Track topics on Twitter Track topics that are important to you
Nevirapine (NVP) is recommended by WHO as the antiretroviral treatment to prevent HIV passing from mother to child. However, the once-daily oral administration results in poor patient compliance, and a long-acting injectable form of NVP is desirable. Using single-crystal X-ray diffraction and other characterization methods, we demonstrated NVP can form crystalline inclusion complex (IC) with the biodegradable hydrophobic poly(ε-caprolactone) (PCL), and investigated the potential of the NVP-PCL IC microparticles as a long-acting injectable solid form. Compared with pure NVP crystals and NVP/polylactide microparticles, the NVP-PCL IC crystals showed significantly decreased solubility and slower dissolution rate, making it more suitable to be developed to achieve sustained-release profiles. In addition, the NVP-PCL IC microparticles with an average diameter below 10 μm can be conveniently prepared by spray drying and are found to be easily injectable through a 25G needle. These results demonstrated the possibility of using drug-polymer IC microparticles as long-acting injectable forms, providing a new approach to design sustained-release drug products.
This article was published in the following journal.
Name: International journal of pharmaceutics
The anti-retroviral nevirapine has been detected in surface waters throughout South Africa and its effects on non-target aquatic animals are still unknown. The aim was to investigate the potential eff...
Oral pre-exposure prophylaxis (PrEP) prevents HIV infection in men who have sex with men (MSM); however, adherence is an ongoing concern. Long-acting injectable PrEP is being tested in phase 3 trials ...
Amorphous and crystalline materials differ in their long-range structural order. On the other hand, short-range order in amorphous and crystalline materials often appears similar. Here, we use a recen...
Polycaprolactone (PCL) was reported a long time ago; however, its biomedical applications has not been extensively investigated in comparison with poly(lactide-co-glycolide) (PLGA) due to its too slow...
Long-acting bronchodilators such as long-acting β-agonist (LABA), long-acting muscarinic antagonist (LAMA), and LABA/inhaled corticosteroid (ICS) combinations have been used in people with moderate t...
Hypothesis: Polycaprolactone / Tricalcium Phosphate Orbital (PCL / TCP) Implant is as effective in the reconstruction of the Orbital walls as Titanium Mesh implant. In this study we will...
The primary objective of this study is to evaluate the efficacy of 400 mg QD nevirapine extended release (NVP XR) formulation versus 200 mg BID nevirapine immediate release (NVP IR) in ARV...
This study aims to compare the trough plasma concentrations of nevirapine after 7 days of treatment at the full dose from baseline with dose escalation in patients taking efavirenz who swi...
The primary objective of this study is to demonstrate the efficacy of nevirapine extended release (NVP XR) based regimen for HIV-1 infected patients who were receiving nevirapine immediate...
Study of an Extended-Release, Crystalline Formulation of Recombinant Human Growth Hormone (ALTU-238) in Growth Hormone Deficient Adults to Determine Pharmacokinetics, Pharmacodynamics, and Drug Safety
ALTU-238 is a long acting crystalline formulation of recombinant human growth hormone (rhGH) that is being developed for the treatment of growth hormone deficiency in adults and children. ...
A long-acting dopamine agonist which has been used to treat PARKINSON DISEASE and HYPERPROLACTINEMIA but withdrawn from some markets due to potential for HEART VALVE DISEASES.
An insulin preparation that is designed to provide immediate and long term glycemic control in a single dosage. Biphasic insulin typically contains a mixture of REGULAR INSULIN or SHORT-ACTING INSULIN combined with a LONG-ACTING INSULIN.
One of the long-acting ANTIPSYCHOTIC AGENTS used for maintenance or long-term therapy of SCHIZOPHRENIA and other PSYCHOTIC DISORDERS.
Complex compounds where two cyclic molecules are interlaced together as links in a chain. They have potential use in NANOTECHNOLOGY.
Long acting sulfonamide antibacterial agent.
Reverse transcriptase (RT) is an enzyme used to generate complementary DNA (cDNA) from an RNA template, a process termed reverse transcription. It is mainly associated with retroviruses. RT inhibitors are widely used as antiretroviral drugs. RT activitie...
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 ...