CerviLenz aims to lower preterm birth rate

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By Mary Vanac

A disposable device made by Chagrin Falls, Ohio-based CerviLenz Inc. aims to take the guesswork out of determining the risk of premature birth.

Introduced May 17 at the American Academy of Obstetricians and Gynecologists annual meeting in San Francisco, the CerviLenz measures the length of the cervix in women experiencing pre-term labor. Clinicians see many such cases, but the majority don’t end in preterm birth, according to CerviLenz medical director Dr. Michael Ross. Because research has shown the length of a woman’s cervix is a good indicator of imminent birth, clinicians can use the CerviLenz device as part of an exam to asses preterm birth risk.

“Evaluating cervical length and any cervical change over time is well-established as critical in determining preterm birth risk,” said Ross, a maternal-fetal medicine specialist, in a written statement. “A CerviLenz measurement adds significant clinical value to preterm labor triage.”

The cost of preterm births is staggering. In a 2006 report, the National Academies put the cost at $26 billion a year in the U.S.

Standard practice is for clinicians to estimate cervical length with a physical exam when a patient has premature contractions.

“CerviLenz gives clinicians an objective evaluation right away,” Ross said.

That evaluation could indicate no preterm labor or speed a doctor’s decision to admit a patient or use other tests, such as transvaginal ultrasound or fetal fibronectin, to complete a diagnosis of preterm labor.

On Monday, Dr. Richard Burwick of Harbor-UCLA Medical Center in Los Angeles presented data from a new study indicating that a CerviLenz measurement of 30 millimeters is equivalent to Hologic Inc.’s fetal fibronectin test in predicting preterm birth.

CerviLenz was invented by Dr. Rosalyn Baxter-Jones, an obstetrician and gynecologist in San Diego who needed a simple, low-cost way to identify patients at risk for preterm births. Ross, chairman of the Harbor-UCLA Medical Center’s department of obstetrics and gynecology, and Dean Koch, president and CEO of CerviLenz, bought a majority interest in the technology in 2006.

In May 2008, CerviLenz received a $350,000 investment commitment from Northeast Ohio venture developer JumpStart Inc. The investment launched commercialization of the device that already had Food & Drug Administration approval to be sold.

A year ago, CerviLenz landed $4 million from venture firms Arboretum Ventures in Ann Arbor, Michigan, and Chrysalis Ventures in Louisville, Kentucky, to take its device through clinical trials and into the market. At that time, the company thought its $30 device could make cervical checks common during pregnancy — particularly since physicians can use the information to administer progesterone, which can drastically cut the risk of many preterm births.

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