Anti-TNFs accepted by NICE for rheumatoid arthritis
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 Rheumatoid arthritis: adalimumab added to drug arsenal |
Adalimumab (Humira) has been added to the anti-tumour necrosis factor (TNF) therapies that can be prescribed
for rheumatoid arthritis in the latest round of guidance issued by the National Institute for Health and Clinical Excellence.
The guidance replaces a technology
appraisal issued in 2002 (PJ, 30 March 2002,
p419) that endorsed infliximab (Remicade) and etanercept (Enbrel) as
treatments for rheumatoid arthritis.
The latest guidance additionally
includes adalimumab and takes into account changes in the marketing
authorisations for infliximab and etanercept.
The therapies are recommended
as options
for the treatment of active rheumatoid arthritis in patients in England
and Wales who have already tried two disease-modifying antirheumatic
drugs, including methotrexate (see Panel below).
Definitions
The technology appraisal specifies that a trial of a disease-modifying
antirheumatic drug is defined as being normally of six months’ duration,
with two months at standard dose, unless significant toxicity has
limited the dose or duration of treatment.
Active rheumatoid arthritis is defined by a disease activity score (DAS28)
greater than 5.1, confirmed on two or more occasions one month apart.
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NICE recommends that the drugs should be initiated and the patients
followed up only by a specialist rheumatology team and that the drugs
should normally
be used in combination with methotrexate. However, they may be given
as monotherapy if the patient is intolerant to methotrexate or it is
considered inappropriate, it adds.
The technology appraisal specifies that treatment should be continued
only if there is an adequate response, defined as an improvement in disease
activity score of at least 1.2 points, six months after starting therapy.
NICE advises that treatment should normally be initiated with the least
expensive drug but that this may be varied because of differences in
the mode of administration and treatment schedules.
An alternative TNF inhibitor can be considered for those patients whose
treatment is withdrawn due to adverse effects before the first six-month
assessment of efficacy.
Sequential use, defined as the use of a second TNF inhibitor where there
had been no response to, or loss of response to a first TNF inhibitor,
will be the subject of later guidance.
Andrew Dillon, NICE chief executive and executive lead
for the appraisal, explained: “So that we could issue guidance
as quickly as possible to benefit people with rheumatoid arthritis, NICE
has published the recommendations
relating only to the first use of the drugs. The independent appraisal
committee will give further consideration to the sequential use of these
drugs, and will produce separate guidance on this specific use.” |