- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT02361424
Pilot Study Assessing the Effects of PXT00864 in Patients With Mild Alzheimer Disease (AD) (PLEODIAL-I)
First Single-blind Sequential Placebo-controlled Prospective Phase IIA Pilot Study Assessing the Effects of PXT00864 in Mild AD Patients
Study Overview
Study Type
Enrollment (Actual)
Phase
- Phase 2
Contacts and Locations
Study Locations
-
-
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Bordeaux, France
- CMRR
-
-
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
- Male or female patients aged ≥ 60 years.
- Patient with a diagnosis of probable AD
- Progressive decline in cognition for more than six months which story is documented in patient medical records
- A Mini-Mental State Examination (MMSE) score of 20-26
- With a minimum of educational background
- Naïve to anti-dementia treatment
- MRI assessment which corroborates the clinical diagnosis (hippocampal atrophy) and excludes other potential causes of dementia especially cerebrovascular lesions
- If available, Cerebral Spinal Fluid (CSF) classical biomarkers should be at levels which corroborate the clinical diagnosis
- Ambulatory patient living at home with a caregiver available and living in the same household or interacting with the patient daily and available if necessary to ensure administration of the investigational product
- Absence of major or severe depressive disease
- Patient with a willingness to participate in this study and who have signed an informed consent form
Exclusion Criteria:
- Early onset of dementia, i.e. before 60 years old to avoid hereditary AD forms
- Significant neurological disease other than AD
- Major psychiatric disorder or syndrome (schizophrenia or bipolar disorder)
- Seizure disorders
- Other infectious, metabolic or systemic diseases affecting central nervous system
- Other active clinically significant illness
- Hospitalization or change of chronic concomitant medications one month prior to screening
- Patients with severe respiratory, hepatic or renal failure or with any other significantly potentially disabling abnormality detected during screening
- Known hypersensitivity to the tested treatment including active substance and excipients.
- Patients participating in another study and exposed to any investigational therapy within the 30 days prior to the entry in this study.
- Patient without medical care insurance
Study Plan
How is the study designed?
Design Details
- Primary Purpose: TREATMENT
- Allocation: NON_RANDOMIZED
- Interventional Model: CROSSOVER
- Masking: TRIPLE
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
EXPERIMENTAL: PXT00864 Dose 1
1 orange capsule containing 0.4 mg of acamprosate , and 1 white capsule containing 6 mg of baclofen These 2 capsules are taken orally b.i.d.
during 8 weeks.
|
PXT00864 is a fixed-dose combination of baclofen and acamprosate
|
EXPERIMENTAL: PXT00864 Dose 2
1 orange capsule containing 1 mg of acamprosate , and 1 white capsule containing 15 mg of baclofen . These 2 capsules are taken orally b.i.d. during 8 weeks. |
PXT00864 is a fixed-dose combination of baclofen and acamprosate
|
EXPERIMENTAL: PXT00864 Dose 3
1 orange capsule containing 20 mg of acamprosate , and 1 white capsule containing 12 mg of baclofen . These 2 capsules are taken orally b.i.d. during 8 weeks. |
PXT00864 is a fixed-dose combination of baclofen and acamprosate
|
PLACEBO_COMPARATOR: Placebo of PXT00864
1 orange capsule containing placebo of acamprosate , and 1 white capsule containing placebo of baclofen . These 2 capsules are taken orally b.i.d. during 4 weeks |
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Change From Baseline in the total score of the 11-item Alzheimer´s Disease Assessment Scale- Cognitive Subscale (ADAS-Cog)
Time Frame: Visit V0 (train), V1 (baseline), and every 4 weeks (visits V2, V3 and V4)
|
Scores on the ADAS-Cog range from 0-70 with higher scores indicating greater cognitive impairment.
|
Visit V0 (train), V1 (baseline), and every 4 weeks (visits V2, V3 and V4)
|
Number of Treatment Emergent Adverse Events (TEAEs)
Time Frame: throughout the 12-week study period.
|
throughout the 12-week study period.
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Change From Baseline in the score of the Digit Symbol Substitution Test (DSST)
Time Frame: Visit V0 (train), V1 (baseline), and every 4 weeks (visits V2, V3 and V4)
|
Scores on the DSST range from 0-93 with lower scores indicating greater impairment.
|
Visit V0 (train), V1 (baseline), and every 4 weeks (visits V2, V3 and V4)
|
Change From Baseline in the speed to perform the Zazzo's Cancellation Test
Time Frame: Visit V0 (train), V1 (baseline), and every 4 weeks (visits V2, V3 and V4)
|
Visit V0 (train), V1 (baseline), and every 4 weeks (visits V2, V3 and V4)
|
|
Change From Baseline in the score of the Zazzo's Cancellation Test
Time Frame: Visit V0 (train), V1 (baseline), and every 4 weeks (visits V2, V3 and V4)
|
Visit V0 (train), V1 (baseline), and every 4 weeks (visits V2, V3 and V4)
|
|
Change From Baseline in the score of the 15-second Isaacs Set Test
Time Frame: Visit V0 (train), V1 (baseline), and every 4 weeks (visits V2, V3 and V4)
|
Visit V0 (train), V1 (baseline), and every 4 weeks (visits V2, V3 and V4)
|
|
Change From Baseline in the time score of the Trail Making Test - part A
Time Frame: Visit V0 (train), V1 (baseline), and every 4 weeks (visits V2, V3 and V4)
|
Visit V0 (train), V1 (baseline), and every 4 weeks (visits V2, V3 and V4)
|
|
Change From Baseline in the time score of the Trail Making Test - part B
Time Frame: Visit V0 (train), V1 (baseline), and every 4 weeks (visits V2, V3 and V4)
|
Visit V0 (train), V1 (baseline), and every 4 weeks (visits V2, V3 and V4)
|
|
Change From Baseline in the score of the Free and Cued Selective Reminding Test (FCSRT)
Time Frame: 1 (baseline) and V4 (end of study, after 12 weeks of treatment)
|
FCSRT is a memory test administered according to the procedure described by Gröber and Buschke modified with 16 verbal items.
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1 (baseline) and V4 (end of study, after 12 weeks of treatment)
|
Change From Baseline in the score of the 4-item Instrumental Activities of Daily Living scale (IADL-PAQUID)
Time Frame: V0 (train), V1 (baseline), and every 4 weeks (V2, V3 and V4)
|
The 4-item Instrumental Activities of Daily Living scale (IADL) concerns four routine daily functions (using transportation, managing finances, using the phone and managing medicines use).
Scores on the IADL range from 4-15 with higher scores indicating greater impairment.
|
V0 (train), V1 (baseline), and every 4 weeks (V2, V3 and V4)
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Change From Baseline in the score of the Clinical Dementia Rating (CDR) scale
Time Frame: 1 (baseline) and V4 (end of study, after 12 weeks of treatment)
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The Sum of Boxes score of the CDR ranges from 0 to 18, with higher scores indicating greater impairment.
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1 (baseline) and V4 (end of study, after 12 weeks of treatment)
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Change From Baseline in the score of the Apathy Inventory (AI) scale
Time Frame: 1 (baseline) and V4 (end of study, after 12 weeks of treatment)
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Scores on the AI range from 0-12 with higher scores indicating greater impairment.
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1 (baseline) and V4 (end of study, after 12 weeks of treatment)
|
Other Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Change From Baseline in the cognitive Event Related Potential parameters (optional)
Time Frame: V1 (baseline), and every 4 weeks (V2, V3 and V4)
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Some cognitive Event Related Potentials (ERP) with auditory oddball paradigm are performed as an ancillary study.
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V1 (baseline), and every 4 weeks (V2, V3 and V4)
|
Collaborators and Investigators
Sponsor
Collaborators
Study record dates
Study Major Dates
Study Start
Primary Completion (ACTUAL)
Study Completion (ACTUAL)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (ESTIMATE)
Study Record Updates
Last Update Posted (ESTIMATE)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- CLN-PXT00864-03
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