ArticleDrug delivery and translational research2025
Development of 4-phenylbutyric acid microsponge gel formulations for the treatment of lewisite-mediated skin injury.
Article in Drug delivery and translational research, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
4 citing papers in PubMed.
- Vacuum compression-molded polyvinyl alcohol microneedles for sustained three-day transdermal delivery of palonosetron hydrochloride.Drug delivery and translational research · 2026Article
- Emulsome-Based Nanocarrier System for Controlled 4-Phenylbutyric Acid Delivery and Mechanistic Mitigation of Arsenical-Induced Skin Injury via Foam Application.Pharmaceutics · 2025Article
- Sustained delivery of 4-phenylbutyric acid via chitosan nanoparticles in foam for decontamination and treatment of lewisite-mediated skin injury.International journal of pharmaceutics · 2025Article
- Development of Transdermal Drug Delivery Approaches to Combat Diabetes: An Update.Current drug metabolism · 2025Review
Corrections and comments
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Authors and funding
10 authors.
Funding
Abstract
Lewisite, a chemical warfare agent, causes skin blisters, erythema, edema, and inflammation, requiring mitigation strategies in case of accidental or deliberate exposure. 4-phenyl butyric acid (4-PBA), a chemical chaperone, reduces endoplasmic reticulum stress and skin inflammation. The study aimed to encapsulate 4-PBA in microsponges for effective, sustained delivery against lewisite injury. Porous microsponges in a topical gel would potentially sustain delivery and improve residence time on the skin. Microsponges were developed using the quasi-emulsion solvent diffusion method with Eudragit RS100. Optimized formulation showed 10.58%w/w drug loading was incorporated in a carboxymethylcellulose (CMC) and Carbopol gel for in vitro release and permeation testing using dermatomed human skin. A sustained release was obtained from all vehicles in the release study, and IVPT results showed that compared to the control (41.52 ± 2.54 µg/sq.cm), a sustained permeation profile with a reduced delivery was observed for microsponges in PBS (14.16 ± 1.23 µg/sq.cm) along with Carbopol 980 gel (12.55 ± 1.41 µg/sq.cm), and CMC gel (10.09 ± 1.23 µg/sq.cm) at 24 h. Optimized formulation showed significant protection against lewisite surrogate phenyl arsine oxide (PAO) challenged skin injury in Ptch1
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.