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Published on: April 6, 2017
Inhaled RNA Therapeutics for Obstructive Airway Diseases: Recent Advances and Future Prospects
You Xu1, Aneesh Thakur1, Yibang Zhang1,2
1Department of Pharmacy, Faculty of Health and Medical Sciences, University of Copenhagen, 2100 Copenhagen, Denmark.
Abstract:
Obstructive airway diseases, e.g., chronic obstructive pulmonary disease (COPD) and asthma, represent leading causes of morbidity and mortality worldwide. However, the efficacy of currently available inhaled therapeutics is not sufficient for arresting disease progression and decreasing mortality, hence providing an urgent need for development of novel therapeutics. Local delivery to the airways via inhalation is promising for novel drugs, because it allows for delivery directly to the target site of action and minimizes systemic drug exposure. In addition, novel drug modalities like RNA therapeutics provide entirely new opportunities for highly specific treatment of airway diseases. Here, we review state of the art of conventional inhaled drugs used for the treatment of COPD and asthma with focus on quality attributes of inhaled medicines, and we outline the therapeutic potential and safety of novel drugs. Subsequently, we present recent advances in manufacturing of thermostable solid dosage forms for pulmonary administration, important quality attributes of inhalable dry powder formulations, and obstacles for the translation of inhalable solid dosage forms to the clinic. Delivery challenges for inhaled RNA therapeutics and delivery technologies used to overcome them are also discussed. Finally, we present future prospects of novel inhaled RNA-based therapeutics for treatment of obstructive airways diseases, and highlight major knowledge gaps, which require further investigation to advance RNA-based medicine towards the bedside.
Insights
Novel inhaled RNA therapeutics offer a promising new avenue for treating obstructive airway diseases like COPD and asthma, addressing limitations of current treatments. Further research is needed to advance these advanced RNA medicines to clinical application.
Area of Science:
- Pulmonary Medicine and Pharmacology
- RNA Therapeutics and Drug Delivery
Background:
- Obstructive airway diseases, including chronic obstructive pulmonary disease (COPD) and asthma, are major global health burdens.
- Current inhaled therapies for these conditions have insufficient efficacy in halting disease progression and reducing mortality.
- There is a critical need for innovative therapeutic strategies to improve patient outcomes.
Purpose of the Study:
- To review the current state of inhaled therapeutics for COPD and asthma, focusing on quality attributes.
- To explore the therapeutic potential and safety of novel drug modalities, particularly RNA therapeutics.
- To discuss advancements in manufacturing, formulation, and delivery challenges for inhalable solid dosage forms and RNA therapeutics.
Main Methods:
- Comprehensive literature review of conventional inhaled drugs for COPD and asthma.
- Analysis of recent advances in manufacturing thermostable solid dosage forms for pulmonary administration.
- Discussion of delivery technologies and challenges for inhaled RNA therapeutics.
Main Results:
- Inhalation provides targeted drug delivery to airways, minimizing systemic exposure.
- RNA therapeutics present opportunities for highly specific treatment of airway diseases.
- Progress has been made in developing inhalable dry powder formulations, but clinical translation faces obstacles.
Conclusions:
- Novel inhaled RNA-based therapeutics hold significant promise for treating obstructive airway diseases.
- Overcoming delivery challenges for inhaled RNA therapeutics is crucial for clinical success.
- Further research is essential to bridge knowledge gaps and advance RNA medicine from the lab to the bedside.
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