A Study of Gantenerumab in Participants With Mild Alzheimer Disease
A Phase III, Randomized, Double-Blind, Placebo-Controlled, Parallel-Group, Multicenter, Efficacy and Safety Study of Gantenerumab in Patients With Mild Alzheimer's Disease; Part II: Open-Label Extension For Participating Patients
2 other identifiers
interventional
389
22 countries
131
Brief Summary
Part 1 is a multicenter, randomized, double-blind, placebo-controlled, parallel-group study will evaluate the efficacy and safety of gantenerumab in participants with mild Alzheimer disease. Participants will be randomized to receive either gantenerumab subcutaneously every 4 weeks or placebo subcutaneously every 4 weeks. Approved Alzheimer medication is allowed if on stable dose for 3 months prior to screening. Part 2 is an open-label extension (OLE). A positron emission tomography (PET) imaging substudy will be conducted within the main study. Eligible participants who provide separate informed consent will undergo PET imaging scans using the radioligand florbetapir as a pharmacodynamic measure of changes in brain amyloid load over time.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P50-P75 for phase_3
Started Mar 2014
Longer than P75 for phase_3
131 active sites
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
Click on a node to explore related trials.
Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
January 30, 2014
CompletedFirst Posted
Study publicly available on registry
January 31, 2014
CompletedStudy Start
First participant enrolled
March 27, 2014
CompletedPrimary Completion
Last participant's last visit for primary outcome
April 16, 2021
CompletedStudy Completion
Last participant's last visit for all outcomes
April 16, 2021
CompletedResults Posted
Study results publicly available
June 16, 2022
CompletedFebruary 10, 2023
February 1, 2023
7.1 years
January 30, 2014
April 8, 2022
February 8, 2023
Conditions
Outcome Measures
Primary Outcomes (3)
Part 2: Percentage of Participants With Adverse Events (AEs) or Serious Adverse Events (SAEs)
An AE is any untoward medical occurrence in a participant administered a pharmaceutical product and which does not necessarily have to have a causal relationship with the treatment. An adverse event can therefore be any unfavorable and unintended sign (including an abnormal laboratory finding, for example), symptom, or disease temporally associated with the use of a pharmaceutical product, whether or not considered related to the pharmaceutical product. SAE is any adverse event that is fatal or which requires or prolongs inpatient hospitalization or results in persistent or significant disability/incapacity or causes congenital anomaly/birth defect or results in a significant medical event in the investigator's judgment.
First dose up to 4 weeks after the last dose of study drug (up to 249 weeks)
Part 2: Percentage of Participants With Treatment Emergent Anti-Drug Antibodies (ADAs)
Participants were considered positive or negative for ADA based on their baseline and post-baseline sample results. The number and percentage of participants with confirmed positive ADA levels were determined for participants previously (in part 1) on Gantenerumab and Placebo. The prevalence of ADA at baseline was calculated as the percentage of participants with confirmed positive ADA levels at baseline relative to the total number of participants with a sample available at baseline. The incidence of treatment-emergent ADAs was determined as the percentage of participants with confirmed post-baseline positive ADAs relative to the total number of participants that had at least one post-baseline sample available for ADA analysis.
First dose up to last dose (Baseline up to until maximum 5 years)
Part 2: Percentage of Participants With Adverse Events Leading to Discontinuation of Treatment
Percentage of participants with adverse events leading to discontinuation from treatment were reported.
First dose up to 4 weeks after the last dose in OLE (Up to approximately 249 weeks)
Secondary Outcomes (10)
Part 1: Percentage of Participants With AEs, SAEs
First dose up to last dose (Up to approximately 152 weeks)
Part 1: Percentage of Participants With Treatment Emergent ADAs
First dose up to last dose (Up to approximately 152 weeks)
Part 1: Gantenerumab Plasma Concentration at Multiple Timepoints
Pre-dose: Weeks 4, 8, 12, 24, 48, 72 and Post dose: Day 4
Part 1: Percentage of Participants With Adverse Events Leading to Discontinuation of Treatment
First dose up to last dose (Up to approximately 152 weeks)
Part 2: Percent Change From Baseline in Hippocampal Volume at Week 104
Baseline (Part 1 screening), Week 104
- +5 more secondary outcomes
Other Outcomes (22)
Part 1: Mean Change From Baseline in Alzheimer's Disease Activity Scale-Cognitive Subscale 13 (ADAS-Cog13) Scores at Week 104
Baseline, Week 104
Part 1: Mean Change From Baseline in Alzheimer's Disease Cooperative Study-Activities of Daily Living (ADCS-ADL) Scores at Week 104
Baseline, Week 104
Part 1: Percentage Change From Baseline in Total Tau (T-tau) in CSF at Week 104
Baseline, Week 104
- +19 more other outcomes
Study Arms (4)
Part 1 (Double Blind treatment): Placebo
PLACEBO COMPARATORParticipants received matching placebo by subcutaneous (SC) injection every 4 weeks (Q4W) up to 100 weeks during Part 1 of the study.
Part 1 (Double Blind treatment): Gantenerumab
EXPERIMENTALParticipants received 105 mg Gantenerumab by SC injection Q4W for 24 weeks and if eligible 225 mg SC injection Q4W from weeks 28-100 during Part 1 of the study.
Part 2 (Open-Label Extension [OLE] treatment): Placebo switched to Gantenerumab Up to 1200 mg
PLACEBO COMPARATORParticipants who had received Placebo in Part 1, received Gantenerumab at doses up to 1200 mg by SC injection Q4W for up to 2 years. Additionally, participants were given the option to continue receiving open-label gantenerumab treatment for 3 years.
Part 2 (OLE treatment): Gantenerumab up to 1200 mg
EXPERIMENTALParticipants who had received Gantenerumab in Part 1, received treatment at doses up to 1200 mg by SC injection Q4W for up to 2 years. Additionally, participants were given the option to continue receiving open-label gantenerumab treatment for 3 years.
Interventions
Participants received Placebo SC injection Q4W.
Participants received Gantenerumab at 105 mg , 225 mg, or at doses up to 1200 mg SC injection Q4W.
Eligibility Criteria
You may qualify if:
- Clinical diagnosis of probable mild Alzheimer disease (AD) based on National Institute of Neurological and Communicative Disorders and Stroke/Alzheimer's Disease and Related Disorders Association (NINCDS/ADRDA) criteria or major NCD based whether or not receiving AD approved medication
- Cerebral spinal fluid (CSF) result consistent with the presence of amyloid pathology
- Availability of a person ('caregiver') who in the investigator's judgment has frequent and sufficient contact with the participant, and is able to provide accurate information regarding the participant's cognitive and functional abilities
- Fluency in the language of the tests used at the study site
- Willingness and ability to complete all aspects of the study
- Adequate visual and auditory acuity, in the investigator's judgment, sufficient to perform the neuropsychological testing (eye glasses and hearing aids are permitted)
- If currently receiving approved medications for AD, the dosing regimen must have been stable for 3 months prior to screening
- Agreement not to participate in other research studies for the duration of this trial and its associated substudies
- PART 2 - All participants who have been randomized and are actively participating in the study are eligible for Part 2
You may not qualify if:
- Dementia or neurocognitive disorder (NCD) due to a condition other than AD, including, but not limited to, frontotemporal dementia, Parkinson disease, dementia with Lewy bodies, Huntington disease, or vascular dementia
- History or presence of clinically evident vascular disease potentially affecting the brain that in the opinion of the investigator has the potential to affect cognitive function
- History or presence of stroke within the past 2 years or documented history of transient ischemic attack within the last 12 months
- History or presence of systemic autoimmune disorders potentially causing progressive neurologic disease with associated cognitive deficits
- History of schizophrenia, schizoaffective disorder, or bipolar disorder
- Alcohol and/or substance use disorder (according to the DSM-5) within the past 2 years (nicotine use is allowed)
- History or presence of atrial fibrillation
- Within the last 2 years, unstable or clinically significant cardiovascular disease (e.g., myocardial infarction, angina pectoris, cardiac failure New York Heart Association Class II or higher)
- Uncontrolled hypertension
- Chronic kidney disease
- Impaired hepatic function
- PET imaging substudy, in addition to above:
- \- Prior participation in other research study or clinical care within the last year such that the total radiation exposure would exceed the local or national annual limits
- Part 2 Participants who have been discontinued from the study
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (131)
Banner Sun Health Research Insitute
Sun City, Arizona, 85351, United States
Territory Neurology and Research Institute
Tucson, Arizona, 85704, United States
ATP Clinical Research, Inc
Costa Mesa, California, 92626, United States
Pacific Research Network - PRN
San Diego, California, 92103, United States
California Neuroscience Research Medical Group, Inc
Sherman Oaks, California, 91403, United States
Meridien Research
Brooksville, Florida, 34601, United States
Brain Matters Research, Inc.
Delray Beach, Florida, 33445, United States
Neuropsychiatric Research; Center of Southwest Florida
Fort Myers, Florida, 33912, United States
Miami Jewish Health Systems; Clinical Research
Miami, Florida, 33137, United States
Accelerated Enrollment Solutions
Orlando, Florida, 32806, United States
University of South Florida
Tampa, Florida, 33613-4706, United States
Alzheimer's Research and Treatment Center
Wellington, Florida, 33414, United States
Indiana University
Indianapolis, Indiana, 46202, United States
Pennington Biomedical Research Center
Baton Rouge, Louisiana, 70808, United States
Louisiana Research Associates
New Orleans, Louisiana, 70114, United States
Western Michigan University Homer Stryker M.D. School of Medicine Center for Clinical Research
Kalamazoo, Michigan, 49008, United States
Millennium Psychiatric Associates, LLC
St Louis, Missouri, 63132, United States
Alzheimer's Research Corporation
Paterson, New Jersey, 08759, United States
Ocean Rheumatology
Toms River, New Jersey, 08775, United States
Nathan Kline Institute
Orangeburg, New York, 10962, United States
Richmond Behavioral Associates
Staten Island, New York, 10312, United States
Alzheimer's Memory Center
Matthews, North Carolina, 28105, United States
Richard H Weisler, MD
Raleigh, North Carolina, 27609, United States
Central States Research
Tulsa, Oklahoma, 74136, United States
Abington Neurological Associates
Abington, Pennsylvania, 19001, United States
Northeastern Pennsylvania Memory
Plains, Pennsylvania, 18705, United States
Rhode Island Mood & Memory Research Institute
East Providence, Rhode Island, 02914, United States
Neurology Clinic PC
Cordova, Tennessee, 38018, United States
Senior Adults Specialty Research
Austin, Texas, 78757, United States
University of Utah, Center for Alzheimer's Care Imaging & Research
Salt Lake City, Utah, 84108, United States
Instituto Neurologia Bs As
Ciudad Autonoma Buenos Aires, C1426ANZ, Argentina
Royal Adelaide Hospital; Memory Trials Centre
Adelaide, South Australia, 5000, Australia
The Queen Elizabeth Hospital; Neurology
Woodville, South Australia, 5011, Australia
Heidelberg Repatriation Hospital; Medical and Cognitive Research Centre
Heidelberg West, Victoria, 3081, Australia
Australian Alzheimer's Research Foundation
Nedlands, Western Australia, 6009, Australia
Cliniques Universitaires St-Luc
Brussels, 1200, Belgium
UZ Leuven Gasthuisberg
Leuven, 3000, Belgium
Shat Np Sveti Naum; 3Rd Clinic of Neurology
Sofia, 1113, Bulgaria
MBAL St. Marina; First Neurology Department
Varna, 9010, Bulgaria
University of Calgary; Heritage Medical Research Clinic
Calgary, Alberta, T2N 4Z6, Canada
True North Clinical Research-Halifax
Halifax, Nova Scotia, B3S 1N2, Canada
True North Clinical Research
New Minas, Nova Scotia, B4N 3R7, Canada
Jbn Medical Diagnostic Services Inc.
Burlington, Ontario, L7M 4Y1, Canada
Parkwood Hospital; Geriatric Medicine
London, Ontario, N6C 5J1, Canada
Kawartha Centre - Redefining Healthy Aging
Peterborough, Ontario, K9H 2P4, Canada
Toronto Memory Program
Toronto, Ontario, M3B 2S7, Canada
Sunnybrook Health Sciences Centre
Toronto, Ontario, M4N 3M5, Canada
Recherches Neuro-Hippocame
Gatineau, Quebec, J8T 8J1, Canada
NeuroSearch Developpements inc
Greenfield Park, Quebec, J4V 2J2, Canada
Jewish General Hospital / McGill University
Montreal, Quebec, H3T 1E2, Canada
Centre Hospitalier Affilie Universitaire de Quebec - Hopital de L'Enfant Jesus
Québec, Quebec, G1J 1Z4, Canada
McGill Univeristy; Douglas Mental Health University Institute; Neurological and Psychiatric
Verdun, Quebec, H4H 1R3, Canada
Alpha Recherche Clinique
Québec, G3K 2P8, Canada
Aarhus Universitetshospital, Neurologisk Afdeling F, Demensklinikken
Aarhus N, 8200, Denmark
Rigshospitalet, Hukommelsesklinikken
Koebenhavn Oe, 2100, Denmark
University of Eastern Finland
Kuopio, 70210, Finland
CRST Oy
Turku, 20520, Finland
Hopital Pellegrin; Cmrr Aquitaine
Bordeaux, 33076, France
Hopital Pierre Wertheimer; Laboratoire De Neuro Psychologie
Bron, 69677, France
CHU de Limoges Hopital Dupuytren; Service de Medecine Geriatrique
Limoges, 87042, France
CHU de la Timone - Hopital d Adultes; Service de Neurologie
Marseille, 13005, France
CHU Rennes - hopital Hotel Dieu; Consultation Memoire - Gerontologie
Rennes, 35064, France
Hopital Hautepierre; Centre dInvestigation Clinique
Strasbourg, 67098, France
Hopital la Grave; Gerontopole - Centre de Recherche Clinique
Toulouse, 31059, France
ECRC Experimental and Clinical Research Center, Charité Campus Berlin Buch, Memory Clinic
Berlin, 13125, Germany
PANAKEIA - Arzneimittelforschung Leipzig GmbH
Leipzig, 04275, Germany
Pharmakologisches Studienzentrum
Mittweida, 09648, Germany
Neurologische Praxis Dr. Andrej Pauls
München, 80331, Germany
Klinikum rechts der Isar der TU München; Klinikapotheke
München, 81675, Germany
Universitätsklinikum Ulm; Klinik für Neurologie
Ulm, 89081, Germany
Studienzentrum Nordwest, Dr. med. Joachim Springub / Herr Wolfgang Schwarz
Westerstede, 26655, Germany
Semmelweis University; Department of Neurology
Budapest, 1083, Hungary
Nuovo Ospedale Civile S. Agostino-Estense; Clinica Neurologica - Dipartimento di Neuroscienze
Modena, Emilia-Romagna, 41126, Italy
Azienda Ospedaliera Universitaria Policlinico Tor Vergata; Neurologia
Rome, Lazio, 00133, Italy
Umberto I Policlinico di Roma-Università di Roma La Sapienza
Rome, Lazio, 00185, Italy
IRCCS "Centro S. Giovanni di Dio" Fatebenefratelli -UO Alzheimer
Brescia, Lombardy, 25125, Italy
Irccs Multimedica Santa Maria; Unita' Di Neurologia
Castellanza, Lombardy, 21053, Italy
ASST DI MONZA; Neurologia
Monza, Lombardy, 20900, Italy
A.O. Universitaria Pisana; Neurologia
Pisa, Tuscany, 56126, Italy
Medical Corporation Hakuyokai Kashiwado Hospital
Chiba, 260-8656, Japan
National Hospital Organization Chiba-east Hospital; Neurology
Chiba, 260-8712, Japan
Juntendo University Urayasu Hospital; Neurology
Chiba, 279-0021, Japan
Fukuoka University Hospital; Neurology and Health Care
Fukuoka, 814-0180, Japan
Maebashi Red Cross Hospital; Neurology
Gunma, 371-0014, Japan
National Hospital Organization Hiroshima-Nishi Medical Center
Hiroshima, 739-0696, Japan
Hyogo Brain and Heart Center at Himeji; Department of Aging Brain and Cognitive Disorders
Hyōgo, 670-0981, Japan
Shonan Kamakura General Hospital; Neurology
Kanagawa, 247-8533, Japan
Kurashiki Heisei Hospital; Neurology
Okayama, 710-0826, Japan
Oita University Hospital; Neurology
Ōita, 879-5593, Japan
Shizuoka City Shimizu Hospital; Neurology
Shizuoka, 424-0911, Japan
Brain Research Center B.V
Amsterdam, 1081 GN, Netherlands
Erasmus Mc - Locatie Centrum; Dept of Neurology
Rotterdam, 3015 GD, Netherlands
Hospital Prof. Dr. Fernando Fonseca; Servico de Neurologia
Amadora, 2720-276, Portugal
Hospital de Santa Maria; Servico de Neurologia
Lisbon, 1649-035, Portugal
State Autonomous Healthcare Institution "Republican Clinical Neurological Center
Kazan', 420021, Russia
State autonomous institution of healthcare Inter-regional clinical and diagnostic center
Kazan', 420101, Russia
Institution of RAMS (Mental Health Research Center of RAMS)
Moscow, 115522, Russia
SBEI of HPI The 1st Moscow State Medical University n.a. I.M. Sechenov of MOH of RF
Moscow, 119021, Russia
Saint Petersburg State Institution of Healthcare City Geriatric Medico-Social Center
Saint Petersburg, 190103, Russia
Russian Medical Military Academy n.a. S.M.Kirov; Neurology Department
Saint Petersburg, 194044, Russia
City Clinical Hospital # 2 n.a. V.I. Razumovsky
Saratov, 410028, Russia
Dong-A University Medical Center
Busan, 602-715, South Korea
Seoul National University Bundang Hospital; Neurology Department
Gyeonggi-do, 13620, South Korea
Inha University Hospital; Neurology Department
Incheon, 22332, South Korea
Konkuk University Medical Center
Seoul, 05030, South Korea
Samsung Medical Center
Seoul, 06351, South Korea
Ewha Womans University Hospital (Seoul)
Seoul, 07804, South Korea
The Catholic University of Korea, Seoul St. Mary's Hospital
Seoul, 137-701, South Korea
Asan Medical Center.
Seoul, 138-736, South Korea
Ewha Womans University Mokdong Hospital; Dept of Neurology
Seoul, 158-710, South Korea
Hospital General Universitario de Elche; Servicio de Neurología
Elche, Alicante, 03203, Spain
Fundació ACE
BArcelon, Barcelona, 08034, Spain
Policlínica Guipuzkoa; Servicio de Neurología
Donosti-San Sebastián, Guipuzcoa, 20014, Spain
Hospital de Cruces; Servicio de Neurologia
Barakaldo, Vizcaya, 48903, Spain
Hospital del Mar; Servicio de Neurologia
Barcelona, 08003, Spain
Hospital Universitario 12 de Octubre; Servicio de Neurologia
Madrid, 28041, Spain
Hospital Universitario Virgen Macarena; Servicio de Neurologia
Seville, 41009, Spain
Hospital Universitari i Politecnic La Fe
Valencia, 46026, Spain
Skånes Universitetssjukhus Malmö, Minneskliniken
Malmo, 211 46, Sweden
KAROLINSKA UNI HOSPITAL, HUDDINGE; Mottagning Kognitiv Forskning, M54
Stockholm, 141 86, Sweden
Felix Platter-Spital Medizin Geriatrie
Basel, 4002, Switzerland
CHUV Lausanne Memory clinique
Lausanne, 1011, Switzerland
Istanbul University Istanbul School of Medicine; Neurology
Istanbul, 34093, Turkey (Türkiye)
Dokuz Eylul University Medicine Faculty; Noroloji Departmani
Izmir, 35340, Turkey (Türkiye)
Ondokuz Mayis University School of Medicine; Neurology
Samsun, 55139, Turkey (Türkiye)
Sussex Partnership NHS Foundation Trust; Cognitive Treatment and Research unit
Crowborough, TN6 1HB, United Kingdom
Glasgow Memory Clinic
Glasgow, G20 0XA, United Kingdom
Charing Cross Hospital; Dept of Neurosciences
London, W6 8RF, United Kingdom
Manchester Royal Infirmary
Manchester, M13 9WL, United Kingdom
Royal Preston Hosptial
Preston, PR2 9HT, United Kingdom
Memory Service North
Sheffield, S35 8QS, United Kingdom
Related Publications (1)
Klein G, Delmar P, Voyle N, Rehal S, Hofmann C, Abi-Saab D, Andjelkovic M, Ristic S, Wang G, Bateman R, Kerchner GA, Baudler M, Fontoura P, Doody R. Gantenerumab reduces amyloid-beta plaques in patients with prodromal to moderate Alzheimer's disease: a PET substudy interim analysis. Alzheimers Res Ther. 2019 Dec 12;11(1):101. doi: 10.1186/s13195-019-0559-z.
PMID: 31831056DERIVED
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Limitations and Caveats
As the participants transitioned early to OLE, most participants did not reach the primary analysis timepoint (Week 104). Hence, the efficacy endpoints for Part 1 became exploratory in nature.
Results Point of Contact
- Title
- Medical Communications
- Organization
- Hoffmann-La Roche
Study Officials
- STUDY DIRECTOR
Clinical Trials
Hoffmann-La Roche
Publication Agreements
- PI is Sponsor Employee
- No
- Restriction Type
- OTHER
- Restrictive Agreement
- Yes
Study Design
- Study Type
- interventional
- Phase
- phase 3
- Allocation
- RANDOMIZED
- Masking
- DOUBLE
- Who Masked
- PARTICIPANT, INVESTIGATOR
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- INDUSTRY
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
January 30, 2014
First Posted
January 31, 2014
Study Start
March 27, 2014
Primary Completion
April 16, 2021
Study Completion
April 16, 2021
Last Updated
February 10, 2023
Results First Posted
June 16, 2022
Record last verified: 2023-02