http://www.fda.gov/ohrms/dockets/AC/99/transcpt/3528t1.rtf
Part 1:
Read pages
23-25: Then page 40-41 to see clinical study
percentages. Page 64 about how only one Micro
Keratome was approved for LASIK. Page 67-70 makes a
good case as to why more follow up is needed with
unhappy patients saying they didn’t come back (maybe
they didn’t want them to come back and didn’t want
them to complain about the halos, starbursts, dry
eye, and headaches?? Page 81, they’re stating the
80% patient cut off was set by the sponsor, going on
to say that they had a 43 success rate with 7 myopes
like myself at the smaller centers blaming that on
“physician learning curve.” Page 76, they’re
dismissing the “non-pma group” of only 43% success,
saying that the PMA justified LASIK’s safety
anyway. Page 81, they’re talking about the “high
retreatment rates” and how this should be dealt with
in the labeling and that it’s important. Need for
patient satisfaction to be defined by a
questionnaire (I never was asked anything after
LASIK if I was satisfied with halos, burning, dry
eye, double vision, nothing, this of course would
happen with almost every eye at some point). Page
84, they talk about this again, so it “doesn’t come
back and haunt us in the future.” (and I hope I’m
haunting all of these bastards). They’re stating
accountability is only at 57%. This is shit! Page
88, and I agree: “perceived is that there are
different standards for investigator-sponsored PMAs
brought to this Panel than for industry-sponsored
PMAs, and I think that is something the Panel should
be aware of.” Page 89, every doctor has a learning
curve. (great where is this on the FDA website and
why weren’t any of us informed??) Page 90,
retreatment rates at 40% then lowered to 10%, but
yet this isn’t so, just look at the Alcon
Documentary I showed you and Morris Waxler confirmed
this was a huge problem. Page 91, read about the
“missing information” and their concern if it is 1%,
5%, or greater since so much data is missing. Dr.
Rick Ferris is talking about his concern that the
studies are “biased” excluding the worst LASIK
cases, which skews the numbers. Page 92-95, the
guidance document says 90% is the goal, confirmed by
Dr. Matoba. Dr. Macsai “I have difficulty with
accountability at 50-76% at six months.” Since when
is the eye stable and stabilized only measured at 3
months? Who in the hell’s idea of this law started
this idiotic thinking, and for these idiots to not
ask this question just shows the lack of talent
there that day involved. I would have asked, how
are these 2 eyeballs doing at 2,4, 6, 8, 10 years
later? (Jim and Larry, read how much these guys are
distraught and confused about labeling/guidance for
this PMA). Page 95, Dr. Rosenthal interjects
“guidance is guidance” and 80% accountability is
okay. Page 96: Now, this is a procedure that is
being, and I am not arguing one way or the other. I
am just presenting something to you. This is a
procedure that is being done quite extensively
throughout this country in which there is no
information publicly available except what doctors
want to give to patients based upon off-label use.
It is the practice of medicine. It is not being
done one or two times. It is being done thousands of
times, and I think part of your deliberation has to
be you have to weigh the issue, that is it important
to have some information even though it is not
perfect science, and that is your decision that one
has to make. Page 97: Ming Wang, “put something in
the PMA so the FDA shows concerns about
accountability of THIS study and need for a better
study to be done. Page 97, Dr. Ferris: “I have
heard advertisements suggesting that there are no
side effects to laser and I take it that if this was
approved and there are documented levels of side
effects that those advertisements would no longer be
appropriate. So, I think we have to be careful about
going too far in the other direction and trashing
this because there is a public health implication of
saying nothing, and if we defer saying something the
only comment I would have is that my concern is that
I don't know what the complication rate truly is
lurking out there. Page 111: ‘the doctor left the
clinic and the clinic was shut down.” Why would a
good LASIK doctor/clinic shut down unless they had
really bad results? Page 113-118: “20% complained
of worsening glare, 26% of patients were complaining
of Halos and 26% complaining of fluctuating
vision.” Page 121: Wang: “Specifically regarding
halo, we know that clinically the halo experience
after LASIK tends to be more visually significant
and affecting the quality of vision than halos that
occur naturally in patients without ever having
surgery.” Page 122, Dr. Casebeer/Dr. McCulley:
“pupil size important?” Basically, they didn’t
research this it appears. (No wonder Dean Kantis
with 10mm pupils is so miserable daily especially at
night). Suggestion was made to randomly sample 20%
of patients, and it was quickly shot down by Dr.
McCulley saying: “I don't think we care whether they
do if we think that is appropriate. It may be a
very good suggestion, but whether they think that
they can do it or not or it is appropriate on their
part is not relevant. We decide.” Page 124: “only
one microkeratome shaper (Chiron ACS) was used for
this study, but many are out there.” Dr. Casebeer
confirmed this. Page 126: “DR. LEPRI: Mr.
Chairman, there is one point I would like to address
one of the questions regarding the labeling in pupil
size. The current VISX labeling states that
astigmatic patients between the ages of 21 and 30
should be reminded that due to their larger pupils
they are more likely than the over 30-year-old
population to experience a degradation in visual
performance under these conditions.” Page 127:
Dr. Mannis: “When I came to the meeting I didn't
feel as uncertain about the missing 43 percent as it
were as I do now, and I would like to recommend that
the obstacles notwithstanding that the sponsor turn
back to its cohort and try to provide us with
additional follow-up data.” Up to Page 134, they
still don’t have an answer to the “patients done as
a Non PMA” and wanted answers suggesting “to contact
both the patients and the doctors, and that this is
vital missing data.” So, they moved on to the next
question. Page 135: “PARTICIPANT; In the guidance
document it is 1 year, 90 percent at 1 year. I mean
is that what you are getting at? DR. MC CULLEY:
No, that has been clarified at another meeting
before. I thought the same thing, but the way it
reads and it was Morris that corrected it, it was
that stability at two points 3 months apart.” (this
decision by Morris, made the standard of care much
lower in my opinion). (again, who made any of these
guys GOD even thinking there is stability at 3, 6 or
12 months with the human eye??) Page 140: “In
addition there are other treatment modalities out
there even outside of spectacles to correct these
patients and this doesn't mean that they cannot have
LASIK, but I am not sure that we should approve the
higher range based on the information that we have
now. We can get around this with appropriate
informed consent. DR. MC CULLEY: What we decided
before when we discussed whether to add specifics to
the guidance document for the higher ranges is that
we would not try to create artificial numbers but
take into consideration our realization and the
reality that those patients typically do less well,
and we would make a judgment as to what the
performance was whether it was acceptable or not.
So, we left it soft so that we would bring judgment
to it and did not change the guidance but with the
understanding that those patients would typically
not respond as well as the lower ranges. Up to page
153, they talk about the “labeling ranges that
should set the standard of care.”
Page 155: “DR. SUGAR: I
would like to add that there be a statement
concerning the possible adverse effect of pupil size
on patient's symptoms and that this be taken into
account and this be placed both in the patient
brochure and the physician labeling.
DR. MC CULLEY:
Okay, and Dr. Bullimore you had, we had a couple
that you were scribing. Dr. Matoba had one, and then
we had one other that brought product labeling in
line. You didn't write it, huh? Okay, he will
write it this time, Alice.
DR. MATOBA: My
suggestion was that the labeling be modified to be
consistent with the exclusion criteria that were
used for the clinical trial, specifically previous
intraocular procedures, surgery. Patients with that
indication were excluded.
DR. MC CULLEY:
Why?
DR. MATOBA: I
don't know why, but I think that there should be a
warning. It shouldn't necessarily be an exclusion
criterion in the labeling, but it should be a
caution that this procedure was not investigated for
those subgroups.
DR. MC CULLEY:
And the why is you can blow the wound, but anyway
let us not. I should just shut up.
Dr. Wang?
DR. WANG: I
would like to suggest in the same paragraph Dr.
Sugar suggested adding a sentence saying that
cautionary statements such as for high range of
correction visually significant halo or glaring may
be present.
Page 156: Importance of
Pupil Size to have sufficient warnings in the
Labeling:
MS. MORRIS: Lynn Morris. I
wanted to be clear that pupil size was included. I
thought I heard the sponsor say that that wasn't
part of the study. They didn't collect that data.
DR. MC CULLEY:
That is correct. They did not study it, but the fact
that they did not study it does not alleviate our
concern that it might be an issue. So, we are saying
that we want that in.
MS. MORRIS: Oh,
no, I want you to assure me that that is going to be
in the labeling.
DR. MC CULLEY:
Yes, that was added.
Part Two: Coming Next….
Part 2:
Page 159: MS. MORRIS: Lynn
Morris. I wanted to be clear that pupil size was
included. I thought I heard the sponsor say that
that wasn't part of the study. They didn't collect
that data.
DR. MC CULLEY:
That is correct. They did not study it, but the fact
that they did not study it does not alleviate our
concern that it might be an issue. So, we are saying
that we want that in.
MS. MORRIS: Oh,
no, I want you to assure me that that is going to be
in the labeling.
DR. MC CULLEY:
Yes, that was added.
Page 275: DR. WANG: I
think my answer is yes. In particular, the
treatment is circular. The fact we are going to use
65 percent against-the-rule, I'm just wondering if
that is suggesting in any way a weakening of the
cornea. Again, the context of examining refractive
stability. So the answer is yes.
DR. MC CULLEY:
Next question.
DR. EYDELMAN:
Question 5, visual symptoms data reveal photophobia
and double vision to be the symptoms with the
greatest change from pre-operative levels. Do
increases in these visual symptoms constitute a
safety concern?
(symptoms, they meant to
say: AE/Complications correct?)
DR. MACSAI:
Well, it seems the sponsor has tried to address this
by questioning these patients with a phone
questionnaire. But it's my understanding that this
data wasn't submitted for FDA review, the
tabulations. Were they, of the phone questionnaire,
or weren't they?
DR. EYDELMAN:
The summary of this was submitted.
DR. MACSAI:
Sorry. Got it.
(great, they couldn’t reach
people via phone so they rounded it up again, saying
LASIK was safer than it really is).
DR. EYDELMAN: What was not
submitted was the information on the updated
cohort. But the phone questionnaire, the original
was submitted.
DR. MACSAI: The
original, but not the updated.
DR. MC CULLEY:
Again, if we're going the route that we're going,
which is requesting more, it's a moot point; 5b.
DR. EYDELMAN:
Is the analysis of the updated patient questionnaire
necessary prior to making a recommendation regarding
approvability of this device?
DR. MACSAI:
Yes.
DR. GRIMMETT:
It seems to redundant to me to the last question.
Didn't we just agree that we would like the updated
questionnaire information? So certainly we would
like that information on the review.
DR. MC CULLEY:
Next question.
Page 276:
DR. JURKUS: I am also
wondering if a more detailed analysis about
near-front acuity would be available.
DR. MACSAI: I
would like to expand on Dr. Higginbotham's request
for gender analysis in that this is the patient
population at high risk for dry eyes and
keratoconjunctivitis and that may have an influence
on the efficacy of the laser. So if they could make
an analysis of that as a barrier.
DR. PULIDO: I'd
like to thank again the sponsor for supplying, one,
good accountability, and number two a good data set
from which we could see the strengths and
weaknesses.
DR. FERRIS: I'd
like to follow-up on something Dr. Wang said. That
is although I know we are not going to rewrite the
guidance document, I'm concerned if the data at two
years is showing a decrease, whether at least with
the other laser system we have asked about
documenting stability, and so I worry that we may or
may not find two years to be the endpoint.
At some point
you need to go until you document stability, or at
least it would seem to me that I would I might know
about stability, because my patients would probably
want to know more than a two year effect. Is it
going to level off or is it not. If hasn't leveled
off, I think there may be concern bringing it back
here.
DR. MC CULLEY:
So what one would say if we were writing the
guidance document would be minimum of two years for
a new device, assuming that stability is
demonstrated at two years?
DR. PULIDO: And
stability being what?
DR. MC CULLEY:
It would have to be redefined for this group, as has
been pointed out. That would be to be determined in
the guidance. We don't have that.
DR. PULIDO:
Shouldn't we tell the sponsor what we would like for
stability, since we were asking for long-term
results now? We need to be able to help them in
that regard. What will we be happy with?
DR. MC CULLEY:
Dr. Grimmett or Dr. Bullimore, either one.
DR. BULLIMORE:
Primarily, I would like to see a little more data.
I mean it's very difficult to make decisions on
stability with so little data at the 24 months. I
reiterate my impression that at two years the
technique appears to be on the order of 50 percent
effective. I base that both on the cross-sectional
data that has been presented -- I'm sorry, the
longitudinal data that has been presented, but also
the pair-wise comparison, looking at the change in
the elegant integration of that data that was done
in various people's heads. I think that will remain
my primary concern.
Page 285-287: LOOK AT ALL
OF THE DOCTORS THAT WANTED TO “NOT APPROVE” THE
LASER and showed concern about the studies saying
more “info was needed, not just that 90% of patients
attained 20/20 while discrediting the symptoms which
should have been AE/Complications, also they all
showed concern that the LASIK results were
“temporary” and they set the labeling standard at
90% at 2 years. (NOT GOOD). Who in their right
mind would do LASIK if it only lasted 2 years and
then regressed?
DR. VAN METER: I voted not
approvable. I believe the device is reasonably
safe. I think the sponsors have shown that to my
satisfaction. I have questions about the efficacy
because the instability of the refraction and the
regression.
The last table
that was shown showed seemingly stability had
percent of patients in the Y axis. And it would be
more helpful to have the actual refraction data,
ideally a cycloplegic refraction data, and show that
to be stable, rather than have a percentage of
patients that is 20/20.
DR. MACSAI: I
voted not approvable. This is a new refractive
laser. Despite the fact that the sponsor has done a
great job in providing data in an organized,
reviewable manner, it is just too soon to tell. The
data reviewed to date demonstrates refractive drift
and decreased efficacy over time. There is an
increase in astigmatism with a progressive axis
shift. Analysis of the total hyperopia as measured
by cycloplegic refraction will determine the true
efficacy of this procedure, and with further
follow-up we will be able to better determine the
safety and efficacy.
DR. JURKUS: I
voted not approvable for the same reasons that have
been indicated.
DR.
HIGGINBOTHAM: I voted not approvable considering I
think the need for additional follow-up as evidenced
by the increasing symptoms that patients are
complaining about, as well as the lack of refractive
stability long-term. I think we really do need to
see what happens with these patients over time.
DR. PULIDO: I
voted not approvable, again because I think not so
much the safety data, but the effectiveness data.
We need to have longer-term results to make sure
we're not putting out to the American public, a new
technique that is not stable over the long run.
DR. SUGAR: I
voted not approvable. I believe the procedure is
safe. I believe that the effectiveness is
disappointing and further data will either confirm
or refute that. I disagree with the 90 percent
requirement. I don't think that that is realistic,
but otherwise I agree with the vote.
DR. BULLIMORE:
I voted not approvable. While I will accept that
the device is reasonably safe, the efficacy data is
somewhat disappointing. I believe that both sponsor
and reviewers and indeed FDA have been hampered by
the lack of a guidance document, but nonetheless one
can apply some common sense to this data and look at
the degree of change that has been attempted, and
place the actual achieved change at different time
intervals in the context of what is being
attempted. Based on that, I don't think that the
sponsor has to date demonstrated efficacy.
DR. GRIMMETT:
The average consumer will likely want more than a
temporary refractive effect. Since there is a
paucity of reliable, long-term data that cannot
reasonably substantiate critical stability issues, I
voted that the PMA is not approvable primarily due
to effectiveness issues. I do believe the PMA shows
that the procedure is reasonably safe.
DR. MATOBA: I
voted that this procedure is not approvable for
reasons elucidated by Dr. Grimmett and Dr. Macsai.
I also agree with Dr. Sugar's comments regarding the
accountability.
DR. MANNIS: I
voted not approval primarily based on lack of
demonstration of efficacy.
DR. WANG: I voted for not
approvable. I do want to share the sentiment. As a
refractive surgeon there is a need of the American
public to have refractive surgical procedures
offered to them in a timely manner, with good
conscious consideration of all parameters. This
study is well conducted. It does fit the myopic
guidance document, however, it's not approvable
based on our discussion. This heightens further the
need of FDA to come up with specific guidance
document for the correction of hyperopia, since it
is a different animal.
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