Safety, Efficacy, Pharmacokinetics, and Pharmacodynamics Study of Bryostatin 1 in Patients With Alzheimer's Disease

Blanchette Rockefeller Neurosciences Insitute

Status and phase: Unknown; Phase 2

Conditions: Alzheimer's Disease

Treatments: Drug: Placebo; Drug: Bryostatin for Injection

Study type: Interventional

Funder types: Other

Identifiers

NCT00606164

BRY-201

Details and patient eligibility

About

The main purpose of this study is find out how safe a single dose of bryostatin 1 is in patients with Alzheimer's Disease (AD). This study is also being done 1) to determine how effective a single dose of bryostatin 1 is in the treatment of AD, 2) to find out what happens to bryostatin 1 once it enters the body by measuring the levels of bryostatin 1 in blood, and 3) to measure a substance in the blood (protein kinase C) that may help to better understand how bryostatin 1 works.

Enrollment: 9 estimated patients

Sex: All

Ages: 50+ years old

Volunteers: No Healthy Volunteers

Inclusion criteria

• Male or female, age 50 yrs or older. Females must be of non-childbearing potential (surgically sterilized or at least 2 yrs post-menopausal)
• Must have a cognitive deficit present for at least 1 yr & meet DSM-IV-TRTM criteria for AD & meet NINCDS/ADRDA criteria for the presence of probable AD
• Severity of AD must be mild to moderate, documented with a MMSE score of 12-26
• Has a CT scan or MRI scan within the prior 12 months, which is compatible with a diagnosis of probable AD
• Ability to walk, at least with an assistive device
• Vision & hearing sufficient to comply with testing
• Normal cognitive & social functioning prior to onset of dementia
• Consistent caregiver to accompany patient to assessment visits
• Sufficient basic education to be able to complete the cognitive assessments
• Living outside an institution
• Informed consent signed & dated by patient or legal representative
• Has provided written authorization for the use & disclosure of protected health information

Exclusion criteria

• Dementia due to any condition other than AD, including vascular dementia (modified Hachinski Ischemic Scale ≥ 5; positive NINDS-AIREN criteria)
• Evidence of clinically significant unstable cardiovascular, renal, hepatic, gastrointestinal, neurological, or metabolic disease within the past 6 months (as determined by medical history, ECG results, chest x-ray, or physical examination)
• Use of any drug within 14 days prior to randomization unless the dose of the drug & the condition being treated have been stable for at least 30 days & are expected to remain stable during the study & neither the drug nor the condition being treated is expected to interfere with the study endpoints
• Any medical or psychiatric condition that may require medication or surgical treatment during the study
• Life expectancy less than 6 months
• Any other screening laboratory values outside the normal ranges that are deemed clinically significant by the investigator
• Use of an investigational drug within 30 days prior to the screening visit or during the entire study
• Significant neurological disease other than AD, including cerebral tumor, Huntington's Disease, Parkinson's Disease, normal pressure hydrocephalus, & other entities
• Major depression according to DSM-IV
• Psychotic episodes requiring hospitalization or antipsychotic therapy for more than 2 weeks within the past 10 yrs, not linked to AD
• Agitation sufficient to preclude participation in this trial
• Alcohol or drug dependence diagnosed within the past 10 yrs
• Epilepsy or anti-epileptic drug therapy
• Abnormal laboratory tests that might point to another etiology for dementia: serum B12, folate, thyroid functions, electrolytes, syphilis serology
• Musculoskeletal diseases that could interfere with assessment
• Acute or poorly controlled medical illness: blood pressure> 180 mmHg systolic or 100 mmHg diastolic; myocardial infarction within 6 months; uncompensated congestive heart failure (NYHA Class III or IV), severe renal, hepatic or gastrointestinal disease that could alter drug pharmacokinetics; blood glucose > 180 mg/dl on repeated testing at entry into study or need for insulin therapy
• Previous randomization in this trial or participation in another investigational trial < 2 months prior to randomization
• Likelihood, according to clinical judgment, of being transferred to a nursing home within 6 months
• Change in dosage of any concomitant antidepressant within 30 days prior to randomization
• Lack of caregiver
• Pregnant or lactating females
• Patients who in the judgment of the Investigator may be unreliable or uncooperative with the evaluation procedures outlined in this protocol
• HIV positive
• Hepatitis B or C positive
• Concomitant use of medications other than AD or antidepressant medications for which the dose regimens are stabilized for at least 30 days prior to enrollment in study

Trial design

Primary purpose: Treatment

Allocation: Randomized

Interventional model: Parallel Assignment

Masking: Quadruple Blind

---

9 participants in 3 patient groups, including a placebo group

Placebo

Placebo Comparator group

Treatment:

Drug: Placebo

10 ug/m2 Bryostatin

Experimental group

Treatment:

Drug: Bryostatin for Injection

15 ug/m2 Bryostatin

Experimental group

Treatment:

Drug: Bryostatin for Injection