Purpose

This is a Phase 1/2 multicenter, open-label, single dose trial of 4D-710 investigational gene therapy in adults with CF who are ineligible for or unable to tolerate CFTR modulator therapy.

Condition

Eligibility

Eligible Ages
Over 18 Years
Eligible Genders
All
Accepts Healthy Volunteers
No

Inclusion Criteria

  1. 18 years and older 2. Confirmed diagnosis of cystic fibrosis (CF) and CF lung disease including: 1. Sweat chloride ≥ 60 mmol/L 2. Mutation Status - Bi-allelic mutations in the CFTR gene, or - Single mutation in the CFTR gene and clinical manifestations of CF lung disease 3. Ineligible for CFTR modulator therapy, or previously received modulator therapy but discontinued due to adverse effects. 3. Forced expiratory volume in 1 second (FEV1) ≥50% and ≤100% of predicted (per Global Lung Function Initiative) at Screening 4. Resting oxygen saturation ≥ 92% on room air at Screening

Exclusion Criteria

  1. Any prior gene therapy for any indication (Exception: mRNA-based therapies are not exclusionary) 2. Active Mycobacterium abscessus infection requiring ongoing treatment at Screening 3. Active allergic bronchopulmonary aspergillosis requiring management with systemic corticosteroids or antifungal therapy 4. Two or more pulmonary exacerbations requiring treatment with intravenous (IV) antibiotics within 6 months prior to Screening 5. Contraindication to systemic corticosteroid therapy 6. Requires chronic use of systemic corticosteroids or immunosuppressants to treat another condition 7. If no known diagnosis of cystic fibrosis related diabetes (CFRD), Type I, or Type II diabetes: Hemoglobin A1C ≥6.5% at Screening 8. If known diagnosis of CFRD, Type I or Type II diabetes: Hemoglobin A1C >7.5% at Screening 9. Recent history of symptomatic hyperglycemia or unstable blood glucose levels as per Investigator's assessment 10. Other conditions that, in the Investigator's opinion, may interfere with management of corticosteroid-related hyperglycemia 11. Body Mass Index (BMI) <16 12. Laboratory abnormalities at screening: - ALT, AST or GGT ≥ 3 × the upper limit of normal (ULN) - Total bilirubin ≥ 2 × ULN - Hemoglobin < 10 g/dL 13. Requirement for continuous or night-time oxygen supplementation 14. Known CF liver disease with evidence of cirrhosis 15. History of thrombosis (excluding catheter-related thrombosis) or conditions associated with increased risk of thrombosis

Study Design

Phase
Phase 1/Phase 2
Study Type
Interventional
Allocation
Non-Randomized
Intervention Model
Sequential Assignment
Primary Purpose
Treatment
Masking
None (Open Label)

Arm Groups

ArmDescriptionAssigned Intervention
Experimental
4D-710 Dose Exploration Cohort 1
Single inhalational administration of 4D-710 Dose 1
  • Biological: 4D-710
    4D-710 is an adeno-associated virus (AAV) gene therapy comprised of an AAV capsid variant (4D-A101) carrying a transgene cassette encoding human cystic fibrosis transmembrane conductance regulator with a deletion in the regulatory domain (CFTRΔR).
Experimental
4D-710 Dose Exploration Cohort 2
Single inhalational administration of 4D-710 Dose 2
  • Biological: 4D-710
    4D-710 is an adeno-associated virus (AAV) gene therapy comprised of an AAV capsid variant (4D-A101) carrying a transgene cassette encoding human cystic fibrosis transmembrane conductance regulator with a deletion in the regulatory domain (CFTRΔR).
Experimental
4D-710 Dose Exploration Cohort 3
Single inhalational administration of 4D-710 Dose 3
  • Biological: 4D-710
    4D-710 is an adeno-associated virus (AAV) gene therapy comprised of an AAV capsid variant (4D-A101) carrying a transgene cassette encoding human cystic fibrosis transmembrane conductance regulator with a deletion in the regulatory domain (CFTRΔR).
Experimental
4D-710 Dose Exploration Cohort 4
Single inhalational administration of 4D-710 Dose 4
  • Biological: 4D-710
    4D-710 is an adeno-associated virus (AAV) gene therapy comprised of an AAV capsid variant (4D-A101) carrying a transgene cassette encoding human cystic fibrosis transmembrane conductance regulator with a deletion in the regulatory domain (CFTRΔR).
Experimental
4D-710 Dose Expansion Cohort
Single inhalational administration of 4D-710 at the selected dose
  • Biological: 4D-710
    4D-710 is an adeno-associated virus (AAV) gene therapy comprised of an AAV capsid variant (4D-A101) carrying a transgene cassette encoding human cystic fibrosis transmembrane conductance regulator with a deletion in the regulatory domain (CFTRΔR).

Recruiting Locations

University of Kansas Medical Center
Kansas City, Kansas 66160
Contact:
Lawrence Scott
lscott2@kumc.edu

More Details

Status
Recruiting
Sponsor
4D Molecular Therapeutics

Study Contact

4DMT Patient Advocacy
(888) 748-8881
clinicaltrials@4DMT.com

Detailed Description

This Phase 1/2 trial will evaluate the safety, tolerability, and preliminary efficacy of 4 dose levels of 4D-710, an investigational gene therapy, in adults with cystic fibrosis lung disease who are ineligible or unable to tolerate CFTR modulator therapy.

Notice

Study information shown on this site is derived from ClinicalTrials.gov (a public registry operated by the National Institutes of Health). The listing of studies provided is not certain to be all studies for which you might be eligible. Furthermore, study eligibility requirements can be difficult to understand and may change over time, so it is wise to speak with your medical care provider and individual research study teams when making decisions related to participation.