Valproate in Dementia (VALID)

NCT ID: NCT00071721

Last Updated: 2014-09-25

Basic Information

• Recruitment Status: COMPLETED
• Clinical Phase: PHASE3
• Total Enrollment: 313 participants
• Study Classification: INTERVENTIONAL
• Study Start Date: 2003-10-31
• Study Completion Date: 2009-12-31

Brief Summary

The purpose of this trial is to demonstrate whether valproate therapy delays the emergence of agitation and/or psychosis in outpatients with probable Alzheimer's disease (AD) who have not experienced agitation and psychosis in their illness. A secondary aim is to determine whether valproate therapy delays the progression of cognitive and functional measures of the illness. This trial will also assess the tolerability and safety of low-dose, long-term valproate therapy. Valproate, an anticonvulsant drug, was selected because of its possible symptomatic efficacy for agitation in AD, known safety profile in numerous clinical populations, and in view of recent data supporting its neuroprotective potential in AD.

Detailed Description

This study represents a novel clinical trial strategy designed to assess both prospective "prophylactic" therapy for psychopathology in Alzheimer's disease (AD) and to assess an approach that may alter several aspects of the pathophysiology of AD, and perhaps result in alteration of clinical progression of illness. Interpretation of these results will be supported by study of relevant biomarkers and imaging data. Valproate was selected because of its possible symptomatic efficacy for agitation in AD, known safety profile in numerous clinical populations, and in view of recent data supporting its neuroprotective potential in AD. The primary hypothesis is that chronic valproate administration to participants with AD who lack agitation and psychosis at baseline will delay the emergence of agitation and/or psychosis. An effect of this nature may have significant public health implications, for instance, by delaying institutionalization.

This is a randomized, placebo-controlled, double blind, multicenter 26-month trial of valproate therapy at a target dose of 10-12 mg/kg/day in 300 outpatients with mild to moderate Alzheimer's Disease (AD) who lack agitation and psychosis at baseline and since onset of illness. Participants will have regular clinic visits as well as telephone contacts for assessment of behavior, cognition, function, safety and tolerability. The chief secondary aim is to determine whether valproate administration to participants with AD will attenuate clinical progression of illness measured by a reduced rate of cognitive or functional decline. In addition, issues related to safety and tolerability with low-dose (10-12 mg/kg/day) therapy will be addressed. Biological specimens will be obtained to study markers selected for their relevance to the disease as well as the postulated mechanism of action of the valproate therapy. Magnetic resonance imaging (MRI) scans will be performed prior to experimental treatment and after one year in a subset of participants in order to address possible drug-placebo differences in brain volume measures.

Approximately 300 participants from 25-35 clinical trial centers in the United States will be enrolled. Participation will include men and women with a diagnosis of probable Alzheimer's disease, age 55 or older, weighing at least 40 kg (88.2 lbs.), residing in the community at baseline, Mini Mental State Examination (MMSE) 10-20 inclusive, who have not experienced agitation or psychosis since the onset of their illness and who do not require treatment with psychotropic medications with the exception of antidepressants used only for treatment of depressive symptoms and limited use of sedatives for sleep. Participants, their relatives, guardians or authorized representatives and informants will be given ample opportunity to inquire about details of the study. Informed consent forms covering consent for the trial itself as well as the genetic research and biological sample storage and MRI scans will be provided to protect the patient's rights and confidentiality.

Conditions

Alzheimer Disease

Study Design

• Allocation Method: RANDOMIZED
• Intervention Model: PARALLEL
• Primary Study Purpose: TREATMENT
• Blinding Strategy: QUADRUPLE

Study Groups

1

Group Type: EXPERIMENTAL

Valproate

Intervention Type: DRUG

250mg tablets beginning with one daily for one week, then two daily for one week, then titrated according to body weight and tolerability to achieve 10-12 mg/kg daily for 2 years, followed by a 2-month washout

2

Group Type: PLACEBO_COMPARATOR

Placebo

Intervention Type: DRUG

Placebo tablets beginning with one daily and increasing according to weight and perceived tolerability concerns for two years, followed by a 2-month washout

Interventions

Valproate

250mg tablets beginning with one daily for one week, then two daily for one week, then titrated according to body weight and tolerability to achieve 10-12 mg/kg daily for 2 years, followed by a 2-month washout

Intervention Type: DRUG

Placebo

Placebo tablets beginning with one daily and increasing according to weight and perceived tolerability concerns for two years, followed by a 2-month washout

Intervention Type: DRUG

Other Intervention Names

Depakene, Depakote

Eligibility Criteria

Inclusion Criteria

• Probable AD by National Institute of Neurological Disorders and Stroke (NINDS)-Alzheimer's Disease and Related Disorder Association (ADRDA) criteria.
• Males or females.
• > 55 and < 90 years of age.
• Weight > 40 kg (88.2 lbs.).
• Residing in the community at Screen and Baseline. Participants may reside in assisted living facilities, but not in long-term care nursing facilities or assisted living facilities that provide intensive support for people with dementia nor may they reside in a secure unit necessary for behavioral management.
• Mini Mental State Examination (MMSE) at Screen and Baseline 12-20 inclusive.
• Computed tomography (CT) or magnetic resonance imaging (MRI) since onset of dementia consistent with the diagnosis of probable AD. Single lacunes in non-critical areas and non-specific white matter changes that are interpreted as age-related are not grounds for exclusion. Any ambiguous scan results must be reviewed with the Project Director.
• Fluent in English or Spanish.
• Supervision available for study medication.
• Study partner to accompany subject to all visits.
• Study partner must have in-person contact with the participant > 2 days/week.
• Able to ingest oral medication.
• Total Neuropsychiatric Inventory (NPI) score for previous 4 weeks < 8 at Screening, and for the period between Screening and Baseline.
• NPI item score for the items assessing delusions, hallucinations, agitation/aggression all greater than or equal to 1 for 4 weeks prior to Screening (less than once/week and mild severity at most) and for the period between Screening and Baseline.
• Scores of greater than or equal to 1 for items rating delusions, hallucinations, and agitation/aggression taken from the NPI, modified to assess these features since onset of illness. This will be derived from a second interview with the modified NPI. (Agitation/psychosis during episodes of delirium are not considered exclusionary.).

Exclusion Criteria

Exceptions to these criteria may be considered on a case-by-case basis at the discretion of the Project Director:

• Non-AD dementia.
• Females of child-bearing potential.
• Residence in a long-term care facility or equivalent at Baseline.
• Presence or previous history of agitation or psychosis requiring active psychotropic medication since the illness began.
• History of clinically significant stroke.
• Current evidence or history in past two years of: focal brain lesion, head injury with loss of consciousness or Diagnostic and Statistical Manual of Mental Disorders, 4th Edition (DSM-IV) criteria for any major psychiatric disorder including psychosis, major depression, bipolar disorder, alcohol or substance abuse.
• Sensory impairment that would prevent subject from participating in or cooperating with the protocol.
• Medical contraindications to study participation.
• Use of another investigational agent within two months prior to Screening.
• Evidence of any significant clinical disorder or laboratory finding that renders the subject unsuitable for receiving an investigational new drug including clinically significant or unstable hematologic, hepatic, cardiovascular, pulmonary, gastrointestinal, endocrine, metabolic, renal, or other systemic disease or laboratory abnormality.
• Clinical contraindication to the use of valproate (e.g., known hypersensitivity or allergic reactions, severe neutropenia, severe hepatic disease, or urea cycle disorder. A urea cycle disorder should be considered in patients with history of unexplained encephalopathy following protein meals, or family history of urea cycle disorder).
• History of seizure within past 5 years prior to Screening.
• Platelet count < 100,000/mm^3.
• International Normalized Ratio (INR) > 1.2 or partial thromboplastin time (PTT) > 40 seconds.
• Active neoplastic disease. Exceptions: skin tumors other than melanoma are not excluded; patients with stable prostate cancer may be included at the discretion of the Project Director; women who have been treated for breast cancer and have no metastases and whose survival is expected to exceed 2 years may be considered for inclusion on a case-by-case basis in consultation with the Project Director; patients with purely localized bladder wall cancers may be included at the discretion of the Project Director.

Excluded Medications:

• Use of psychotropics for treatment of agitation or psychosis. Antidepressants used in stable doses for 3 months prior to Screening to treat depression or anxiety, but not agitation, will be permitted. Low dose sedatives for sleep, but not agitation, will be permitted. Cholinesterase inhibitors used in stable doses for at least 3 months prior to Screening are permitted.
• Regular use of narcotic analgesics within 3 months of Screening.
• Anti-parkinsonian medications (e.g. levodopa, selegiline, pergolide, bromocriptine, pramipexole) within 2 months of Screening.
• Use of drugs with significant central anticholinergic or antihistaminic effects (eg, benztropine, trihexyphenidyl, dicyclomine, diphenhydramine, cyproheptadine, diphenoxylate, hydroxyzine, meclizine, prochlorperazine, promethazine) within 2 months of Screening.
• Use of other investigational drug studies within two months prior to Screening.
• Use of other anticonvulsants within 5 years prior to Screening.
• Use of zidovudine at any time.
• Use of tricyclic antidepressants within 1 month prior to Screening.
• Regular use of high doses of salicylates at Screening (> 1,300 mg/d).
• Vitamin E > 2,100 IU/d within 1 month prior to Screening.
• Warfarin use is permitted when approved by the Project Director and INR and PTT criteria are met.

• Minimum Eligible Age: 55 Years
• Maximum Eligible Age: 90 Years
• Eligible Sex: ALL
• Accepts Healthy Volunteers: No

Sponsors

National Institute on Aging (NIA)

NIH

Sponsor Role: collaborator

Alzheimer's Disease Cooperative Study (ADCS)

OTHER

Sponsor Role: lead

Responsible Party

Responsibility Role: SPONSOR

Principal Investigators

Pierre Tariot, MD

Role: STUDY_DIRECTOR

University of Rochester Medical Center, Departments of Psychiatry, Medicine, and Neurology, and the Center for Aging and Developmental Biology

Locations

Sun Health Research Institute

Sun City, Arizona, United States

University of Arizona

Tucson, Arizona, United States

University of California, Irvine

Irvine, California, United States

University of California, ADRC, San Diego

La Jolla, California, United States

VA Healthcare System Long Beach

Long Beach, California, United States

University of Southern California

Los Angeles, California, United States

University of California ADRC

Los Angeles, California, United States

University of California, LA (Olive View)

Los Angeles, California, United States

Pacific Research Network

San Diego, California, United States

Stanford University, VA Aging Clinical Research Center

Stanford, California, United States

Yale University School of Medicine

New Haven, Connecticut, United States

Georgetown University Medical Center

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

Howard University

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

Mayo Clinic

Jacksonville, Florida, United States

Wein Center, Mount Sinai Medical Center

Miami, Florida, United States

University of South Florida

Tampa, Florida, United States

Byrd Institute

Tampa, Florida, United States

Premier Research Institute

West Palm Beach, Florida, United States

Emory University

Atlanta, Georgia, United States

Northwestern University

Chicago, Illinois, United States

Southern Illinois University

Springfield, Illinois, United States

Indiana University School of Medicine

Indianapolis, Indiana, United States

University of Kansas

Kansas City, Kansas, United States

Lahey Clinic, Research Neurology

Burlington, Massachusetts, United States

University of Michigan

Ann Arbor, Michigan, United States

Saint Mary's Health Care

Grand Rapids, Michigan, United States

St. Louis University

St Louis, Missouri, United States

University of Nevada

Las Vegas, Nevada, United States

Albany Medical Center

Albany, New York, United States

Dent Neurologic Institute

Amherst, New York, United States

New York University Medical Center

New York, New York, United States

Columbia University

New York, New York, United States

Global Research and Consulting

Olean, New York, United States

University of Rochester

Rochester, New York, United States

Syracuse VA Medical Center

Syracuse, New York, United States

North East Ohio Health Services

Beachwood, Ohio, United States

Case Western Reserve University, University Hospitals of Cleveland

Cleveland, Ohio, United States

University of Pennsylvania

Philadelphia, Pennsylvania, United States

Brown University, Memorial Hospital of Rhode Island

Providence, Rhode Island, United States

Medical University of South Carolina-Columbia

Columbia, South Carolina, United States

Medical University of South Carolina-Florence

Florence, South Carolina, United States

Medical University of South Carolina

North Charleston, South Carolina, United States

Psychiatric Consultants

Nashville, Tennessee, United States

University of Texas Southwestern Medical Center

Dallas, Texas, United States

Southwestern Vermont Medical Center

Bennington, Vermont, United States

University of Virginia

Charlottesville, Virginia, United States

Countries

United States

References

Tariot PN, Loy R, Ryan JM, Porsteinsson A, Ismail S. Mood stabilizers in Alzheimer's disease: symptomatic and neuroprotective rationales. Adv Drug Deliv Rev. 2002 Dec 7;54(12):1567-77. doi: 10.1016/s0169-409x(02)00153-9.

Reference Type: BACKGROUND

PMID: 12453674 (View on PubMed)

Manji HK, Moore GJ, Rajkowska G, Chen G. Neuroplasticity and cellular resilience in mood disorders. Mol Psychiatry. 2000 Nov;5(6):578-93. doi: 10.1038/sj.mp.4000811.

Reference Type: BACKGROUND

PMID: 11126389 (View on PubMed)

Chen G, Huang LD, Jiang YM, Manji HK. The mood-stabilizing agent valproate inhibits the activity of glycogen synthase kinase-3. J Neurochem. 1999 Mar;72(3):1327-30. doi: 10.1046/j.1471-4159.2000.0721327.x.

Reference Type: BACKGROUND

PMID: 10037507 (View on PubMed)

Tariot PN, Schneider LS, Cummings J, Thomas RG, Raman R, Jakimovich LJ, Loy R, Bartocci B, Fleisher A, Ismail MS, Porsteinsson A, Weiner M, Jack CR Jr, Thal L, Aisen PS; Alzheimer's Disease Cooperative Study Group. Chronic divalproex sodium to attenuate agitation and clinical progression of Alzheimer disease. Arch Gen Psychiatry. 2011 Aug;68(8):853-61. doi: 10.1001/archgenpsychiatry.2011.72.

Reference Type: DERIVED

PMID: 21810649 (View on PubMed)

Other Identifiers

1RC2AG036535

Identifier Type: NIH

Identifier Source: secondary_id

View Link

IND 67,222

Identifier Type: -

Identifier Source: secondary_id

ADCS Protocol ADC-022-VN

Identifier Type: -

Identifier Source: secondary_id

IA0043

Identifier Type: -

Identifier Source: org_study_id