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The Medicines Company and Alnylam Pharmaceuticals Report Positive Final Results from ORION-1 Phase II Study of Inclisiran
March 17, 2017 12:20 p.m. ET
--Inclisiran demonstrated significant and sustained reductions in LDL-C and high standards of safety and tolerability--

--Optimal starting dose regimen (300 mg injection administered on Day-1 and Day-90) lowered LDL-C by average of 52.6% (64 mg/dL) and up to 81% (122 mg/dL) at Day-180, and by time-adjusted mean of >50% (63 mg/dL) for the six-month period from Day-90 through Day-270; every patient displayed significant response and mean LDL-C reductions over this time period were practically constant--

--Robust ORION-1 data reaffirm inclisiran's potential to address unmet needs with highly-differentiated, infrequent, low-volume dosing regimen of two or three injections per year--

--No material safety issues on inclisiran in ORION-1; overall incidence of adverse events for inclisiran was similar to placebo--

--The Company is actively preparing to advance inclisiran into comprehensive, global Phase III development -- initially focused on United States and Europe--

--ORION-1 study presented today in Late-Breaking Clinical Trials session at American College of Cardiology's 66(th) Annual Scientific Session and published in The New England Journal of Medicine--

--The Company to host conference call at 4:30 p.m., Eastern Time, today--

PARSIPPANY, N.J. & CAMBRIDGE, Mass.--(BUSINESS WIRE)--March 17, 2017--
The Medicines Company (NASDAQ: MDCO) and Alnylam Pharmaceuticals, Inc. (NASDAQ: ALNY) today announced positive final results from the ORION-1 Phase II study of inclisiran, an investigational, first-in-class PCSK9 synthesis inhibitor being developed for the treatment of hypercholesterolemia. The results are being presented today in the "Late-Breaking Clinical Trials - Featured Clinical Research 1" session at the American College of Cardiology's 66(th) Annual Scientific Session, ACC.17, and have been published in the March 17, 2017 online issue of The New England Journal of Medicine.

This Smart News Release features multimedia. View the full release here: http://www.businesswire.com/news/home/20170317005437/en/

The detailed data from ORION-1 showed that inclisiran delivered significant and sustained reductions of LDL-C and high standards of safety and tolerability. Remarkably, every patient who received the two dose starting regimen displayed a significant response and the mean LDL-C reductions over time were practically constant. Inclisiran was well tolerated and no material safety issue was observed, including no investigational drug-related elevation of liver enzymes and no neuropathy, change in renal function, thrombocytopenia, or anti-drug antibodies.

"The groundbreaking results from ORION-1 are compelling and affirm inclisiran's unique and highly-differentiated attributes, and its game-changing potential to address the unmet needs of millions of at-risk, often non-adherent, patients worldwide who continue to struggle with high cholesterol given the limitations of available therapies," said Clive Meanwell, M.D., Ph.D., Chief Executive Officer of The Medicines Company. "We are singularly focused on thoughtfully and aggressively advancing inclisiran into Phase III development, including the initiation of ORION-4, which we expect to include cardiovascular outcomes in high-risk primary and secondary prevention patients with an average baseline LDL-C of approximately 130 mg/dL."


John J.P. Kastelein, M.D., Ph.D., Professor of Medicine and Chairman of the Department of Vascular Medicine at the Academic Medical Center of the University of Amsterdam, continued, "We are pleased to see the complete results from this comprehensive 497 patient Phase II study. Inclisiran's universal and practically constant effect is unprecedented in my experience of over 30 years of dyslipidemia clinical trials. The unique dosing regimen virtually eliminates variability in LDL-C levels over time and inclisiran may, therefore, solve one of the most vexing challenges of cardiovascular medicine -- namely, how to make sure everyone responds to treatment."

David Kallend, MBBS, Vice President and Global Medical Director of The Medicines Company, added, "The results from ORION-1 have the potential to significantly advance the treatment paradigm with robust and durable knockdown of LDL-C and a convincing and highly-reassuring safety and tolerability profile. The data support the selection of 300 mg as the optimal dose, as well as our conclusion that a two dose starting regimen, followed by dosing two times per year, constitutes a highly-differentiated and competitive treatment for patients with hypercholesterolemia. We believe the strength of the data will enable a quick and efficient transition to Phase III development."

John Maraganore, Ph.D., Chief Executive Officer of Alnylam, added, "We are delighted with these final data from the ORION-1 study and impressed by the progress made by investigators and our partner, The Medicines Company. Importantly, as the largest study yet to be performed for an RNAi therapeutic, we believe the results provide compelling support for the positive safety and tolerability profile of our investigational medicines."

In ORION-1, the mean baseline LDL-C was approximately 130 mg/dL among 497 randomized and treated patients. The optimal starting dose regimen (300 mg injection administered on Day-1 and Day-90) achieved a mean LDL-C reduction of 52.6% and up to 81% at Day-180, and a time-adjusted mean of >50% for the six month period from Day-90 through Day-270. For all dose groups, at all time points, differences in the primary (LDL-C) and secondary (PCSK9) endpoints between inclisiran and placebo were statistically significant (p <0.0001).

The overall incidence of treatment emergent adverse events was 76% in both patients randomized to placebo and patients randomized to inclisiran, with no significant difference between inclisiran doses. Injection site reactions associated with inclisiran were infrequent (observed in 6.5% of patients given the two dose starting regimen and 3.8% of patients given the one dose starting regimen), mild or moderate, and transient.

The results from the Phase II study of inclisiran, published in today's online issue of The New England Journal of Medicine, can be found here.
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