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    Summary
    EudraCT Number:2022-002326-27
    Sponsor's Protocol Code Number:COG0201
    National Competent Authority:Spain - AEMPS
    Clinical Trial Type:EEA CTA
    Trial Status:Ongoing
    Date on which this record was first entered in the EudraCT database:2022-10-07
    Trial results
    Index
    A. PROTOCOL INFORMATION
    B. SPONSOR INFORMATION
    C. APPLICANT IDENTIFICATION
    D. IMP IDENTIFICATION
    D.8 INFORMATION ON PLACEBO
    E. GENERAL INFORMATION ON THE TRIAL
    F. POPULATION OF TRIAL SUBJECTS
    G. INVESTIGATOR NETWORKS TO BE INVOLVED IN THE TRIAL
    N. REVIEW BY THE COMPETENT AUTHORITY OR ETHICS COMMITTEE IN THE COUNTRY CONCERNED
    P. END OF TRIAL
    Expand All   Collapse All
    A. Protocol Information
    A.1Member State ConcernedSpain - AEMPS
    A.2EudraCT number2022-002326-27
    A.3Full title of the trial
    A RANDOMIZED, DOUBLE-BLIND, PLACEBO-CONTROLLED, PARALLEL-GROUP, PHASE 2 STUDY TO EVALUATE THE SAFETY AND EFFICACY OF CT1812 IN SUBJECTS WITH MILD TO MODERATE ALZHEIMER’S DISEASE
    Un estudio de fase 2, aleatorizado, doble ciego, controlado con placebo y de grupos paralelos para evaluar la seguridad y la eficacia de CT1812 en sujetos con enfermedad de Alzheimer de leve a moderada
    A.3.1Title of the trial for lay people, in easily understood, i.e. non-technical, language
    A RANDOMIZED, DOUBLE-BLIND, PLACEBO-CONTROLLED, PARALLEL-GROUP, PHASE 2 STUDY TO EVALUATE THE SAFETY AND EFFICACY OF CT1812 IN SUBJECTS WITH MILD TO MODERATE ALZHEIMER’S DISEASE
    Un estudio de fase 2, aleatorizado, doble ciego, controlado con placebo y de grupos paralelos para evaluar la seguridad y la eficacia de CT1812 en sujetos con enfermedad de Alzheimer de leve a moderada
    A.3.2Name or abbreviated title of the trial where available
    Clinical Trial of CT1812 in Mild to Moderate Alzheimer’s Disease
    Ensayo Clínico de CT1812 en enfermedad de Alzheimer de leve a moderada
    A.4.1Sponsor's protocol code numberCOG0201
    A.7Trial is part of a Paediatric Investigation Plan No
    A.8EMA Decision number of Paediatric Investigation Plan
    B. Sponsor Information
    B.Sponsor: 1
    B.1.1Name of SponsorCognition Therapeutics, Inc.
    B.1.3.4CountryUnited States
    B.3.1 and B.3.2Status of the sponsorCommercial
    B.4 Source(s) of Monetary or Material Support for the clinical trial:
    B.4.1Name of organisation providing supportCognition Therapeutics Inc.
    B.4.2CountryUnited States
    B.5 Contact point designated by the sponsor for further information on the trial
    B.5.1Name of organisationJulius Clinical
    B.5.2Functional name of contact pointProject Manager
    B.5.3 Address:
    B.5.3.1Street AddressBroederplein 41-43
    B.5.3.2Town/ cityZeist
    B.5.3.3Post code3703 CD
    B.5.3.4CountryNetherlands
    B.5.4Telephone number+31306569900
    B.5.6E-mailregulatory@juliusclinical.com
    D. IMP Identification
    D.IMP: 1
    D.1.2 and D.1.3IMP RoleTest
    D.2 Status of the IMP to be used in the clinical trial
    D.2.1IMP to be used in the trial has a marketing authorisation No
    D.2.5The IMP has been designated in this indication as an orphan drug in the Community No
    D.2.5.1Orphan drug designation number
    D.3 Description of the IMP
    D.3.1Product nameCT1812
    D.3.2Product code CT1812 fumarate
    D.3.4Pharmaceutical form Capsule, hard
    D.3.4.1Specific paediatric formulation No
    D.3.7Routes of administration for this IMPOral use
    D.3.8 to D.3.10 IMP Identification Details (Active Substances)
    D.3.8INN - Proposed INNCT1812 fumarate
    D.3.9.2Current sponsor codeCT1812 fumarate
    D.3.9.3Other descriptive name2-(tert-butoxy)-4-(3-methyl-3-(5-(methylsulfonyl)isoindolin-2-yl)butyl)phenolfumarate
    D.3.9.4EV Substance CodeSUB201311
    D.3.10 Strength
    D.3.10.1Concentration unit mg milligram(s)
    D.3.10.2Concentration typeequal
    D.3.10.3Concentration number300
    D.3.11 The IMP contains an:
    D.3.11.1Active substance of chemical origin Yes
    D.3.11.2Active substance of biological/ biotechnological origin (other than Advanced Therapy IMP (ATIMP) No
    The IMP is a:
    D.3.11.3Advanced Therapy IMP (ATIMP) No
    D.3.11.3.1Somatic cell therapy medicinal product No
    D.3.11.3.2Gene therapy medical product No
    D.3.11.3.3Tissue Engineered Product No
    D.3.11.3.4Combination ATIMP (i.e. one involving a medical device) No
    D.3.11.3.5Committee on Advanced therapies (CAT) has issued a classification for this product No
    D.3.11.4Combination product that includes a device, but does not involve an Advanced Therapy No
    D.3.11.5Radiopharmaceutical medicinal product No
    D.3.11.6Immunological medicinal product (such as vaccine, allergen, immune serum) No
    D.3.11.7Plasma derived medicinal product No
    D.3.11.8Extractive medicinal product No
    D.3.11.9Recombinant medicinal product No
    D.3.11.10Medicinal product containing genetically modified organisms No
    D.3.11.11Herbal medicinal product No
    D.3.11.12Homeopathic medicinal product No
    D.3.11.13Another type of medicinal product No
    D.8 Information on Placebo
    D.8 Placebo: 1
    D.8.1Is a Placebo used in this Trial?Yes
    D.8.3Pharmaceutical form of the placeboCapsule, hard
    D.8.4Route of administration of the placeboOral use
    E. General Information on the Trial
    E.1 Medical condition or disease under investigation
    E.1.1Medical condition(s) being investigated
    Mild to Moderate Alzheimer's Disease
    Enfermedad de Alzheimer de leve a moderada
    E.1.1.1Medical condition in easily understood language
    Mild to Moderate Alzheimer's Disease
    Enfermedad de Alzheimer de leve a moderada
    E.1.1.2Therapeutic area Diseases [C] - Nervous System Diseases [C10]
    MedDRA Classification
    E.1.2 Medical condition or disease under investigation
    E.1.2Version 20.0
    E.1.2Level LLT
    E.1.2Classification code 10001896
    E.1.2Term Alzheimer's disease
    E.1.2System Organ Class 100000004852
    E.1.3Condition being studied is a rare disease No
    E.2 Objective of the trial
    E.2.1Main objective of the trial
    To evaluate the safety and tolerability of two doses of once-daily oral CT1812, administered for 6 months in participants with mild to moderate Alzheimer’s disease.
    Evaluar la seguridad y tolerabilidad de dos dosis de CT1812 oral una vez al día, administrado durante 6 meses en participantes con enfermedad de Alzheimer de leve a moderada
    E.2.2Secondary objectives of the trial
    To assess target engagement and identify pharmacodynamic effect of CT1812 on CSF biomarkers.

    5.3 Exploratory Objectives
    - To evaluate the efficacy of two doses of once-daily oral CT1812, administered for 6 months in participants with mild to moderate Alzheimer’s disease.
    - To identify and assess metabolites of CT1812 in plasma.
    Evaluar la participación de los sujetos objetivo e identificar los efectos farmacodinámicos de CT1812 en los biomarcadores del LCR.

    5.3 Objetivos exploratorios
    - Evaluar la eficacia de dos dosis de CT1812 oral una vez al día, administrado durante 6 meses en participantes con enfermedad de Alzheimer de leve a moderada.
    - Identificar y evaluar los metabolitos plasmáticos de CT1812.
    E.2.3Trial contains a sub-study No
    E.3Principal inclusion criteria
    Participants may be included in the study only if they meet all of the following criteria:
    1) Men, and women of non-childbearing potential, 50-85 years of age inclusively, with a diagnosis of mild to moderate Alzheimer’s disease according to the 2011 NIA-AA criteria and at least a 6 month decline in cognitive function documented in the medical record.
    i) Non-childbearing potential for women is defined as postmenopausal (last natural menses greater than 24 months) or undergone a documented bilateral tubal ligation or hysterectomy. If last natural menses less than 24 months, a serum FSH value confirming post-menopausal status can be employed.
    ii) Male participants who are sexually active with a woman of child-bearing potential must agree to use condoms during the trial and for 3 months after last dose unless the woman is using an acceptable means of birth control. Acceptable forms of birth control include abstinence, birth control pills, or any double combination of:
    intrauterine device (IUD), male or female condom, diaphragm, sponge, and cervical cap.
    2) Diagnostic confirmation by amyloid PET with florbetaben or another approved amyloid PET ligand. Previous amyloid imaging study with a positive result will be accepted. If none is available, then amyloid PET will be conducted during screening. Diagnostic confirmation by a CSF sample collected at the screening visit lumbar puncture in place of amyloid PET will also be acceptable. Inclusion via CSF samples requires: low abeta 42 (abeta 42<667 ng/L)
    OR low abeta 42/40 ratio (abeta 42/40 ratio x 10 < 0.72) AND either increased total-tau (total-tau > 374 ng/L) OR increased phospho-tau (phospho-tau> 78 ng/L).
    3) Neuroimaging (MRI) obtained during screening consistent with the clinical diagnosis of Alzheimer’s disease and without findings of significant exclusionary abnormalities (see exclusion criteria, number 4). An historical MRI, up to 1 year prior to screening, may be used as long as there is no history of intervening neurologic disease or clinical events (such as a stroke, head trauma etc.) and the subject is without clinical symptoms or signs
    suggestive of such intervening events.
    4) MMSE 18-26 inclusive.
    5) No active depression and a GDS ≤6 (see exclusion criteria number 6).
    6) Modified Hachinski ≤4.
    7) Formal education of eight or more years.
    8) Subjects must have a caregiver/ study partner who in the opinion of the site principal investigator, has contact with the study subject for a sufficient number of hours per week to provide informative responses on the protocol assessments, oversee the administration of study drug, and is willing and able to participate in all clinic visits and some study assessments. The caregiver/ study partner must provide written informed consent to
    participate in the study.
    9) Subjects living at home or in the community (assisted living acceptable).
    10) Ability to swallow CT1812 capsules.
    11) Stable pharmacological treatment of any other chronic conditions for at least 30 days prior to screening.
    12) Subjects must be capable of providing written informed consent to the study procedures
    and for use of protected health information [Health Insurance Portability and Accountability
    Act (HIPAA), if applicable]. Written informed consent also shall be obtained from the
    responsible caregiver. All consent processes must be undertaken in the presence of a
    witness and prior to any study procedures.
    13) Must consent to apolipoprotein E (ApoE) genotyping for data analysis stratification.
    14) Subjects shall be generally healthy with mobility (ambulatory or ambulatory-aided, i.e., walker or cane), vision and hearing (hearing aid permissible) sufficient for compliance with testing procedures.
    15) Must be able to complete all screening evaluations.
    1) Hombres y mujeres sin capacidad de procrear, de 50 a 85 años de edad inclusive, con un diagnóstico de enfermedad de Alzheimer de leve a moderada según los criterios del Instituto Nacional del Envejecimiento y la Asociación de Alzheimer (NIA-AA por sus siglas en inglés) de 2011 y con un deterioro de la función cognitiva de al menos 6 meses documentado en la historia clínica.
    i) Las mujeres sin potencial reproductivo se definen como posmenopáusicas (última menstruación natural de más de 24 meses) o sometidas a una ligadura de trompas bilateral documentada o a una histerectomía. Si la última menstruación natural fuese inferior a 24 meses, se puede emplear un valor de FSH en suero que confirme el estado posmenopáusico.
    ii) Los participantes masculinos que sean sexualmente activos con una mujer en edad fértil deberán aceptar el uso de preservativos durante el ensayo y durante los 3 meses posteriores a la última dosis, a menos que la mujer utilice un método anticonceptivo aceptable. Se considerará como un método anticonceptivo aceptable la abstinencia, las píldoras anticonceptivas o cualquier combinación doble de: dispositivo intrauterino (DIU), preservativo masculino o femenino, diafragma, esponja y capuchón cervical.
    2) Confirmación diagnóstica mediante PET amiloide con florbetaben u otro ligando PET amiloide aprobado. Se aceptará un estudio previo de imagen amiloide con un resultado positivo. Si no se dispone de ninguno, se realizará una PET amiloide durante la exploración. También se aceptará la confirmación diagnóstica mediante una muestra de LCR recogida en la visita exploratoria por punción lumbar en lugar de la PET amiloide. La inclusión a través de muestras de LCR requiere: abeta 42 bajo (abeta 42<667 ng/L) O una relación abeta 42/40 baja (relación abeta 42/40 x 10 < 0,72) Y un aumento del tau total (tau total > 374 ng/L) O un aumento del fosfo-tau (fosfo-tau> 78 ng/L).
    3) Neuroimagen (IRM) obtenida durante la exploración consistente con el diagnóstico clínico de enfermedad de Alzheimer y sin hallazgos de anomalías significativas de exclusión (véase el criterio de exclusión número 4). Se podrá utilizar una resonancia magnética histórica, hasta 1 año anterior a la exploración, siempre que no haya antecedentes de enfermedades neurológicas o acontecimientos clínicos posteriores (como un accidente cerebrovascular, un traumatismo craneoencefálico, etc.) y el sujeto no presente síntomas o signos clínicos que sugieran tales acontecimientos posteriores.
    4) Mini Examen del Estado Mental (MMSE, por sus siglas en inglés) 18-26 inclusive.
    5) Sin depresión activa y con un GDS ≤6 (véase el criterio de exclusión número 6).
    6) Hachinski modificado ≤ 4.
    7) Educación formal de ocho o más años.
    8) Los sujetos deben tener un cuidador/compañero de estudio que, en opinión del investigador principal del centro, esté en contacto con el sujeto del estudio durante un número suficiente de horas a la semana para proporcionar respuestas informativas sobre las evaluaciones del protocolo, supervisar la administración del fármaco del estudio y estar dispuesto y ser capaz de participar en todas las visitas clínicas y en algunas evaluaciones del estudio. El cuidador/compañero de estudio debe dar su consentimiento informado por escrito para participar en el estudio.
    9) Sujetos que vivan en casa o en comunidad (se aceptan centros de vida asistida).
    10) Capacidad para tragar cápsulas de CT1812.
    11) Tratamiento farmacológico estable de cualquier otra afección crónica durante al menos 30 días antes de la exploración.
    12) Los sujetos deben ser capaces de dar su consentimiento informado por escrito para los procedimientos del estudio y para el uso de información sanitaria protegida [Ley de portabilidad y responsabilidad del seguro médico (HIPAA, por sus siglas en inglés), si procede]. También se obtendrá el consentimiento informado por escrito del cuidador responsable. Todos los procesos de consentimiento deberán realizarse en presencia de un testigo y antes de cualquier procedimiento del estudio.
    13) Deberán dar su consentimiento para el genotipo de la apolipoproteína E (ApoE) para la estratificación del análisis de datos.
    14) Los sujetos deberán gozar de buena salud en general y tener movilidad (ambulatoria o con ayuda de un andador o bastón), visión y audición (se permite el uso de audífonos) suficientes para cumplir con los procedimientos de las pruebas.
    15) Deberán ser capaces de completar todas las evaluaciones de selección.
    E.4Principal exclusion criteria
    Participants will be excluded from the study if any of the following conditions apply:
    1) Hospitalization (except for planned procedures) or change of chronic concomitant medication within one month prior to screening.
    2) Subjects living in a continuous care nursing facility.
    3) Contraindications to the MRI examination for any reason.
    4) Screening MRI (or historical MRI, if applicable) of the brain indicative of significant abnormality, including, but not limited to, prior hemorrhage or infarct >1 cm3, >3 lacunar infarcts, cerebral contusion, encephalomalacia, aneurysm, vascular malformation, subdural hematoma, hydrocephalus, space-occupying lesion (e.g. abscess or brain tumor such as meningioma). If a small incidental meningioma is observed, the medical monitor may be
    contacted to discuss eligibility.
    5) Clinical or laboratory findings consistent with:
    a) Other primary degenerative dementia, (dementia with Lewy bodies, fronto-temporal dementia, Huntington’s disease, Creutzfeldt-Jakob Disease, Down syndrome, etc.).
    b) Other neurodegenerative condition (Parkinson’s disease, amyotrophic lateral sclerosis, etc.).
    c) Seizure disorder.
    d) Other infectious, metabolic or systemic diseases affecting the central nervous system
    (syphilis, present hypothyroidism, present vitamin B12 or folate deficiency, other
    laboratory values etc.).
    6) A current DSM-V diagnosis of active major depression, schizophrenia or bipolar disorder.
    Subjects with depressive symptoms successfully managed by a stable dose of an
    antidepressant are allowed entry.
    7) Clinically significant, advanced or unstable disease that may interfere with outcome
    evaluations, such as:
    a) Chronic liver disease, liver function test abnormalities or other signs of hepatic
    insufficiency (ALT, AST, alkaline phosphatase > 1.5 ULN, lactate dehydrogenase (LDH)
    > 1.5 x ULN).
    b) Respiratory insufficiency.
    c) Renal insufficiency eGFR < 50 mL/min based on the CKD‐EPI formula, as calculated by
    the central laboratory.
    d) Heart disease (myocardial infarction, unstable angina, heart failure, cardiomyopathy within six months before screening).
    e) Bradycardia (<50/min.) or tachycardia (>100/min.).
    f) Poorly managed hypertension (systolic >160 mm Hg and/or diastolic >95 mm Hg) or hypotension (systolic <90 mm Hg and/or diastolic <60 mm Hg).
    g) Uncontrolled diabetes defined by HbA1c >7.5 in patients with diabetes, Only those subjects with known diabetes are required to get a HbA1c at screen.
    8) History of cancer within 3 years of screening with the exception of fully excised nonmelanoma skin cancers or non-metastatic prostate cancer that has been stable for at least 6
    months.
    9) Seropositive for human immunodeficiency virus (HIV).
    10) 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).
    11) Clinically significant abnormalities in screening laboratory tests, including:
    d) Hematocrit less than 35% for males and less than 32% for females, absolute neutrophil cell count of 1500/uL (with the exception of a documented history of a chronic benign neutropenia), or platelet cell count of <120,000/uL; INR >1.4 or other coagulopathy,
    confirmed by repeat assessment of:
    i) Hematocrit.
    ii) Neutrophil count.
    iii) Platelet count.
    12) Disability that may prevent the subject from completing all study requirements (e.g. blindness, deafness, severe language difficulty, etc.).
    13) Within 4 weeks of screening visit or during the course of the study, concurrent treatment with antipsychotic agents, antiepileptics, centrally active anti-hypertensive drugs (e.g., clonidine, l-methyl dopa, guanidine, guanfacine, etc.), sedatives, opioids, mood stabilizers (e.g.,
    valproate, lithium); or benzodiazepines, with the following exception:
    d) Low dose lorazepam may be used for sedation prior to MRI scan for those subjects requiring sedation. At the discretion of the investigator, 0.5 to 1 mg may be given orally prior to scan with a single repeat dose given if the first dose is ineffective. No more than a total of 2 mg lorazepam may be used for the MRI scan.
    14) Any disorder that could interfere with the absorption, distribution, metabolism or excretion of drugs (e.g. small bowel disease, Crohn’s disease, celiac disease, or liver disease).
    15) Nootropic drugs except stable AD meds (acetylcholinesterase inhibitors and memantine.
    16) Suspected or known drug or alcohol abuse, i.e. more than approximately 60 g alcohol (approximately 1 liter of beer or 0.5 liter of wine) per day indicated by elevated MCV significantly above normal value at screening.
    17) Suspected or known allergy to any components of the study treatments. Please refer to the Investigator’s Brochure for a current listing of study drug ingredients.

    Please refer to protocol for remaining exclusion criteria.
    1)Hospitalización (excepto por procedimientos planificados) o cambio de medicación crónica concomitante dentro del mes anterior a la exploración.
    2)Sujetos que viven en un centro de cuidados continuos.
    3)Contraindicación al examen de IRM por cualquier motivo.
    4)Exploración por IRM (o resonancia magnética histórica, si procede) del cerebro que indique una anomalía significativa, incluido, entre otros, una hemorragia o infarto previo > 1 cm3, >3 infartos lacunares, contusión cerebral, encefalomalacia, aneurisma, malformación vascular, hematoma subdural, hidrocefalia, lesión que ocupe espacio (por ejemplo, absceso o tumor cerebral como un meningioma). Si se observa un pequeño meningioma incidental, se puede contactar con el supervisor médico para determinar la aptitud.
    5)Hallazgos clínicos o de laboratorio consistentes con:
    a.Otras demencias degenerativas primarias, (demencia con cuerpos de Lewy, demencia frontotemporal, enfermedad de Huntington, enfermedad de Creutzfeldt-Jakob, síndrome de Down, etc.).
    b.Otra enfermedad neurodegenerativa (enfermedad de Parkinson, esclerosis lateral amiotrófica, etc.).
    c.Trastorno convulsivo.
    d.Otras enfermedades infecciosas, metabólicas o sistémicas que afecten al sistema nervioso central (sífilis, hipotiroidismo, deficiencia de vitamina B12 o folato, otros valores de laboratorio, etc.).
    6)Un diagnóstico actual del Manual diagnóstico y estadístico de los trastornos mentales (DSM-5) de depresión mayor activa, esquizofrenia o trastorno bipolar. Los sujetos con síntomas depresivos tratados con éxito mediante una dosis estable de un antidepresivo pueden participar.
    7)Enfermedad clínicamente significativa, avanzada o inestable que pueda interferir con las evaluaciones de resultados, como:
    a.Enfermedad hepática crónica, anomalías en las pruebas de función hepática u otros signos de insuficiencia hepática (ALT, AST, fosfatasa alcalina > 1,5 LSN, lactato deshidrogenasa (LDH) > 1,5 x LSN).
    b.Insuficiencia respiratoria.
    c.Insuficiencia renal TFGe< 50 mL/min según la fórmula CKD-EPI, calculada por el laboratorio central.
    d.Enfermedad cardíaca (infarto de miocardio, angina inestable, insuficiencia cardíaca, cardiomiopatía en los seis meses anteriores a la exploración).
    e.Bradicardia (<50/min) O taquicardia (<100/min).
    f.Hipertensión mal controlada (sistólica >160 mm Hg o diastólica >95 mm Hg) o hipotensión (sistólica <90 mm Hg o diastólica <60 mm Hg).
    g.Diabetes no controlada definida por HbA1c >7,5 en pacientes con diabetes. Solo los sujetos con diabetes conocida deben hacerse una HbA1c en la exploración.
    8)Antecedentes de cáncer en los 3 años anteriores a la exploración, a excepción de los cánceres de piel no melanoma totalmente extirpados o el cáncer de próstata no metastásico que haya permanecido estable durante al menos 6 meses.
    9)Seropositivo para el virus de la inmunodeficiencia humana (VIH).
    10)Antecedentes de hepatitis B o C aguda/crónica o portadores de hepatitis B (seropositivos al antígeno de superficie de la hepatitis B [HbsAg] o al anticuerpo antihepatitis C [VHC]).
    11)Anomalías clínicamente significativas en las pruebas de laboratorio de selección, incluyendo:
    a.Hematocrito inferior al 35 % para los hombres y al 32 % para las mujeres, recuento absoluto de neutrófilos de 1.500/uL (con la excepción de un historial documentado de neutropenia crónica benigna), o recuento de plaquetas de < 120.000/uL; INR >1,4 u otra coagulopatía, confirmada por la repetición de la evaluación de:
    i.Hematocrito
    ii.Recuento de neutrófilos
    iii.Recuento de plaquetas
    12)Discapacidad que pueda impedir que el sujeto cumpla con todos los requisitos del estudio (por ejemplo, ceguera, sordera, dificultad lingüística grave, etc.).
    13)En las 4 semanas anteriores a la visita exploratoria o durante el transcurso del estudio, tratamiento concurrente con agentes antipsicóticos, antiepilépticos, fármacos antihipertensivos de acción central (por ejemplo, clonidina, l-metil dopa, guanidina, guanfacina, etc.), sedantes, opioides, estabilizadores del estado de ánimo (por ejemplo, valproato, litio); o benzodiacepinas, con la siguiente excepción:
    a.Se puede utilizar una dosis baja de lorazepam para la sedación antes de la IRM para aquellos sujetos que requieran sedación. A criterio del investigador, podrán administrarse de 0,5 a 1 mg por vía oral antes de la exploración, con una dosis única repetida si la primera dosis no es eficaz. No se puede utilizar más de un total de 2 mg de lorazepam para la IRM.
    14)Cualquier trastorno que pueda interferir en la absorción, distribución, metabolismo o excreción de los medicamentos (por ejemplo, enfermedad del intestino delgado, enfermedad de Crohn, enfermedad celíaca o enfermedad hepática).
    15)Fármacos nootrópicos excepto los medicamentos estables para la EA (inhibidores de la acetilcolinesterasa y memantina.

    Consulte el protocolo para conocer el resto de los criterios de exclusión.
    E.5 End points
    E.5.1Primary end point(s)
    Safety Endpoints
    - The incidence and severity of adverse events.
    - The change in usage of concomitant medications.
    - Changes in vital signs.
    - Changes in physical exam findings.
    - Changes in electrocardiogram findings.
    - Changes in clinical laboratory testing (serum chemistry, hematology, urinalysis).
    - Changes in the Columbia Suicide Severity Rating Scale (C-SSRS).

    Efficacy Endpoints
    - Mini Mental State Exam (MMSE).
    - ADAS-cog 11 and ADAS-cog 13 (Delayed Recall and digit cancellation added to ADAS-
    11 in the ADAS-13).
    - Neuropsychological Test Battery (NTB). NTB includes Trails A & B, Digit Span, Letter &
    Category Fluency (COWAT and CFT).
    - ADCS-Clinical Global Impression of Change (CGIC).
    - ADCS-Activities of Daily Living (ADCS-ADL).

    Pharmacokinetic/Pharmacodynamic Endpoints
    - Pharmacokinetics:
    o CT1812 CSF/plasma concentration ratio (end of study only).
    o Changes in pre-dose CT1812 plasma concentrations.
    o Plasma CT1812 metabolites.
    - Pharmacodynamics:
    o CSF- abeta, tau, phospho-tau, neurogranin, synaptotagmin, SNAP25
    (synaptosomal-associated protein 25), Neuro Filament Light Chain (NFL), Aβ
    oligomers. Other exploratory target engagement biomarkers may also be
    evaluated.
    Criterios de seguridad
    - La incidencia y la severidad de los eventos adversos.
    - El cambio en el uso de la medicación concomitante.
    - Cambios en los signos vitales.
    - Cambios en resultados de la exploración física.
    - Cambios en resultados de electrocardiogramas.
    - Cambios en pruebas clínicas de laboratorio (química sanguínea, hematología, urianálisis),
    - Cambios en la escala de clasificación de gravedad de riesgo de suicido de la universidad de Columbia (C-SSRS, por sus siglas en inglés).

    Criterios de eficacia
    - Mini examen del estado mental (MMSE).
    - ADAS-cog 11 y ADAS-cog 13 (memoria demorada y cancelación de dígitos agregada a la ADAS-
    11 en la ADAS-13).
    - Batería de evaluación neuropsicológica (NTB). NTB incluye Partes A y B, prueba de secuencia de números,
    Fluidez fonológica y semántica (COWAT y CFT).
    - ADCS-Impresión clínica global del cambio (CGIC).
    - ADCS-Actividades de la vida cotidiana (ADCS-ADL).

    Criterios de farmacocinética / farmacodinámica
    - Farmacocinética:
    o Ratio de concentración de CT1812 en el LCR / plasma (fin del estudio únicamente).
    o Cambios en la dosis previa de concentraciones de CT1812 en el plasma.
    o Metabolitos de CT1812 en el plasma.
    - Farmacodinámica:
    o β-amiloide en el LCR, tau, tau fosforilada, neurogranina, sinaptotagmina, SNAP25
    (proteína asociada al sinaptosoma 25), cadena ligera de neurofilamentos (NfL),
    oligómeros Aβ. También se podrían evaluar otros biomarcadores exploratorios involucrados con el objetivo
    E.5.1.1Timepoint(s) of evaluation of this end point
    Safety: from screening until end of study
    Exploratory: from screening until end of study
    Pharmacokinetic: from baseline until end of study
    Seguridad: desde la selección hasta el final del estudio
    Exploratorios: desde la selección hasta el final del estudio
    Farmacocinética: desde la selección hasta el final del estudio
    E.5.2Secondary end point(s)
    NA
    NA
    E.5.2.1Timepoint(s) of evaluation of this end point
    NA
    NA
    E.6 and E.7 Scope of the trial
    E.6Scope of the trial
    E.6.1Diagnosis No
    E.6.2Prophylaxis No
    E.6.3Therapy No
    E.6.4Safety Yes
    E.6.5Efficacy Yes
    E.6.6Pharmacokinetic Yes
    E.6.7Pharmacodynamic No
    E.6.8Bioequivalence No
    E.6.9Dose response No
    E.6.10Pharmacogenetic No
    E.6.11Pharmacogenomic No
    E.6.12Pharmacoeconomic No
    E.6.13Others Yes
    E.6.13.1Other scope of the trial description
    Tolerability
    Tolerabilidad
    E.7Trial type and phase
    E.7.1Human pharmacology (Phase I) No
    E.7.1.1First administration to humans No
    E.7.1.2Bioequivalence study No
    E.7.1.3Other No
    E.7.1.3.1Other trial type description
    E.7.2Therapeutic exploratory (Phase II) Yes
    E.7.3Therapeutic confirmatory (Phase III) No
    E.7.4Therapeutic use (Phase IV) No
    E.8 Design of the trial
    E.8.1Controlled Yes
    E.8.1.1Randomised Yes
    E.8.1.2Open No
    E.8.1.3Single blind No
    E.8.1.4Double blind Yes
    E.8.1.5Parallel group Yes
    E.8.1.6Cross over No
    E.8.1.7Other No
    E.8.2 Comparator of controlled trial
    E.8.2.1Other medicinal product(s) No
    E.8.2.2Placebo Yes
    E.8.2.3Other No
    E.8.2.4Number of treatment arms in the trial3
    E.8.3 The trial involves single site in the Member State concerned No
    E.8.4 The trial involves multiple sites in the Member State concerned Yes
    E.8.4.1Number of sites anticipated in Member State concerned6
    E.8.5The trial involves multiple Member States Yes
    E.8.5.1Number of sites anticipated in the EEA13
    E.8.6 Trial involving sites outside the EEA
    E.8.6.1Trial being conducted both within and outside the EEA Yes
    E.8.6.2Trial being conducted completely outside of the EEA No
    E.8.6.3If E.8.6.1 or E.8.6.2 are Yes, specify the regions in which trial sites are planned
    United States
    Spain
    Czechia
    E.8.7Trial 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
    LVLS
    Última visita último paciente
    E.8.9 Initial estimate of the duration of the trial
    E.8.9.1In the Member State concerned years2
    E.8.9.1In the Member State concerned months2
    E.8.9.1In the Member State concerned days0
    E.8.9.2In all countries concerned by the trial years2
    E.8.9.2In all countries concerned by the trial months2
    E.8.9.2In all countries concerned by the trial days0
    F. Population of Trial Subjects
    F.1 Age Range
    F.1.1Trial has subjects under 18 No
    F.1.1.1In Utero No
    F.1.1.2Preterm newborn infants (up to gestational age < 37 weeks) No
    F.1.1.3Newborns (0-27 days) No
    F.1.1.4Infants and toddlers (28 days-23 months) No
    F.1.1.5Children (2-11years) No
    F.1.1.6Adolescents (12-17 years) No
    F.1.2Adults (18-64 years) Yes
    F.1.2.1Number of subjects for this age range: 72
    F.1.3Elderly (>=65 years) Yes
    F.1.3.1Number of subjects for this age range: 72
    F.2 Gender
    F.2.1Female Yes
    F.2.2Male Yes
    F.3 Group of trial subjects
    F.3.1Healthy volunteers No
    F.3.2Patients Yes
    F.3.3Specific vulnerable populations No
    F.3.3.1Women of childbearing potential not using contraception No
    F.3.3.2Women of child-bearing potential using contraception No
    F.3.3.3Pregnant women No
    F.3.3.4Nursing women No
    F.3.3.5Emergency situation No
    F.3.3.6Subjects incapable of giving consent personally No
    F.3.3.7Others No
    F.4 Planned number of subjects to be included
    F.4.1In the member state16
    F.4.2 For a multinational trial
    F.4.2.1In the EEA 45
    F.4.2.2In the whole clinical trial 144
    F.5 Plans for treatment or care after the subject has ended the participation in the trial (if it is different from the expected normal treatment of that condition)
    None.
    Ninguno.
    G. Investigator Networks to be involved in the Trial
    N. Review by the Competent Authority or Ethics Committee in the country concerned
    N.Competent Authority Decision Authorised
    N.Date of Competent Authority Decision2022-12-15
    N.Ethics Committee Opinion of the trial applicationFavourable
    N.Ethics Committee Opinion: Reason(s) for unfavourable opinion
    N.Date of Ethics Committee Opinion2022-11-28
    P. End of Trial
    P.End of Trial StatusOngoing
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