Columbia Laboratories Announces USPTO Notice of Allowance for Key Progesterone Preterm Birth Patent
LIVINGSTON, NJ — October 12, 2010 — Columbia Laboratories, Inc. (Nasdaq: CBRX) announced today that the U.S. Patent and Trademark Office (USPTO) has issued Watson Pharmaceuticals, Inc. (NYSE: WPI) a Notice of Allowance for a key patent for the use of progesterone to treat or prevent preterm birth. The USPTO issues a Notice of Allowance to report that a patent application has been examined and is allowed for issuance as a patent. The patent is expected to issue within three months upon payment of required fees.
The new patent pertains to the use of progesterone to treat women with a short cervix at mid-pregnancy to prevent spontaneous preterm birth. A short cervix at mid-pregnancy is the single most important predictor of preterm birth. The patent will cover CRINONE® and PROCHIEVE® (progesterone gels) and any next-generation products in the potential new preterm birth indication until at least February 2028. The patent application was among the assets Columbia sold to Watson in July 2010.
“This use patent, which is founded in our longstanding research efforts in preventing preterm birth, will help safeguard our future royalty stream from Watson Pharmaceuticals for progesterone products in the potential preterm birth indication,” said Frank C. Condella, Jr., Columbia’s president and chief executive officer. “We look forward to reporting results of the PREGNANT Study, our pivotal Phase III clinical trial of PROCHIEVE to reduce the risk of preterm birth in women with a short cervix at mid pregnancy, in December."
About CRINONE/PROCHIEVE CRINONE (progesterone gel) is currently used for progesterone supplementation or replacement as part of an Assisted Reproductive Technology (ART) treatment for infertile women with a progesterone deficiency. Patient preference for CRINONE over competing products has been demonstrated in five clinical trials. The product is also available under the trade name PROCHIEVE and available in both 4% and 8% concentrations. CRINONE/PROCHIEVE 4% is indicated for the treatment of secondary amenorrhea.
A Phase III clinical program called the PREGNANT (PROCHIEVE Extending GestatioN A New Therapy) Study is currently underway to evaluate the safety and efficacy of PROCHIEVE to reduce the risk of preterm birth in women with a cervical length between 1.0 and 2.0 centimeters as measured by transvaginal ultrasound at mid-pregnancy. The primary endpoint of this study is a reduction in the incidence of preterm birth at less than or equal to 32 weeks gestation vs. placebo. Top-line study results are expected in December 2010. If the data are positive, an NDA filing will follow in 2011. Preterm birth occurs in one of every eight live born infants. There are currently no products approved for the prevention of preterm birth. Important Safety Information The most common side effects of CRINONE/PROCHIEVE include breast enlargement, constipation, somnolence, nausea, headache, and perineal pain. CRINONE/PROCHIEVE is contraindicated in patients with an active thrombophlebitis or thromboembolic disorders, or a history of thrombophlebitis or thromboembolic disorders, missed abortion, undiagnosed vaginal bleeding, liver dysfunction or disease, and known or suspected malignancy of the breast or genital organs.
About Columbia Laboratories Columbia Laboratories, Inc. is focused on developing products that utilize its novel bioadhesive drug delivery technologies to optimize drug delivery in a controlled, sustained manner. The Company's strategy is to fund new development projects through proof of concept, then partner for later-stage clinical development and commercialization. CRINONE is marketed by Watson Pharmaceuticals in the United States and by Merck Serono in foreign countries.
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