Please select the eligibility criteria that correspond to the clinical trial below.
Title: A Randomized Double-Blind Placebo-Controlled Trial Of The Effects Of Docosahexaenoic Acid (DHA) In Slowing The Progression Of Alzheimer's Disease
Brief Summary: The purpose of this study is to determine whether chronic DHA (Docosahexaenoic Acid) supplementation slows the progression of cognitive and functional decline in mild to moderate Alzheimer's disease (AD).


Options:
A: Inclusion Criteria:

* Male or female
* 50 years of age or older
* Residing in the community at baseline (includes assisted living facilities, but excludes long-term care nursing facilities)
* MMSE (Mini-Mental State Examination) at screen of 14-26 (inclusive)
* No medical contraindications to study participation
* Fluent in English or Spanish
* Corrected vision and hearing sufficient for compliance with testing procedures
* Supervision available for study medication
* Caregiver/study partner to accompany participant to all visits
* Study partner must have direct contact with the participant more than 2 days/week
* Able to ingest oral medication
* Daily DHA consumption less than or equal to 200 mg/day in prior two months estimated by an abbreviated DHA food frequency questionnaire
* Neuroimaging consistent with the diagnosis of AD at some time after the onset of the memory decline
* Clinical laboratory values must be within normal limits or, if abnormal, must be judged to be clinically insignificant by the investigator
* Stable use of cholinesterase inhibitors and memantine is permitted if doses are stable for 4 months prior to enrollment

Exclusion Criteria:

* Non-AD dementia
* Residence in a long-term care facility at baseline
* History of clinically significant stroke
* Modified Hachinski Ischemia score ≥ 4
* Current evidence or history in past two years of epilepsy, seizure, focal brain lesion, head injury with loss of consciousness or DSM-IV (Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition) criteria for any major psychiatric disorder including psychosis, major depression, bipolar disorder, alcohol or substance abuse
* Sensory impairment which would prevent subject from participating in or cooperating with the protocol
* Use of another investigational agent within two months
* Evidence of any significant clinical disorder or laboratory finding that renders the participant unsuitable for receiving an investigational new drug including clinically significant or unstable hematologic, hepatic, cardiovascular (including history of ventricular fibrillation or ventricular tachycardia), pulmonary, gastrointestinal, endocrine, metabolic, renal, or other systemic disease or laboratory abnormality
* Active neoplastic disease (skin tumors other than melanoma may be included; participants with stable prostate cancer may be included at the discretion of the Project Director)
B: Inclusion Criteria:

1. Diagnoses of possible or probable Alzheimer's disease (NINCDS-ADRDA)
2. Presence of a caregiver (friend or relative) who can assume responsibility for medication compliance, can accompany the patient to all visits, and rate patient's condition
3. Written informed consent from both the patient (or surrogate) and caregiver
4. An MMSE score between 12 and 26 inclusive
5. Administration of a maintenance dosage of donepezil (5-10mg/d), rivastigmine (6-12mg/d) or rivastigmine (Exelon) patch (4.6 mg or 9.5 mg), galantamine or galantamine ER (16-24mg/d) for a minimum of 4 weeks prior to randomization
6. Agreement not to take vitamin E supplements and/or memantine outside of the study (daily multivitamin is permitted containing up to 100 IU alpha-tocopherol)

Exclusion Criteria:

1. A non-Alzheimer primary dementia (e.g., vascular dementia, Lewy body dementia, fronto-temporal dementia, vitamin B-12 deficiency, hypothyroidism)
2. Current major depression, delirium, alcohol or psychoactive substance abuse or dependency, schizophrenia, or delusional disorder as defined by DSM-IV
3. Presence of any uncontrolled systemic illness that would interfere with participation in the study or a life expectancy of less than one year
4. Pregnant or intention to become pregnant
5. Enrollment in another interventional clinical trial
6. Current prescription with more than one AChE inhibitor
7. Current prescription for warfarin
8. Use of vitamin E supplements in the past 2 weeks
9. Use of memantine in the past 4 weeks or known intolerance
10. Estimated creatinine clearance less than 5ml/min (Cockcroft-Gault formula)
11. Use of amantadine in the past 2 weeks
C: Inclusion Criteria: Alzheimer's disease with MMSE 15-30, living in own homes, treated with stable dose of acetylcholine esterase inhibitor for \>3 months and remaining on that treatment for the study period

Exclusion Criteria: Already treated with omega-3 fatty acids, NSAIDs, warfarin, being an alcohol abuser, suffering from serious concomitant disease or not having a caregiver
D: Inclusion Criteria:

* The patient has dementia according to DSM IV criteria.
* The patient has an MMSE less than or equal to 26.
* The patient lives in his/her home.
* The patient is in the charge of a carer.
* Informed consent for participation in the study by the responsible relative and, if possible, from the patient or legal guardian.

Exclusion Criteria:

* The patient lives in an institution.
* The patient is in a terminal situation.
* The patient does not have a main carer.
* Patient has a nasogastric feed.

Answer: A