Why NICE is not nice for cancer therapy?
By evaluating medicines thoroughly in a real world
way, pharmacists empower others to make important decisions about funding
choices. Dr MAX Summerhayes, principal oncology pharmacist for Guys and
St Thomas Hospitals presented a local ranking system developed in the
south-east London area for prioritising funding decisions on oncology
drugs. In our system, benefit and evidence are ranked together he said,
both aspects being given a rating according to separate scales (see ranking
Panel). Participants heard that although the results from the local ranking
system are sometimes in agreement with the verdicts delivered in National
Institute for Clinical Excellence appraisals (eg taxanes), they are often
at odds.
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Local ranking systems
for efficacy and evidence of oncology drugs
Local ranking of efficacy
A
Prolongs median survival by more than 9 months and improves quality
of life
B Prolongs
median survival by 3–6 months and improves quality of life
C Improves
quality of life, but no survival benefit
D Minimal
quality of life impact and no survival impact
Local ranking of evidence
a+ Data from
meta-analysis or two randomised controlled trials
a One high
quality randomised controlled trial and supporting non-randomised
data
b One poor
quality randomised controlled trial and/or several phase II studies
g Single phase
II study only
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Dr Summerhayes highlighted the cases of gemcitabine
(Gemzar) and temozolamide (Temodal) which were quickly processed by NICE
and given a positive appraisal. The local system had given these low ratings
when compared with 30 other potential oncology developments. Another example
was rituximab (Mab Thera). This was rated highly by the local system,
he said, but NICE has taken over nine months to deliberate on the drug
and it is currently subject to an appeal which suggests that an unfavourable
NICE verdict may be imminent. NICE appears to recommend, without problems,
things that locally we rank low, and to have problems with things we rank
high, he said (see NICE Panel).
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Comparison of NICE
verdicts with a local ranking system
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Oncology drug
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Time to NICE verdict
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NICE verdict
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Local evaluation
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Local ranking
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Gemcitabine
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7 months
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Approved
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C/b
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27/32
|
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Topotecan
|
7 months
|
Approved
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B/ba-
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11/32
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Temozolamide
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7 months
|
Approved
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C/b
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18/32
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Taxanes (breast)
|
6 months
|
Approved
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B/a-
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7/32
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Taxanes (ovary)
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6 months
|
Approved
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A/a+
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1/32
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Drugs for non small-cell lung cancer
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7 months
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Approved
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B-C/a+
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6/32
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Rituximab
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9 months +
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Appeal
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B-A/b
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3/32
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Herceptin
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12 months +
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Preliminary appraisal stage
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B/a-
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7/32
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Vinorelbine
|
18 months
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Preliminary appraisal stage
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C/b
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18/32
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Dr Summerhayes then began to explore some of the
possible reasons for this and drew attention to the fact that NICE appraises
products in isolation. He explained that this means their relative value
cannot be assessed, and there can be no mechanism for consistency. He
gave an example of two separate oncology appraisals: one in which phase
II clinical trial data had been used as part of the appraisal process,
and another in which phase II data had been disallowed. No recently licensed
product is likely to be all bad, he said, and clinicians seldom say
that they will never use a product. This means that looking at individual
oncology drugs in isolation is somewhat unrealistic.
Another problem Dr Summerhayes highlighted is that
the appraisal process is predominantly conducted by those not working
in oncology. He explained that the report teams may be familiar with large
trials that have single end-points, but that these are unusual in oncology.
He explained that, in oncology, many end-points are difficult to assess
using quality of life measures, and various other features make them unusual
compared with trials in other clinical areas. This could result in NICE
report teams not understanding end-points, not comprehending the trial
strategy, or failing to spot flaws in the trial design.
Dr Summerhayes questioned how NICE could assess
the worth of a drug without set criteria against which to make a judgement.
What is the value of a saved or extended life he asked. He was also
concerned that there are no explicit guidelines on how to reject evidence.
Finally he said that NICE is in real danger of becoming discredited by
its decisions, since it does not seem to know how to turn a product down.
He concluded that the revised NICE process may be
more satisfactory in terms of appraisal. The new scoping process will
involve more far-reaching consultation and at an earlier stage so that
real expertise will be enrolled, he said. However, this will be at the
expense of a greatly slowed turnover time for each appraisal (at least
a year), and this will probably be too long for all concerned.
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