E.1 Medical condition or disease under investigation |
E.1.1 | Medical condition(s) being investigated |
Mild cognitive impairment |
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E.1.1.1 | Medical condition in easily understood language |
Mild cognitive impairment |
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E.1.1.2 | Therapeutic area | Diseases [C] - Nervous System Diseases [C10] |
MedDRA Classification |
E.1.3 | Condition being studied is a rare disease | No |
E.2 Objective of the trial |
E.2.1 | Main objective of the trial |
We will test the predictive value of baseline flutemetamol capture for longitudinal change in amyloid load measured using PET in MCI cases.
Second, we will compare CSF Aβ42 and amyloid PET for classification of amyloid-positive and amyloid negative cases. Third, we will compare the predictive value of CSF AD biomarkers Aβ42, T-tau and P-tau181P with that of amyloid imaging for MCI cases that progress to Alzheimer's disease. |
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E.2.2 | Secondary objectives of the trial |
Our secondary objectives include the evaluation of whether a change in amyloid deposition (measured by CSF Aβ42 or SUVR) over a 1 year period predicts cognitive decline over a 2 year time period and whether both measures contribute independently to this decline.
Further, we will analyze the predictive value of classical AD biomarkers changes after one year on the progression of cognitive change after 2 years. We will also explore the correlation of baseline exploratory candidate biomarkers. |
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E.2.3 | Trial contains a sub-study | No |
E.3 | Principal inclusion criteria |
1. Patient is male or female and between ≥ 55 and ≤ 85 years of age on the day of signing the consent form.
2. If female, patient is not of reproductive potential (two years post-menopausal or surgically sterile).
4. Patient has a subjective memory concern as reported by subject, study partner, or clinician.
5. Patient has an abnormal memory function documented by scoring within the
education adjusted ranges on the CANTAB memory performance (≥ -1SD).
6. Patient has a Global Clinical Dementia Rating score of 0 or 0.5.
7. In the opinion of the investigator, the patient is in stable medical condition and willing and able to perform study procedures in the opinion of the investigator.
8. Patient has at least six years of education, or work history sufficient, in the investigator’s opinion, to exclude mental retardation.
9. Patient is fluent in written and verbal Dutch.
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E.4 | Principal exclusion criteria |
1. Patient has a history or current evidence of a neurological disorder, that in the opinion of the primary investigator may contribute to the subject's cognitive impairment, including, but not limited to:
● Large-vessel stroke,
● epilepsy,
● Parkinson’s disease,
● progressive supranuclear palsy,
● Huntington’s disease,
● amyotrophic lateral sclerosis,
● multiple sclerosis,
● CNS infection,
● significant head trauma with loss of consciousness,
● Normal pressure hydrocephalus
2. Patient has a history of large-vessel stroke or evidence of a large-vessel infarction or other focal lesions on baseline MRI scan that may contribute to the cause of the memory impairment in the opinion of the investigator. Vascular white matter lesions or other signs of microangiopathy will not be considered an exclusion.
3. Patient has a history within 6 months prior to screening visit or current evidence of a psychotic disorder or a major untreated depressive disorder.
4. Patient has a history of malignancy ≤5 years prior to signing informed consent, except for patients who have undergone potentially curative therapy with no evidence of recurrence for 1 year, and who are deemed at low risk for recurrence by her/his treating physician.
5. Patient has a history or current evidence of any potentially known clinically significant condition , therapy, lab abnormality or other circumstance that in the opinion of the investigator might confound the results of the study, or interfere with the patient’s participation for the full duration of the study, such that it is not in the best interest of the patient to participate.
6. Patients currently use specific psychoactive medications (neuroleptics, chronic anxiolytics, tricyclic antidepressants, antiepileptics, anticholinergics etc.). Stable dose trazodone, mirtazapine or low dose benzodiazepines prescribed for mild insomnia is allowed.
7. Patients currently use antithrombotics with the exception of acetyl salicylic acid (exclusionary for lumbar puncture).
8. Cholinesterase inhibitors are allowable if stable for 12 weeks prior to screen.
9. History of alcohol or substance abuse or dependence within the past 2 years (DSM IV
criteria)
10. Patient is currently participating or has participated in a study with an investigational compound or neuropsychological measures within 30 days of signing informed consent.
11. Subject has any magnetizable metal prostheses, implants or foreign objects that could pose a hazard during MRI scans.
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E.5 End points |
E.5.1 | Primary end point(s) |
Since this study is not interventional, no end points are defined. |
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E.5.1.1 | Timepoint(s) of evaluation of this end point |
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E.5.2 | Secondary end point(s) |
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E.5.2.1 | Timepoint(s) of evaluation of this end point |
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E.6 and E.7 Scope of the trial |
E.6 | Scope of the trial |
E.6.1 | Diagnosis | Yes |
E.6.2 | Prophylaxis | No |
E.6.3 | Therapy | No |
E.6.4 | Safety | No |
E.6.5 | Efficacy | No |
E.6.6 | Pharmacokinetic | No |
E.6.7 | Pharmacodynamic | No |
E.6.8 | Bioequivalence | No |
E.6.9 | Dose response | No |
E.6.10 | Pharmacogenetic | No |
E.6.11 | Pharmacogenomic | No |
E.6.12 | Pharmacoeconomic | No |
E.6.13 | Others | No |
E.7 | Trial type and phase |
E.7.1 | Human pharmacology (Phase I) | No |
E.7.1.1 | First administration to humans | No |
E.7.1.2 | Bioequivalence study | No |
E.7.1.3 | Other | No |
E.7.1.3.1 | Other trial type description | |
E.7.2 | Therapeutic exploratory (Phase II) | No |
E.7.3 | Therapeutic confirmatory (Phase III) | No |
E.7.4 | Therapeutic use (Phase IV) | Yes |
E.8 Design of the trial |
E.8.1 | Controlled | No |
E.8.1.1 | Randomised | No |
E.8.1.2 | Open | Yes |
E.8.1.3 | Single blind | No |
E.8.1.4 | Double blind | No |
E.8.1.5 | Parallel group | No |
E.8.1.6 | Cross over | No |
E.8.1.7 | Other | No |
E.8.2 | Comparator of controlled trial |
E.8.2.1 | Other medicinal product(s) | No |
E.8.2.2 | Placebo | No |
E.8.2.3 | Other | No |
E.8.3 |
The trial involves single site in the Member State concerned
| Yes |
E.8.4 | The trial involves multiple sites in the Member State concerned | No |
E.8.5 | The trial involves multiple Member States | No |
E.8.6 Trial involving sites outside the EEA |
E.8.6.1 | Trial being conducted both within and outside the EEA | No |
E.8.6.2 | Trial being conducted completely outside of the EEA | No |
E.8.7 | Trial has a data monitoring committee | No |
E.8.8 |
Definition of the end of the trial and justification where it is not the last
visit of the last subject undergoing the trial
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E.8.9 Initial estimate of the duration of the trial |
E.8.9.1 | In the Member State concerned years | 3 |
E.8.9.1 | In the Member State concerned months | 6 |
E.8.9.1 | In the Member State concerned days | |