NovaBiotics Ltd (“NovaBiotics”) announces that its oral therapy for cystic fibrosis (CF), Lynovex®, has met the study objectives of the CARE CF 1 clinical trial.
CARE CF 1 assessed the effects of two weeks of Lynovex treatment as an adjunct to standard of care therapy (SOCT) in CF, compared to placebo plus SOCT. This trial was designed to determine whether the inclusion of Lynovex capsules alongside SOCT lessened the clinical impact of exacerbations in adults with CF, as measured by symptom severity and levels of bacteria and inflammatory mediators in sputum and blood. CARE CF 1 was a 6-arm study with the primary objectives of determining the optimal dose and regimen of Lynovex in patients with exacerbations of CF-associated lung disease and to further evaluate the safety and tolerability of Lynovex in exacerbating CF patients. Continue reading Positive Data from the CARE CF 1 Clinical Study of Oral Lynovex in Cystic Fibrosis Exacerbations
By Bradley J. Fikes
Vertex Pharmaceuticals opened its new San Diego research center Monday, starting a new chapter in a decades-long quest to not only treat but cure cystic fibrosis.
In 18 years, three drugs for the lung-ravaging disease have emerged from Vertex’s San Diego center and more are in the pipeline.
The first, Kalydeco, was approved in 2012. It is the first drug that treats the underlying cause of the disease. The second, Orkambi, was approved three years later. And the third, Symdeko, was approved in February.
These drugs can benefit about half of all patients with the incurable disease. In the next several years, Boston-based Vertex hopes its drugs can help nearly all patients live longer, healthier lives.
Cystic fibrosis is caused by a genetic defect that allows a buildup of thick mucus in the lungs, and other internal organs. This mucus clogs airways and promotes the growth of bacteria. The average lifespan of patients is 37 years, up from 20 years in 1980. Treatments include antibiotics to fight lung infections and mucus-thinning drugs.
The new 170,000 square-foot building on Torrey Pines Mesa more than doubles the company’s space. The center includes cell culturing equipment to grow lung cells from patients, to be used for drug screening. A 4,000 square-foot incubator suite will serve outside collaborators.
Asides from cystic fibrosis, the staff will work on other serious diseases.
Among the speakers Monday morning was a veteran in the fight against cystic fibrosis: Jennifer Ferguson, who has two children with the disease, Ashton and Lola. Both her children are taking Vertex drugs, and both were present with her at the event.
With these drugs and the promise of better therapies ahead, she says Ashton and Lola have a good chance of growing up and leading their own lives. She urged all Vertex employees to think of themselves as part of a team to cure the disease.
Ferguson, of San Diego, found out about the work from the Cystic Fibrosis Foundation. The foundation had invested $30 million in startup Aurora Biosciences to find therapies.
In 2001, Vertex purchased Aurora for $592 million in stock, the same year Ashton was diagnosed. The research went on under Vertex, and Ferguson became quite familiar with the research team.
“The Cystic Fibrosis Foundation asked me to come speak, to show them what it’s like to have a little child with CF,” she said. “So I came here about 17 years ago with him as a 6-month-old.”
At that time, many cystic fibrosis patients never reached adulthood.
“I had a hard time keeping it together,” Ferguson told the audience of that long-ago visit.
“But I looked in the staff’s faces — and some of you are still here — and I thought, I’m going to put my faith and trust in your hands, in your brains. And I was able to let go of my worry, because you were on the case.”
Ferguson started visiting every few years to check on what progress was being made, first with Ashton, and later including Lola. She also raises money for the Cystic Fibrosis Foundation.
Both her children have shown improvement since starting the Vertex drugs, Ferguson said. But they still need to go through a daily regimen of clearing out their lungs.
From medications, the research frontier has advanced to investigations into a cure. That means fixing the genetic defect, which can come in several variations, inside living patients.
That cure might come from the hot new gene editing technology called CRISR. In 2015, Vertex allied with startup CRISPR Therapeutics to develop curative therapies.
From The New York Times:
A Drug Costs $272,000 a Year. Not So Fast, Says New York State.
New York’s Medicaid program says Orkambi, a new drug to treat cystic fibrosis, is not worth the price. The case is being closely watched around the country.
By Katie Thomas
A wave of breakthrough drugs is transforming the medical world, offering hope for people with deadly diseases despite their dizzying price tags.
But what if it turns out that some of these expensive new drugs don’t work that well?
That’s the quandary over Orkambi, a drug that was approved in 2015 for cystic fibrosis and was only the second ever to address the underlying cause of the genetic disease. Orkambi, which is sold by Vertex Pharmaceuticals, costs $272,000 a year, but has been shown to only modestly help patients.
Now, in a case that is being closely watched around the country, New York state health officials have said Orkambi is not worth its price, and are demanding that Vertex give a steeper discount to the state’s Medicaid program. The case is the first test of a new law aimed at reining in skyrocketing drug costs in New York’s Medicaid program.
The high price of prescription drugs has ignited a populist furor, and in May, the Trump administration unveiled a set of proposals to address the issue. But while the ideas at the federal level are still mostly theoretical, some states have begun tackling the issue themselves. Earlier this year, Massachusetts asked the federal government for permission to limit its coverage of drugs in an effort to secure larger discounts from drug makers. Other states, like California and Vermont, have passed laws requiring drug companies to turn over certain financial details if they raise prices significantly.
“There’s a number of states that are really trying to push forward and say, we need to be thinking very differently about how we’re paying for drugs,” said Matt Salo, the executive director of the National Association of Medicaid Directors. “We need the ability to say that there are some drugs that are just not priced in a rational way.”
Orkambi held great promise for people with cystic fibrosis when it was approved three years ago. A similar drug, Kalydeco, approved in 2012, was viewed as groundbreaking because it was the first to try to counteract the genetic defect that causes cystic fibrosis. The disease, which affects about 30,000 Americans, leads to a buildup of sticky mucus in the lungs and can lead to death by respiratory failure by the time many people are 40.
But while Kalydeco, also known as ivacaftor, was found to be effective, it was only approved for a sliver of patients with the disease — those who had certain genetic mutations. Orkambi, which combines ivacaftor and another drug, lumacaftor, was approved for mutations that covered nearly half of cystic fibrosis patients, but studies showed it was not as effective as Kalydeco.
Since Orkambi’s approval, several countries have balked at paying for it, including Britain, France and Canada.
In the United States, private insurers and Medicare plans have generally covered Orkambi. Medicaid programs, which cover health insurance for the poor, are required to cover all drugs.
Still, many insurers require patients to pay thousands of dollars out of pocket, and even though Vertex offers assistance, not everyone qualifies.
Lora Moser, 40, is covered by Medicare because she is disabled, and said she had to stop taking Orkambi in January because she could not afford the first month’s payment of more than $3,000 required by her insurer, Humana. A spokeswoman for Humana said that for high-cost drugs like Orkambi, the insurer helps patients identify outside assistance programs to cover out-of-pocket costs.
A nonprofit group that had provided assistance the previous year to Ms. Moser declined to renew her grant because, she said she was told, her annual household income was too high. She said her income is about $600 above their limit.
“I’ve never felt more destitute and hopeless as I do right now, from a medical standpoint,” Ms. Moser said.
A spokeswoman for Vertex, Heather Nichols, said more than 99 percent of cystic fibrosis patients who are eligible to take Orkambi in the United States have “broad access” to the drug.
“Vertex has a longstanding commitment to supporting access for all eligible patients, and we will continue to oppose any attempts to restrict patient access to these transformative medicines,” Ms. Nichols said.
Despite its lukewarm reception, Orkambi has been a boon for Vertex. In 2017, the drug was its top-selling product, bringing in about $1.3 billion in sales, a considerable sum for a product that is only approved to treat about 28,000 people worldwide.
Dr. Steven D. Pearson, the president of the Institute for Clinical and Economic Review, which evaluates the cost-effectiveness of drugs, said the problem is that in the United States, drug companies control the prices, especially in the case of newly approved drugs like Orkambi.
“Our system is set up not to distinguish very well between those drugs that are fairly priced and those that are not,” he said. Dr. Pearson’s institute concluded that Vertex’s cystic-fibrosis drugs should be discounted by as much as 77 percent. “That gives the incentive to the company to overreach, and that’s part of why our system is so out of whack,” he said.
In April, Orkambi became the test case for the New York law when a state board ruled that the drug was not worth its cost, recommending that it be discounted from the list price by roughly 70 percent — an amount that was influenced by work done by Dr. Pearson’s institute. New York’s law, passed in 2017, allows the state to ask manufacturers for a deeper discount if the state’s Medicaid drug budget exceeds a certain amount.
Under federal law, state Medicaid programs get a rebate of at least 23 percent. New York officials said that they identified 30 drugs this year that were priced too high, and that those products’ manufacturers agreed to deeper discounts, resulting in about $60 million in annual savings. Vertex, which is based in Boston, was the only company that refused, the state said. New York officials did not identify the manufacturers that agreed to steeper discounts.
For now, at least, Vertex appears to have the upper hand because federal law requires the state to cover Orkambi, although the state can limit its use. Under its new law, New York could also demand that Vertex disclose details about how it sets its price, including how much goes toward research and development or to other areas, like marketing. But even if Vertex complied, that information would not be made public because it is considered proprietary.
Ms. Nichols, the Vertex spokeswoman, said the company had no plans to agree to a discount below the 23 percent required by law.
And Donna Frescatore, the director of New York’s Medicaid program, said she was reluctant to limit the use of Orkambi for those who need it. “It’s certainly a balance with our ability to get fair pricing for this medication,” she said.
But despite the impasse, Mr. Salo said big states like New York are major buyers of prescription drugs, and companies may see an interest in taking those states seriously. “I see this as being of very, very widespread interest,” he said. “A lot of other states are kind of watching and saying, ‘How is that going to work?’”
The debate over Orkambi may soon become moot — earlier this year, the Food and Drug Administration approved a new cystic fibrosis drug, also made by Vertex. Symdeko, as the drug is called, treats a similar population as Orkambi, but has been proven to be more effective. It carries a list price of $292,000 a year, and some analysts, including Geoffrey Porges, of Leerink, say they believe Symdeko will eventually replace Orkambi.
Given the arrival of Symdeko, some analysts said New York would be smart to negotiate a package deal for all three of Vertex’s cystic fibrosis drugs, similar to a deal recently made with Ireland. Ms. Frescatore said that’s an approach that she would consider.
“You don’t want a patient being forced to take Orkambi because it’s cheaper,” Mr. Porges said. “You want the right patient to get the right medicine.”
By Angus Liu
Vertex has often talked about its admiration for Gilead, setting the big biotech’s ability to roll out multiple antivirals as a model for its cystic fibrosis endeavor. Now, though, it faces the same pricing issue once pinned on Gilead’s hepatitis C franchise. But the company refuses to play sitting duck.
In a new report, the U.S. cost-effectiveness watchdog the Institute for Clinical and Economic Review argues that Vertex’s cystic fibrosis trio—Kalydeco, Orkambi and newly approved Symdeko—need a huge price cut to achieve cost-effectiveness. Its suggested discount? Over 70%. Continue reading ‘Sham’ or public interest? ICER suggests 70%-plus discounts on Vertex’s cystic fibrosis drugs
PTEN is best known as a tumor suppressor, a type of protein that protects cells from growing uncontrollably and becoming cancerous. But according to a new study from Columbia University Medical Center (CUMC), PTEN has a second, previously unknown talent: working with another protein, CFTR, it also keeps lung tissue free and clear of potentially dangerous infections.
The findings, published in Immunity, explain why people with cystic fibrosis are particularly prone to respiratory infections—and suggest a new approach to treatment.
A quarter-century ago, researchers discovered that cystic fibrosis is caused by mutations in the CFTR gene, which makes an eponymous protein that transports chloride ions in and out of the cell. Without ion transport, mucus in the lung becomes thicker and stickier and traps bacteria—especially Pseudomonas—in the lung. The trapped bacteria exacerbate the body’s inflammatory response, leading to persistent, debilitating infections.
But newer research suggests CFTR mutations also encourage infections through a completely different manner.
“Recent findings suggested that cells with CFTR mutations have a weaker response to bacteria, reducing their ability to clear infections and augmenting inflammation,” said lead author Sebastián A. Riquelme, PhD, a postdoctoral fellow at CUMC. “This was interesting because it pointed to a parallel deregulated immune mechanism that contributes to airway destruction, beyond CFTR’s effect on mucus.”
That’s where PTEN comes into play. “We had no idea that PTEN was involved in cystic fibrosis,” said study leader Alice Prince, MD, professor of pediatrics (in pharmacology). “We were studying mice that lack a form of PTEN and noticed that they had a severe inflammatory response to Pseudomonas and diminished clearance that looked a lot like what we see in patients with cystic fibrosis.”
Delving deeper, the CUMC team discovered that when PTEN is located on the surface of lung and immune cells, it helps clear Pseudomonas bacteria and keeps the inflammatory response in check. But PTEN can do this only when it’s attached to CFTR.
And in most cases of cystic fibrosis, little CFTR finds it way to the cell surface. As a result, the duo fail to connect, and Pseudomonas run wild.
As it happens, the latest generation of cystic fibrosis drugs push mutated CFTR to the cell surface, with the aim of improving chloride channel function and reducing a buildup of mucus. The new findings suggest that it might be beneficial to coax nonfunctional CFTR to the surface as well, since even abnormal CFTR can work with PTEN to fight infections, according to the researchers.
“Another idea is to find drugs that improve PTEN membrane anti-inflammatory activity directly,” said Dr. Riquelme. “There are several PTEN promotors under investigation as cancer treatments that might prove useful in cystic fibrosis.”
The study also raises the possibility that PTEN might have something to do with the increased risk of gastrointestinal cancer in cystic fibrosis patients. “With better clinical care, these patients are living much longer, and we’re seeing a rise in gastrointestinal cancers,” said Dr. Prince. “Some studies suggest that CFTR may be a tumor suppressor. Our work offers an alternative hypothesis, where CFTR mutations and lack of its partner, PTEN, might be driving this cancer in patients with cystic fibrosis.”
The paper is titled, “Cystic fibrosis transmembrane conductance regulator attaches tumor suppressor PTEN to the membrane and promotes anti Pseudomonas aeruginosa immunity.”
For journal article click here:
Findings from a phase 3 trial evaluating the efficacy and safety of tezacaftor in combination with ivacaftor in patients with cystic fibrosis (CF) who were homozygous for the Phe508del mutation were published in the New England Journal of Medicine.
The Phe508del mutation has been known to result in greatly reduced conductance regulator (CFTR) protein activity and a loss of chloride secretion, which can lead to impaction of mucus in the airways, gastrointestinal tract, and exocrine organs, with the potential for severe clinical consequences including gradual loss of lung function, nutritional deficits, pulmonary exacerbations, and respiratory failure. It is the most prevalent CFTR mutation worldwide, and affects approximately 46% of American CF patients.
Previous data has shown Ivacaftor’s association with a rate of progressive decline in lung function that is lower than that in untreated patients. In a phase 2 clinical trial involving patients who were homozygous for the Phe508del mutation or heterozygous for the Phe508del and G551D mutations, when combined with the investigational CFTR corrector tezacaftor, it has exhibited enhanced CFTR function and improved lung function.
In August, just one month removed from Vertex’s announcement of positive datafrom Phase 1 and Phase 2 studies, Rare Disease Report covered the acceptance of applications for the use of the tezacaftor/ivacaftor combination treatment in this patient population by the U.S. Food and Drug Administration (FDA) and European Medicines Agency (EMA).
The phase 3 trial enrolled a total of 510 patients 12 years and older with CF who were homozygous for the Phe508del CFTR mutation at 91 sites in the U.S., Canada, and Europe from January 30, 2015 to January 20, 2017. Patients were randomly assigned to be administered either tezacaftor and ivacaftor (administered as a fixed-dose combination tablet containing 100 mg of tezacaftor and 150 mg of ivacaftor in the morning and a tablet containing 150 mg of ivacaftor in the evening) combination therapy or placebo for 24 weeks.
In total, 475 patients completed the full 24 weeks of the trial, with 93.6% (n=235) in the tezacaftor-ivacaftor group and 93% (n=240) in the placebo group. While no significant difference in the body mass index (BMI) was experienced between the groups at week 24, the use of the combination therapy led to a significantly greater absolute change from baseline in the predicted forced expiratory volume in 1 second (FEV1) than placebo. Despite advances in standard-of-care therapy, patients with CF continue to lose lung function at a rate of an estimated 1% to 3% per year. This trial exhibited a significant effect of the combination therapy compared to the placebo, as the mean absolute change from baseline in FEV1 through week 24 was 3.4 percentage points in the former, compared to 0.6 in the latter.
The most common adverse events (AEs) among the enrolled patients included infective pulmonary exacerbation, cough, headache, nasopharyngitis, increased sputum production, pyrecia, hemoptysis, oropharyngeal pain, and fatigue. The incidence of AEs was similar in both the group for combination therapy and the placebo group, however, those treated with lumacaftor-ivacaftor in the phase 3 did not experience an increased incidence of respiratory events (33 patients [13.1%] vs. 41 patients [15.9%]).
This improved safety profile of the tezacaftor-ivacaftor combination supports its use in a broad range of patients with CF, and, if approved, the therapy will be the third of Vertex’s drugs approved for CF patients, and the second intended specifically to treat patients with F508del mutations (Orkami [lumacaftor/ivacaftor]).
For original article please visit: http://www.raredr.com/news/phase-3-combination-therapy-cystic-fibrosis?t=physicians
For the published study please visit: http://www.nejm.org/doi/full/10.1056/NEJMoa1709846?query=genetics#t=articleDiscussion
Sevion Therapeutics and Eloxx Pharmaceuticals announced that a first healthy subject has been dosed in a Phase 1b clinical trial assessing the safety, tolerability and drug properties of ELX-02 as a potential treatment of several genetic diseases caused by nonsense mutations, including cystic fibrosis (CF).
Researchers hypothesize that the newly-discovered mutations help re-hydrate the airways, discouraging bacterial build-up in the lungs.
Despite a narrow average lifespan, there is a big range in how severely cystic fibrosis (CF) affects the lungs and other organs depending on an individual’s specific genetic variation, and even in how long patients sharing the same, most common genetic mutation are able to survive with CF.
This led researchers at Boston Children’s Hospital to wonder if other genetic mutations could be protective against CF’s effects. Recent findings published in the American Journal of Respiratory Cell and Molecular Biology suggest that may be the case.
“There are some patients at one end of extreme severity who need a lung transplant very early in life, then others whose clinical presentation seems to stabilize so that they can live into the fifth and sixth decades of life,” says Pankaj Agrawal, MBBS, MMSc, principal investigator and medical director of The Manton Center’s Gene Discovery Core at Boston Children’s, who was the co-first author on the study.
To find out why, Agrawal and researchers at Boston Children’s — including Ruobing Wang, MD, a pulmonologist, and Craig Gerard, MD, PhD, chief of the Division of Respiratory Diseases — conducted the first-ever longitudinal analysis of genetic modifiers related to CF.
They combed through a population of nearly 600 CF patients registered at the Boston Children’s Cystic Fibrosis Center and found five individuals who stood out because of their advanced age — in their 50s or 60s — and relatively normal lung function.
“Given the large size of our center’s patient population, we were able to find a number of individuals at this rare ‘extreme,'” says Wang, who was co-first author on the paper.
A new hypothesis for mitigating cystic fibrosis
To discover the genetic variants, the researchers collected blood from these patients and performed whole exome sequencing on their DNA, analyzing the “coding” section of the genome that is responsible for most disease-related mutations.
Sequencing the genes of these five Boston Children’s patients — a cohort known as “long-term non-progressors” — the researchers found a set of rare and never-before-discovered genetic variants that might help explain their longevity and stable lung function.
The gene variants are related to so-called epithelial sodium channels (ENaCs), semi-permeable cellular pathways responsible for reabsorbing sodium in the kidney, colon, lung and sweat glands.
“Our hypothesis is that these ENaC mutations help to rehydrate the airways of CF patients, making it less likely for detrimental bacteria to take up residence in the lungs,” says Wang.
The discovery brings ENaCs into the limelight as a potential new therapeutic target.
“For example, if we could target ENaCs with a small molecule or an antibody-based drug, we might be able to incur a protective effect against CF’s progression,” says Agrawal, who is also a physician in the Boston Children’s Division of Newborn Medicine.
Based on their findings, the team is now doing further studies to analyze the genetics of patients at the other end of the CF spectrum — those with extremely severe clinical presentation of symptoms at a young age.
Boston Children’s Hospital. “Some people with cystic fibrosis might live longer because of genetic mutations: Researchers hypothesize that the newly-discovered mutations help re-hydrate the airways, discouraging bacterial build-up in the lungs.” ScienceDaily. ScienceDaily, 25 October 2017. <https://www.sciencedaily.com/releases/2017/10/171025150620.htm>.