This Day On The Street
Continue to site
This account is pending registration confirmation. Please click on the link within the confirmation email previously sent you to complete registration.
Need a new registration confirmation email? Click here

Alnylam Announces United States Patent And Trademark Office (USPTO) Issues Patent Covering RNAi Therapeutics For The Treatment Of Hepatitis B Virus (HBV) Infection

Alnylam Pharmaceuticals, Inc. (Nasdaq:ALNY), a leading RNAi therapeutics company, announced today that the United States Patent and Trademark Office (USPTO) has issued a new patent (U.S. patent no. 8,618,277, or “’277 patent”) in the company’s McSwiggen patent estate. The McSwiggen patent estate broadly describes chemical modifications of RNAi therapeutics needed to achieve “drug-like” properties in siRNA, the molecules that mediate RNAi. Specifically, the ’277 patent includes claims that the company believes are critical for the development of RNAi therapeutics for the treatment of hepatitis B virus (HBV) infection. This patent is held exclusively by Alnylam and is not licensed to any third parties. The McSwiggen patent estate comprises a core component of Alnylam’s overall intellectual property (IP) estate for the advancement of RNAi therapeutics, and was recently obtained through the company’s acquisition of Sirna Therapeutics from Merck.

“We are pleased with the USPTO’s decision to issue the ’277 patent from our McSwiggen patent family, a key component of the IP estate we recently obtained through our acquisition of Sirna Therapeutics from Merck. Our ’277 patent has broad, sequence-independent claims on chemically modified siRNAs which we believe are critical for the development and commercialization of RNAi therapeutics for the treatment of HBV infection,” said Laurence Reid, Ph.D., Senior Vice President and Chief Business Officer of Alnylam. “Our IP estate remains a cornerstone in our efforts to advance RNAi therapeutics to patients in need. In the case of the ’277 patent, we intend to maximize the value of this newly issued IP solely through the advancement of ALN-HBV – our GalNAc-conjugated siRNA targeting the HBV genome for the treatment of HBV infection – where we expect to select our Development Candidate by this year’s end and to file an investigational new drug application at or around year-end 2015.”

The McSwiggen patent family includes 23 granted patents around the world, including patents in the U.S. 1 and the EU 2, and generally describes chemical modifications of siRNA. The ’277 patent includes broad, sequence-independent issued claims on compositions of chemically modified siRNA targeting HBV, including:
  • siRNA that mediates RNAi against a hepatitis B virus target mRNA wherein each strand is between 18 to 24 nucleotides; and
  • sense and antisense strand each comprising 10 or more 2’-deoxy, 2-O-Me, 2’-F or universal base modified nucleotides and 10 or more pyrimidines of the sense and/or antisense strand are 2’-deoxy, 2-O-Me, 2’-F.

Such chemical modifications of siRNA are generally required to achieve in vivo potency and durability for RNAi therapeutics. Additional HBV-directed claims for the McSwiggen patent family are pending in filed patent applications.

Granted claims of the ’277 patent, as well as other granted Alnylam owned or licensed patents, are provided on the company’s website, and in aggregate broadly cover siRNA and their use in a wide range of lengths from 15 to 49 nucleotides, and chemical modifications with naturally or non-naturally occurring nucleotides, including, for example acyclic nucleotides such as those termed “unlocked nucleobase analogs.” In addition, Alnylam’s owned or licensed patents broadly cover delivery of RNAi therapeutics, including those that employ GalNAc-siRNA conjugate technology. Finally, Alnylam’s IP estate also includes patents that broadly cover siRNA toward a wide range of disease targets.

About RNAi

RNAi (RNA interference) is a revolution in biology, representing a breakthrough in understanding how genes are turned on and off in cells, and a completely new approach to drug discovery and development. Its discovery has been heralded as “a major scientific breakthrough that happens once every decade or so,” and represents one of the most promising and rapidly advancing frontiers in biology and drug discovery today which was awarded the 2006 Nobel Prize for Physiology or Medicine. RNAi is a natural process of gene silencing that occurs in organisms ranging from plants to mammals. By harnessing the natural biological process of RNAi occurring in our cells, the creation of a major new class of medicines, known as RNAi therapeutics, is on the horizon. Small interfering RNA (siRNA), the molecules that mediate RNAi and comprise Alnylam’s RNAi therapeutic platform, target the cause of diseases by potently silencing specific mRNAs, thereby preventing disease-causing proteins from being made. RNAi therapeutics have the potential to treat disease and help patients in a fundamentally new way.

1 of 3

Check Out Our Best Services for Investors

Action Alerts PLUS

Portfolio Manager Jim Cramer and Director of Research Jack Mohr reveal their investment tactics while giving advanced notice before every trade.

Product Features:
  • $2.5+ million portfolio
  • Large-cap and dividend focus
  • Intraday trade alerts from Cramer
Quant Ratings

Access the tool that DOMINATES the Russell 2000 and the S&P 500.

Product Features:
  • Buy, hold, or sell recommendations for over 4,300 stocks
  • Unlimited research reports on your favorite stocks
  • A custom stock screener
Stocks Under $10

David Peltier uncovers low dollar stocks with serious upside potential that are flying under Wall Street's radar.

Product Features:
  • Model portfolio
  • Stocks trading below $10
  • Intraday trade alerts
14-Days Free
Only $9.95
14-Days Free
Dividend Stock Advisor

David Peltier identifies the best of breed dividend stocks that will pay a reliable AND significant income stream.

Product Features:
  • Diversified model portfolio of dividend stocks
  • Updates with exact steps to take - BUY, HOLD, SELL
Trifecta Stocks

Every recommendation goes through 3 layers of intense scrutiny—quantitative, fundamental and technical analysis—to maximize profit potential and minimize risk.

Product Features:
  • Model Portfolio
  • Intra Day Trade alerts
  • Access to Quant Ratings
Real Money

More than 30 investing pros with skin in the game give you actionable insight and investment ideas.

Product Features:
  • Access to Jim Cramer's daily blog
  • Intraday commentary and news
  • Real-time trading forums
Only $49.95
14-Days Free
14-Days Free


Chart of I:DJI
DOW 16,911.95 +121.76 0.73%
S&P 500 1,992.69 +12.77 0.64%
NASDAQ 4,783.1480 +34.7870 0.73%

Free Reports

Top Rated Stocks Top Rated Funds Top Rated ETFs