Learn about cystic fibrosis, a genetic disorder that affects the lungs, pancreas, and other organs, and how to treat and live with this chronic disease.
CF is a rare genetic disease found in about 30,000 people in the U.S. If you have CF or are considering testing for it, knowing about the role of genetics in CF can help you make informed decisions about your health care.
If you or your child has just been diagnosed with cystic fibrosis, or your doctor has recommended testing for CF, you may have many questions.
Diagnosing CF is a multistep process. A complete diagnostic evaluation should include a newborn screening, a sweat chloride test, a genetic or carrier test, and a clinical evaluation at a CF Foundation-accredited care center.
Raising a child with cystic fibrosis can bring up many questions because CF affects many aspects of your child’s life. Here you’ll find resources to help you manage your child’s daily needs and find the best possible CF care.
Living with cystic fibrosis comes with many challenges, including medical, social, and financial. By learning more about how you can manage your disease every day, you can ultimately help find a balance between your busy lifestyle and your CF care.
People with CF are living longer, healthier lives than ever before. As an adult with CF, you may reach key milestones you might not have considered. Planning for these life events requires careful thought as you make decisions that may impact your life.
People with cystic fibrosis are living longer and more fulfilling lives, thanks in part to specialized CF care and a range of treatment options.
Cystic Fibrosis Foundation-accredited care centers provide expert care and specialized disease management to people living with cystic fibrosis.
We provide funding for and accredit more than 120 care centers and 53 affiliate programs nationwide. The high quality of specialized care available throughout the care center network has led to the improved length and quality of life for people with CF.
The Cystic Fibrosis Foundation provides standard care guidelines based on the latest research, medical evidence, and consultation with experts on best practices.
As a clinician, you’re critical in helping people with CF maintain their quality of life. We’re committed to helping you partner with patients and their families by providing resources you can use to improve and continue to provide high-quality care.
As part of the Cystic Fibrosis Foundation's mission to help improve the lives of people living with cystic fibrosis, the PSDC initiative taps the CF community to inform key efforts to support the management of daily care.
Your cystic fibrosis care team includes a group of CF health care professionals who partner with you to provide specialized, comprehensive CF care.
Many cystic fibrosis patients and families face complicated issues related to getting the care they need. But CF Foundation Compass makes sure that no one has to do it alone.
For many people with cystic fibrosis, dealing with insurance is as much a part of living with the disease as nebulizers and vests. Many people with CF and their families face issues related to getting the care they need, but no one has to do it alone.
The Cystic Fibrosis Foundation is the world’s leader in the search for a cure for CF and supports a broad range of research initiatives to tackle the disease from all angles.
The CF Foundation offers a number of resources for learning about clinical trials and treatments that are being developed to improve the treatment of cystic fibrosis.
Our understanding of CF continues to evolve as scientists study what causes the disease and how it affects the body. These insights drive the development of new and better treatments and bring us one step closer to a cure.
Researchers, supported by the CF Foundation, have made tremendous advances to improve the health and quality of life of people with CF. We are committed to providing the tools and resources you need to continuously build upon this work.
Our goal is to educate policy makers about the needs of people with cystic fibrosis so that they make smart decisions about CF-related research, treatment, and access to care.
We recognize the value of tapping into the expertise that only people with CF and their families have. We invite you to share insights to help improve and develop programs and services that support the daily lives of people with CF.
Our mission is to find a cure for cystic fibrosis and improve the quality of life for those living with the disease. We can't do it alone. Help us add tomorrows by giving today.
In addition to working for a cure, the CF Foundation supports programs and policies to improve the lives of people with CF. Help us by raising awareness of CF, participating in a fundraising event, or volunteering with your local chapter.
The Cystic Fibrosis Foundation supports a wide range of research that focuses not only on improving the quality of life for people with cystic fibrosis today, but also on accelerating innovative research and drug development to add tomorrows.
Over the past several decades, the Cystic Fibrosis Foundation's unwavering focus on CF research has resulted in at least 10 therapies to treat CF. We have made incredible
strides, including the approval by the U.S. Food and Drug Administration (FDA) of ivacaftor (Kalydeco®), lumacaftor/ivacaftor (Orkambi®), and the recent approval of tezacaftor/ivacaftor (Symdeko®). We will continue to push the
frontiers of science to find therapies that treat the underlying cause of this disease for 100 percent of people with CF, and we will not stop until we achieve this goal. Last year the Foundation supported nearly 70 multicenter trials for a wide range of therapies and is continuing to build on this momentum by aggressively funding an innovative research agenda. Last year, the Foundation spent
$169 million on awards for laboratory research, preclinical drug development, clinical research, and high-quality, specialized care and training -- the largest amount ever. This funding includes more
than $116 million to support laboratory research (also known as basic research) and clinical research. Knowing that time is of the essence, the Foundation has budgeted to spend even more on research in 2018. We are committed to supporting
and accelerating any potential treatment that we think may benefit people with CF. In 2017, the Foundation met with more than 140 different companies in the biotech and pharmaceuticals industries. The CF Foundation is funding around 40 programs to
help advance therapies that would be unlikely to move beyond the lab without our support.
The Laboratory and Clinical Research Awards chart below includes $124 million that the Foundation distributed in awards (in the form of grants to academic institutions and therapeutic development contracts with industry) and support for its one-of-a-kind,
CF-focused research lab, the Cystic Fibrosis Foundation Therapeutics (CFFT) Lab. Each category (such as “CFTR Modulation”) includes both the funding for the basic (laboratory) research and clinical research being conducted in that area. “Other Laboratory
Research Support” and “Other Clinical Research Support” refer to research that does not fall into the other categories listed.
Even with the advancement of highly effective CFTR modulators, there will be several generations of people with CF who have complications from the disease who will continue to require additional therapies to treat complications such as infections, inflammation, excessive mucus, and gastrointestinal issues. As such, improving treatments for complications of CF is of critical importance to the CF Foundation and in 2017, the CF Foundation spent more money in this area of research than on any other.
Approximately $40 million went to fund more than 200 different research projects related to complications. There are also more than 15 potential drugs in the pipeline to treat complications of CF, including anti-infectives, anti-inflammatories, mucociliary clearance therapies, and nutritional agents. The goal of these new treatments is to preserve lung function and maintain people’s health, until they can benefit from CFTR modulators as they are approved for more and more mutations.
Although the lungs are usually the most seriously affected part of the body in CF, most people with this disease also experience complications in the digestive system. Getting adequate nutrition can be a problem for people with CF because mucus can block the ducts in the pancreas and prevent digestive enzymes from reaching the small intestine to digest food. This is important because data show that lung function and nutrition are closely linked. Other problems include abdominal pain, poor absorption of nutrients like vitamins, constipation, and liver disease.
The Foundation funded nearly 20 projects in 2017 related to GI complications and has helped organize a group of GI specialists who focus specifically on the treatment and research of GI issues in CF. Called the Developing Innovative Gastroenterology Specialty Training program, or DIGEST, this group of GI doctors is developing best practices and a better understanding of abdominal symptoms to lead to better treatments.
Also, in an innovative partnership with the National Institutes of Health (NIH), the Foundation is investigating the best methods of screening for liver disease.
The Foundation also supports clinical trials for glutathione, an antioxidant that is important to the normal functioning of the intestine and lungs. Glutathione levels have been shown to be lower in people with CF. Preliminary data suggest that oral glutathione may improve growth and decrease GI inflammation in children with CF.
CF-related diabetes (CFRD) is typically found in adults but also affects adolescents. This unique form of diabetes can accelerate lung complications if not properly controlled. The Foundation is funding research to better understand the underlying cause and genetics of CFRD, the best methods for delivering CFRD care, the potential benefit of CFTR modulators on preventing the development of CFRD, and the control of CFRD that does develop.
With more than 200 people with CF undergoing lung transplantation every year, the Foundation is determined to improve the lung transplant journey.
The Foundation launched the CF Lung Transplant Initiative in 2016 to standardize and improve the delivery of lung transplant clinical care, increase understanding of post-transplant complications including chronic rejection, and develop new therapies for lung transplantation through clinical studies. It has committed more than $15 million over multiple years to this initiative. (The $1.7 funding highlighted on the chart includes 2017 research funding only. It does not include money spent on other parts of the initiative.)
As part of the initiative, the Foundation set up a consortium of 10 lung transplant sites that are sharing best practices and establishing a shared biorepository that can be used to test potential therapies. Committees have been established to develop care guidelines in the next 6-12 months that will include recommendations on referrals for transplant, how and when to discuss transplant options, how to manage individuals with CF who have advanced lung disease, and CF-specific post-lung transplant care.
The Foundation also funded nine basic science lung transplant research studies. Additionally, researchers specializing in transplant met in February 2018 to determine what studies are needed in order to understand, prevent, and treat chronic lung allograft dysfunction (CLAD).
To improve the chances of eradicating these infections, research is underway to develop better methods of detecting germs and diagnosing infections earlier. One such project is focused on nontuberculous mycobacteria (NTM).
NTM infections in CF are becoming increasingly common, and it is therefore one of the Foundation’s highest priority antimicrobial areas. Common NTM infections in people with CF include Mycobacterium abscessus (M. abscessus) and Mycobacterium avium complex (MAC). In 2017, the Foundation created the NTM Consortium to help standardize the diagnosis and treatments of NTM lung disease. The consortium is facilitating two large studies. The PREDICT study will focus on determining whether to treat NTM once it is detected, and the PATIENCE study will follow those patients who are receiving treatment to see how well they do and whether the treatment should become standard. The consortium of sites with expertise in NTM also forms a framework for future clinical trials for new therapies targeting NTM.
In addition to NTM, there are also many other concerning microorganisms prevalent in the CF community. They include fungus and the following bacteria: Pseudomonas aeruginosa (P. aeruginosa), Burkholderia cepacia (B. cepacia), Achromobacter, and methicillin-resistant Staphylococcus aureus (MRSA). Research is underway to improve our understanding of these CF microorganisms. Studying the microbial ecology of the airways as well as bacteria in the environment will help researchers develop better strategies to prevent, manage, and treat infections.
The CF Foundation is also funding the development of new therapies to bring the most effective and safest anti-infectives to people with CF as quickly as possible. One such project is focused on developing more effective treatments for NTM by leveraging advances made by the Bill and Melinda Gates Foundation during its efforts to accelerate the development of treatments for tuberculosis. In addition, researchers are exploring the possibility of repurposing existing therapies to bring new NTM drugs to the market.
Of particular concern to the community are drug-resistant organisms, bacteria that no longer respond to many of the available antibiotics. Because of this, the Foundation is focused on developing entirely new therapeutic agents with novel ways of fighting the infection.
One innovative approach is the use of gallium, a metal that acts in a similar fashion as iron to disrupt iron-dependent biological processes that are necessary for bacteria to survive. Promising laboratory research has shown that gallium can kill antibiotic-resistant strains of P. aeruginosa and other difficult-to-treat bacteria. As a result, a Phase 2 clinical trial is underway to see if gallium, which has already been approved by the U.S. Food and Drug Administration (FDA) for intravenous use in people, is safe and effective at controlling P. aeruginosa in people with CF.
Another unique approach is exploring the use of inhaled nitric oxide (NO), a natural antibiotic that is produced by the immune system. A clinical trial is underway to determine the effectiveness of this potential therapy on people with chronic bacterial infections.
Because approximately 25 percent of people with CF test positive for MRSA each year, the Foundation is supporting several studies exploring the best way to fight this bacteria, including providing funding for a Phase 3 clinical trial that started in late 2017 to test the use of inhaled vancomycin.
The CF Foundation is also focused on improving current treatments. In 2018, the CF Foundation awarded up to $3 million to support the development of a novel molecule that could potentially make antibiotics more effective by breaking down the protective layer that sometimes surrounds bacteria and increases their resistance to anti-infectives.
Additionally, the Foundation is funding a clinical trial that is looking at the safety and effectiveness of three different lengths of IV antibiotic treatment for pulmonary exacerbations. The STOP 2 trial complements an initial observational study, known as the STOP (Standardized Treatment of Pulmonary Exacerbations) trial, which sought to identify best practices for treating this common complication of CF. A new STOP trial is expected to begin in 2018 that will focus on children and oral antibiotics.
Common antibiotics, including aminoglycosides (such as tobramycin), can cause hearing loss. In an early phase study, researchers are testing a potential drug called ebselen that can prevent damage to the inner ear caused by antibiotics.
Bacteriophage (phage) therapy uses viruses that attack bacteria to treat bacterial infections. (Bacteriophage therapy has not been approved by the FDA for use in the United States.) The Foundation is funding three basic science studies to improve our understanding of the potential use of phage therapy to treat infections and its limitations.
Bacterial infections are not the only concern in the CF community. Many fungi, including Aspergillus fumigatus, cause complications for people with CF. The Foundation is supporting the development of an inhaled version of itraconazole to treat an allergic reaction to Aspergillus called allergic bronchopulmonary aspergillosis (ABPA). It is hoped that an inhaled version may cause fewer side effects and reduce drug-drug interactions.
With the progress of CFTR modulators, there are many questions about how these and other future treatments could impact infections. Scientists are studying how germs respond once individuals begin modulator therapies. The GOAL study and a companion study based in Ireland investigated how we might be able to eradicate certain infections with modulator therapy. Additional studies are planned to examine the effect of future modulators on infections in people with CF.
Inflammation is a natural part of the body’s immune response to infection. However, people with CF have a much longer and more intense inflammatory response, which can be just as destructive to the lungs as the infection itself. Researchers believe that cells with a defective CFTR protein send out excessive signals that cause inflammation.
The CF Foundation is providing funding for around 40 projects to identify the causes of this excessive signaling and devise methods to block these signals. This includes support for four clinical trials to test potential anti-inflammatory medications.
Researchers involved in one of these clinical trials sponsored by Corbus announced promising results from an early stage study. To advance the development of this novel anti-inflammatory drug, in early 2018 the Foundation awarded up to $25 million to help fund a Phase 2b trial, which is underway. A second Phase 2 trial testing a different anti-inflammatory agent is nearing completion by Celtaxsys with results expected in 2018.
Thick, sticky mucus is a major contributor to lung damage in people with CF. The Foundation is funding more than 35 projects to develop new and more effective treatments to improve the clearance of mucus from the lungs of people with CF.
Some promising potential therapies include agents that thin the mucus, so it can be cleared away more easily. Another approach focuses on increasing the surface liquid in the lungs by inhibiting the epithelial sodium channel (ENaC), which is overactive in CF and contributes to the thickening of mucus by drying the airways. An important aspect of these approaches is that they could potentially help all people with CF, regardless of their CFTR mutations.
One company is also developing a compound that is proposed to break down mucus and biofilms, thereby improving mucus clearance and the effectiveness of antibiotics.
For nearly 20 years, the Foundation has pursued a long-term strategy to develop effective CFTR modulator treatments that target the underlying defect in cystic fibrosis. Many different companies and academic investigators are testing an unprecedented number of new and potentially more effective CFTR modulators in clinical trials.
In early 2018, the CFTR modulator tezacaftor/ivacaftor (Symdeko®) was approved by the FDA, offering an alternative for people who cannot tolerate lumacaftor/ivacaftor (Orkambi®). Tezacaftor is also positioned to play a critical role in next-generation triple-combination therapies.
This first generation of FDA-approved CFTR modulators, which includes ivacaftor (Kalydeco®), lumacaftor/ivacaftor (Orkambi®), and tezacaftor/ivacaftor (Symdeko®), will eventually benefit more than 60 percent of people with CF. Trials are already underway to determine the effectiveness and safety of these drugs in children as young as 6 months old. Obtaining access to these drugs early in life is an important step, as new research indicates that taking modulators before the disease has progressed could potentially preserve long-term lung and GI function.
Several next-generation modulators in clinical trials have the potential to be significantly more effective than current FDA-approved CFTR modulators and to benefit more people with CF than ever before. This includes individuals with only one copy of the F508del mutation, regardless of their other mutation.
Based on early stage clinical trial results, two new CFTR modulator candidates were chosen for Phase 3 clinical trials. The candidates, VX-659 and VX-445, are being tested as part of two different triple-combination therapies. One of these next-generation modulators could be approved as early as 2020. If approved, more than 90 percent of the CF population could have highly effective modulators for their specific mutations.
Several companies are developing next-generation modulators that are either currently in clinical trials or will be entering clinical trials soon.
Research is underway to categorize mutations based on how they respond to different modulators. By testing modulators on different CFTR mutations in the laboratory, scientists can identify treatments for people with mutations that are so rare as to make clinical trials impractical.
The Foundation is working with scientists, clinicians, and regulators to devise ways to use this technique, called "theratyping" to identify mutations that respond to modulators already on the market. Theratype testing is underway at three Foundation-funded labs where they are investigating whether 650 rare CFTR mutations -- chosen because they produce CFTR protein -- show improvement when exposed to a modulator therapy. If any of the tests display positive results, the Foundation plans to work with the drug company that developed the modulator, as the company will need to request the FDA approve the medication for people with those mutations.
Theratyping has already proven successful. In early 2017, the FDA relied on a combination of theratyping results, clinical data, and the drug’s established safety record to expand the use of ivacaftor to people ages 2 or older who have at least one of 23 CFTR mutations.
In 2017, the CF Foundation spent more than $40 million on clinical research (of which $25.1 million went to support clinical research that did not fall specifically into one of the other categories included in the pie chart). This funding helped to support the most robust drug development pipeline of potential new therapies for CF in the history of the Foundation. There are more than 25 new drugs in development in the CF Foundation’s Drug Development Pipeline.
The Foundation enabled 68 multicenter clinical trials in 2017, more than doubling the number of trials from just four years ago. The breadth of trials has also increased, focusing not only on CFTR modulators, but also on a variety of treatments for complications of the disease, such as infections, excessive mucus, inflammation, and gastrointestinal (GI) issues.
These trials were made possible because of the largest CF clinical trials network in the world, the CF Foundation-supported Therapeutics Development Network (TDN). This coordinated network, which receives more than $20 million annually from the Foundation, allows trials to be performed more efficiently, accelerating the development of new therapies for people with CF. Including 89 Foundation-accredited care centers with specialized research teams able to perform clinical trials, the TDN is critical to ensuring advancements aren't delayed because of insufficient enrollment in clinical trials.
The Foundation also supports international clinical research initiatives in Canada, Australia, the United Kingdom, and other European countries in our ongoing effort to accelerate the delivery of new therapies to people with CF. More than 50 international research teams receive financial support to help conduct trials and ensure adequate enrollment.
Because CF is a rare disease, the CF Foundation provides financial support to encourage companies to focus on CF and help advance therapies that would be unlikely to move beyond the lab and into clinical trials.
The Foundation funded $76.5 million in cutting-edge, innovative basic research -- research conducted in the lab -- in 2017 (of which $8.4 million went to support research that did not fall specifically into one of the other categories included in the pie chart). These funds highlight the critical role fundamental research plays in advancing new therapies by increasing our understanding of the disease and identifying new opportunities for developing treatments. The range of this laboratory research includes everything from gene editing to the structure and function of the CFTR protein. This CF Foundation-funded research is laying the groundwork for the next generation of treatments.
Much of the funding for laboratory research goes to academic institutions, including $6.36 million toward the Foundation’s Research Development Program (RDP). This money helps pay for core lab facilities, pilot programs, and training at 11 pioneering academic centers. These centers have conducted innovative CF research that has resulted in some of the most significant advances in the field, including the identification of the first small-molecule CFTR modulators and the development of the original model of cystic fibrosis in a mouse.
The RDP also plays a critical role in fostering the next generation of CF scientists and clinicians. Many of today’s top CF researchers began their careers at an RDP. New researchers are critical to ensuring that the pace of development continues, and the Foundation is therefore investing heavily in training and career development.
To harness expertise, the Foundation has also facilitated several different research consortia, including the:
Research consortia are accelerating advancements in these areas by bringing together the brightest minds in these specialized fields of study to resolve important questions and to overcome challenges.
To accelerate the pace of research, the Foundation also invests in the development of tools, including cell lines, antibodies, and databases; the identification of biomarkers; and the creation of animal models that replicate various aspects of the disease. All these investments play a critical role in advancing new therapies for CF.
This year, the Foundation launched a project to sequence the entire genome of 5,000 people with CF. This whole genome sequencing project will enable researchers to identify genes that alter or modify the disease. This research could provide useful insight into how these modifying genes influence the progression of CF and explain why two individuals with the same CFTR genes, lifestyle, and other characteristics, have different manifestations of the disease and different responses to therapy. For this project, deoxyribonucleic acid (DNA) acquired from three long-term studies will be used and data will be made available as a tool for CF scientists to investigate new genetic questions.
In 2016, the CF Foundation celebrated the opening of a new, one-of-a kind CF research facility to bridge the gap between discoveries made at academic institutions and the medications made by the pharmaceutical industry. Based in Lexington, Mass., the CF Foundation Therapeutics Lab identifies and tests potential groundbreaking therapies for CF, readying them for further development.
The CF Foundation Therapeutics Lab has screened its more than 200,000-compound library for potential new therapies -- including readthrough agents for nonsense mutations and new CFTR modulators -- to treat the underlying cause of CF. Currently, more than half of the work at the lab is concentrated on nonsense and rare mutations, and the lab recently launched an initiative to create a cell culture bank with cells from people with CF who have rare mutations. This cell culture bank will aid in the development of nonsense-targeted therapies and may result in the extension of available therapies to people with rare mutations. The expanded facility also enables the lab to research gene editing and stem cell biology.
The most promising options for a cure are either adding normal CFTR genes to cells using gene therapy or repairing the defective CFTR genes using gene editing.
In 2017, the Foundation devoted more than $7.3 million to fund more than 30 groundbreaking gene editing, gene delivery, and stem cell research projects. Using the latest scientific discoveries in these areas of research, the Foundation is trying to tailor gene editing techniques for CF with the goal of one day curing the disease.
Although these technologies have progressed rapidly in the last few years, it will be many years before they reach patients.
In April 2018, the Foundation launched the Epithelial Stem Cell Consortium. The inaugural meeting brought together stem cell experts from across the country to focus on advancing our understanding of airway stem cells and how they may be targeted by gene therapy or other therapeutic approaches.
Additionally, the CF Foundation Therapeutics Lab has hired both gene editing and stem cell biologists to work together to explore and advance new treatments and to get us one step closer to our ultimate goal of a cure.
Gene delivery refers to the process of transporting specifically engineered DNA molecules into cells, and it is an essential component of gene editing and gene therapy. The Foundation is providing funding to 4D Molecular Therapeutics and Talee Bio to expand preclinical work to develop and test their gene delivery vehicles, which would transport a healthy CFTR gene into the lung cells of people with CF. The Foundation is also investigating nonviral approaches (i.e., lipid nanoparticles) to package DNA or RNA for delivery to the lung and other tissue.
Gene editing and gene therapy are emerging technologies that could be used one day to correct the mutations in the CFTR genes that cause CF. Gene editing tools would repair the mutations in a patient’s DNA, while gene therapy would introduce a healthy CFTR gene into the cells of people with CF. Editas Medicine Inc. has received funding from the Foundation to advance potential gene editing approaches that could be developed into therapies for CF. The company is using CRISPR/Cas9 technology -- a tool that works like an editing program, allowing researchers to cut out and revise, or repair, DNA. Gene editing offers the potential to correct nearly every CFTR mutation.
It is estimated that 5-7 percent of people with CF will be unable to benefit solely from CFTR modulators and will require different therapies to fix the underlying cause of their disease. We are funding research aimed at discovering new treatments for these individuals with nonsense and rare mutations that do not produce CFTR proteins.
In 2016, the Foundation launched the Nonsense and Rare Mutations Research and Therapeutics Initiative focused on funding research to address the needs of these individuals. The Foundation has committed $72 million to the initiative, which helps advance research by academic institutions and biotech and pharmaceutical companies focused exclusively on creating therapies to restore CFTR production.
In people with CF who have nonsense mutations (also known as "x" or "stop" mutations), CFTR protein production stops prematurely. This leads to a shorter, incomplete protein that usually doesn't work and is possibly unstable. One unique strategy to develop new treatments for these mutations involves small-molecule compounds known as readthrough agents. These compounds would "read through," or override, premature stop signals in the CFTR gene to make a full-length CFTR protein. We are also investigating ways to stabilize the messenger ribonucleic acid (mRNA) that is responsible for producing CFTR proteins. By stabilizing the mRNA, we would increase the amounts of full-length, functional CFTR proteins that are made.
With funding from the Foundation, the nonprofit organization Southern Research, in collaboration with the University of Alabama at Birmingham, is using a novel and sophisticated screening process to identify readthrough compounds in its 750,000-compound chemical library. In addition, approximately half of the research being performed at the Cystic Fibrosis Foundation Therapeutics Lab is focused on therapies that could help provide new treatments for individuals with nonsense mutations.
In May 2018, the CF Foundation awarded up to $11 million to the biotech company Icagen to fund the largest high-throughput screen for readthrough agents the Foundation has conducted to date. As part of this contract, more than two million compounds will be screened to identify candidates that may be developed into drugs for people with nonsense mutations.
To further expedite the development of new treatments for individuals with nonsense mutations, the RARE cell-collection study was launched in early 2018. The study will collect cells from individuals with two stop mutations to allow testing of promising new therapies (readthrough agents as well as other compounds).
Transfer RNA (tRNA) is a key component in the cell’s ability to translate DNA into a protein. A new program called ReCode is exploring the delivery of a suppressor tRNA that will also allow readthrough of nonsense mutations to make a full-length CFTR protein.
Another innovative treatment that is part of the Foundation’s strategy is ribonucleic acid (RNA) therapy. This treatment restores and stabilizes the mRNA that is used in the cell as a template to create the CFTR protein. One of the benefits of this treatment is that it could potentially benefit everyone with CF regardless of their mutations.
For RNA therapy, we are pursuing two different approaches in parallel. The first approach would replace the defective mRNA by delivering normal mRNA to cells. The second approach is to repair the defective mRNA responsible for producing the CFTR protein. Both strategies would enable full-length, functional CFTR protein to be made.
The first mRNA therapy clinical trial is scheduled to begin in mid-2018. This early stage study will test whether normal mRNA can be transmitted into the cell safely to make CFTR protein. A second company is pursuing a similar approach in the laboratory with the goal of identifying a safe, effective delivery system for mRNA.
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