NCT01561053

Brief Summary

The purpose of this study is to evaluate the changes in the cognitive, functional, behavioral and global domains based on the different applicable psychometric batteries and scales.

Trial Health

90
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
347

participants targeted

Target at P75+ for phase_2

Timeline
Completed

Started Apr 2012

Longer than P75 for phase_2

Geographic Reach
2 countries

40 active sites

Status
completed

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

March 16, 2012

Completed
6 days until next milestone

First Posted

Study publicly available on registry

March 22, 2012

Completed
28 days until next milestone

Study Start

First participant enrolled

April 19, 2012

Completed
5.9 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

March 6, 2018

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

March 6, 2018

Completed
1.4 years until next milestone

Results Posted

Study results publicly available

July 31, 2019

Completed
Last Updated

July 31, 2019

Status Verified

July 1, 2019

Enrollment Period

5.9 years

First QC Date

March 16, 2012

Results QC Date

May 13, 2019

Last Update Submit

July 10, 2019

Conditions

Keywords

Alzheimer's diseaseAmyloid Beta (AB) peptideAlbuminIntravenous immunoglobulinIVIG

Outcome Measures

Primary Outcomes (2)

  • Alzheimer's Disease Assessment Scale - Cognitive Subscale (ADAS-Cog) Total Score (Changes From Baseline to 14 Months)

    ADAS-Cog total score as a change from baseline to 14 months The ADAS-Cog Scale is a questionnaire that assesses cognitive performance in 12 different domains. The domains are: word recall, commands, constructional praxis, delayed word-recall task, naming objects/figures, ideational praxis, orientation, word recognition, remembering test instructions, comprehension, word finding difficulty, and spoken language ability. The total score ranges from 0-80 where a higher score indicates more cognitive impairment.

    Baseline and 14 months

  • Alzheimer's Disease Cooperative Study-Activities of Daily Living (ADCS-ADL) Total Score (Changes From Baseline to 14 Months)

    ADCS-ADL total score as a change from baseline to 14 months The ADCS-ADL comprises 23 questions covering a wide array of activities of daily living. Many of the activities begin with an assessment of whether that activity is relevant and then, if yes, follow with an assessment of the difficulty. The total score over all activities ranges from 0-78 where a higher score indicates more autonomy (better outcome).

    Baseline and 14 Months

Other Outcomes (4)

  • ADAS-Cog Total Score (Changes From Baseline to 14 Months) in Patients With Baseline MMSE:22-26

    Baseline and 14 months

  • ADCS-ADL Total Score (Changes From Baseline to 14 Months) in Patients With Baseline MMSE:22-26

    Baseline and 14 months

  • ADAS-Cog Total Score (Changes From Baseline to 14 Months) in Patients With Baseline MMSE:18-21

    Baseline and 14 months

  • +1 more other outcomes

Study Arms (4)

High Albumin + Immunoglobulin

EXPERIMENTAL

Therapeutic plasma exchange with albumin 5% (intensive treatment period) + Low volume plasma exchange with high dose of albumin 20% or immunoglobulin 5% (maintenance treatment period)

Biological: Albumin 5%Biological: Albumin 20%Biological: Immunoglobulin

Low Albumin + Immunoglobulin

EXPERIMENTAL

Therapeutic plasma exchange with albumin 5% (intensive treatment period) + Low volume plasma exchange with low dose of albumin 20% or immunoglobulin 5% (maintenance treatment period)

Biological: Albumin 5%Biological: Albumin 20%Biological: Immunoglobulin

Low Albumin

EXPERIMENTAL

Therapeutic plasma exchange with albumin 5% (intensive treatment period) + Low volume plasma exchange with low dose of albumin 20% (maintenance treatment period)

Biological: Albumin 5%Biological: Albumin 20%

Control (sham) group

NO INTERVENTION

Simulated plasma exchange procedure

Interventions

Albumin 5%BIOLOGICAL

Therapeutic plasma exchange with human albumin 5%

Also known as: Albutein® 5%, Human Albumin Grifols 5%
High Albumin + ImmunoglobulinLow AlbuminLow Albumin + Immunoglobulin
Albumin 20%BIOLOGICAL

Low volume plasma exchange with human albumin 5%

Also known as: Albutein® 20%, Human Albumin Grifols 20%
High Albumin + ImmunoglobulinLow AlbuminLow Albumin + Immunoglobulin
ImmunoglobulinBIOLOGICAL

Intravenous human immunoglobulin 5%

Also known as: Flebogamma® 5% DIF
High Albumin + ImmunoglobulinLow Albumin + Immunoglobulin

Eligibility Criteria

Age55 Years - 85 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Males or females between 55-85 years of age at the time of signing of the informed consent document.
  • A diagnosis of Alzheimer's disease (NINCDS-ADRDA criterion), and mini-mental status examination (MMSE) score between \>/=18 and \</=26.
  • Current stable treatment with acetylcholine esterase inhibitors (AChEIs) and/or memantine for the previous three months.
  • The patient and a close relative or the legal representative must read the patient information sheet, agree to participation in the trial, and then sign the informed consent document (the patient personally and the close relative/legal representative).
  • The patient must be able to follow the study protocol, receive the treatment in the established time period, and continue during the follow-up interval.
  • A brain computed axial tomography (CAT) or magnetic resonance imaging (MRI) study, obtained in the 12 months prior to recruitment, showing the absence of cerebrovascular disease, should be available. Nevertheless, it is mandatory to use the MRI obtained during the screening period to rule out any cerebrovascular disease.
  • A stable care taker must be available, and must attend the patient study visits.

You may not qualify if:

  • Any contraindication for plasma exchange due to behavioral disorders or abnormal coagulation parameters, such as for example:
  • Hypocalcemia (Ca++ \< 8.7 mg/dL)
  • Thrombocytopenia (\<100,000/µL)
  • Fibrinogen \<1.5 g/L
  • Prothrombin time (Quick) p\<60% versus control (international normalized ratio (INR) \>1.5)
  • Beta-blocker treatment and bradycardia \<55/min
  • Treatment with angiotension-converting enzyme inhibitors (ACEIs) (increased risk of allergic reactions)
  • Hemoglobin \< 10 g/dL
  • Difficult venous access precluding plasma exchange.
  • A history of frequent adverse reactions (serious or otherwise) to blood products.
  • Hypersensitivity to albumin or allergies to any of the components of Albutein.
  • History of immunoglobulin A (IgA) deficiency.
  • Known allergies to Flebogamma DIF components such as sorbitol.
  • History of thromboembolic complications of intravenous immunoglobulins.
  • Plasma creatinine \> 2 mg/dl.
  • +8 more criteria

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (40)

Northern California Research

Sacramento, California, 95821, United States

Location

Mountain View Clinical Research, Inc

Denver, Colorado, 80209, United States

Location

Howard University

Washington D.C., District of Columbia, 20059, United States

Location

Bradenton Research Center, Inc.

Bradenton, Florida, 34205, United States

Location

Quantum Laboratories

Deerfield Beach, Florida, 33064, United States

Location

Galiz Research, LLC

Hialeah, Florida, 33016, United States

Location

Largo Medical Center

Largo, Florida, 33770, United States

Location

L&L Research Choices, Inc

Miami, Florida, 33144, United States

Location

Allied Biomedical Research Institute

Miami, Florida, 33155, United States

Location

Miami Dade Medical Research Institute, LLC

Miami, Florida, 33176, United States

Location

Neurology Associates of Osmond Beach

Ormond Beach, Florida, 32174, United States

Location

PharmaSeek LLC (DMI Research)

Pinellas Park, Florida, 33782, United States

Location

iResearch Atlanta, LLC

Decatur, Georgia, 30030, United States

Location

RTR Medical Group

Savannah, Georgia, 31419, United States

Location

Dartmouth-Hitchcock Medical Center

Lebanon, New Hampshire, 03756, United States

Location

The NeuroCognitive Institute

Mount Arlington, New Jersey, 08756, United States

Location

Mid-Atlantic Geriatric/ARC

Paterson, New Jersey, 08759, United States

Location

The Cleveland Clinic Foundation

Cleveland, Ohio, 44195, United States

Location

Neurology Specialists Inc

Dayton, Ohio, 45417, United States

Location

University of Pittsburgh Medical Center

Pittsburgh, Pennsylvania, 15213, United States

Location

Roper St. Francis Healthcare

Charleston, South Carolina, 29401, United States

Location

Wesley Neurology Clinic

Cordova, Tennessee, 38018, United States

Location

Hospital General de Elche

Elche, Alicante, 03203, Spain

Location

Hospital Universitario del Vinalopó

Elche, Alicante, 03293, Spain

Location

Hospital Universitari de Bellvitge

L'Hospitalet de Llobregat, Barcelona, 08907, Spain

Location

Hospital General de Catalunya

Sant Cugat del Vallès, Barcelona, 08190, Spain

Location

Hospital Universitari Mútua de Terrassa

Terrassa, Barcelona, 08221, Spain

Location

Hospital Universitario Nuestra Señora de Candelaria

Santa Cruz de Tenerife, Canary Islands, 38010, Spain

Location

Hospital Universitario de Getafe

Getafe, Madrid, 28905, Spain

Location

Fundació ACE

Barcelona, 08028, Spain

Location

Hospital Vall d'Hebrón

Barcelona, 08035, Spain

Location

Hospital de la Santa Creu i Sant Pau

Barcelona, 08041, Spain

Location

Hospital Universitario de Burgos

Burgos, 09005, Spain

Location

Parc Hospitalari Martí i Julià

Girona, 17190, Spain

Location

Hospital Universitari de Santa Maria

Lleida, 25198, Spain

Location

Hospital General Universitario Gregorio Marañón

Madrid, 28007, Spain

Location

Hospital Clínico San Carlos

Madrid, 28040, Spain

Location

Hospital Universitario Doctor Peset

Valencia, 46017, Spain

Location

Hospital Universitario y Politécnico La Fe

Valencia, 46026, Spain

Location

Hospital Viamed Montecanal

Zaragoza, 50012, Spain

Location

Related Publications (2)

  • Podger L, Stewart WF, Serrano D, Lipton RB, Gomez-Ulloa D, Ayasse ND, Barnes FB, Davis EA, Runken MC. Application of a Novel Endpoint Staging Framework: Proof of Concept in the AMBAR Study. J Alzheimers Dis. 2024;98(3):1079-1094. doi: 10.3233/JAD-231197.

  • Cuberas-Borros G, Roca I, Castell-Conesa J, Nunez L, Boada M, Lopez OL, Grifols C, Barcelo M, Pareto D, Paez A. Neuroimaging analyses from a randomized, controlled study to evaluate plasma exchange with albumin replacement in mild-to-moderate Alzheimer's disease: additional results from the AMBAR study. Eur J Nucl Med Mol Imaging. 2022 Nov;49(13):4589-4600. doi: 10.1007/s00259-022-05915-5. Epub 2022 Jul 22.

MeSH Terms

Conditions

Alzheimer DiseasePlaque, Amyloid

Interventions

zidovudine 5'-monophosphate-mannose-albumin conjugategalactosamine-conjugated serum albumin-conjugated-(rhodamine X)20Immunoglobulinsgamma-Globulins

Condition Hierarchy (Ancestors)

DementiaBrain DiseasesCentral Nervous System DiseasesNervous System DiseasesTauopathiesNeurodegenerative DiseasesNeurocognitive DisordersMental DisordersPathological Conditions, AnatomicalPathological Conditions, Signs and Symptoms

Intervention Hierarchy (Ancestors)

ImmunoproteinsBlood ProteinsProteinsAmino Acids, Peptides, and ProteinsSerum GlobulinsGlobulins

Results Point of Contact

Title
AMBAR clinical manager
Organization
Grifols

Study Officials

  • Merce Boada Rovira, MD, PhD

    Fundació ACE. Barcelona. Spain

    PRINCIPAL INVESTIGATOR
  • Antonio Páez, MD

    Instituto Grifols, S.A.

    STUDY CHAIR
  • Laura Núñez, BSc

    Instituto Grifols, S.A.

    STUDY DIRECTOR

Publication Agreements

PI is Sponsor Employee
No
Restriction Type
OTHER
Restrictive Agreement
Yes

Study Design

Study Type
interventional
Phase
phase 2
Allocation
RANDOMIZED
Masking
TRIPLE
Who Masked
PARTICIPANT, CARE PROVIDER, OUTCOMES ASSESSOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
INDUSTRY
Responsible Party
SPONSOR

Study Record Dates

First Submitted

March 16, 2012

First Posted

March 22, 2012

Study Start

April 19, 2012

Primary Completion

March 6, 2018

Study Completion

March 6, 2018

Last Updated

July 31, 2019

Results First Posted

July 31, 2019

Record last verified: 2019-07

Locations