Mifepristone as Adjunctive Therapy in Alzheimer's Disease

NCT ID: NCT00105105

Last Updated: 2009-12-11

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

TERMINATED

Clinical Phase

PHASE2

Total Enrollment

160 participants

Study Classification

INTERVENTIONAL

Study Start Date

2003-04-30

Study Completion Date

2005-11-30

Brief Summary

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The purpose of this study is to evaluate the effects of C-1073 (Mifepristone) on cognition in patients with Alzheimer's disease (AD) who are also taking an acetylcholinesterase inhibitor (Aricept, Exelon or Reminyl).

Detailed Description

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This will be a double blind, placebo controlled study of C-1073 to evaluate the effects on cognition in patients with mild to moderate Alzheimer's disease who are already receiving an acetylcholinesterase inhibitor and have been on a stable dose for at least 12 weeks. Patients will be randomized (1:1) to either daily dosing with 300 mg C-1073 or a placebo for 16 weeks. Patients will continue the stable daily dose of acetylcholinesterase inhibitor throughout the study.

Visits will be weekly at the beginning of the study, then every two weeks, and every 4 weeks after week 12. Assessments during these visits may include cognition and behavior, depression, safety, as well as physical exams, clinical laboratory tests, EKG and adverse event reporting.

Conditions

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Alzheimer's Disease

Keywords

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Alzheimers cognition acetyl cholinesterase inhibitor GR-II antagonist

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

DOUBLE

Interventions

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Mifepristone

Intervention Type DRUG

Eligibility Criteria

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Inclusion Criteria

* Diagnosis of Alzheimer's disease
* Women must have had a partial or complete hysterectomy
* Mini Mental Status Evaluation score of 18-27
* HAM-D score less than or equal to 18
* Able to provide written informed consent
* On a stable dose of an acetylcholinesterase inhibitor for at least 12 weeks prior to screening visit
* Ambulatory, or ambulatory with walker or cane
* Sufficient hearing and vision to enable the patient to comply with the study procedures
* Caregiver available to participate in the assessment of the patient and monitor dosing

Exclusion Criteria

* Women with an intact uterus
* A clinically significant medical condition, including lab abnormality, which in the opinion of the investigator would place the patient at undue risk, or would impair the patient's ability to participate in the study. These include but are not limited to: history of cerebral vascular accident (CVA), adrenal insufficiency, porphyrias, autoimmune disorders, type I diabetes, chronic obstructive pulmonary disease (COPD), hematologic or oncologic disorders in the previous 2 years, vitamin B12 or folate deficiency
* A clinically significant active gastrointestinal, renal, hepatic, endocrine, or cardiovascular system disease that is not well controlled by diet, pharmacological treatment, or other therapeutic intervention
* History of psychotic episodes or bipolar disorder, or additional diagnosis of delusions, delerium, or depression
* Evidence of other psychiatric or neurologic disorders (e.g., stroke, schizophrenia, or Parkinson disease)
* Hachinski ischemia score of 5 or more
* Known hypersensitivity to cholinesterase inhibitors
* Use of systemic or pulmonary inhaled corticosteroids within the 30 days prior to randomization, or require use of these medications during the study
* Use of memantine (Namenda) within the 30 days prior to randomization, or require use of this medication during the study
* Currently taking medications known to significantly induce or inhibit the metabolism of CYP 3A4, or have taken these medications 7 days prior to randomization (see list below under prohibited medications)
* Use of anticholinergic compounds within the 30 days prior to randomization, or require use of this medication during the study
* History of electroconvulsive therapy (ECT); patients may not undergo ECT during the course of the trial
* Positive urine drug screen for any non-prescribed drug of abuse (including but not limited to amphetamines, cannabinoids, barbiturates, cocaine, opiates, benzodiazepines)
* History of illicit drugs usage or a history of drug or alcohol dependence
* Known to have another form of dementia that may also explain the patient's deficits including reversible dementias, Binswanger's, Parkinson's dementia complex, Korsakoff's, mental retardation or vascular dementia. Patients who meet clinical criteria for AD but who have deep white matter lesions on MRI or CT scan will be accepted.
* Currently taking prescription anticoagulants such as warfarin (Coumadin)
* Planned surgical procedures during the study period, including the 4 week off drug period between weeks 16 and 20
* Participation in a clinical investigation of any drug, or other biological or investigational therapy within 30 days prior to dosing
* Previous participation in a trial using mifepristone, or known sensitivity or allergy to C-1073 (mifepristone) or its constituents
* Body Mass Index (BMI) over 35

Prohibited Medications:

Medications known to significantly induce or inhibit the metabolism of CYP 3A4, specifically:

* carbamazepine (Carbatrol® Tegretol®)
* modafinil (Provigil®)
* nefazodone (Serzone®)
* droperidol
* erythromycin
* fluconazole (Diflucan®)
* itraconazole (Sporanox®)
* ketoconazole (Nizoral®)
* simvastatin (Zocor®)
* lovastatin (Mevacor®)
* vinblastine
* vincristine
* paclitaxel (Taxol®)
* tamoxifen (Nolvadex®)
* cyclosporine (Neoral®, Sandimmune®)
* tacrolimus (Gengraf®)
* sirolimus (Rapamune®)
* midazolam (Versed®)
* nicardipine (Cardene®)
* nifedipine (Adalat®, Procardia®)
* felodipine (Lexxel®, Plendil®)
* thioridizine
* pimozide (Orap®)
* quinidine
* Patient may also not take St. John's Wort during the study or within 7 days prior to study entry
* the use of grapefruit juice will be excluded during the course of the study.
* use of anticholinergic compounds over the past 30 days prior to randomization
* warfarin (Coumadin)
* all systemic and inhaled pulmonary corticosteroids
* memantine (Namenda)
Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Institute for the Study of Aging (ISOA)

OTHER

Sponsor Role collaborator

Corcept Therapeutics

INDUSTRY

Sponsor Role lead

Locations

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Pivotal Research Center

Mesa, Arizona, United States

Site Status

Pivotal Research Center

Peoria, Arizona, United States

Site Status

ATP Clinical Trials

Fountain Valley, California, United States

Site Status

UCI Irvine Medical Center

Orange, California, United States

Site Status

California Neuroscience Research Medical Group, Inc.

Sherman Oaks, California, United States

Site Status

AVI Clinical Research

Torrance, California, United States

Site Status

Baumel-Eisner Neuromed Inst

Boca Raton, Florida, United States

Site Status

Baumel-Eisner Neuromed Inst

Fort Lauderdale, Florida, United States

Site Status

Clinical Physiology Associates

Fort Myers, Florida, United States

Site Status

Baumel-Eisner Neuromed Inst

Miami Beach, Florida, United States

Site Status

Stedman Clinical Trials

Tampa, Florida, United States

Site Status

Johnnie B. Byrd, Sr. Alzheimer's Center & Research Inst

Tampa, Florida, United States

Site Status

Memory Enhancement Center

Long Branch, New Jersey, United States

Site Status

Eastside Medical Research

New York, New York, United States

Site Status

Neuro Center of Ohio

Toledo, Ohio, United States

Site Status

Pahl Pharmaceutical Research, LLC

Oklahoma City, Oklahoma, United States

Site Status

Clinical Pharmaceutical Trials, Inc.

Tulsa, Oklahoma, United States

Site Status

Clinical Trials Research Services

Pittsburgh, Pennsylvania, United States

Site Status

Grayline Clinical Drug Trials

Wichita Falls, Texas, United States

Site Status

International Clinical Research Associates

Richmond, Virginia, United States

Site Status

International Clinical Research Associates

Virginia Beach, Virginia, United States

Site Status

Countries

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United States

References

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Belanoff JK, Jurik J, Schatzberg LD, DeBattista C, Schatzberg AF. Slowing the progression of cognitive decline in Alzheimer's disease using mifepristone. J Mol Neurosci. 2002 Aug-Oct;19(1-2):201-6. doi: 10.1007/s12031-002-0033-3.

Reference Type BACKGROUND
PMID: 12212781 (View on PubMed)

Related Links

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http://www.corcept.com

Corcept Therapeutics

Other Identifiers

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IA0069

Identifier Type: -

Identifier Source: org_study_id