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

Halozyme Therapeutics Management Discusses Q2 2012 Results - Earnings Call Transcript

What was different here is the relative levels of antibodies or titers. Levels of these antibodies in both the insulin and Herceptin studies were within the same levels posttreatment as seen in the pretreatment populations, or in other words, no signals of treatment boosting.

In the HyQ registration study, we observed antibody levels that were orders of magnitude higher than have previously been observed in any other repeat dose clinical trial, which is suggestive of some form of immune response with this combination. So it is possible that there is some form of interaction between these plasma derivatives that's leading to these high antibody levels, but further investigation is required.

However, it's still important to note that the antibodies have not been associated with any adverse events, and again, none of the samples were neutralizing against the rHuPH20 enzyme.

The Complete Response Letter for HyQ has requested additional preclinical data to support the BLA application and primarily focused on these elevated levels of non-neutralizing antibodies generated against rHuPH20 and any possible effects of these antibodies.

So I want to reiterate that no adverse events related to these antibodies were seen in the Phase III HyQ registration trial. However, much like the standard battery of toxicology tests we've already completed in order to establish the safety profile of the rHuPH20 enzyme, the CRL has requested that we address any potential risk of exposure to the elevated enzyme antibody titers observed in the HyQ program through this similar battery of tests.

Read the rest of this transcript for free on

3 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
AAPL $95.18 0.00%
FB $117.43 0.00%
GOOG $692.36 0.00%
TSLA $232.32 0.00%
YHOO $36.01 0.00%


Chart of I:DJI
DOW 17,750.91 -140.25 -0.78%
S&P 500 2,063.37 -18.06 -0.87%
NASDAQ 4,763.2240 -54.37 -1.13%

Free Reports

Top Rated Stocks Top Rated Funds Top Rated ETFs