The Huntington’s
disease community sent a powerful message to the U.S. Food and Drug Administration (FDA) at the September 22 meeting on HD patient-focused
drug development: the agency must do its utmost to facilitate clinical trials
and speed the search for effective treatments.
“We discovered the
gene – we don’t have a cure,”
declared Nancy Wexler, Ph.D., the famed researcher who initiated the
search for the huntingtin gene while watching her mother suffer and ultimately
die from HD. She addressed the panel of ten FDA officials and audience of some
200 HD family members and advocates at the agency’s headquarters in Silver
Spring, MD. “We did that [discovery] in 1993.”
Along with Wexler,
two panels of HD family members selected by the FDA to make presentations about
the disease and current lack of effective remedies, as well as other participants in the
unusually large meeting, described HD’s cruel devastation and the exhausting
burden for caregivers.
The Huntington’s Disease Society of America (HDSA), which advocated for the meeting under
the new requirements for patient feedback established by Congress for the FDA, sought to provide the FDA with a more tangible and comprehensive view
of HD’s reality, all too familiar to affected families.
The FDA doesn’t
conduct drug research, but its regulators must approve all clinical trials and
new drugs in the U.S.
The plethora of
symptoms
Many presenters and
audience commenters emphasized the plethora of cognitive, behavioral, and other
symptoms involved in HD in addition to chorea, the involuntary movements
traditionally but erroneously labeled the key diagnostic signifier of the
disease.
“I have all of the
symptoms that have nothing to do with chorea,” stated presenter Julie Rosling,
72, of Orange, CA. Forced to retire some ten years ago from her pharmacist job,
Julie participated on the five-person panel about the daily impact of HD.
I first met Julie
almost 20 years ago in San Diego at the local HD support group, several years
before I tested positive for the genetic defect that causes the disease. At
most meetings the group had three breakouts: for the affected, caregivers, and untested
individuals and asymptomatic gene carriers. Julie and I participated in this
last breakout group. Sharing our most intimate fears about HD, we became
friends.
I hadn’t seen Julie
in a few years. I had long admired her intelligence, profound knowledge of HD
science, and healthy lifestyle. My wife and I viewed Julie as a model for
avoiding HD and, once her symptoms started, for living with the disease. She
has late-onset HD, in contrast with most patients, who experience onset between
35 and 55.
From left to right, Frances Saldaña, Julie Rosling, Reed Rosling, and Gene Veritas (aka Kenneth P. Serbin) (photo courtesy of Frances)
‘I can’t play Chopin
anymore’
At the FDA meeting, I
was shocked and saddened to see how the disease had, as Julie put it in her presentation, greatly affected her demeanor.
“There are so many
different types of symptoms,” Julie said, adding that HD must no longer be seen
as just a brain disease. She described how she can no longer drive, suffers
from insomnia and gastrointestinal difficulties, and fears choking, a common
problem with HD.
“I fall all the time
when I go up and down the stairs,” she continued. “The thing that’s the most
important […] is that my symptoms are affecting every system in my body.”
Sadly, HD has robbed
Julie of many favorite activities. Each December, Julie, a painter, sent out
exquisitely designed holiday cards. Several years ago, she wrote in her holiday
card that she could no longer paint the cover for her cards.
Those beautiful cards
always brought me a glow of hope. I have missed them.
“I can’t play Chopin
on the piano anymore,” Julie said at the FDA. “I can’t walk to the corner and
back.”
HD has hampered her
social interaction, too, because of her slurred speech.
“My symptoms have
never gotten better,” Julie concluded. “They get worse every single day. I am a
living example of what this disease is all about.”
Once again, I had
looked into the genetic mirror and viewed my own highly probable future
decline.
You can watch Julie’s
presentation in the video below. To watch other presentations, click here to visit my video album of
the meeting.
FDA ‘blown away’ by
turnout
“I think it was a
very successful day,” said HDSA CEO Louise Vetter in an interview with me shortly
after the meeting. “I’m really pleased with how full the room was, not only
from the patient and community side, but also the FDA. They had a full docket
of folks who wanted to be in the meeting to listen to the HD community.[…]
There were more FDA staff in the room than is typical for a public hearing.”
The FDA’s level of
interest demonstrated its “commitment to paving the way for new therapies for
HD,” Vetter added. The FDA was “impressed” with the “urgency” and “commitment”
of the HD community.
“The FDA was blown
away,” she said, adding that the agency at the last minute had to set up a room
“three times larger than what they planned.”
Several dozen HD
community members participated in the hearing via webcast. In addition,
representatives attended from CHDI Foundation, Inc., the nonprofit
virtual biotech focused exclusively on the search for HD therapies, and the
pharmaceutical industry.
The HD hearing took
place in the morning, followed by a Parkinson’s disease meeting in the
afternoon. The FDA had initially combined HD and Parkinson’s concerns into a
single event, but HDSA convinced the agency to divide the meeting because of
significant differences in the two conditions and the different treatment
approaches, Vetter explained.
“We had more people
than Parkinson’s had planned, and given the difference in prevalence, the FDA
really took notice,” she said.
“I’m just so pleased
with how many caregivers and family members really came prepared to succinctly
share their stories and open up about the impact of the disease and their hopes
and wishes. I know that the FDA heard that.”
FDA regulators Leonard Kapcala, M.D. (above) and Peter Como, Ph.D., and Lei Xu, M.D., Ph.D. (below) watch presentations by HD advocates (photos by Gene Veritas)
Still time to submit
comments
HDSA requested the
hearing as soon as the Congressional mandate for patient-focused feedback to
the FDA went into effect in 2012. HDSA told the FDA that it could learn much
from HD as a genetic disease, given a clearly identified gene and a community
of affected families with a serious need for treatments, including preventative
remedies for presymptomatic gene carriers, Vetter noted. HDSA also
said HD could be a case study for understanding and treating other diseases.
In addition, HDSA
will submit to the FDA survey responses from 3,600 HD-affected individuals and
family members regarding the impact of symptoms and desired treatments, Vetter
noted in her public comments at the hearing.
The public can
provide further feedback to the FDA until November 23, 2015, by clicking here.
Several months after
the public comment period closes, the FDA will complete a “Voice of the Patient” report on HD, Vetter told me. HDSA will carefully review the report and provide
feedback.
You can watch Vetter
make her public comments in the video below.
Advocating for the
presymptomatic
During my brief
remarks (audience members got only two minutes per commentary), I told of my
mother’s demise, our daughter’s gene-negative status after testing in the womb,
and my luck at remaining presymptomatic at 55, well beyond the point where my
mother experienced many symptoms.
“I would like to see
a medication that prevents me from ever getting any kind of symptoms,” I said.
“There’s got to be a really open dialogue with the scientists on the new areas
such as gene-silencing.”
I referred to the
disappointment among HD advocates that the first gene-silencing clinical trial
for HD, by the Carlsbad, CA-based Isis Pharmaceuticals, Inc., is happening
outside the United States. (Phase I of the trial started in July in Europe and Canada; click here to
read more.) I remarked that some drug company executives
think the FDA too inflexible regarding new approaches. I urged the regulators
to consider the new biomarkers (signs of disease and drug efficacy) scientists
are seeking to measure in the blood, cerebrospinal fluid, and brain measured
with new techniques.
Many presymptomatic
people don’t get tested “because of the immense fear of the
disease and the fact that there are no treatments,” I added during the
final round of comments. “There’s
also associated with genetic testing and getting your results a lot of suicidal
tendencies.”
I recalled my
suicidal fantasies from the early years of my family’s struggle with HD, when I
saw my mother declining. Those ended after the birth of my daughter, I added.
“The presymptomatic
population out there really needs to be part of the conversation,” I urged.
The urgent need for
treatments
The FDA regulators,
unsurprisingly, offered little comment on the proceedings; they wanted to
listen and learn.
After returning home,
on September 25 I requested an interview to follow up on the above-mentioned
points, and more, including calls from families with juvenile HD patients for
JHD-specific approaches to clinical trials and treatments. I have not yet
received a response, but will write an update when I learn more.
However, HDSA CEO
Vetter recalled for me the nub of her conversation with William Dunn, M.D., a
neurologist and the FDA’s director of the Division of Neurology Products,
immediately after the meeting. Dr. Dunn had welcomed the participants at the
meeting’s start.
“He’s very committed
to this,” Vetter said, referring to the search for HD treatments. “He was very
impressed, very grateful for the input of the families, and very committed to
making sure that, as therapies move forward to FDA consideration, they will be
efficient in their review, that the FDA’s not sitting on anything. The last
thing they want to do is be accused of keeping something meaningful out of the
hands of families. They’re very committed to being very expeditious and
thorough.”
Along with many
fellow HD family members, I believe that the FDA gained a clearer understanding
of our community’s suffering and the urgent need for treatments.
* * *
For the FDA’s
recording of the meeting, click here.
Be sure to visit my video album for other perspectives expressed at the
hearing. For additional photos from the meeting, click here.
For the
perspective of Parkinson’s specialist Jeanne Loring, Ph.D., click here.
(Note: HDSA paid
for my travel to Silver Spring and a night of lodging. The views expressed in
this article are wholly mine.)
HD advocate Katie Moser (left), HDSA CEO Louise Vetter, and advocate Emma Burris (photo by Gene Veritas)