Development with greenness evaluation and validation of stability indicating ion-pair reverse phase HPLC method for determination of related substances and assay of Nirmatrelvir drug substance
Sonali Mehendale-Munj,
No information about this author
Manoj A. Mangukiya,
No information about this author
Aman A. Desai
No information about this author
et al.
Analytical Chemistry Letters,
Journal Year:
2025,
Volume and Issue:
15(1), P. 65 - 82
Published: Jan. 2, 2025
Language: Английский
First analytical confirmation of drug-induced crystal nephropathy in felines caused by GS-441524, the active metabolite of Remdesivir
Journal of Pharmaceutical and Biomedical Analysis,
Journal Year:
2024,
Volume and Issue:
247, P. 116248 - 116248
Published: May 22, 2024
GS-441524
is
an
adenosine
nucleoside
antiviral
demonstrating
significant
efficacy
in
the
treatment
of
feline
infectious
peritonitis
(FIP),
otherwise
fatal
illness,
resulting
from
infection
with
coronavirus.
However,
following
emergence
COVID-19,
veterinary
development
was
halted,
and
Gilead
pursued
clinical
a
pro-drug,
approval
Remdesivir
under
FDA
emergency
use
authorization.
Despite
lack
regulatory
approval,
available
without
prescription
through
various
unlicensed
online
distributors
commonly
purchased
by
pet
owners
for
FIP.
Herein,
we
report
data
obtained
analytical
characterization
two
renal
calculi,
propensity
to
cause
toxicity
drug-induced
crystal
nephropathy
vivo.
As
definitive
diagnosis
requires
confirmation
lithogenic
material
accurately
attribute
mechanism
toxicity,
stone
composition
crystalline
matrix
were
characterized
using
ultra-performance
liquid
chromatography
photodiode
array
detection
(UPLC-PDA),
mass
spectrometry
(LCMS),
nuclear
magnetic
resonance
(NMR)
spectroscopy,
X-ray
powder
diffraction
(XRD),
Fourier-transform
infrared
spectroscopy
(FTIR).
This
work
serves
provide
first
GS-441524-induced
effort
support
toxicologic
identification
adverse
effects
caused
administration
or
any
pro-drug
thereof.
Language: Английский
Favipiravir, remdesivir, and lopinavir: metabolites, degradation products and their analytical methods
Drug Metabolism Reviews,
Journal Year:
2024,
Volume and Issue:
56(2), P. 127 - 144
Published: March 6, 2024
Severe
acute
respiratory
syndrome
2
(SARS-CoV-2)
caused
the
emergence
of
COVID-19
pandemic
all
over
world.
Several
studies
have
suggested
that
antiviral
drugs
such
as
favipiravir
(FAV),
remdesivir
(RDV),
and
lopinavir
(LPV)
may
potentially
prevent
spread
virus
in
host
cells
person-to-person
transmission.
Simultaneously
with
widespread
use
these
drugs,
their
stability
action
mechanism
also
attracted
attention
many
researchers.
This
review
focuses
on
mechanism,
metabolites
degradation
products
(FAV,
RDV
LPV)
demonstrates
various
methods
for
quantification
discrimination
different
biological
samples.
Herein,
instrumental
analysis
main
form
or
metabolite
are
classified
into
two
types:
optical
chromatography
which
last
one
combination
detectors
provides
a
powerful
method
routine
analyses.
Some
representative
reported
this
details
them
carefully
explained.
It
is
hoped
will
be
good
guideline
study
provide
better
understanding
from
aspects
investigated
study.
Language: Английский
Rapid and ecofriendly ultra performance liquid chromatographic analytical methodology for the simultaneous determination of four drugs included in COVID-19 treatment protocol
Ekram A. Ghozzy,
No information about this author
Nahed El‐Enany,
No information about this author
Manar M. Tolba
No information about this author
et al.
Microchemical Journal,
Journal Year:
2024,
Volume and Issue:
205, P. 111178 - 111178
Published: July 11, 2024
Language: Английский
Assessment of Analytical Techniques for Precise Quantification of Four Antiviral Drugs in Pharmaceutical Research and Development: A Comprehensive Review
Current Pharmaceutical Analysis,
Journal Year:
2024,
Volume and Issue:
20(6), P. 409 - 424
Published: July 1, 2024
:
Precise
measurement
of
drug
concentration
in
pharmaceutical
research
is
critical,
especially
for
anti-viral
drugs
like
boceprevir,
elvitegravir,
indinavir,
and
saquinavir
that
combat
viral
infections.
It
well-known
analytical
techniques
play
an
imperative
role
identifying
characterizing
active
ingredients
biological
samples
formulations.
Moreover,
precise
assessment
directly
influences
safety,
stability,
efficacy
while
providing
in-depth
insight
into
pharmacokinetics.
Other
than
this,
also
aid
impurities,
deteriorated
products,
potential
pollutants.
Thus,
reliable
methods
have
become
crucial
addressing
challenges
imposed
by
complex
The
most
commonly
used
technique
UV
spectrophotometry,
which
does
not
the
high
sensitivity
to
detect
In
contrast,
Liquid
Chromatography-Mass
Spectrometry/Mass
Spectrometry
(LC-MS/MS)
merges
two
techniques,
chromatography
mass
spectrometry,
accurately
quantify
samples.
Furthermore,
Ultra-Performance
Chromatography
(UPLC)
provides
enhanced
resolution,
faster
analysis
short
duration,
low
solvent
consumption
contrast
HPLC.
This
comprehensive
review
aims
critically
assess
each
approach's
accuracy,
applicability,
selectivity,
limitation
provide
valuable
insights
researchers
analysts.
Understanding
weaknesses
strengths
these
will
enable
select
suitable
method
based
on
their
needs
requirements
quality
assessment,
quantification,
optimal
therapeutic
efficiency.
Eventually,
this
intends
advance
development,
specifically
drugs,
ensuring
effective
secure
administration
therapies.
Language: Английский
Optimization of LC-MS/MS Analytical Method for Trace Level Quantification of Potential Genotoxic Impurities in Siponimod Pure Drug and Formulations
International Journal of Advancement in Life Sciences Research,
Journal Year:
2024,
Volume and Issue:
07(02), P. 81 - 91
Published: Jan. 1, 2024
The
generation
of
single
or
multiple
genotoxic
impurities
during
synthesis
siponimod
should
be
avoided
for
production
safe
formulation.
Technically,
complete
elimination
was
not
possible
and
hence
there
is
a
need
to
propose
an
accurate
method
trace
level
detection
impurities.Method
optimization
studies
were
conducted
by
analysis
standard
solution
in
various
parameters.
results
noticed
every
varied
condition
tabulated
finalizing
the
appropriate
conditions
analyzing
siponimod.
optimized
consists
waters
C18
(150
×
4.6
mm;
5
μm)
column,
ammonium
acetate
(0.02M)
at
pH
4.2
(fixed
with
1
%
formic
acid)
methanol
45:55
(v/v)
0.5
mL/min
flow
rate.
mass
analyser
operated
reaction
positive
ion
mode
characteristic
transition
m/z
517
(parent
ion)and
213
(product
ion)
siponimod,
434(parent
173
ion)for
alcohol
432(parent
and172
aldehyde
impurity.
No
impurity
unwanted
compounds
detected
both
LC
chromatograms
spectra,
confirming
specificity.Validation
parameters
including
linearity,
precision,
recovery,
ruggedness,
robustness
yielded
acceptable
results.
suitable
assessing
potential
manufacturing
pharmaceutical
products.
Language: Английский