Actively Recruiting

Age: 65Years +
All Genders
ID05801380

Monitoring Drug Effects Using Multi-omics Research in Alzheimer's Disease Observational Study of Donepezil and Memantine Treatments

Led by University of the Philippines · Updated on 2025-01-07

60

Participants Needed

1

Research Sites

208 weeks

Total Duration

On this page

AI-Summary

What this Trial Is About

Researchers are investigating how different factors influence the response to two types of drug treatments—acetylcholinesterase (AChE) inhibitor donepezil and NMDA receptor antagonist memantine—in patients with Alzheimer's Disease. The study aims to monitor changes in gene signatures, gut microbiome metabolome, other metabolome signatures, and cognitive function over six months using various cognitive assessments. Participants will be divided into two groups based on the medication prescribed by their attending physician: one group receiving donepezil alone (AChE inhibitor monotherapy) and another group receiving a combination of donepezil and memantine (AChE inhibitor and NMDA receptor antagonist combination therapy). These treatments will be observed at baseline, 3 months, and 6 months to assess their effects on the patients. During the study, participants will undergo evaluations of gene expression, metabolome changes, and cognitive tests including the Montreal Cognitive Assessment-Philippines (MoCA-P), Mini-Mental State Examination (MMSE), and Alzheimer's Disease Assessment Scale-cognitive subscale (ADAS-cog) at baseline, 3 months, and 6 months. Researchers will track treatment response and monitor safety throughout the 6-month follow-up period.

CONDITIONS

Official Title

Monitoring Drug Efficacy in Patients with Alzheimer's Disease

Who Can Participate

Age: 65Years +
All Genders

Eligibility Criteria

Eligible

You may qualify if you...

  • Newly diagnosed with mild or moderate dementia using the Montreal Cognitive Assessment and Clinical Dementia Rating performed by a licensed psychometrician
  • Clinically diagnosed by an expert adult neurologist as having probable Alzheimer's Disease using NINCDS-ADRDA criteria
  • Treatment naive for acetylcholinesterase inhibitors or memantine, or not taken these drugs in the last 3 months except for adverse drug reaction
  • Age 65 years old or older
  • Residing in the National Capital Region
  • Able to read and understand written and spoken English and Filipino
Not Eligible

You will not qualify if you...

  • Structural or vascular causes of dementia other than subcortical lacunes (2 or less) seen in plain CT scan
  • Dementia diagnosis other than Alzheimer's Disease as determined by an expert neurologist
  • Untreated depression or related psychiatric disorders in the last 6 months
  • Use of systemic antibiotics in the previous 3 months before providing fecal specimens
  • Use of corticosteroids, immune stimulating medications, or immunosuppressive agents within past 2 weeks or regularly for immune disorders
  • Use of proton-pump inhibitors, H2-receptor antagonists, tricyclic antidepressants, narcotics, anticholinergic medications, laxatives, or anti-diarrheal in past 4 weeks
  • Consumption of large doses of commercial probiotics (≥108 cfu per day)
  • Major dietary change during previous month
  • Major gastrointestinal surgery in past 5 years except cholecystectomy and appendectomy
  • Major bowel resection at any time
  • Active uncontrolled gastrointestinal disorders or diseases including inflammatory bowel disease, indeterminate colitis, irritable bowel syndrome, persistent infectious gastroenteritis, colitis or gastritis, chronic diarrhea of unknown cause, recurrent Clostridium difficile infection, untreated Helicobacter pylori infection, chronic constipation

AI-Screening

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Trial Site Locations

Total: 1 location

1

Philippine General Hospital

Manila, National Capital Region, Philippines, 1000

Actively Recruiting

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Research Team

F

Fresthel Monica M Climacosa, MD, PhD

V

Veeda Michelle M Anlacan, MD

How is the study designed?

Study Type

OBSERVATIONAL

Masking

N/A

Allocation

N/A

Model

N/A

Primary Purpose

N/A

Number of Arms

2

Frequently Asked Questions

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Published Research Related To This Trial

Challenges in community-based recruitment of Alzheimer's disease cases: Experience of the monitoring drug efficacy through multi-omics research initiative in Alzheimer's disease (MEMORI-AD) study.

Fresthel Monica M Climacosa, Eric David B Ornos, Erwin Rommel S Diwa...

https://pubmed.ncbi.nlm.nih.gov/41929959

Monitoring drug Efficacy through Multi-Omics Research initiative in Alzheimer's Disease (MEMORI-AD): A protocol for a multisite exploratory prospective cohort study on the drug response-related clinical, genetic, microbial and metabolomic signatures in Filipino patients with Alzheimer's disease.

Fresthel Monica M Climacosa, Veeda Michelle M Anlacan, Francis James A Gordovez...

https://pubmed.ncbi.nlm.nih.gov/39608999