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Filter by:Voriconazole is a new drug developed to treat fungal infections. As of March 1999, the drug had been studied in more than 1,900 healthy volunteers or patients with fungal infections. This study will test extended use of voriconazole in patients with serious fungal infections for which there are no approved therapies, and in patients who did not improve with or could not tolerate standard therapy. It will evaluate the drug's safety, effectiveness, and toleration in these patients. Patients previous enrolled in protocol 99-C-0094 who improved with voriconazole treatment are eligible for this study. Before beginning treatment, patients will have a physical examination, including blood and urine tests, and an eye examination. They may also have X-ray or CT imaging. Voriconazole will then be given twice a day either by infusion into a vein or by tablets taken by mouth for up to 12 weeks. Patients will be examined at weeks 4, 8 and 12 of the study and one week after treatment stops. Blood and urine samples will be collected at each visit. An eye examination will be done at the end of the treatment period and at other visits if vision problems develop. Voriconazole is active against fungal infections and may produce fewer side effects than standard therapy.
Fever and infection are serious complications of cancer treatment such as bone marrow transplant, especially when white blood cell counts are low. When the number of white blood cells is below 500, the person has a condition called neutropenia and has a high risk of developing an infection. At the first sign of fever, antibiotics are started. However, antibiotics do not kill fungus germs, and fungal infections may be difficult to treat. Thus, the prevention of fungal infections in this population is important. The only medicine approved for prevention of fungal infections is fluconazole, which prevents some but not all types of such infections. A new antifungal medication called FK463 works against more types of fungal infections than fluconazole does. This study will compare the effectiveness, safety, and tolerance of FK463 as compared with fluconazole. Eight hundred patients will be enrolled in this study. They will be randomly assigned to receive either fluconazole or FK463. Before the medicine is begun, a physical exam as well as a blood sample, mouth swab, urine sample, and chest x-ray will be done. The fluconazole or FK463 will be administered once a day for one hour into the bloodstream through a catheter in the vein. Blood tests will be taken twice a week. Cultures from the blood, mouth, and urine will be taken throughout the study. X-rays and CT scans will only be taken if a fungal infection is suspected. If fever develops, blood will be drawn to check for fungi. If fever and neutropenia continue for more than 4 days, FK463 or fluconazole will be stopped and a standard medication called amphotericin B will be started. Both FK463 and fluconazole will be administered until white blood cell count returns to greater than 500 (signifying recovery from neutropenia), or up to 42 days after transplantation. Patients will be evaluated 4 weeks after the medicine is stopped.
The objective of this study is to evaluate the efficacy, safety and toleration of voriconazole in the primary treatment of systemic or invasive fungal infections due to fungal pathogens for which there is no licensed therapy; and in the secondary treatment of systemic or invasive fungal infections in patients failing or intolerant to treatment with approved systemic antifungal agents. This trial is a Phase II multicenter, open label study investigating the utilization of voriconazole for the treatment of systemic or invasive fungal infections. Enrollment is targeted for 150 patients to be recruited from multiple centers. The patient population will consist of patients with proven, deeply invasive fungal infection for which there is no licensed therapy or if the patient is failing or intolerant to treatment with approved systemic antifungal agents. Voriconazole will be administered initially by a loading dose of 6 mg/kg q12 hours for the first two doses followed by 4 mg/kg q12 hours. Efficacy will be evaluated by clinical, radiological and microbiological response.
The objective of this study is to evaluate the safety, tolerance, and pharmacokinetics of FK463, a novel echinocandin (cell wall-active antifungal lipopeptide), as early empirical therapy for prevention of fungal infections in immunocompromised children. The study is designed as a multicenter open label, sequential dose escalation study of intravenous FK463. Intravenous FK463 will be administered daily as an hour infusion to patients with new onset of fever and neutropenia (absolute neutrophil count less than or equal to 500/mm3) who will be initiated onto broad spectrum empirical antibacterial therapy. The patient population consists of children ages 2 to 17 years of age; two age cohorts will be studied (2-12, 13-17). Dosage levels will be 0.5mg/kg/day (not to exceed 25 mg/day), 1.0 mg/kg/day (not to exceed 50 mg/day), 1.5 mg/kg/day (not to exceed 75 mg/day) and 2.0mg/kg/day (not to exceed 100mg/day). The planned sample size is 64 patients (a maximum of two replacement patients may be added to a given dose level and age cohort, for a total of no more than 10 patients per dose level and age cohort. The study will enroll no more than 80 patients). At each dosage level, a total of 8 patients will be enrolled into each age cohort (2-12, 13-17); a total of 16 patients will be enrolled into each dosage level. The first group of patients will receive FK463 at 0.5 mg/kg/day (not to exceed 25 mg/day). The second group of patients will receive 1.0 mg/kg/day (not to exceed 50mg/day). The third group of patients will receive 1.5 mg/kg/day (not to exceed 75 mg/day). The fourth group of patients will receive 2.0mg/kg/day (not to exceed 100mg/day). Study drug will continue until recovery from neutropenia (ANC post nadir greater than or equal 250/mm3) or until the initiation of conventional deoxycholate amphotericin B or a lipid formulation of amphotericin B for empirical antifungal therapy or for proven fungal infection. Patients may receive FK463 for a maximum duration of 14 days. For any patient who meets institutional criteria to start standard empirical antifungal therapy with conventional deoxycholate amphotericin B or a lipid formulation of amphotericin B (greater than 96 hours on study drug) or who has a proven breakthrough fungal infection, FK463 will be discontinued and conventional deoxycholate amphotericin B or a lipid formulation of amphotericin B will be initiated.
Invasive fungal infections are often life-threatening in persons with immunocompromise. Persons with prolonged neutropenia secondary to cytotoxic chemotherapies are at high risk for these infections. Patients undergoing bone marrow transplantation, receiving prolonged corticosteroid or other immunosuppressive therapies, and persons with HIV infection and AIDS are also at risk. With the use of currently approved antifungal therapy, many of these infections may still be associated with a high mortality. Amphotericin B in its conventional form, is the current standard treatment for most life-threatening fungal infections. Because of its nephrotoxicity and other adverse effects, alternatives to conventional amphotericin B have been sought. Alternated agents include three lipid formulations of amphotericin B, fluconazole, itraconazole. Although all of these agents are associated with a decrease in adverse effects, their efficacy in most life-threatening fungal infections has not been shown to be equivalent to conventional amphotericin B. Voriconazole is an investigational antifungal drug currently being brought to phase III trials in the US. This azole has been shown active against many fungal pathogens in vitro. In animal models and early human trials this new agent has been shown to be effective against aspergillosis. It has been shown to be well-tolerated and is available in an intravenous and oral formulation. This is a non-comparative, open label study to evaluate the efficacy, safety and toleration of voriconazole in the treatment of invasive fungal infections. This agent will be used as primary therapy in those fungal infections in which no antifungal agent is currently approved or in patients unable to tolerate the approved agent. Voriconazole will also be used as a secondary treatment in those patients who have failed therapy with the primary approved agent or are unable to tolerate that agent or have unacceptable toxicity.
This protocol describes a prospective, randomized study examining the safety and efficacy of Itraconazole for preventing fungal infections in patients with Chronic Granulomatous Disease (CGD). CGD is a genetic disorder in which phagocytes are unable to produce oxygen radicals. As a result, affected patients are prone to recurrent, severe infections with bacterial and fungal organisms. Patients with CGD of 5 or more years of age without evidence of infection at the time of study entry will be eligible for enrollment. Patients will be randomized to receive itraconazole or placebo tablets daily, in a double blinded fashion. In addition to itraconazole, all patients will receive antimicrobial prophylaxis against bacterial infection, and may in addition receive gamma-interferon as prophylaxis against infection. Randomization of patients will be stratified among patients receiving or not receiving gamma interferon. The primary endpoint of the study will be the development of culture or histologically proved invasive fungal disease. Patients will be monitored every three months for evidence of drug toxicity. The anticipated accrual period will be approximately 36-48 months.
The purpose of this study is to compare the safety and effectiveness of 2 treatments to prevent invasive fungal infections (IFI), which are infections caused by yeasts and molds that are common in patients with weak immune systems or transplant patients. AmBisome, a new treatment, will be compared to fluconazole, the traditional treatment for fungal infections caused by the yeast Candida. Treatment will only be given to liver transplant patients who are found to be at high risk for IFI. Liver transplant patients who are at low risk for IFI will be monitored but will receive no study medication. IFIs are found mainly in a high risk group of liver transplant patients, and are not common in those with low risk. If IFI preventive therapy is focused on the high risk group, there may be a lesser chance of Candida becoming resistant (able to grow despite the presence of drugs used to kill it). Treating only the high risk group will also save money.
To determine the effects of fluconazole and either rifabutin or clarithromycin, alone and in combination, on the pharmacokinetics of first sulfamethoxazole-trimethoprim and then dapsone in HIV-infected patients. Although prophylaxis for more than one opportunistic infection is emerging as a common clinical practice in patients with advanced HIV disease, little is known about possible adverse drug interactions. The need exists to define pharmacokinetics and pharmacodynamic adverse interactions of the many combination prophylactic regimens that may be prescribed.
To study the effectiveness, safety, and tolerance of fluconazole versus clotrimazole troches (lozenges) as prophylaxis (preventive treatment) against fungal infections in patients enrolled in ACTG 081 (a study of prophylaxis against pneumocystosis, toxoplasmosis, and serious bacterial infection). Primarily, to compare the rates of invasive infections by C. neoformans, endemic mycoses, and Candida. To compare the mortality rates due to fungal infections between two antifungal prophylactic treatments. Secondarily, to assess the effect of prophylaxis on the incidence of severe fungal infections, defined as invasive infections and esophageal candidiasis and less severe mucocutaneous infection. Serious fungal infections are significant complicating and life-threatening occurrences in patients with advanced HIV infection. Oropharyngeal candidiasis is found in almost all such patients, and causes pain, difficulty in swallowing, and loss of appetite. Similarly, esophageal candidiasis causes illness in the population. Cryptococcosis, endemic mycoses, and coccidioidomycosis also cause significant illness and death in AIDS patients. Once established, fungal infections in AIDS patients generally require continuous suppressive therapy because attempts at curing these infections are usually unsuccessful. Fluconazole has a number of characteristics that would make it a logical candidate to examine as a prophylactic agent in patients with advanced HIV infection. Animal studies have shown it to be prophylactic in models of candidiasis, cryptococcosis, histoplasmosis, and coccidioidomycosis. Initial experience in patients with active cryptococcal meningitis appears favorable, and studies of oropharyngeal candidiasis show it to be effective.