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Polymer-Free Injectable In Situ Forming Nanovesicles as a New Platform for Controlled Parenteral Drug Delivery Systems

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Abstract

Purpose

In this study, the preparation of self-assembled polymer-free in situ forming nanovesicles (ISNs) based on non-ionic surfactants (NISs) is presented.

Methods

A 22·41 full factorial experimental design was adopted for the development of novel polymer-free ISNs loaded with tenoxicam utilizing the emulsion method. The type of NIS (Brij® 52 or Span® 60), the cholesterol percentage (30, 50, or 60 w/w%), and the internal phase percentage (20 or 30 v/v%) were chosen as the independent variables. Percentage drug released after 1 h (Q1), vesicle particle size (PS), and mean dissolution time (MDT) were the dependent variables. Selected formulation was investigated morphologically using transmission electron microscopy.

Results

Results revealed that the formation had spherical dense shape. All independent factors significantly affected the percentage drug release after the first hour (Q1), and the MDT, while only the type of NIS had a significant effect on PS. The highest control of drug release was observed in formulation containing Span® 60 with lower internal phase percentage (MDT = 20.06 ± 0.40 h) as well as the smallest PS (123.75 ± 16.68 nm).

Conclusion

The obtained results indicated the potentiality of the invented ISNs in controlling the release of tenoxicam in a desirable economical biphasic pattern compared to other in situ formulations.

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Authors and Affiliations

  1. Department of Pharmaceutics and Pharmaceutical Technology, Faculty of Pharmaceutical Sciences and Pharmaceutical Industries, Future University in Egypt, Cairo, Egypt

    Hussein O. Ammar, Azza A. Mahmoud & Nada M. El Hoffy

  2. Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Cairo University, Cairo, Egypt

    Magdy Ibrahim & Rehab N. Shamma

Authors
  1. Hussein O. Ammar
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  2. Magdy Ibrahim
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  3. Azza A. Mahmoud
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  4. Rehab N. Shamma
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  5. Nada M. El Hoffy
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Correspondence to Rehab N. Shamma.

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Ammar, H.O., Ibrahim, M., Mahmoud, A.A. et al. Polymer-Free Injectable In Situ Forming Nanovesicles as a New Platform for Controlled Parenteral Drug Delivery Systems. J Pharm Innov 17, 391–398 (2022). https://doi.org/10.1007/s12247-020-09510-9

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