Mild Cognitive Impairment Clinical Trial
— ATX-001Official title:
A 6 Month, Phase II Randomized, Double-Blind, Placebo Controlled, Flexible Dosing, Crossover Trial of Atomoxetine in Subjects With Mild Cognitive Impairment.
Verified date | July 2019 |
Source | Emory University |
Contact | n/a |
Is FDA regulated | No |
Health authority | |
Study type | Interventional |
The purpose of this study is to evaluate the safety of atomoxetine and its effect primarily on the biologic markers (substances that may indicate the presence of a disease) in the cerebrospinal fluid (CSF) of participants diagnosed with Mild Cognitive Impairment (MCI). Additionally, information will be gathered to identify the dose of atomoxetine that is most beneficial, and how taking this medication affects thinking and behavior, as well as imaging and blood biomarkers.The study will also explore rates of change in biomarkers of neurodegeneration (Aß, tau, brain atrophy rates). The results of this research will help determine if atomoxetine alters signs of inflammation and other biomarkers associated with Alzheimer's disease.
Status | Completed |
Enrollment | 39 |
Est. completion date | June 30, 2018 |
Est. primary completion date | October 31, 2017 |
Accepts healthy volunteers | No |
Gender | All |
Age group | 50 Years to 90 Years |
Eligibility |
Inclusion - Subjects must have a subjective memory concern as reported by subject, study partner or clinician. - Meets Alzheimer's Disease Neuroimaging Initiative (ADNI) criteria for diagnosis of MCI. Subjects with amnestic (single or multi-domain) will be eligible, as both subtypes of MCI are at high risk for progression to AD. - Abnormal memory function documented by assessment using the Logical Memory subscale (Delayed Paragraph Recall, Paragraph A only) from the Wechsler Memory Scale-Revised (the maximum score is 25): - <11 for 16 or more years of education - <9 for 8-15 years of education - <6 for <7 years of education - Mini-Mental State Exam score between 24 and 30 (inclusive). Exceptions may be made for subjects with less than 8 years of education at the discretion of the PI. - Clinical Dementia Rating = 0.5. Memory Box score must be at least 0.5. - General cognition and functional performance sufficiently preserved such that a diagnosis of AD cannot be made by the physician at the time of the screening visit. - Cholinesterase inhibitors and memantine are allowable if stable for 12 weeks prior to screen. - Stability of Permitted Medications for 4 weeks. In particular, subjects may washout from excluded medication for at least 4 weeks prior to screening. - Geriatric Depression Scale (GDS) = than 6. - Male or female outpatients aged 50-90 (inclusive). - Study partner has regular contact with the subject adequate to provide a reliable assessment of the subject's level of function, and can be available for all clinic visits, either in person or by telephone, for the duration of the study. - Visual and auditory acuity adequate for neuropsychological testing. - Good general health with no diseases expected to interfere with the study. - For women of child-bearing potential (i.e., one who is biologically capable of becoming pregnant), must be willing to use a medically acceptable form or birth control or practice abstinence for the duration of her participation in the trial. Acceptable methods of birth control include: oral or patch contraception, or medroxyprogesterone (Depo-Provera®) or other intramuscular contraceptive injection, or implantation of levonorgestrel (Norplant®) system, an Intrauterine Device (IUD), a reliably-employed barrier method (e.g. diaphragm, cervical cap or condom), or a male partner who is surgically sterilized. - Modified Rosen Hachinski = 4. - Completed six grades of education or has a good work history (sufficient to exclude mental retardation). - Able to communicate in English with study personnel. - Able to understand the nature of the study and must provide written informed consent prior to conduct of any study procedures. - Willing to undergo repeated MRIs (3Tesla) and at least three Positron-Emission Tomography (PET) scans. No medical contraindications to MRI. - Agrees to blood collection for Apolipoprotein (APOE) epsilon, CYP2D6 and biomarker testing. - Agrees to lumbar puncture over the course of the study for the collection of CSF. CSF levels of Ab42, total Tau, and Tau phosphorylated at threonine 181 consistent with underlying AD pathology according to established threshold values at Emory and the ADNI Biomarker Core Exclusion - Any significant neurologic disease other than MCI and suspected incipient AD, such as Parkinson's disease, multi-infarct dementia, Huntington's disease, normal pressure hydrocephalus, brain tumor, progressive supranuclear palsy, poorly controlled seizure disorder, subdural hematoma, multiple sclerosis, or history of significant head trauma followed by persistent neurologic deficits or known structural brain abnormalities. - Screening/baseline MRI scan with evidence of infection, large vessel infarction or other focal structural lesions that could account for the memory deficits. Subjects with multiple lacunes or lacunes in a critical memory structure are excluded. - Contraindication to MRI due to presence of pacemakers, aneurysm clips, artificial heart valves, ear implants, metal fragments or foreign objects in the eyes, skin or body, or excessive weight. - Presence of clinically significant suicide risk, based on the Investigator's judgment informed by a structured clinician interview. Any suicide attempt within the past 1 year of the screening visit is exclusionary. - Major depression, bipolar disorder as described in DSM-IV within the past 1 year, or history of schizophrenia (DSM-IV). Psychotic features, agitation or behavioral problems within the last 3 months which could lead to difficulty complying with the protocol. - History of alcohol or substance abuse or dependence within the past 2 years (DSM-IV criteria). - Allergic to any component of atomoxetine (Strattera). - Any uncontrolled medical condition that is expected to preclude completion of the study, or any medical condition which would represent a contraindication to atomoxetine pharmacotherapy (e.g. hepatic insufficiency, untreated hypertension, untreated cardiovascular or cerebrovascular disease). - Known serious structural cardiac abnormalities, cardiomyopathy, serious heart rhythm abnormalities, or other serious cardiac problems. - History of narrow angle glaucoma. - History of pheochromocytoma. - Clinically significant abnormal findings on screening laboratory tests or physical exam. Abnormalities in Vitamin B12 level, Thyroid Function Tests (TFTs) or Liver Function Tests (LFTs) that might interfere with the study. A low Vitamin B12 level is exclusionary, unless follow-up labs (homocysteine and methylmalonic acid indicate that it is not physiologically significant. - Slow metabolizer of atomoxetine (i.e., CYP2D6 polymorphism). - Women who are pregnant or lactating, or who plan to become pregnant during the study. - Current use of warfarin (exclusionary for lumbar puncture). - Inability to obtain initial CSF sample. - Use within 60 days of a monoamine oxidase inhibitor or a potent CYP2D6 inhibitor. - Current use of anti-psychotic medication. - Current use of the following anti-depressant medications that act on NET: duloxetine, venlafaxine, desvenlafaxine, imipramine, or amitryptiline. - Current participation in another clinical trial. Participation in clinical studies involving neuropsychological measures being collected more than one time per year. - CSF profile is not consistent with underlying Alzheimer's Disease pathology. - Reasonable likelihood for non-compliance with the protocol or any other reason, in the opinion of the investigator, prohibits enrollment of subject into the study. - Exceptions to these guidelines may be considered on a case-by-case basis at the discretion of the protocol director. |
Country | Name | City | State |
---|---|---|---|
United States | Emory University School of Medicine | Atlanta | Georgia |
Lead Sponsor | Collaborator |
---|---|
Emory University | National Institute on Aging (NIA) |
United States,
Type | Measure | Description | Time frame | Safety issue |
---|---|---|---|---|
Primary | Change in Interleukin 1 (IL 1-alpha) in Cerebrospinal Fluid (CSF) in Subjects With Mild Cognitive Impairment (MCI) Treated With Atomoxetine/Inactive Compound Compared to Subjects Treated With Inactive Compound / Atomoxetine | This study will examine the effects of Atomoxetine and Inactive compound on biomarkers of inflammation by measuring and comparing the levels of Interleukin 1 (IL 1-alpha) using the assay of CSF at Baseline, Week 29 and Week 58 among the two groups. The study hypothesizes that the period that participants are treated with atomoxetine will have reductions in levels of these pro-inflammatory biomarkers among the two groups. | Baseline, Week 29 and Week 58 | |
Primary | Change in Mean Level of Thymus-Expressed Chemokine (TECK) in Cerebrospinal Fluid (CSF) in Participants With Mild Cognitive Impairment (MCI) Treated With Atomoxetine / Inactive Compound Compared to Participants Treated With Inactive Compound / Atomoxetine | This study will examine the effect of Atomoxetine and Inactive Compound on biomarkers of inflammation by measuring and comparing the mean levels of Thymus-Expressed Chemokine (TECK). These levels are measured using the assay of CSF at Baseline, Week 29 and Week 58. The study hypothesizes that the period that participants are treated with atomoxetine will have reduction in levels of these markers among both groups. | Baseline, Week 29 and Week 58 | |
Primary | Number of All Adverse Events Among the Participants With Mild Cognitive Impairment (MCI) Treated With Atomoxetine Compared to the Participants Treated With Placebo/Inactive Compound | Safety was assessed by number of all adverse events among the participants treated with Atomoxetine compared to the participants treated with Placebo throughout the study. The Adverse Event assessment was done at each study visit through their participation in the study. | Up to Week 58 | |
Primary | Number of Participants That Drop Out of the Study Among the Participants Treated With Atomoxetine When Compared to the Participants Treated With Inactive Compound (Placebo) | Tolerability is measured by comparing the drop out rate among the participants treated with Atomoxetine to the participants treated with inactive compound (Placebo). Study predicts that treatment-associated (Atomoxetine Group) drop out rate will be < 15% . | Up to Week 58 | |
Secondary | Rate of Cerebral Blood Flow in Subjects With Mild Cognitive Impairment MCI Treated With Atomoxetine / Inactive Compound Compared to Participants Treated With Inactive Compound / Atomoxetine | Change in rate of cerebral blood flow is assessed by arterial spin labeling Magnetic Resonance Imaging (ASL-MRI) in subjects with Mild Cognitive Impairment MCI treated with Atomoxetine / Inactive Compound compared to participants treated with Inactive compound / Atomoxetine. The rates from the Baseline are compared to week 29 and week 58 among the participants treated with Atomoxetine / Inactive Compound compared to participants treated with Inactive compound / Atomoxetine. All MRIs will be reviewed by the investigators and the investigator. | Baseline, Week 29, Week 58 | |
Secondary | Change in FluoroDeoxyGlucose (FDG) Uptake in Participants With Mild Cognitive Impairment (MCI) Treated With Atomoxetine / Inactive Compound Compared to Participants Treated With Inactive Compound / Atomoxetine | Cerebral metabolic rate for glucose as measured by Fluoro Deoxy Glucose (FDG) uptake will be obtained by Positron Emission Tomography (PET) scan. The rates from the Baseline are compared to week 29 and week 58 among the subjects treated with Atomoxetine / Inactive Compound Compared to Participants Treated With Inactive Compound / Atomoxetine. . Cerebral glucose metabolism is reduced in early stages of AD. The ratio of hippocampal FDG-PET uptake to the whole brain average are presented below. | Baseline, Week 29 and Week 58 |
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