Predicting Drug-drug Interactions Due To Tyrosine Kinase Inhibitors: Inhibition Of Drug Metabolising Enzymes And Transporters
Funder
National Health and Medical Research Council
Funding Amount
$535,495.00
Summary
Tyrosine kinase inhibitors (TKIs) are a new class of anticancer agents. Cancer patients typically receive multiple drugs, for the treatment of cancer and other diseases, increasing the probability of interactions between coadministered drugs. Despite the widespread use of TKIs, their potential to cause drug interactions is poorly understood. Using novel in vitro approaches, this project will identify drug interactions precipitated by TKIs thereby improving drug efficacy and patient safety.
A Novel Metabolic Role For UDP Glycosyltransferase 8 (UGT8)
Funder
National Health and Medical Research Council
Funding Amount
$419,144.00
Summary
The UDP glycosyltransferases (UGTs) are a family of enzymes that remove drugs and toxins from the human body as well as control levels of naturally produced molecules such as bile acids and hormones. We found that a new member of this family called UGT8 processes bile acids in the kidney and intestine and can affect how bile acids act to regulate metabolism. Our studies uncover new roles for bile acids in liver, kidney and gut health and in metabolic disorders such as diabetes and obesity.
Stimulant laxatives are widely used and usually very effective in the short term, but how they work is very poorly understood. Our recent work has shown that they selectively excite sensory pathways from the colon which then trigger defaecation. This points to an undiscovered mechanism that potently affects colonic sensation and motility. This is likely to be a target for new treatments for other colonic disorders such as Irritable bowel syndrome and faecal incontinence.
Irritable Bowel Syndrome (IBS) is one of the leading causes of chronic pain both world-wide and in Australia for which there is a lack of treatments. Chronic pain arises from nerve fibres in the colon wall, which fail to 'reset' back to normal following inflammation. Targeting these nerve endings with drugs is a key advance in IBS treatment. This project will identify selective oxytocin analogues that act in the colon to lower pain in sensory nerves thus providing efficacious pain relief in IBS.
Personalised Medicine Markers Of Anti-EGFR Antibody Therapy In Metastatic Colorectal Cancer: Accelerating Clinical Translation With Collaborative Meta-analyses Based On Individual-participant Data
Funder
National Health and Medical Research Council
Funding Amount
$300,953.00
Summary
When selecting cancer therapy we take into account ‘biomarkers’, biological cancer characteristics that predict treatment success. We will work with an international group, the Advanced Colorectal Cancer Database, to analyse individual patient clinical trial data. We intend to validate biomarkers used to select treatment with cetuximab or panitumumab. Cancer genes called KRAS, NRAS, PTEN, PIK3CA, EREG and BRAF will be examined. Our study will provide best evidence for personalised treatment.
Pushing AR Toward Better Outcomes In Breast And Prostate Cancers
Funder
National Health and Medical Research Council
Funding Amount
$998,754.00
Summary
Breast and prostate cancers kill >6000 Australians each year. These cancers are strikingly similar, both driven by hormone receptors that have ‘gone bad’. Current therapies aim to eradicate the receptors. While often effective, therapeutic resistance is common and results in fatal disease. We aim to develop new, less toxic treatments that switch receptor behaviour from good to bad, without destroying them. This should improve quality of life, while preventing drug resistance and loss of lives ....Breast and prostate cancers kill >6000 Australians each year. These cancers are strikingly similar, both driven by hormone receptors that have ‘gone bad’. Current therapies aim to eradicate the receptors. While often effective, therapeutic resistance is common and results in fatal disease. We aim to develop new, less toxic treatments that switch receptor behaviour from good to bad, without destroying them. This should improve quality of life, while preventing drug resistance and loss of lives.Read moreRead less
Novel Interventions To Address Methamphetamines In Aboriginal Communities, Including A Randomised Trial Of A Web Based Therapeutic Tool Used To Treat Dependence In Clinical Settings.
Funder
National Health and Medical Research Council
Funding Amount
$2,177,908.00
Summary
Methamphetamine use in Aboriginal communities has gained much media attention, despite limited research studies to ascertain the full extent of its use and its impact. We propose a randomised trial of a web based therapeutic tool for use in Aboriginal Medical Services to treat clients using methamphetamines. In addition we will characterise the health and well-being of Aboriginal people who use methamphetamines and trial unique Aboriginal community led interventions to address methamphetamines.
A Randomised Controlled Trial (RCT) Of Azithromycin Versus Doxycycline For The Treatment Of Rectal Chlamydia Infection In Men Who Have Sex With Men.
Funder
National Health and Medical Research Council
Funding Amount
$797,906.00
Summary
Rectal chlamydia is very common among gay men; it can exist for long periods without symptoms leading to ongoing transmission. Azithromycin (1 gram single dose) or 7 days doxycycline (100mg twice daily) are the two recommended treatments globally. But, there is concern about rectal chlamydia treatment with reports of up to 22% failure following azithromycin. We will conduct a randomised trial to compare these treatments for rectal chlamydia and determine which drug works better.
Mab Immunotherapies For Myeloid Leukemia Patients With Germline Or Somatic RUNX1 Mutations.
Funder
National Health and Medical Research Council
Funding Amount
$766,995.00
Summary
This proposal presents preliminary evidence and proposes to confirm that 2 cell surface molecules, CD11a (ITGAL) and IL3RA (CD123) are direct (probably repression) targets of RUNX1 in HSCs, and are dysregulated in RUNX1 mutated AML. Monoclonal antibody therapies that target these two surface molecules have already passed different clinical trial phases for different diseases. We plan to show these antibodies are effective in RUNX1 positive AML in preclinical models and then clinical trials.
Determining The Prerequisites For The Achievement Of Treatment-free Remission In Chronic Myeloid Leukaemia To Facilitate The Development Of New Therapeutic Approaches With Curative Intent
Funder
National Health and Medical Research Council
Funding Amount
$1,318,775.00
Summary
Chronic myeloid leukaemia (CML) can usually be treated effectively with long-term tyrosine kinase inhibitor (TKI) therapy. Remarkably, rare patients who achieve excellent responses can stop treatment altogether without relapsing. Detailed studies of these patients in terms of their genetic background, the biology of their leukaemia and their immune response may help us understand how this is possible, leading to new therapeutic approaches to make treatment-free remission more widely achievable.