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A Study to Evaluate the Safety and Efficacy of CT1812 in Early Alzheimer's Disease
This is a multicenter randomized, double-blind, placebo-controlled Phase 2 study designed to evaluate the efficacy, safety, and tolerability of two doses of CT1812 compared to placebo in participants diagnosed with early Alzheimer's disease.
Call 214-648-5005
studyfinder@utsouthwestern.edu, Matthew.Jones@UTSouthwestern.edu
Brendan Kelley
ALL
50 Years to 85 Years old
PHASE2
NCT05531656
STU-2024-0467
Inclusion Criteria:
• Ages 50-85 years.
• Diagnosis of either MCI due to AD or mild AD dementia.
• MMSE 20-30 (inclusive).
• Amyloid PET scan of the brain or CSF biomarkers consistent with AD.
• Neuroimaging (MRI) obtained during screening consistent with the clinical diagnosis of Alzheimer's disease, as based on central read.
Exclusion Criteria:
• Screening MRI of the brain indicative of significant abnormality.
• Clinically significant abnormalities in screening laboratory tests.
• Clinical or laboratory findings consistent with:
• Other primary degenerative dementia, (dementia with Lewy bodies, fronto-temporal dementia, Huntington's disease, Creutzfeldt-Jakob Disease, Down syndrome, etc.).
• Other neurodegenerative condition (Parkinson's disease, amyotrophic lateral sclerosis, etc.).
• Other infectious, metabolic or systemic diseases affecting the central nervous system (syphilis, present hypothyroidism, present vitamin B12, other laboratory values etc.)
• A participant known to be actively infected with hepatitis B or hepatitis C at screening. History of acute/chronic hepatitis B or C and/or carriers of hepatitis B (seropositive for hepatitis B surface antigen \[HbsAg\] or anti-hepatitis C \[HCV\] antibody). Participants who have evidence of resolved hepatitis infection (e.g., HCV RNA negative) may be considered following discussion with the Medical Monitor.
• A current DSM-V diagnosis of active major depression or GDS \> 6, schizophrenia, or bipolar disorder.
DRUG: CT1812, DRUG: Placebo
Early Alzheimer's Disease, Brain and Nervous System
Alzheimer's Disease
UT Southwestern
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, Margaret.Mcgregor@UTSouthwestern.edu
Rong Zhang
ALL
60 Years to 85 Years old
PHASE2
NCT05331144
STU-2021-1210
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
Cognitively Normal Older Adults, Hypertension, Subjective Cognitive Decline, Family History of Dementia, Brain and Nervous System
Dementia, Alzheimer's Disease, Cognitive Function, Blood Pressure, Amyloid, Tau
UT Southwestern
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, Charlton.Starcke@UTSouthwestern.edu
Bhavya Shah
ALL
50 Years to 85 Years old
NA
NCT03671889
STU-2020-0931
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