The treatment may sound appalling, but it works.
Transplanting feces from a healthy person into the gut of one who is sick can quickly cure severe intestinal infections caused by a dangerous type of bacteria that antibiotics often cannot control.
A new study finds that such transplants cured 15 of 16 people who had recurring infections with Clostridium difficile bacteria, whereas antibiotics cured only 3 of 13 and 4 of 13 patients in two comparison groups. The treatment appears to work by restoring the gut’s normal balance of bacteria, which fight off C. difficile.
The study is the first to compare the transplants with standard antibiotic therapy. The research, conducted in the Netherlands, was published Wednesday in The New England Journal of Medicine.
Fecal transplants have been used sporadically for years as a last resort to fight this stubborn and debilitating infection, which kills 14,000 people a year in the United States. The infection is usually caused by antibiotics, which can predispose people to C. difficile by killing normal gut bacteria. If patients are then exposed to C. difficile, which is common in many hospitals, it can take hold.
The usual treatment involves more antibiotics, but about 20 percent of patients relapse, and many of them suffer repeated attacks, with severe diarrhea, vomiting and fever.
Researchers say that, worldwide, about 500 people with the infection have had fecal transplantation. It involves diluting stool with a liquid, like salt water, and then pumping it into the intestinal tract via an enema, a colonoscope or a tube run through the nose into the stomach or small intestine.
Stool can contain hundreds or even thousands of types of bacteria, and researchers do not yet know which ones have the curative powers. So for now, feces must be used pretty much intact.
Medical journals have reported high success rates and seemingly miraculous cures in patients who have suffered for months. But until now there was room for doubt, because no controlled experiments had compared the outlandish-sounding remedy with other treatments.
The new research is the first to provide the type of evidence that skeptics have demanded, and proponents say they hope the results will help bring fecal transplants into the medical mainstream, because for some patients nothing else works.
“Those of us who do fecal transplant know how effective it is,” said Dr. Colleen R. Kelly, a gastroenterologist with the Women’s Medicine Collaborative in Providence, R.I., who was not part of the Dutch study. “The tricky part has been convincing everybody else.” (...)
Dr. Keller said that patients were so eager to receive transplants that they would not join the study unless the researchers promised that those assigned to antibiotics alone would get transplants later if the drugs failed.
Among the 16 who received transplants, 13 were cured after the first infusion. The other three were given repeat infusions from different donors, and two were also cured. In the two groups of patients who did not receive transplants, only 7 of 26 were cured.
Of the patients who did not receive transplants at first and who relapsed after receiving antibiotics only, 18 were subsequently given transplants, and 15 were cured.
The study was originally meant to include more patients, but it had to be cut short because the antibiotic groups were faring so poorly compared with the transplant patients that it was considered unethical to continue.

A new study finds that such transplants cured 15 of 16 people who had recurring infections with Clostridium difficile bacteria, whereas antibiotics cured only 3 of 13 and 4 of 13 patients in two comparison groups. The treatment appears to work by restoring the gut’s normal balance of bacteria, which fight off C. difficile.
The study is the first to compare the transplants with standard antibiotic therapy. The research, conducted in the Netherlands, was published Wednesday in The New England Journal of Medicine.
Fecal transplants have been used sporadically for years as a last resort to fight this stubborn and debilitating infection, which kills 14,000 people a year in the United States. The infection is usually caused by antibiotics, which can predispose people to C. difficile by killing normal gut bacteria. If patients are then exposed to C. difficile, which is common in many hospitals, it can take hold.
The usual treatment involves more antibiotics, but about 20 percent of patients relapse, and many of them suffer repeated attacks, with severe diarrhea, vomiting and fever.
Researchers say that, worldwide, about 500 people with the infection have had fecal transplantation. It involves diluting stool with a liquid, like salt water, and then pumping it into the intestinal tract via an enema, a colonoscope or a tube run through the nose into the stomach or small intestine.
Stool can contain hundreds or even thousands of types of bacteria, and researchers do not yet know which ones have the curative powers. So for now, feces must be used pretty much intact.
Medical journals have reported high success rates and seemingly miraculous cures in patients who have suffered for months. But until now there was room for doubt, because no controlled experiments had compared the outlandish-sounding remedy with other treatments.
The new research is the first to provide the type of evidence that skeptics have demanded, and proponents say they hope the results will help bring fecal transplants into the medical mainstream, because for some patients nothing else works.
“Those of us who do fecal transplant know how effective it is,” said Dr. Colleen R. Kelly, a gastroenterologist with the Women’s Medicine Collaborative in Providence, R.I., who was not part of the Dutch study. “The tricky part has been convincing everybody else.” (...)
Dr. Keller said that patients were so eager to receive transplants that they would not join the study unless the researchers promised that those assigned to antibiotics alone would get transplants later if the drugs failed.
Among the 16 who received transplants, 13 were cured after the first infusion. The other three were given repeat infusions from different donors, and two were also cured. In the two groups of patients who did not receive transplants, only 7 of 26 were cured.
Of the patients who did not receive transplants at first and who relapsed after receiving antibiotics only, 18 were subsequently given transplants, and 15 were cured.
The study was originally meant to include more patients, but it had to be cut short because the antibiotic groups were faring so poorly compared with the transplant patients that it was considered unethical to continue.
by Denise Grady, NY Times | Read more:
Gretchen Ertl for The New York Times