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Alzheimer DiseasePhase 1/2SToMP-ADNCT04063124

Senolytic Therapy to Modulate Progression of Alzheimer's Disease

A Phase 1/2 study testing Dasatinib + Quercetin in people with Alzheimer Disease, run by The University of Texas Health Science Center at San Antonio at 1 site in United States.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The purpose of this pilot study is to evaluate whether a combination of two drugs, dasatinib (D) and quercetin (Q) [D+Q], penetrate the brain using cerebrospinal fluid (CSF) in older adults with early Alzheimer's disease (AD). Read more about this study

Who is it for?
Ages 65 years and older
Conditions the study is for
Alzheimer Disease
What is being tested?
Dasatinib + Quercetin
Could I receive a placebo?
No, everyone receives an active treatment
How many people
5 participants
Where
1 siteUnited States
Study dates
14 Feb 2020to 30 Jan 2023
Phase
Phase 1/2
Are there results?
Yes, posted in the registrySummary in the doctors' view

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 65 years and older
  • All sexes
  • No healthy volunteers
  • Older adult

Who may be able to join

  • Age 65 years or above.
  • Clinical diagnosis of AD (MoCA 10-20 and Clinical Dementia Rating Scale/CDR = 1) on a stable dose of cholinesterase inhibitors for at least three months
  • Body Mass Index (BMI) within range of 19 - 35 kg/ m2
  • Labs: Normal blood cell counts without clinically significant excursions (WBCs: 4,500-10,500 cells/mcL; absolute neutrophil count: 1,800-8,700 cells/mcL; platelets: 140-450 K/uL; hemoglobin 12.0-17.5 grams/dL); liver and renal function (AST 10-40 IU/L, total bilirubin 0.1-1.4 mg/dl); cholesterol (<240 mg/dl), triglycerides (<300 mg/dl), and glucose control (HbA1c < 7%). PT/PTT/INR within normal limits
  • Participants must be accompanied by a Legally Authorized Representative designated to sign informed consent and to provide study partner reported outcomes at all remaining visits
  • Participants must have no plans to travel over the next 4-5 months that interfere with study visits following consent

Who cannot join

  • Hearing, vision, or motor deficits despite corrective devices;
  • Alcohol or drug abuse;
  • MRI contraindications;
  • Myocardial infarction, angina, stroke or transient ischemic attack in the past 6 months; QT interval >440 on ECG will not be enrolled. Chronic heart failure will be exclusionary;
  • Participants with coagulation disorders;
  • Neurologic, musculoskeletal, or other condition that limits subject's ability to complete study physical assessments;
Show all 13Show fewer
  • Uncontrolled diabetes (HbA1c > 7% or the current use of insulin);
  • Current or chronic history of liver disease, or known hepatic or biliary abnormalities;
  • Use of anti-arrhythmic medications known to cause QTc prolongation, anti-platelet or anti-coagulant medication;
  • Current use of quinolone antibiotics.
  • Poorly controlled blood pressure (systolic BP>160, diastolic BP>90 mmHg).
  • Active inflammatory, autoimmune, infectious, hepatic, gastrointestinal, malignant, and psychiatric disease.
  • History of or MRI-positive for any space occupying lesion, including mass effect or abnormal intracranial pressure, which would indicate contraindication to lumbar puncture

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Glenn Biggs Institute for Alzheimer's & Neurodegenerative Diseases

    San Antonio, Texas, 78229

Other trials in United States

About this study

Official title: Pilot Study to Investigate the Safety and Feasibility of Senolytic Therapy to Modulate Progression of Alzheimer's Disease (SToMP-AD)

The purpose of this pilot study is to evaluate whether a combination of two drugs, dasatinib (D) and quercetin (Q) [D+Q], penetrate the brain using cerebrospinal fluid (CSF) in older adults with early Alzheimer's disease (AD). This combination of drug therapy has been shown to affect dying cells in humans with other chronic illnesses and in Alzheimer's mice models. The study team want to know if this combination of medications will reach the brain in order to evaluate if this intervention may be effective for treating AD symptoms in future studies. This is also known as a "proof of concept" study.

Read the detailed description

Up to 40 potential candidates will be pre-screened to identify eligible men and women ages 65 years and over with a clinical diagnosis of early AD on a stable dose of cholinesterase inhibitors for at least 3 months (for example, Aricept).

Eligible participants will undergo laboratory assessments of blood and urine, receive study medications over a twelve week period, and complete pre- and post-treatment testing including: an MRI for digital imaging of the brain; lumbar puncture to obtain cerebrospinal fluid; memory and thinking assessments; quality of life questionnaires; and tests of walking, balance and strength, all of which will be done for research purposes only.

Participants must be accompanied by a Legally Authorized Representative and have no travel plans for 4-5 months that would interfere with study visits.

Being tested
Dasatinib + Quercetin
Keywords
Dementia, Alzheimer, Cognitive decline, dasatinib
Medical subject headings
Alzheimer Disease, Dementia, Cognitive Dysfunction

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Dasatinib + QuercetinDrug

    Also called D+Q

    Intermittent D+Q administered for 2 days on/14 days off for 12 weeks (6 cycles)

Study groups in NCT04063124
Study groupRoleWhat they receive
Intermittent D+QExperimentalSenolytic treatment in 5 individuals with early AD to determine levels of drug that reach the central nervous system (CNS) by collecting cerebral spinal fluid (CSF), and begin collecting initial data on target engagement of senescent cells, AD-related markers, and AD-relevant outcomes for future trials.
Receives: Drug: Dasatinib + Quercetin

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Brain Penetrance of Dasatinib (D)

    Cerebrospinal Fluid (CSF) collected by lumbar puncture before and after 12 weeks of treatment to determine levels of drug that reach the central nervous system will be measured by high performance liquid chromatography/mass spectrometry (HPLC/MS)

    Measured: Change from 0 to 12 weeks

  2. Brain Penetrance of Quercetin (Q)

    CSF collected by lumbar puncture before and after 12 weeks of treatment to determine levels of drug that reach the central nervous system using HPLC/MS

    Measured: Change from 0 to 12 weeks

Secondary outcomes (6)
  1. Alzheimer's Disease Marker - CSF Tau

    Cerebrospinal Fluid collected by lumbar puncture analyzed for level of tau proteins present in CSF

    Measured: Change from 0 to 12 weeks

  2. Alzheimer's Disease Marker - CSF Amyloid Beta

    Cerebrospinal Fluid collected by lumbar puncture analyzed for level of amyloid beta proteins present in CSF

    Measured: Change from 0 to 12 weeks

  3. Senescence Marker IL-6 in CSF

    Laboratory measure of level of IL-6 found in CSF collected pre and post treatment

    Measured: Change from 0 to 12 weeks

  4. Senescence Marker P16 in CSF

    Laboratory measure of level of P16 found in CSF collected pre and post treatment

    Measured: Change from 0 to 12 weeks

  5. Electronic Gait Mapping Under Single and Dual-task Conditions

    Participants walk on a pressure-sensitive walkway to capture data on gait speed

    Measured: Change from 0 to 12 weeks

  6. Montreal Cognitive Assessment (MoCA)

    A test which scores the participant with score ranges between 0 and 30. A score of 26 or over is considered normal. Individuals with mild cognitive impairment score lower and individuals with Alzheimer's disease score even lower.

    Measured: Change from 0 to 12 weeks

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted21 Aug 2019
  2. Study start14 Feb 2020
  3. Primary completion10 Dec 2021
  4. Study completion30 Jan 2023

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 1/2
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Model description
This study is an open-label pilot study of intermittent D+Q to measure its target engagement in CSF and blood, and to establish the feasibility and safety of D+Q treatment in older adults with early stage AD as initial proof-of-concept for a larger Phase 2 clinical trial.
Masking
None (open label)
Enrolment
5 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04063124
Sponsor's protocol ID
HSC20190222H
Acronym
SToMP-AD
Status last verified
Feb 2023
First submitted
1 Aug 2019
Last updated
6 Mar 2023
Data monitoring committee
Yes
FDA-regulated drug
Yes
FDA-regulated device
No
Individual data sharing
Yes: All IPD that underlie results in a publication

Publications

  • Garbarino VR, Palavicini JP, Melendez J, Barthelemy NR, He Y, Kautz TF, Lopez-Cruzan M, Mathews JJ, Xu P, Zhang B, Saliba A, Ragi N, Sharma K, Mason D, Johnson S, Hendrix S, Craft S, Petersen RC, Espindola-Netto JM, Xue A, Tchkonia T, Kirkland JL, Salardini A, Musi N, Bateman RJ, Gonzales MM, Orr ME. Evaluation of exploratory fluid biomarkers from a phase 1 senolytic trial in mild Alzheimer's disease. Neurotherapeutics. 2025 Jul;22(4):e00591. doi: 10.1016/j.neurot.2025.e00591. Epub 2025 Apr 23.

    PubMed 40274471
  • Andrews TD, Day GS, Irani SR, Kanekiyo T, Hickson LJ. Uremic Toxins, CKD, and Cognitive Dysfunction. J Am Soc Nephrol. 2025 Jun 1;36(6):1208-1226. doi: 10.1681/ASN.0000000675. Epub 2025 Feb 26.

    PubMed 40009460
  • Garbarino VR, Palavicini JP, Melendez J, Barthelemy N, He Y, Kautz TF, Lopez-Cruzan M, Mathews JJ, Xu P, Zhan B, Saliba A, Ragi N, Sharma K, Craft S, Petersen RC, Espindola-Netto JM, Xue A, Tchkonia T, Kirkland JL, Seshadri S, Salardini A, Musi N, Bateman RJ, Gonzales MM, Orr ME. Evaluation of Exploratory Fluid Biomarker Results from a Phase 1 Senolytic Trial in Mild Alzheimer's Disease. Res Sq [Preprint]. 2024 Mar 8:rs.3.rs-3994894. doi: 10.21203/rs.3.rs-3994894/v1.

    PubMed 38496619
  • Gonzales MM, Garbarino VR, Kautz TF, Palavicini JP, Lopez-Cruzan M, Dehkordi SK, Mathews JJ, Zare H, Xu P, Zhang B, Franklin C, Habes M, Craft S, Petersen RC, Tchkonia T, Kirkland JL, Salardini A, Seshadri S, Musi N, Orr ME. Senolytic therapy in mild Alzheimer's disease: a phase 1 feasibility trial. Nat Med. 2023 Oct;29(10):2481-2488. doi: 10.1038/s41591-023-02543-w. Epub 2023 Sep 7.

    PubMed 37679434
  • Sarkar P, Kumar A, Behera PS, Thirumurugan K. Phytotherapeutic targeting of the mitochondria in neurodegenerative disorders. Adv Protein Chem Struct Biol. 2023;136:415-455. doi: 10.1016/bs.apcsb.2023.02.013. Epub 2023 Mar 24.

    PubMed 37437986
  • Gonzales MM, Garbarino VR, Marques Zilli E, Petersen RC, Kirkland JL, Tchkonia T, Musi N, Seshadri S, Craft S, Orr ME. Senolytic Therapy to Modulate the Progression of Alzheimer's Disease (SToMP-AD): A Pilot Clinical Trial. J Prev Alzheimers Dis. 2022;9(1):22-29. doi: 10.14283/jpad.2021.62.

    PubMed 35098970
  • Gonzales MM, Krishnamurthy S, Garbarino V, Daeihagh AS, Gillispie GJ, Deep G, Craft S, Orr ME. A geroscience motivated approach to treat Alzheimer's disease: Senolytics move to clinical trials. Mech Ageing Dev. 2021 Dec;200:111589. doi: 10.1016/j.mad.2021.111589. Epub 2021 Oct 21.

    PubMed 34687726

Questions about this trial

What is this clinical trial studying?

A Phase 1/2 study testing Dasatinib + Quercetin in people with Alzheimer Disease, run by The University of Texas Health Science Center at San Antonio at 1 site in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 6 inclusion and 13 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 6 Mar 2023. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this combined phase mean?

Phase 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.

Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

Yes. Results are posted in the registry (first posted 6 Mar 2023). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Brain Penetrance of Dasatinib (D) (time frame: Change from 0 to 12 weeks). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT04063124, which also lists 7 linked publications.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 6 Mar 2023.

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