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Ariad Pharmaceuticals, Inc. (ARIA) Discontinues Phase 3 Study of Cancer Drug Iclusig; Shares Decimated, Falls -40.67% at Market Close (October 18, 2013)
10/18/2013 8:07:51 AM
ARIAD Announces Discontinuation of the Phase 3 Epic Trial of Iclusig in Patients with Newly Diagnosed Chronic Myeloid Leukemia
CAMBRIDGE, Mass.--(BUSINESS WIRE)--Oct. 18, 2013-- ARIAD Pharmaceuticals, Inc. (NASDAQ:ARIA) today announced that it is discontinuing the Phase 3 EPIC (Evaluation of Ponatinib versus Imatinib in Chronic Myeloid Leukemia) trial of Iclusig® (ponatinib) in patients with newly diagnosed chronic myeloid leukemia. ARIAD and the U.S. Food and Drug Administration mutually agreed that the trial should be terminated because arterial thrombotic events were observed in patients treated with Iclusig. This decision was made in the interest of patient safety based on a recent assessment of data in the clinical trial.
"Our decision to stop the EPIC trial at this time is based on our current evaluation of the safety data in the trial since it was placed on partial clinical hold last week,"stated Timothy P. Clackson, Ph.D., president of research and development and chief scientific officer at ARIAD. "We believe that this is in the best interests of patient safety and the overall development of Iclusig."
Patients in the EPIC trial are being removed from treatment and will be transferred to the care of their physician. ARIAD announced in early September that fifty percent of patients, or approximately 264 patients, had been enrolled in the EPIC trial by that time. Final enrollment is 307 patients.
The EPIC trial was a randomized, two-arm, multicenter trial that sought to compare the efficacy of ponatinib with that of imatinib in adult patients with newly diagnosed CML in the chronic phase. The trial was being conducted at approximately 150 investigational sites in more than 20 countries. Patients in the trial had to be at least 18 years of age and diagnosed with CML within six months prior to enrollment. Approximately 500 patients were to be randomized 1:1 to the standard dose of ponatinib (45 mg given orally once daily) or imatinib (400 mg given orally once daily). Increasing the imatinib dose to 600 mg or 800 mg per day was permitted. The primary endpoint of the trial was major molecular response at 12 months of treatment.
Iclusig is commercially available in the U.S. and EU for patients with resistant or intolerant CML and Philadelphia-chromosome positive acute lymphoblastic leukemia. ARIAD continues to work with health authorities to make appropriate changes to the Iclusig product labeling to reflect the recently announced safety findings from the pivotal PACE trial that was the basis of its marketing approvals.
Investor and analyst briefing and webcast
ARIAD management will host a conference call and webcast to discuss these actions today, October 18 at 8:30 a.m. ET. The live webcast can be accessed by visiting the investor relations section of the Company's website at http://investor.ariad.com. The call can be accessed by dialing 866-318-8620 (U.S.) or +1 617-399-5139 (international) and providing the participant code 13718093. A replay of the call will be available on the ARIAD website approximately two hours after completion of the call and will be archived for three weeks.
Information for patients and physicians
For more information about the changes in Iclusig clinical trials, patients and physicians should visit www.clinicaltrials.gov, call the ARIAD U.S. toll-free number (855) 552-7423, the EU toll-free number 800 00027423, or the international number +1 (617)-503-7423. Patients and doctors may e-mail inquiries to firstname.lastname@example.org.
About CML and Ph+ ALL
CML is characterized by an excessive and unregulated production of white blood cells by the bone marrow due to a genetic abnormality that produces the BCR-ABL protein. After a chronic phase of production of too many white blood cells, CML typically evolves to the more aggressive phases referred to as accelerated phase or blast crisis. Ph+ ALL is a subtype of acute lymphoblastic leukemia that carries the Ph+ chromosome that produces BCR-ABL. It has a more aggressive course than CML and is often treated with a combination of chemotherapy and tyrosine kinase inhibitors. The BCR-ABL protein is expressed in both of these diseases.
About Iclusig® (ponatinib)
Iclusig is a kinase inhibitor. The primary target for Iclusig is BCR-ABL, an abnormal tyrosine kinase that is expressed in chronic myeloid leukemia (CML) and Philadelphia-chromosome positive acute lymphoblastic leukemia (Ph+ ALL). Iclusig was designed using ARIAD's computational and structure-based drug design platform specifically to inhibit the activity of BCR-ABL. Iclusig targets not only native BCR-ABL but also its isoforms that carry mutations that confer resistance to treatment, including the T315I mutation, a common mutation which has been associated with resistance to other approved TKIs.
Indication, Usage and Dosing
Iclusig is indicated for the treatment of adult patients with chronic phase, accelerated phase, or blast phase chronic myeloid leukemia (CML) that is resistant or intolerant to prior tyrosine kinase inhibitor (TKI) therapy or Philadelphia chromosome-positive acute lymphoblastic leukemia (Ph+ ALL) that is resistant or intolerant to prior TKI therapy.
This indication is based upon response rate. There are no trials verifying an improvement in disease-related symptoms or increased survival with Iclusig.
The recommended dose of Iclusig is a 45 mg tablet taken once-daily with or without food.
Important Safety Information
Arterial Thrombosis: Cardiovascular, cerebrovascular, and peripheral vascular thrombosis, including fatal myocardial infarction and stroke have occurred in Iclusig-treated patients. In clinical trials, serious arterial thrombosis occurred in 8% of Iclusig-treated patients. Interrupt and consider discontinuation of Iclusig in patients who develop arterial thrombotic events.
Hepatotoxicity: Hepatotoxicity, liver failure and death have occurred in Iclusig-treated patients. Monitor hepatic function prior to and during treatment. Interrupt and then reduce or discontinue Iclusig for hepatotoxicity.
Warnings and Precautions
Congestive Heart Failure: Twenty patients treated with Iclusig (4%) experienced serious congestive heart failure (CHF) or left ventricular dysfunction (LVD), with 4 fatalities. Thirty-three patients treated with Iclusig (7%) experienced any grade of CHF or LVD. Monitor patients for signs or symptoms consistent with CHF and treat as clinically indicated, including interruption of Iclusig. Consider discontinuation of Iclusig in patients who develop serious CHF.
Hypertension: Eight patients treated with Iclusig (2%) experienced treatment-emergent symptomatic hypertension as a serious adverse reaction, including hypertensive crisis. Treatment-emergent hypertension (defined as systolic BP=140 mm Hg or diastolic BP=90 mm Hg on at least one occasion) occurred in 67% of patients (300/449). Monitor and manage blood pressure elevations.
Pancreatitis: Clinical pancreatitis occurred in 6% of patients (5% Grade 3) treated with Iclusig. The incidence of treatment emergent lipase elevation was 41%. Check serum lipase every 2 weeks for the first 2 months and then monthly thereafter or as clinically indicated. Dose interruption or reduction may be required. In cases where lipase elevations are accompanied by abdominal symptoms, interrupt treatment with Iclusig and evaluate patients for pancreatitis.
Hemorrhage: Serious bleeding events occurred in 5% (22/449) of patients treated with Iclusig, including fatalities. Hemorrhagic events occurred in 24% of patients. The incidence of serious bleeding events was higher in patients with AP-CML, BP-CML, and Ph+ ALL. Most events occurred in patients with grade 4 thrombocytopenia. Interrupt Iclusig for serious or severe hemorrhage.
Fluid Retention: Serious fluid retention events occurred in 3% of patients treated with Iclusig. One instance of brain edema was fatal. Monitor patients for fluid retention and manage patients as clinically indicated. Interrupt, reduce, or discontinue Iclusig as clinically indicated.
Cardiac Arrhythmias: Symptomatic bradyarrhythmias that led to a requirement for pacemaker implantation occurred in 3 (1%) Iclusig-treated patients. Advise patients to report signs and symptoms suggestive of slow heart rate (fainting, dizziness, or chest pain). Supraventricular tachyarrhythmias occurred in 5% of Iclusig-treated patients. Atrial fibrillation was the most common supraventricular tachyarrhythmia and occurred in 20 patients. For 13 patients, the event led to hospitalization. Advise patients to report signs and symptoms of rapid heart rate (palpitations, dizziness).
Myelosuppression: Severe (Grade 3 or 4) myelosuppression occurred in 48% (215/449) of patients treated with Iclusig. The incidence of these events was greater in patients with AP-CML, BP-CML and Ph+ ALL than in patients with CP-CML. Obtain complete blood counts every 2 weeks for the first 3 months and then monthly or as clinically indicated, and adjust the dose as recommended.
Tumor Lysis Syndrome: Two patients (<1%) with advanced disease (AP-CML, BP-CML, or Ph+ ALL) treated with Iclusig developed serious tumor lysis syndrome. Hyperuricemia occurred in 7%(30/449) of patients overall; the majority had CP-CML (19 patients). Ensure adequate hydration and treat high uric acid levels prior to initiating therapy with Iclusig.
Compromised Wound Healing and Gastrointestinal Perforation: Since Iclusig may compromise wound healing, interrupt Iclusig for at least 1 week prior to major surgery. Serious gastrointestinal perforation (fistula) occurred in one patient 38 days post-cholecystectomy.
Embryo-Fetal Toxicity: Iclusig can cause fetal harm. If Iclusig is used during pregnancy, or if the patient becomes pregnant while taking Iclusig, the patient should be apprised of the potential hazard to the fetus. Advise women to avoid pregnancy while taking Iclusig.
The most common non-hematologic adverse reactions (=20%) were hypertension, rash, abdominal pain, fatigue, headache, dry skin, constipation, arthralgia, nausea, and pyrexia. Hematologic adverse reactions included thrombocytopenia, anemia, neutropenia, lymphopenia, and leukopenia. Please see the full U.S. Prescribing Information for Iclusig, including the Boxed Warning.
ARIAD Pharmaceuticals, Inc., headquartered in Cambridge, Massachusetts and Lausanne, Switzerland, is an integrated global oncology company focused on transforming the lives of cancer patients with breakthrough medicines. ARIAD is working on new medicines to advance the treatment of various forms of chronic and acute leukemia, lung cancer and other difficult-to-treat cancers. ARIAD utilizes computational and structural approaches to design small-molecule drugs that overcome resistance to existing cancer medicines. For additional information, visit http://www.ariad.com or follow ARIAD on Twitter (@ARIADPharm).
This press release contains "forward-looking statements" including, but not limited to, statements about discontinuation of the Phase 3 EPIC clinical trial. Forward-looking statements are based on management's expectations and are subject to certain factors, risks and uncertainties that may cause actual results, outcome of events, timing and performance to differ materially from those expressed or implied by such statements. These risks and uncertainties and other factors are detailed under the heading "Risk Factors" in Part I, Item 1A of our Annual Report on Form 10-K for the year ended December 31, 2012 and any updates to those risk factors contained in our subsequent periodic and current reports filed with the U.S. Securities and Exchange Commission. The information contained in this press release is believed to be current as of the date of original issue. We do not intend to update any of the forward-looking statements after the date of this document to conform these statements to actual results or to changes in our expectations, except as required by law.
Source: ARIAD Pharmaceuticals, Inc.
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