinical Trial to Demonstrate Clinical Efficacy on Cognitive, Neuropsychiatric and Functional Outcomes of Ambroxol in New and Early Patients With Prodromal and Mild Dementia With Lewybodies
This is a confirmatory investigational medicinal product (IMP) study to investigate the effects on cognition, functional decline and on neuropsychiatric symptoms of the Glucocerebrosidase (GCase) enhancing chaperone ambroxol in participants diagnosed with prodromal and early dementia with Lewybodies (DLB).
• Male or female.
• Age ≥ 50 and ≤ 85 years of age.
• Confirmed diagnosis of Dementia with Lewy Bodies (DLB) or Mild Cognitive Impairment in DLB (DLB-MCI).
• MMSE score\>=15
• Able and willing to provide informed consent prior to any study related assessments and procedures at screening visit 1.
• Capable of complying with all study procedures.
• Willing to provide blood samples for genetic analyses of APOE and GBA.
• Willing and able to self-administer or administer by a caregiver oral ambroxol medication, from day 1 to study end (at 60 mg TID (day 1-7), 120 mg TID (day 8- 14), 315 BID (day 15-21), 315 mg TID (day 22-28) and 420 mg TID (day 29-550)).
• Able to travel to the participating study site.
⁃ A female participant is eligible to participate if she is of:
⁃ Non-childbearing potential defined as pre-menopausal females with a documented tubal ligation or hysterectomy; or postmenopausal defined as 12 consecutive months of spontaneous amenorrhea, at least 6 weeks post-surgical bilateral oophorectomy (with or without hysterectomy) or post tubal ligation. In questionable cases, menopausal status will be confirmed by demonstrating levels of follicle stimulating hormone (FSH) 25.8 - 134.8 IU/L and oestradiol \< 201 pmol/l at entry.
⁃ Women of child-bearing potential must use accepted contraceptive methods (listed below), and must have a negative serum at screening visit 1 and urine pregnancy tests at subsequent visits if applicable. An additional pregnancy test will be performed, and results obtained, prior to administration of the first dose of ambroxol.
⁃ A female participant is eligible to participate if she is of:
‣ Non-childbearing potential defined as pre-menopausal females with a documented tubal ligation or hysterectomy; or postmenopausal defined as 12 consecutive months of spontaneous amenorrhea, at least 6 weeks post-surgical bilateral oophorectomy (with or without hysterectomy) or post tubal ligation. In questionable cases, menopausal status will be confirmed by demonstrating levels of follicle stimulating hormone (FSH) 25.8 - 134.8 IU/L and oestradiol \< 201 pmol/l at entry.
‣ Women of child-bearing potential must use accepted contraceptive methods (listed below), and must have a negative serum at screening visit 1 and urine pregnancy tests at subsequent visits if applicable. An additional pregnancy test will be performed, and results obtained, prior to administration of the first dose of ambroxol.