Baby Z Cured of Rare Disease in 3 Days

Orphan drug treatment used only on mice to get hearing before FDA.

ByABC News
November 8, 2009, 11:12 PM

Nov. 9, 2009— -- Baby Z had a one in a million chance of developing a rare metabolic disorder called molybdenum cofactor deficiency and zero chance of avoiding the inevitable death sentence that comes with it.

The Australian girl had a seemingly normal birth in May 2008 but, within hours, she began having multiple seizures -- as many as 10 an hour -- as sulfite build-up began to poison her brain.

But her parents refused to let her die and successfully lobbied Southern Health's Monash Children's Hospital in Melbourne to try an experimental treatment that had only been used on mice.

"There was courage or there was death," the mother, who requested anonymity, told Australia's TV 9 in a telephone link-up. "If she wasn't treated, she would die a very painful death."

With the clock ticking, doctors who treated Baby Z gained approval from the hospital's ethics board and a family court to use the experimental treatment.

The drug -- cPMP, a precurser molecule made from E. coli bacteria -- was airlifted on ice from the lab of German professor Guenter Schwarz and, within three days, it worked.

Now, doctors consider 18-month-old Baby Z cured and a second child, Baby P of Germany, is successfully undergoing the same therapy.

Schwarz and others who pioneered her startling recovery will appear before the Food and Drug Administration Tuesday looking for a fast-track application for an orphan drug approval in the United States.

But their medical journey raises ethical questions about using untested therapies on children who can't speak for themselves.

"This is not voodoo or snake oil," said Mark Sands, professor of internal medicine and genetics at Washington University School of Medicine in St. Louis, who knows one of the German co-researchers, Jochen Reiss.

"This approach is based on very good science," he said.

About 25 million Americans suffer from orphan diseases, those that affect fewer than 200,000 nationwide.

"A lot of things are very debilitating for a small number of people," said Dr. Timothy Cote, director of orphan drug product development at the FDA. "They are individually infrequent, but collectively common."

Created in 1983, the program has given incentives and pioneered therapies for conditions ranging from venom bites to plutonium poisoning.

Worldwide, there are only about 50 cases of molybdenum cofactor, or sulfite oxidase deficiency, mostly in Europe and in the United States, according to the National Institutes of Health.