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The effect of fosamprenavir/ritonavir (steady state) on the pharmacokinetics of a single dose of olanzapine will be studied.
In this study, the investigators expect an inducible effect of fosamprenavir/ritonavir on the CYP1A2 and UGT metabolism of olanzapine.
Psychosis and other mental illnesses are commonly described in patients infected with the human immunodeficiency virus (HIV). New-onset psychosis is estimated to occur in up to 15% of patients infected with HIV while 5 to 7% of patients with HIV-infection suffer from pre-existing mental illnesses including schizophrenia. Olanzapine could be an attractive antipsychotic in HIV/AIDS patients with schizophrenia.
Because olanzapine is a substrate for both UGT and CYP1A2, the pharmacokinetics of olanzapine might be influenced by low-dose ritonavir in combination with fosamprenavir. The current study is designed to test this hypothesis. Furthermore, in this study we evaluate the safety of such combination.
Allocation: Randomized, Endpoint Classification: Pharmacokinetics Study, Intervention Model: Crossover Assignment, Masking: Open Label, Primary Purpose: Treatment
fosamprenavir/ritonavir, olanzapine, olanzapine
CRCN, Radboud Universtity Nijmegen Medical Centre
Published on BioPortfolio: 2014-08-27T03:19:19-0400
This is will be an open-label, fixed-sequence, multiple dose crossover study in 2 cohorts of 14 healthy male and/or female subjects, to estimate the effect of maraviroc on the pharmacokine...
This study is testing if under the tongue olanzapine for schizophrenia, related psychosis, schizoaffective disorder or bipolar disorder will have less weight gain than olanzapine that is s...
For HIV-infected individuals with highly resistant viruses, higher drug levels may be required to block the virus. This study investigates that concept by comparing the efficacy of standar...
The investigators hypothesis is that an antipsychotic drug combination of low-dose olanzapine plus low-dose trifluoperazine is similar to regular-dose olanzapine monotherapy in efficacy an...
The goals of this study are: A. To determine whether olanzapine can help patients with bipolar disorder who currently have mild to moderate mania. B. To assess the safety of olanza...
Olanzapine is commonly utilized in palliative care for the treatment of nausea, and a known side effect of olanzapine is increased appetite. Olanzapine is also known to cause re-emergence of eating di...
Atypical antipsychotics are known to be associated with electroencephalogram abnormalities. Olanzapine can lower seizure threshold and induce epileptiform discharges. However in patients on Olanzapine...
Chronic treatment with antipsychotics, especially most of atypical ones, leads to development of metabolic abnormalities. Olanzapine is an atypical antipsychotic widely used in the treatment of schizo...
Olanzapine is an atypical antipsychotic drug commonly used for the treatment of schizophrenia. However, there are still many complications associated with the use of olanzapine, and researchers contin...
Olanzapine is a commonly prescribed antipsychotic available as oral and long-acting injectable (LAI) formulations. Data are lacking on the use and safety of olanzapine-LAI in older patients. The aim o...
Inflammation of brain parenchymal tissue as a result of viral infection. Encephalitis may occur as primary or secondary manifestation of TOGAVIRIDAE INFECTIONS; HERPESVIRIDAE INFECTIONS; ADENOVIRIDAE INFECTIONS; FLAVIVIRIDAE INFECTIONS; BUNYAVIRIDAE INFECTIONS; PICORNAVIRIDAE INFECTIONS; PARAMYXOVIRIDAE INFECTIONS; ORTHOMYXOVIRIDAE INFECTIONS; RETROVIRIDAE INFECTIONS; and ARENAVIRIDAE INFECTIONS.
Viral infections of the leptomeninges and subarachnoid space. TOGAVIRIDAE INFECTIONS; FLAVIVIRIDAE INFECTIONS; RUBELLA; BUNYAVIRIDAE INFECTIONS; ORBIVIRUS infections; PICORNAVIRIDAE INFECTIONS; ORTHOMYXOVIRIDAE INFECTIONS; RHABDOVIRIDAE INFECTIONS; ARENAVIRIDAE INFECTIONS; HERPESVIRIDAE INFECTIONS; ADENOVIRIDAE INFECTIONS; JC VIRUS infections; and RETROVIRIDAE INFECTIONS may cause this form of meningitis. Clinical manifestations include fever, headache, neck pain, vomiting, PHOTOPHOBIA, and signs of meningeal irritation. (From Joynt, Clinical Neurology, 1996, Ch26, pp1-3)
Infections with viruses of the family PARAMYXOVIRIDAE. This includes MORBILLIVIRUS INFECTIONS; RESPIROVIRUS INFECTIONS; PNEUMOVIRUS INFECTIONS; HENIPAVIRUS INFECTIONS; AVULAVIRUS INFECTIONS; and RUBULAVIRUS INFECTIONS.
An HIV protease inhibitor that works by interfering with the reproductive cycle of HIV.
Pathogenic infections of the brain, spinal cord, and meninges. DNA VIRUS INFECTIONS; RNA VIRUS INFECTIONS; BACTERIAL INFECTIONS; MYCOPLASMA INFECTIONS; SPIROCHAETALES INFECTIONS; fungal infections; PROTOZOAN INFECTIONS; HELMINTHIASIS; and PRION DISEASES may involve the central nervous system as a primary or secondary process.
AIDS and HIV
AIDS; Acquired Immune Deficiency Syndrome. HIV; Human Immunodeficiency Virus HIV infection causes AIDS. HIV infection also causes the production of anti-HIV antibodies, which forms the test for HIV in patients. People who have the HIV antibodies are ...
Human Immuno Deficiency Virus (HIV)
Human Immunodeficiency Virus (HIV), the causative agent of AIDS. The Human Immunodeficiency Virus, more commonly known as HIV, is a member of the lentivirus sub-set of the retrovirus family of pathogens. It causes AIDS, or Acquired Immuno Deficiency Sy...