Novel Polymeric Formulation for Removal of Gastrointestinal Polyps by Digestive Endoscopy
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Materia
Endoscopic submucosal dissection (ESD) Injectable polymeric solution Mucosal elevation Sodium carboxymethylcellulose Hyaluronic acid
Date
2020-04Referencia bibliográfica
Moles-Aranda, C., Calpena-Campmany, A. C., Halbaut-Bellowa, L., Díaz-Tomé, V., Otero-Espinar, F. J., Morales-Molina, J. A., & Clares-Naveros, B. (2020). Novel Polymeric Formulation for Removal of Gastrointestinal Polyps by Digestive Endoscopy. Pharmaceutics, 12(4), 322. [doi:10.3390/pharmaceutics12040322]
Sponsorship
This research was funded by the local Regional Government of Andalusia (Junta de Andalucía), grant number PIN-0479-2016.Abstract
Endoscopic mucosal resection (EMR) and endoscopic submucosal dissection (ESD)
are two techniques used in the resection of gastrointestinal mucosal polyps. The aim of this
work is the development and evaluation of an innovative polymeric solution containing sodium
carboxymethylcellulose and hyaluronic acid. For this purpose, several mixtures of these two main
components, as well as other components such as fructose, citric acid, and zinc, are evaluated in terms
of physicochemical and microbiological properties, rheological behavior, extensibility, syringeability,
and stability at different storage conditions. Furthermore, the potential production of mucosal
elevation and duration is also studied by an ex vivo model using porcine stomach and colon. Results
show that the developed polymeric solutions possess optimal values of pH, from 4.58 to 6.63, for
their use in the gastrointestinal tract. The formulations exhibit both Newtonian and pseudoplastic
behaviors with different viscosity values as a function of their composition. All formulations exhibit
high stability properties and no bacterial or fungal growth is detected. MCS01 and MCS05 are the
polymeric solutions with the best syringeability results. In this line, MCS05 is the formulation that
provides the highest, 2.20 ± 0.18 cm and 1.40 ± 0.11 cm, and longest-lasting, for more than 120 min,
elevation effect on porcine submucosal stomach and colon tissues, respectively. Thus, it can be
concluded that polymeric solution MCS05 might be considered as a promising tool for use in human
EMR and ESD.