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Oral Nirmatrelvir for High-Risk, Nonhospitalized Adults with Covid-19
Nirmatrelvir is an M
pro
inhibitor active against SARS-CoV-2 and is given with ritonavir, a pharmacokinetic enhancer. In this double-blind, placebo-controlled trial, nirmatrelvir plus ritonavir, when given within 5 days after symptom onset to patients at high risk for disease progression, decreased the risk of Covid-19–related hospitalization or death by 87.8%.
Journal Article
Treatment of Highly Drug-Resistant Pulmonary Tuberculosis
Treatment options for highly drug-resistant tuberculosis are limited. In this study in South Africa, a new agent, pretomanid, was combined with bedaquiline and linezolid for a 26-week course to treat extensively drug-resistant and complicated multidrug-resistant pulmonary TB. Although there were toxic effects, 90% of patients had favorable outcomes.
Journal Article
Oral controlled release formulation design and drug delivery
This book describes the theories, applications, and challenges for different oral controlled release formulations.This book differs from most in its focus on oral controlled release formulation design and process development.
eBook
Trial of Apremilast for Oral Ulcers in Behçet’s Syndrome
In a phase 3 trial involving patients with Behçet’s syndrome, the small-molecule phosphodiesterase 4 inhibitor apremilast reduced the number of oral ulcers and pain of ulcers and improved quality-of-life measures as compared with placebo over 12 weeks. Adverse events included diarrhea, nausea, and headache.
Journal Article
Risdiplam in Type 1 Spinal Muscular Atrophy
The small molecule risdiplam increased the expression of SMN protein in blood in 21 infants with type 1 spinal muscular atrophy. Post hoc clinical features of sitting ability and respiratory status were reported.
Journal Article
Single-Agent Divarasib (GDC-6036) in Solid Tumors with a KRAS G12C Mutation
Among patients with cancers bearing the
KRAS
G12C mutation who received divarasib at a 400-mg dose, 56% with lung cancer, 36% with colorectal cancer, and 36% with other tumor types had a confirmed response.
Journal Article
Nintedanib for Systemic Sclerosis–Associated Interstitial Lung Disease
Patients with interstitial lung disease associated with systemic sclerosis were treated with usual care plus placebo or nintedanib. The annual rate of change in forced vital capacity assessed over a 52-week period was −52.4 ml per year with nintedanib and −93.3 ml per year with placebo. There were no differences in other measures of systemic sclerosis.
Journal Article
Oral delivery of protein and peptide drugs: from non-specific formulation approaches to intestinal cell targeting strategies
The past few years has witnessed a booming market of protein and peptide drugs, owing to their superior efficiency and biocompatibility. Parenteral route is the most commonly employed method for protein and peptide drugs administration. However, short plasma half-life protein and peptide drugs requires repetitive injections and results in poor patient compliance. Oral delivery is a promising alternative but hindered by harsh gastrointestinal environment and defensive intestinal epithelial barriers. Therefore, designing suitable oral delivery systems for peptide and protein drugs has been a persistent challenge. This review summarizes the main challenges for oral protein and peptide drugs delivery and highlights the advanced formulation strategies to improve their oral bioavailability. More importantly, major intestinal cell types and available targeting receptors are introduced along with the potential strategies to target these cell types. We also described the multifunctional biomaterials which can be used to prepare oral carrier systems as well as to modulate the mucosal immune response. Understanding the emerging delivery strategies and challenges for protein and peptide drugs will surely inspire the production of promising oral delivery systems that serves therapeutic needs in clinical settings.
Journal Article
Lactobacillus rhamnosus GG induces cGAS/STING- dependent type I interferon and improves response to immune checkpoint blockade
ObjectiveOur goals were to evaluate the antitumour efficacy of Lactobacillus rhamnosus GG (LGG) in combination with immune checkpoint blockade (ICB) immunotherapies on tumour growth and to investigate the underlying mechanisms.DesignWe used murine models of colorectal cancer and melanoma to evaluate whether oral administration of LGG improves the efficacy of ICB therapies. We performed the whole genome shotgun metagenome sequencing of intestinal contents and RNA sequencing of dendritic cells (DCs). In a series of in vitro and in vivo experiments, we further defined the immunological and molecular mechanisms of LGG-mediated antitumour immunity.ResultsWe demonstrate that oral administration of live LGG augmented the antitumour activity of anti-programmed cell death 1 (PD-1) immunotherapy by increasing tumour-infiltrating DCs and T cells. Moreover, the combination treatment shifted the gut microbial community towards enrichment in Lactobacillus murinus and Bacteroides uniformis, that are known to increase DC activation and CD8+tumour recruitment. Mechanistically, treatment with live LGG alone or in combination with anti-PD-1 antibody triggered type I interferon (IFN) production in DCs, enhancing the cross-priming of antitumour CD8+ T cells. In DCs, cyclic GMP-AMP synthase (cGAS)/stimulator of IFN genes (STING) was required for IFN-β induction in response to LGG, as evidenced by the significant decrease in IFN-β levels in cGAS or STING-deficient DCs. LGG induces IFN-β production via the cGAS/STING/TANK binding kinase 1/interferon regulatory factor 7 axis in DCs.ConclusionOur findings have offered valuable insight into the molecular mechanisms of live LGG-mediated antitumour immunity and establish an empirical basis for developing oral administration of live LGG as a combination agent with ICB for cancer therapies.
Journal Article