View clinical trials related to Cancer.
Filter by:The immune response against tumors can be highly effective in preventing tumor development, growth and metastasis under certain circumstances. However, tumor associated immune suppression can profoundly limit the impact of natural tumor immunity and also reduce the effectiveness of tumor immunotherapy strategies. A major component of tumor associated immune suppression is mediated by myeloid cells, especially the monocytic subset of myeloid derived suppressor cells (MDSC). In recent studies that were conducted through a CCSRI Innovation grant, the investigators discovered that oral treatment of mice with the commonly used histamine receptor 2 (H2) antagonists ranitidine or famotidine inhibits both primary breast tumor development and metastasis, in three distinct mouse tumor models and reduces the numbers of monocytic MDSC. These findings have enormous potential to aid in effective cancer immunotherapy and may have immediate implications for cancer patients. The objective of this investigation is to determine whether treatment with the H2 receptor antagonist ranitidine alters immune suppression, through modulation of immune cell populations. The investigators will examine peripheral blood monocyte, neutrophil and NK cell numbers, subsets and activation status from healthy volunteers treated for 6 weeks with daily oral ranitidine. Ranitidine is widely available and used over the counter in Canada. These drugs are widely recognized as safe, well tolerated and have very few side effects. It has been suggested that among the general population, over 10% of those over the age of 65 take such medications on a regular basis for relief against gastrointestinal discomfort. The outcome of pre-clinical studies in mice warrant further investigation into transferability to humans. If the outcome of the current proposal proves to be viable, then these drugs could provide a safe method to reduce tumor associated immunosuppression with broad implications, both for current cancer patients and for those at high risk of developing cancer. Further to this, the outcome of our proposal may provide a new strategy for improving the effectiveness of T-cell mediated immunotherapy.
This is a Phase 1 study is to visualize biodistribution of a PET tracer called [18F]F-AraG (VisAcT) in cancer patients expected to undergo immunotherapy and/or radiation therapy.
The course of care of a patient with a cancer whose evolution is pejorative, is marked by difficult announcements, called "bad news". In the palliative phase, prognostic announcements are at the forefront. Of these, the announcement of a transfer to the Palliative Care Unit has not been the subject of any specific studies to the best of our knowledge. It therefore seemed interesting to us to explore the stakes of this particular announcement, a source of upheaval for the doctor and the patient, by gathering the point of view of each one. The objective of our study is to analyze the methods of announcing a transfer to the Palliative Care Unit and the perception of this announcement by the doctor and his patient with an incurable cancer.
This is an expanded access program (EAP) for eligible participants. This program is designed to provide access to VAL-083 (dianhydrogalactitol) prior to approval by the local regulatory agency. Availability will depend on territory eligibility. Participating sites will be added as they apply for and are approved for the EAP. A medical doctor must decide whether the potential benefit outweighs the risk of receiving an investigational therapy based on the individual patient's medical history and program eligibility criteria.
This is a two-part study consisting of Part A (dose regimen finding) followed by Part B (dose expansion). Part A (dose regimen finding) will allow definition of the maximum tolerated dose (MTD) through dose escalation and possible dose interval modification. In Part B (dose expansion), potential therapeutic doses may be studied with SC-004 as monotherapy and SC-004 in combination with ABBV-181 in disease-specific cohorts.
Study is enrolling newly diagnosed breast cancer patients about to start chemotherapy and age-matched control participants. The investigator is trying to better understand the prevalence of cognitive difficulties in cancer patients receiving chemotherapy compared to the general population as well as what biological mechanisms may play a role in the development of these difficulties. Patients will be asked to complete six assessments over the course of approximately 5 months. Assessments 1,3, 4.5 and 5 include computerized and paper and pencil cognitive testing as well as blood draws. Assessments 2 and 4 only involve the collection of a blood sample. An optional sub study is offered after Assessment 1. It involves a research brain MRI at Assessment 4.5 and cognitive testing and another research brain MRI at Assessment 6.
Cancer is the leading cause of death in man and the second leading cause in women with 85,000 and 63,000 deaths, respectively, in 2012. A working group led by Holly L. Howe, PhD, in 2002 defined primary neoplasia Such as the occurrence and diagnosis of two or more independent neoplasms of different histology in the same patient. The occurrence of a new cancer has become more frequent in recent years: the prevalence of multiple primary neoplasia (NPM) is estimated between 0.73% and 11.7%. According to the French data, the risk of second cancer in people who have already had a first cancer is increased by 36% compared to the general population. Several studies have reported an increase in the risk of cancer after treatment of lymphoma but there are currently no studies on the occurrence of lymphoma and cancer of synchronous occurrence. In our department, 19 patients presented cancer and lymphoma synchronously, that is to say 6 months between 2007 and 2012. The main objective is to show that there is an increase in the incidence of cancers in patients diagnosed for lymphoma synchronously. Secondary objectives are to describe the clinical and biological characteristics of the patients concerned and to formulate hypotheses on the physiopathological mechanisms involved: peri-tumoral B-cell lymphoproliferation, alteration of the immune system or rearrangement of the BCR. In a second step, the investigator could propose a multicenter epidemiological study using data from the different Cancer Registries. If results are confirmed in a larger cohort, recommendations could be made.
Cancer is the most important acquired risk factor of thromboembolisms. More than 20% of all episodes of venous thromboembolism (VT) or pulmonary thromboembolisms (PT) are cancer related. Cancer patients with VT or PT are treated with low molecular weight heparins (LMWH) during at least 3 months, but nowadays the duration of treatment is not accurately determined. The D-Dimer determination has been used like recurrence predictors after LMWH treatment suspension, but in cancer patients the useful is limited. Phospholipid-dependent microparticles could been used like recurrence predictors in cancer patients and tailored the duration of LMWH treatment for each patient.
This study tested the effects of emotion regulation strategies (reappraisal, reassurance, and empathy) on pain responses in children with cancer. Children with cancer were randomly assigned to one emotion regulation strategy during an experimental pain task (the cold pressor task [CPT]). During the CPT, children rated their pain and provided saliva samples immediately before, after, and then 15 minutes after the CPT. This study examined the influence of emotion regulation on self-reported pain and physiological activity assessed through saliva samples.
Collect blood samples and associated clinical data prior to, during, and post radiation treatment.