NCT05838560

Brief Summary

This pilot open-label study examines the effects of a combination of dasatinib plus quercetin - two drugs that have known senolytics properties - on physiological aging in older individuals with depression or schizophrenia.

Trial Health

75
On Track

Trial Health Score

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

Enrollment
40

participants targeted

Target at P25-P50 for phase_2 schizophrenia

Timeline
17mo left

Started Jul 2023

Longer than P75 for phase_2 schizophrenia

Geographic Reach
1 country

1 active site

Status
active not recruiting

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 Progress67%
Jul 2023Oct 2027

First Submitted

Initial submission to the registry

April 17, 2023

Completed
14 days until next milestone

First Posted

Study publicly available on registry

May 1, 2023

Completed
2 months until next milestone

Study Start

First participant enrolled

July 1, 2023

Completed
4.3 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

October 1, 2027

Expected
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

October 1, 2027

Last Updated

April 21, 2026

Status Verified

April 1, 2026

Enrollment Period

4.3 years

First QC Date

April 17, 2023

Last Update Submit

April 15, 2026

Conditions

Keywords

SchizophreniaTreatment Resistant DepressionAging, PrematureOlder Adults

Outcome Measures

Primary Outcomes (1)

  • Number of participants who successfully completed and safely tolerated the intervention

    Test the safety and feasibility of dasatinib plus quercetin

    10 weeks

Study Arms (1)

Dasatinib + quercetin

EXPERIMENTAL

open label dasatinib plus quercetin combined as a drug therapy

Drug: DasatinibDrug: quercetin

Interventions

dasatinib 100mg The intervention will involve the participant taking dasatinib 100mg and quercetin 1250ng combined.

Also known as: sprycel, sophoretin
Dasatinib + quercetin

The intervention will involve the participant taking dasatinib 100mg and quercetin 1250ng combined.

Also known as: quercetine, Vitamine P
Dasatinib + quercetin

Eligibility Criteria

Age50 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Either major depression, which is treatment-resistant (currently depressed despite at least 2 adequate trials of antidepressants in this or the previous episode), or schizophrenia/schizoaffective disorder.
  • Age 50+ (60+ for depression).
  • Three conditions associated with aging (e.g., hypertension/diabetes/metabolic syndrome, cardiac disease, lung disease other than asthma, cancer with adult-onset, arthritis, and inflammatory diseases typically seen in aging).
  • No history of dementia by patient report.
  • Already taking an adequate dose of medication for schizophrenia/schizoaffective disorder or depression.

You may not qualify if:

  • Contraindications for dasatinib or quercetin
  • Active SI such that participant could not be safely managed in an outpatient clinical trial.
  • Taking medications that are strong CPY3A4 inhibitors or strong inducers, or that induce senescence (e.g., alkylating agents, anthracyclines, platins/other chemotherapy), or everolimus and topotecan (which have interactions with quercetin).
  • All medications and medical conditions will be reviewed by physician study investigators to determine whether the medication or condition, in the opinion of the investigators, makes the participant inappropriate for the study. Examples of such potential excluding conditions: Active inflammatory, infectious, or malignant disease; sensory deficits that would interfere with assessments; recent heart attack or stroke; severe bleeding disorder; uncontrolled hypertension or diabetes mellitus; active liver disease or cirrhosis; current use of systemic steroids, quinolone antibiotics, hydroxychloroquine or chloroquine.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Washington University School of Medicine

St Louis, Missouri, 63110, United States

Location

Related Publications (1)

  • Schweiger A, Diniz B, Nicol G, Schweiger J, Dasklakis-Perez AE, Lenze EJ. Protocol for a pilot clinical trial of the senolytic drug combination Dasatinib Plus Quercetin to mitigate age-related health and cognitive decline in mental disorders. F1000Res. 2025 Mar 5;13:1072. doi: 10.12688/f1000research.151963.2. eCollection 2024.

MeSH Terms

Conditions

SchizophreniaDepressive Disorder, Treatment-ResistantAging, Premature

Interventions

DasatinibQuercetin

Condition Hierarchy (Ancestors)

Schizophrenia Spectrum and Other Psychotic DisordersMental DisordersDepressive DisorderMood DisordersSigns and SymptomsPathological Conditions, Signs and Symptoms

Intervention Hierarchy (Ancestors)

ThiazolesSulfur CompoundsOrganic ChemicalsAzolesHeterocyclic Compounds, 1-RingHeterocyclic CompoundsPyrimidinesFlavonolsFlavonoidsChromonesBenzopyransPyransHeterocyclic Compounds, 2-RingHeterocyclic Compounds, Fused-Ring

Study Officials

  • Eric Lenze, MD

    Washington University School of Medicine, Department of Psychiatry

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
phase 2
Allocation
NA
Masking
NONE
Purpose
PREVENTION
Intervention Model
SINGLE GROUP
Model Details: Open-label
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

April 17, 2023

First Posted

May 1, 2023

Study Start

July 1, 2023

Primary Completion (Estimated)

October 1, 2027

Study Completion (Estimated)

October 1, 2027

Last Updated

April 21, 2026

Record last verified: 2026-04

Data Sharing

IPD Sharing
Will share

Deidentified data available upon request

Shared Documents
STUDY PROTOCOL, SAP, ICF
Time Frame
Data will be available by request within 1 year of the final data collection.
Access Criteria
Contact study PI

Locations