OAKLAND (BLOOMBERG, REUTERS) - A California jury on Wednesday (March 13) ordered Johnson & Johnson to pay US$29 million (S$39 million) to a woman who alleged that asbestos in the company's talcum-powder-based products, including Johnson's Baby Powder, caused her mesothelioma, the latest defeat for the healthcare conglomerate which is facing thousands of similar lawsuits.

J&J denies allegations that its talc causes cancer, saying numerous studies and tests by regulators worldwide have shown that its talc is safe and asbestos-free.

Jurors in state court in Oakland, California, Wednesday held J&J responsible for Teresa Leavitt's mesothelioma, a cancer linked to asbestos exposure.

The panel, which included a lawyer and a state-court judge, also found the world's largest maker of health-care products didn't warn Leavitt its baby powder was tainted with the carcinogen.

J&J stock dropped as much as 2 per cent in after-hours trading to US$136.40 after the verdict was announced. It closed at US$139.41 Wednesday in New York.

The company's shares have been under pressure over the past six months because of the growing talc litigation.

The verdict is J&J's seventh trial loss over claims it hid the health risks of its baby powder for 50 years. It's the first defeat since a Missouri jury ordered the company last year to pay $4.69 billion to 22 women who blamed their cancer on the product.

J&J officials contend Superior Court Judge Brad Seligman made errors in rulings on procedure and evidence in the trial that should have resulted in a mistrial.

"We are disappointed with today's verdict and will pursue an appeal because Johnson's Baby Powder does not contain asbestos or cause cancer," Kim Montagnino, a J&J spokeswoman, said in an emailed statement.

J&J, which has steadfastly denied its baby powder is contaminated with asbestos, still faces more than 13,000 lawsuits claiming its 135-year-old baby powder line caused mesothelioma and ovarian cancer. That's up from more than 11,000 as of last year.

It has more than two dozen trials scheduled around the US this year.

The Oakland jury of five men and seven women ordered J&J to pay US$29 million in actual damages for Leavitt's injuries after finding that J&J's handling of the asbestos-laced baby powder was a "substantial contributing factor" in her cancer's development.

The panel also cited J&J for "failing to adequately warn" about the powder's "potential risks."

The panel found J&J responsible for 78 per cent of Leavitt's award and its consumer products unit is on the hook for 20 per cent. Cypress Mines, one of J&J's former talc suppliers, is answerable for the remaining 2 per cent.

Imerys Talc America Inc., which also supplied talc for J&J's powder, had been named as a defendant, but was dropped from the case after seeking bankruptcy protection to avoid being swamped with talc suits. Its a unit of Paris-based Imerys SA.

Leavitt's doctors say her mesothelioma is advanced and she's not expected to live beyond 2020, according to testimony in the case. The mother of two testified that baby powder was used on her when she was a child, and she continued that practice into adulthood, sometimes as a "dry shower'' and as foundation for her makeup.

Her lawyers noted that internal J&J documents indicated officials knew since the 1970s baby powder mined in places such as Vermont and Italy contained trace amounts of asbestos, but failed to alert consumers or regulators. Asbestos is often found intertwined with talc.

Even though Leavitt stopped using baby powder two decades ago, recent tests of her lung tissue showed evidence of asbestos, an expert witness testifying for the plaintiff told jurors at one point in the trial. He said the specific type of asbestos wasn't industrial grade, which would have indicated she was exposed to it on the job.

J&J's attorneys countered there was no credible evidence the company's baby powder caused her mesothelioma and evidence of talc in her tissue could have come from a myriad of sources.

The company has long argued multiple studies have shown the powder to be free of the carcinogen and that plaintiffs' cancers were tied to asbestos exposures at work or though building materials in homes or offices.

J&J has refused to put a warning on its recognisable white bottles bearing the powder, even though a separate California jury last year asked a judge to order the company to do so. After the judge refused, that panel ordered J&J to pay a total of US$27.5 million in damages to a woman who sued the company over her cancer.

One juror said after Wednesday's verdict that she probably won't buy any more J&J baby powder.

"They knew there was asbestos in it, and for me that's the worst part because they failed to warn the consumer," said Kate Alessandri, an Oakland librarian.

Another juror, Anu Agarwal, a product manager in Castro Valley, said J&J was irresponsible for failing to adequately follow up on studies that showed the presence of asbestos in Baby Powder. But she added that she didn't think Leavitt's lawyers proved that her cancer was the result of exposure to talc.

"I don't think they made a good case" that J&J's Baby Powder "contained a significant enough amount of asbestos contamination to cause the illness," she said.

The Oakland case is Leavitt v. J&J, RG17882401, California Superior Court, Alameda County (Oakland).