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A randomised, placebo-controlled, single-blind study to characterise the biomarker effects of the CSF-1 receptor antagonist JNJ-40346527 in participants with mild cognitive impairment.

A randomised, placebo-controlled, single-blind study to characterise the biomarker effects of the CSF-1 receptor antagonist JNJ-40346527 in participants with mild cognitive impairment - MIcroglial CSF1R in AD - MICAD

Status
Not yet recruiting
Phases
Phase 1Phase 2
Study type
Interventional
Source
EU CTR
Registry ID
EUCTR2018-004149-17-GB
Enrollment
54
Registered
2019-04-24
Start date
2019-06-07
Completion date
Unknown
Last updated
2019-12-10

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Mild Cognitive Impairment MedDRA version: 20.0 Level: LLT Classification code 10001896 Term: Alzheimer's disease System Organ Class: 100000004852

Interventions

Product Name: JNJ-40346527-AAC-G-002 Product Code: JNJ-40346527-AAC-G-002 Pharmaceutical Form: Capsule, hard CAS Number: 1142364-35-9 Cu

Sponsors

University of Oxford / Clinical Trials and Research Governance
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: - Any gender over and including 50 years old - Willing and able to provide informed consent - CDR Global score = 0.5 - Self and/or study partner report and impairment on objective cognitive tasks (performance on Hopkin’s verbal learning task (HVLT) – delay recall and/or free recall > 1 standard deviation (SD) below mean for age/education level). -Study Partner available, that spends at least 4 hours per week with the participant. The Study Partner must be willing and able to assist with the CDR interview, and will be provided with their own Information Sheet and Informed Consent form. - Able to read and write in English and with 7 minimum years formal education - Be considered eligible according to TB screening criteria - Be healthy on the basis of clinical laboratory tests performed at screening. - Women must be postmenopausal - Men who are heterosexually active must agree to use a double-barrier method of birth control and to not donate sperm during the study and for 6 months after last dose - Be willing to adhere to all of the procedures, prohibitions amd restrictions specified in the protocol. Are the trial subjects under 18? no Number of subjects for this age range: 0 F.1.2 Adults (18-64 years) yes F.1.2.1 Number of subjects for this age range 40 F.1.3 Elderly (>=65 years) yes F.1.3.1 Number of subjects for this age range 14

Exclusion criteria

Exclusion criteria: • Research participants who fulfil diagnostic criteria for any type of dementia (e.g. Alzheimer Dementia, Frontotemporal Dementia (FTD), Diffuse Lewy Body Dementia (DLBD), Vascular Dementia (VAD), etc) CDR =1. • Known carriers of a presenilin 1 (PSEN1), presenilin 2 (PSEN2) or APP mutation associated with Autosomal Dominant AD or any other neurodegenerative disease. • Prohibited or restricted concomitant medication as detailed in Section 10.1.7 in the protocol. • Presence of any neurological, psychiatric or medical conditions associated with a long-term risk of significant cognitive impairment or dementia including but not limited to pre-manifest Huntington’s disease, multiple sclerosis, Parkinson’s disease, Down syndrome, active alcohol/drug abuse or major psychiatric disorders including current major depressive disorder, schizophrenia, schizoaffective or bipolar disorder. To quantify abuse is to define this as history of drug or alcohol abuse according to Diagnostic and Statistical Manual of Mental Disorders (5th Edition) (DSM-V) criteria within 6 months before screening or positive test result for alcohol and/or drugs of abuse at screening/admission. • History of latent or active infection of one of the following infectious diseases at screening: Listeria infection, Histoplasma, Coccidioides, Paracoccidioides, Pneumocystis, nontuberculous mycobacteria, Blastomyces, Aspergillus, cytomegalovirus generalised or Herpes zoster infection • Any cancer or history of cancer in the preceding 5 years (excluding cutaneous basal or squamous cell cancer resolved by excision). • Any conditions that are clinically significant and may deem the participant’s participation in an investigational trial unsafe, e.g., symptomatic cardiovascular disease (including re-vascularisation procedures within the previous year), severe renal or hepatic failure, any clinically relevant abnormalities in blood parameters included in local routine assessments, severe loss of vision, hearing or communicative ability, conditions preventing co-operation or completing the required assessments in the trial, as judged by the Investigator. • Any contraindications for PET/MRI scanning. • Any contraindications for Lumbar Puncture. • Any evidence of intracranial pathology which may affect cognition including but not limited to brain tumours (benign or malignant), aneurysm or arteriovenous malformations, territorial stroke (excluding smaller watershed strokes), history of or recovering haemorrhage (parenchymal or subdural), or obstructive hydrocephalus. Research participants with an MRI scan demonstrating markers of small vessel disease (e.g. white matter changes or lacunar infarcts) judged to be clinically insignificant, or microbleeds are allowed. • Participation in a clinical trial with an Investigational Medicinal Product (IMP) in the last 30 days or 90 days in case of biologics. • Diminished decision-making capacity that renders the individual not capable of consenting. • Any other factors in the opinion of the Investigator that could contraindicate the participation of the research participant into this trial.

Design outcomes

Primary

MeasureTime frame
Main Objective: Placebo-controlled change from baseline in levels of CSF fluid protein markers including but not limited to IL-34 and CSF1.; Secondary Objective: 1. To investigate the effect of 300 mg JNJ-403346527 administered twice daily on other blood and CSF biomarkers including: a. Exploratory markers of target engagement b. Other markers of inflammation c. (Exploratory) markers of disease 2. To investigate the effect of 300 mg JNJ-40346527 administered twice daily on the CSF extracellular vesicles and cell population. 3. To characterise the plasma PK profile of JNJ-40346527 and measure JNJ-40346527 concentration in the brain (CSF). 4. To investigate the effect of minimally efficacious JNJ-40346527 dose level on CSF biomarkers. 5. To investigate the effect of JNJ-40346527 on neuroinflammation as measured by neuroimaging. 6. To investigate the effect of JNJ-40346527 on cognition. 7. To investigate the effect of JNJ-40346527 on participant wellbeing. 8. To investigate the safety and tolerability of JNJ-40346527 in participants with mild amnestic cognitive impairment. ;Primary end point(s): Placebo-controlled change from baseline in levels of CSF fluid protein markers including but not limited to IL-34 and CSF1.; Timepoint(s) of evaluation of this end point: Visit 5 (Day 11 - 14).

Secondary

MeasureTime frame
Secondary end point(s): 1. To investigate the effect of 300 mg JNJ-403346527 administered twice daily on other blood and CSF biomarkers including: a. Exploratory markers of target engagement b. Other markers of inflammation c. (Exploratory) markers of disease 2. To investigate the effect of 300 mg JNJ-40346527 administered twice daily on the CSF extracellular vesicles and cell population. 3. To characterise the plasma PK profile of JNJ-40346527 and measure JNJ-40346527 concentration in the brain (CSF). 4. To investigate the effect of minimally efficacious JNJ-40346527 dose level on CSF biomarkers. 5. To investigate the effect of JNJ-40346527 on neuroinflammation as measured by neuroimaging. 6. To investigate the effect of JNJ-40346527 on cognition. 7. To investigate the effect of JNJ-40346527 on participant wellbeing. 8. To investigate the safety and tolerability of JNJ-40346527 in participants with amnestic mild cognitive impairment. ; Timepoint(s) of evaluation of this end point: Visit 4 (Day 10 - 13) AND Visit 5 (Day 11 - 14). There is overlap here, however the Protocol specifies that Visit 5 can only take place when a participant has had Visit 4.

Countries

United Kingdom

Contacts

Public ContactJennifer Lawson

Department of Psychiatry

jennifer.lawson@psych.ox.ac.uk01865613104

Outcome results

None listed

Source: EU CTR (via WHO ICTRP) · Data processed: Feb 4, 2026