Alzheimer's Disease-Clinical
Trials-Part XX
The following is a list of Web sites that offer information on taking part in clinical trials, some of which are of particularly involved with older individuals:
www.clinicaltrials.gov -Contains over 8,200 clinical studies sponsored by the National Institutes of Health, other federal agencies and the pharmaceutical industry.
www.centerwatch.com -Lists more than 41,000 trials, mainly those being done by the pharmaceutical industry.
www.cancer.gov/clinicaltrials -Click on "finding clinical trials" to access the National Cancer Institute's database of studies, along with links to sources.
(10/27/16)- We at therubins received the following request that is looking for qualified volunteers for a clinical trial that is seeking to find some answers in connection with Alzheimer’s disease:
“What if we could slow the progression of Alzheimer’s
disease with better sleep?
Recent research suggests there may be a link between sleep, cognitive
dysfunction, and Alzheimer’s disease. ReCOGNITION is
a research study testing whether an investigational medication, which has sleep
promoting effects, can help to slow cognitive deterioration, or improve
cognitive function.
We need people to participate in this research study who:
Are between 60 to 85 years of age
Have been diagnosed with mild dementia due to Alzheimer’s disease
Do not have an alternative cause for dementia other than Alzheimer’s disease
Have a caregiver who stays under the same roof at least 3 nights a week and is
willing to attend all study visits
Click here to find a site near you
Qualified participants will be seen by a doctor and receive all study-related
exams, care and medications at no cost. Compensation may be available. This
study is sponsored by Neurim Pharmaceuticals (1991) Ltd.”
(10/28/13)- Government officials announced a $33.2 million grant as part of its national Alzheimer’s plan that will help finance a clinical trial to test a treatment on people 60 to 75 years of age who have no symptoms of the disease, but do have two copies of a gene known to greatly increase the risk of getting the disease.
The project will be led by Dr. Eric M Reiman and
Dr. Pierre N. Tariot of the Banner Alzheimer’s
Institute in Phoenix, Az. The clinical trial will take place mostly in the
United
States on 650 patients who have two copies of the gene ApoE4.
Studies have shown that more than half the people with two ApoE4 genes will develop Alzheimer’s, compared with about one-fourth of people with one copy and 10 percent
(10/27/13)- A protein that is
increased by endurance exercise has been isolated and given to non-exercising
mice, in which it turned on genes that promote brain health and encourage the
growth of new nerves involved in learning and memory, report scientists from
the Dana-Farber Cancer Institute and Harvard Medical School.
The
findings, reported in the journal Cell Metabolism, help explain the well-known
capacity of endurance exercise to improve cognitive function, particularly in
older people. If the protein can be made in a stable form and developed into a
drug, it might lead to improved therapies for cognitive decline in older people
and slow the toll of neurodegenerative diseases such Alzheimer's and
Parkinson's, according to the investigators.
"What
is exciting is that a natural substance can be given in the bloodstream that
can mimic some of the effects of endurance exercise on the brain," said
Bruce Spiegelman, PhD, of Dana-Farber and HMS. He is co-senior author of the
publication with Michael E. Greenberg, PhD, chair of neurobiology at HMS.
The
Spiegelman group previously reported that the protein, called FNDC5, is
produced by muscular exertion and is released into the bloodstream as a variant
called irisin. In the new research, endurance
exercise -- mice voluntarily running on a wheel for 30 days -- increased the
activity of a metabolic regulatory molecule, PGC-1α, in muscles, which
spurred a rise in FNDC5 protein. The increase of FNDC5 in turn boosted the
expression of a brain-health protein, BDNF (brain-derived neurotrophic protein)
in the dentate gyrus of the hippocampus, a part of the brain involved in
learning and memory.
It has
been found that exercise stimulates BDNF in the hippocampus, one of only two
areas of the adult brain that can generate new nerve cells. BDNF promotes
development of new nerves and synapses -- connections between nerves that allow
learning and memory to be stored -- and helps preserve the survival of brain
cells.
How
exercise raises BDNF activity in the brain wasn't known; the new findings
linking exercise, PGC-1α, FNDC5 and BDNF provide a molecular pathway for
the effect, although Spiegelman and his colleagues suggest there are probably
others.
Having
shown that FNDC5 is a molecular link between exercise and increased BDNF in the
brain, the scientists asked whether artificially increasing FNDC5 in the
absence of exercise would have the same effect. They used a harmless virus to
deliver the protein to mice through the bloodstream, in hopes the FNDC5 could
reach the brain and raise BDNF activity. Seven days later, they examined the
mouse brains and observed a significant increase in BDNF in the hippocampus.
"Perhaps
the most exciting result overall is that peripheral deliver of FNDC5 with
adenoviral vectors is sufficient to induce central expression of Bdnf and other genes with potential neuroprotective
functions or those involved in learning and memory," the authors said.
Spiegelman cautioned that further research is needed to determine whether
giving FNDC5 actually improves cognitive function in the animals. The
scientists also aren't sure whether the protein that got into the brain is
FNDC5 itself, or irisin, or perhaps another variant
of the protein.
Spiegelman
said that development of irisin as a drug will
require creating a more stable form of the protein.
(4/12/13)- The conclusion of a study of the cost of dementia conducted by the Rand Corporation was that it was costing between $157 billion and $215 billion a year in medical care and other costs, such as lost wages for caregivers.
The results of the study were published in a recent edition of the New England Journal of Medicine. The researchers examined a group of more than 10,000 adults age 71 and older who were enrolled in a large national representative study called the Health and Retirement Study. It was estimated that 14.7% of those in the sample were afflicted with dementia.
The Alzheimer Association estimates that there are presently 5.4 million American who are suffering from this malady.
The direct medical cost of treating dementia is estimated at $109 billion in 2010, compared to $102 billion for those who suffer from heart disease and $72 billion for those with cancer.
(2/7/13)- According to the U.S. National Institutes of Health's ClinicalTrials.gov website, there are currently 139,372 clinical studies being conducted throughout 182 countries as of Jan. 28, 2013.
The number of registered clinical studies has increased by an average of 28% annually since the year 2000. According to Pharmaceutical Research Manufacturers of America, the pharmaceutical companies lobbying organization, $49 billion was spent last year on researching more than 2,900 compounds.
(5/21/12)- Can Alzheimer's Disease be prevented before it takes its dreaded toll? A $100 million trial, funded by a combination of the federal government, academic researchers, charitable foundations and the drug maker Genentech Inc., which is a subsidiary of Roche Holding AG are going to try and find out.
The drug that will be used for the test is an injectable one named crenezumab. The drug is currently being tested in two clinical trials in this country, Canada and western Europe with people with mild to moderate symptoms to see if it can reduce cognitive decline or amyloid accumulation, with Genentech sponsoring these studies.
The trial will be financed with $16 million form the National Institutes of Health, $15 million from private donors through the Banner Institute and about $65 million from Genentech.
It is hoped that crenezumab will help to break up the clustering of amyloid plaques in the brain. It has not been found to have any negative effects on the brain.
About 300 of the participants in the study will come from Medelin, Columbia because they come from an extended family with a specific genetic mutation, so that they begin to show signs of the disease at 45, and full dementia at 51.
The drug trial is part of the federal government's first national plan to address Alzheimer's Disease (The National Plan to Address Alzheimer's Disease), and it was unveiled by Kathleen Sebelius, the secretary for health and human services.
The trial will start in 2013, and the patients will be treated for up to 5 years.
The NIH also made a $7.9 million grant for a study testing the effectiveness of an insulin spray in treating patients in the early stages of the disease.
(9/14/10)- A recent email from one of our readers asked the question about the essential steps in a medical (clinical) evaluation. We consulted the Centers for Disease Control and Prevention Toolkit for Health Care Professionals and came up with the following:
A detailed patient history, including a review of
medications.
A thorough physical examination.
A mental status screening.
A minimum battery of laboratory screening tests including:
Alanine aminotranferase or aspartate transaminase
serum level.
Albumin and rheumatoid factor.
Blood urea nitrogen.
Complete blood count with leukocyte differential.
Creatinine.
Electrolytes.
Glucose.
Phosphorus.
Thyroid function tests.
Total protein.
Urinalysis
Other test may be included if the treating physician is looking for specific factors in arriving at a differential diagnosis
(8/26/10)- Eli Lilly & Co. announced that it was halting development of its experimental Alzheimer's disease drug semagacestat, after studies showed it was worsening the patients' conditions, and was associated with an increased risk of skin cancer.
Lilly has another experimental AD drug candidate, solanezumab, in late stage development that is not affected by this decision,
Thus, although the news recently concerned being able to determine whether or not an individual is going to be afflicted with the disease through a spinal tap, the battle to find a cure for the disease continues to baffle the scientific community
Semagacestat is a gamma secretase inhibitor that was designed to work by blocking an enzyme in the brain that causes the formation of amyloid plaque. It was designed to deal with patients who had mild-to-moderate Alzheimer's
The interim analysis found that cognition and ability to complete daily activities in patients taking the drug worsened to a greater degree than those taking a placebo. The patients taking semagacestat also had a higher rate of skin cancer.
(7/25/10)-In a study conducted by researchers at the Massachusetts Institute of Technology, that was funded by an American Parkinson Disease Association fellowship and grants from the National Institutes of Health and the Paul E. Glenn Foundation, which backs research on the biology of aging, it was shown that by working on the gene, SIRT1, in the brains of mice, it was possible to reduce their erosion of memory and learning ability.
The gene.regulates the production of a class of proteins known as sirtuin 1. Mice with a model of Alzheimer's disease that were genetically engineered to produce more sirtuin 1 retained both memory and learning ability as they aged
Mice without the enhanced sirtuin capability, and those engineered to produce no sirtuin 1 at all, showed steep declines in learning ability and memory as they aged. SIRT1 has been described at the "longevity gene". Studies have shown that a highly calorie-restricted diet can turn on the gene and thereby increase longevity in everything from yeast to mice
The question remains however as to whether or not there is a connection between
SIRT1 and Alzheimer's disease
(6/13/10)- In attempting a new approach at getting to the bottom of Alzheimer's
disease, 5 of the major drug companies have agreed to pool their data as to the
results of their failed clinical trials. Data from 4,000 patients involved in
11 failed AD clinical trials are now publicly available for all to see.
The drug companies involved in this project are Johnson & Johnson, GlaxoSmithKline PLC, Astra-Zeneca PLC, Sanofi-Aventis and Abbott Laboratories.
The coalition intends to create a similar pooled database for Parkinson's disease and tuberculosis in the future.
FDA Deputy Commissioner Joshua Sharfstein said, "I think the FDA recognizes that one thing that can accelerate drug development is sharing information that is relevant to a disease."
(10/27/08)-A biomarker is a term for something present in the body which can indicate disease, such as a certain protein or molecule. The Nottingham team will be identifying biomarkers by looking at proteins in the blood of Alzheimer's patients compared to a control group of healthy older people.
The researchers at The University of Nottingham hit upon the idea of using
biomarkers as a means of diagnosis and will be involved in collecting the
samples in conjunction with collaborators in the UK and EU, while the samples
will be tested using technology based at Nottingham Trent University.
Researchers from Nottingham's two universities are joining forces to develop a simple blood test to diagnose Alzheimer's disease. The Ł200,000 study, funded by the leading charity the Alzheimer's Research Trust, will aim to find out whether 'biomarkers' in blood could be used to identify someone with Alzheimer's.
(6/22/08) Would you bet on a drug that has a thirty percent chance of reaching the market? Apparently, many stock investors had this idea on Tuesday, June 17, when the stock of the pharmaceutical company, Wyeth, rose 4.83 percent on a potential product for treating Alzheimer’s disease. The drug is bapineuzumab, "one of 23 paths that Wyeth is exploring under its so-called war on Alzheimer’s" (NY Times June 18, C2). Phase 3 stage of this drug evaluation started in Dec. 2007. It is a multicentered, randomized, double-blind, placebo-controlled, parallel-group, efficacy and safety trial in patients with mild to moderate Alzheimer’s disease who are apolipoprotein E4 non-carriers. The study is expected to be completed in Dec. 2010
For those who would like to enroll in the study, we present the following material:
Inclusion Criteria:
Diagnosis of probable AD
Age from 50 to less than 89
Mini-Mental Status Exam score of 16-26 inclusive
Brain magnetic resonance imaging (MRI) scan consistent with the diagnosis of AD
Stable doses of medications (cholinesterase inhibitors and memantine
allowed)
Caregiver able to attend all clinic visits with patient
Exclusion Criteria:
Significant neurological disease other than AD.
Major psychiatric disorder.
Significant systemic illness.
History of stroke or seizure, autoimmune disease, myocardial
infarction within the last 2 years.
Smoking greater than 20 cigarettes per day.
Anticonvulsants, anti-Parkinson's, anticoagulant, or narcotic
medications.
Prior treatment experimental immunotherapeutics
or vaccines for AD.
Women of childbearing potential.
Presence of pacemakers, CSF shunts, or foreign metal objects in the eyes, skin
or body.
Contacts and Locations
Please refer to this study by its ClinicalTrials.gov identifier: NCT00574132
Telephone: 1 866 446 5463
(5/21/07)- The Alzheimer’s disease Cooperative study (ADCS) has received $52 million over 6 years to test drugs for their effectiveness in slowing down the progression or treating the symptoms of AD. The ADCS is a consortium of centers that will be conducting clinical trials, with the University of California, San Diego (UCSD) coordinating the work done at 70 centers in the United States and Canada. Richard J. Hodes, Director of National Institute on Aging (NIA), is quoted as saying: "We have learned a great deal from basic and observational research about how Alzheimer’s and other neurodegenerative diseases develop. The consortium’s work will translate this knowledge in clinical trials of interventions that target the mechanisms underlying AD."
The ADCS was established in 1991 bringing together leading researchers to carry out clinical trials for promising new therapies for AD. Investigators in the consortium have done studies on vitamin E, selegiline, estrogen, NSAIDs and donepezil. There are also ongoing studies of statins, high dose folate/B6/B12 supplements, and valproate to determine whether these compounds can either slow decline or help delay symptoms that emerge in AD patients. They will now do trials with docosahexaenoic acid (DHA), an omega-3 fatty acid, intravenous immunoglobulin (IVIg), lithium and also study alternative ways for the very elderly to take part in research studies.
The principal investigator at UCSD is Leon Thal, MD, chair of the Department of Neuroscience. For more information about thesestudies check www.nia.nih.gov/Alzheimers/Researchinformation/ClinicalTrials
(11/6/06)- The following is a chart from the researchers at clinicaltrials.gov that are recruiting patients for AD research:
Therapy/What is it |
Currently Used For |
Patients being studied |
Sponsor |
Raloxifene |
The treatment and prevenention of osteoporosis in postmenopausal women |
Women with AD |
NIH, Indiana University, Kaiser Permanente and Stanford University |
Sage extract |
Has antioxidant properties: being studied for memory benefits etc. |
Those with mild AD |
National Center for Complementary and Alternative Medicines |
Huperzine A |
Cholinesteraw inhibitors increase a brain chemical called acetylcholine; the supplement is being studied for memory benefits |
Over 55 with AD |
The National Institute on Aging |
Atorvastatin (Lipitor) plus a cholinesterase inhibitor |
Lowering cholesterol |
Those with mild to moderate AD, from 50-90 years old |
Pfizer |
Exercise |
General all around good health |
Those with mild cognitive impairment |
Seattle Institute for Biomedical and Clinical Research; Alzheimer's Association |
Source: The researchers: clinicaltrial.gov
(8/04/06)- Insulin Sensitizer Rosiglitazone (Avandia)
and APOE4 in Alzheimer’s Disease
According to the Clinical Trials.gov site (viewed Aug. 1, 2006), GlaxoSmithKline is set to launch a study of Rosiglitazone (Extended Release Tablets) as adjunctive therapy for subjects with mild to moderate Alzheimer’s disease (Clinical Trials. Gov Identifier NCT00348309). The study will be a randomized, double-blind, placebo control, parallel assignment efficacy study to investigate the efficacy of rosiglitazone (Rosiglitazone is sold under the brand name Avandia) as adjunctive therapy to donepezil on cognition and overall clinical response in APOE e4-stratified subjects with mild to moderate Alzheimer’s disease. They expect to enroll 1392 subjects at a number of sites throughout the USA.
In the publication CNS Drugs 2003,17(1):27-45, G. S. Watson and S. Craft (Geriatric Research, Education and Clinical Center, Veterans Affairs Puget Sound Health Care System, Seattle WA) reviewed evidence suggesting that insulin resistance plays a role in the pathophysiology and clinical symptoms of Alzheimer disease. Based on this evidence, these researchers proposed that the treatment of insulin resistance may reduce the risk or retard the development of Alzheimer’s disease. This has lead to investigators looking at the role of insulin sensitizers as a treatment. Insulin resistance refers to clinical condition in which the biologic response to insulin is diminished to below normal levels.
"University of Buffalo endocrinologists, led by Paresh Dandona, M.D., professor of medicine and head of the Division
of Endocrinology in the UB School of Medicine and Biomedical Sciences, have
been studying the anti-inflammatory properties of insulin and insulin
sensitizers and their potential use in treatment and prevention of
atherosclerosis, one of the leading causes of heart attacks.
Atherosclerosis, or hardening of the arteries, begins as an inflammation of the
blood-vessel wall. Persons with diabetes are at increased risk of developing
atherosclerosis and heart disease. Dandona’s lab has
shown in research with a small group of obese non-diabetic volunteers that
rosiglitazone decreased the levels of oxygen free radicals, which can begin the
inflammation cascade by injuring blood-vessel linings. The drug also decreased
the levels of several blood markers of inflammation." (Information
accessed Aug. 2, 2006 at www.innovations-report.de/html/berichte/medizin_gesunheit/bericht-10622.htm)
Alzheimer’s disease patients treated with rosiglitazone maleate, an insulin sensitizer and mitochondrial stimulator appear to have improved cognition. (See: M.E. Risner et al, "Efficacy of rosiglitazone in a genetically defined population with mild to moderate Alzheimer’s disease, Pharmacogenomics J. (in press) 2006 and S. Ye et al., "Apolipoprotein (apo) E4 enhances amyloid ß peptide production in cultured neuronal cells: APOE structure as a potential therapeutic target." Proc Natl Acad Sci 2005; 102:18700-5.)
The scientific community is hard at work looking at the properties and function of APOE. They now know that APOE plays a basic role in the transport of lipids in the body as well as in the repair of neurons. Human APOE is 299 amino acids long and its gene is found on chromosome 19. The three variants of APOE are called alleles-ApoE2, ApoE3, ApoE4. The latter allele is considered a major risk factor for Alzheimer’s disease. Robert Mahley and Xadong Huang writing in The Scientist, 2006; 20(4):49-54 believe "that apoE4 works in concert with a variety of insults or so-called second hits to lead to neuropathology".
These three alleles differ only at two positions, 112 and 158. The differences result in different biophysical properties that likely contribute to the finding that ApoE4 imposes malfunctioning cell machinery leading to pathology. It appears to "enhance amyloid beta production, potentiate amyloid beta-induced lysomal leakage and apoptosis, and enhance neuron-specific proteolysis (the directed degradation (digestion) of proteins by cellular enzymes called proteases or by intramolecular digestion, ed. insert) resulting in translocation of neurotoxic apoE4 fragments into the cytosol (the internal fluid of the cell, and a portion of cell metabolism occurs here, ed. insert) where they are associated with cytoskeletal disruption and mitochondrial dysfunction". (The Scientist. ibid) The goal of those researchers looking at a drug therapy for Alzheimer’s disease is to convert the apoE4 to apoE3-like molecule. If this could be done, the apoE3 allele is not neuropathologically detrimental, thus reducing the risk of developing Alzheimer’s disease. The question remains whether rosiglitazone is a promise of a cure for one of our most debilitating ills. Meanwhile, research continues on many different fronts to deal with Alzheimer’s disease, that, as the elderly population increases, is looming as a large health crisis in the near future.
(11/)The
information below was taken from the Nov. 9, 2004 issue of Neurology. It
provides centers where interested individuals may get involved in research
studies. There is no guarantee that you will be involved in the reseach arm of the study.
(6/25/04)- The
Alzheimer's Disease Education & Referral Center
(ADEAR) seeks 400 volunteers to test whether high-dose supplements of B6,
B12 and folate will slow the progression of Alzheimer's Disease. Please contact
the Alzheimer's Disease Education & Referral
Center (ADEAR) at (800) 438-4380 or www.alzheimers.org
The
Alzheimer's Disease Education and Referral Center
(ADEAR)
is looking for volunteers to test whether a natural cholinesterase inhibitor
with additional antioxidant and neuroprotective properties (Huperzine
A) will slow the progression of Alzheimer's Disease. Please contact the
Alzheimer's Disease Education & Referral Center
(ADEAR) at (800) 438-4380 or www.alzheimers.org
The
Alzheimer's Disease Education & Referral Center
(ADEAR)
Previous research has shown that Valproate, an anticonvulsant drug, may be
helpful in slowing AD and some of its symptoms. For information about the VALID
study and location of research sites, please call: The Alzheimer's Disease Education
& Referral Center (ADEAR) (A Service of the National Institute on Aging) at
(800) 438-4380 or www.alzheimers.org
The
Alzheimer's Disease Education & Referral Center
(ADEAR)
- Can Cholesterol-lowering drugs help slow Alzheimer's Disease? Some evidence
suggests that statins may also be able to slow the devastating effects of
Alzheimer's disease (AD) on the brain. For information about participation in
the CLASP research study and location of research sites, please call: The Alzheimer's
Disease Education & Referral Center (ADEAR) (A Service of the National
Institute on Aging) at (800) 438-4380 (toll-free).
Antigonadotropin - Leuprolide in
Alzheimer's Disease Drug Investigation (ALADDIN) - is a clinical
trial investigating the safety and effectiveness of leuprolide (a hormone drug)
to improve the cognitive function and slow the progression of Alzheimer's
Disease (AD). The study seeks men 65 years and older with mild to moderate
Alzheimer's disease. Visit http://www.clinicaltrials.gov then enter ALADDIN
in the search request box to view locations of recruiting sites or to learn
more about the study.
The
Experimental Therapeutics Branch, NINDS, is recruiting patients (age 55-85) with mild-moderate
Alzheimer's disease for an experimental study involving the investigational new
drug CX516. The outpatient study duration is about 3 months. There is no cost
to participants, including travel to NIH. Contact Mae Brooks, at (301) 496-4604
or brooksm@ninds.nih.gov. This study is
carried out in compliance with testing and safety standards of U.S. Department
of Health and Human Services.
Margolin
Brain Institute
- If you are at least 45 years old with mild memory loss, you may qualify to
participate in a clinical research trial of an investigational medication. All study related
evaluations and study medication are provided at no cost and there is a travel
allowance. Contact the Margolin Brain Institute.
Contact the Margolin Brain Institute (559) 299-1515.
If you have
memory loss as a result of a stroke, you may be eligible to participate in a
medical research study. Participants will receive study related evaluations and
medications at no cost, which may include: CT or MRI Scan, ECG, Lab Tests,
Memory Testing, Physical Exam, or Study Medication. For more information,
Contact the Margolin Brain Institute (559) 299-1515.
Patients
with mild-to-moderate Alzheimer's disease may qualify to receive an
investigational Alzheimer's medication. Patients may continue taking
prescription Alzheimer's medication. Qualified applicants receive travel
reimbursement. Contact the Margolin Brain Institute
(559) 299-1515.
Patients with
mild-to-moderate dementia may qualify to participate in a clinical research
study of an investigational medication. Study medications and all
"assessments are provided at no cost, and up to $520.00 in travel
reimbursement. Contact the Margolin Brain Institute
(559) 299-1515.
Patients
with moderate to severe Alzheimer's disease may qualify to participate in a
research study of an investigational drug. Study related evaluations and study
drug are provided at no cost. There will be $25.00 per completed visit provided
for travel reimbursement Contact the Margolin Brain
Institute (559) 299-1515.
National
Institute of Aging
will be treating people with Alzheimer's Disease who
suffer from hallucinations, delusions, agitation, or aggression with
risperidone, an FDA-approved antipsychotic medication. Each participant must
have a family member or caregiver who can assist with adherence to treatment
and provide information during the research study. There are sites in New York,
NY; Tuscaloosa, AL; Iowa City, IA; and Charleston, SC. Please contact program
manager at (212) 543-6132
UCLA Kagan Alzheimer's Disease Research Center - Curcumin study. The curcumin study is a 12 month, phase II, UCLA initiated drug trial, with the first 6 months being randomized, placebo controlled, and the second 6 months being open label. This study will be investigating the safety and effectiveness of curcumin, a natural dietary component, with the antioxidant, anti-inflammatory and cholesterol lowering properties, to slow the progression on Alzheimer's disease. For more information, call (310) 206-3779.
As the population ages, it has been predicted that more individuals will develop Alzheimer’s disease. Alzheimer's disease ranks as the eighth-leading cause of death in the U.S., and accounted for 44,507 deaths in 1999. It is estimated that Alzheimer’s disease costs society about $33 billion annually, with average lifetime cost per individual at about $174,000.
In 1999, the United States government will spend approximately $400 million for research, which works out to $1 for every $250 the disease now costs. This money mainly goes for clinical trials designed to find new and better medications to deal with the symptoms related to the disease, and hopefully to cure the disease.
There may be some readers of this article who know of individuals who would like to participate in this research with the knowledge that in a research project the investigators are looking at the product rather than the individual patient. These trials are funded by the National Institute of Health and are public information.
We will send a list of the study sites, with names of the Principle Investigators to those readers who request it in writing (Rehabilitation Strategies Unlimited, c/o Harold Rubin, 255 West 90th Street, New York, NY 10024). Please include a self-addressed stamped envelope. We will also include names of pharmaceutical companies that sponsor indigent drug services for needy individuals who would otherwise be unable to afford such medication.
The following trials are now available in the Alzheimer's Disease Education and
Referral Center's Clinical Trials Database
(http://www.alzheimers.org/trials/index.html),
a service of the National Institute on Aging.
NEW---Valproate in Dementia (VALID)---VALID is a 26-month research study
conducted at 30 sites nationwide to test whether valproate (an anti-seizure
drug) is effective in delaying, weakening, or possibly even preventing
difficult behaviors (agitation, psychosis) in people with early to middle stage
AD, and whether it has any effect on slowing the progression of AD itself.
Researchers for this study are looking for participants who:
-are age 55-90 (inclusive),
-have been diagnosed with probable Alzheimer's disease (AD), and
-have not experienced agitation or psychosis since the onset of AD.
The VALID study is sponsored by the Alzheimer's Disease
Cooperative
Study based at the University of California, San Diego and funded by the U.S.
Government's National Institute on Aging, one of the National
Institutes of Health.
For more information, including specific eligibility criteria, see the full
record at:http://www.alzheimers.org/dbtw-wpd/exec/dbtwpcgi.exe
UPDATED---Antigonadotropin-Leuprolide in
Alzheimer's Disease Drug Investigation (ALADDIN)-VP 104---
The ALADDIN study, a research study to investigate the safety and effectiveness
of leuprolide (a hormone drug) to improve cognitive
function and slow the progression of AD, is now seeking men age 65 years and
older with mild to moderate Alzheimer’s disease who reside in the
community. This Phase II study is sponsored by Voyager Pharmaceuticals.
For more information, including specific eligibility criteria, see the full
record at: http://www.alzheimers.org/dbtw-wpd/exec/dbtwpcgi.exe
* NEW! Cholesterol Lowering Agent to Slow Progression of AD (CLASP) -sponsored
by the Alzheimer's Disease Cooperative Study and
funded
by the National Institute on Aging. This study, at 40 sites in the U.S., seeks participants
with mild to moderate AD to test the effectiveness of the cholesterol-lowering
statin drug simvastatin in slowing AD.
* Updated! Treatment of Agitation/Psychosis in Dementia and Parkinsonism
(TAP/DAP) - This study seeks patients with a primary dementia (probable
Alzheimer's disease or dementia with Lewy bodies, also now includes Parkinson's
disease with dementia) complicated by coexistent parkinsonism
to test the efficacy and tolerability of quetiapine and donepezil, used alone
or in combination, to treat psychosis and/or agitation.
The full records for both new trials are attached below.
You can also view the records on our web site at http://www.alzheimers.org/trials/basicsearch.html
-
click on "View All Trials" and select the trial you would
like to view. For questions, call us toll-free
at 1-800-438-4380 (Monday-Friday, 8:30am-5pm Eastern Time).
The following is a copy of an e-mail that Harold Rubin received from:
Jennifer Watson
Outreach and Promotion Specialist
Alzheimer's Disease Education and Referral Center
Dear Mr. Rubin -
Thanks so much for your inquiry about Alzheimer's disease clinical trials. I
had a chance to look at your Web site which is terrific!
Since we talked, the Healthy Aging and Memory Study has
completed recruitment and is no longer seeking volunteers.
The Homocysteine study is not yet underway - the study sites are in process of
gaining approval from their Institutional Review Boards (IRBs). The name of the
study is "VITAL" (VITamins to slow ALzheimer's) and it will seek to discover whether lowering
homocysteine with
high-dose supplements of folate, B6, and B12 will slow cognitive decline in
people with AD. Paul Aisen, MD, of Georgetown
University is directing the study. Approximately 40 sites will enroll a total
of 400 volunteers age 55 or older with mild to moderate AD for this 18-month
trial.
You are signed up for our e-mail alert service and will receive an e-mail when
any new trials are recruiting participants. You can also check back on our Web
site at www.alzheimers.org.
Thanks again for your interest and for spreading the word! Please let me know
if I can be of any further assistance.
Sincerely,
Jennifer Watson
Outreach and Promotion Specialist
Alzheimer's Disease Education and Referral Center
The following is a list of Web sites that may help you gather more information
about studies that are presently being conducted to further the research on
Alzheimer's disease.
The ClinicalTrials.gov web site
developed by National Institute of Health through its National Library of Medicine, contains about 5,000 clinical studies sponsored
primarily by the National Institutes of Health.
The Alzheimer's Disease
Clinical Trials Database, a joint project of the FDA and National Institute
on Aging, provides directories of clinical trials by state, with detailed information
on the experimental drug, criteria for inclusion and exclusion, and contact
information.
The CenterWatch
Clinical Trials Listing Service web site is less detailed, but includes
trials not listed in the Alzheimer's Disease Clinical
Trials Database.
The Alzheimer's Association can provide a
list of study centers in your region. Send e-mail or phone 800-272-3900.
There are presently at least three different clinical trials that are recruiting subjects in connection with possible modes of prevention of Alzheimer's disease. ADAPT, PREPARE and PREADVISE mentioned in the chart below are sponsored by the National Institute on Aging. The National Center for Complimentary and Alternative Medicine is sponsoring the GEM study at the National Institute of Health.
Study |
Who's eligible |
Contact |
ADAPT (AD anti-inflammatory Prevention Trial) |
People 70+ who have not been diagnosed with AD but have a relative who had the disease |
1-866-2-STOP-AD |
PREPARE ( Preventing Postmenopausal Memory Loss and AD with Replacement Estrogens) |
Women 65+ |
1 877 DELAY-AD |
PREADVISE (Prevention of AD by Vitamin E and Selenium) |
Men 60 to 90 years of age |
1-800-333-8874 |
GEM ( Ginkgo Evaluation of Memory) |
People 75+ with dementia |
Closed to new participants http://alz.org/research/clintrials/#prevention |
The Danish pharmaceutical company Lundbeck LUN.CP said its drug Memantine for treatment of Alzheimer's disease was recommended for approval by a European Union committee. Forest Labs has the marketing rights in the U.S. Memantine is the first drug to do clinical trials in patients with severe Alzheimer's although it is not likely to be more effective than the current Alzheimer drugs on the market. The drug is not expected to be on the U.S. market for approximately two years.
Elan and Wyeth-Ayerst Labs (a division of American Home Products) announced
that it has suspended patient dosing in it Phase 2A study of AN-1792, which we
discuss in Study Number 2 below. The study has been suspended and the drug will
not be going forward in development because four patients were reported to have
signs of inflammation of the Central Nervous System (CNS).
The December 21, 2001 issue of Nature indicated that researchers using a
transgenic mouse model of Alzheimer's disease were able to demonstrate that
accumulation of amyloid-beta protein deposits correlated with cognitive
decline. They showed that a vaccine could reduce the amyloid-beta protein
deposits and reduce impairments in learning and memory. This sounds like good
news, but for many in the scientific community, there still is a question of
whether it is the amyloid-beta plaques that cause dementia. Some researchers
are focusing in on two separate Alzheimer disease genes located on chromosome
10 that play a part in regulating amyloid-beta levels.
A number of our readers have asked us about volunteering for studies being
done with possible new AD medications. We recently received the following
e-mails outlining two current studies that are recruiting subjects. There are
phone numbers listed where you could check it out for yourself, since we make
no recommendations in connection with the studies.
The Editors
http://www.therubins.com
****To Subscribe or Unsubscribe to any of the ADEAR e-mail alert lists
please go to [www.alzheimers.org/maillist.html].*****
To avoid unauthorized addition or deletion of another person's e-mail address,
we cannot honor e-mail subscribe/unsubscribe requests - please go to www.alzheimers.org/maillist.html
to subscribe or unsubscribe.
This trial record can be viewed by clicking on the link at [http://www.alzheimers.org/trials/newtrials.html].
Study number 4
PROTOCOL NUMBER-IA0032
BRIEF TITLE-Healthy Aging and Memory Study
OFFICIAL TITLE-Alzheimer's Disease Prevention Instrument Protocol
SPONORING AGENCY: National Institute on Aging
DRUG(S) (GENERIC NAME [BRAND NAME]):
None
PHASE: N/A
INCLUSION CRITERIA
1. 75 years or older.
2. Fluent in English or Spanish.
3. Stable medical condition for four weeks prior to screening visit.
4. Stable medications for four weeks prior to screening visit.
5. Either cognitively normal, or mild cognitive
impairment (MCI). If MCI, the subject's CDR at screening must have a global
score of 0.5.
6. mMMSE score greater than
88 for subjects with greater than 8 years of education, or greater than 80 for
subjects with less than 8 years education, and Free and Cued Selective
Reminding Task total free plus cued recall score greater than 44 with three
learning trials.
7. Willing to participate in four to five year follow-up study.
8. Willing to identify person who can serve as study partner, as well as attend
all clinic visits with study participant. The study partner should be someone
who has contact with the study participant at least twice a week in person or
by phone.
9. Study subjects and their study partners must be able to read and complete
study forms.
INCLUSION SEX: Both
EXCLUSION CRITERIA:
1. Meets DSM IV criteria for dementia.
2. History of clinically significant medical illness that would interfere with
participation in trial, including active malignancy, myocardial infarction, or
cerebrovascular accident within the past year.
3. Alcohol or substance abuse and/or active major psychiatric disorders.
4. Concurrent participation in a clinical drug trial.
5. History of mental retardation.
PROHIBITED MEDICATIONS:
1. Antipsychotic agents. These agents are allowed if low doses are prescribed
for reasons other than treatment of psychiatric symptoms, and the doses are
stable for at least four weeks prior to screening.
2. Antiparkinson drugs.
3. Medications for treatment of dementia.
4. Antidepressant therapy is acceptable as long as the dosage has been stable
for four weeks prior to screening.
5. Vitamin E in excess of 430 IU per day.
INPATIENT-OUTPATIENT-Outpatient
CONDITION(S) STUDIED-Alzheimer's disease
DESCRIPTION FOR HEALTH PROFESSIONALS
This project will focus on the development and testing of efficient, cost
effective measures that are specifically designed for use in Alzheimer's
disease primary prevention trials. The new or improved measures that have been
developed will be evaluated in 650 nondemented
subjects enrolled in a simulated Alzheimer's disease primary prevention trial.
Once enrolled, subjects will be followed for four years with annual clinical
evaluations and interim six-month phone calls.
DESCRIPTION FOR THE PUBLIC
This project will focus on the development and testing
of efficient, cost-effective tests and measures that are specifically designed
for use in Alzheimer's disease primary prevention trials.
TRIAL SITES:
Birmingham, AL 35294-1150: University of Alabama, Birmingham: Jo Ann
Parrish, LPN: Tel: 205-934-6223: jparrish@uab.edu
Sun City, AZ 85351: Sun Health Research Institute: Suhair
Stipho, MB, CH B: Tel: 623-875-6516: suhair.stipho@sunhealth.org
Sacramento, CA: University of California, Davis: Bobbi Henk, RN, MSN: Tel: 916-734-6750: barbara.henk@ucdmc.ucdavis.edu
Palo Alto, CA 94304: Stanford/VA Aging Clinical Research Center: Heather
Fiedler-Greene, MA: Tel: 650-852-3234: heather.fiedler@stanford.edu
Irvine, CA 92697-4285: University of California, Irvine: Catherine
McAdams-Ortiz, RN, MSN: Tel: 949-824-8726: cmcadams@uci.edu
Los Angeles, CA 90095-1769: University of California, Los Angeles: Susan
O'Connor, RNC: Not Yet Recruiting: -
LaJolla, CA 92037: University of
California, San Diego: Mary Pay, RN, CNP: Tel: 858-622-5800 Fax: 858-622-1017: mpay@ucsd.edu
Los Angeles, CA 90033-1039: University of Southern California: Nansi A. Taggart, RN, BSN, MA: Not Yet Recruiting: -
New Haven, CT 06510: Yale University School of Medicine: Shannon Savarese: Tel: 203-764-8100: shannon.savarese@yale.edu
Washington, DC 20007: Georgetown University: Carolyn Ward, MSPH: Tel:
202-784-6671 Fax: 202-784-4332: cw2@georgetown.edu
Boca Raton, FL: Baumel-Eisner Neuromedical Institute: Fannie Levinson: Tel: 800-755-1999:
fannie.levinson@advancecps.com
Fort Lauderdale, FL 33321: Baumel-Eisner Neuromedical Institute: Fannie Levinson: Tel: 800-755-1999:
fannie.levinson@advancecps.com
Miami Beach, FL 33154: Baumel-Eisner Neuromedical Institute: Fannie Levinson: Tel: 800-755-1999:
fannie.levinson@advancecps.com
Tampa, FL: University of South Florida: Dolina
Bois, MA: Tel: 813-974-4355: dbaxte@hsc.usf.edu
Jacksonville, FL: Mayo Clinic, Jacksonville: Francine Parfitt, MSH,
CCRC: Not Yet Recruiting: -
Miami Beach, Fl 33140: Wien Center (Miami
Beach): Peggy D. Roberts: Tel: 305-674-2424: proberts@msmc.com
Atlanta, GA: Emory University: Lisa Kilpatrick, BS, MS: Tel:
404-728-6590: lkilpat@emory.edu
Chicago, Il: Northwestern University: Laura Herzog, MA: Tel:
312-695-2343: l-herzog@northwestern.edu
Chicago, Il: Rush Alzheimer's Disease Center: Rose Marie Ferraro, LVN,
AS: Tel: 312-942-8264: rferraro@rush.edu
Indianapolis, IN 46202: Indiana University Alzheimer's Center: Nicki
Coleman RN: Tel: 317-274-1351: ndcolema@iupui.edu
Lexington, KY: University of Kentucky: Kelly Woodall, RN: Tel:
859-257-5562: kswood0@uky.edu
Balitimore, MD: Johns Hopkins University:
Cynthia Munro, PhD: Tel: 410-614-7785: cmunro@jhmi.edu
Boston, MA 02115: Brigham and Women's Hospital: Kara Campobasso, MA, PA:
Tel: 617-732-7992: kcampobasso@partners.org
Boston, MA: Boston University School of Medicine: Jeri Jewett: Tel:
617-638-5430: mtroth@bu.edu
Ann Arbor, MI: Michigan Alzheimer's Disease Research Center: Linda V.
Nyquist, PhD: Tel: 734-936-6078: lnyquist@umich.edu
Rochester, MN: Mayo Alzheimer's Disease Center: Joan McCormick, BSN, RN:
Tel: 507-284-7906: mccormick.joan@mayo.edu
St Louis, MO: Washington University: Pamela Millsap, BSN: Tel:
314-286-2363: millsapp@abraxas.wustl.edu
Las Vegas, NV: University of Nevada, Las Vegas: Marie L, Stallbaum, BSN: Tel: 702-671-5021: stallbau@med.unr.edu
New York, NY: Columbia University: Ruth Tejeda, MD: Tel:
212-305-5805: tejedar@sergievsky.cpmc.columbia.edu
New York, NY: Mt. Sinai Medical Center: Adriana DiMatteo,
MA: Tel: 212-241-0438: adriana.dimatteo@mssm.edu
New York, NY: New York University School of Medicine: Maria Vlassopoulos: Tel: 212-263-5708: maria.vlassopoulos@.med.nyu.edu
Rochester, NY: University of Rochester: Colleen McCallum, MSW: Tel:
716-760-6574: colleen_mccallum@urmc.rochester.edu
Cleveland, OH: University Hospitals of Cleveland: Nancy A. Slocum, RN,
MPH: Tel: 216-844-6328: nas10@po.cwru.edu
Portland, OR: Oregon Health Sciences University: Georgene
Siemsen, MS, RN: Not Yet Recruiting: -
Philadelphia, PA: University of Pennsylvania: Kris Gravanda,
BA: Tel: 215-349-5903: krisg@mail.med.upenn.edu
Pittsburgh, PA: University of Pittsburgh: Patrick Ketchel,
MEd: Tel: 412-692-2721: ketchelpj@msx.upmc.edu
Pawtucket, RI: Memorial Hospital of Rhode Island: Meg Lannon, RN, MS: Tel: 401-729-3750: m_lannon@mhri.org
North Charleston, SC 29406: Medical University of South Carolina: Effie
Hatchett, RNC: Tel: 843-740-1592: hatcheer@musc.edu
Dallas, TX: University of Texas Southwestern Medical Center: Robbin
Peck, AD: Tel: 214-648-7457: robbin.peck@utsouthwestern.edu
Study No. 3
PROTOCOL NUMBER
IA0033
BRIEF TITLE :PREADVISE
OFFICIAL TITLE Prevention of Alzheimer's Disease by Vitamin E and Selenium
SPONORING AGENCY: National Institute on Aging National Cancer Institute
PRINCIPAL INVESTIGATOR
Dr William Markesbery
Dr Frederick Schmitt
Dr Richard Kryscio
Sanders-Brown Center on
Aging
DRUG(S) (GENERIC NAME [BRAND NAME]): Vitamin E, ,Selenium
MANUFACTURER(S): N/A
PHASE Phase III
INCLUSION CRITERIA
1. Participating in SELECT prevention study.
2. 62 years or older, or 60 years or older if
African-American or Hispanic.
3. General good health with no neurological or psychiatric illness.
INCLUSION SEX
Male
EXCLUSION CRITERIA:
1. Neurologic illness such as Parkinson's disease, Alzheimer's disease,
seizures, stroke, or multiple sclerosis.
2. Serious medical illness such as cancer, or liver, blood, lung, gallbladder,
or kidney disease.
3. Psychiatric illness such as untreated depression, anxiety, schizophrenia, or
alcohol or substance abuse.
4. Taking prescription medications that can affect memory and thinking.
INPATIENT-OUTPATIENT
Outpatient
CONDITION(S) STUDIED
Alzheimers Disease
STUDY DESIGN
Participants accepted into the study will be given vitamin E and selenium
supplements alone or in combination, or a placebo. All participants receive a
multivitamin. They will visit the study site every six months for seven to
twelve years. If participating in the PREADVISE study, in addition to the
SELECT study, a short memory test will also be administered on an annual basis
to detect cognitive changes.
DESCRIPTION FOR THE PUBLIC
The Prevention of Alzheimer's Disease with Vitamin E
and Selenium (PREADVISE) trial is an important addition to the Selenium and
Vitamin E Cancer Prevention Trial SELECT). As a prevention trial, PREADVISE is
trying to find out if taking selenium and/or vitamin E supplements can help to
prevent memory loss and dementia such as Alzheimer's disease.
TRIAL SITES:
For trial sites for the SELECT and PREADVISE trials, please visit http://www.swog.org and read the information on
the SELECT study.
Study Number 1
PROTOCOL NUMBER : IA0031
BRIEF TITLE: Effect of the HMG-CoA Reductase Inhibitor Atorvastatin Calcium,
Lipitor, in the Treatment of Alzheimer's Disease
DESCRIPTION FOR THE PUBLIC
Assessment of the clinical benefit of a cholesterol- lowering drug in the
treatment of Alzheimer's disease.
SPONORING AGENCY:
Institute for the Study of Aging
Pfizer, Inc.
PRINCIPAL INVESTIGATOR
David Lawrence Sparks, PhD Sun HealthResearch
Institute
CONTACT PERSON:
David Lawrence Sparks, PhD 623-876-5463
Larry.Sparks@SunHealth.org 10515 West Santa Fe Drive, Sun City AZ 85351
DRUG(S) (GENERIC NAME [BRAND NAME]):
Atorvastatin [Lipitor]
MANUFACTURER(S): Pfizer, Inc.
PHASE Phase II
INCLUSION CRITERIA
1. Signed consent form prior to participation.
2. Diagnosis of probable or possible Alzheimer's disease according to NINDS-ADRDA
and DSM- IV criteria for dementia.
3. Not actively participating in another clinical drug trial.
4. MMSE range 12-28 at entry.
5. Hachinski Modified Ischemic score <= 4.
6. Accompanied by appropriate caregiver who can aid in administration of medication
and make assessments.
7. Good general health as evidenced by physical, neurological and clinical
laboratory examination.
8. Education level >= 9th grade or equivalent.
9. Fluent in the English language.
10. Able to understand and give informed consent.
11. Reliable caregiver.
12. Able to complete neuropsychological tests.
13. Ambulatory.
14. On stable doses of medications for the treatment
of non-excluded medical conditions for four weeks prior to screening.
15. Able to participate in all scheduled evaluations.
16. Geriatric Depression Scale <= 20.
17. Not exceeding 400 IU of Vitamin E for 30 days.
18. For patients currently taking donepezil, they must remain on stable dose
for at least three months. Individuals taking stable doses of other
cholinesterase inhibitors for at least three months can be included, but no
study subject may initiate use of any cholinesterase inhibitor after entrance
to trial.
19. Individuals of both sexes over 50 years of age will be eligible.
INCLUSION SEX: Both
EXCLUSION CRITERIA:
1. Significant neurological or psychiatric disease other than Alzheimer's
disease.
2. Patients with known or suspected Parkinson's disease or Dementia with Lewy
Bodies according to McKeith criteria.
3. Significant systematic illness (including uncontrolled hypertension) or
organ failure.
4. History of myocardial infarction within one year or history of significant
untreated cardiac or thromboembolic vascular disease.
5. Current chronic use of anti-cholinergic medications including
anti-histamines, Artan or Cogentin. Stable doses of
anxiolytics, sedatives, hypnotics, antipsychotics, and SSRI antidepressants are
acceptable. The use of antipsychotics or tricyclic antidepressants must be
reviewed prior to entry.
6. Diagnosis of major depression in the prior two years according to DSM-IV
criteria.
7. Allergies to atorvastatin or HMG-CoA reductase inhibitors.
8. Pregnant females.
9. History of head injury.
10. Use of a cholesterol lowering drug at time of entry.
11. History of significant liver disease and/or elevated transaminases.
12. Cholesterol level lower than 90 mg at initial screening.
PROHIBITED MEDICATIONS:
1. Vitamin E in excess of 400 IU per day, washout to that level.
2. Any medication contraindicated by the package insert.
3. Subjects may continue stable dose of cholinesterase inhibitors.
INPATIENT-OUTPATIENT: Outpatient
CONDITION(S) STUDIED: Alzheimer's disease
DESCRIPTION FOR HEALTH PROFESSIONALS
Assessment of the clinical benefit of a cholesterol- lowering drug in the
treatment of Alzheimer's disease.
PRECAUTIONS:
General use or self administration of grapefruit
products may prolong the effects of active study medication by reducing
metabolism.
TRIAL SITES:
Sun Health Research Institute, Cleo Roberts Center for Clinical Research, Sun
City AZ, Contact:D. Larry
Sparks, Tel:623-876-5463,
E-Mail:Larry.Sparks@SunHealth.org
Study Number 2-This study has been suspended and will not be going
forward.
PROTOCOL NUMBER :IA0030
BRIEF TITLE: Randomized Safety, Tolerability and Pilot Efficacy of AN-1792 in
Alzheimer's Disease
DESCRIPTION FOR THE PUBLIC
The study enrolled approximately 375 patients with mild to moderate Alzheimer's
disease at investigational sites in the United States and Europe. Patients received
either AN-1792 or placebo, and were evaluated using standard clinical
assessments of cognition and memory as well as experimental surrogate markers
of Alzheimer's disease pathology. The goal of the study was to evaluate the
clinical impact of eliciting an immune response (formation of antibodies) to
the A-beta peptide in patients with Alzheimer's disease. As we discussed above
this study has been stopped because of problems that have developed in some of
the patients who received the drug.
SPONSORING AGENCY: Elan Pharmaceuticals, Wyeth-Ayerst
CONTACT PERSON: Elan Pharmaceuticals 888-635-9987 (US), 800-898-3736
(International)
Data was presented at the World Congress of Neurology, based on a 12-month
study of Reminyl (R) (galantamine
hydrobromide) that the drug which has been approved
for treatment of mild to moderate Alzheimer's disease, also may be effective in
treating dementia in individuals with cerebrovascular disease. Reminyl is comarketed by Shire Pharamaceutical and Johnson & Johnson. Janssen
Pharmaceutical Products announced that the FDA has approved a new oral solution
formulation of its Alzheimer's disease therapy Reminyl.
It may prove valuable to those patients who have difficulty swallowing pills.
The FDA has granted approval to Johnson & Johnson for its drug Reminyl to treat mild-to-moderate cases of Alzheimer's disease. According to a company spokesman the drug will be available to the public starting in May 2001. Its price will be about the same as 2 other medications now being used to treat Alzheimer's disease. The other 2 drugs are Aricept, sold by Pfizer, Inc., and Exelon sold by Novartis AG of Switzerland. Reminyl was shown to be effective in improving or helping to stabilize patients' ability to think and perform daily tasks of living. The test group used to evaluate the drug consisted of 2,650 subjects. Side effects reported in connection with taking the drug included nausea, vomiting, anorexia, diarrhea and weight loss. The Janssen Research Foundation, a subsidiary of Johnson & Johnson developed the drug, under a co-development and licensing agreement with Shire Pharmaceuticals Group PLC.
The May 10, 2000 issue of JAMA (an American Medical Association publication) column titled "The World in Medicine" discussed a "promising" new drug for Alzheimer’s disease treatment. The drug, Galantamine Hydrobromide, marketed as Reminyl, is for treatment of mild to moderate cases of Alzheimer’s disease. The European studies indicated that 24 mg/d is the dosage that is most effective, improving scores on the Alzheimer’s Disease Assessment Scale in memory, language, orientation and other aspects of cognition over a one year period.
Galantamine is classified as Acetylcholinesterase inhibitors. It also appears to act on nicotine receptors in the brain. Both the acetylcholine and nicotine receptors have been suggested as areas related to cognitive impairment.
It remains to be seen whether this drug is any better than those already on the market in the USA. It does not pretend to be a cure for Alzheimer’s disease, but may retard the cognitive decline.
Researchers are still trying to pin down the process of memory impairment in the brain. Neurotransmission in the brain is a complex phenomenon, involving different receptor sites. Different mechanisms of action may precipitate different profiles of AD and call for different forms of treatment. The hallmarks of Alzheimer’s disease involve extensive amyloid plaque formation, neuritic dystrophy, synaptic loss and gliosis. These pathological and biochemical changes are the target of drug treatment. It is not yet known what causes these pathologic changes, although genetics and age are risk factors and theories abound.
Media reports have been suggesting that a "vaccine" is on the way which is being developed by Elan Corporation. Please note that research is only in the first clinical trial phase of development to make people immune to beta-amyloid plaque formation. This month's issue of the journal Nature reports on a study performed by scientists at Massachusetts General Hospital in Boston and Elan Corp of Dublin. The brains of mice with genetically induced Alzheimer's disease were injected with an antibody known to attack beta-amyloid, a plaque that normally builds up and clogs the brains of people with Alzheimer's disease. A protein injection melted away the brain-clogging beta-amyloid plaque. The literature indicates that you can have beta-amyloid plaque formation and not have symptoms of AD and that plaque formation is a ubiquitous phenomenon in human beings. It will be many years before this vaccine becomes available to the public and then, only if it passes all phases of drug development and long-term clinical use. Some scientists believe that the beta-amyloid buildup is merely a symptom of Alzheimer's disease and that therapies aimed at clearing them up will not cure the underlying disease.
To keep our readers informed, we present a further list of drugs in clinical trails. These drugs are based on the theory that stimulating the cholinergic, muscurinic or nicotinic synapses could alter the progression of the disease. Most are aimed at palliative treatment. Presently, cholinesterase inhibitors are the only approved pharmaceutical treatment of AD. Cholinesterase inhibitors block acetylcholinesterase, preserving acetylcholine for a longer period of time, thus preserving brain cell communication. The most common adverse events of this class of drugs involve the gastrointestinal tract: nausea, vomiting and diarrhea. Physicians will lower the dose when these affects show up, until the individual becomes tolerant and then building the dose up again. The drugs listed below may have a wider range of adverse effects and are not available for treatment of AD in the USA.
See: Alzheimer's Disease
Part I-Medications for Alzheimer's.
See: Alzheimer’s Disease Part II- Selegiline and AD.
See: Alzheimer's Disease Part III- Use of Gingko Biloba in memory problems of Alzheimer
patients
See: Part IV-Alternative Treatments for AD
See: Part V-Possible New Drugs for Alzheimer's
Disease
See: Part VI-Early Diagnosis
See: Part VII-Metrifonate
See: Alzheimer’s Disease Part VIII - Implications of Longer Life Expectancies
See: Alzheimer’s
Disease Part IX- -Estrogen and
Alzheimer’s Disease
See: Alzheimer’s
Disease Part X-- -Pocket Smell Test
See: Alzheimer’s
Disease Part XI - Ethical Care
See: Alzheimer's Disease Part XII- MAO
See: Alzheimer's
Disease Part XIII-Possible Screening for ADt
See: Alzheimer's Disease Part XIV-Donepezil
See" Alzheimer's Disease Part XV-Cerebroylsin
See: Alzheimer's Disease Part XVI-MCI
See: Alzheimer's Disease Part XVII-Research Summary
See: Alzheimer's Disease Part XVIII- NSAIDs
See: Alzheimer’s Disease-Part XIX- Vitamin E
See: Alzheimer's Disease-Part XX-Clinical Trials
See: Alzheimer's Disease Part XXI-The Brain
See Dementia with Lewy Bodies- Part XXII-by Gourete Broderick
See: Alzheimer's Disease-Part XXIII-HMG
See: Alzheimer's Disease-Part XXIV-A Prequel
See: Alzheimer's Disease-Part XXV-Psychosis
See: Alzheimer's Disease-Part XXVI-Amyloid-beta
Hypothesis Controversy
See: Alzheimer's Disease-Part XXVII- AD and
Diabetes
See: Alzheimer's Disease-Part XXVIII - Insulin and
AD
Harold
Rubin, MS, ABD, CRC, Guest Lecturer
updated October 27, 2016