Study: Clozapine may have saved schizophrenics

July 13, 2009 By MARIA CHENG , AP Medical Writer

(AP) -- Thousands of people with schizophrenia worldwide could have been saved if doctors had prescribed them the anti-psychotic drug clozapine, a new study says.

Clozapine was introduced in the 1970s, but was banned for about a decade because of a rare but potentially deadly side effect: up to 2 percent of patients lose their white blood cells while taking the drug.

It was brought back to the market in the 1980s with warnings about its use, and is sold generically as Clozaril, Leponex, Denzapine, Fazaclo, among other names.

In most developed countries, guidelines recommend clozapine only as a last resort, if patients have already tried two other drugs but still aren't better.

In a study examining the death rates of about 67,000 in Finland versus those of the general population between 1996 and 2006, Jari Tiihonen, of the University of Kuopio in Finland, and colleagues found that patients on clozapine had the lowest risk of dying, compared to other patients with schizophrenia. The study was published online Monday in the medical journal, .

James MacCabe, a consultant psychiatrist at the National Psychosis Unit at South London and Maudsley Hospital, called the research "striking and shocking." He was not linked to the study.

"There is now a case to be made for revising the guidelines to make clozapine available to a much larger proportion of patients," he said.

Tiihonen and colleagues found that even though the use of anti-psychotic medications has jumped in the last decade, people with schizophrenia in Finland still die about two decades earlier than other people.

The researchers concluded that newer drugs including quetiapine, haloperidol and risperidone increased the death risk by 41 percent, 37 percent and 34 percent respectively, when compared to older drugs. In contrast, patients on clozapine had a 26 percent lower chance of dying. The study was paid for by Finland's Ministry of Health and Welfare.

Experts said the Finnish findings could be extrapolated to most other developed countries. MacCabe suggested doctors might give their schizophrenic patients clozapine after trying one other drug, as opposed to two.

MacCabe said clozapine is particularly effective in reducing suicidal tendencies in schizophrenic patients, in whom suicides account for about 40 percent of unexpected deaths.

"We should find ways to get more people on this medicine," said Lydia Chwastiak of the department of psychiatry at Yale University, who was not connected to the research. A study at the University of Maryland found that African-American patients in particular are treated less often with clozapine.

"If this drug can help people live longer, we need to look seriously at the barriers to using it," she said.

Tiihonen said the pharmaceutical industry is partly to blame for why clozapine has often been overlooked. "Clozapine's patent expired long ago, so there's no big money to be made from marketing it," he said.


On the Net:

©2009 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.

Related Stories

Recommended for you

Study traces hospital-acquired bloodstream infections to patients' own bodies

October 15, 2018
The most common source of a bloodstream infection acquired during a hospital stay is not a nurse's or doctor's dirty hands, or another patient's sneeze or visitor's cough, but the patient's own gut, Stanford University School ...

Researchers make essential imaging tests safer for people at risk of acute kidney injury

October 15, 2018
Every year, millions of people undergo medical tests and procedures, such as coronary angiography, which use intravascular contrast dyes. "For the majority of patients, these are safe and necessary procedures. However, about ...

Medical marijuana might help MS patients, but uncertainty remains

October 13, 2018
Medical products derived from marijuana might have a mild benefit in treating symptoms of multiple sclerosis, based on reports from patients.

Do not give decongestants to young children for common cold symptoms, say experts

October 11, 2018
Decongestants should not be given to children under 6—and given with caution in children under 12—as there is no evidence that they alleviate symptoms such as a blocked or runny nose, and their safety is unclear, say ...

New techniques can detect Lyme disease weeks before current tests

October 11, 2018
Researchers have developed techniques to detect Lyme disease bacteria weeks sooner than current tests, allowing patients to start treatment earlier.

Pneumonia-causing bacteria can be spread by nose picking and rubbing

October 11, 2018
Pneumonia-causing bacteria can be spread through picking and rubbing the nose, according to new research published in the European Respiratory Journal.


Adjust slider to filter visible comments by rank

Display comments: newest first

1 / 5 (5) Jul 13, 2009
Why cant we just get these people off the earth???
5 / 5 (6) Jul 13, 2009
Magpies, we haven't been able to find a way to get ignorant dolts like you "off the earth." And abysmal stupidity is far more destructive and difficult to treat than schizophrenia.

Seriously, you should stop reading these articles. They may be a threat to your narrow-minded bigotry. You're spouting off now, but if you keep reading, you might activate some brain cells that may inadvertently cause you to think and, god forbid, feel.

not rated yet Jul 13, 2009
magpies 0, RFC 1, stay tuned
not rated yet Jul 13, 2009
Schizophrenia is a disease or a mental illness?--
The previous article that says white matter in the brain does not grow in schizophenics is basically saying that schizophrenia is a disease of the brain not an "illness".

Please sign in to add a comment. Registration is free, and takes less than a minute. Read more

Click here to reset your password.
Sign in to get notified via email when new comments are made.