New KEYTRUDA® (pembrolizumab) Data to be Presented at 17th World Conference on Lung Cancer Highlight Research Across the Spectrum of Thoracic Malignancies

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November 30, 2016 7:00 am ET

Findings to be Presented in Non-Small Cell Lung Cancer, Small Cell Lung Cancer and Malignant Pleural Mesothelioma with KEYTRUDA as Monotherapy and in Combination with Other Treatments

Quality of Life Data from KEYNOTE-024 in First-Line Non-Small Cell Lung Cancer to be Presented in Plenary Session

KENILWORTH, N.J.–(BUSINESS WIRE)–Merck (NYSE:MRK), known as MSD outside the United States and Canada,
today announced that new data investigating the use of KEYTRUDA®
(pembrolizumab), the company’s anti-PD-1 therapy, across multiple
thoracic malignancies, including non-small cell lung cancer (NSCLC),
small cell lung cancer and malignant pleural mesothelioma, will be
presented at the 17th World Conference on Lung Cancer (WCLC)
hosted by the International Association for the Study of Lung Cancer in
Vienna, Austria, Dec. 4-7 (Messe Wien Exhibition & Congress Center). An
abstract evaluating quality of life outcomes in first-line NSCLC from
KEYNOTE-024 (Abstract #PL04a.01) will be included in the official WCLC
press program on Wednesday, Dec. 7.

“Based on the meaningful results already obtained in studies evaluating
the use of KEYTRUDA in certain patients with PD-L1 positive non-small
cell lung cancer, we have asked whether similar benefits might be
associated with KEYTRUDA use in treating other intrathoracic
malignancies, including small cell lung cancer and malignant pleural
mesothelioma,” said Dr. Roger M. Perlmutter, president, Merck Research
Laboratories. “We look forward to sharing our recent findings with the
scientific community as we seek to help patients facing these difficult
diseases.”

The KEYTRUDA (pembrolizumab) clinical development program includes more
than 30 tumor types in more than 360 clinical trials, including over 200
trials that combine KEYTRUDA with other cancer treatments. Merck has an
extensive research program in NSCLC and is currently advancing multiple
registration-enabling studies with KEYTRUDA as monotherapy and in
combination.

A select list of KEYTRUDA data to be featured in oral presentations
includes:

  • (Abstract #PL04a.01) Health-Related Quality of Life for
    Pembrolizumab vs Chemotherapy in Advanced NSCLC with PD-L1 TPS ≥50%:
    Data from KEYNOTE-024.
    J. Brahmer. Wednesday, Dec. 7, 8:45 a.m.
    CET (session: 8:45-9:40 a.m. CET). Location: Hall D (Plenary Hall).
    WCLC Press Program, Wednesday, Dec. 7, 10:30-11:45 a.m. CET. Location:
    Schubert 1.
  • (Abstract #OA13.03) Long-Term Overall Survival for Patients with
    Malignant Pleural Mesothelioma on Pembrolizumab Enrolled in
    KEYNOTE-028.
    E. Alley. Tuesday, Dec. 6, 2:40 p.m. CET (session:
    2:20-3:50 p.m. CET). Location: Stolz 1.
  • (Abstract #OA03.07) KEYNOTE-010: Durable Clinical Benefit in
    Patients with Previously Treated, PD-L1-Expressing NSCLC Who Completed
    Pembrolizumab.
    R. Herbst. Monday, Dec. 5, 12:05 p.m. CET (session:
    11 a.m.-12:30 p.m. CET). Location: Hall C8.
  • (Abstract #OA05.01) Pembrolizumab in Patients with Extensive-Stage
    Small Cell Lung Cancer: Updated Survival Results from KEYNOTE-028.
    P.
    Ott. Monday, Dec. 5, 2:20 p.m. CET (session: 2:20-3:50 p.m. CET).
    Location: Strauss 2.
  • (Abstract #MA09.02) Pembrolizumab + Carboplatin and Pemetrexed as
    1st-Line Therapy for Advanced Non–Small Cell Lung Cancer: KEYNOTE-021
    Cohort G.
    C. Langer. Tuesday, Dec. 6, 2:26 p.m. CET (session:
    2:20-3:50 p.m. CET). Location: Strauss 2.
  • (Abstract #MA09.11) Efficacy and Safety of Necitumumab and
    Pembrolizumab Combination Therapy in Stage IV Nonsquamous Non-Small
    Cell Lung Cancer (NSCLC).
    B. Besse. Tuesday, Dec. 6, 3:32 p.m. CET
    (session: 2:20-3:50 p.m. CET). Location: Strauss 2.
  • (Abstract #MA14.10) Relative Impact of Disease Management Costs in
    the Economics of Pembrolizumab in Previously Treated PD-L1 Positive
    Advanced NSCLC.
    T. Burke. Tuesday, Dec. 6, 5:06 p.m. CET (session:
    4-5:30 p.m. CET). Location: Strauss 2.

Additional meeting information and full abstracts are available on the
WCLC meeting
website
.

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 (pembrolizumab) Indications and Dosing

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 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 (pembrolizumab) 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 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 (pembrolizumab) 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. The incidence of new or worsening
hypothyroidism was higher in patients with HNSCC occurring in 28 (15%)
of 192 patients with HNSCC, including Grade 3 (0.5%) 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 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 (pembrolizumab) 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.

In KEYNOTE-006, KEYTRUDA was discontinued due to adverse reactions in 9%
of 555 patients with advanced melanoma; adverse reactions leading to
discontinuation in more than one patient were colitis (1.4%), autoimmune
hepatitis (0.7%), allergic reaction (0.4%), polyneuropathy (0.4%), and
cardiac failure (0.4%). Adverse reactions leading to interruption of
KEYTRUDA occurred in 21% of patients; the most common (≥1%) was diarrhea
(2.5%). The most common adverse reactions with KEYTRUDA vs ipilimumab
were fatigue (28% vs 28%), diarrhea (26% with KEYTRUDA), rash (24% vs
23%), and nausea (21% with KEYTRUDA). Corresponding incidence rates are
listed for ipilimumab only for those adverse reactions that occurred at
the same or lower rate than with KEYTRUDA.

In KEYNOTE-002, KEYTRUDA was discontinued due to adverse reactions in
12% of 357 patients with advanced melanoma; the most common (≥1%) were
general physical health deterioration (1%), asthenia (1%), dyspnea (1%),
pneumonitis (1%), and generalized edema (1%). Adverse reactions leading
to interruption of KEYTRUDA occurred in 14% of patients; the most common
(≥1%) were dyspnea (1%), diarrhea (1%), and maculopapular rash (1%). The
most common adverse reactions with KEYTRUDA vs chemotherapy were fatigue
(43% with KEYTRUDA), pruritus (28% vs 8%), rash (24% vs 8%),
constipation (22% vs 20%), nausea (22% with KEYTRUDA), diarrhea (20% vs
20%), and decreased appetite (20% with KEYTRUDA). Corresponding
incidence rates are listed for chemotherapy only for those adverse
reactions that occurred at the same or lower rate than with 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 (pembrolizumab) 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%).

KEYTRUDA was discontinued due to adverse reactions in 17% of 192
patients with HNSCC. Serious adverse reactions occurred in 45% of
patients. The most frequent serious adverse reactions reported in at
least 2% of patients were pneumonia, dyspnea, confusional state,
vomiting, pleural effusion, and respiratory failure. The most common
adverse reactions (reported in at least 20% of patients) were fatigue,
decreased appetite, and dyspnea. Adverse reactions occurring in patients
with HNSCC were generally similar to those occurring in patients with
melanoma or NSCLC, with the exception of increased incidences of facial
edema (10% all Grades; 2.1% Grades 3 or 4) and new or worsening
hypothyroidism.

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 more than 360 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
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The company undertakes no obligation to publicly update any
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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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