Skip to main content
Find more clinical trials

Bryostatin for Moderate or Severe Alzheimer's Disease

Start: August 30, 2020
End: November 2, 2022
Enrollment: 100

What Is This Study About?

This study will test whether the research drug, bryostatin, can improve cognition and slow disease progression in older adults with moderate to severe Alzheimer's disease. Participants will be randomly assigned to take seven IV injections of the study drug or placebo over 12 weeks. Thirty days later, a second treatment round will begin with another seven doses. The researchers will measure cognition at various points throughout the study with the final measurement four months after the last dose. Bryostatin affects an enzyme called protein kinase C epsilon. Activation of this enzyme is thought to improve nerve cell function and create of new connections in the brain.

Do I Qualify To Participate in This Study?

Minimum Age: 55 Years

Maximum Age: 85 Years

Must have:

  • Cognitive problems for at least two years that meet the diagnostic criteria for probable Alzheimer's dementia
  • Mini-Mental State Examination score of 10 to 18
  • Must have a Severe Impairment Battery score between 60 and 93
  • Brain imaging, such as computerized tomography or MRI, within the last two years that is consistent with probable Alzheimer's disease
  • Caregiver or study partner who spends, on average, at least three hours per day, three or more days per week, with the participant and can attend clinic visits and complete caregiver questions
  • Adequate vision and motor function to complete testing
  • Use of cholinesterase inhibitor medications for the treatment of Alzheimer's disease must be a stable dose for at least three months and must not change during the study unless a change is required due to side effects of the prescribed medication or significant changes to the participant's health
  • If prior use of memantine, must have taken the last dose at least 90 days before starting the study  
  • Use of antipsychotic medications must be stable for four or more weeks
  • Females must be surgically sterile for at least six months, postmenopausal for one year or agree to use a double method of contraception 30 days before and after dosing, and must test negative for pregnancy
  • Males must be surgically sterile or use appropriate contraception 30 days before and after dosing
  • Reasonably good health over the last six months
  • Any chronic disease must be stable

Must NOT have:

  • Dementia due to any condition other than Alzheimer's disease, including vascular dementia
  • Significant central nervous system vascular disease, including stroke, multiple brain infarcts (a small localized area of dead tissue resulting from failure of blood supply), localized single infarcts in the thalamus, angular gyrus, multiple lacunar infarcts, or extensive white matter injury in the brain
  • Nervous system disease or condition other than Alzheimer's disease, such as brain tumor, chronic subdural fluid collections, Huntington's disease, Parkinson's disease, normal pressure hydrocephalus, or any other diagnosis that could interfere with determining the safety and effectiveness of the study medication
  • Unstable heart, lung, kidney, liver, gastrointestinal, nervous system, or metabolic disease within the past six months
  • History of cancer in the past two years; more recent history of skin cancer may be acceptable
  • Creatinine clearance level of less than 45 ml per minute
  • Poorly controlled diabetes
  • Prohibited medications: NMDA-receptor antagonists, including memantine or drug combinations containing memantine, dextromethorphan (a cough suppressant), ketamine, phencyclidine, methoxetamine, nitrous oxide, and the following synthetic opioids: pethidine, levorphanol, methadone, dextropropoxyphene, tramadol, and ketobemidone
  • Use of the following drugs or supplements within 14 days prior of screening: vitamin E greater than 400 IU per day, acetaminophen, gabapentin, and valproic acid
  • Use of an active Alzheimer's vaccine in the past two years
  • Use of a monoclonal antibody treatment of Alzheimer's disease within one year prior to screening
  • Any medical or psychiatric condition that is likely to require additional medication or surgery during the course of the study
  • Any laboratory test values that are determined to be clinically significant   
  • Any laboratory test results that suggest a different cause for dementia other than Alzheimer's disease
  • Use of a research drug within 90 days prior to screening
  • Active suicidal thoughts in the past six months, or suicide attempt in the past two years
  • Major psychiatric illness such as current major depression, current or past diagnosis of bipolar disorder, schizophrenia, or any other psychiatric disorder that might interfere with the study
  • Diagnosis of alcohol or drug abuse within the last two years
  • Abnormal electrocardiogram
  • Acute or poorly controlled medical illness, including high blood pressure greater than 180 systolic or 100 diastolic, heart attack in the past six months, or a deteriorating heart condition with symptoms such as difficulty breathing, excess fluid retention, or increasing fatigue
  • Positive for HIV
  • Positive for hepatitis B or C, unless successful curative treatment for hepatitis C has been received with documentation that no hepatitis B or C virus detected for at least three months after treatment
  • Any blood test results that indicate abnormal liver function
  • Prior exposure to bryostatin, or known sensitivity to bryostatin or any ingredient in the study drug
 

Study Contact
Alan J Tuchman, MD
973-242-0005
atuchman@neurotrope.com
Elaine Grenier, BS
973-242-0005
egrenier@neurotrope.com

Need Help?

Contact NIA’s Alzheimer’s and related Dementias Education and Referral (ADEAR) Center at 800-438-4380 or email ADEAR.

Where Is This Study Located?

California
Axiom Research
Colton, CA 92324
Recruiting
Pamela West
909-824-2325
pamelawest@axiomresearch.com
Pacific Research Network
San Diego, CA 92103
Recruiting
Misty Daniel
619-294-4302
mdaniel@ergclinical.com
Florida
JEM Research
Atlantis, FL 33462
Recruiting
Valerie Nevins
561-968-2933
vnevins@jemri.net
Galiz Research
Hialeah, FL 33016
Recruiting
Luis Pedraza
305-805-0921
luisp@galizresearch.com
ClinCloud
Maitland, FL 32751
Recruiting
Shayna Carter
407-636-4031
SCarter@myclincloud.com
Miami Dade Medical Research Institute
Miami, FL 33176
Recruiting
Ramon Avellana
305-722-7210
ravellana@miamimedresearch.com
Anchor Neuroscience
Pensacola, FL 32502
Recruiting
Lynn Head-Jolliff
850-433-6760
lheadjolliff@anchorneuroscience.com
Progressive Medical Research
Port Orange, FL 32127
Recruiting
Kyrie Allen
386-304-7070
kyriem@progressivemedicalresearch.com
Alzheimer's Research and Treatment Center
Wellington, FL 33414
Recruiting
Ashley Morrell
561-209-2400
amorrell@researchalz.com
Georgia
Atlanta Center for Medical Research
Atlanta, GA 30331
Recruiting
Grace Kalala
404-881-5800
gkalala@acmr.org
Columbus Memory Center
Columbus, GA 31909
Recruiting
Dawn Pitman
706-653-8455
research5@stork.md
iResearch Atlanta
Decatur, GA 30030
Recruiting
Zach Mitchell
404-537-1281
Zach.Mitchell@iResearchAtlanta.com
Indiana
Fort Wayne Neuroligical Center
Fort Wayne, IN 46804
Not yet recruiting
Mindy Schroeder
260-436-3991
mglass@fwnc.com
Fort Wayne Neurological Center
Fort Wayne, IN 46804
Recruiting
Debi Kocks
260-436-3991
dkocks@fwnc.com
Louisiana
Lake Charles Clinical Trials
Lake Charles, LA 70629
Withdrawn
Missouri
Millenium Psychiatric Associates
Saint Louis, MO 63132
Active, not recruiting
New York
Neurological Associates of Albany, P. C.
Albany, NY 12208
Recruiting
Dawn Kalbfliesh
518-426-0575
dkalbfliesh@naaresearch.com
North Carolina
Alzheimer's Research Center
Matthews, NC 28105
Recruiting
David Hughes
704-364-4000
dhughes@amcneurology.com
Oregon
Summitt Research Network (Oregon)
Portland, OR 97210
Recruiting
Lexi Voelker
503-972-9829
avoelker@summitnetwork.com
Washington
Kingfisher Cooperative
Spokane, WA 99202
Recruiting
Brenna McMahill
509-747-5615
brenna@nwn4me.com

Who Sponsors This Study?

Lead: Neurotrope Bioscience, Inc.

Collaborator Sponsor

  • National Institute on Aging

Source: ClinicalTrials.gov ID: NCT04538066