The pharmaceutical quality of freeze-dried tablets containing therapeutic bacteriophages against Pseudomonas aeruginosa and Staphylococcus aureus

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26620%2F26%3A0197503" target="_blank" >RIV/00216305:26620/26:0197503 - isvavai.cz</a>

Alternative codes found

RIV/00216224:14310/25:00140505 RIV/00216208:11310/25:10515578

Result on the web

<a href="https://www.sciencedirect.com/science/article/pii/S0378517325000353" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0378517325000353</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.ijpharm.2025.125199" target="_blank" >10.1016/j.ijpharm.2025.125199</a>

Result language

angličtina

Original language name

The pharmaceutical quality of freeze-dried tablets containing therapeutic bacteriophages against Pseudomonas aeruginosa and Staphylococcus aureus

Original language description

The preparation of a solid dosage form containing bacteriophages, which meets pharmaceutical requirements and ensures long-term stability of the phage effect, is significant for implementing phage therapy in practice. A commonly used method for processing phages into a solid form is freeze-drying into a so-called freeze-dried cake; however, to date there have been no studies examining the pharmacopeial parameters of freeze-dried tablets with bacteriophages. In this study, we describe the preparation and properties of freeze-dried tablets containing a cocktail of purified pseudomonal bacteriophage DSM 33593 from the genus Pbunavirus and staphylococcal bacteriophage DSM 33473 from the genus Kayvirus (108 PFU/tablet) as the active ingredient. Maltodextrin was used as a tablet filler, and D-mannitol was used as a cryoprotectant. The tablet preparation process resulted in a decrease in phage titer by no more than 1 log PFU/mL. For Pbunavirus, the titer values in tablet and liquid form were comparable. Kayvirus was more stable in tablet form than in liquid form after six months of storage at 25 degrees C (a decrease of 1.9 +/- 0.8 log PFU/mL and 3.8 +/- 0.7 log PFU/mL, respectively). The uniformity of mass of singledose preparations, uniformity of content of single-dose preparations, and their disintegration complied with pharmacopeial requirements. The uniformity of dosage units of the tablets was maintained over three months. A microscopic examination of the internal part of the tablet revealed a heterogeneous structure, which does not affect the required pharmacopeial properties of the tablets. This study highlights the potential of freeze-dried tablets for long-term preservation of the phage effect at room temperature.

Czech name

—

Czech description

—

Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

30104 - Pharmacology and pharmacy

Project

<a href="/en/project/LX22NPO5103" target="_blank" >LX22NPO5103: National Institute of Virology and Bacteriology</a><br>

Continuities

O - Projekt operacniho programu

Publication year

2025

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

International Journal of Pharmaceutics

ISSN

0378-5173

e-ISSN

1873-3476

Volume of the periodical

671

Issue of the periodical within the volume

2

Country of publishing house

NL - THE KINGDOM OF THE NETHERLANDS

Number of pages

9

Pages from-to

1-9

UT code for WoS article

001402924700001

EID of the result in the Scopus database

2-s2.0-85215364719