Optimization, In Vitro, and In Silico Characterization of Theophylline Inhalable Powder Using Raffinose-Amino Acid Combination as Fine Co-Spray-Dried Carriers
Petra Party,
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Lomass Soliman,
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Attila Nagy
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et al.
Pharmaceutics,
Journal Year:
2025,
Volume and Issue:
17(4), P. 466 - 466
Published: April 3, 2025
Background/Objectives:
Dry
powder
inhalation
is
an
attractive
research
area
for
development.
Therefore,
this
work
aimed
to
develop
inhalable
co-spray-dried
theophylline
(TN)
microparticles,
utilizing
raffinose-amino
acid
fine
carriers
intended
asthma
therapy.
The
study
addressed
enhancing
TN’s
physicochemical
and
aerodynamic
properties
ensure
efficient
lung
deposition.
Methods:
process
involves
spray-drying
each
formulation’s
solution
using
a
mini
spray
drier.
A
rigorous
assessment
was
conducted
on
particle
size
distribution,
structural
thermal
analysis,
morphology
study,
in
vitro
silico
investigation,
counter
addition
the
solubility,
dissolution,
diffusion
of
TN.
Results:
containing
leucine
glycine
revealed
superior
characteristics
(mass
median
diameter
(MMAD):
4.6–5
µm,
fraction
(FPF):
30.6–35.1%,
amorphous
spherical
structure)
as
candidates
further
development
TN-DPIs,
while
arginine
excluded
due
intensive
aggregation
hygroscopicity,
which
led
poor
performance.
TN
samples
demonstrated
micronized
particles
(D
[0.5]:
3.99–5.96
µm)
with
predominantly
structure
(crystallinity
index:
24.1–45.2%)
significant
solubility
enhancement
(~19-fold).
Formulations
leucine-glycine
highest
FPF
(45.7–47.8%)
deposition
(39.3–40.1%),
rapid
drug
release
(~100%
within
10
min),
improved
(2.29–2.43-fold),
respectively.
Moreover,
confirmed
microparticles
(mean
number
=
2.3–2.02
µm).
Conclusions:
This
innovative
formulation
possesses
enhanced
physicochemical,
morphological,
low-dose
local
treatment
could
be
applied
promising
carrier
dry
inhaler
Language: Английский
Comprehensive In Vitro and In Silico Aerodynamic Analysis of High-Dose Ibuprofen- and Mannitol-Containing Dry Powder Inhalers for the Treatment of Cystic Fibrosis
Petra Party,
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Zsófia Ilona Piszman,
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Árpád Farkas
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et al.
Pharmaceutics,
Journal Year:
2024,
Volume and Issue:
16(11), P. 1465 - 1465
Published: Nov. 17, 2024
Cystic
fibrosis
is
a
hereditary
disease,
which
causes
the
accumulation
of
dense
mucus
in
lungs
accompanied
by
frequent
local
inflammation.
The
non-steroidal
anti-inflammatory
drug
ibuprofen
(IBU)
and
mucolytic
mannitol
(MAN)
can
treat
these
symptoms.
Compared
to
per
os
administration,
lower
dose
drugs
sufficient
achieve
desired
effect
delivering
them
pulmonary
manner.
However,
it
still
challenge
administer
high
doses
lungs.
We
aim
develop
two
inhaled
powder
formulations,
single-drug
product
MAN
combined
formulation
containing
IBU
MAN.
Language: Английский
Particulate platform for pulmonary drug delivery: Recent advances of formulation and fabricating strategies
International Journal of Pharmaceutics,
Journal Year:
2025,
Volume and Issue:
unknown, P. 125601 - 125601
Published: April 1, 2025
Language: Английский
Enhanced pulmonary delivery of spray-dried theophylline: investigation of the trehalose and amino acid combinations as innovative fine carriers
Lomass Soliman,
No information about this author
Petra Party,
No information about this author
Attila Nagy
No information about this author
et al.
European Journal of Pharmaceutical Sciences,
Journal Year:
2025,
Volume and Issue:
unknown, P. 107109 - 107109
Published: April 1, 2025
Language: Английский
Development and Characterization of Spray-Dried Combined Levofloxacin–Ambroxol Dry Powder Inhaler Formulation
Ruwani K. Suraweera,
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Kirsten Spann,
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Emad L. Izake
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et al.
Pharmaceutics,
Journal Year:
2024,
Volume and Issue:
16(12), P. 1506 - 1506
Published: Nov. 22, 2024
Background:
This
study
explores
the
development
and
characterization
of
spray-dried
composite
microparticles
consisting
levofloxacin
(LVX,
a
broad-spectrum
antibiotic),
ambroxol
(AMB,
mucolytic
agent
that
has
antibacterial
antibiofilm
properties),
for
intended
application
drug
against
lower
respiratory
tract
infections
(LRTIs).
Methods:
A
range
LVX
to
AMB
mass
ratios
(1:1,
1:0.5,
1:0.25)
were
prepared,
with
without
use
dispersibility
enhancer
leucine
(LEU),
following
pre-optimized
parameters
achieve
required
particle
size
(1–5
µm)
flow
properties.
The
formulations
characterized
by
attenuated
total
reflection-Fourier
transform
infrared
(ATR-FTIR)
spectroscopy,
scanning
electron
microscopy
(SEM),
powder
X-ray
diffraction
(PXRD),
thermogravimetric
analysis
(TGA).
in
vitro
aerosolization
performance
new
formulation
was
evaluated
twin-stage
impinger
(TSI)
at
rate
60
±
5
L/min.
Using
validated
RP-HPLC
method,
quantitatively
determined.
Results:
combined
LVX,
AMB,
LEU
particles
spherically
shaped
sizes
ranging
from
1.9
2.9
µm,
thus
complying
requirements
effective
deep
lung
deposition.
produced
high
yield
enhanced
properties
characteristics
formulations.
showed
remarkable
impact
on
properties,
1:1
ratio
demonstrating
best
FPFs
both
drugs.
There
must
be
balanced
these
components
spray
drying
obtain
appropriate
property.
addition
5%
significantly
(p
<
0.005)
improved
FPF
all
formulations,
probably
enhancing
surface
hydrophobicity
particles.
Conclusions:
antibiotics
strong
potential
efficient
delivery
management
LRTIs.
Language: Английский