KEYTRUDA Also Approved for Second-Line
Treatment of Patients with Advanced NSCLC Whose Tumors Express
PD-L1
Merck (NYSE:MRK), known as MSD outside the United States and
Canada, today announced that KEYTRUDA® (pembrolizumab), the
company’s anti-PD-1 therapy, has been approved in Japan for the
treatment of certain patients with PD-L1-positive unresectable
advanced/recurrent non-small cell lung cancer (NSCLC) in the first-
and second-line treatment settings at a fixed dose of 200 mg every
three weeks. MSD will manufacture and market KEYTRUDA in Japan and
will promote it with Taiho Pharmaceutical Co., Ltd.
“This approval in both the first- and second-line settings for
advanced non-small cell lung cancer in patients whose tumors
express PD-L1 marks an important milestone in Japan,” said Dr.
Roger M. Perlmutter, president, Merck Research Laboratories.
“Through advanced research, Merck is demonstrating its commitment
to bringing meaningful therapeutic advances to people with cancer
throughout the world.”
The Japanese Ministry of Health, Labour, and Welfare (MHLW)
approval is supported by findings from both the KEYNOTE-024 and
KEYNOTE-010 studies. KEYNOTE-024 is a randomized, open-label, phase
3 study evaluating KEYTRUDA monotherapy at a fixed dose of 200 mg
compared to standard of care platinum-containing chemotherapy for
the treatment of patients with both squamous and non-squamous
metastatic NSCLC. The study enrolled patients who had not received
prior systemic chemotherapy treatment for their metastatic disease
and whose tumors had high PD-L1 expression (as defined by a tumor
proportion score [TPS] of 50 percent or more) with no EGFR or ALK
aberrations. KEYNOTE-010 is an open-label, randomized, phase 2/3
trial assessing two doses of KEYTRUDA (pembrolizumab) (2 mg/kg or
10 mg/kg every three weeks) compared to docetaxel (75 mg/m2 every
three weeks), a standard of care chemotherapy. This study enrolled
patients with any level of PD-L1 expression (as defined by a TPS of
one percent or more) who had progressed following
platinum-containing chemotherapy and, if appropriate, targeted
therapy for EGFR or ALK genomic tumor aberrations.
The PD-L1 IHC 22C3 PharmDx™ kit made by Dako North America,
Inc., an Agilent Technologies Company, was approved in Japan on
Nov. 25 for use in detecting PD-L1, an immune-related biomarker
expressed on some tumor cells. The diagnostic is intended to aid in
identifying appropriate patients for treatment with KEYTRUDA,
including previously treated patients whose tumors have any level
of PD-L1 expression and previously untreated patients whose tumors
have high levels of PD-L1 expression. Tumors with a TPS of less
than one percent are considered to have no PD-L1 expression.
About KEYTRUDA® (pembrolizumab)
KEYTRUDA is a humanized monoclonal antibody that works by
increasing the ability of the body’s immune system to help detect
and fight tumor cells. KEYTRUDA blocks the interaction between PD-1
and its ligands, PD-L1 and PD-L2, thereby activating T lymphocytes
which may affect both tumor cells and healthy cells.
KEYTRUDA is administered as an intravenous infusion over 30
minutes every three weeks for the approved indications. KEYTRUDA
for injection is supplied in a 100 mg single use vial.
KEYTRUDA Indications and Dosing in the U.S.
Melanoma
KEYTRUDA is indicated for the treatment of patients with
unresectable or metastatic melanoma at a dose of 2 mg/kg every
three weeks until disease progression or unacceptable toxicity.
Lung Cancer
KEYTRUDA is indicated for the first-line treatment of patients
with metastatic non-small cell lung cancer (NSCLC) whose tumors
have high PD-L1 expression [tumor proportion score (TPS) ≥50%] as
determined by an FDA-approved test, with no EGFR or ALK genomic
tumor aberrations.
KEYTRUDA (pembrolizumab) is also indicated for the treatment of
patients with metastatic NSCLC whose tumors express PD-L1 (TPS ≥1%)
as determined by an FDA-approved test, with disease progression on
or after platinum-containing chemotherapy. Patients with EGFR or
ALK genomic tumor aberrations should have disease progression on
FDA-approved therapy for these aberrations prior to receiving
KEYTRUDA.
In metastatic NSCLC, KEYTRUDA is administered at a fixed dose of
200 mg every three weeks until disease progression, unacceptable
toxicity, or up to 24 months in patients without disease
progression.
Head and Neck Cancer
KEYTRUDA is indicated for the treatment of patients with
recurrent or metastatic head and neck squamous cell carcinoma
(HNSCC) with disease progression on or after platinum-containing
chemotherapy. This indication is approved under accelerated
approval based on tumor response rate and durability of response.
Continued approval for this indication may be contingent upon
verification and description of clinical benefit in the
confirmatory trials. In HNSCC, KEYTRUDA is administered at a fixed
dose of 200 mg every three weeks until disease progression,
unacceptable toxicity, or up to 24 months in patients without
disease progression.
Selected Important Safety Information for
KEYTRUDA® (pembrolizumab)
KEYTRUDA can cause immune-mediated pneumonitis, including fatal
cases. Pneumonitis occurred in 94 (3.4%) of 2799 patients receiving
KEYTRUDA, including Grade 1 (0.8%), 2 (1.3%), 3 (0.9%), 4 (0.3%),
and 5 (0.1%) pneumonitis, and occurred more frequently in patients
with a history of prior thoracic radiation (6.9%) compared to those
without (2.9%). Monitor patients for signs and symptoms of
pneumonitis. Evaluate suspected pneumonitis with radiographic
imaging. Administer corticosteroids for Grade 2 or greater
pneumonitis. Withhold KEYTRUDA for Grade 2; permanently discontinue
KEYTRUDA for Grade 3 or 4 or recurrent Grade 2 pneumonitis.
KEYTRUDA can cause immune-mediated colitis. Colitis occurred in
48 (1.7%) of 2799 patients receiving KEYTRUDA, including Grade 2
(0.4%), 3 (1.1%), and 4 (<0.1%) colitis. Monitor patients for
signs and symptoms of colitis. Administer corticosteroids for Grade
2 or greater colitis. Withhold KEYTRUDA for Grade 2 or 3;
permanently discontinue KEYTRUDA for Grade 4 colitis.
KEYTRUDA (pembrolizumab) can cause immune-mediated hepatitis.
Hepatitis occurred in 19 (0.7%) of 2799 patients receiving
KEYTRUDA, including Grade 2 (0.1%), 3 (0.4%), and 4 (<0.1%)
hepatitis. Monitor patients for changes in liver function.
Administer corticosteroids for Grade 2 or greater hepatitis and,
based on severity of liver enzyme elevations, withhold or
discontinue KEYTRUDA.
KEYTRUDA can cause hypophysitis. Hypophysitis occurred in 17
(0.6%) of 2799 patients receiving KEYTRUDA, including Grade 2
(0.2%), 3 (0.3%), and 4 (<0.1%) hypophysitis. Monitor patients
for signs and symptoms of hypophysitis (including hypopituitarism
and adrenal insufficiency). Administer corticosteroids and hormone
replacement as clinically indicated. Withhold KEYTRUDA for Grade 2;
withhold or discontinue for Grade 3 or 4 hypophysitis.
KEYTRUDA can cause thyroid disorders, including hyperthyroidism,
hypothyroidism, and thyroiditis. Hyperthyroidism occurred in 96
(3.4%) of 2799 patients receiving KEYTRUDA, including Grade 2
(0.8%) and 3 (0.1%) hyperthyroidism. Hypothyroidism occurred in 237
(8.5%) of 2799 patients receiving KEYTRUDA, including Grade 2
(6.2%) and 3 (0.1%) hypothyroidism. Thyroiditis occurred in 16
(0.6%) of 2799 patients receiving KEYTRUDA, including Grade 2
(0.3%) thyroiditis. Monitor patients for changes in thyroid
function (at the start of treatment, periodically during treatment,
and as indicated based on clinical evaluation) and for clinical
signs and symptoms of thyroid disorders. Administer replacement
hormones for hypothyroidism and manage hyperthyroidism with
thionamides and beta-blockers as appropriate. Withhold or
discontinue KEYTRUDA for Grade 3 or 4 hyperthyroidism.
KEYTRUDA can cause type 1 diabetes mellitus, including diabetic
ketoacidosis, which have been reported in 6 (0.2%) of 2799
patients. Monitor patients for hyperglycemia or other signs and
symptoms of diabetes. Administer insulin for type 1 diabetes, and
withhold KEYTRUDA and administer antihyperglycemics in patients
with severe hyperglycemia.
KEYTRUDA can cause immune-mediated nephritis. Nephritis occurred
in 9 (0.3%) of 2799 patients receiving KEYTRUDA, including Grade 2
(0.1%), 3 (0.1%), and 4 (<0.1%) nephritis. Monitor patients for
changes in renal function. Administer corticosteroids for Grade 2
or greater nephritis. Withhold KEYTRUDA for Grade 2; permanently
discontinue KEYTRUDA for Grade 3 or 4 nephritis
KEYTRUDA can cause other clinically important immune-mediated
adverse reactions. For suspected immune-mediated adverse reactions,
ensure adequate evaluation to confirm etiology or exclude other
causes. Based on the severity of the adverse reaction, withhold
KEYTRUDA and administer corticosteroids. Upon improvement to Grade
1 or less, initiate corticosteroid taper and continue to taper over
at least 1 month. Based on limited data from clinical studies in
patients whose immune-related adverse reactions could not be
controlled with corticosteroid use, administration of other
systemic immunosuppressants can be considered. Resume KEYTRUDA
(pembrolizumab) when the adverse reaction remains at Grade 1 or
less following corticosteroid taper. Permanently discontinue
KEYTRUDA for any Grade 3 immune-mediated adverse reaction that
recurs and for any life-threatening immune-mediated adverse
reaction.
The following clinically significant immune-mediated adverse
reactions occurred in less than 1% (unless otherwise indicated) of
2799 patients: arthritis (1.5%), exfoliative dermatitis, bullous
pemphigoid, rash (1.4%), uveitis, myositis, Guillain-Barré
syndrome, myasthenia gravis, vasculitis, pancreatitis, hemolytic
anemia, and partial seizures arising in a patient with inflammatory
foci in brain parenchyma.
KEYTRUDA can cause severe or life-threatening infusion-related
reactions, which have been reported in 6 (0.2%) of 2799 patients.
Monitor patients for signs and symptoms of infusion-related
reactions, including rigors, chills, wheezing, pruritus, flushing,
rash, hypotension, hypoxemia, and fever. For Grade 3 or 4
reactions, stop infusion and permanently discontinue KEYTRUDA.
Based on its mechanism of action, KEYTRUDA can cause fetal harm
when administered to a pregnant woman. If used during pregnancy, or
if the patient becomes pregnant during treatment, apprise the
patient of the potential hazard to a fetus. Advise females of
reproductive potential to use highly effective contraception during
treatment and for 4 months after the last dose of KEYTRUDA.
KEYTRUDA was discontinued due to adverse reactions in 8% of 682
patients with metastatic NSCLC. The most common adverse event
resulting in permanent discontinuation of KEYTRUDA was pneumonitis
(1.8%). Adverse reactions leading to interruption of KEYTRUDA
occurred in 23% of patients; the most common (≥1%) were diarrhea
(1%), fatigue (1.3%), pneumonia (1%), liver enzyme elevation
(1.2%), decreased appetite (1.3%), and pneumonitis (1%). The most
common adverse reactions (occurring in at least 20% of patients and
at a higher incidence than with docetaxel) were decreased appetite
(25% vs 23%), dyspnea (23% vs 20%), and nausea (20% vs 18%).
It is not known whether KEYTRUDA is excreted in human milk.
Because many drugs are excreted in human milk, instruct women to
discontinue nursing during treatment with KEYTRUDA and for 4 months
after the final dose.
Safety and effectiveness of KEYTRUDA have not been established
in pediatric patients.
Our Focus on Cancer
Our goal is to translate breakthrough science into innovative
oncology medicines to help people with cancer worldwide. At Merck,
helping people fight cancer is our passion and supporting
accessibility to our cancer medicines is our commitment. Our focus
is on pursuing research in immuno-oncology and we are accelerating
every step in the journey – from lab to clinic – to potentially
bring new hope to people with cancer.
As part of our focus on cancer, Merck is committed to exploring
the potential of immuno-oncology with one of the fastest-growing
development programs in the industry. We are currently executing an
expansive research program that includes nearly 400 clinical trials
evaluating our anti-PD-1 therapy across more than 30 tumor types.
We also continue to strengthen our immuno-oncology portfolio
through strategic acquisitions and are prioritizing the development
of several promising immunotherapeutic candidates with the
potential to improve the treatment of advanced cancers.
For more information about our oncology clinical trials, visit
www.merck.com/clinicaltrials.
About Merck
For 125 years, Merck has been a global health care leader
working to help the world be well. Merck is known as MSD outside
the United States and Canada. Through our prescription medicines,
vaccines, biologic therapies, and animal health products, we work
with customers and operate in more than 140 countries to deliver
innovative health solutions. We also demonstrate our commitment to
increasing access to health care through far-reaching policies,
programs and partnerships. For more information, visit
www.merck.com and connect with us on Twitter, Facebook, YouTube and
LinkedIn.
Forward-Looking Statement of Merck & Co., Inc.,
Kenilworth, N.J., USA
This news release of Merck & Co., Inc., Kenilworth, N.J.,
USA (the “company”) includes “forward-looking statements” within
the meaning of the safe harbor provisions of the U.S. Private
Securities Litigation Reform Act of 1995. These statements are
based upon the current beliefs and expectations of the company’s
management and are subject to significant risks and uncertainties.
There can be no guarantees with respect to pipeline products that
the products will receive the necessary regulatory approvals or
that they will prove to be commercially successful. If underlying
assumptions prove inaccurate or risks or uncertainties materialize,
actual results may differ materially from those set forth in the
forward-looking statements.
Risks and uncertainties include but are not limited to, general
industry conditions and competition; general economic factors,
including interest rate and currency exchange rate fluctuations;
the impact of pharmaceutical industry regulation and health care
legislation in the United States and internationally; global trends
toward health care cost containment; technological advances, new
products and patents attained by competitors; challenges inherent
in new product development, including obtaining regulatory
approval; the company’s ability to accurately predict future market
conditions; manufacturing difficulties or delays; financial
instability of international economies and sovereign risk;
dependence on the effectiveness of the company’s patents and other
protections for innovative products; and the exposure to
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The company undertakes no obligation to publicly update any
forward-looking statement, whether as a result of new information,
future events or otherwise. Additional factors that could cause
results to differ materially from those described in the
forward-looking statements can be found in the company’s 2015
Annual Report on Form 10-K and the company’s other filings with the
Securities and Exchange Commission (SEC) available at the SEC’s
Internet site (www.sec.gov).
Please see Prescribing Information for KEYTRUDA
(pembrolizumab)
at http://www.merck.com/product/usa/pi_circulars/k/keytruda/keytruda_pi.pdf and
Patient Information/Medication Guide for KEYTRUDA
at http://www.merck.com/product/usa/pi_circulars/k/keytruda/keytruda_mg.pdf.
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