Survey responders: 139
Median Age 56 (range 29 - 77
years)
Preferred 2nd Treatment for
follicular lymphoma (if chemo
required)
| Preferred
2nd Treatment |
No. |
% |
| R-Chemo,
observation |
19 |
14% |
| R-Chemo,
maintenance R |
36 |
26% |
| Chemo,
vaccine (if approved) |
36 |
26% |
| Chemo, RIT
|
23 |
17% |
| No
preference |
25 |
18% |

|
Confidence in preference |
No. |
% |
| Convinced
|
18 |
13% |
| Confident
|
66 |
47% |
| Moderate
confidence |
45 |
32% |
| Low
confidence |
10 |
7% |
Beware of confidence! ... blessed
are the unsure, because they will
continue to ask questions.
| Would
Consider Trials |
No. |
% |
| Only if Onc
discusses |
60 |
43% |
| Even If Onc
Doesn't |
72 |
52% |
| Never |
7 |
5% |
Limitations: The online
community is a young "crowd" (median
56 years) and may have attitudes
that do not predict those in the
general population, which is ~10
years older. Further, the sample was
non-random - which can lead to
biased results ... for example,
those with No Preference may be less
likely to participate in the survey.
Further there is no way to be
certain that people will correctly
self-identify their preferences and
attitudes.
Discussion: As we know,
preferences are not equivalent to
what is best - that will require
comparative trials with long follow
up to determine. We decided to leave
out plain "vanilla" RIT and Rituxan
(without chemo induction) to make
the choices more comparable,
anticipating that almost everyone
would choose Rituxan if it was among
the choices (in order to avoid the
chemo). We note further that
the individual's unique clinical circumstances can be
the critical factor in the selection
of therapy.
The survey was prompted by an
investigator's request who hoped to
establish that vaccine could compete
with Rituxan as a consolidation
option (assuming it is approved -
and we truly have no opinion or
expectation if it will prove to be
effective or not). This is the
reason that only one investigational
choice was provided.
What the preference data suggests
is that if chemo is received as
induction therapy that consolidation
of some type is preferred to
observation (to waiting for it to
come back) ... in this group of
patients, noting the above
limitations.
Regarding vaccines: We
expect that if vaccine was proven
equivalent to Rituxan maintenance,
in terms of efficacy (such as time
to progression), the side effect
profile would significantly favor
vaccine ... so the high preference
for vaccine (36%) was expected ...
and we further expect that those
favoring it over Rituxan would
increase when presented with the
relative safety data (again,
assuming equivalence in other
respects).
A caveat of vaccine therapy is
that it requires a surgical
procedure (a biopsy) to produce it.
If this is a minor issue, we can't
say.
However, crystal clarity is not
the rule in clinical science - more
typically we have to deal with a
tradeoff - studies showing one
protocol better in potential
efficacy, but worse in potential
toxicity. ... The answer
requiring follow up sufficient to
see a survival advantage for one
versus the other protocol in
randomly selected groups of
patients. Importantly,
correlative studies are needed to
help predict individual outcomes -
to identify biomarkers that predict
which individuals will benefit from
which protocol, and what should be
avoided.
Finally, until such time, we can
expect that the opinion of our
doctors will influence what is
prescribed (probably
significantly)... maybe not so much
with this confident group, but
almost certainly in the general
population.
Many, many thanks to the
participants!
Karl S (PAL)