WASHINGTON — On March 29, Georgetown University Hospital opened a proton-therapy cancer unit that is expected to treat about 300 patients a year at premium prices using what its proponents promote as the most advanced radiology for attacking certain tumors.
At the facility’s heart is a 15-ton particle accelerator that bombards malignancies with beams of magnet-controlled protons designed to stop at tumors rather than shoot through them like standard X-ray waves, mostly sparing healthy tissue.
With the addition, Georgetown joined a medical arms race in which hospitals and private investors, sometimes as partners, are pumping vast sums of money into technology whose effectiveness, in many cases, has not yet been shown to justify its cost.
Although most of the proton centers in the United States are profitable, the industry is littered with financial failure: Nearly a third of the existing centers lose money, have defaulted on debt or have had to overhaul their finances.
For Georgetown officials, it was still a bet worth making.
“Every major cancer center that has a full service radiation oncology department should consider having protons,” said Dr. Anatoly Dritschilo, the chief of the hospital’s radiation medicine department.
Many have. There are 27 proton therapy centers now operating in the United States. Nearly as many are being built or planned. Georgetown’s, which vies for patients with a struggling unit in Baltimore, will soon compete with another in Washington and one in Northern Virginia.
But about 30 years after the Food and Drug Administration first approved proton therapy for limited uses, doctors often hesitate to prescribe it and insurers often will not cover it.
That means there simply may not be enough business to go around.
“The biggest problem these guys have is extra capacity,” said Dr. Peter Johnstone, the chief executive at Indiana University’s proton center before it closed in 2014, in need of an upgrade but lacking the potential patients to pay for it. “They don’t have enough patients to fill the rooms.”
At Indiana, he added, “we began to see that simply having a proton center didn’t mean people would come.”
Proton therapy was initially used to treat tumors in delicate areas where surgery was not an option — near the eye, for example — and in children, and it remains the best choice in such cases.
But its pinpoint precision has not been shown to be more effective against breast, prostate and other common cancers. One recent study of lung-cancer patients found no significant difference in outcomes between people receiving proton therapy and those getting a focused kind of traditional radiation, which is much less expensive. Other studies are still underway.
“Commercial insurers are just not reimbursing” for proton therapy except for pediatric cancers or tumors near sensitive organs, substantially limiting the potential treatment pool, said Brandon Henry, a medical device analyst for RBC Capital Markets.
Medicare covers proton therapy more readily than private insurers, but relying solely on Medicare patients does not allow backers of some treatment centers to recoup their investments, much less turn a profit, analysts said.
For a glimpse of what can go wrong, consider the Maryland Proton Treatment Center in Baltimore, which is affiliated with the University of Maryland Medical Center.
Opened two years ago with a “Survivor”-themed party and lofty financial goals, the unit is already undergoing a restructuring that is inflicting large losses on its outside investors, including wealthy families from Texas.
Before the Baltimore center opened, those behind it saw their market stretching from Philadelphia to Northern Virginia and encompassing 20,000 potential patients a year. Officials predicted the unit would treat “north” of its current rate of about 85 patients a day, said Jason Pappas, the acting chief executive.
How far north?
“Upper Canada,” said Mr. Pappas, declining to provide hard numbers. He said the center would break even by the end of the year.
The patient shortage might not be a good sign for projects in the pipeline, but it is encouraging for those who take a dim view of proton therapy’s rise.
“Something that gets you the same clinical outcomes at a higher price is called inefficient,” said Dr. Ezekiel Emanuel, a health policy professor at the University of Pennsylvania, which operates one proton center and is developing another. “If investors have tried to make money off the inefficiency, I don’t think we should be upset that they’re losing money on it.”
The proton therapy boom effectively began in 2001, when Massachusetts General Hospital in Boston opened a proton unit, raising the profile of what was a little-used technology. By 2009, developers were flocking to the field, lured by the belief that insurers would cover treatment bills that run to $48,000 and more.
The treatment held particular promise for prostate cancer patients, given the potential side effects, including incontinence and impotence, associated with traditional radiation.
But a 2013 Yale study found little difference in those conditions among patients getting proton therapy versus those getting traditional radiation. Within a year, several insurers stopped covering the therapy for prostate cancer or were reconsidering it.
Indiana University’s center was the first to close. Before long, others were in dire financial straits.
California Protons in San Diego, which was once associated with the Scripps Health hospital network, filed for bankruptcy protection last year. An abandoned proton project in Dallas is in bankruptcy as well.
In Virginia, the Hampton University Proton Therapy Institute has lost money for at least five straight years, financial statements show. In Knoxville, Tenn., the Provision CARES Proton Therapy Center lost $1.7 million last year on revenue of $23 million, $5 million short its target.
Centers in Somerset, N.J., and Oklahoma City run by privately held ProCure have defaulted on their debts, according to the investment firm Loop Capital. A center associated with Seattle Cancer Care Alliance, a hospital consortium, in Washington State lost $19 million in the 2015 fiscal year before restructuring its debt, documents show. A center near Chicago lost tens of millions of dollars before its own restructuring as part of a 2013 sale to hospitals now affiliated with Northwestern Medicine, according to regulatory documents.
Scott Warwick, executive director of the National Association for Proton Therapy, a trade group, blames “over-exuberant expectations” for the problems.
“I think maybe that’s what went on with some of the centers,” he said. “They thought the technology would grow faster than it has.”
The industry is using advertising and marketing to urge patients and lawmakers to press insurers to pay for proton therapy. Oklahoma recently passed a law requiring that insurers evaluate the treatment on an equal basis with other therapies. Virginia has considered similar legislation. At the National Proton Conference in Orlando last year, a full day was devoted to winning over insurers. The Alliance for Proton Therapy Access, another industry group, has software for generating letters to the editor demanding coverage.
Until the insurance outlook changes, those developing new proton centers have scaled back their ambitions. Georgetown’s unit, for example, cost $40 million and has a single treatment room. The one in Baltimore cost $200 million and has five.
Following the Georgetown model, with one or two treatment rooms, should allow centers in major metropolitan areas to make money, said Prakash Ramani, a senior vice president at Loop Capital, which is involved with projects in Alabama, Florida and elsewhere.
Not all the new units are small. In some cases, hospitals are joining forces to make the finances work. In New York, Memorial Sloan Kettering, Mount Sinai Health System and Montefiore Health System have teamed up on a $300 million unit with an 80-ton particle accelerator and four treatment rooms that is set to open in East Harlem next year.
Officials, counting on the New York area’s vast population and referrals from three major health systems, expect the center to treat 1,400 people a year. They will soon learn whether their project fares better than the Indiana proton center did.
“What places need now are patients,” Dr. Johnstone, that center’s former chief, said, “a huge supply of patients.”
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