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5 Study Matches

Impact of Intensive Treatment of SBP on Brain Perfusion, Amyloid, and Tau (IPAT Study) (IPAT)

The purpose of this study is to determine if intensive lowering of systolic blood pressure (SBP), using FDA approved medications (antihypertensive), reduces Alzheimer's Disease pathology (i.e., excessive brain amyloid and tau protein deposition) in older adults at high risk for memory decline or dementia.

Call 214-648-5005
studyfinder@utsouthwestern.edu, Tristyn.Hall@UTSouthwestern.edu

Rong Zhang
18315
All
60 Years to 85 Years old
Phase 2
This study is NOT accepting healthy volunteers
NCT05331144
STU-2021-1210
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Inclusion Criteria:

• Age 60-85, all races/ethnicities, and both sexes are eligible;
• Mini-Mental State Exam (MMSE) ≥ 26 to exclude gross dementia; based on clinical judgment, may be rescreened in ≥ 7 days;
• Individuals with SBP ≥ 130 and SBP ≤ 180 if on 0 or 1 antihypertensive medications; ≥130 and ≤170 on up to 2 medications; ≥130 and ≤160 on up to 3 medications; ≥130 and ≤150 on up to 4 medications. Those on antihypertensives are eligible. If an individual, not treated for hypertension (HTN), has a SBP ≥ 125 mmHg, consider rescreening after 24 hours;
• Willingness to be randomized into the treatment groups and ability to return to clinic for follow-up visits over 24 months;
• Fluency in English or Spanish or both, adequate visual and auditory acuity to allow neuropsychological testing;
• Participants must have a regular healthcare provider.
Exclusion Criteria:

• Clinically documented history of stroke, focal neurological signs or other major cerebrovascular diseases based on clinical judgment or MRI/CT scans such as evidence of infection, infarction, or other brain lesions;
• Diagnosis of AD or other type of dementia, or significant neurologic diseases such as Parkinson's disease, seizure disorder, multiple sclerosis, history of severe head trauma or normal pressure hydrocephalus;
• Evidence of severe major depression (GDS ≥ 12, may be rescreened after 12 weeks or longer if evidence of reactive depression or temporary mood disturbances) or clinically significant psychopathology, (e.g., psychosis and schizophrenia); if hospitalized in past year, can be rescreened in 6 months; or presence of a major psychiatric disorder that in the investigator's opinion, could interfere with adherence to research assessments or procedures.
• Unstable heart disease based on clinical judgment (e.g., heart attack/cardiac arrest, cardiac bypass procedures within previous 6 months and congestive heart failure), or other severe medical conditions;
• History of atrial fibrillation and evidence on ECG with any of the following: active symptoms of persistent palpitation, dizziness, history of syncope, chest pain, dyspnea, orthopnea, shortness of breath at rest, or paroxysmal nocturnal dyspnea within the past 6 months; resting heart rate of < 30 or > 110 bpm; taking class I or III antiarrhythmic drugs including flecainide, propafenone, dronedarone, sotalol, dofetilide, and amiodarone; or clinical concerns for safely participating in lowering blood pressure.
• Systolic BP equal or greater than 180 mmHg and/or diastolic BP equal or greater than 110 mmHg, may be rescreened in 1 week.
• Orthostatic hypotension, defined as the third standing SBP < 100mmHg, may be rescreened after 2 weeks;
• History of significant autoimmune disorders such as systemic lupus erythematosus, rheumatoid arthritis or polymyalgia rheumatica;
• Significant history of alcoholism or drug abuse within the last five years;
• Uncontrolled diabetes mellitus, defined as hemoglobin A1C > 7.5%, or requiring insulin treatment;
• Regularly smoking cigarettes within the past year;
• Pacemaker or other medical device of metal that precludes performing MRI;
• Women with a potential for pregnancy, lactation/childbearing (2 year post-menopausal or surgically sterile to be considered not childbearing potential);
• Participant enrolled in another investigational drug or device study, either currently or within the past 2 months;
• Severe obesity with BMI > 40 ; clinical judgment should be applied in all cases to assess patient safety and anticipated compliance;
• Allergy to angiotensin receptor blockers (ARBs), i.e., drugs that have a suffix "-sartan"; allergy to amlodipine;
• Abnormal screening laboratory tests (e.g., liver ALT and AST > 3 x ULN, GFR < 30 or Hct < 28%); may be rescreened after 2 weeks or longer;
• A medical condition likely to limit survival to less than 3 years;
• Participant has any condition(s) judged by the study investigator to be medically inappropriate, risky or likely to cause poor study compliance. For example:
• Plans to move outside the clinic catchment area in the next 2 years;
• Significant concerns about participation in the study from spouse, significant other, or family members;
• Lack of support from primary health care provider;
• Residence too far from the study clinic site such that transportation is a barrier including persons who require transportation assistance provided by the study clinic funds for screening or randomization visits;
• Residence in a nursing home; persons residing in an assisted living or retirement community are eligible if they meet the other criteria;
• Other medical, psychiatric, or behavioral factors that, in the judgment of the site PI or clinician, may interfere with study participation or the ability to follow the study Protocol.
• Couples or significant partners who live together cannot be enrolled or participate simultaneously in the study.
Drug: Angiotensin II Receptor Blockers (ARBs, losartan) and Calcium Channel Blockers (CCB, amlodipine), Other: PCP
Hypertension, Cognitively Normal Older Adults, Subjective Cognitive Decline, Brain and Nervous System, Family History of Dementia
Dementia, Alzheimer's Disease, Cognitive Function, Blood Pressure, Amyloid, Tau
UT Southwestern
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Metformin in Alzheimer's Dementia Prevention (MAP)

MAP will be a multisite phase II/III 1:1 randomized controlled trial (RCT) of long acting metformin (reduced mass Glucophage XR) vs. matching placebo in 326 men and women with early and late aMCI, without diabetes, not treated with metformin, overweight or obese, aged 55 years to 90 years. The RCT will last 18 months and have 4 visits: baseline, 6-months, 12-months, and 18-months. The RCT will be preceded by a screening phase followed by randomization and a titration period in which drug/placebo will be titrated from 500 mg a day (one tablet) to 2,000 mg a day (4 tablets), in increments of 500 mg (one tablet) every 10 days. Participants will remain in the RCT on the tolerated dose, and included in analyses on an intent to treat basis. We expect the attrition rate to be 10%/year. Neuropsychological battery, clinical interviews, physical exam, and phlebotomy will be conducted at baseline and every 6 months. Brain MRI will be conducted in approximately half of the participants (186) twice, at baseline, and after the last study visit at month 18. We will also conduct brain amyloid Positron Emission Tomography (PET) using 18F-Florbetaben, and tau PET using 18F-MK6240 in half of the participants at baseline and end of the RCT. The primary clinical outcome of the study will be changes in the Free and Cued Selective Reminding Test. The secondary clinical outcome will be changes in the Alzheimer's Disease Cooperative Study Preclinical Alzheimer's Cognitive Composite. Secondary subclinical outcomes will be changes in cortical thickness AD signature areas, changes in white matter hyperintensity volume, changes in brain amyloid burden, changes in brain tau burden, and changes in plasma biomarkers of amyloid, tau, and neurodegeneration. The data coordinating center and Imaging Core is located at John Hopkins University. The PET coordinating center is located at UC-Berkeley. The Clinical Coordinating and Monitoring Center and the central laboratory will be located at Columbia. The Research pharmacy function will be shared by the University of Rochester, which will dispense randomization kits, and the University of Iowa, which will receive bulk metformin and identical matching placebo from EMD Serono.

Call 214-648-5005
studyfinder@utsouthwestern.edu, Simosabo.Dube@UTSouthwestern.edu

Ihab Hajjar
215372
All
55 Years to 90 Years old
Phase 2/Phase 3
This study is also accepting healthy volunteers
NCT04098666
STU-2023-0240
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Inclusion Criteria:
Diagnosis of aMCI:
• Participants must have subjective memory concern reported by participant, study partner, or clinician.
• A mini-mental state exam between ≥ 22 for subjects with more than 8 years of education. For subjects with less than 8 years of education, a MMSE ≥ 20 will be allowed.
• Clinical Dementia Rating 0.5. The memory box score must be at least 0.5.
• General cognition and functional performance sufficiently preserved such that a diagnosis of Alzheimer's disease cannot be made by the site physician at the time of the screening visit.
• Abnormal memory function documented by scoring within the education adjusted ranges on the Logical Memory II subscale (Delayed Paragraph Recall, Paragraph A only) from the Wechsler Memory Scale-Revised.
• For early MCI:
• 9-11 for 16 or more years of education
• 5-9 for 8-15 years of education
• 3-6 for 0-7 years of education
• For late MCI
• ≤ 8 for 16 or more years of education
• ≤ 4 for 8-15 years of education
• ≤ 2 for 0-7 years of education
• Age range: 55 years to 90 years.
• Sex distribution: all eligible men and women will be included and no one will be excluded because of gender.
• Languages: fluent in English or Spanish. We have reliable, well-validated Spanish tests for all outcome measures.
• Participants without a known history of diabetes. If diabetes is diagnosed during screening (hemoglobin A1c of 6.5 % or greater) they will also be excluded. The main justification for this exclusion is the potential for these participants to be placed on other diabetes medications that may confound our study.
• General cognition and functional performance such that a diagnosis of dementia cannot be made at the time of screening based on DSM-V criteria.
• Vision and hearing must be sufficient for compliance with testing procedures.
• Must have an informant to come to all appointments or be available by telephone at follow-up visits. Study Partner Inclusion Criteria
• The study partner can provide an independent evaluation of functioning for a person enrolled in the MAP study as a participant
• The study partner agrees to attend study visits with the MAP participant or be available by telephone.
Exclusion Criteria:

• Use of metformin for any indication.
• Body mass index < 20 k/m2.
• Metformin is contraindicated in persons with an estimated glomerular filtration rate (eGFR) of less than 30 mL/min. For persons with an eGFR of 30 to 45 mL/min, a reduction of the dose or discontinuation of the medication is recommended for those on metformin; in this range, it is also recommended that persons do not initiate metformin. Thus, participants with eGFR < 45 mL/min will not be eligible to participate.
• The risk of lactic acidosis is increased in persons with liver disease and class III or IV congestive heart failure. Thus, persons with liver disease other than non-fatty liver disease (e.g., cirrhosis) or class III or IV congestive heart failure will not be eligible to participate due to the risks of side effects.
• A history of intolerance to metformin used for indications other than diabetes.
• History of cerebrovascular accident with residual neurological deficits.
• Moderate to severe depression, indicated by a score in the Geriatric Depression Scale of 9/15 or higher.
• Dementia diagnosis
• Lack of capacity to consent
• Participants with neurologic diseases associated with neurologic deficits on clinical examination.
• Participants with other current Axis I psychiatric diagnoses such as bipolar disorder or schizophrenia.
• Alcohol or substance abuse or dependence in the past 6 months.
• Use of medications rated as being the likely cause of cognitive impairment. These include benzodiazepines in dose equivalents greater than 2 mg daily of lorazepam, and regular use of prescription narcotics.
• Normal individuals without cognitive complaints.
• Participants with uncontrolled hypertension (systolic blood pressure ≥ 160 mmHg or diastolic blood pressure ≥ 95 mmHg).
• Participants with active cancer or a history of cancer within the last two years, with the exception of squamous or basal cell carcinoma of the skin.
• Participants who for any reason may not complete the study as judged by the study physician.
• Participants planning to move to another city or state within the next 24 months.
• Participants with a known history of diabetes. The rationale for this exclusion is persons with diabetes may already be on metformin or on other medications that increase insulin levels and could confound the trial.
• Participants with diabetes discovered on screening based on American Diabetes Association criteria using HbA1c (HbA1c of 6.5% or greater). Although metformin could be a first treatment of diabetes for these participants, addition of treatments for diabetes by physicians could confound the study.
• Use of aducanumab (Aduhelm™) of any other amyloid modifying treatment for AD.
• Not able to undergo phlebotomy as reported by the participant or determined by the study coordinator or physician.
• Participants with known, suspected, or plan for becoming pregnant. Exclusion Criteria for MRI Contraindications for MRI include inability to lie flat, claustrophobia, or presence of indwelling metal objects or implants that are not MRI compatible. Exclusion Criteria for PET History of adverse reactions to radiocontrast agents.
Drug: Placebo oral tablet, Drug: extended release metformin
Mild Cognitive Impairment, Brain and Nervous System
UT Southwestern
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ExAblate Blood-Brain Barrier (BBB) Disruption for the Treatment of Alzheimer's Disease

The purpose of this study is to evaluate the safety and efficacy of the ExAblate Model 4000 Type 2.0 System as a tool to disrupt the blood-brain barrier (BBB) in patients with probable Alzheimer's Disease (AD).

Call 214-648-5005
studyfinder@utsouthwestern.edu, Vida.Rhodes@UTSouthwestern.edu

Bhavya Shah
173107
All
50 Years to 85 Years old
N/A
This study is NOT accepting healthy volunteers
NCT03671889
STU-2020-0931
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Inclusion Criteria:

• Male or Female between 50-85 years of age
• Probable Alzheimer's Disease (AD)
• If taking concurrent Alzheimer's medication, has been on the medication for at least 2 months with a stable dose for at least 3 months
• Able to communicate sensations during the ExAblate MRgFUS procedure
• Ambulatory
Exclusion Criteria:

• MRI Findings
• Presence of unknown or MR unsafe devices anywhere in the body
• Significant cardiac disease or unstable hemodynamic status
• Relative contraindications to ultrasound contrast agent or PET amyloid tracer
• History of a bleeding disorder
• History of liver disease
• Known cerebral or systemic vasculopathy
• Significant depression and at potential risk of suicide
• Any contraindications to MRI scanning
• Any contraindication to lumbar puncture for collection of cerebral spinal fluid
• Untreated, uncontrolled sleep apnea
• History of seizure disorder or epilepsy
• Severely Impaired renal function
• Currently in a clinical trial involving an investigational product or non-approved use of a drug or device or in any other type of medical research
• Chronic pulmonary disorders
• Positive human immunodeficiency virus (HIV)
• Known apolipoprotein E allele (ApoE4) homozygosity
Device: Blood Brain Barrier (BBB) Disruption
Alzheimer Disease, Brain and Nervous System
Alzheimer Disease, Alzheimer Syndrome, Magnetic Resonance guided Focal Ultrasound (MRgFUS), Blood-Brain Barrier, ExAblate
UT Southwestern
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AHEAD 3-45 Study: A Study to Evaluate Efficacy and Safety of Treatment With Lecanemab in Participants With Preclinical Alzheimer's Disease and Elevated Amyloid and Also in Participants With Early Preclinical Alzheimer's Disease and Intermediate Amyloid

The primary purpose of this study is to determine whether treatment with lecanemab is superior to placebo on change from baseline of the Preclinical Alzheimer Cognitive Composite 5 (PACC5) at 216 weeks of treatment (A45 Trial) and to determine whether treatment with lecanemab is superior to placebo in reducing brain amyloid accumulation as measured by amyloid positron emission tomography (PET) at 216 weeks of treatment (A3 Trial).

Call 214-648-5005
studyfinder@utsouthwestern.edu, MARIBEL.NUNEZ@UTSouthwestern.edu

Brendan Kelley
173025
All
55 Years to 80 Years old
Phase 3
This study is NOT accepting healthy volunteers
NCT04468659
STU-2020-0348
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Inclusion criteria: Participants must meet all of the following criteria to be included in this study:
• Male or female, age 55 to 80 years inclusive at the time of informed consent • Those 55 to 64 must have 1 of the following additional risk factors, given the relatively low rates of amyloid positivity less than (<) 65 years:
• First degree relative diagnosed with dementia onset before age 75, or
• Known to possess at least 1 apolipoprotein E4 variant (APOE4) allele, or
• Known before screening to have elevated brain amyloid according to previous PET or cerebrospinal fluid (CSF) testing. Individuals with historical amyloid PET scans with intermediate brain amyloid (example, from preclinical Alzheimer's disease (AD) studies such as A4 or EARLY) are eligible to be screened, provided the participant did not participate in any clinical studies involving anti-amyloid therapies subsequent to the PET assessment
• Global Clinical Dementia Rating (CDR) score of 0 at screening
• Mini Mental State Examination score greater than or equal to (>=) 27 (with educational adjustments) at screening
• Wechsler Memory Scale-Revised Logical Memory subscale II (WMS-R LM II) score at screening of >=6
• A45 Trial: Elevated brain amyloid pathology by amyloid PET: defined as approximately greater than (>) 40 Centiloids on screening scan A3 Trial: Intermediate levels of brain amyloid pathology by amyloid PET: defined as approximately 20 to 40 Centiloids on screening scan
• Has a study partner that is willing to participate as a source of information and has approximately weekly contact with the participant (contact can be in-person, via telephone or electronic communication). The study partner must have sufficient contact such that the investigator feels the study partner can provide meaningful information about the participant's daily function
• Provide written (or electronic, if allowed per country-specific regulations) informed consent
• Willing and able to comply with all aspects of the protocol Exclusion criteria: Participants who meet any of the following criteria will be excluded from this study:
• Females who are breastfeeding or pregnant at screening or baseline
• Females of childbearing potential who: • Within 28 days before study entry, did not use a highly effective method of contraception For sites outside of the European union (EU), it is permissible that if a highly effective method of contraception is not appropriate or acceptable to the participant, then the participant must agree to use a medically acceptable method of contraception
• History of transient ischemic attacks (TIA), stroke, or seizures within 12 months of screening
• Current or history within the past 2 years of psychiatric diagnosis or symptoms that, in the opinion of the investigator, could interfere with study procedures
• Contraindications to 3 Tesla magnetic resonance imaging (MRI) scanning, including cardiac pacemaker/defibrillator, ferromagnetic metal implants (example, in-skull and cardiac devices other than those approved as safe for use in MRI scanners), or exhibit other significant pathological findings on brain MRI at Screening
• Hypersensitivity to any monoclonal antibody treatment
• Any immunological disease which is not adequately controlled, or which requires treatment with immunoglobulins, systemic monoclonal antibodies (or derivatives of monoclonal antibodies), systemic immunosuppressants, or plasmapheresis during the study
• Bleeding disorder that is not under adequate control (including a platelet count <50,000 or international normalized ratio [INR] >1.5) at screening
• Results of laboratory tests conducted during screening that are outside the following limits:
• Thyroid stimulating hormone (TSH) above normal range
• Abnormally low (below lower limit of normal [LLN]) serum vitamin B12 levels for the testing laboratory (if participant is taking vitamin B12 injections, level should be at or above the LLN for the testing laboratory). A low vitamin B12 is exclusionary, unless the required follow-up labs (homocysteine and methylmalonic acid [MMA]) indicate that it is not physiologically significant
• Known to be human immunodeficiency virus (HIV) positive
• Any other clinically significant abnormalities that in the opinion of the investigator require further investigation or treatment or may interfere with study procedures or safety
• Malignant neoplasms within 3 years of screening (except for basal or squamous cell carcinoma in situ of the skin, or localized prostate cancer in male participants with treatment cycles completed at least 6 months before screening). Participants who had malignant neoplasms but who have had at least 3 years of documented uninterrupted remission before screening need not be excluded
• Answer "yes" to Columbia-Suicide Severity Rating Scale (C-SSRS) suicidal ideation Type 4 or 5, or any suicidal behavior assessment within 6 months before screening, at screening, or at baseline, or has been hospitalized or treated for suicidal behavior in the past 5 years before screening
• Known or suspected history of drug or alcohol abuse or dependence within 2 years before screening or a positive urine drug test at screening. Participants who test positive for benzodiazepines, opioids, or tetrahydrocannabinol (THC) in urine drug testing need not be excluded unless in the clinical opinion of the investigator this is due to potential drug abuse
• Taking prohibited medications
• Participation in a clinical study involving:
• Any anti-amyloid immunotherapy (example, therapeutic monoclonal antibody or active anti-amyloid vaccine) at any time, unless it can be documented that the participant was randomized to placebo or never received study drug
• Any immunoglobulin therapy, or vaccine within 6 months before Screening, unless it can be documented that the participant was randomized to placebo or never received study drug
• Lecanemab
• Any new chemical entities or investigational drug for AD within 6 months before screening unless it can be documented that the participant received only placebo
• Any other investigational medication or device study in the 8 weeks or 5 half-lives (whichever is longer) of the medication before randomization unless it can be documented that the participant was in a placebo treatment arm
• Planned surgery during the prerandomization phase or within 3 months of randomization, which requires general anesthesia
Drug: Lecanemab, Drug: Placebo
Preclinical Alzheimer's Disease, Brain and Nervous System, Early Preclinical Alzheimer's Disease
BAN2401, Preclinical Alzheimer's disease, Elevated amyloid, Early preclinical Alzheimer's disease, Intermediate amyloid, A45 Trial, A3 Trial, AHEAD 3-45, Lecanemab
UT Southwestern
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Late Onset Alzheimer's Disease (LOAD)

The goal of this study is to is to focus on the genetic influences on Alzheimer's Disease (AD) risk. The investigators are looking for families and/or individuals (affected or unaffected) of any ethic background (African American, Caucasian, and Hispanics) with a family history of AD and willing to participate.

Call 214-648-5005
studyfinder@utsouthwestern.edu, Meghan.Leak@UTSouthwestern.edu

Ihab Hajjar
215372
All
55 Years and over
This study is also accepting healthy volunteers
NCT05010603
STU 082012-046
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Inclusion Criteria:

• Established diagnosis of definite or probable AD or have a diagnosis of a related neurodegenerative disorder such as Frontotemporal Dementia (FTD) or Lewy Body Dementia (LBD) (will also recruit sporadic FTD and LBD) cases.
• a living sibling with probable or possible AD;
• a third living relative affected with AD (onset age 50 or older) or unaffected (60 or older);
• participants in the proband's generation with an identified companion serving as an informant;
• participants who have capacity to consent or participants lacking capacity to consent with a surrogate/proxy in place to provide consent.
Exclusion Criteria:

• failure to identify an appropriate informant;
• uncertainty of the clinical diagnosis of Alzheimer's disease or other related disorder;
• discovery of additional diagnosis that could account for the clinical manifestations;
• unwillingness to participate;
• failure to identify a living sibling with AD or other related disorder (except in the cases of sporadic FTD and sporadic LBD);
• participants lacking the capacity to consent who do not have a surrogate or proxy or next of kin to provide consent.
Genetic: Blood Draw, Other: Late Onset Alzheimer's Disease (LOAD) Neuropsychological Battery Test
Alzheimer Disease
Genetic testing, Genetic influence
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