IMFINZI™ (durvalumab) significantly reduces the risk of disease worsening or death in the Phase III PACIFIC trial for Stage III unresectable lung cancer

Durvalumab met a primary endpoint of statistically-significant and clinically-meaningful progression-free survival (PFS) in ‘all-comer’ patients with locally-advanced, unresectable (Stage III) non-small cell lung cancer in a planned interim analysis

Durvalumab is the first immuno-oncology medicine to show superior PFS in this setting

Plans for regulatory submission under active discussion with authorities

AstraZeneca and MedImmune, its global biologics research and development arm, today announced positive results for the investigational Phase III PACIFIC trial, a randomized, double-blinded, placebo-controlled multi-center trial of durvalumab as sequential treatment in patients with locally-advanced, unresectable (Stage III) non-small cell lung cancer (NSCLC) who had not progressed following standard platinum-based chemotherapy concurrent with radiation therapy.

A planned interim analysis conducted by an Independent Data Monitoring Committee (IDMC) concluded that the trial has already met a primary endpoint by showing statistically-significant and clinically-meaningful PFS, as assessed by blinded independent central review, in patients receiving durvalumab compared to placebo. The results also demonstrate a favorable benefit/risk profile. The trial will also evaluate overall survival (OS), the other primary endpoint, which will be assessed in due course as specified by the protocol. AstraZeneca plans to submit the initial results from the PACIFIC trial for presentation at a forthcoming medical meeting.

Sean Bohen, Executive Vice President, Global Medicines Development and Chief Medical Officer at AstraZeneca, said: “These are highly encouraging results for patients with locally-advanced lung cancer for whom surgery is not an option. We look forward to working with regulatory authorities around the world to bring durvalumab to lung cancer patients as soon as possible. Alongside this, we continue to explore durvalumab’s full potential as monotherapy as well as in combination with tremelimumab and other medicines in areas of continued unmet need across multiple types of cancer.”

Progression-Free Survival is defined as the time from randomization until the date of objective disease progression (RECIST 1.1) or death (by any cause in the absence of progression).

Stage III lung cancer represents approximately one third of NSCLC incidence and was estimated to affect around 100,000 patients in the G7 countries in 2016a. About half of these patients have tumors that are unresectable. Patients are currently treated with chemotherapy and radiation. The prognosis remains poor and long-term survival rates are low.

AstraZeneca recently received accelerated approval from the US FDA for durvalumab in previously treated patients with advanced bladder cancer. Durvalumab is also being investigated as a first-line treatment for patients with NSCLC as monotherapy in the MYSTIC and PEARL Phase III trials. It is also being investigated in combination with tremelimumab, a checkpoint inhibitor that targets CTLA-4, as part of the MYSTIC, NEPTUNE and POSEIDON Phase III trials.

IMPORTANT SAFETY INFORMATION

There are no contraindications for IMFINZI (durvalumab).

Monitor patients for clinical signs and symptoms of immune-mediated pneumonitis, hepatitis, colitis or diarrhea, endocrinopathies, nephritis, rash or dermatitis, other immune-mediated adverse reactions, and infection. Please refer to the full Prescribing Information for important dose management information specific to adverse reactions.

Immune-Mediated Pneumonitis
In the combined safety database (n=1414), immune-mediated pneumonitis occurred in 32 patients (2.3%), including 1 fatal case (0.1%) and 6 Grade 3–4 cases (0.4%). In Study 1 (n=182), 1 patient (0.5%) died from immune-mediated pneumonitis. Monitor patients for signs and symptoms of pneumonitis and evaluate with radiographic imaging when suspected. Administer corticosteroids for ≥Grade 2 pneumonitis. Withhold IMFINZI for Grade 2 pneumonitis; permanently discontinue for Grade 3–4 pneumonitis.

Immune-Mediated Hepatitis
In the combined safety database (n=1414), immune-mediated hepatitis occurred in 16 patients (1.1%), including 1 fatal case (<0.1%) and 9 Grade 3 cases (0.6%). Grade 3–4 elevations in ALT occurred in 40/1342 patients (3.0%), AST in 58/1336 patients (4.3%), and total bilirubin in 37/1341 patients (2.8%). In Study 1 (n=182), 1 patient (0.5%) died from immune-mediated hepatitis, and 2 patients (1.1%) experienced immune-mediated hepatitis, including 1 Grade 3 case (0.5%). Monitor patients for abnormal liver tests in each cycle during treatment with IMFINZI. Administer corticosteroids and withhold IMFINZI for Grade 2–3 ALT or AST >3–5X ULN or <8X ULN or total bilirubin >1.5–3X ULN or <5X ULN. Permanently discontinue IMFINZI in patients with Grade 3 ALT or AST >8X ULN or total bilirubin >5X ULN, or in patients with concurrent ALT or AST >3X ULN and total bilirubin >2X ULN with no other cause.

Immune-Mediated Colitis
In the combined safety database (n=1414), immune-mediated colitis or diarrhea occurred in 18 patients (1.3%), including 1 Grade 4 case (<0.1%) and 4 Grade 3 cases (0.3%). In Study 1 (n=182), 23 patients (12.6%) experienced colitis or diarrhea, including 2 Grade 3–4 cases (1.1%). Monitor patients for signs and symptoms of colitis or diarrhea. Administer corticosteroids for ≥Grade 2 colitis or diarrhea. Withhold IMFINZI for Grade 2 colitis or diarrhea; permanently discontinue for Grade 3–4 colitis or diarrhea.

Immune-Mediated Endocrinopathies

  • Immune-mediated thyroid disorders, adrenal insufficiency, type 1 diabetes mellitus and hypophysitis/hypopituitarism have occurred with IMFINZI. Monitor patients for clinical signs and symptoms of endocrinopathies. For Grade 2–4 endocrinopathies (except hypothyroidism) withhold dose until clinically stable and offer symptomatic management for hyperthyroidism. For Grade 2–4 hypothyroidism, initiate thyroid hormone replacement as needed
  • Thyroid disorders— In the combined safety database (n=1414), immune-mediated hypothyroidism and hyperthyroidism occurred in 136 patients (9.6%) and 81 patients (5.7%), respectively. Thyroiditis occurred in 10 patients (0.7%), including 1 Grade 3 case (<0.1%) in a patient who had a myocardial infarction. In 9 patients with thyroiditis, transient hyperthyroidism preceded hypothyroidism. Treatment with a beta-blocker and/or thioamide was administered for hyperthyroidism in five of these patients. In Study 1 (n=182), Grade 1–2 hypothyroidism or thyroiditis occurred in 10 patients (5.5%). Grade 1–2 hyperthyroidism or thyroiditis leading to hyperthyroidism occurred in 9 patients (4.9%). Monitor patients for abnormal thyroid function tests prior to and periodically during treatment
  • Immune-mediated adrenal insufficiency—In the combined safety database (n=1414), immune-mediated adrenal insufficiency occurred in 13 patients (0.9%), including 2 Grade 3 cases (0.1%). In Study 1 (n=182), Grade 1 adrenal insufficiency occurred in 1 patient (0.5%). Administer corticosteroids and hormone replacement as clinically indicated
  • Type 1 diabetes mellitus—In the combined safety database (n=1414), new onset type 1 diabetes mellitus without an alternative etiology occurred in 1 patient (<0.1%). For type 1 diabetes mellitus, initiate insulin as indicated and withhold IMFINZI until clinically stable
  • Hypophysitis—In the combined safety database (n=1414), hypopituitarism leading to adrenal insufficiency and diabetes insipidus occurred in 1 patient (<0.1%). Administer corticosteroids and hormone replacement as clinically indicated

Other Immune-Mediated Adverse Reactions

  • IMFINZI has caused immune-mediated rash. Other immune-related adverse reactions, including aseptic meningitis, hemolytic anemia, immune thrombocytopenic purpura, myocarditis, myositis, nephritis, and ocular inflammatory toxicity including uveitis and keratitis, have occurred in ≤1.0% of patients treated with IMFINZI
  • Immune-mediated rash or dermatitis—In the combined safety database (n=1414), immune-mediated rash or dermatitis occurred in 220 patients (15.6%) and 4 patients (0.3%) developed vitiligo. In Study 1 (n=182), 20 patients (11.0%) developed rash, including 1 Grade 3 case (0.5%). Patients should be monitored for signs and symptoms of rash or dermatitis. Administer corticosteroids if indicated. Withhold IMFINZI for Grade 3 rash or dermatitis or Grade 2 rash or dermatitis lasting >1 week. Permanently discontinue IMFINZI in patients with Grade 4 rash or dermatitis
  • Immune thrombocytopenic purpura—In the combined safety database (n=1414), 1 fatal case (<0.1%) of immune thrombocytopenic purpura occurred. Monitor patients for signs and symptoms of immune thrombocytopenic purpura
  • Nephritis—In the combined safety database (n=1414), immune-mediated nephritis occurred in 3 patients (0.2%), including 2 Grade 3 cases (0.1%). Monitor patients for abnormal renal function tests prior to and during each cycle of IMFINZI. Administer corticosteroids for ≥Grade 2 nephritis (creatinine >1.5X ULN). Withhold IMFINZI for Grade 2 nephritis; permanently discontinue for ≥Grade 3 nephritis (creatinine >3X ULN)

Infection
Severe infections, including sepsis, necrotizing fasciitis, and osteomyelitis, occurred in patients receiving IMFINZI. In the combined safety database (n=1414), infections occurred in 531 patients (37.6%). In Study 1 (n=182), infections occurred in 54 patients (29.7%). 11 patients (6.0%) experienced Grade 3–4 infection and 5 patients (2.7%) were experiencing infection at the time of death. 8 patients (4.4%) experienced urinary tract infection, the most common ≥Grade 3 infection. Monitor patients for signs and symptoms of infection and treat with anti-infectives for suspected or confirmed infections. Withhold IMFINZI for >Grade 3 infection.

Infusion-Related Reactions
In the combined safety database (n=1414), severe infusion-related reactions occurred in 26 patients (1.8%). In Study 1 (n=182), infusion-related reactions occurred in 3 patients (1.6%). There were 5 Grade 3 (0.4%) and no Grade 4 or 5 reactions. Patients should be monitored for signs and symptoms of infusion-related reactions. Interrupt or slow the rate of infusion for Grade 1–2 infusion-related reactions and permanently discontinue for Grade 3–4 infusion-related reactions.

Embryo-Fetal Toxicity
Based on its mechanism of action and data from animal studies, IMFINZI can cause fetal harm when administered to a pregnant woman. There are no data on the use of IMFINZI in pregnant women. Advise pregnant women of the potential risk to a fetus and advise women of reproductive potential to use effective contraception during treatment and for at least 3 months after the last dose of IMFINZI.

Nursing Mothers
There is no information regarding the presence of IMFINZI in human milk; however, because of the potential for adverse reactions in breastfed infants from IMFINZI, advise a lactating woman not to breastfeed during treatment and for at least 3 months after the last dose.

Most Common Adverse Reactions

  • The most common adverse reactions (≥15%) were fatigue (39%), musculoskeletal pain (24%), constipation (21%), decreased appetite (19%), nausea (16%), peripheral edema (15%), and urinary tract infection (15%). The most common Grade 3 or 4 adverse reactions (≥3%) were fatigue, urinary tract infection, musculoskeletal pain, abdominal pain, dehydration, and general physical health deterioration
  • Adverse reactions leading to discontinuation of IMFINZI occurred in 3.3% of patients. Serious adverse reactions occurred in 46% of patients. The most frequent serious adverse reactions (>2%) were acute kidney injury (4.9%), urinary tract infection (4.4%), musculoskeletal pain (4.4%), liver injury (3.3%), general physical health deterioration (3.3%), sepsis, abdominal pain, and pyrexia/tumor associated fever (2.7% each)

The safety and effectiveness of IMFINZI have not been established in pediatric patients.

Approved Uses
IMFINZI is indicated for the treatment of patients with locally advanced or metastatic urothelial carcinoma who:

  • have disease progression during or following platinum-containing chemotherapy
  • 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.

Please see complete Prescribing Information including Patient Information.

aKantar, other market research based on 2016 patient numbers; Globocan 2012. G7 countries include the US, Japan, Germany, the UK, France, Italy and Canada.

NOTES TO EDITORS

About PACIFIC
The PACIFIC trial is a randomized, double-blinded, placebo-controlled multi-center trial of durvalumab as sequential treatment in unselected patients with locally-advanced, unresectable (Stage III) NSCLC who have not progressed following platinum-based chemotherapy concurrent with radiation therapy.

The trial is being conducted in 235 centers across 26 countries, including the US, Canada, Europe, South and Central America, Japan, Korea, Taiwan, South Africa and Australia. The primary endpoints of the trial are PFS and OS, and secondary endpoints include landmark PFS and OS, objective response rate and duration of response.

About IMFINZI
IMFINZI™ (durvalumab, previously known as MEDI4736) is a human monoclonal antibody directed against PD-L1, which blocks the interaction of PD-L1 with PD-1 and CD80.

Durvalumab is also being tested in the first-line treatment of patients with unresectable and metastatic bladder cancer as a monotherapy and in combination with tremelimumab, a checkpoint inhibitor that targets CTLA-4, as part of the DANUBE Phase III trial, which had the last patient commenced dosing during the first quarter of 2017 (global trial, excluding China). Additional clinical trials are ongoing to investigate durvalumab as monotherapy or in combination with tremelimumab in multiple solid tumors and blood cancers.

About AstraZeneca in NSCLC
Lung cancer is the leading cause of cancer death among both men and women, accounting for about one-third of all cancer deaths and more than breast, prostate and colorectal cancers combined.

AstraZeneca has a comprehensive portfolio of approved and potential new medicines in late-stage clinical development for the treatment of NSCLC across all stages of disease and lines of therapy. We aim to address unmet needs of patients with EGFR-mutated tumors as a genetic driver of disease, which occur in 15-20% of NSCLC patients globally and 30-40% of NSCLC patients in Asia, with our approved medicines Iressa and Tagrisso and on-going FLAURA and ADAURA trials. Our extensive late-stage immuno-oncology program focuses on 75-80% of patients with NSCLC without a known genetic mutation. Our portfolio includes durvalumab, an anti-PDL1 antibody, which is being investigated as monotherapy (ADJUVANT, PACIFIC, MYSTIC, PEARL and ARCTIC trials) and in combination with tremelimumab, anti-CTLA-4 (MYSTIC, NEPTUNE and POSEIDON trials).

AstraZeneca’s Approach to Immuno-Oncology (IO)
Immuno-Oncology (IO) is a therapeutic approach designed to stimulate the body’s immune system to attack tumors. At AstraZeneca, and MedImmune, our biologics research and development arm, our IO portfolio is anchored by immunotherapies that have been designed to overcome anti-tumor immune suppression. We believe that IO-based therapies will offer the potential for life-changing cancer treatments for the vast majority of patients.

We are pursuing a comprehensive clinical trial program that includes durvalumab (anti-PDL1) monotherapy and in combination with tremelimumab (anti-CTLA-4) in multiple tumor types, stages of disease, and lines of therapy, and where relevant using the PD-L1 biomarker as a decision-making tool to define the best potential treatment path for a patient. In addition, the ability to combine our IO portfolio with small targeted molecules from across our oncology pipeline, and with those of our research partners, may provide new treatment options across a broad range of tumors.

About AstraZeneca in Oncology
AstraZeneca has a deep-rooted heritage in Oncology and offers a quickly growing portfolio of new medicines that has the potential to transform patients’ lives and the Company’s future. With at least six new medicines to be launched between 2014 and 2020 and a broad pipeline of small molecules and biologics in development, we are committed to advance New Oncology as one of AstraZeneca’s five Growth Platforms focused on lung, ovarian, breast and blood cancers. In addition to our core capabilities, we actively pursue innovative partnerships and investments that accelerate the delivery of our strategy, as illustrated by our investment in Acerta Pharma in hematology.

By harnessing the power of four scientific platforms - Immuno-Oncology, the genetic drivers of cancer and resistance, DNA Damage Response and Antibody Drug Conjugates - and by championing the development of personalized combinations, AstraZeneca has the vision to redefine cancer treatment and one day eliminate cancer as a cause of death.

About AstraZeneca
AstraZeneca is a global, science-led biopharmaceutical company that focuses on the discovery, development and commercialization of prescription medicines, primarily for the treatment of diseases in three main therapy areas – Oncology, Cardiovascular & Metabolic Diseases and Respiratory. The Company also is selectively active in the areas of autoimmunity, neuroscience and infection. AstraZeneca operates in over 100 countries and its innovative medicines are used by millions of patients worldwide. For more information, please visit www.astrazeneca-us.com and follow us on Twitter @AstraZenecaUS. 

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10606 Last Updated 5/17