Drug development & registration,
Год журнала:
2023,
Номер
12(2), С. 135 - 145
Опубликована: Май 28, 2023
Introduction.
SARS-CoV-2
(severe
acute
respiratory
syndrome-related
coronavirus
2)
is
expected
to
remain
a
persistent
global
threat.
Therefore,
development
of
disease
2019
(COVID-19)
drugs
the
most
urgent
issue.
Nirmatrelvir
and
ritonavir
combination
an
oral
antiviral
drug
with
activity
against
SARS-CoV-2.
highly
efficacious
in
reducing
risk
COVID-19.
The
study
describes
validation
high-performance
liquid
chromatography
–
tandem
mass
spectrometry
(HPLC-MS/MS)
method
for
simultaneous
determination
nirmatrelvir
human
blood
plasma.
could
be
applied
pharmacokinetic
ritonavir.
Aim.
aim
this
develop
validate
HPLC-MS/MS
bioanalytical
Materials
methods.
plasma
by
HPLC-MS/MS.
samples
were
processed
acetonitrile
protein
precipitation.
Internal
standard:
promethazine.
Mobile
phase:
0.1%
formic
acid
solution
water
(Eluent
A),
B).
Column:
Phenomenex
Luna
C18
50
×
2.0
mm,
5
μm.
Analytical
range:
50.00–10000.00
ng/mL
nirmatrelvir,
5.00–1000.00
Ionization
source
ionization:
electrospray
ionization,
positive.
Detection
conditions:
499.90
→
110.10
m/z,
319.20
m/z
(nirmatrelvir),
720.90
426.00
296.20
268.10
197.10
139.90
(ritonavir),
285.15
198.05
(promethazine).
Results
discussion.
This
was
validated
selectivity,
matrix
effect,
calibration
curve,
accuracy,
precision,
spike
recovery,
lower
limit
quantification,
carry-over
effect
stability.
Conclusion.
quantitative
developed
validated.
analytical
range
investigate
pharmacokinetics
Carbohydrate Polymer Technologies and Applications,
Год журнала:
2024,
Номер
7, С. 100453 - 100453
Опубликована: Фев. 4, 2024
A
hybrid
of
microcrystalline
cellulose
(MCC)
with
metal
organic
frame
(MOF)
was
developed
as
an
efficient
adsorbent
for
dispersive
solid
phase
microextraction
(dSPME)
ritonavir
from
spiked
human
plasma.
The
sorbent
characterized
by
a
high-resolution
scanning
electron
microscope
(HR-SEM),
X-ray
diffraction
(XRD),
and
Fourier
transform
infrared
spectroscopy
(FTIR).
MCC
immersed
in
solution
CaCl2,
stirred
soda
water
1,3,5-benzenetricarboxylic
acid,
resulting
white
MCC/MOF
composites,
which
were
separated,
washed,
dried.
hybrids
examined
under
the
HR-SEM
showed
morphological
features
different
form
Ca-1,3,5-benzenetricarboxylic
acid
(Ca-BTC)
MOF.
patterns
Ca-BTC/MCC
composites
clearly
displayed
characteristic
Ca-BTC
MOF
bands,
indicating
that
successfully
incorporated
formation
crystalline
hybrids.
FTIR
spectra
exhibited
bands
MCC,
well
MOFs.
prepared
applied
dSPME
plasma,
before
determination
high
performance
liquid
chromatography
UV
detection.
After
method
optimization,
best
extraction
efficiency
achieved
using
12.50
mg
250
µL
acetonitrile
eluent.
This
novel
(Ca-BTC/MCC)
merges
advantages
surface
areas
MOFs
820
m2
g−1
biodegradability
sustainability
MCC.
Besides,
higher
compared
unmodified
To
our
knowledge,
this
work
applies
sorbents
first
time.
These
results
open
door
to
more
applications
these
sample
preparation
biomedical
analysis.
Heliyon,
Год журнала:
2025,
Номер
11(2), С. e41737 - e41737
Опубликована: Янв. 1, 2025
Currently,
the
trials
found
that
clinical
efficacy
of
molnupiravir
is
lower
than
ritonavir-boosted
nirmatrelvir.
An
explanation
for
these
different
efficacies
in
treatments
still
limited.
The
analysis
method
was
developed
and
validated
to
simultaneously
quantify
nirmatrelvir,
ritonavir,
beta-D-N4-hydroxycytidine
(NHC)
human
plasma
bronchoalveolar
lavage
fluid
(BALF)
by
electrospray
ionization
mass
spectrometry.
Our
over
a
linear
range
30-10000
ng/mL
both
matrices,
with
precision
accuracy
within
15
%
across
four
concentrations.
Recovery
rates
analytes
from
BALF
were
between
90.7-102.2
90.5-107.7
%,
respectively.
analytical
then
applied
monitor
therapeutic
drug
concentrations
59
samples
23
patients
receiving
nirmatrelvir
or
molnupiravir.
By
setting
target
292
1205
NHC,
based
on
vitro
antiviral
90
virus
inhibitory
(EC90),
drug's
molecular
weight
its
binding
proteins,
we
observed
had
substantially
greater
achieving
Additionally,
monitored
epithelial
lining
4
NHC
exhibited
higher
permeability
lung
tissue
(approximately
20
nirmatrelvir).
However,
subtherapeutic
also
present
fluid.
These
findings
highlight
importance
considering
factors
determining
drugs
treating
coronavirus
disease
2019
(COVID-19).
The
SARS-CoV-2
virus
sets
up
a
global
catastrophe,
and
countries
all
around
the
world
made
significant
efforts
to
halt
spread.
Nirmatrelvir
(NMV)
was
lately
approved
by
FDA
as
safe
well-tolerated
oral
direct-acting
antiviral
medication
for
infection.
Therefore,
fast
completely
validated
stability
indicating
method
established-for
first
time-
NMV
determination.
study
used
NaOH,
HCl,
neutral,
H2O2,
sunlight
test
under
various
stress
conditions
followed
kinetics
degradation
investigation
derivation
of
Arrhenius
plot.
analysis
performed
using
Agilent
Zorbax
Eclipse-C18
column
(5
µm,
4.6
×
250
mm)
with
mobile
phase
consisting
acetonitrile:
50
mM
ammonium
acetate,
pH
=
5
(50:50,
v/v,
respectively)
at
flow
rate
1.0
mL/min
min
run
time.
Diode
array
detector
(DAD)
set
225
nm
quantify
concentration
range
5-500
µg/mL
LOD
LOQ
0.6
2
µg/mL,
respectively.
Method's
greenness
assessed
different
metrics
including
Analytical
Eco-Scale,
Greenness
Assessment
Procedure
Index,
GAPI,
Greenness,
AGREE.
A
thorough
revealed
that
more
susceptible
alkaline
hydrolysis
compared
acid
hydrolysis.
In
contrast,
it
found
remained
stable
when
subjected
oxidative,
sun-induced
conditions.
Moreover,
alkali-induced
were
follow
pseudo
order
kinetics.
Consequently,
half
lifetime
studied
room
temperature
calculated
mechanism
pathways
circumstances
proposed
LC-MS-UV.
Toxicities
products
ProTox-II,
along
parent
NMV,
shown
be
hardly
hazardous.
RSC Advances,
Год журнала:
2023,
Номер
13(38), С. 26719 - 26731
Опубликована: Янв. 1, 2023
As
the
COVID-19
pandemic
is
not
yet
over,
Pfizer
has
launched
novel
pill
Paxlovid®
(Nirmatrelvir
(NMV)
co-packaged
with
ritonavir
(RIT))
as
an
effective
medication
for
hospitalized
and
non-hospitalized
patients.
Making
pharmaceutical
analysis
greener
more
sustainable
lately
become
main
direction
of
research
community.
In
this
context,
two
fast,
green,
stability-indicating
chromatographic
methods
were
designed
neat
quantitative
determination
NMV
RIT
in
their
bulk
dosage
forms.
Method
I
deemed
first
electro-driven
attempt
assay
Paxlovid®.
Herein,
optimized
conditions
Micellar
Electrokinetic
Chromatographic
(MEKC)
method
50
mM
borate
buffer
at
pH
9.2
25
sodium
lauryl
sulfate
(SDS)
being
used
background
electrolyte
(BGE)
on
a
deactivated
fused
silica
capillary
(50
cm
length
×
μm
id).
II
was
isocratic
reversed-phase
HPLC
separation
using
Zorbax-Eclipse
C18
(4.6
250
mm,
5
particle
size)
column
ammonium
acetate
acetonitrile
mobile
phase
constituents
flow
rate
1
mL
min-1.
For
sake
simplicity
increasing
sensitivity,
single
wavelength
210
nm
to
both
drugs.
Linear
correlations
between
peak
areas
concentration
observed
ranges
10-200
μg
mL-1
5-100
methods.
The
impact
versatile
stress
such
hydrolysis,
oxidation,
photolysis
stability
studied.
Fortunately,
methodologies
able
separate
drugs
from
degradants.
Thus,
indicating
power
proved.
derived
statistically
validated
agreement
ICH
guidelines.
Furthermore,
environmental
friendliness
sustainability
these
investigated
compared
cited
holistic
multicriteria
evaluation
tools
namely
Hexagon,
AGREE,
RGB12
metrics.
Conclusively,
proposed
offered
reliable,
feasible,
economic,
white,
alternatives
Biomedical Chromatography,
Год журнала:
2024,
Номер
38(3)
Опубликована: Янв. 16, 2024
Abstract
A
systematic
and
novel
quality
by
design–enabled,
rapid,
simple,
economic
stability–indicating
HPLC
method
for
quantifying
nirmatrelvir
(NMT)
was
successfully
developed
validated.
An
analytical
target
profile
(ATP)
established,
critical
attributes
(CAAs)
were
allocated
to
meet
the
ATP
requirements.
The
used
chromatographic
separation
using
a
Purosphere
column
with
4.6
mm
inner
diameter
×
250
(2.5
μm).
analysis
occurred
at
50°C
flow
rate
of
1.2
mL/min
detection
220
nm.
10
μL
sample
injected,
mobile
phase
consisted
two
components:
A,
containing
0.1%
formic
acid
in
water
(20%),
B,
acetonitrile
(80%).
diluent
prepared
mixing
90:10
v/v
ratio.
retention
time
analyte
determined
be
2.78
min.
Accuracy
exceeded
99%,
correlation
coefficient
greater
than
0.999.
validated
characterized
as
precise,
accurate,
robust.
Significantly,
NMT
found
susceptible
alkaline,
acidic,
peroxide
conditions
during
forced
degradation
testing.
stability‐indicating
effectively
separated
products
formed
stress
testing,
underlining
its
effectiveness
stability
testing
offering
accuracy,
reliability,
sensitivity
determining
NMT.
European Journal of Pharmaceutical Sciences,
Год журнала:
2023,
Номер
189, С. 106535 - 106535
Опубликована: Июль 23, 2023
Nirmatrelvir
is
an
effective
component
of
Paxlovid,
the
first
oral
antiviral
drug
granted
emergency
use
authorization
by
FDA.
prescribed
extensively
in
older
adult
patients
to
treat
coronavirus
disease
2019
(COVID-19)
infection.
In
this
study,
population
pharmacokinetic
modeling
with
clinical
study
data
was
employed
explore
profile
nirmatrelvir
Chinese
COVID-19
The
result
suggests
that
can
be
described
a
one-compartment
model
first-order
absorption
and
elimination
population.
calculated
apparent
clearance
(CL/F),
volumes
distribution
(V/F),
rate
constant
(ka)
for
typical
patient
were
4.16
L/h,
39.1
L,
0.776,
respectively.
area
under
curve
(AUC)
approximately
three-fold
higher
than
AUCs
Western
young
volunteers.
At
same
doses,
simulated
increased
26%,
43%,
72%,
135%
virtual
populations
creatinine
clearances
60,
45,
30,
15
mL/min,
Our
research
provides
instructive
reference
dose
selection
adults.
International Journal of Analytical Chemistry,
Год журнала:
2024,
Номер
2024, С. 1 - 9
Опубликована: Март 6, 2024
The
combined
prescriptions
of
nirmatrelvir/ritonavir
and
other
drugs
are
limited
due
to
potential
drug-drug
interactions,
so
therapeutic
drug
monitoring
(TDM)
becomes
particularly
important.
In
this
study,
a
liquid
chromatography-tandem
mass
spectrometry
(LC-MS/MS)
method
was
established
for
determination
the
in
plasma
patients
with
COVID-19,
providing
technical
theoretical
support
TDM.
Plasma
samples
were
processed
by
protein
precipitation
using
acetonitrile,
analytes
separated
on
an
Agilent
Poroshell
120
SB-C18
(2.1
×
75
mm,
2.7
μm)
column
at
35°C.
Acetonitrile
0.1%
formic
acid
water
(52
:
48)
utilized
as
mobile
phases
flow
rate
0.3
mL/min.
multiple
reaction
(MRM)
mode,
nirmatrelvir
ritonavir
monitored
precursor/product
ions:
m/z
500.2/110.1
721.3/296.1,
respectively,
selinexor
internal
standard.
linear
range
both
2.0
ng/mL
5000
good
inter-
intraday
precision
accuracy,
recovery
92.0%-107%
85.7%-106%
ritonavir.
Finally,
successfully
applied
monitor
exposure
levels
from
hemodialysis
patients.