Breast Cancer Targets and Therapy,
Journal Year:
2022,
Volume and Issue:
Volume 14, P. 113 - 123
Published: April 1, 2022
Triple-negative
breast
cancer
(TNBC)
is
a
biologically
aggressive
yet
heterogeneous
disease
that
disproportionately
affects
younger
women
and
of
color
compared
to
other
subtypes.
The
paucity
effective
targeted
therapies
the
prevalence
chemotherapeutic
resistance
in
high-risk,
early-stage
TNBC
pose
significant
clinical
challenges.
Deeper
insights
into
genomic
immune
landscape
have
revealed
key
features
TNBC,
including
intrinsic
instability,
DNA
repair
deficiency,
potentially
an
immunogenic
tumor
microenvironment.
These
advances
led
landmark
trials
with
checkpoint
inhibitors
advanced-stage
setting,
which
subsequently
translated
immunotherapy-based
setting
recent
promising
results.
Pembrolizumab,
anti-programmed
death
1
(PD-1)
monoclonal
antibody,
was
investigated
combination
platinum-,
taxane-
anthracycline-based
neoadjuvant
chemotherapy
followed
by
adjuvant
pembrolizumab
monotherapy
for
patients
randomized,
double-blind,
placebo-controlled
phase
3
KEYNOTE-522
trial.
In
July
2021,
US
Food
Drug
Administration
(FDA)
granted
approval
based
on
marked
improvement
pathologic
complete
response
rate
3-year
event-free
survival
alone.
This
advance
immediately
altered
longstanding
treatment
paradigm.
Here,
we
review
impact
plus
discuss
immunotherapy-related
toxicity
considerations,
immunomodulatory
biomarkers
under
active
investigation,
remaining
questions
future
research
directions.
Cancers,
Journal Year:
2025,
Volume and Issue:
17(6), P. 1032 - 1032
Published: March 20, 2025
Camptothecin
and
its
derivatives
(CPTs)
are
potent
antineoplastic
agents
that
exert
their
effects
by
inhibiting
DNA
topoisomerase
I,
leading
to
apoptosis
during
cell
proliferation.
Since
discovery
in
the
1960s,
CPTs
have
faced
challenges
such
as
low
water
solubility,
pH-dependent
lactone
ring
instability,
severe
off-target
toxicities.
Despite
extensive
research,
only
two
CPTs,
irinotecan
topotecan,
received
health
authority
approval.
Ongoing
clinical
trials
continue
explore
use
of
combination
with
targeted
therapies
immunotherapies
expand
use.
Drug
delivery
systems,
including
liposomes
antibody–drug
conjugates
(ADCs),
significantly
enhanced
therapeutic
index
CPTs.
Liposomal
(Onivyde®,
Ipsen,
Paris,
France)
ADCs
delivering
CPT
payloads,
trastuzumab
deruxtecan
(Enhertu®,
Daiichi
Sankyo,
Tokyo,
Japan)
sacituzumab
govitecan
(Trodelvy®,
Gilead
Sciences,
Inc.,
Foster
City,
CA,
USA),
demonstrated
substantial
efficacy
safety.
There
is
promise
novel
strategies
inverse
targeting
co-dosing
anti-idiotypic
distribution
enhancers
may
utility
ADCs.
This
review
highlights
discusses
approaches
further
enhance
selectivity.
Therapeutic Advances in Medical Oncology,
Journal Year:
2025,
Volume and Issue:
17
Published: Jan. 1, 2025
Antibody–drug
conjugates
(ADCs)
offer
a
promising
therapeutic
approach
for
various
cancers,
enhancing
the
window
while
mitigating
systemic
adverse
effects
on
healthy
tissues.
ADCs
have
achieved
remarkable
clinical
success,
particularly
in
treating
breast
cancer,
becoming
standard
therapy
across
all
subtypes,
including
hormone
receptor-positive,
human
epidermal
growth
factor
receptor
2-positive,
and
triple-negative
cancer.
Although
designed
to
selectively
target
antigens
via
monoclonal
antibodies,
can
exhibit
toxicity
normal
tissues,
often
due
off-target
of
their
cytotoxic
payloads.
Understanding
managing
these
toxicities
according
established
guidelines
are
crucial
ADC
efficacy,
minimizing
events,
ultimately
improving
patient
outcomes.
This
review
comprehensively
examines
employed
cancer
treatment
explores
management
strategies.
Furthermore,
we
investigate
novel
beyond
trastuzumab
deruxtecan
sacituzumab
govitecan,
evaluating
potential
efficacy
corresponding
safety
profiles.
Therapeutic Advances in Medical Oncology,
Journal Year:
2025,
Volume and Issue:
17
Published: April 1, 2025
Background:
Standard
of
care
(SoC)
for
patients
with
advanced
triple-negative
breast
cancer
(TNBC)
whose
tumors
express
PD-L1
(combined
positive
score
⩾
10)
is
chemotherapy
plus
anti-PD-(L)1
inhibitors;
however,
prognosis
and
survival
most
poor.
Datopotamab
deruxtecan
(Dato-DXd),
a
novel
antibody-drug
conjugate
comprising
humanized
anti-TROP2
IgG1
monoclonal
antibody
conjugated
to
potent
topoisomerase
I
inhibitor
payload
via
plasma-stable,
cleavable,
tetrapeptide-based
linker,
has
shown
preliminary
activity
as
mono
or
combination
therapy
in
advanced/metastatic
TNBC.
Objectives:
TROPION-Breast05
an
ongoing
randomized,
open-label,
multicenter
phase
III
study.
The
primary
objective
demonstrate
the
superiority
Dato-DXd
durvalumab
(an
anti-PD-L1
antibody)
versus
SoC
treatment
PD-L1-high
locally
recurrent
inoperable
metastatic
Methods
design:
Patients
(⩾18
years)
will
be
randomized
1:1
receive
(6
mg/kg
intravenously
(IV)
every
3
weeks
(Q3W))
(1120
mg
IV
Q3W)
investigator’s
choice
(ICC;
paclitaxel,
nab-paclitaxel,
gemcitabine
carboplatin)
pembrolizumab
(200
Q3W).
In
selected
countries,
also
(1:1:1)
third
arm
monotherapy.
study
endpoint
progression-free
(PFS)
per
blinded
independent
central
review
(Dato-DXd
vs
ICC
arm).
Overall
key
secondary
endpoint;
other
endpoints
include
PFS
(investigator-assessed),
response
rate,
duration
response,
clinical
benefit
rate
at
Week
24
(all
assessed
arm),
patient-reported
outcomes,
safety.
Ethics:
approved
by
ethics
committees
institutional
boards
each
site.
All
provide
written
informed
consent.
Discussion:
assess
potential
role
without
findings
this
trial
could
lead
new
option
these
patients.
Trial
registration:
ClinicalTrials.gov
identifier:
NCT06103864
(Date
27
October
2023).
Breast Cancer Targets and Therapy,
Journal Year:
2022,
Volume and Issue:
Volume 14, P. 113 - 123
Published: April 1, 2022
Triple-negative
breast
cancer
(TNBC)
is
a
biologically
aggressive
yet
heterogeneous
disease
that
disproportionately
affects
younger
women
and
of
color
compared
to
other
subtypes.
The
paucity
effective
targeted
therapies
the
prevalence
chemotherapeutic
resistance
in
high-risk,
early-stage
TNBC
pose
significant
clinical
challenges.
Deeper
insights
into
genomic
immune
landscape
have
revealed
key
features
TNBC,
including
intrinsic
instability,
DNA
repair
deficiency,
potentially
an
immunogenic
tumor
microenvironment.
These
advances
led
landmark
trials
with
checkpoint
inhibitors
advanced-stage
setting,
which
subsequently
translated
immunotherapy-based
setting
recent
promising
results.
Pembrolizumab,
anti-programmed
death
1
(PD-1)
monoclonal
antibody,
was
investigated
combination
platinum-,
taxane-
anthracycline-based
neoadjuvant
chemotherapy
followed
by
adjuvant
pembrolizumab
monotherapy
for
patients
randomized,
double-blind,
placebo-controlled
phase
3
KEYNOTE-522
trial.
In
July
2021,
US
Food
Drug
Administration
(FDA)
granted
approval
based
on
marked
improvement
pathologic
complete
response
rate
3-year
event-free
survival
alone.
This
advance
immediately
altered
longstanding
treatment
paradigm.
Here,
we
review
impact
plus
discuss
immunotherapy-related
toxicity
considerations,
immunomodulatory
biomarkers
under
active
investigation,
remaining
questions
future
research
directions.