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CompletedNCT02626572Updated Jul 25, 2024

Efficacy and Safety of 3 Doses of S47445 Versus Placebo in Patients With Alzheimer's Disease at Mild to Moderate Stages With Depressive Symptoms

A Phase 2 interventional study of S47445 5mg and S47445 15mg in Alzheimer's Disease, sponsored by Institut de Recherches Internationales Servier. Completed at 78 sites in 12 countries. Open to participants aged 55 Years to 85 Years. Per ClinicalTrials.gov, last updated 2024-07-25.

Sponsored by Institut de Recherches Internationales Servier · Phase 2, Interventional, and Treatment

Phase
Phase 2
Study type
Interventional
Enrollment
500
Allocation
Randomized
Ages
55 Years to 85 Years
Sex
All
01

Study summary

The purpose of this trial is to assess the efficacy and safety of S47445 versus placebo in patients with Alzheimer's disease at mild to moderate stages with depressive symptoms. An optional 28-week extension period will be performed to evaluate safety/tolerance and efficacy of S47445 in co-administration with donepezil.

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Conditions studied

  • Alzheimer's Disease
03

In context

Alzheimer Disease

3,678 studies on the registry are indexed under Alzheimer Disease; 872 are open to participants now.

This study's planned enrollment of 500 is above the median of 70 across 2,808 interventional studies indexed under Alzheimer Disease.

Browse Alzheimer Disease studies →

Lead sponsor

Institut de Recherches Internationales Servier is the lead sponsor of 64 studies on the registry; 5 are open to participants now.

Of its 18 completed or terminated interventional studies of FDA-regulated products, 8 (44%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
55 Years to 85 Years
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  • Out-patients
  • Able to perform neuropsychological tests
  • Have a responsible informant
  • DSM-IV-TR criteria for Dementia of the Alzheimer's Disease Type
  • Mini mental State Examination (MMSE) = 15-24 both inclusive
  • National Institute of Mental Health (NIMH) provisional criteria for depression in AD (NIMH-dAD)
  • Cornell Scale for Depression in Dementia total score > or = 8
  • Patients who have never been treated with AD treatments or patients who have stopped AD treatment whatever the reason
  • Patients either not currently treated with an antidepressant or patients being treated with an antidepressant at the recommended dose for at least 8 weeks without clinical efficacy, who can stop this treatment according to the investigator's opinion.

Exclusion criteria

Exclusion Criteria:

  • Patients not able to read or write
  • Patients having participated in a study testing disease modifying therapy for AD, or in another study with administration of investigational drug or device within the previous 3 months prior to selection visit
  • Depressive symptoms that, in investigator's judgment, are clearly due to a medical condition other than AD, or are a direct result of non-mood related dementia symptoms
  • History of epilepsy or solitary seizure
  • Medical history of Major Depressive Disorder more than 3 years before onset of the disease, treated with antidepressive drugs or electroconvulsive therapy
  • Severe or unstable disease of any type that could interfere with safety and efficacy assessments
  • Alcohol abuse or drug abuse or addiction, as judged by the clinician (excluding nicotine)
  • Clinically relevant lactose intolerance
  • Antidepressant treatment not stopped for at least 3 weeks before inclusion
  • Significant worsening of depressive symptoms or high suicidal risk according to investigator's judgment
  • For optional extension phase: medically instable Chronic Obstructive Pulmonary Disease and asthma, known hypersensitivity to donepezil hydrochloride or piperidine derivatives
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Study design

Phase
Phase 2
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Quadruple (Participant, Care provider, Investigator, Outcomes assessor)
Enrollment
500 participants (estimated)

Study arms

  • Experimental
    S47445 5mg

    Drug: S47445 5mg

  • Experimental
    S47445 15mg

    Drug: S47445 15mg

  • Experimental
    S47445 50mg

    Drug: S47445 50mg

  • Placebo comparator
    Placebo

    Drug: Placebo

Interventions

  • DrugS47445 5mg

    S47445 5 mg tablets taken orally once a day during breakfast, starting the day after inclusion visit and ending the day of the W024 visit (main period) or starting the day after inclusion visit and ending the day of the W052 visit (period including main period and optional extension period).

  • DrugS47445 15mg

    S47445 15 mg tablets taken orally once a day during breakfast, starting the day after inclusion visit and ending the day of the W024 visit (main period) or starting the day after inclusion visit and ending the day of the W052 visit (period including main period and optional extension period).

  • DrugS47445 50mg

    S47445 50 mg tablets taken orally once a day during breakfast, starting the day after inclusion visit and ending the day of the W024 visit (main period) or starting the day after inclusion visit and ending the day of the W052 visit (period including main period and optional extension period).

  • DrugPlacebo

    Placebo tablets taken orally once a day during breakfast, starting the day after inclusion visit and ending the day of the W024 visit (main period) or starting the day after inclusion visit and ending the day of the W052 visit (period including main period and optional extension period).

06

What researchers measure

Primary outcomes

  1. Change from baseline on 11-item ADAS-Cog

    Cognition criterion

    Time frame: 24 weeks of treatment

Secondary outcomes

  1. Activities of Daily Living: Disability Assessment for Dementia (DAD)

    Key secondary efficacy criterion

    Time frame: baseline, week 12, week 24 and week 52

  2. Cognition: 13-item ADAS-Cog

    Other secondary efficacy criteria

    Time frame: baseline, week 4, week 12, week 24, week 38 and week 52

  3. Cognition: Mini-Mental State Examination (MMSE)

    Other secondary efficacy criteria

    Time frame: baseline, week 12, week 24 and week 52

  4. Depressive symptoms: Cornell Scale for Depression in Dementia (CSDD)

    Other secondary efficacy criteria

    Time frame: baseline, week 4, week 12, week 24, week 38 and week 52

  5. Behavioural signs and symptoms: Neuropsychiatric Inventory (NPI)

    Other secondary efficacy criteria

    Time frame: baseline, week 4, week 12, week 24 and week 52

  6. Global Clinic Assessment of Change: Alzheimer's Disease Cooperative Studies-Clinical Global Impression of Change (ADCS-CGIC)

    Other secondary efficacy criteria

    Time frame: baseline, week 24 and week 52

  7. Functionality: Gait task (GT), measure of speed of walking (unit= meters/ seconds)

    Other secondary efficacy criteria

    Time frame: baseline, week 4, week 12, week 24, week 38 and week 52

  8. Adverse events

    Safety criterion

    Time frame: through study completion, an average of 1 year

  9. Vital signs: heart rate

    Safety criterion

    Time frame: baseline, week 4, week 12, week 24, week 38 and week 52

  10. Vital signs: body temperature

    Safety criterion

    Time frame: baseline, week 4, week 12, week 24, week 38 and week 52

  11. Vital signs: blood pressure

    Safety criterion

    Time frame: baseline, week 4, week 12, week 24, week 38 and week 52

  12. Vital signs: body weight

    Safety criterion

    Time frame: baseline, week 12, week 24, week 38 and week 52

  13. 12-lead ECG

    Safety criterion

    Time frame: baseline, week 4, week 12, week 24, week 38 and week 52

  14. Biological laboratory parameters: number of participants with abnomal laboratory values

    Safety criterion

    Time frame: baseline, week 4, week 12, week 24, week 38 and week 52

  15. Cornell Scale for Depression in Dementia (CSDD, suicide item - item 16)

    Safety criterion

    Time frame: baseline, week 4, week 12, week 24, week 28, week 38 and week 52

07

Study locations

78 sites
  • Trial Tech Tecnologia em Pesquisa com Medicamentos
    Curitiba, Brazil
  • Hospital Universitario Walter Cantidio
    Fortaleza, Brazil
  • Clinilive - Centro de Pesquisas Clinicas
    Maringa, Brazil
  • Hospital das Clinicas de Porto Alegre
    Porto Alegre, Brazil
  • Hospital Oswaldo Cruz
    Recife, Brazil
  • Instituto Américo Bairral de Psiquiatria, Centro de Pesquisa
    Sao Paulo, Brazil
  • UNIFESP - Universidade Federal de Sao Paulo
    Sao Paulo, Brazil
  • UMHAT Sveti Georgi
    Plovdiv, Bulgaria
  • Medical University of Sofia, Aleksandrovska hospital
    Sofia, Bulgaria
  • National Hospital of Cardiology
    Sofia, Bulgaria
  • University Hospital Sveti Naum, Clinic of Neurology
    Sofia, Bulgaria
  • MHAT Sveta Marina
    Varna, Bulgaria
  • Clínica Oriente
    Antofagasta, Chile
  • Biomedica Research Group
    Santiago, Chile
  • Especialidades Medicas LYS
    Santiago, Chile
  • Hospital Santiago Oriente
    Santiago, Chile
  • Private practice
    Santiago, Chile
  • Saint Anne s.r.o. Psychiatricka ambulance
    Brno, Czechia
  • Brain-Soultherapy s.r.o.
    Kladno, Czechia
  • Bialbi s.r.o.
    Litomerice, Czechia
  • AD71 s.r.o. Psychiatricka ambulance - Sudkova
    Praha, Czechia
  • CLINTRIAL s.r.o.
    Praha, Czechia
  • FORBELI s.r.o., Neurologicka ambulance
    Praha, Czechia
  • Klinikum Altenburger Land GmbH Neurologische Klinik
    Altenburg, Germany
  • Neuropsychiatrisches Facharztzentrum Stiepel
    Bochum, Germany
  • Universitaetsklinikum des Saarlandes, Klinik für Psychiatrie und Psychotherapie
    Homburg / Saar, Germany
  • ISPG Institut für Studien zur Psychischen Gesundheit
    Mannheim, Germany
  • Pharmakologisches Studienzentrum Chemnitz GmbH
    Mittweida, Germany
  • Somni Bene, Institut fuer Medizinische Forschung und Schlafmedizin Schwerin GmbH
    Schwerin, Germany
  • Universitaetsklinik ULM, Poliklinik Neurologie
    Ulm, Germany
  • Private practice
    Westerstede, Germany
  • Semmelweis Egyetem Neurologiai Klinika
    Budapest, Hungary
  • Kenezy Gyula Korhaz es Rendelointezet
    Debrecen, Hungary
  • Vaszary Kolos Korhaz Esztergom Neurologiai Osztaly
    Esztergom, Hungary
  • Petz Aladar Megyei Oktato Korhaz Pszihiatriai, Mentalhygienes es Addiktologiai Osztaly
    Gyor, Hungary
  • Private practice
    Kalocsa, Hungary
  • B-A-Z Megyei Korhaz es Egyetemi Oktato Korhaz Stroke, Er- es Neurologiai, Toxikologiai Osztaly
    Miskolc, Hungary
  • Josa Andras Oktatokorhaz Pszihiatriai Osztaly
    Nyiregyhaza, Hungary
  • Pecsi Tudomanyegyetem, Klinikai Kozpont Pszich. es Pszichoter. Klinika
    Pecs, Hungary
  • Szent-Gyorgyi Albert Klinikai Kozpont Pszichiatriai Klinika
    Szeged, Hungary
  • Fejer Megyei Szent Gyorgy Egyetemi Oktato Korhaz Pszichiatriai Osztaly
    Szekesfehervar, Hungary
  • Memory Clinic Ochanomizu
    Bunkyo-ku, Japan
  • Showakai Clinic
    Kagoshima-shi, Japan
  • Rainbow & Sea Hospital
    Karatsu-shi, Japan
  • Kokan Clinic
    Kawasaki-shi, Japan
  • Social Medical Corporation Kojunkai Daido Hospital
    Nagoya, Japan
  • Nakano General Hospital
    Nakano-ku, Japan
  • Private practice
    Saitama-shi, Japan
  • Private practice
    Setagaya-ku, Japan
  • Seishinkai Okehazama Hospital
    Toyoake-shi, Japan
  • Instituto Biomedico de Investigacion
    Aguascalientes, Mexico
  • Centro de Estudios Clinicos Y Especialidades Medicas Sc
    Monterrey, Mexico
  • Hospital Universitario de Nuevo León
    Nuevo León, Mexico
  • University Hospital of Saltillo
    Saltillo, Mexico
  • Nzoz Centrum Kultury, Higieny I Zdrowia Psychicznego
    Bydgoszcz, Poland
  • Krakowska Akademia Neurologii Centrum Neurologii Klinicznej
    Krakow, Poland
  • NZOZ Neuromed M. i M. Nastaj Sp. Partnerska
    Lublin, Poland
  • Osrodek Alzheimerowski Sp. z o.o.
    Scinawa, Poland
  • SENIOR Poradnia Psychogeriatryczna
    Sopot, Poland
  • Centrum Medyczne Neuroprotect
    Warszawa, Poland
  • Interregional Clinico-Diagnostical Centre
    Kazan, Russian Federation
  • First Moscow State Medical University n.a.I.M. Sechenov Clinic of Neurology
    Moscow, Russian Federation
  • Scientific Center of Mental Health Sect of AD and associated disord. Dpt of gerontopsychiatry
    Moscow, Russian Federation
  • Scientific Center of Mental Health Sect of psychosis of elderly ages Dpt of gerontopsychiatry
    Moscow, Russian Federation
  • City geriatric medico-social centre
    St. Petersburg, Russian Federation
  • Medical Military Academy n.a.S.M.Kirov
    St. Petersburg, Russian Federation
  • Psychoneuropathology Dispensary N 10
    St. Petersburg, Russian Federation
  • Co Ltd "LION-MED"
    Voronezh, Russian Federation
  • Private practice
    Bratislava, Slovakia
  • INVESTA, spol. s r. o. Psychiatricka ambulancia
    Kosice, Slovakia
  • NsP Svatej Barbory Psychiatricke oddelenie
    Roznava, Slovakia
  • Iatros International
    Bloemfontein, South Africa
  • Flexivest Fourteen Research Centre
    Cape Town, South Africa
  • Umhlanga Hospital
    Durban, South Africa
  • Excellentis Clinical Trial Consultants
    George, South Africa
  • Apollo Clinical Research
    Johannesburg, South Africa
  • Denmar Hospital
    Pretoria, South Africa
  • Somerset West Trial Centre
    Somerset West, South Africa
08

References and documents

Publications

  • Bernard K, Gouttefangeas S, Bretin S, Galtier S, Robert P, Holthoff-Detto V, Cummings J, Pueyo M. A 24-week double-blind placebo-controlled study of the efficacy and safety of the AMPA modulator S47445 in patients with mild to moderate Alzheimer's disease and depressive symptoms. Alzheimers Dement (N Y). 2019 Jun 24;5:231-240. doi: 10.1016/j.trci.2019.04.002. eCollection 2019. PubMed 31297437 ↗

Related links

Individual participant data

Plan to share: Yes — Researchers can ask for a study protocol, patient-level and/or study-level clinical trial data including clinical study reports (CSRs). They can ask all interventional clinical studies: * submitted for new medicines and new indications approved after 1 January 2014 in the European Economic Area (EEA) or the United States (US). * Where Servier or an affiliate are the Marketing Authorization Holders (MAH). The date of the first Marketing Authorization of the new medicine (or the new indication) in one of the EEA Member States will be considered within this scope.

Supporting information: Study protocol, Sap, Icf, Csr

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Jul 25, 2024, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT02626572
Lead sponsor
Institut de Recherches Internationales Servier
Responsible party
Sponsor
First posted
Dec 10, 2015
Start date
Feb 2015
Primary completion
Sep 2017
Completion
Sep 2017
Last update
Jul 25, 2024

Oversight

Data monitoring committee
Yes
View the source record on ClinicalTrials.gov ↗

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This study is completed, as verified in Jul 2024. You cannot join it, but the record below documents what was studied.

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