Opdivo (nivolumab) Plus Yervoy (ipilimumab) Shows Response in Pre-Treated Patients with Metastatic Castration-Resistant Prostate Cancer

First I-O/I-O combination regimen to demonstrate response rates in
this hard-to-treat patient population

PRINCETON, N.J.–(BUSINESS WIRE)–lt;a href=”https://twitter.com/search?q=%24BMY&src=ctag” target=”_blank”gt;$BMYlt;/agt; lt;a href=”https://twitter.com/hashtag/BMS?src=hash” target=”_blank”gt;#BMSlt;/agt;–Bristol-Myers
Squibb Company
(NYSE: BMY) today announced data evaluating Opdivo
(nivolumab) in combination with Yervoy (ipilimumab) in patients
with metastatic castration-resistant prostate cancer (mCRPC). Results
from an interim analysis of the Phase 2 CheckMate -650 trial showed that
among 32 asymptomatic or minimally symptomatic patients whose disease
had progressed after second-generation hormone therapy and who had not
received chemotherapy (cohort 1), with a median follow-up of 11.9
months, the objective response rate (ORR) was 25%. Additionally, among
30 patients whose disease progressed after taxane-based chemotherapy
(cohort 2), with a median follow-up of 13.5 months, the ORR was 10%.

Across both cohorts, higher response rates were seen in certain patient
sub-groups, including patients with high (above median) tumor mutational
burden and patients with homologous recombination deficiency.

The overall safety profile was consistent with prior studies of Opdivo
in combination with Yervoy with this dosing schedule. Grade three
to five treatment-related adverse events occurred in 42% of patients in
cohort 1 and 53% of patients in cohort 2.

“The results from CheckMate -650 provide strong rationale for the
development of combination immune checkpoint therapy for the treatment
of prostate cancer, which is considered a cold tumor with few
tumor-infiltrating lymphocytes,” said Padmanee Sharma, M.D., Ph.D.,
professor of Genitourinary Medical Oncology and Immunology at The
University of Texas MD Anderson Cancer Center. “The clinical results
from this study are encouraging and provide the foundation to test the
combination strategy in a larger cohort of patients.”

The data were featured today in an oral session (Abstract #142) at the
American Society of Clinical Oncology 2019 Genitourinary Cancers
Symposium in San Francisco.

“Assessing the effect of biomarkers on treatment outcomes is an
important part of our ongoing multidisciplinary approach to research in
translational medicine,” said Arvin Yang, M.D., Ph.D., development lead,
melanoma and genitourinary cancers, Bristol-Myers Squibb. “These interim
results are exciting and reinforce our commitment to identifying the
patient populations most likely to derive benefit from
Immuno-Oncology-based regimens across tumor types and in hard-to-treat
patient populations.”

About CheckMate -650

CheckMate -650 is an ongoing Phase 2 open-label trial, evaluating the
safety and efficacy of Opdivo in combination with Yervoy
in patients with metastatic castration-resistant prostate cancer
(mCRPC). The trial includes two cohorts: asymptomatic or minimally
symptomatic patients who progressed after second-generation hormone
therapy and have not received chemotherapy for mCRPC; and patients who
progressed after taxane-based chemotherapy. Patients received Opdivo
1 mg/kg plus Yervoy 3 mg/kg for four doses, followed by Opdivo
480 mg every four weeks. Co-primary endpoints include objective response
rate (ORR) and radiographic progression-free survival (rPFS). Safety is
a secondary endpoint. Exploratory endpoints include correlation of
biomarkers with efficacy and prostate-specific antigen (PSA) response.

About Castration-Resistant Prostate Cancer

Prostate cancer is the second most frequently diagnosed cancer in men,
with almost 1.28 million new cases diagnosed worldwide in 2018. Unlike
many early-stage prostate cancers that need normal levels of
testosterone to grow, castration-resistant prostate cancer (CRPC)
continues to grow even when the amount of testosterone in the body is
reduced to castrate levels. CRPC patients have a very high likelihood of
having or developing metastases, meaning the cancer has spread to other
areas of the body. While the five-year survival rate for most stages of
prostate cancer is almost 100%, the five-year survival rate for prostate
cancer that has spread to distant lymph nodes, bones or other organs is
approximately 29%.

Bristol-Myers Squibb: Advancing Oncology
Research

At Bristol-Myers Squibb, patients are at the center of everything we do.
The focus of our research is to increase quality, long-term survival for
patients and make cure a possibility. Through a unique multidisciplinary
approach powered by translational science, we harness our deep
scientific experience in oncology and Immuno-Oncology (I-O) research to
identify novel treatments tailored to individual patient needs. Our
researchers are developing a diverse, purposefully built pipeline
designed to target different immune system pathways and address the
complex and specific interactions between the tumor, its
microenvironment and the immune system. We source innovation internally,
and in collaboration with academia, government, advocacy groups and
biotechnology companies, to help make the promise of transformational
medicines, like I-O, a reality for patients.

About Opdivo

Opdivo is a programmed death-1 (PD-1) immune checkpoint inhibitor
that is designed to uniquely harness the body’s own immune system to
help restore anti-tumor immune response. By harnessing the body’s own
immune system to fight cancer, Opdivo has become an
important treatment option across multiple cancers.

Opdivo’s leading global development program is based on
Bristol-Myers Squibb’s scientific expertise in the field of
Immuno-Oncology, and includes a broad range of clinical trials across
all phases, including Phase 3, in a variety of tumor types. To date, the Opdivo clinical
development program has enrolled more than 25,000 patients. The Opdivo trials
have contributed to gaining a deeper understanding of the potential role
of biomarkers in patient care, particularly regarding how patients may
benefit from Opdivo across the continuum of PD-L1 expression.

In July 2014, Opdivo was the first PD-1 immune checkpoint
inhibitor to receive regulatory approval anywhere in the world. Opdivo is
currently approved in more than 65 countries, including the United
States, the European Union, Japan and China. In October 2015, the
Company’s Opdivo and Yervoy combination regimen was the
first Immuno-Oncology combination to receive regulatory approval for the
treatment of metastatic melanoma and is currently approved in more than
50 countries, including the United States and the European Union.

U.S. FDA-APPROVED INDICATIONS FOR OPDIVO®

OPDIVO® (nivolumab) as a single agent is indicated for the
treatment of patients with BRAF V600 mutation-positive unresectable or
metastatic melanoma. This indication is approved under accelerated
approval based on progression-free survival. Continued approval for this
indication may be contingent upon verification and description of
clinical benefit in the confirmatory trials.

OPDIVO® (nivolumab) as a single agent is indicated for the
treatment of patients with BRAF V600 wild-type unresectable or
metastatic melanoma.

OPDIVO® (nivolumab), in combination with YERVOY®
(ipilimumab), is indicated for the treatment of patients with
unresectable or metastatic melanoma. This indication is approved under
accelerated approval based on progression-free survival. Continued
approval for this indication may be contingent upon verification and
description of clinical benefit in the confirmatory trials.

OPDIVO® (nivolumab) is indicated for the treatment of
patients with metastatic non-small cell lung cancer (NSCLC) with
progression on or after platinum-based chemotherapy. Patients with EGFR
or ALK genomic tumor aberrations should have disease progression on
FDA-approved therapy for these aberrations prior to receiving OPDIVO.

OPDIVO® (nivolumab) is indicated for the treatment of
patients with metastatic small cell lung cancer (SCLC) with progression
after platinum-based chemotherapy and at least one other line of
therapy. This indication is approved under accelerated approval based on
overall response rate and duration of response. Continued approval for
this indication may be contingent upon verification and description of
clinical benefit in confirmatory trials.

OPDIVO® (nivolumab) is indicated for the treatment of
patients with advanced renal cell carcinoma (RCC) who have received
prior anti-angiogenic therapy.

OPDIVO® (nivolumab), in combination with YERVOY®
(ipilimumab), is indicated for the treatment of patients with
intermediate or poor risk, previously untreated advanced renal cell
carcinoma (RCC).

OPDIVO® (nivolumab) is indicated for the treatment of adult
patients with classical Hodgkin lymphoma (cHL) that has relapsed or
progressed after autologous hematopoietic stem cell transplantation
(HSCT) and brentuximab vedotin or after 3 or more lines of systemic
therapy that includes autologous HSCT. This indication is approved under
accelerated approval based on overall response rate. Continued approval
for this indication may be contingent upon verification and description
of clinical benefit in confirmatory trials.

OPDIVO® (nivolumab) is indicated for the treatment of
patients with recurrent or metastatic squamous cell carcinoma of the
head and neck (SCCHN) with disease progression on or after
platinum-based therapy.

OPDIVO® (nivolumab) is indicated for the treatment of
patients with locally advanced or metastatic urothelial carcinoma who
have disease progression during or following platinum-containing
chemotherapy or have disease progression within 12 months of neoadjuvant
or adjuvant treatment with platinum-containing chemotherapy. This
indication is approved under accelerated approval based on tumor
response rate and duration of response. Continued approval for this
indication may be contingent upon verification and description of
clinical benefit in confirmatory trials.

OPDIVO® (nivolumab), as a single agent, is indicated for the
treatment of adult and pediatric (12 years and older) patients with
microsatellite instability-high (MSI-H) or mismatch repair deficient
(dMMR) metastatic colorectal cancer (CRC) that has progressed following
treatment with a fluoropyrimidine, oxaliplatin, and irinotecan. This
indication is approved under accelerated approval based on overall
response rate and duration of response. Continued approval for this
indication may be contingent upon verification and description of
clinical benefit in confirmatory trials.

OPDIVO® (nivolumab), in combination with YERVOY®
(ipilimumab), is indicated for the treatment of adults and pediatric
patients 12 years and older with microsatellite instability-high (MSI-H)
or mismatch repair deficient (dMMR) metastatic colorectal cancer (CRC)
that has progressed following treatment with a fluoropyrimidine,
oxaliplatin, and irinotecan. This indication is approved under
accelerated approval based on overall response rate and duration of
response. Continued approval for this indication may be contingent upon
verification and description of clinical benefit in confirmatory trials.

OPDIVO® (nivolumab) is indicated for the treatment of
patients with hepatocellular carcinoma (HCC) who have been previously
treated with sorafenib. 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.

OPDIVO® (nivolumab) is indicated for the adjuvant treatment
of patients with melanoma with involvement of lymph nodes or metastatic
disease who have undergone complete resection.

IMPORTANT SAFETY INFORMATION

WARNING: IMMUNE-MEDIATED ADVERSE REACTIONS

YERVOY can result in severe and fatal immune-mediated adverse
reactions. These immune-mediated reactions may involve any organ system;
however, the most common severe immune-mediated adverse reactions are
enterocolitis, hepatitis, dermatitis (including toxic epidermal
necrolysis), neuropathy, and endocrinopathy. The majority of these
immune-mediated reactions initially manifested during treatment;
however, a minority occurred weeks to months after discontinuation of
YERVOY.

Assess patients for signs and symptoms of enterocolitis, dermatitis,
neuropathy, and endocrinopathy, and evaluate clinical chemistries
including liver function tests (LFTs), adrenocorticotropic hormone
(ACTH) level, and thyroid function tests, at baseline and before each
dose.

Permanently discontinue YERVOY and initiate systemic high-dose
corticosteroid therapy for severe immune-mediated reactions.

Immune-Mediated Pneumonitis

OPDIVO can cause immune-mediated pneumonitis. Fatal cases have been
reported. Monitor patients for signs with radiographic imaging and for
symptoms of pneumonitis. Administer corticosteroids for Grade 2 or more
severe pneumonitis. Permanently discontinue for Grade 3 or 4 and
withhold until resolution for Grade 2. In patients receiving OPDIVO
monotherapy, fatal cases of immune-mediated pneumonitis have occurred.
Immune-mediated pneumonitis occurred in 3.1% (61/1994) of patients. In
patients receiving OPDIVO 1 mg/kg with YERVOY 3 mg/kg, immune-mediated
pneumonitis occurred in 6% (25/407) of patients. In RCC patients
receiving OPDIVO 3 mg/kg with YERVOY 1 mg/kg, immune-mediated
pneumonitis occurred in 4.4% (24/547) of patients. In MSI-H/dMMR mCRC
patients receiving OPDIVO 3 mg/kg with YERVOY 1 mg/kg, immune-mediated
pneumonitis occurred in 1.7% (2/119) of patients. In Checkmate 205 and
039, pneumonitis, including interstitial lung disease, occurred in 6.0%
(16/266) of patients receiving OPDIVO. Immune-mediated pneumonitis
occurred in 4.9% (13/266) of patients receiving OPDIVO: Grade 3 (n=1)
and Grade 2 (n=12).

Immune-Mediated Colitis

OPDIVO can cause immune-mediated colitis. Monitor patients for signs and
symptoms of colitis. Administer corticosteroids for Grade 2 (of more
than 5 days duration), 3, or 4 colitis. Withhold OPDIVO monotherapy for
Grade 2 or 3 and permanently discontinue for Grade 4 or recurrent
colitis upon re-initiation of OPDIVO. When administered with YERVOY,
withhold OPDIVO and YERVOY for Grade 2 and permanently discontinue for
Grade 3 or 4 or recurrent colitis. In patients receiving OPDIVO
monotherapy, immune-mediated colitis occurred in 2.9% (58/1994) of
patients. In patients receiving OPDIVO 1 mg/kg with YERVOY 3 mg/kg,
immune-mediated colitis occurred in 26% (107/407) of patients including
three fatal cases. In RCC patients receiving OPDIVO 3 mg/kg with YERVOY
1 mg/kg, immune-mediated colitis occurred in 10% (52/547) of patients.
In MSI-H/dMMR mCRC patients receiving OPDIVO 3 mg/kg with YERVOY 1
mg/kg, immune-mediated colitis occurred in 7% (8/119) of patients.

In a separate Phase 3 study of YERVOY 3 mg/kg, severe, life-threatening,
or fatal (diarrhea of ≥7 stools above baseline, fever, ileus, peritoneal
signs; Grade 3-5) immune-mediated enterocolitis occurred in 34 (7%)
patients. Across all YERVOY-treated patients in that study (n=511), 5
(1%) developed intestinal perforation, 4 (0.8%) died as a result of
complications, and 26 (5%) were hospitalized for severe enterocolitis.

Immune-Mediated Hepatitis

OPDIVO can cause immune-mediated hepatitis. Monitor patients for
abnormal liver tests prior to and periodically during treatment.
Administer corticosteroids for Grade 2 or greater transaminase
elevations. For patients without HCC, withhold OPDIVO for Grade 2 and
permanently discontinue OPDIVO for Grade 3 or 4. For patients with HCC,
withhold OPDIVO and administer corticosteroids if AST/ALT is within
normal limits at baseline and increases to >3 and up to 5 times the
upper limit of normal (ULN), if AST/ALT is >1 and up to 3 times ULN at
baseline and increases to >5 and up to 10 times the ULN, and if AST/ALT
is >3 and up to 5 times ULN at baseline and increases to >8 and up to 10
times the ULN. Permanently discontinue OPDIVO and administer
corticosteroids if AST or ALT increases to >10 times the ULN or total
bilirubin increases >3 times the ULN. In patients receiving OPDIVO
monotherapy, immune-mediated hepatitis occurred in 1.8% (35/1994) of
patients. In patients receiving OPDIVO 1 mg/kg with YERVOY 3 mg/kg,
immune-mediated hepatitis occurred in 13% (51/407) of patients. In RCC
patients receiving OPDIVO 3 mg/kg with YERVOY 1 mg/kg, immune-mediated
hepatitis occurred in 7% (38/547) of patients. In MSI-H/dMMR mCRC
patients receiving OPDIVO 3 mg/kg with YERVOY 1 mg/kg, immune-mediated
hepatitis occurred in 8% (10/119) of patients.

In Checkmate 040, immune-mediated hepatitis requiring systemic
corticosteroids occurred in 5% (8/154) of patients receiving OPDIVO.

In a separate Phase 3 study of YERVOY 3 mg/kg, severe, life-threatening,
or fatal hepatotoxicity (AST or ALT elevations >5x the ULN or total
bilirubin elevations >3x the ULN; Grade 3-5) occurred in 8 (2%) patients,
with fatal hepatic failure in 0.2% and hospitalization in 0.4%.

Immune-Mediated Neuropathies

In a separate Phase 3 study of YERVOY 3 mg/kg, 1 case of fatal
Guillain-Barré syndrome and 1 case of severe (Grade 3) peripheral motor
neuropathy were reported.

Immune-Mediated Endocrinopathies

OPDIVO can cause immune-mediated hypophysitis, immune-mediated adrenal
insufficiency, autoimmune thyroid disorders, and Type 1 diabetes
mellitus. Monitor patients for signs and symptoms of hypophysitis, signs
and symptoms of adrenal insufficiency, thyroid function prior to and
periodically during treatment, and hyperglycemia. Administer hormone
replacement as clinically indicated and corticosteroids for Grade 2 or
greater hypophysitis. Withhold for Grade 2 or 3 and permanently
discontinue for Grade 4 hypophysitis. Administer corticosteroids for
Grade 3 or 4 adrenal insufficiency. Withhold for Grade 2 and permanently
discontinue for Grade 3 or 4 adrenal insufficiency. Administer
hormone-replacement therapy for hypothyroidism. Initiate medical
management for control of hyperthyroidism. Withhold OPDIVO for Grade 3
and permanently discontinue for Grade 4 hyperglycemia.

In patients receiving OPDIVO monotherapy, hypophysitis occurred in 0.6%
(12/1994) of patients. In patients receiving OPDIVO 1 mg/kg with YERVOY
3 mg/kg, hypophysitis occurred in 9% (36/407) of patients. In RCC
patients receiving OPDIVO 3 mg/kg with YERVOY 1 mg/kg, hypophysitis
occurred in 4.6% (25/547) of patients. In MSI-H/dMMR mCRC patients
receiving OPDIVO 3 mg/kg with YERVOY 1 mg/kg, immune-mediated
hypophysitis occurred in 3.4% (4/119) of patients. In patients receiving
OPDIVO monotherapy, adrenal insufficiency occurred in 1% (20/1994) of
patients. In patients receiving OPDIVO 1 mg/kg with YERVOY 3 mg/kg,
adrenal insufficiency occurred in 5% (21/407) of patients. In RCC
patients receiving OPDIVO 3 mg/kg with YERVOY 1 mg/kg, adrenal
insufficiency occurred in 7% (41/547) of patients. In MSI-H/dMMR mCRC
patients receiving OPDIVO 3 mg/kg with YERVOY 1 mg/kg, adrenal
insufficiency occurred in 5.9% (7/119) of patients. In patients
receiving OPDIVO monotherapy, hypothyroidism or thyroiditis resulting in
hypothyroidism occurred in 9% (171/1994) of patients. Hyperthyroidism
occurred in 2.7% (54/1994) of patients receiving OPDIVO monotherapy. In
patients receiving OPDIVO 1 mg/kg with YERVOY 3 mg/kg, hypothyroidism or
thyroiditis resulting in hypothyroidism occurred in 22% (89/407) of
patients. Hyperthyroidism occurred in 8% (34/407) of patients receiving
this dose of OPDIVO with YERVOY. In RCC patients receiving OPDIVO 3
mg/kg with YERVOY 1 mg/kg, hypothyroidism or thyroiditis resulting in
hypothyroidism occurred in 22% (119/547) of patients. Hyperthyroidism
occurred in 12% (66/547) of patients receiving this dose of OPDIVO with
YERVOY. In MSI-H/dMMR mCRC patients receiving OPDIVO 3 mg/kg with YERVOY
1 mg/kg, hypothyroidism or thyroiditis resulting in hypothyroidism
occurred in 15% (18/119) of patients. Hyperthyroidism occurred in 12%
(14/119) of patients. In patients receiving OPDIVO monotherapy, diabetes
occurred in 0.9% (17/1994) of patients. In patients receiving OPDIVO 1
mg/kg with YERVOY 3 mg/kg, diabetes occurred in 1.5% (6/407) of
patients. In RCC patients receiving OPDIVO 3 mg/kg with YERVOY 1 mg/kg,
diabetes occurred in 2.7% (15/547) of patients.

In a separate Phase 3 study of YERVOY 3 mg/kg, severe to
life-threatening immune-mediated endocrinopathies (requiring
hospitalization, urgent medical intervention, or interfering with
activities of daily living; Grade 3-4) occurred in 9 (1.8%) patients.
All 9 patients had hypopituitarism, and some had additional concomitant
endocrinopathies such as adrenal insufficiency, hypogonadism, and
hypothyroidism. Six of the 9 patients were hospitalized for severe
endocrinopathies.

Immune-Mediated Nephritis and Renal Dysfunction

OPDIVO can cause immune-mediated nephritis. Monitor patients for
elevated serum creatinine prior to and periodically during treatment.
Administer corticosteroids for Grades 2-4 increased serum creatinine.
Withhold OPDIVO for Grade 2 or 3 and permanently discontinue for Grade 4
increased serum creatinine. In patients receiving OPDIVO monotherapy,
immune-mediated nephritis and renal dysfunction occurred in 1.2%
(23/1994) of patients. In patients receiving OPDIVO 1 mg/kg with YERVOY
3 mg/kg, immune-mediated nephritis and renal dysfunction occurred in
2.2% (9/407) of patients. In RCC patients receiving OPDIVO 3 mg/kg with
YERVOY 1 mg/kg, immune-mediated nephritis and renal dysfunction occurred
in 4.6% (25/547) of patients. In MSI-H/dMMR mCRC patients receiving
OPDIVO 3 mg/kg with YERVOY 1 mg/kg, immune-mediated nephritis and renal
dysfunction occurred in 1.7% (2/119) of patients.

Immune-Mediated Skin Adverse Reactions and Dermatitis

OPDIVO can cause immune-mediated rash, including Stevens-Johnson
syndrome (SJS) and toxic epidermal necrolysis (TEN), some cases with
fatal outcome. Administer corticosteroids for Grade 3 or 4 rash.
Withhold for Grade 3 and permanently discontinue for Grade 4 rash. For
symptoms or signs of SJS or TEN, withhold OPDIVO and refer the patient
for specialized care for assessment and treatment; if confirmed,
permanently discontinue. In patients receiving OPDIVO monotherapy,
immune-mediated rash occurred in 9% (171/1994) of patients. In patients
receiving OPDIVO 1 mg/kg with YERVOY 3 mg/kg, immune-mediated rash
occurred in 22.6% (92/407) of patients. In RCC patients receiving OPDIVO
3 mg/kg with YERVOY 1 mg/kg, immune-mediated rash occurred in 16.6%
(91/547) of patients. In MSI-H/dMMR mCRC patients receiving OPDIVO 3
mg/kg with YERVOY 1 mg/kg, immune-mediated rash occurred in 14% (17/119)
of patients.

In a separate Phase 3 study of YERVOY 3 mg/kg, severe, life-threatening,
or fatal immune-mediated dermatitis (eg, Stevens-Johnson syndrome, toxic
epidermal necrolysis, or rash complicated by full thickness dermal
ulceration, or necrotic, bullous, or hemorrhagic manifestations; Grade
3-5) occurred in 13 (2.5%) patients. 1 (0.2%) patient died as a result
of toxic epidermal necrolysis. 1 additional patient required
hospitalization for severe dermatitis.

Immune-Mediated Encephalitis

OPDIVO can cause immune-mediated encephalitis. Evaluation of patients
with neurologic symptoms may include, but not be limited to,
consultation with a neurologist, brain MRI, and lumbar puncture.

Contacts

Bristol-Myers Squibb Company
Media Inquiries:
Eric
Van Zanten
610-529-6219
eric.vanzanten@bms.com

Investors:
Tim
Power
609-252-7509
timothy.power@bms.com
or
Bill
Szablewski
609-252-5894
william.szablewski@bms.com

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