Telithromycin antibiotic may help reduce some symptoms
of a bad asthma attack
According to a new study an antibiotic may help reduce
some symptoms of a bad asthma attack.
The majority of acute asthma attacks are thought to be
linked with viral infections which are not affected by
antibiotics.
The researchers however believe the positive effects of
the drug may be as a result of its impact on two
bacteria - Chlamydophila pneumoniae and Mycoplasma
pneumoniae - found present in 61% of patients in the
study.
They suggest the presence of these bacteria could make
asthma attacks more severe and that the
anti-inflammatory effects of
Telithromycin play a part in reducing recovery time.
In an international study of 278 patients it was found
that patients who took the antibiotic telithromycin,
sold by Sanofi-Aventis under the name Ketek, for 10 days
after their attacks showed a drop in asthma symptoms.
Patients in 70 centres around the world, including St
Mary's Hospital in London, were enrolled in the study
within 24 hours of needing medical attention for an
acute asthma attack and split into two groups.
One group were given 800 mgs of Telithromycin daily for
10 days while the other received a dummy version of the
drug.
Both were given the usual treatment for asthma as well.
Symptoms and lung function for the patients in the
Telithromycin group were seen to improve significantly
compared to those given the dummy drug and those
improvements were almost twice as great towards the end
of the treatment period, say the researchers.
Recovery time from an acute attack was reduced from
eight to five days for those on the drug, which is not
licensed for the treatment of asthma but is used to
treat pneumonia, chronic bronchitis and sinusitis.
But they also found by gauging how much air patients
could exhale, the antibiotic showed no benefit, and
those who took the drug were also more likely to
experience nausea.
Asthma is an incurable condition which affects 300 m
people worldwide but its symptoms are eased using
steroids.
By using a 7-point scale that measured symptoms such as
wheezing, coughing and chest tightness with 7 the most
severe, most patients rated their symptoms at about 3
before treatment.
Those receiving the drug eventually had their score drop
an average of 1.3 points and the placebo recipients had
a drop of 1.0 point said the researchers.
Ketek has previously come under scrutiny because it may,
in rare cases, cause liver poisoning.
In three such instances reported in January, one patient
died, another required a transplant, and the third
recovered.
The drug was approved by the U.S. Food and Drug
Administration in 2004, has been prescribed about 2.7
million times.
The study was financed by the drug company Sanofi-Aventis.
The study is published in the current edition of the New
England Journal of Medicine.