On December 6, 2016 Cellectar Biosciences, Inc. (Nasdaq: CLRB) (the "company"), an oncology-focused, clinical stage biotechnology company, reported that it presented a poster at the 58th Annual Meeting of the American Society of Hematology (ASH) (Free ASH Whitepaper) in San Diego, which provides highlights of the company’s ongoing Phase I dose escalation clinical study of CLR 131 to assess safety and tolerability of the compound in patients with relapsed or refractory multiple myeloma (Filing, 8-K, Cellectar Biosciences, DEC 6, 2016, View Source [SID1234516979]). The poster provided detailed data related to the first two study cohorts.

The poster followed patients from initial infusion of CLR 131, the company’s lead PDC radiotherapeutic, through November 1, 2016. Results demonstrated all eight evaluable patients (of the total of ten enrolled) achieving a minimum of stable disease. The poster also reported a mean of approximately three months of progression-free survival (PFS) in Cohort 1 and four months in Cohort 2. To date, one patient in Cohort 2 continues to experience PFS. Significantly, four of eight patients experienced a greater than 50 percent reduction in serum free light chains (FLC), which are a key efficacy indicator for multiple myeloma. Per the International Myeloma Working Group (IMWG) criteria, in the absence of M protein, an FLC reduction of 50 percent or greater, is defined as a partial response. Overall, Cohort 2 patients experienced a more significant FLC reduction and a more sustained FLC response versus Cohort 1, with the difference in reduction being maintained across the entire study, and increasing at the subsequent evaluation time points. Cohort 2 patients achieved a 20 percent greater reduction in FLC on day 22 than was experienced by patients in Cohort 1, a 38 percent greater reduction at Day 43 and 43 percent greater FLC reduction at the final evaluation time point, Day 64.

Schedule your 30 min Free 1stOncology Demo!
Discover why more than 1,500 members use 1stOncology™ to excel in:

Early/Late Stage Pipeline Development - Target Scouting - Clinical Biomarkers - Indication Selection & Expansion - BD&L Contacts - Conference Reports - Combinatorial Drug Settings - Companion Diagnostics - Drug Repositioning - First-in-class Analysis - Competitive Analysis - Deals & Licensing

                  Schedule Your 30 min Free Demo!

Importantly, seven of eight evaluable patients achieved a reduction in either serum or urine M protein, which also are key efficacy indicators for multiple myeloma. Similar to the FLC marker, the Cohort 2 reduction of M protein was more sustained with the patients experiencing continued reduction in M protein beyond day 64. It is also important to note that based upon M protein reduction 38 percent of patients experienced a minimal response at these low, one-time doses.

The primary endpoint for this study is to determine the safety and tolerability of CLR 131 in a heavily pre-treated patient population. Evaluable study patients received an average of four prior lines of treatment. The adverse event profile in both cohorts was similar and showed no dose dependency. While the leading adverse events were leukopenia and thrombocytopenia (30 percent each) with a median grade of 2 (mild to moderate) for both, there have been no dose-limiting toxicity events to date. Importantly, no patients experienced non-hematologic adverse events as seen with many other compounds used to treat this patient population. Specifically, there were no reports of peripheral neuropathy, fatigue, cardiovascular events, or venous thromboembolisms. The efficacy and safety profile of CLR 131 shown to date allows future development of the compound, either at the Cohort 2 dose of 18.75 mCi/m2 or at one of the future higher doses being tested. The study is currently completing Cohort 3 at a single 25 mCi/m2 dose.

"ASH is a prestigious conference and this presentation represents a peer reviewed opportunity to report encouraging efficacy and safety data from our Phase I study of CLR 131 in relapsed/refractory multiple myeloma," said Jim Caruso, president and CEO of Cellectar Biosciences. "We look forward to reporting data from Cohort 3 at a single 25 mCi/m2 dose and the initiation of our NCI-sponsored Phase II trial in multiple myeloma and other hematologic malignancies."

The Phase I multi-center, open label, dose escalation study described in the poster outlines that CLR 131 was administered as a single dose, 30-minute intravenous infusion on Day 1 with a 40 mg oral dexamethasone dose weekly for 12 weeks. Each cohort consisted of five patients, of which four were evaluable (three men, one woman in Cohort 1 and two men, two women in Cohort 2). Patients in both cohorts received an average of 4 prior treatments. Half of all patients received a stem cell transplant. All patients received proteasome inhibitors and immunomodulatory drugs prior to enrollment as well as triple combination therapy at least once.

About CLR 131
CLR 131 is an investigational compound under development for a range of hematologic malignancies. It is currently being evaluated in a Phase I clinical trial in patients with relapsed or refractory multiple myeloma. The company plans to initiate a Phase II clinical study to assess efficacy in a range of B-cell malignancies in the first quarter of 2017. Based upon pre-clinical and interim Phase I study data, treatment with CLR 131 provides a novel approach to treating hematological diseases and may provide patients with therapeutic benefits, including overall response rate (ORR), an improvement in progression-free survival (PFS) and overall quality of life. CLR 131 utilizes the company’s patented PDC tumor targeting delivery platform to deliver a cytotoxic radioisotope, iodine-131 directly to tumor cells. The FDA has granted Cellectar an orphan drug designation for CLR 131 in the treatment of multiple myeloma.

About Phospholipid Drug Conjugates (PDCs)
Cellectar’s product candidates are built upon its patented cancer cell-targeting delivery and retention platform of optimized phospholipid ether-drug conjugates (PDCs). The company deliberately designed its phospholipid ether (PLE) carrier platform to be coupled with a variety of payloads to facilitate both therapeutic and diagnostic applications. The basis for selective tumor targeting of our PDC compounds lies in the differences between the plasma membranes of cancer cells compared to those of normal cells. Cancer cell membranes are highly enriched in lipid rafts, which are glycolipoprotein microdomains of the plasma membrane of cells that contain high concentrations of cholesterol and sphingolipids, and serve to organize cell surface and intracellular signaling molecules. PDCs have been tested in over 70 different xenograft models of cancer.

About Relapsed or Refractory Multiple Myeloma
Multiple myeloma is the second most common blood or hematologic cancer with approximately 30,000 new cases in the United States every year. It affects a specific type of blood cells known as plasma cells. Plasma cells are white blood cells that produce antibodies to help fight infections. While treatable for a time, multiple myeloma is incurable and almost all patients will relapse or the cancer will become resistant/refractory to current therapies.

On December 6, 2016 Celgene Corporation (NASDAQ:CELG) reported interim results from the ABOUND clinical trial program evaluating the use of ABRAXANE (paclitaxel protein-bound particles for injectable suspension) (albumin-bound) in patients with advanced non-small cell lung cancer (NSCLC) (Press release, Celgene, DEC 6, 2016, View Source [SID1234516944]). Interim data being presented from the ABOUND trials during the IASLC 17th World Conference on Lung Cancer (WCLC) reinforces the benefit of ABRAXANE/carboplatin doublet therapy in first-line NSCLC.

Schedule your 30 min Free 1stOncology Demo!
Discover why more than 1,500 members use 1stOncology™ to excel in:

Early/Late Stage Pipeline Development - Target Scouting - Clinical Biomarkers - Indication Selection & Expansion - BD&L Contacts - Conference Reports - Combinatorial Drug Settings - Companion Diagnostics - Drug Repositioning - First-in-class Analysis - Competitive Analysis - Deals & Licensing

                  Schedule Your 30 min Free Demo!

Interim ABOUND.70+ data in 128 elderly patients (≥ 70 years old) receiving first-line treatment with ABRAXANE/carboplatin for advanced NSCLC found that 91 (73%) patients experienced grade ≥2 peripheral neuropathy (PN) or grade ≥3 myelosuppression [primary endpoint]. At the time of the analyses, the median overall survival was 14.6 months and the median progression-free survival was 6.2 months, pooled across the two treatment arms [secondary endpoints]. Patients were randomized to receive first-line treatment with ABRAXANE/carboplatin either continuous weekly or weekly every three weeks with a one-week break.i Overall, 80 percent of patients discontinued treatment and the majority did so due to adverse events (24 percent) or disease progression (34 percent). Grade ≥2 PN was reported in 34% of patients, and grade ≥3 neutropenia, anemia, and thrombocytopenia was observed in 52%, 21% and 21% of patients, respectively. i

The interim ABOUND.sqm data in 284 patients receiving first-line induction treatment with ABRAXANE/carboplatin for stage IIIB/IV squamous NSCLC showed that the safety profile was consistent with that previously reported for the squamous subset in the pivotal Phase III trial.ii,iii During the induction phase, all patients received four 21-day cycles of standard ABRAXANE/carboplatin therapy.ii Overall, 119 patients (42 percent) discontinued treatment during the induction phase. The majority of patients discontinued treatment due to disease progression (34 percent) or adverse events (24 percent). The most common grade 3/4 treatment emergent adverse events (TEAEs) were hematologic and included anemia (26 percent), neutropenia (43 percent) and thrombocytopenia (15 percent).ii

Both ABOUND trials also evaluated quality of life utilizing the Lung Cancer Symptom 3-item index Scale (LCSS), Symptom Burden Index, Lung Cancer Symptom and Pulmonary Symptom Scores and the EuroQol five dimensions, five level questionnaire (EQ-5D-5L). These interim analyses suggest that quality of life was generally maintained or improved in both patient populations.iv,v

"These early data from the ABOUND clinical trial program are very encouraging, as they are consistent with the findings related to these hard to treat non-small cell lung cancer patient subgroups seen in the pivotal ABRAXANE Phase III trial," said Michael Pehl, President, Hematology and Oncology for Celgene. "These data, coupled with the ongoing studies of ABRAXANE in combination with novel agents and immunotherapies, provide us with a deeper understanding of how to treat challenging patient populations and will help us continue to develop future treatment options."

With the rapidly evolving lung cancer treatment landscape, Celgene remains committed to continuing to explore new combinations that will benefit those living with lung cancer, including patients who may not benefit from immunotherapy and targeted therapy. ABRAXANE is being actively evaluated as a foundation therapy in these patients.

Interim results of the phase I study of the immunotherapy agent nivolumab in combination with ABRAXANE/carboplatin in 22 patients with Stage IIIB/IV NSCLC will also be presented at WCLC. Patients received four cycles of standard ABRAXANE/carboplatin therapy in combination with nivolumab, followed by nivolumab monotherapy starting at cycle 5. The primary endpoints were number of patients with dose limiting toxicity and percentage of patients with grade 3/4 TEAEs or treatment discontinuation due to a TEAE. The interim data suggests that combining ABRAXANE/carboplatin with nivolumab may have promising anti-tumor activity in patients with advanced NSCLC with no unexpected adverse events (AEs).vi

The most common grade 3/4 AEs observed during the study included neutropenia (45 percent), anemia (35 percent), hypokalemia (15 percent), and vomiting (15 percent).vi The study has been expanded and patients are currently enrolling in part 2. Additional data on the safety and efficacy of this combination in multiple tumor types will be presented at a future medical meeting.

Additional ABRAXANE Data Presented at WCLC

There will also be an oral presentation at WCLC focused on new findings from the phase III registration study for ABRAXANE (Abstract 4460), which reports on the impact of depth of response on survival in patients with advanced NSCLC treated with first-line chemotherapy. Real-world analyses of US veterans with NSCLC are also being presented at WCLC, evaluating prevalence of squamous NSCLC in veterans vs. the general population (Abstract 4737) and the prevalence of autoimmune disease in veterans with NSCLC (Abstract 4745).

Additional investigator initiated studies presented at WCLC also evaluated ABRAXANE as first-line (Posters P2.03a-028 and P2.06-018), second-line (Posters P2.03a-040, P2.03a-054 and P2.03a-056) or third-line (Poster P2.06-015) treatment for advanced NSCLC patients, as well as in the adjuvant (Poster P2.03a-070) and neoadjuvant (Poster P2.04-034) settings and in chemo-naïve patients with an EGFR mutation (Poster P3.02b-061).

ABOUT ABOUND

ABOUND is a multi-phase, open-label, multicenter clinical trial program evaluating the use of ABRAXANE in combination with carboplatin or other novel agents, including immunotherapy, as first- or second-line treatment of patients with advanced non-small cell lung cancer (NSCLC). The ABOUND trials included patients 70 years and older, as well as those with poorer performance status or squamous disease and those receiving second-line+ treatment.vii,viii,ix,x

ABOUT THE ABRAXANE/NIVOLUMAB STUDY

This is a phase I, open-label, multicenter, safety study of ABRAXANE-based chemotherapy regimens administered prior to and/or in combination with nivolumab in pancreatic cancer, NSCLC and metastatic breast cancer. This is a six arm study assessing two treatment arms per tumor-type/indication.

About ABRAXANE (nab-paclitaxel)

ABRAXANE is indicated for the first-line treatment of locally advanced or metastatic non-small cell lung cancer, in combination with carboplatin, in patients who are not candidates for curative surgery or radiation therapy.

Important Safety Information

WARNING – NEUTROPENIA

Do not administer ABRAXANE therapy to patients who have baseline neutrophil counts of less than 1500 cells/mm3. In order to monitor the occurrence of bone marrow suppression, primarily neutropenia, which may be severe and result in infection, it is recommended that frequent peripheral blood cell counts be performed on all patients receiving ABRAXANE
Note: An albumin form of paclitaxel may substantially affect a drug’s functional properties relative to those of drug in solution. DO NOT SUBSTITUTE FOR OR WITH OTHER PACLITAXEL FORMULATIONS
CONTRAINDICATIONS

Neutrophil Counts

ABRAXANE should not be used in patients who have baseline neutrophil counts of < 1500cells/mm3
Hypersensitivity

Patients who experience a severe hypersensitivity reaction to ABRAXANE should not be rechallenged with the drug
WARNINGS AND PRECAUTIONS

Hematologic Effects

Bone marrow suppression (primarily neutropenia) is dose-dependent and a dose-limiting toxicity of ABRAXANE. In a clinical study, Grade 3-4 neutropenia occurred in 47% of patients with non-small cell lung cancer (NSCLC)
Monitor for myelotoxicity by performing complete blood cell counts frequently, including prior to dosing on Days 1, 8, and 15
Do not administer ABRAXANE to patients with baseline absolute neutrophil counts (ANC) of less than 1500 cells/mm3
In the case of severe neutropenia ( < 500 cells/mm3 for 7 days or more) during a course of ABRAXANE therapy, reduce the dose of ABRAXANE in subsequent courses in patients with NSCLC
Resume treatment if recommended at permanently reduced doses for both weekly ABRAXANE and every-3-week carboplatin after ANC recovers to at least 1500 cells/mm3 and platelet count of at least 100,000 cells/mm3 on Day 1 or to an ANC of at least 500 cells/mm3 and platelet count of at least 50,000 cells/mm3 on Days 8 or 15 of the cycle
Nervous System

Sensory neuropathy is dose- and schedule-dependent
The occurrence of Grade 1 or 2 sensory neuropathy does not generally require dose modification
If ≥ Grade 3 sensory neuropathy develops, withhold ABRAXANE treatment until resolution to ≤ Grade 1 followed by a dose reduction for all subsequent courses of ABRAXANE
Hypersensitivity

Severe and sometimes fatal hypersensitivity reactions, including anaphylactic reactions, have been reported
Patients who experience a severe hypersensitivity reaction to ABRAXANE should not be rechallenged with this drug
Hepatic Impairment

Because the exposure and toxicity of paclitaxel can be increased with hepatic impairment, administration of ABRAXANE in patients with hepatic impairment should be performed with caution
Patients with hepatic impairment may be at an increased risk of toxicity, particularly from myelosuppression, and should be monitored for development of profound myelosuppression
For NSCLC, the starting dose should be reduced for patients with moderate or severe hepatic impairment
Albumin (Human)

ABRAXANE contains albumin (human), a derivative of human blood
Use in Pregnancy: Pregnancy Category D

ABRAXANE can cause fetal harm when administered to a pregnant woman
If this drug is used during pregnancy, or if the patient becomes pregnant while receiving this drug, the patient should be apprised of the potential hazard to the fetus
Women of childbearing potential should be advised to avoid becoming pregnant while receiving ABRAXANE
Use in Men

Men should be advised not to father a child while receiving ABRAXANE
ADVERSE REACTIONS

Non-Small Cell Lung Cancer (NSCLC) Study

The most common adverse reactions (≥20%) of ABRAXANE in combination with carboplatin are anemia, neutropenia, thrombocytopenia, alopecia, peripheral neuropathy, nausea, and fatigue
The most common serious adverse reactions of ABRAXANE in combination with carboplatin for NSCLC are anemia (4%) and pneumonia (3%)
The most common adverse reactions resulting in permanent discontinuation of ABRAXANE are neutropenia (3%), thrombocytopenia (3%), and peripheral neuropathy (1%)
The most common adverse reactions resulting in dose reduction of ABRAXANE are neutropenia (24%), thrombocytopenia (13%), and anemia (6%)
The most common adverse reactions leading to withholding or delay in ABRAXANE dosing are neutropenia (41%), thrombocytopenia (30%), and anemia (16%)
The following common (≥10% incidence) adverse reactions were observed at a similar incidence in ABRAXANE plus carboplatin-treated and paclitaxel injection plus carboplatin-treated patients: alopecia (56%), nausea (27%), fatigue (25%), decreased appetite (17%), asthenia (16%), constipation (16%), diarrhea (15%), vomiting (12%), dyspnea (12%), and rash (10%); incidence rates are for the ABRAXANE plus carboplatin treatment group
Adverse reactions with a difference of ≥2%, Grade 3 or higher, with combination use of ABRAXANE and carboplatin vs combination use of paclitaxel injection and carboplatin in NSCLC are anemia (28%, 7%), neutropenia (47%, 58%), thrombocytopenia (18%, 9%), and peripheral neuropathy (3%, 12%), respectively
Adverse reactions with a difference of ≥5%, Grades 1-4, with combination use of ABRAXANE and carboplatin vs combination use of paclitaxel injection and carboplatin in NSCLC are anemia (98%, 91%), thrombocytopenia (68%, 55%), peripheral neuropathy (48%, 64%), edema peripheral (10%, 4%), epistaxis (7%, 2%), arthralgia (13%, 25%), and myalgia (10%, 19%), respectively
Neutropenia (all grades) was reported in 85% of patients who received ABRAXANE and carboplatin vs 83% of patients who received paclitaxel injection and carboplatin
Postmarketing Experience With ABRAXANE and Other Paclitaxel Formulations

Severe and sometimes fatal hypersensitivity reactions have been reported with ABRAXANE. The use of ABRAXANE in patients previously exhibiting hypersensitivity to paclitaxel injection or human albumin has not been studied
There have been reports of congestive heart failure, left ventricular dysfunction, and atrioventricular block with ABRAXANE, primarily among individuals with underlying cardiac history or prior exposure to cardiotoxic drugs
There have been reports of extravasation of ABRAXANE. Given the possibility of extravasation, it is advisable to monitor closely the ABRAXANE infusion site for possible infiltration during drug administration
DRUG INTERACTIONS

Caution should be exercised when administering ABRAXANE concomitantly with medicines known to inhibit or induce either CYP2C8 or CYP3A4
USE IN SPECIFIC POPULATIONS

Nursing Mothers

It is not known whether paclitaxel is excreted in human milk. Because many drugs are excreted in human milk and because of the potential for serious adverse reactions in nursing infants, a decision should be made to discontinue nursing or to discontinue the drug, taking into account the importance of the drug to the mother
Pediatric

The safety and effectiveness of ABRAXANE in pediatric patients have not been evaluated
Geriatric

Myelosuppression, peripheral neuropathy, and arthralgia were more frequent in patients ≥65 years of age treated with ABRAXANE and carboplatin in NSCLC
Renal Impairment

There are insufficient data to permit dosage recommendations in patients with severe renal impairment or end stage renal disease (estimated creatinine clearance < 30 mL/min)
DOSAGE AND ADMINISTRATION

Do not administer ABRAXANE to any patient with total bilirubin greater than 5 x ULN or AST greater than 10 x ULN
Reduce starting dose in NSCLC patients with moderate to severe hepatic impairment
Dose reductions or discontinuation may be needed based on severe hematologic or neurologic toxicity
Monitor patients closely
Please see full Prescribing Information, including Boxed WARNING.

Please refer to the Summary of Product Characteristics for full European prescribing information.

On December 6, 2016 Stemline Therapeutics, Inc. (Nasdaq:STML) reported the presentation of SL-401 lead-in data from its ongoing Phase 2 trial in acute myeloid leukemia (AML) in remission with minimal residual disease (MRD) and ongoing Phase 2 trial in high-risk myeloproliferative neoplasms (MPN) at the 2016 American Society of Hematology (ASH) (Free ASH Whitepaper) Annual Meeting (Press release, Stemline Therapeutics, DEC 6, 2016, View Source [SID1234516963]). The AML/MRD results were delivered via oral presentation by Andrew A. Lane, M.D., Ph.D., from the Dana-Farber Cancer Institute (Boston, MA) and the MPN results were presented by Mrinal S. Patnaik, M.D. from the Mayo Clinic (Rochester, MN).

Schedule your 30 min Free 1stOncology Demo!
Discover why more than 1,500 members use 1stOncology™ to excel in:

Early/Late Stage Pipeline Development - Target Scouting - Clinical Biomarkers - Indication Selection & Expansion - BD&L Contacts - Conference Reports - Combinatorial Drug Settings - Companion Diagnostics - Drug Repositioning - First-in-class Analysis - Competitive Analysis - Deals & Licensing

                  Schedule Your 30 min Free Demo!

The full presentations are available on the Stemline website, under the "Scientific Presentations" tab (see: View Source).

Safety Overview

SL-401 was found to be safe and well tolerated, and side effects were predictable and manageable. The lead-in dose escalation stages of both Phase 2 studies (3 x 3 design) were completed without dose limiting toxicity (DLT) and a maximum tolerated dose (MTD) was not reached in either study (n=9 patients in AML/MRD lead-in; n=9 patients in MPN lead-in). 12 ug/kg/day was the highest tested dose in both studies and is currently the dose level being used in the expansion stage of both studies.
Efficacy Overview

AML/MRD – Early signs of efficacy in the AML study included an MRD+ AML patient who sustained a decrease in MRD, determined locally, treated at 12 ug/kg/day who then went on to stem cell transplant. The expansion stage is currently enrolling and, for uniformity, will utilize a central facility for MRD analysis.

MPN – Early signs of efficacy in the MPN study including a patient with chronic myelomonocytic leukemia (CMML) who sustained a bone marrow complete response (BMCR) and reduction in spleen size. The expansion stage is currently enrolling CMML as well as additional MPN types including myelofibrosis, mastocytosis, and primary eosinophilic disorder.
Andrew A. Lane, M.D., Ph.D., lead author on the AML study, commented, "Given the unacceptably high relapse rates seen in AML, MRD has emerged as an important predictor of relapse with CD123 as a key target for therapy. The preliminary results seen with SL-401 in this setting are promising. We look forward to enrolling patients in the expansion stage of the trial as we continue to optimize and refine methods to assess and follow MRD."

Mrinal S. Patnaik, M.D., lead author on the MPN study, noted, "The early data from the dose escalation portion of the trial suggests SL-401 can be dosed safely in this patient population. Additionally, we are observing encouraging signs of clinical activity in several patients. We look forward to enrolling patients in the expansion stage of the trial."

On December 5, 2016 Onconova Therapeutics, Inc. (NASDAQ:ONTX), a clinical-stage biopharmaceutical company focused on discovering and developing novel products to treat cancer, reported the presentation of data from a Phase 2 clinical trial of oral rigosertib and azacitidine in higher-risk myelodysplastic syndromes (HR-MDS) at the 58th American Society of Hematology (ASH) (Free ASH Whitepaper) Annual Meeting in San Diego, California (Press release, Onconova, DEC 5, 2016, View Source [SID1234516918]).

Schedule your 30 min Free 1stOncology Demo!
Discover why more than 1,500 members use 1stOncology™ to excel in:

Early/Late Stage Pipeline Development - Target Scouting - Clinical Biomarkers - Indication Selection & Expansion - BD&L Contacts - Conference Reports - Combinatorial Drug Settings - Companion Diagnostics - Drug Repositioning - First-in-class Analysis - Competitive Analysis - Deals & Licensing

                  Schedule Your 30 min Free Demo!

"The complete remission rate amongst HMA-naïve HR-MDS patients is higher and responses occur more rapidly and durably with the oral rigosertib combination compared to historic single-agent azacitidine," commented Lewis R. Silverman, M.D., lead investigator in the trial and Associate Professor of Medicine, Hematology and Medical Oncology, at the Icahn School of Medicine at Mount Sinai. "Furthermore, the addition of oral rigosertib to azacitidine does not substantially change the adverse event profile of single-agent azacitidine, and thus may overcome the limitations identified in other HMA-based combinations."

The current standard of care for higher-risk MDS patients is one of two approved hypomethylating agents (azacitidine and decitabine, approved by the FDA in 2004 and 2006). Although these drugs are currently the standard of care in HR-MDS therapy, their overall response rate and duration of benefit is limited to a subset of eligible patients and all responding patients ultimately progress. Thus, there is an urgent need for improving therapeutic options for newly diagnosed HR-MDS patients. The 09-08 trial tested oral rigosertib in combination with injectable azacitidine in a dose ranging study (Phase 1), followed by an expansion cohort (Phase 2) to evaluate the efficacy and safety of the combination. Both 1st-line and 2nd-line HR-MDS patients were included in the study.

Summary of Presented Data from the 09-08 Combination Therapy Trial

Patient Demographics:

Thirty-three of 40 MDS patients enrolled were evaluable for response at the time of this analysis.
The median age was 66, with 73% of male patients. ECOG performance status was 0 or 1 in 95% of the patients. IPSS-R distribution was: 7.5% Low, 12.5% Intermediate, 37.5% High, 32.5% Very High and 10% unknown.
Safety/Tolerability of the Combination:

Oral rigosertib (560 mg qAM, 280 mg qPM) was administered on Day 1-21 of a 28-day cycle. Azacitidine 75 mg/m2/day SC or IV was administered for 7 days starting on Day 8.
The combination of oral rigosertib and azacitidine was well tolerated.
Adverse events of Grade ≥3 experienced across all cycles with the combination included thrombocytopenia (33%), neutropenia (30%), haematuria (13%), dysuria (8%), diarrhoea (3%) and arthralgia (3%).
Notably, the side effects were similar to those previously reported for azacitidine administered alone.
Efficacy of the Combination:

Thirty-three (20 HMA naïve; 13 HMA resistant) MDS patients were evaluable for efficacy analysis per IWG 2006 criteria (Cheson et al., Blood 2006).
25 of 33 (76%) patients responded per IWG — 85% of HMA naïve patients experienced a response and 62% of HMA resistant patients experienced a response.
7 of 20 (35%) HMA naïve and 1 of 13 (8%) HMA-resistant patients achieved a complete remission (CR). The median duration of CR was 8.0 months, which compares very favorably to the historic duration of CR and PR with single-agent azacitidine of 3.2 months1.
Hematologic improvement (HI) was observed in 11 of 33 patients (33%) and the median duration of response was 7.4 months for erythroid response, 8 months for platelet response, and 6.2 months for neutrophil response. Marrow CR was observed in 16 of 33 (48%) patients and the median duration of response was 12.3 months. Marrow CR combined with HI was observed in 10 of 33 (30%) patients.
The poster entitled, "Combination of Oral Rigosertib and Injectable Azacitidine in Patients with Myelodysplastic Syndromes (MDS): Results from a Phase II Study," was presented by Dr. Shyamala Navada of Mount Sinai School of Medicine at the Myelodysplastic Syndromes Session on Sunday, December 4, 2016 at the ASH (Free ASH Whitepaper) Annual Meeting in San Diego, California. A copy of the poster is available by visiting the Scientific Presentations section under the Investors & Media tab of Onconova’s website.

"We are pleased by the positive efficacy signal observed over extended periods of treatment, and the acceptable tolerability of oral rigosertib and azacitidine in 1st-line HR-MDS," stated Ramesh Kumar, Ph.D., President and CEO of Onconova. "We presented Phase 2 data to the FDA as part of our End-of-Phase 2 meeting in September 2016, and based on these discussions, we are designing a randomized, placebo controlled Phase 3 clinical trial comparing the combination of oral rigosertib plus azacitidine to azacitidine plus placebo in 1st-line HR-MDS patients with the primary composite endpoint of CR and PR rate per 2006 IWG criteria. Based on our discussions with the FDA the primary efficacy endpoint of this trial will be composite response and not survival, permitting accelerated evaluation of outcomes."

Comprehensive Safety Assessment of Rigosertib in MDS Patients

In a second poster at the conference a safety review of 557 MDS/AML patients treated with rigosertib in clinical studies, including the randomized Phase 3 ONTIME trial was presented. The poster entitled, "Comprehensive Analysis of Safety: Rigosertib in 557 Patients with Myelodysplastic Syndromes (MDS) and Acute Myeloid Leukemia (AML)," can be accessed by visiting the Scientific Presentations section under the Investors & Media tab of Onconova’s website.

On December 5, 2016 Merck (NYSE:MRK), known as MSD outside the United States and Canada, reported updated findings evaluating KEYTRUDA (pembrolizumab), the company’s anti-PD-1 therapy, in two trials of patients with relapsed or refractory classical Hodgkin lymphoma (cHL) (Press release, Merck & Co, DEC 5, 2016, View Source [SID1234516946]). In the KEYNOTE-087 and KEYNOTE-013 trials, KEYTRUDA demonstrated overall response rates (ORR) of 69.0 percent and 58 percent, respectively. KEYNOTE-013, which had a median follow up of 29 months, showed responses of 12 months or greater in 70 percent of patients who responded to therapy. These findings will be presented today at the 58th Annual Meeting of the American Society of Hematology (ASH) (Free ASH Whitepaper). Additionally, data from these trials supported the recently announced regulatory filing with the U.S. Food and Drug Administration.

Schedule your 30 min Free 1stOncology Demo!
Discover why more than 1,500 members use 1stOncology™ to excel in:

Early/Late Stage Pipeline Development - Target Scouting - Clinical Biomarkers - Indication Selection & Expansion - BD&L Contacts - Conference Reports - Combinatorial Drug Settings - Companion Diagnostics - Drug Repositioning - First-in-class Analysis - Competitive Analysis - Deals & Licensing

                  Schedule Your 30 min Free Demo!

"As the data mature from these two studies, we continue to be encouraged by the response rates, including complete remission and durable responses, in patients with relapsed or refractory classical Hodgkin lymphoma," said Dr. Roger Dansey, senior vice president and therapeutic area head, oncology late-stage development, Merck Research Laboratories.

The KEYTRUDA clinical development program includes more than 30 tumor types in nearly 400 clinical trials, including more than 200 trials that combine KEYTRUDA with other cancer treatments. For hematologic malignancies specifically, Merck is conducting broad immuno-oncology research assessing the role of monotherapy and combination regimens with KEYTRUDA (pembrolizumab). The hematology program includes nearly 40 ongoing studies – including company sponsored, investigator sponsored and collaborative studies; several of these are registration-enabling trials.

"When patients with classical Hodgkin lymphoma do not respond to standard of care chemotherapy or autologous stem cell transplantation, the cancer is difficult to successfully treat. For these patients, who are often in their 20s and 30s, the need to identify new treatment options is urgent," said Dr. Craig Moskowitz, clinical director, division of hematologic oncology, Memorial Sloan Kettering Cancer Center. "These data are promising and show that pembrolizumab may provide meaningful clinical benefit to patients with this disease."

Results from KEYNOTE-087

Results from the KEYNOTE-087 trial will be presented in an oral presentation by Dr. Moskowitz at 5 p.m. PST (Location: San Diego Convention Center, Room 6B) (Abstract #1107).

KEYNOTE-087 is a multicenter, open-label, multi-cohort, activity-estimating phase 2 trial evaluating KEYTRUDA (200 mg fixed dose every three weeks) monotherapy in patients with relapsed or refractory cHL across three cohorts. The primary endpoints include overall safety, tolerability, and ORR (per blinded independent central review, BICR); secondary endpoints include ORR (per investigator review), duration of response (DOR), progression-free survival (PFS) and overall survival (OS). The patient cohorts are intended to assess the outcome measures in: patients whose disease progressed following an autologous stem cell transplantation and subsequent treatment with brentuximab vedotin, an antibody drug conjugate (Cohort 1); patients who failed salvage chemotherapy and were ineligible for a transplant and whose disease progressed following treatment with brentuximab vedotin (Cohort 2); and patients whose disease progressed after transplant and who did not receive brentuximab vedotin after transplant (Cohort 3).

Across all 210 enrolled patients, the ORR was 69.0 percent (n=145; 95% CI, 62.3-75.2) by BICR, and the complete remission rate was 22.4 percent (n=47; 95% CI, 16.9-28.6). Across all cohorts, 93 percent of patients experienced a decrease in tumor burden (n=192).

By cohort, the data showed:

In Cohort 1, (n=69), ORR was 73.9 percent (n=51; 95% CI, 61.9-83.7) – with complete remissions in 21.7 percent (n=15; 95% CI, 12.7-33.3) and partial remissions in 52.2 percent (n=36; 95% CI, 39.8-64.4) of patients. An additional 15.9 percent of patients had stable disease (n=11; 95% CI, 8.2-26.7) and 7.2 percent of patients had progressive disease (n=5; 95% CI, 2.4-16.1). Additionally, 82.2 percent of responding patients had a response of six months or greater.
In Cohort 2 (n=81), ORR was 64.2 percent (n=52; 95% CI, 52.8-74.6) – with complete remissions in 24.7 percent (n=20; 95% CI, 15.8-35.5) and partial remissions in 39.5 percent (n=32; 95% CI, 28.8-51.0) of patients. An additional 12.3 percent of patients had stable disease (n=10; 95% CI, 6.1-21.5) and 21.0 percent of patients had progressive disease (n=17; 95% CI, 12.7-31.5). Additionally, 70 percent of responding patients had a response of six months or greater.
In Cohort 3 (n=60), ORR was 70.0 percent (n=42; 95% CI, 56.8-81.2) – with complete remissions in 20.0 percent (n=12; 95% CI, 10.8-32.3) and partial remissions in 50.0 percent (n=30; 95% CI, 36.8-63.2) of patients. An additional 16.7 percent of patients had stable disease (n=10; 95% CI, 8.3-28.5) and 13.3 percent of patients had progressive disease (n=8; 95% CI, 5.9-24.6). Additionally, 75.6 percent of responding patients had a response of six months or greater.
Results also included an analysis of patients with primary refractory disease (n=73), defined as failure to achieve complete or partial response to first-line treatment. In this patient population, the ORR (per BICR) was 79.5 percent (n=58; 95% CI, 68.4-88.0). Additionally, an ORR of 67.8 percent (95% CI, 59.6-75.3) was reported in patients who relapsed after three or more lines of prior therapy (n=99/146).

The safety profile of KEYTRUDA (pembrolizumab) was consistent with that observed in previously reported studies. The most common treatment-related adverse events were hypothyroidism (12.4%), pyrexia (10.5%), fatigue (9.0%), rash (7.6%), diarrhea (7.1%), headache (6.2%), nausea (5.7%), cough (5.7%) and neutropenia (5.2%). The most common grade 3 or 4 treatment-related adverse events were neutropenia (2.4%), diarrhea (1.0%) and dyspnea (1.0%). Immune-mediated adverse events included pneumonitis (2.9%), hyperthyroidism (2.9%), colitis (1.0%) and myositis (1.0%). There were nine discontinuations because of treatment-related adverse events and no treatment-related deaths.

Results from KEYNOTE-013

Results from the KEYNOTE-013 trial will be presented in an oral presentation by Dr. Philippe Armand, medical oncologist, Dana-Farber Cancer Institute at 5:15 p.m. PST (Location: San Diego Convention Center, Room 6B) (Abstract #1108).

KEYNOTE-013 is an ongoing, multicenter, non-randomized, phase 1b trial of approximately 200 patients evaluating the safety, tolerability, and efficacy of KEYTRUDA (pembrolizumab) monotherapy in patients with blood cancers, including myelodysplastic syndromes, multiple myeloma, classical Hodgkin lymphoma, mediastinal large B cell lymphoma and certain other non-Hodgkin’s lymphoma (or lymphomata). The primary endpoints of the study include overall safety, tolerability, and complete remission rate (as measured by International Harmonization Project Response Criteria); secondary endpoints include ORR, DOR, PFS, and OS.

Data from a cohort of the study evaluated KEYTRUDA monotherapy at 10 mg/kg every two weeks in patients with relapsed or refractory cHL who had progressed on or after treatment with brentuximab vedotin after failure of autologous stem cell transplant, or who were transplant-ineligible. Response was assessed at week 12 and every 8 weeks thereafter according to the International Harmonization Project 2007 criteria.

Across all 31 patients enrolled in the KEYNOTE-013 classical Hodgkin lymphoma cohort, the ORR was 58 percent (n=18; 95% CI, 39-76) by BICR, and the complete remission rate was 19 percent (n=6; 95% CI, 8-38). Thirty-nine percent of patients achieved partial remission (n=12; 95% CI, 22-58) and 23 percent had stable disease (n=7; 95% CI, 10-41). The median duration of response was not yet reached (range 0.0+ to 26.1+ months) and 70 percent of responding patients had a response of 12 months or greater. The median duration of follow-up was 29 months.

Measured by BICR, median PFS was 11.4 months (4.9-27.8). The six-month PFS rate was 66 percent and the 12-month rate was 48 percent. Median OS was not reached. Six-month and 12-month OS rates were 100 percent and 87 percent, respectively.

The safety profile of KEYTRUDA was consistent with that observed in previously reported studies. The most common treatment-related adverse events were diarrhea (19%), hypothyroidism (13%), pneumonitis (13%), nausea (13%), fatigue (10%) and dyspnea (10%). The most common grade 3 or 4 treatment-related adverse events were colitis (3%), axillary pain (3%), AST increased (3%), joint swelling (3%), nephrotic syndrome back pain (3%) and dyspnea (3%). Adverse events leading to discontinuation were nephrotic syndrome (grade 3), interstitial lung disease (grade 2) and pneumonitis (grade 2). There were no treatment-related deaths.

About Hodgkin Lymphoma

Hodgkin lymphoma is a type of lymphoma that develops in the white blood cells, called lymphocytes, which are part of the immune system. Hodgkin lymphoma can start almost anywhere – most often in lymph nodes in the upper part of the body, with the most common sites being in the chest, neck or under the arms. In 2016, it is estimated that more than 8,500 people will be diagnosed with Hodgkin lymphoma in the U.S.; cHL accounts for about 95 percent of all cases of Hodgkin lymphoma in developed countries.

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

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 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.