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Welcome to Alnylam

Welcome to Alnylam

Alnylam is developing an entirely new class of medicines based on the breakthrough discovery in biology known as RNA interference, or RNAi. Alnylam believes that RNAi therapeutics are a promising approach to silence disease-causing genes, and represent an opportunity to transform the treatment of many diseases.

Alnylam 2020

Alnylam 2020

In January 2015, we launched our “Alnylam 2020” guidance for the advancement and commercialization of RNAi therapeutics as a whole new class of innovative medicines.  Specifically, by the end of 2020, we expect to achieve a company profile with 3 marketed products, 10 RNAi therapeutic clinical programs – including 4 in late stages of development – across 3 Strategic Therapeutic Areas (STArs).  Our 3 STArs include: Genetic Medicines, RNAi therapeutics for the treatment of rare diseases; Cardio-Metabolic Disease, RNAi therapeutics for the treatment of unmet needs in dyslipidemia, hypertension, diabetes, and non-alcoholic steatohepatitis (NASH); and Hepatic Infectious Disease, RNAi therapeutics for the treatment of infectious diseases with liver involvement.  “Alnylam 2020” marks our expected transition from a late-stage clinical development company to a multi-product commercial-stage company with a robust and sustainable development pipeline – a profile that we believe has rarely been achieved in the biopharmaceutical industry.


Pipeline Growth Strategy for RNAi Therapeutics in Three Strategic Therapeutic Areas, or “STArs”

Pipeline Growth Strategy for RNAi Therapeutics in Three Strategic Therapeutic Areas, or “STArs”

In December 2014, we announced a pipeline growth strategy for development and commercialization of RNAi therapeutics across three Strategic Therapeutic Areas (STArs): Genetic Medicines, Cardio-metabolic Disease, and Hepatic Infectious Disease.  The strategy builds on our progress in the advancement of RNAi therapeutics, including our “Enhanced Stabilization Chemistry” (ESC)-GalNAc conjugate technology, as a modular and reproducible platform for discovery of innovative medicines.  The three STArs will remain focused on liver-expressed and genetically validated or pathogen-derived disease targets, with biomarkers for assessment of clinical activity early in Phase 1 trials.  Across our three STArs, we believe that we can address major unmet needs in a wide range of diseases with high-impact, differentiated medicines, and continue to build what we believe to be one of the most robust pipelines in biotech.  By executing on this strategy, we believe we have the potential to make a meaningful difference in the lives of patients, and maximize value for shareholders.




12-Month Clinical Data from Patisiran Phase 2 Open-Label Extension (OLE) Study

12-Month Clinical Data from Patisiran Phase 2 Open-Label Extension (OLE) Study

We presented initial 12-month clinical data from our ongoing Phase 2 open-label extension (OLE) study with patisiran, an investigational RNAi therapeutic in development for the treatment of transthyretin (TTR)-mediated amyloidosis in patients with familial amyloidotic polyneuropathy (FAP). Study results, presented at the 67th Annual Meeting of the American Academy of Neurology (AAN) being held April 18 – 25, showed a mean 2.5 point decrease in modified Neuropathy Impairment Score (mNIS+7) at 12 months in patients who had reached the 12-month endpoint (N=20) at the time of data cutoff. This decrease in neuropathy progression compares favorably to the 13 to 18 point increase in mNIS+7 at 12 months that can be estimated from the literature in untreated FAP patients with similar baseline characteristics.



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Pre-Clinical Results with ALN-AT3 Published in “Nature Medicine”

Pre-Clinical Results with ALN-AT3 Published in “Nature Medicine”

We have published pre-clinical results with ALN-AT3, an investigational RNAi therapeutic targeting antithrombin (AT) for the treatment of hemophilia, in Nature Medicine. The paper documents a broad set of pre-clinical data supporting the clinical advancement of ALN-AT3. Among the many findings reported, subcutaneous administration of ALN-AT3 led to potent, dose-dependent, and durable knockdown of AT in wild-type mice, hemophilia A mice, and non-human primates (NHPs). In addition, ALN-AT3 treatment improved hemostasis in hemophilia mice and normalized thrombin generation in a non-human primate “inhibitor” model of hemophilia A (HA). Furthermore, long-term ALN-AT3 administration – even at highly exaggerated doses – was shown to be well tolerated in hemophilia mice, supporting a wide therapeutic index in the disease setting.



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Results from Retrospective Natural History Study of Patients with Familial Amyloidotic Cardiomyopathy (FAC)

Results from Retrospective Natural History Study of Patients with Familial Amyloidotic Cardiomyopathy (FAC)

We presented results from a retrospective natural history study evaluating disease progression in transthyretin (TTR)-mediated amyloidosis (ATTR amyloidosis) patients with familial amyloidotic cardiomyopathy (FAC). These results were presented at a meeting with members of the Association of Black Cardiologists (ABC) at the American College of Cardiology (ACC) Annual Scientific Session, held March 14 – 16, 2015. Amongst other findings, study results showed a mean decline of 140 meters in 6-minute walk distance (6-MWD) over an 18-month period in FAC patients with mild-to-moderate heart failure. Also at the ACC meeting, we presented complete results from our Phase 2 clinical trial with revusiran, an investigational RNAi therapeutic for the treatment of FAC. Consistent with preliminary results presented last year, revusiran achieved an up to 98.2% knockdown of serum TTR – the disease-causing protein – and was found to be generally well tolerated.




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Initial Evidence for Potential Correction of the Hemophilia Phenotype in Phase 1 Study of ALN-AT3

Initial Evidence for Potential Correction of the Hemophilia Phenotype in Phase 1 Study of ALN-AT3

We announced updated clinical results from the ongoing Phase 1 study of ALN-AT3, a subcutaneously administered, investigational RNAi therapeutic targeting antithrombin (AT) for the treatment of hemophilia and rare bleeding disorders (RBD).  New results were presented at the 2015 Goring Coagulation Conference in London.  Specifically, data were presented from the study’s second dose cohort in hemophilia subjects (n=3), where subcutaneous administration of ALN-AT3 resulted in an up to 70% knockdown of AT.  New results provide initial evidence for potential correction of the hemophilia phenotype associated with ALN-AT3 administration and AT knockdown.  Specifically, ALN-AT3 administration resulted in an increase in thrombin generation of up to 334% and a marked improvement in whole blood clotting.  In addition, the most advanced severe hemophilia A subject in the cohort has remained bleed free for 47 days without replacement factor prophylaxis as of the January 6, 2015 data cut-off date. In addition, ALN-AT3 administration remains generally well tolerated.



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