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The Efficacy of DL-NBP in Patients With Mild Subcortical Ischemic Vascular Dementia

NCT03906123 · Status: UNKNOWN · Phase: NA · Type: INTERVENTIONAL · Enrollment: 64

Last updated 2019-04-08

No results posted yet for this study

Summary

This is a 48-week, double-blind, randomized, placebo-controlled study. Sixty-four patients are randomly assigned to take NBP (600mg per day) or placebo for 48 weeks, with 32 patients in each treatment group. Anti-dementia treatment-naive patients meet the inclusion/exclusion criteria are enrolled.

Patients are assigned to NBP will take 200mg tid daily. Patients are visited at baseline, as well as 4, 12, 24, 36, 48weeks after baseline. Safety data is recorded until an additional 30 days after the last treatment (48 weeks).

The primary outcomes include cognitive function and activities of daily living (ADL). All subjects are assessed at baseline, 4w, 12w,24w, 36w intermittent visit and 48w endpoint with the Auditory Verbal Learning Test (AVLT), the Brief Visuospatial Memory Test-Revised (BVMT-R), the Symbol Digit Modalities Test (SDMT), the Trail Making Test-A/B (TMT-A/B), the Benton Judgment of Line Orientation (JLO), the verbal fluency test, the Boston Naming Test (BNT), the Controlled Oral Word Association Test (COWAT), the Stroop test, the Mini-Mental State Examination (MMSE), the Montreal Cognitive Assessment (MoCA) and the ADL. The secondary outcomes include the global function and behavioral and psychological symptoms of dementia (BPSD), which are evaluated with the Clinical Dementia Rating (CDR) and the Neuropsychiatric Inventory (NPI), respectively. Independent raters who are blinded to patients' distribution are assigned to assess the participants.

The exploratory outcomes are markers of vascular regulation, including circulating endothelial progenitor cells (EPCs), white matter hyperintensities (WMH) on MRI, cerebral blood flow (CBF) measured with transcranial Doppler (TCD) and arterial spin labeling (ASL) MRI, and parameters of carotid duplex ultrasonic (CDU). In addition, apolipoprotein E (APOE) polymorphism and plasma biomarkers are also detected.

Safety are assessed at each visit.

Conditions

  • Subcortical Vascular Dementia
  • Cerebral Small Vessel Diseases

Interventions

DRUG

NBP

NBP soft capsules

DRUG

Placebos

Soft capsules manufactured to mimic NBP

Sponsors & Collaborators

  • Tianjin Medical University General Hospital

    lead OTHER

Principal Investigators

  • Nan Zhang, MD, PhD · Tianjin Medical University General Hospital

Study Design

Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
QUADRUPLE
Model
PARALLEL

Eligibility

Min Age
50 Years
Max Age
85 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2017-11-18
Primary Completion
2019-12-31
Completion
2020-01-31

Countries

  • China

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT03906123 on ClinicalTrials.gov