At 4DMT, PATIENTS are at the center of everything we do. Everything we’re building is in service of better patient survival and quality of life—and we involve patients every step of the way. This focus on patients is essential to our success.

The voice of the patient is key within 4DMT. Our outreach to patients and their communities helps us understand their perspectives. We then incorporate patients’ goals in our drug development and patient support activities. To that end, through our patient advocacy collaborations we aim to achieve the following:

  • Work to deepen our understanding of patient experiences, unmet medical needs, treatment preferences and clinically significant treatment outcomes
  • Collect the patient perspective on gene therapy and gene editing, including patient concerns and needs
  • Work to deepen our understanding of regulatory approval pathways and clinical endpoints
  • Improve patient awareness of the potential to enroll in our clinical trials
  • Develop relationships with disease-specific clinician-scientists for their expertise and guidance (i.e. key opinion leaders)
  • Bring patients hope for potential life-changing therapies



We’re proud of our strong relationships with our current patient advocacy partners. We’re also very open to additional opportunities—
if you are a patient or family member or represent a patient advocacy group and are interested in partnering, contact us here.

We have just announced a new agreement with the Cystic Fibrosis Foundation (CF Foundation) to develop precision gene medicines for cystic fibrosis (CF). The CF Foundation’s mission is to cure CF and to provide all people with the disease the opportunity to lead full, productive lives. Their investment builds upon previous work with 4DMT to advance new therapies for CF. Under this agreement, the CF Foundation will support the completion of IND-enabling research and development activities, and the planned Phase 1/2 clinical study of 4D-710, 4DMT’s wholly-owned product candidate for the aerosol treatment of CF lung disease. The Foundation also brings to us research and clinical expertise as well as a network of doctors, trial investigators, and patients that not only help inform product design, but also support clinical trial design and execution.


Our partnership with the Foundation Fighting Blindness (FFB) is focused on developing potentially breakthrough treatments—and possibly cures—for patients with inherited retinal diseases. We are developing drug candidates based on our proprietary AAV vectors which are optimized for intravitreal administration. The FFB brings a wide range of strengths to our collaboration including clinical expertise and networks of experienced physician-scientists, key opinion leaders, trial investigators and patients in need.


Our partnership with the National Fabry Disease Foundation (NFDF) is focused on developing a breakthrough treatment for patients with Fabry disease, a progressive and often life-threatening condition. NFDF is dedicated to supporting the Fabry disease community through multiple initiatives, including assisting with Fabry disease education, facilitating Fabry disease identification to improve Fabry disease recognition and diagnosis, providing various forms of assistance to individuals with Fabry disease, supporting Fabry disease research, and promoting advocacy for Fabry disease issues. Our partnership with the NFDF is key as we advance our lead product candidate into clinical stage trials and embark on a natural history study in patients with this devastating disease.


Our partnership with the Choroideremia Research Foundation (CRF) is focused on developing a transformative gene therapy product designed for intravitreal administration to treat choroideremia, a hereditary retinal degenerative disease caused by a mutation in the Rep-1 gene. The Foundation brings together grant support; clinical and regulatory expertise; and a network of doctors, trial investigators, patients and patient families. CRF resources and expertise are helping us plan and execute our clinical trials, including our natural history study.


We are working with the Fabry Support & Information Group (FSIG) as we develop a transformative gene therapy product to treat Fabry disease, a lysosomal storage disorder for which there are currently no adequate treatments. FSIG strives to support affected families and individuals, helping them lead fuller lives by raising awareness of Fabry disease and its symptoms, advocating for community needs, and leading the fight for the most effective treatments possible and eventually a cure. FSIG is providing 4DMT access to medical experts, researchers, and patients and families, helping us with both the development of our lead product candidate and our Fabry disease natural history study geared towards better understanding the wide-ranging impacts of this disease.




Hear choroideremia patients and their loved ones explain—in their own words—the devastating impact of this debilitating eye disease. At 4DMT,
we understand how truly life-changing a treatment could be. We’re dedicating ourselves every single day to make that treatment a reality, giving the choroideremia community hope for a better future.


Watch this beautiful and inspirational music video documenting one mother and daughter’s journey with CF.



If you are a patient, caregiver or healthcare professional and are interested in receiving more information about 4DMT clinical trials, please fill out the form below. To read more about our clinical trials visit the links below.

An Open-label, Phase1/2 Trial of Gene Therapy 4D-310 in Adult Males with Classic Fabry Disease
View on clinicaltrials.gov.

Phase 1/2 Clinical Trial of 4D-125 for X-Linked Retinitis Pigmentosa (XLRP)
View on clinicaltrials.gov.

Phase 1 Clinical Trial of 4D-110: Dose Escalation Study of Intravitreal 4D-110 in Patients With Choroideremia
View on clinicaltrials.gov.


Please check back as we are planning to initiate multiple studies in 2020. (You can also search “4D Molecular Therapeutics” on: clinicaltrials.gov.) Or, sign up using the form below and we’ll alert you when more information is available. (Your contact information will never be shared or sold.)





At 4D Molecular Therapeutics (4DMT), we are committed to developing safe, effective and transformative therapies for patients with rare diseases and limited or no treatment options. We understand the importance of bringing these therapies to the broadest group of patients as quickly as possible. We believe that the best path to potential regulatory approval, and subsequent access for the greatest number of patients, is by executing our clinical studies as efficiently as possible. Clinical studies collect the information necessary to understand the safety and efficacy of the potential therapy allowing for regulatory review and potential approval.

After careful deliberation, we have determined that at this point in time, we must focus our efforts on conducting our clinical trials as efficiently as possible. Therefore, participation in 4DMT clinical trials is the only way for patients to gain access to 4DMT’s investigational therapies currently early in development. We will continually evaluate the possibility of compassionate use, “Right to Try” and other expanded access programs.

Investigational drugs have not yet been approved by FDA or other regulatory agencies. Furthermore, investigational drugs may, or may not, be effective in the treatment of a condition, and use of the product may cause unexpected serious side effects.


We believe in the importance of collaborating closely with patients, their families, patient advocacy organizations, physicians, researchers and regulatory authorities to help achieve our goals together.

Treating physicians, patients and/or caregivers interested in learning more about 4D Molecular Therapeutics’ investigational genetic medicines currently undergoing clinical studies can find more information at www.clinicaltrials.gov.

For parents or patients interested in general information, please contact Patient Advocacy at info@4DMT.com and talk with your treating physician.


The list below is a starting point for people with diseases for which we are investigating potential therapies. Use these links to learn more about the condition and about available support and advocacy resources. Note these are all third-party (i.e. not 4DMT-sponsored) websites. Also note this list does not include all available resources.


A good source for disease information is MedlinePlus. Click or tap on the button below and then enter the disease you’re interested into the search bar. Also at the end of many of their fact sheets are listings of other reputable sources of information.

Mayo Clinic
The Mayo Clinic is a similar source of information. Again, click or tap on the button below and then enter the disease you’re interested into the search bar.