Lay Description

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.


  • Dementia / Alzheimers
IRB Number
NCT Number
Open to Enrollment


Eligible Ages
Over 65 Years
Eligible Genders
Accepts Healthy Volunteers

Inclusion Criteria

  1. Age 65 years or above.
  2. Clinical diagnosis of AD (MoCA 10-18 and Clinical Dementia Rating Scale/CDR = 1) on a stable dose of cholinesterase inhibitors for at least three months
  3. Body Mass Index (BMI) within range of 19 - 35 kg/ m2
  4. 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
  5. 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
  6. Participants must have no plans to travel over the next 4-5 months that interfere with study visits following consent

Exclusion Criteria

  1. Hearing, vision, or motor deficits despite corrective devices;
  2. Alcohol or drug abuse;
  3. MRI contraindications;
  4. 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;
  5. Participants with coagulation disorders;
  6. Neurologic, musculoskeletal, or other condition that limits subject's ability to complete study physical assessments;
  7. Uncontrolled diabetes (HbA1c > 7% or the current use of insulin);
  8. Current or chronic history of liver disease, or known hepatic or biliary abnormalities;
  9. Use of anti-arrhythmic medications known to cause QTc prolongation, anti-platelet or anti-coagulant medication;
  10. Current use of quinolone antibiotics.
  11. Poorly controlled blood pressure (systolic BP>160, diastolic BP>90 mmHg).
  12. Active inflammatory, autoimmune, infectious, hepatic, gastrointestinal, malignant, and psychiatric disease.
  13. History of or MRI-positive for any space occupying lesion, including mass effect or abnormal intracranial pressure, which would indicate contraindication to lumbar puncture

Study Design

Arm Groups

Study Contact

Mitzi Gonzales
(210) 450-9047

Diana Jarbeau-may
(210) 617-5390

Floyd Jones
+1 (210) 450-3158

Amy Saklad
(210) 567-8229

Floyd Jones
+1 (210) 450-3158

Amy Saklad
(210) 567-8229

Principal Investigator
Mitzi Gonzales