There are about 9403 clinical studies being (or have been) conducted in Switzerland. The country of the clinical trial is determined by the location of where the clinical research is being studied. Most studies are often held in multiple locations & countries.
RATIONALE: Taking part in a clinical trial may help children with cancer receive more effective treatment. PURPOSE: Determine why patients who are eligible for protocols made available through the Pediatric Oncology Group do not enroll in them, and develop strategies to increase enrollment on these clinical trials.
RATIONALE: Radiation therapy uses high-energy x-rays to damage tumor cells. It is not yet known whether receiving radiation therapy or no further therapy after surgery is more effective for cancer of the uterus. PURPOSE: Randomized phase III trial to compare the effectiveness of radiation therapy with that of no further therapy in treating patients who have stage I or stage II cancer of the uterus that has been surgically removed.
PRIMARY: To evaluate the efficacy of valacyclovir hydrochloride (BW 256U87) in the prevention of cytomegalovirus (CMV) end-organ disease in HIV/CMV co-infected patients with CD4+ lymphocytes < 100 cells/mm3. To assess the impact of BW 256U87, high-dose oral acyclovir and low-dose oral acyclovir on survival. SECONDARY: To evaluate the effect of BW 256U87 on quality of life, the safety of the drug administered concurrently with standard antiretroviral agents and other essential therapies for the treatment and prevention of opportunistic diseases, and the efficacy of BW 256U87 in suppressing activation of other herpesviruses. To evaluate serologic and virologic risk factors for the development of CMV disease, including assessment of HIV activation, and the risk of developing drug-resistant CMV, HSV, and VZV. Gastrointestinal absorption of acyclovir is not high enough to prevent CMV disease in patients with advanced HIV disease, although there is evidence that high doses of the drug may extend survival. Valacyclovir, a prodrug that is rapidly converted to acyclovir after oral administration, has a higher absorption rate and may therefore provide inhibitory activity against CMV.