JNCI Cancer Spectrum,
Journal Year:
2023,
Volume and Issue:
8(1)
Published: Dec. 19, 2023
Abstract
In
previously
reported
retrospective
studies,
high
tumor
RNA
disruption
during
neoadjuvant
chemotherapy
predicted
for
post-treatment
pathologic
complete
response
(pCR)
and
improved
disease-free
survival
at
definitive
surgery
primary
early
breast
cancer.
The
BREVITY
(Breast
Cancer
Response
Evaluation
Individualized
Therapy)
prospective
clinical
trial
(NCT03524430)
seeks
to
validate
these
prior
findings.
Here
we
report
training
set
(Phase
I)
findings,
including
determination
of
index
(RDI)
cut
points
outcome
prediction
in
the
subsequent
validation
II;
454
patients).
80
patients
set,
maximum
RDI
values
biopsies
obtained
were
significantly
higher
pCR
responders
than
without
(P
=
.008).
Moreover,
≤3.7
treatment
a
lack
(negative
predictive
value
93.3%).
These
findings
support
prospect
that
on-treatment
assessments
may
effectively
predict
post-surgery
outcome,
possibly
permitting
optimization.
Breast Cancer Research and Treatment,
Journal Year:
2024,
Volume and Issue:
209(3), P. 493 - 502
Published: Oct. 18, 2024
Detection
of
molecular
residual
disease
(MRD)
allows
for
the
identification
breast
cancer
patients
at
high-risk
recurrence,
with
potential
that
early
initiation
treatment
stages
relapse
could
improve
patient
outcomes.
The
Invitae
Personalized
Cancer
Monitoring™
assay
(PCM)
is
a
newly
developed
next-generation
sequencing
approach
utilizes
up
to
50
patient-specific,
tumor-informed
DNA
variants,
detect
circulating
tumor
(ctDNA).
ability
PCM
MRD
before
clinical
was
evaluated.
cohort
included
61
female
who
underwent
neoadjuvant
chemotherapy.
Plasma
samples
were
collected
and
during
therapy,
after
surgery
monitoring.
used
ctDNA
each
time
point.
sensitivity
in
plasma
from
relapsed
monitoring
phase
76.9%
(10/13).
Specificity
positive
predictive
values
both
100%
all
(10/61,
16%)
had
detected
subsequently
relapsing.
associated
future
(HR
37.2,
95%
CI
10.5-131.9,
p
<
0.0001),
median
lead-time
detection
11.7
months.
long
over
relapse,
shows
strong
association
relapse-free
survival
may
be
identify
allowing
earlier
intervention.
Frontiers in Genetics,
Journal Year:
2023,
Volume and Issue:
14
Published: Dec. 5, 2023
Introduction:
To
date,
tissue
biopsy
represents
the
gold
standard
for
characterizing
non-small-cell
lung
cancer
(NSCLC),
however,
complex
architecture
of
disease
has
introduced
need
new
investigative
approaches,
such
as
liquid
biopsy.
Indeed,
DNA
analyzed
in
is
much
more
representative
tumour
heterogeneity.
Materials
and
methods:
We
performed
a
meta-analysis
17
selected
papers,
to
attest
diagnostic
performance
identifying
EGFR
mutations
NSCLC.
Results:
In
overall
studies,
we
found
sensitivity
0.59,
specificity
0.96
odds
ratio
24,69.
Since
noticed
high
heterogeneity
among
different
also
separate
subsets
divided
by
1)
stage
disease,
2)
experimental
design
3)
method
mutation
detection.
Liquid
highest
sensitivity/specificity
high-stage
tumours,
prospective
studies
are
reliable
than
retrospective
ones
terms
specificity,
both
NGS
PCR-based
techniques
can
be
used
detect
Discussion:
Overall,
potential
help
management
NSCLC,
but
at
present
non-homogeneous
literature
data,
lack
optimal
detection
methods,
together
with
relatively
costs
make
its
applicability
routine
diagnostics
still
challenging.
Discover Oncology,
Journal Year:
2025,
Volume and Issue:
16(1)
Published: March 6, 2025
Breast
cancer
management
has
traditionally
relied
on
tissue
biopsies
and
imaging,
which
offer
limited
insights
into
the
disease.
However,
discovery
of
circulating
tumor
DNA
(ctDNA)
minimal
residual
disease
(MRD)
detection
revolutionized
our
approach
to
breast
cancer.
ctDNA,
is
fragmented
found
in
bloodstream,
provides
a
minimally
invasive
way
understand
tumor's
genomic
landscape,
revealing
heterogeneity
critical
mutations
that
may
miss.
MRD,
indicates
cells
remain
after
treatment,
can
now
be
detected
using
ctDNA
other
advanced
methods,
improving
ability
predict
recurrence.
This
allows
for
personalized
adjuvant
therapies
based
individual
MRD
levels,
avoiding
unnecessary
treatments
patients
with
low
MRD.
review
discusses
how
represent
paradigm
shift
towards
personalized,
genomically
guided
care,
potential
significantly
improve
patient
outcomes
Journal of Personalized Medicine,
Journal Year:
2024,
Volume and Issue:
14(7), P. 719 - 719
Published: July 3, 2024
Breast
cancer
is
the
most
common
among
women
in
world
as
well
United
States.
Molecular
and
histological
differentiation
have
helped
clinicians
optimize
treatments
with
various
therapeutics,
including
hormonal
therapy,
chemotherapy,
immunotherapy,
radiation
therapy.
Recently,
immunotherapy
has
become
standard
of
care
locally
advanced
triple-negative
breast
an
option
across
molecular
subtypes
for
tumors
a
high
tumor
mutation
burden.
Despite
advancements
personalized
medicine
directing
management
localized
cancers,
emergence
resistance
to
these
therapies
leading
cause
death
patients.
Therefore,
there
critical
need
identify
validate
predictive
biomarkers
direct
treatment
selection,
potential
responders,
detect
emerging
therapies.
Areas
active
scientific
clinical
research
include
novel
incorporating
microenvironment,
immune
profiling,
characterization,
histopathological
predict
response
resistance.
Molecular Oncology,
Journal Year:
2024,
Volume and Issue:
unknown
Published: June 12, 2024
The
advancements
in
the
detection
and
characterization
of
circulating
tumor
DNA
(ctDNA)
have
revolutionized
precision
medicine
are
likely
to
transform
standard
clinical
practice.
non‐invasive
nature
this
approach
allows
for
molecular
profiling
entire
entity,
while
also
enabling
real‐time
monitoring
effectiveness
cancer
therapies
as
well
identification
resistance
mechanisms
guide
targeted
therapy.
Although
field
ctDNA
studies
offers
a
wide
range
applications,
including
early
disease,
review
we
mainly
focus
on
role
dynamic
unresectable
locally
advanced
metastatic
BC
(mBC).
Here,
provide
practice
guidance
rapidly
evolving
mBC,
outlining
current
landscape
liquid
biopsy
applications
how
choose
right
assay.
Additionally,
underline
importance
exploring
relevance
novel
alterations
that
potentially
represent
therapeutic
targets
along
with
mutations
where
therapy
is
already
approved.
Finally,
present
potential
roadmap
integrating
analysis
into
Oncology Letters,
Journal Year:
2024,
Volume and Issue:
27(6)
Published: April 25, 2024
The
detection
of
circulating
tumor
DNA
(ctDNA)
in
the
plasma
cancer
patients
is
emerging
as
a
very
sensitive
and
specific
prognostic
biomarker.
Previous
studies
with
ctDNA
have
focused
on
ability
to
predict
micrometastatic
eventual
clinical
metastatic
relapse.
There
are
few
data
role
monitoring
response
local
therapy.
present
study
reports
case
patient
early‑stage
lobular
breast
cancer,
detectable
test
which
resolved
radiotherapy
breast.
This
suggests
that
enough
detect
minimal
residual
disease,
localized
breast,
radiation
therapy,
thus
may
assist
providing
indications
for
treatment.