NCT04691505

Brief Summary

This study aims to evaluate the comparative risk of dementia/Alzheimer's disease onset between patients treated with medications that target specific metabolic pathways and patients treated with alternative medications for the same indication.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
133,553

participants targeted

Target at P75+ for all trials

Timeline
Completed

Started Dec 2020

Shorter than P25 for all trials

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

December 23, 2020

Completed
5 days until next milestone

First Submitted

Initial submission to the registry

December 28, 2020

Completed
3 days until next milestone

First Posted

Study publicly available on registry

December 31, 2020

Completed
8 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

August 31, 2021

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

August 31, 2021

Completed
Last Updated

November 23, 2021

Status Verified

November 1, 2021

Enrollment Period

8 months

First QC Date

December 28, 2020

Last Update Submit

November 15, 2021

Conditions

Outcome Measures

Primary Outcomes (1)

  • Time to dementia onset

    Time to dementia onset, i.e., Alzheimer's disease, vascular dementia, senile, presenile, or unspecified dementia, or dementia in other diseases classified elsewhere. Please refer to uploaded protocol for full definition due to size limitations.

    Through study completion (a median of 237 days)

Secondary Outcomes (1)

  • Time to Alzheimer's disease onset

    Through study completion (a median of 237 days)

Study Arms (2)

Methotrexate

Reference group

Drug: Methotrexate

Hydroxychloroquine

Exposure group

Drug: Hydroxychloroquine

Interventions

Methotrexate is used as the reference group.

Methotrexate

Hydroxychloroquine is used as the exposure group.

Hydroxychloroquine

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

This study will involve a new user, parallel group, cohort study design comparing methotrexate to hydroxychloroquine. The patients will be required to have continuous enrollment during the baseline period of 355 days before initiation of methotrexate or hydroxychloroquine (cohort entry date). Follow-up for the outcome (incident dementia), begins the day after drug initiation for analyses 1, 3, and 4 and 180 days after drug initiation for analysis 2.

You may qualify if:

  • \. No prior use of methotrexate or hydroxychloroquine anytime prior to cohort entry date
  • \. Enrollment in Medicare Part A, B, and D with no HMO coverage for 365 days prior to and including cohort entry date

You may not qualify if:

  • \. Prior history of dementia measured anytime prior to cohort entry date
  • \. No prior history of rheumatoid arthritis recorded in the 365 days prior to cohort entry date
  • \. Prior history of nursing home admission in the 365 days prior to the cohort entry date
  • \. Prior history of DMARD use measured anytime prior to cohort entry date

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Brigham and Women's Hospital

Boston, Massachusetts, 02120, United States

Location

MeSH Terms

Conditions

Arthritis, Rheumatoid

Interventions

MethotrexateHydroxychloroquine

Condition Hierarchy (Ancestors)

ArthritisJoint DiseasesMusculoskeletal DiseasesRheumatic DiseasesConnective Tissue DiseasesSkin and Connective Tissue DiseasesAutoimmune DiseasesImmune System Diseases

Intervention Hierarchy (Ancestors)

AminopterinPterinsPteridinesHeterocyclic Compounds, 2-RingHeterocyclic Compounds, Fused-RingHeterocyclic CompoundsChloroquineAminoquinolinesQuinolines

Study Officials

  • Rishi J Desai, PhD

    Brigham and Women's Hospital

    PRINCIPAL INVESTIGATOR
  • Madhav Thambisetty, MD, PhD

    National Institute on Aging (NIA)

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
RETROSPECTIVE
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Assistant Professor

Study Record Dates

First Submitted

December 28, 2020

First Posted

December 31, 2020

Study Start

December 23, 2020

Primary Completion

August 31, 2021

Study Completion

August 31, 2021

Last Updated

November 23, 2021

Record last verified: 2021-11

Locations