ANZCTR search results

These search results are from the Australian New Zealand Clinical Trials Registry (ANZCTR).

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31615 results sorted by trial registration date.
  • Does starting children on an insulin pump improve how blood vessels work due to less variable blood glucose levels?

    We already know that blood glucose levels relate to the long term vascular complications in type I diabetes. There have been other studies that suggest that blood glucose variability (i.e. how much the blood glucose levels vary through the day) may also be an important factor. The purpose of this study is to look at blood vessel function and glucose variability in children whilst they are on insulin injections compared with shortly after starting an insulin pump. The hypotheses to be tested are: •Commencing children with type I diabetes on a insulin pump improves how blood vessels work •Commencing children with type I diabetes on a insulin pump reduces glucose variability •The improvement in how the blood vessels is due to reduced glucose variability independent of other changes in vascular risk factors.

  • Evaluation of Mental Health First Aid Educational Materials - a Randomised Controlled Trial

    The University of Melbourne recruited adult members of the general public in an evaluation of educational materials, which teach skills in helping someone with a mental health problem. Participants were asked to complete 3 online questionnaires of approximately 20 minutes each (over a seven month period), to gauge their knowledge, attitudes and behaviours towards people with mental health problems. Jorm AF, Kitchener BA, Fischer JA, Cvetkovski S in press, Mental health first aid training by e-learning: a randomized controlled trial, Australian and New Zealand Journal of Psychiatry.

  • Survival of bacteria on the ocular surface following double application of povidone-iodine before cataract surgery

    To assess the incidence of positive preoperative conjunctival cultures with two (at time of periorbital anaesthetic block and in theatre approximately 15 minutes later) in comparison with one (at time of the anaesthetic block only) applications of 5% povidone-iodine solution to the operative eye before phacoemulsification cataract surgery. Ultimately to assess whether microbial recontamination occurs after the initial application of povidone-iodine, and thus whether two applications of povidone-iodine are necessary in order to reduce the rate of positive preoperative conjunctival cultures.

  • Intravenous versus oral iron supplementation for correction of post-transplant anaemia in renal transplant patients.

    PROJECT RATIONALE AND OBJECTIVES Post-transplant anaemia (PTA) remains a common problem after kidney transplantation, with an incidence ranging from nearly 80% at day 0 to about 25% at 1 year. It has been associated with poor graft outcome, and recently has also been shown to be associated with increased mortality. PTA may occur at any time after renal transplantation. Early PTA (post surgery until 3 months) is most likely to be related to pre-transplant anaemia, the surgery itself, iron deficiency, immunosuppression and infection. Later PTA is more likely to be related to consequences of long-term immunosuppression or a failing graft. All the large scale studies to date have focused mainly on late PTA, and there is a lack of studies looking at the management of early PTA, in particular, the optimal management of iron deficiency. Our unit routinely administers oral ferrous sulphate to all post transplant patients, however this is not without problems including gastrointestinal intolerance, and interference with the absorption of immunosuppressant medications by leading to significant constipation. Recently, we have observed that several dialysis patients serendipitously given intravenous iron for treatment of iron deficiency anaemia immediately prior to transplantation, have had better Hb levels in the post-transplant period, without needing oral iron supplementation. In a retrospective case series, Gillespie and Symonds used intravenous ferrous gluconate to treat 15 paediatric and young adult renal transplant recipients and found that doses of up to 250mg induced a statistically significant increase in mean haemoglobin levels. There were only 4 adverse events reported in 3 patients, all self limiting and none life threatening.9 However, there are no trials to date comparing the efficacy of intravenous versus oral iron replacement. We surmise that giving a single dose of intravenous iron (as ferrous gluconate - Ferrosig®) may be better than a protracted course of oral iron. Aim To compare the time to normalisation of Hb post-transplant in patients given a single dose of iv iron as compared with oral iron. STUDY PROTOCOL AND METHODS 1. Patients All adult patients receiving a renal transplant at the Princess Alexandra Hospital will be invited to participate in the study. Informed consent will be obtained from all participants. Inclusion criteria 1.New live or cadaveric donor renal transplant recipient 2.18 years or over 3.Able to give written informed consent. Exclusions 1.Patients with transferrin saturation >50% or ferritin >800µg/l. 2.Women lactating, pregnant or of child-bearing potential not using a reliable contraceptive method. 3.Patients with a history of psychological illness or condition which interferes with their ability to understand or comply with the requirements of the study. 4.Patients who have received a new investigational drug within the last 4 weeks. 5.Intolerance of intravenous or oral iron supplements 6.As the following medications can have interactive effects, they cannot be administered during the course of the study: -All new investigational medications Design: This is an open-label, randomised, controlled clinical trial in which the primary outcome measure will be the mean time to resolution of PTA (defined as Hb =110 g/l). Patients meeting the inclusion criteria and consenting to participate in the study will be randomly allocated in a 1:1 ratio to either (a) oral iron (ferrous sulphate slow-release 2 tablets mane – the most current practice in the transplant unit) or (b) intravenous iron polymaltose as a 500 mg single dose given within the first 5 days after transplantation. Randomisation will occur by the use of sequentially numbered, sealed, opaque envelopes with stratification for calcineurin inhibitor type (cyclosporin or tacrolimus). Immunosuppressive therapy will be managed according to our unit’s standard protocols. Patients will have blood tests checked as per our unit’s follow up protocol for recent transplant recipients. We would use these to monitor full blood count, renal function, and calcineurin inhibitor trough levels on a weekly basis, as well as iron studies, B12, and folate at one monthly intervals. Power and Statistical Analysis Prospective power calculations have indicated that a minimum of 48 patients in each group would have to be followed up for 3 months in order to have a 90% probability of detecting a halving of the time to correction of haemoglobin levels to =110 g/l in iron-treated patients, assuming an a of 0.05. Adverse Events During the Investigation Each patient will be observed closely during the period of the study looking for adverse events. The patient will be removed from the study on clinical grounds in the event of any significant adverse reaction and will then be investigated extensively for the cause. Pre-existing conditions will be excluded from reporting; treatment-emergent signs and symptoms as well as post-treatment adverse events will be recorded on the Adverse Event Case Report Form. Any significant adverse events will be notified to the Ethics Committee of PAH. Gastrointestinal adverse effects will be defined as the onset of nausea, vomiting, abdominal cramping or diarrhoea. Infusion related reactions will be described as self-limiting flushing sweating, chills, myalgias, arthralgias, bronchospasm and chest pain occurring at the time of the infusion. All infectious episodes and the results of subsequent microbiological investigation will be recorded during the study period. CLINICAL TRIAL DRUGS A standard slow-release oral ferrous sulphate (Ferro-gradumet®, Abbott) one tablet daily (equivalent to 105 mg of elemental iron per day) or single intravenous dose of Iron polymaltose (Ferrosig®, Sigma, 500 mg) will be used. PROCEDURES INVOLVING THE SUBJECT Patients enrolled in the study will have no extra blood samples collected beyond those normally collected as part of routine transplant follow up. ASSESSMENT OF PATIENTS The treating renal physician will be required to give his or her approval prior to patient inclusion in the study.

  • Prevalence of Musculoskeletal Pain and Shoulder Disability in Open Heart Surgical Patients pre-operatively and at six and twelve weeks post-operatively: a prospective longitudinal observation study.

    This study aims to determine the extent of muscular and joint pain and shoulder disability in patients who have undergone open-heart surgery. Resarch questions are: what is the prevalence, type and area of musculsoskeletal pain, and shoulder disability pre-operatively, at six and at 12 weeks post-operatively? What is the prevalence of sternal clicking at 6 and 12 weeks post-operation. What is the level of patient compliance with home exercise advice? What are the variables associated with the development of post-operative musculoskeletal complications? Hypothesis is that 30% patients develop new musculoskeletal pain post-open heart surgery which is apparent at 6 weeks post operation and that this pain will return to pre-operative levels by 12 weeks post-operation.

  • Use of patient incentives to improve prevention of ischemic heart disease in general practice

    The purpose of this pilot trial is to explore the effectiveness of a patient incentive for attendance for cardiovascular risk assessment in general practice. Our hypothesis is that a patient incentive will be effective in encouraging attendance for cardiovascular risk assessment in general practice. Strategies to increase attendance for risk assessment are a first step toward improved prevention of heart disease in general practice.

  • The CHOICE (Choice of health options in prevention of cardiovascular events) replication trial.

    Sudden heart events are a major health problem and account for about 22% of Australian deaths annually. However, more than 80% of survivors don’t enrol in programs aimed at lowering another attack. We have previously shown that first time survivors who do not use existing cardiac rehabilitation programs have higher coronary risk factors yet were prepared to participate in a brief, guided-choice modular program which resulted in showed significantly improved risk factor level and would lower their chance of a future heart event. The benefit was apparent at 3 months and maintained at 1 year. Given the importance of these findings we aim to determine whether they can be replicated across a range of hospitals and to determine whether periodic reinforcement improves outcomes further and for 3 years.

  • Detection of recombinant human luteinising hormone (rLH) as a doping agent

    Sports anti-doping study

  • A prospective study to examine the effectiveness and safety of antivirals in volunteers who receive short-term prophylaxis against pandemic influenza

    This aim of this project is to evaluate the efficacy of neuraminidase inhibitors as short-term prophylaxis against pandemic influenza infection in people who have close familial contact with the disease. The study is observational only. The primary measure used in this study will be the incidence of symptomatic pandemic influenza in patients receiving prophylaxis. Seroconversion to pandemic influenza, the incidence of adverse events and the relative effectiveness of oseltamivir and zanamivir prophylaxis will also be examined. This project will commence upon pandemic influenza being declared in Australia, Hong Kong or Singapore. Data will be analysed as quickly as possible to help inform the continued use of neuraminidase inhibitor therapy as a cornerstone of the public health agency response to pandemic influenza.

  • A prospective study to examine the effectiveness and safety of neuraminidase inhibitors in volunteers who receive long-term prophylaxis against pandemic influenza: PIPET B

    This aim of this project is to evaluate the efficacy of neuraminidase inhibitors as prophylaxis against pandemic influenza infection in patients who are prescribed a long term course in the context of a place of employment or profession. The study is observational only. The primary measure used in this study will be the incidence of symptomatic pandemic influenza in patients receiving prophylaxis. Seroconversion to pandemic influenza, the incidence of adverse events and the relative effectiveness of oseltamivir and zanamivir prophylaxis will also be examined. This project will commence upon pandemic influenza being declared in Australia, Hong Kong or Singapore. Data will be analysed as quickly as possible to help inform the continued use of neuraminidase inhibitor therapy as a cornerstone of the public health agency response to pandemic influenza.

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