Genome-wide Expression Analysis In Advanced Gastric Cancer
Funder
National Health and Medical Research Council
Funding Amount
$326,761.00
Summary
Gastric cancer is the fourth ranked cancer by mortality in Australia. Therapy of gastric cancer is unsatisfactory for two reasons; firstly, how normal stomach cells become cancerous is not well defined. We know long-term infection with the bacteria Helicobacter can lead to these cancers, as can severe acid reflux. The cancers produced by these very different agents look remarkably similar, but must be arising through different pathways. Research to date has not yielded great insight. Secondly, e ....Gastric cancer is the fourth ranked cancer by mortality in Australia. Therapy of gastric cancer is unsatisfactory for two reasons; firstly, how normal stomach cells become cancerous is not well defined. We know long-term infection with the bacteria Helicobacter can lead to these cancers, as can severe acid reflux. The cancers produced by these very different agents look remarkably similar, but must be arising through different pathways. Research to date has not yielded great insight. Secondly, existing therapy, especially chemotherapy, tends to provide a Oone size fits all? solution. Whatever the cause, removal at surgery is the best option for treatment. After this, patients are often treated with chemotherapy. Although improvements in patient comfort have been made, very few patients are cured as a result of this treatment. We need more information with which to match the right patient with the right therapy. We will perform high-throughput analysis of comprehensive arrays of human genes that are affected in gastric cancer. Biopsies from cancerous and normal tissue will be obtained when patients have surgery. This tissue will have the RNA (the Omessage? from each gene) labelled with chemical tags and then applied to DNA Omicrochips?. Each microchip contains about 5000 gene targets; the RNA binds the matching DNA and produces a light reaction. We can read the light output from these 5000 (or more) signals, and perform complex statistical analysis on the results. This will result in several specific Ogene expression profiles? which we will analyse to see which profiles match each situation. Profiles matching reflux-induced cancer and Helicobacter-induced cancer can be compared. This will suggest what unique processes are occurring in the cancer cells. Profiles of patients responding well to therapy may allow the use of Otailor-made? therapy. In the future, insight into cancer pathways should also allow the design of new and more successful therapies.Read moreRead less
Value Of Androgen Deprivation And Bisphosphonate Therapy In Patients Treated By Radiotherapy For Limited Prostate Cancer
Funder
National Health and Medical Research Council
Funding Amount
$1,757,375.00
Summary
Prostate cancer depends for its growth on the male hormone, testosterone, which circulates in the blood. As a result treatment which reduces testosterone level ('androgen deprivation'[AD] therapy) can produce clinically important shrinkage of prostate cancer. Each year approximately 4000 men in Australia and New Zealand develop prostate cancer which has not spread widely and which is amenable to attempted cure by surgery or radiation. Results from recent trials, including a large trial run in Au ....Prostate cancer depends for its growth on the male hormone, testosterone, which circulates in the blood. As a result treatment which reduces testosterone level ('androgen deprivation'[AD] therapy) can produce clinically important shrinkage of prostate cancer. Each year approximately 4000 men in Australia and New Zealand develop prostate cancer which has not spread widely and which is amenable to attempted cure by surgery or radiation. Results from recent trials, including a large trial run in Australia and New Zealand by the Trans-Tasman Radiation Oncology Group (TROG) between 1996 and 2000, suggest that 6 months AD will benefit many of these men if administered in conjunction with radiotherapy.The aim of this project is to run a further trial to find out whether 12 months of AD, after radiotherapy will prevent the need for further treatment and prolong more lives than only 6 months AD. Bisphosphonate treatment also offers important benefits to prostate cancer patients because it can increase bony stregth by increasing its density and can also arrest cancerous growth in bones. A further aim of the trial therefore is to determine whether 18 months of bisphosphonate therapy (BP) will prevent bone loss (osteoporosis) caused by AD, and also further reduce the risk of secondary bone cancer developing. This trial will involve recruitment of 1000 men across Australia and New Zealand over a 5 year period. When complete the trial will determine whether further treatment can be delayed and life prolonged in up to half of all men in whom treatment presently fails. This grant will support collection of patient data and the necessary quality checks to ensure that reliable conclusions can be drawn.Read moreRead less
Radiotherapy Vs Chemotherapy For Low-grade Gliomas Stratified For Genetic 1p Loss: Efficacy And Quality Of Life Benefits
Funder
National Health and Medical Research Council
Funding Amount
$410,316.00
Summary
Low-grade glioma is an uncommon malignant brain tumour. Surgery, radiotherapy and chemotherapy delay growth of this tumour, but cure is uncommon. Currently the goal of treatment is to control tumour growth for as long as possible whilst maintaining quality of life. This study compares treatment with radiotherapy with a new form of chemotherapy to see which treatment controls tumour growth most effectively, which produces the least side effects and which results in the better quality of life.
A Randomised Trial Of Adjuvant Chemotherapies In Resectable Pancreatic Cancer: ESPAC-3
Funder
National Health and Medical Research Council
Funding Amount
$430,500.00
Summary
Over 1,650 Australians are diagnosed with pancreatic cancer each year. In most cases, surgery will remove the tumour but it is possible that the cancer will return as a result of undetectable disease (micrometastases). The cancer will return and be incurable in the majority of patients. More than 1600 Australians die of the disease every year. This study compares the impact of adding chemotherapy to surgery alone (the current standard of care). The study will also compare the effectiveness of tw ....Over 1,650 Australians are diagnosed with pancreatic cancer each year. In most cases, surgery will remove the tumour but it is possible that the cancer will return as a result of undetectable disease (micrometastases). The cancer will return and be incurable in the majority of patients. More than 1600 Australians die of the disease every year. This study compares the impact of adding chemotherapy to surgery alone (the current standard of care). The study will also compare the effectiveness of two different types of chemotherapy. Surgical resection of a pancreas tumour is the current standard of care for this disease. It is possible that people treated with chemotherapy after their tumour has been surgically removed may live longer before their disease returns and may liver longer overall. This has been shown to be true in other in cancers; eg. breast and bowel. The side effects of chemotherapy are important and can be severe in some people. Recent studies in advanced pancreatic cancer have suggested that the new drug gemcitabine may be more effective than other drugs. For this reason, the trial compares the outcomes in people treated with gemcitabine to those treated with an older drug 5FU, which has been shown to improve survival in an earlier study by a European group. This trial will determine if chemotherapy in addition to surgery increases the length of time before the disease comes back and survival. If it does, it should become standard practice. This study is an important international initiative that will provide unique information about effectiveness of these treatments and their impact on quality of life from the patient's perspective. This study and the previous European study are the largest of their type ever done. 900 people will take part. This study is being conducted in Australia by the Australasian Gastro-Intestinal Trials in collaboration with the Australian Hepatobilary Association and the NHMRC Clinical Trials Centre.Read moreRead less
Prevention Of Late Breast Cancer (BC) Events In Postmenopausal Women With Endocrine Responsive BC.
Funder
National Health and Medical Research Council
Funding Amount
$4,687,599.00
Summary
This proposal is from Australia's national breast cancer (BC) trials group, the ANZ BCTG, for a new phase III, multi-centre clinical trial evaluating whether much later endocrine therapy with an aromatase inhibitor can prevent BC recurrence in postmenopausal women who have: had hormone sensitive BC at least 6 years ago; were treated by Tamoxifen more than 1 year ago; and, are currently disease free. Subjects will randomly receive letrozole or placebo as a daily tablet for five years.
Optimal Duration Of Neoadjuvant Androgen Deprivation Therapy In Localised Prostate Cancer
Funder
National Health and Medical Research Council
Funding Amount
$275,000.00
Summary
Each year approximately 8000 men in Australia and New Zealand develop prostate cancer which has not spread widely and which is amenable to attempted cure by surgery or radiation. Prostate cancer depends for its growth on the male hormone, testosterone, which circulates in the blood. As a result treatment which reduces testosterone level ('androgen deprivation' [AD] therapy) can produce shrinkage of prostate cancer. In fact AD has caused temporary but valued relief to millions of men with cancer ....Each year approximately 8000 men in Australia and New Zealand develop prostate cancer which has not spread widely and which is amenable to attempted cure by surgery or radiation. Prostate cancer depends for its growth on the male hormone, testosterone, which circulates in the blood. As a result treatment which reduces testosterone level ('androgen deprivation' [AD] therapy) can produce shrinkage of prostate cancer. In fact AD has caused temporary but valued relief to millions of men with cancer of the prostate that has spread throughout the body for the last five decades, worldwide. It remains uncertain however whether AD administered before surgery or radiation will benefit any of the 8000 men each year who develop localised cancer by shrinking the cancer first. In 1996 a trial involving 800 men across Australia and New Zealand commenced under the auspices of the Trans-Tasman Radiation Oncology Group (TROG) to answer the questions: 1 - Does either 3 or 6 months AD prior to radiotherapy reduce the chances of recurrence of the cancer after radiotherapy? 2 - Does such therapy reduce the volume of tissue requiring radiotherapy and hence the chances of long term side effects after radiotherapy? This grant will support collection of follow-up information from the trial and hence answers to the questions asked.Read moreRead less
Randomised Trials Of Adjuvant Cytotoxic & Endocrine Therapy For Early N+ And N- Breast Cancer
Funder
National Health and Medical Research Council
Funding Amount
$510,509.00
Summary
This application covers 4 adjuvant early breast cancer trials currently part of the Australian New Zealand Breast Cancer Trials Group's national research programme. These trials are international collaborations involving the International Breast Cancer Study Group (IBCSG). Two of the studies concern pre, peri and post-menopausal women with early breast cancer and no involved lymph glands (IBCSG 8 and 9), and two concern pre, peri and post-menopausal women with early breast cancer and involved ly ....This application covers 4 adjuvant early breast cancer trials currently part of the Australian New Zealand Breast Cancer Trials Group's national research programme. These trials are international collaborations involving the International Breast Cancer Study Group (IBCSG). Two of the studies concern pre, peri and post-menopausal women with early breast cancer and no involved lymph glands (IBCSG 8 and 9), and two concern pre, peri and post-menopausal women with early breast cancer and involved lymph glands (IBCSG 13 and 14). In the absence of a definitive cure, the largest gains will come from optimal use of current therapies and new therapies to improve survival, and where possible, to reduce morbidity without the loss of efficacy. These four trials can realistically expect to produce important gains with potential benefit to the many women who are diagnosed with early breast cancer each year. The active accrual period for these studies is complete but all patients are currently on life long follow-up. Patients accrued to trial 8 have a clinical assessment 3 monthly to 2 years, 6 monthly to 5 years, and then annually. For trials 9, 13 and 14 women have a clinical assessment 3 monthly during year 1, 6 monthly for year 2 and then annually.Read moreRead less
Clinical Trial Of Adjuvant Docetaxel And Doxorubicin For Node Positive Breast Cancer.
Funder
National Health and Medical Research Council
Funding Amount
$185,135.00
Summary
This project is investigating the optimal use of docetaxel and doxorubicin in the treatment of women with breast cancer and involved lymph nodes (N+). Every year 3000 women in Australia, and over 400,000 worldwide are newly diagnosed with N+ breast cancer. Using available treatments more than 60% of these (5 per day in Australia, 4,500 each week worldwide) will die from breast cancer. The efficacy of adjuvant chemotherapy in early breast cancer is well established by the international overview c ....This project is investigating the optimal use of docetaxel and doxorubicin in the treatment of women with breast cancer and involved lymph nodes (N+). Every year 3000 women in Australia, and over 400,000 worldwide are newly diagnosed with N+ breast cancer. Using available treatments more than 60% of these (5 per day in Australia, 4,500 each week worldwide) will die from breast cancer. The efficacy of adjuvant chemotherapy in early breast cancer is well established by the international overview conducted by the Early Breast Cancer Trialist's Collaborative Group (EBCTCG). They have demonstrated the efficacy of adjuvant chemotherapy on reducing mortality and recurrence rates, but current regimens are far from optimal. Docetaxel (Taxotere), a new agent, has effectiveness and manageable side effects in the treatment of advanced breast cancer patients, and can plausibly improve outcomes for patients with early N+ breast cancer by optimal integration into current adjuvant chemotherapy regimens. This clinical trial is designed to compare whether it is advantageous to use docetaxel and-or doxorubicin in combination or sequentially with other currently available chemotherapy drugs.Read moreRead less