After a difficult year for the Huntington’s disease cause, CHDI chief scientist feels ‘reinvigorated’ and ‘optimistic’ about quest for therapies

 

Having faced negative results in two key clinical trials a year ago while battling the coronavirus pandemic, the Huntington’s disease community has renewed the quest for therapies (treatments).

 

A vital sign of this: despite initial fears about the omicron variant of COVID-19, the 17th Annual HD Therapeutics Conference took place ­from February 28-March 3 at the Parker Palm Springs hotel in Palm Springs, CA. The 305 fully vaccinated attendees gathered under a massive tent, which allowed social distancing and provided good ventilation.

 

Shortly after the March 2020 conference, much of the world went on lockdown to avoid the ravages of the virus, pushing the 2021 conference online.

 

“I don't think it's hyperbole to say that coming here for this conference in person feels like a rebirth,” said Robert Pacifici, Ph.D., in a half-hour interview with me on March 4. “It's been a hard couple of years for everybody, but for the Huntington's disease community in particular.”

 

Dr. Pacifici is the chief scientific officer of the conference sponsor, CHDI Foundation, the nonprofit virtual biotech entity geared solely towards finding HD therapies. CHDI is the largest private funder of HD research.

 

In March 2021, the community “learned that two of the really well thought-out and very rational clinical trials for Huntington's disease had been halted and it dashed a lot of people's hopes,” recalled Dr. Pacifici, referring to GENERATION HD1, the largest clinical trial in HD history, run by Roche, and two smaller trials with a similar drug run by Wave Life Sciences.

 

Those results “must have been devastating” for people awaiting an “efficacious treatment,” Dr. Pacifici continued. “But we do what the Huntington's community always does: we persevere, we lift ourselves up by our bootstraps, and we go forward.”

 

Witnessing a “bunch of reasons” for hope about therapies at the conference, Dr. Pacifici declared, “I'm reinvigorated and very optimistic.”

 

For an overview of the conference and my interview with Dr. Pacifici, watch the video below.

 

 

Above, HD Therapeutics Conference attendees view scientific posters presenting new research, and, below, watch one of the many presentations at the four-day event (photos by Gene Veritas, aka Kenneth P. Serbin).

 

 

Learning from last year’s setbacks

 

At the Therapeutics Conference, Roche elaborated on new data from GENERATION HD1 and its plans to develop an improved clinical trial. Wave provided an update on its new early-stage trial, SELECT-HD.

 

Both firms use gene silencing drugs to attempt to reduce the amount of the toxic huntingtin protein in the brain (called huntingtin lowering). Both seek to build on the lessons learned from the 2021 setbacks.  (Click here to read about Roche’s recent announcement and here about Wave’s new trial.)

 

“I'm heartened that there's still a lot of enthusiasm for the huntingtin-lowering approach,” Dr. Pacifici observed. “There's actually a very impressive portfolio of other companies, therapeutic modalities, and approaches to huntingtin-lowering.”

 

Other plans to attack the mutant protein

 

PTC Therapeutics and Novartis Pharmaceuticals presented updates on their respective ongoing clinical trials using different huntingtin-lowering approaches. Whereas Roche and Wave drugs were administered via an uncomfortable spinal tap done at a clinic, PTC and Novartis use so-called small molecules: pills.

 

Besides the obvious convenience, such small-molecule drugs offer other key advantages, Dr. Pacifici explained.

 

“We know that mutant huntingtin is expressed everywhere [in the body] and so it’s good to know that you can lower it everywhere with a small molecule,” he said, noting that dosages can then be calibrated to achieve different lowering effects.

 

A higher dose creates more lowering, while a lower dose lessens it, Dr. Pacifici explained.

 

“From a safety perspective, if we ever found a long-term problem with huntingtin lowering, you can stop taking the compound and let the huntingtin come back so that then you can decide,” he continued, referring to a practice called picket-fence dosing, in which patients stop and restart dosing as needed.

 

Triplet gears up to test its approach

 

With no guarantee that reducing the toxic protein will result in an effective treatment, the Huntington’s field has purposefully diversified.

 

A key example is the work of Triplet Therapeutics. Triplet focuses on somatic expansion (also known as somatic instability), the tendency in HD of the already expanded (and therefore mutant) huntingtin gene to continue growing in length with age. The greater the expansion, the earlier the impact of the mutation on brain cells. This process is governed by recently discovered modifier genes that slow or hasten disease onset. (Click here and here to read more.)

 

“That's what actually causes the cells to malfunction, to die, and eventually leads to the underlying physiology of Huntington's,” Dr. Pacifici said. “So, not surprisingly, that gives us another therapeutic handle. Can we slow down that somatic instability?”

 

At the conference, two Triplet scientists presented a preliminary analysis of data from SHIELD-HD, a research study of 70 presymptomatic and early-disease-stage carriers of the HD mutation. SHIELD-HD is furnishing data for a clinical trial of Triplet's drug candidate, TTX-3360, aimed at blocking somatic expansion and, therefore, potentially delaying or avoiding HD onset.

 

Triplet Therapeutics scientists Irina Antonijevic, M.D., Ph.D., the chief medical officer (right), and Peter Bialek, Ph.D., senior director of translational science, after their presentation at the HD Therapeutics Conference (photo by Gene Veritas)

 

Founded in 2018, Triplet has used the science of somatic expansion and HD modifier genes to move with “record-breaking speed” towards a clinical trial, Dr. Pacifici said.

 

In a brief interview after the Triplet presentation, Irina Antonijevic, M.D., Ph.D., the company’s chief medical officer, confirmed that it will file a Clinical Trial Application this summer for permission to start a Phase 1 dose escalation clinical trial of TTX-3360, mainly to test safety and tolerability. Regulatory agencies can take a few months to review the application, after which the firm could start recruiting people with HD.

 

“We’re very excited,” Dr. Pacifici said. “The whole area of somatic instability is a great complement to huntingtin lowering. It's possible that eventually, if God forbid, huntingtin lowering turns out not to be viable, we've got a great backup plan. But even if it is, these things could actually synergize with each other. I could imagine people in the future being treated with a combination of therapies that address both of these things – lowering the huntingtin protein, but also preventing additional somatic instability.”

 

A future article will explore the SHIELD-HD presentation and Triplet’s clinical trial plans.

 

The value of family participation

 

Most of the conference presentations focused on human data, as opposed to research in animals. Dr. Pacifici pointed out that many advances in HD research result from the participation of thousands of gene carriers in studies and clinical trials.

 

“I appreciate that families are willing to give their time, their blood, their urine, and the travel, the poking, the prodding they're going through,” Dr. Pacifici said. “I want to express my heartfelt gratitude. This year, more than ever, I guess I'm happy to say I told you so, meaning that I always encourage people to participate and we're now seeing the fruits of that participation. We now have the evidence that those samples are being used judiciously and are providing unparalleled value.”

 

Dr. Pacifici also pointed to the steadfast commitment of both scientists and families to HD research during the pandemic, which “required people taking risk and going into the clinics and the labs.”

 

“Hang in there, be resilient, participate when you can,” Dr. Pacifici concluded, because a “really talented, committed global group of passionate drug discovery professionals would love nothing more than to deliver what you need so desperately, which are effective treatments for Huntington's disease.”

 

For my coverage of the start of the conference, click here.

 

For additional coverage, visit HDBuzz.

History, Huntington’s disease, and the survival of the human race

 

With thousands of people continuing to die from the COVID pandemic and the planetary climate crisis worsening, the Russian attack on Ukraine and the dictatorial Vladimir Putin’s threats of nuclear war have brought the world to a turning point.

 

Either we strive to end war or, by failing to unite globally to solve environmental and health challenges, we risk destroying ourselves. From biological history we know that millions of species have gone extinct. No one but us prevents our extinction, as well.

 

The war has produced searing images of Ukrainian families living underground or fleeing their country by the hundreds of thousands.

 

While the U.S., the North Atlantic Treaty Organization (NATO) countries, and many other key nations have sought to counteract Putin’s actions without sending in troops, around the world citizens and governments have protested and shown solidarity with the Ukrainian people.

 

As I drove yesterday from my home in San Diego to Palm Springs, CA, for the 17th Annual Huntington’s Disease Therapeutics Conference, I thought once again of how the quest for effective treatments for this devastating disease has embodied fortitude and collaboration.

 

Along the way I listened to The Tipping Point, the new, long-awaited album by Tears for Fears, one of my favorite bands, and pondered the poignant interview they gave about their album’s relevance to the present moment.

 

What I have termed the “Huntington’s disease movement” has highlighted caregiving, the alleviation of physical and mental suffering, and the harnessing of science for societal good.

 

These sentiments are especially appropriate at the start of the conference, February 28, Rare Disease Day.

HD Therapeutics Conference keynote speaker and journalist Charlotte Raven (seated) and, from left to right, Dr. Ed Wild, Charlotte's daughter Anna, and son John, February 28, 2022 (photo by Gene Veritas, aka Kenneth P. Serbin). Read more below about Charlotte's heartrending but brave presentation.

 

Writing the history of the HD movement

 

As an HD mutation carrier and advocate, I have shifted my focus as a professional historian from the country I consider my second home, Brazil, to the history of science, technology, and medicine.

 

On January 31, I submitted an application for a grant to support new research for a book to be titled “Racing Against the Genetic Clock: A History of the Huntington’s Disease Movement and the Challenges of the Biomedical Revolution.”

 

“Huntington’s disease research stands at the forefront of the biomedical revolution,” I wrote in the application. “The search for the huntingtin gene, finally achieved in 1993, contributed to the concept of the Human Genome Project. Huntingtin was one of the first disease-causing genes discovered. Yet, thirty years later, the experience of living with Huntington’s has not changed dramatically.”

 

In this project, building on my quarter-century of advocacy and tracking of scientific progress, I will seek to chronicle and interpret the HD movement in the period since the huntingtin breakthrough.

 

A visit with scholar Alice Wexler

 

To gather documentation and exchange ideas about the project, on February 21 I traveled to Santa Monica, CA, to meet with the preeminent historian of HD, Alice Wexler, Ph.D., the sister of Nancy Wexler, Ph.D., a key figure in the search for the huntingtin gene.

 

Alice Wexler wrote Mapping Fate, the key historical account about the discovery of the gene. She also authored The Woman Who Walked into the Sea, which describes the of development of medical understanding of HD in the 20th century and the stigma and discrimination associated with the disease.

 

In October, Columbia University Press will publish her latest work, The Analyst, a memoir of her late father Milton Wexler. A psychoanalyst, he founded the Hereditary Disease Foundation (HDF) in 1968 after his wife Leonore was diagnosed with HD.

 

Until the early 2000s, the HDF was the main private funder of HD science. From her personal archive, Dr. Wexler provided me with HDF newsletters, scientific reports, and other important documents.

 

Dr. Wexler also shared with me news clippings and other documents related to the HD movement.

 

Over lunch and then on a long walk along the Santa Monica beach, Dr. Wexler and I bonded over stories of our beloved Latin America (she, too, began her career studying that region), our families’ respective fights against HD, and my goal of building on her work as I embark on my new research.

 

Alice Wexler and Gene Veritas, aka Kenneth P. Serbin, in Santa Monica, CA, February 21, 2022 (personal photo)

 

My eleventh CHDI meeting

 

This will be my eleventh HD Therapeutics Conference, which is sponsored by CHDI Foundation, the nonprofit virtual biotech firm that grew out of the HDF and is dedicated solely to developing HD therapies. I keynoted the 2011 meeting. Because of the pandemic, the 2021 conference was held online. This year the conference will take place in person at its traditional location, the Parker Palm Springs, but under a tent on one of the hotel’s large lawns instead of inside.

 

As a pre-meeting reception on February 27 held by CHDI at the Villa Royale, I saw many veterans of the CHDI staff. I also spent time telling a new CHDI researcher staff member, who was attending her first Therapeutics Conference, about my family’s HD story.

 

I also conversed at length with Daniel Claassen, M.D., M.S., a professor of neurology at the Vanderbilt University Medical Center.

 

I was thrilled to hear Dr. Claassen describe his experience of lecturing via Zoom to about 150 Brazilian neurologists last year about Huntington’s disease, with the assistance of a Portuguese-speaking interpreter.

 

Fighting for human well-being

 

We also discussed the unique interpretations that each HD family can develop about the symptoms, especially in cases such as that involving my family, which had no prior knowledge of HD before it struck my mother.

 

I recalled for Dr. Claassen an especially painful moment from around Christmas of 1989. I had been doing research in Brazil for well over a year and was very happy to see my parents upon visiting their home in Ohio.

 

At one point, I heard my mother on the phone crying and complaining to a friend that she could not stand having me around.

 

At the time, I attributed her reaction to moodiness. In retrospect, as Dr. Claassen and I concluded, my mother’s reaction probably represented the start of the psychiatric and behavioral disorders that are often the first HD symptoms to appear.

 

My mother was diagnosed with HD six years later, in 1995.

 

“It wasn’t my mother’s fault!” I said with great sadness about her emotional difficulties.

 

At the Therapeutics conference, we will all be renewing our commitment to defeat HD and other neurodegenerative conditions.

 

For me, this is our contribution to human well-being.

 

 

Dr. Daniel Claassen (left) and Gene Veritas (photo by Simon Noble, Ph.D., director, scientific communications, CHDI)

 

Charlotte Raven, a brave keynote speaker

 

The conference got under way the evening of February 28 with a profoundly moving presentation by keynote speaker Charlotte Raven, a renowned British journalist, commentator, and author whose work has appeared in The Guardian, New Statesman, and Modern Review.

 

Charlotte is affected by HD. She was the first participant in the Roche GEN-PEAK trial, a small Phase 1 study run in tandem with the Roche Phase 3 GENERATION HD1 trial. These trials sought to measure the effects of the gene silencing drug tominersen.

 

In March 2021, Roche halted dosing in GENERATION HD1 because of lack of efficacy. In January, Roche announced that it will start a new, less ambitious Phase 2 trial to test tominersen’s efficacy (click here to read more).

 

Joined in the presentation by her son John, daughter Anna, and her neurologist, Ed Wild, M.D., Ph.D., Charlotte spoke bravely about her struggles with HD. She echoed the deep sadness and frustration of the HD community in the wake of the March 2021 news.

 

With many of the nearly 300 conference participants crying at the end, Charlotte received a standing ovation.

 

Roche will present two reports on its efforts on the conference’s final day, March 3.

 

A future article will feature Charlotte’s story, including a video of her keynote.

 

Assisted by son John, Charlotte delivers her keynote address (photo by Gene Veritas).

After setback, Roche to run new clinical trial with Huntington’s disease gene silencing drug

 

After halting dosing in the historic Phase 3 clinical trial for its Huntington’s disease gene silencing drug tominersen last March, pharmaceutical giant Roche announced today that it will start a new, less ambitious Phase 2 trial, limited to younger adult patients with “less disease burden.” The goal is to measure tominersen’s efficacy against the progression of HD.

 

Disease burden is calculated using a person’s age and degree of genetic mutation: the higher the sum of those two factors, the higher the burden. Roche, after initial testing of the drug, skipped Phase 2, which typically tests safety and efficacy of different doses, to pursue a Phase 3 trial, which confirms safety and efficacy in a larger population. Now it is proceeding in a more typical manner.

 

Roche informed the global HD community about the new trial in a letter released today. Roche’s partner Ionis Pharmaceuticals, Inc., the original developer of tominersen, also issued a press release.

 

“New exploratory post hoc analyses of GENERATION HD1 suggest that low exposure (less frequent dosing) tominersen may benefit younger adult patients with lower disease burden,” the Roche letter stated.

 

 

Low dosing meant volunteers received the drug every 16 weeks, while high dosing was every eight weeks.

 

“These findings, together with safety data of low exposure tominersen, support the continuation of the development program with a new Phase II clinical trial in younger adult patients with lower disease burden,” the letter continued. “While the findings are encouraging, confirmation in a randomised, placebo-controlled study is important.”

 

Post hoc analyses involve criteria set after data is seen, and “therefore they are not definitive,” the letter said. Because the trial was not specifically designed to run these analyses, the number of patients in the subgroups are small and the differences to placebo are not "statistically significant" and "could represent a chance result."

 

Even so, “these findings are promising and warrant a new study designed to test tominersen in this specific patient group,” stated Frank Bennett, Ph.D., Ionis' executive vice president, chief

scientific officer and franchise leader for neurological programs, in the press release. “This is an encouraging development for the HD community. We and Roche are grateful to the HD community's continued partnership, which has led to these important insights and a new scientific hypothesis [about tominersen].”

 

Maximizing benefits for HD patients

 

“It’s very exciting,” said Jody Corey-Bloom, M.D., Ph.D., the director of the Huntington’s Disease Society of America (HDSA) Center of Excellence at the University of California San Diego.

 

One of the GENERATION HD1 trial investigators, Dr. Corey-Bloom participated in a Roche-sponsored videoconference about the GENERATION HD1 findings that are serving as the basis for plans for a Phase 2 trial.

 

“They’ve analyzed the data in a very thoughtful manner,” Dr. Corey-Bloom said. “They’re hoping to really maximize benefits for at least a specific group of patients with HD, based on the results of their post hoc analysis.”

 

Roche is still planning the new trial. Therefore, it has not yet announced a timeline, sites, eligibility criteria, or information about dosing.

 

“This is just the news that should instill hope – a clear demonstration of the researchers’ commitment to regroup, redirect, and bravely move forward with its work on tominersen even after the challenges of 2021,” Martha Nance, M.D., the Center of Excellence director at Hennepin Health Care in Minneapolis, MN, commented by e-mail. “HD families, research scientists, and clinicians will need to work together in the coming years to determine when, whether, and how this drug can be delivered safely, effectively, and ethically to people in the earliest stages of HD.”

 

Representatives of Roche will present public updates on tominersen in previously scheduled webinars on January 20 for the European Huntington’s Disease Network (click here to register) and HDSA (click here to register). Another webinar, hosted by the European Huntington Association, will take place on January 24 (click here to register).

 

Roche is “resurrecting” tominersen in the “right way,” wrote Evaluate Vantage biopharma analyst Madeleine Armstrong. “Instead of running another phase 3, or indeed seeking approval, Roche is now going back to phase 2, although details are scant.”

 

With “no approved therapies for Huntington’s,” Roche “looks justified in trying again,” she added.

 

More results at upcoming conference

 

In an initial trial completed in 2017, Ionis had demonstrated that tominersen had successfully lowered the amount of the mutant, purportedly toxic huntingtin protein in the cerebral spinal fluid of a small group of volunteers.

 

Those impressive results led Roche to skip the standard Phase 2 trial and enter directly into Phase 3 (click here to read more). The GENERATION HD1 trial started in early 2019, enrolled a total of around 800 participants globally, and was to end in 2022.

 

However, in March 2021 a monitoring board conducting a standard review of trial data recommended that all dosing of tominersen in GENERATION HD1 be stopped. Roche decided to also stop dosing in a supporting trial. The following month Roche confirmed that trial data indicated that tominersen was ineffective and, in some cases, actually caused volunteers to worsen.

 

Roche is expected to present a detailed scientific update on tominersen at the 17th Annual HD Therapeutics Conference February 28-March 3 in Palm Springs, CA.

 

(Disclosure: I hold a symbolic amount of Ionis shares.)

Huntington’s disease advocates, scientists generate hope after a difficult year in the search for treatments

 

In one of the most difficult years emotionally in the fight to conquer Huntington’s disease, advocates, scientists, and HD-affected individuals have generated hope as 2021 draws to a close.

 

The “heartbreaking” news in March about the disappointing results of the greatly anticipated Roche and Wave Life Sciences clinical trials was compounded by the devastating, ongoing coronavirus pandemic.

 

Last year at this time, leading global HD advocate Charles Sabine, a British former international correspondent for NBC-TV, launched his inspiring film Dancing at the Vatican, about Pope Francis’ embrace of the global HD community, on YouTube.

 

Like the pope’s 2017 special audience with the HD community in Rome, Dancing at the Vatican brought great hope and joy.

 

Now Sabine has just released another heartening film, Hoping Machine, a 60-minute documentary that, he says, “encapsulates many core principles” of the pope’s declaration that it is time for HD to be “hidden no more”: the “corrosive nature of denial and hidden secrets” and the “empowerment that springs from knowledge, understanding, collaboration and community.”

 

“I truly believe Hoping Machine offers the most important perspective that anyone involved in HD right now – researchers, clinicians or families – could hear,” Sabine wrote me by e-mail.

 

You can watch Hoping Machine for free by clicking on this link.

 

Powerful HD journeys

 

Hoping Machine takes its title from the song by American folk music giant Woody Guthrie, who died from HD in 1967, the year his former wife Marjorie founded the Huntington’s Disease Society of America (HDSA).

 

The film depicts the gripping recollections of HD family members, and also several scientists, of their experiences as keynote speakers at what I have called the “Super Bowl” of HD research, the annual Huntington’s Disease Therapeutics Conference. Beginning in 2006, the conferences are sponsored by CHDI Foundation, Inc., the abundantly funded, nonprofit virtual biotech aimed solely at developing HD therapies.

 

These speakers have all told powerful stories about their HD journeys, including using the keynote to go public about their HD status for the first time (my case in 2011) and exploring the most intimate and difficult aspects of life with HD.

 

Inspired by the scientists’ dedication

 

They have also sought to both inspire and thank the scientists.

 

“Here I am, affected by Huntington's disease, and I'm relying on all of you guys, all of the scientists, everybody working in the HD community,” keynoter Amy Merkel recalled of her talk in Palm Springs, CA, in February 2020. “I'm relying on you for life.”

 

Sometimes, when she has experienced symptoms, “I just kinda wanted to crawl under the covers and stop trying,” Merkel continued. “That speech and that time in Palm Springs kind of lifted me a little. You can do this.”

 

A licensed practical nurse, Merkel had abandoned her “dream” of becoming a registered nurse (RN) “because I knew I was gene-positive” for HD, she said. However, “the advances that all of the scientists have made in Huntington’s research” convinced her to study to become an RN.

 

Amy achieved her goal: "I'm a registered nurse, and I currently am working as a sexual abuse nurse examiner in southern Arizona."

 

 

Amy Merkel poses with researchers Dr. Sarah Tabrizi (far left), Leslie Thompson, Ph.D. (second from right), and Gillian Bates, Ph.D. (far right), at the 15th HD Therapeutics Conference, held in in Palm Springs, CA, February 2020 (photo by Gene Veritas, aka Kenneth P. Serbin).

 

Good news from the KINECT-HD trial

 

Another glimmer of hope – and a sign that HD science marches on – came on December 7 with the release of “positive” data from the KINECT-HD phase 3 clinical trial to test the efficacy, safety, and tolerability of Neurocrine Biosciences’ drug valbenazine. The initial trial data demonstrated that valbenazine, as intended, reduced chorea, the involuntary, dance-like movements that are the principal motor symptom of HD.

 

Marketed by San Diego-based Neurocrine as Ingrezza and already approved by the U.S. Food and Drug Administration (FDA) for the neurological disorder tardive dyskinesia, valbenazine is the same type of drug as the two other FDA-authorized drugs for chorea, Xenazine (2008) and Austedo (2017).

 

According to the Neuocrine press release, Ingrezza reduced the total motor score (a measure of the severity of chorea) by 3.2 points versus placebo in the trial participants.

 

This result was very close to reduction of the 2.5 points in Austedo and the 3.5 points in Xenazine.

 

As the release explained, the total motor score is part of the motor assessment of the research tool known as the Unified Huntington’s Disease Rating Scale (UHDRS®) and “measures chorea in seven different body parts, including the face, oral-buccal-lingual region, trunk and each limb independently.” The total motor score is the sum of the individual scores and ranges from 0 to 28.

 

Like Xenazine and Austedo, valbenazine is a VMAT2 inhibitor.

 

Initial data about Austedo (deutetrabenazine) indicated that patients “felt better” overall after taking this drug. In addition, Austedo requires only two daily doses, versus Xenazine’s three (click here to read more).

 

Ingrezza is even more convenient: the KINECT-HD trial used just one daily dose.

 

Critical: no suicidal behavior observed

 

Critically, and also in contrast with the other two drugs, “no suicidal behavior or worsening of suicidal ideation was observed in the valbenazine-treated subjects in this study,” the Neuocrine statement said.

 

Neocrine partnered in KINECT-HD with the Huntington Study Group (HSG), the leading HD clinical trial administrator and research platform. In a first for the HSG, KINECT-HD trial participants used wearable sensors for continuous monitoring of their movements and other biological functions, even at home. (Click here to read more.)

 

In 2022, after a complete review of the trial data, Neocrine will report its findings in greater detail at a medical conference, and it will submit the drug for FDA approval for use in HD.

 

“The positive results of the KINECT-HD study are very exciting for the HD community,” Jody Corey-Bloom, M.D., Ph.D., the director of the HDSA Center of Excellence at the University of California, San Diego, wrote me on e-mail. “Although valbenazine is not a disease-modifying therapy, it will clearly be a highly effective therapeutic option for one of the most common symptoms in HD – chorea.”

 

“Completing ANY clinical research trial successfully in the midst of the COVID-19 pandemic is cause for excitement, and a testament to the tenacity of HD patients, families, and research teams,” wrote Martha Nance, M.D., the Center of Excellence director at Hennepin Health Care in Minneapolis, MN. “The favorable results are not terribly surprising, since two other similar drugs have been approved previously – but they are certainly reassuring.”

 

Maintaining the commitment to patients

 

The “holy grail” for the HD field – and other neurological diseases – is a treatment that prevents people from ever developing symptoms.

 

Comparing Ingrezza’s success with this bigger challenge, Dr. Nance offered a partial explanation to what she described as a large and complex challenge.

 

“It only takes a few weeks or months to document that a drug reduces the severity of a symptom (chorea, depression, insomnia), but takes years to show that a drug is slowing the progression of a disease that progresses slowly over years,” she wrote. “We have not gained a toehold on slowing nerve cell loss in any of these conditions.”

 

However, because the scientists have advanced to attempting treatments aimed at the disease’s roots ­– DNA and RNA – “there is good reason to hope.”

 

“Building on the unsuccessful trials that were so disheartening to the global HD community earlier this year, I counted no fewer than thirteen companies moving towards clinical trials of DNA/RNA-directed treatments at our recent HSG research conference in November,” she noted.

 

Dr. Nance wrote that we should be “thrilled” that 2021 has ended on a favorable research result and “maintain our commitment to work together to find better treatments for the HD patients of the future.”

A proud Huntington’s disease gene carrier’s message to his ‘miracle baby’ daughter on her senior year in college

 

When I tested positive for the Huntington’s disease genetic mutation in 1999, at 39, I was convinced I was doomed to repeat my HD-stricken mother’s onset of symptoms in her late 40s.

 

I had tested because my wife Regina and I wanted to plan for children, who, if I had the mutation, would also have a 50-50 chance of inheriting it.

 

We decided to have a child before the availability of preimplantation genetic diagnosis (PGD), which involves in vitro fertilization of embryos without the mutation. So, we had our daughter Bianca tested in the womb. Her negative result in early 2000 was one of the happiest moments of our life. She was our “miracle baby.”

 

Now, 21 years later, Bianca has started her senior year at the University of Pennsylvania, where she is finishing a U.S. history honors thesis. She has flourished in her classes and successfully taken on several leadership roles.

 

Bianca understood from about the age of two that her grandmother was ill with a genetic disease. HD transformed my mother into a mere physical and mental shadow of herself, taking her life at 68 in 2006. Four years later, when Bianca was 9, she learned that I, too, was at risk but that she was not.

 

I have been extremely lucky. I am almost 62 and was found to have no HD symptoms at my recent annual neurological checkup. I have perhaps benefited from the positive action of modifier genes and a far greater opportunity than my mother had – we had never heard of HD prior to her diagnosis – to prepare for the disease.

 

As Bianca navigates the challenges of senior year and prepares for post-college life, I want to provide her with a message of hope, challenge, and some of the wisdom I have picked up along my own life’s journey, including our family’s struggle against Huntington’s. My letter to Bianca follows after the photo below.

 

Regina Serbin (left), Gene Veritas (aka Kenneth P. Serbin), and Bianca Serbin at the Edge sky deck during a visit to New York City in August 2021 to celebrate Bianca's 21st birthday (photo by Devon Riley)

 

Dearest Bianca,

 

When you graduate next May, you and your classmates will come of age at a time of immense challenges.

 

I am impressed with how you (and so many other students of all levels) have shown great fortitude and flexibility when forced into the new reality of online learning and social distancing during the monumental disruptions of the COVID-19 crisis.

 

I was happy to see that this semester Penn has moved students back into the classroom, allowing you to recover some of the lost joy of the college years.

 

With the rapid development of highly effective RNA-based vaccines, many of us are reaping the fruits of the biotechnological breakthroughs of our era. Researchers are also exploring a variety of such genetics-based approaches as potential Huntington’s treatments. Because many of these advances promise to change our very nature, they will pose ethical dilemmas.

 

Our family has lived this in the flesh. The biomedical revolution made it possible for you to know your life will be free of Huntington’s. However, as you have learned, being HD-free does not mean being challenge-free. Far from it!

 

But the freedom from HD has enabled you to plan a life in which you can strive for academic and professional excellence, and to develop your personal qualities.

 

As you venture forth, remember always that you’re not going it alone. You can rely on others, just as you should be available to support others. Life is a collective endeavor, as our family has learned so well from the fight against HD. As I always tell people dealing with the initial shock of discovering Huntington’s in their families, “together we will beat this disease!”

 

In your drive for personal success, cherish the preciousness of time, as I have learned to do in confronting the fears of HD. Use ambition to push ahead, but don’t let it dominate your inner good. Always make time for family and friends.

 

Take time to meditate and cultivate your spirituality, because I believe that we all have such a dimension, independent of any belief system or organized religion. As you have done at Penn, find ways in your life to connect to something larger than you.

 

Bianca, I’m elated with how we have come to share many passions: for writing, the study of history, historical movies (especially war films), music, our dog Lenny, and our family.

 

Because of HD, your grandmother could barely hold you as a baby. Your “HD warrior” caregiver grandfather loved you deeply. I wish they could have shared your college years.

 

I have not wanted you to worry about me getting HD, which is a major reason that I have strived so hard to maintain good health – and to support the search for treatments that could save me from HD’s inevitable though often unpredictable symptoms.

 

You and Mom have joined me at Hope Walks and other fundraisers, and in 2017 you gave up the chance to attend your junior prom to take part in Pope Francis’ special audience with the HD community in Rome. I so deeply appreciated having you by my side during that breathtaking moment.

 

I am thrilled and thankful to have the clarity of mind to enjoy your progress towards graduation. You have made me deeply proud.

 

Because of our and so many other families’ dedication to the HD cause, and also thanks to the researchers, I remain ever hopeful for an HD treatment in my lifetime. If that moment comes, I know that no matter where you are geographically and professionally, we will celebrate with tears of joy.

 

I hope HD strikes me minimally and very late in life, as I have seen in some cases. Together our family has seen many people with HD fight tremendously to overcome the disease, and their caregivers devote every ounce of strength. As it has throughout our journey, the hope for both my good health and the arrival of treatments will continue to sustain us ­– even beyond the start of any symptoms that might occur.

 

No matter what difficulty, please remember that I have always treasured our great moments together and watching you grow as a person.

 

No one knows what tomorrow will bring. In this moment, let’s cherish the positive, including the fact that you, Mom, and I are healthy. As your senior year progresses, I want to celebrate our joy together as you prepare to graduate.

 

Raising you has brought Mom and me greater meaning and purpose – and, above all, lots of love to share.

 

Healthy and ambitious, you are poised, with your generation, to leave your mark on the world.

 

Congratulations on your senior year! Enjoy the ride!

 

Love,

 

Dad

 

 

 

The Serbin Family Team of the Huntington's Disease Society of America San Diego Chapter's  2014 Hope Walk: from left to right, Dory Bertics, Bianca Serbin, Jane Rappoport, Gary Boggs, Yi Sun, Kenneth Serbin, Regina Serbin, and Allan Rappoport (photo by Bob Walker)