Details of stream 3 studies

A Novel Psychological Intervention for Bipolar Disorder

Principal Investigator: Mitchell
A common cause of relapse in the management of Bipolar Disorder is poor medication adherence – which correlates with low levels of acceptance of illness and high levels of denial. While several psychosocial treatments have been developed for Bipolar Disorder, they do not focus upon the difficulties in acceptance of, and adaptation to illness. We have developed a novel psychological intervention for Bipolar Disorder, modified from schema-focused cognitive therapy, and commenced a pilot evaluation (funded by Rotary) of its efficacy, using a randomised controlled trial (comparing to treatment as usual). Once this trial is completed, further interventions will be tested, after determining the predictors of optimal response and identifying the critical components of therapy.

Aetiology-based Treatment of Non-melancholic Disorders

Principal Investigator: Parker
A secondary hypothesis of our central study is that aetiological non-melancholic disorder distinction made by the Personality Measure is supported by differential treatment response. Indirect testing will occur in our case panel and other studies, but direct testing will involve a randomised controlled study comparing differing interventions (standard and ones under development) for principal non-melancholic sub-groups sub-divided on the basis of their temperament and personality style. Key results will shape further intervention studies.

Antidepressants in Pregnancy and Infant Outcomes

Principal Investigator: Austin
The impact of antidepressants in pregnancy has been of great concern to both women and clinicians. There is now evidence that mild and short-lived withdrawal symptoms can arise in a small proportion of infants. However the degree of exposure in pregnancy and the impact on longer-term neurobehavioural outcomes is not so well documented. This study based at the Royal Hospital for Women in Sydney is examining these questions and a multicentre study is now being planned to increase recruitment capacity.

Case finding in General Practice

Principal Investigator: Wilhelm
Depression is the second highest cause of medical morbidity (behind heart disease) and most cases are seen in general practice. Undetected cases of depression cause increased medical and psychiatric morbidity, use of unnecessary investigations. We pursue several different case-finding strategies, including use of the DMI-10 measure.

Choosing your options: a creative approach to deliberate self-harm

Principal Investigator: Wilhelm
Deliberate self harm (DSH) accounts for 1-5% of public hospital admissions but follow-up is challenging. Causes are being studied.

Cognitive Behavioural Therapy and Mindfulness Based Cognitive Therapy for Depression

Principal Investigator: Parker
Cognitive Behavioural Therapy (CBT) involves teaching people skills and strategies to manage negative thoughts and behaviours that are associated with depression. CBT has been studied for over 20 years, and there is good evidence that it is effective as a treatment for depression. However, researchers are still not sure how CBT works in helping depression. Mindfulness Based Cognitive Therapy (MBCT) is a new variant of CBT, which involves teaching people to make simple shifts in their awareness of thoughts, feelings and bodily sensations. MBCT has been shown to be effective in preventing relapse, but has not yet been used as a treatment for depression. This study will compare group MBCT and CBT as treatments for depression, and examine how these treatments work.

Computer-based Depression Assessment Tool

Principal Investigator: Parker
The purpose of this study is to develop a standardised assessment measure which might be used by general practitioners and other health practitioners to develop a diagnostic and formulation template to assist management decisions.

Depression and Somatization: Treatment of Complex Patients

Principal Investigator: Wilhelm
Patients with a mix of depression and multiple somatic complaints have multiple attendances in general practice and hospital outpatient clinics and generate multiple medical investigations. Previous studies have identified such patients as more likely to have a depressive or anxiety disorder, often neither recognised nor treated. We propose to test a particular intervention in an innovative treatment comparison study.

Drug Trials

Principal Investigator: Multiple studies with differing Principal Investigators
Most researchers are involved in undertaking Randomised Controlled Trials (RCTs) of antidepressant and mood stabiliser medications designed and sponsored by various pharmaceutical companies. A number of the researchers are on Australian and International advisory bodies for the development of new drugs.

Enhancing Resilience in Clinical Disorders

Principal Investigator: Wilhelm
Our study of sex differences in the expression of depression led to qualitative focus group studies and models for examining how men and women cope with depression. We will study a novel intervention (the use of narrative) to invoke mastery. If the writing technique proves effective, we will test other techniques (eg problem solving and other self-mastery techniques), building on work demonstrating the importance of patient choice.

Laser Acupuncture in Depression

Principal Investigator: Im Quah-Smith
Acupuncture has been used for the treatment of mental health problems for over one thousand years. In this case we are exploring the effectiveness of laser acupuncture in the treatment of depression. Medical acupuncturists use both needle and laser acupuncture as their treatment modalities. Laser acupuncture is both pain free and has no risk of infection. The treatment series involves laser acupuncture twice weekly for 4 weeks then once weekly for another 4 weeks. After that,
follow up questionnaires are to be completed at 4 weeks and 12 weeks after the last laser acupuncture. The participants will be streamed into either a placebo laser or real laser intervention. Those who receive placebo will be invited back for real laser acupuncture treatment. Participants have to be off their antidepressant medication and/or herbals for at least one month, and not had acupuncture for at least 3 months.

Micro Studies of Treatment Effectiveness

Principal Investigator: Parker
In addition to involvement in large RCTs, three small studies will pursue our clinical observations, examining

  1. the newer antidepressants as mood stabilizers, (ii) the capacity of atypical antipsychotic drugs to augment antidepressant drugs, and
  2. the impact of age and depressive sub-type on antidepressant effectiveness – perhaps explaining the decreased effectiveness over time for some antidepressants (so-called “poop-out”).

Mild Brain Stimulation as a Treatment for Depression

Principal Investigator: Loo
Mild brain stimulation (also know as direct current stimulation, DCS) is a potential alternative to medication and electroconvulsive therapy for depressed patients. Very weak currents are used to stimulate the brain through the scalp. The stimulation is painless with no known serious side effects. Subjects will be fully awake and alert during the 20 minute treatment. tDCS is currently being offered as a treatment in research studies by the University of NSW, at the Black Dog Institute building, on site of Prince of Wales Hospital, Sydney. The study is particularly suitable for those seeking an alternative to medication or who are unable to tolerate medications or ECT.

Mindfulness-Based Cognitive Therapy for Bipolar Disorder Study

Principal Investigator: Manicavasagar
An innovative maintenance treatment for Bipolar Disorder is now being offered that aims to reduce relapse of bipolar episodes as well as reduce levels of stress and anxiety. Mindfulness meditation has been shown to reduce rates of relapse in unipolar depression but this has yet to be investigated in bipolar disorder.
The program involves random allocation to either mindfulness-based cognitive therapy or treatment as usual (with the addition of bipolar education material). The therapy will be conducted in a group run by psychologists and is held on a weekly basis for 8 weeks in Randwick.

Screening for Depression in the Medically Ill

Principal Investigator: Parker
Identification of depression may be confounded in patients with a medical illness by the presence of illness-related factors. The 10-item Depression in the Medically Ill [DMI-10] instrument is a self-report measure designed for use in this population. Numerous studies of its properties are being undertaken.

Vagus Nerve Stimulation (VNS) for the treatment of Resistant Depression, using the NeuroCybernetic Prosthesis (NCPÒ) System

Principal Investigator: Sachdev
The vagus nerve connects the brain to visceral organs such as the heart, lungs and the gastrointestinal tract. It carries a large amount of information from the body organs to the brain that has an impact on limbic activity Stimulation of the Vagus Nerve has been known for some time to control epilepsy. More recent studies have shown that such stimulation can help depression as well. Two studies of VNS for resistant depression have been conducted in the United Sates, and a trial was recently started in Europe. The efficacy of this treatment remains to be established, but if successful, it will be great advance in the management of very treatment-resistant patients. We plan an open label, non-randomized, single-arm, longitudinal study of up to 25 patients, following them for 18 weeks in the first instance, and for a lengthier period for those who choose to remain in the study.