None listed
Conditions
Brief summary
This study will investigate whether two interventions; omega-3 fatty acids supplements (fish oil) and the antidepressant, sertraline, are able to reduce or prevent depression and cognitive change. The study will run over 12 months and participants will be randomly allocated to one of the interventions or to a placebo condition. Participants will be assessed at different time points by telephone interviews, self report surveys, medical examinations and brief psychological assessments. These assessments will look at the effectiveness of the two interventions in reducing symptoms of depression and/or new cases of depression and reducing cognitive decline (e.g. changes in memory, concentration and thinking) associated with ageing. Additionally, because depression is believed to have a biological basis and because both these interventions influence brain activity, participants will also be invited to have three brain scans over the time of the study. We hope to track the effects of fish oil and sertraline on the brain changes associated with the normal ageing.
Interventions
Sponsors
Study design
Eligibility
Inclusion criteria
To be eligible participants must: - Have provided written informed consent before any trial procedures are undertaken - Be aged 60 years or older, and - have a lifetime history of depressive symptoms (defined as a K-10 score ranging from 16 to 29) meaning that participants included in the trial will be at greater risk of depression.
Exclusion criteria
Participants will be excluded if they: - Have a history of stroke/other serious cerebro or cardiovascular illness, neurological, psychiatric or neurodegenerative disease or other significant illness; Show clinically relevant levels of depression on the Patient Health Questionnaire (PHQ-9) at the time of screening or, receive a diagnosis of depression based on the Structured Clinical Interview for DSM-IV-TR Axis I Disorders (SCID-I) at the time of completing the medical assessment; Are suicidal at the time of screening or at the time of completing the medical assessment; Show abnormal liver function or; Are currently taking anti-depressant medications and it is deemed unadvisable by the trial psychiatrist to cease these medications for the period of the trial.