Clinical trial Recruiting at 4 sites Phase1; Phase2 Interventional Ages 18 to 65

Investigating SP-101 gene therapy for cystic fibrosis

Official title: A Single Ascending Dose, Phase 1/2 Trial to Evaluate the Safety, Pharmacokinetics, and Pharmacodynamics of SP-101 Via Nebulizer for the Treatment of Cystic Fibrosis (CF)

Run by Spirovant Sciences, Inc. · NCT06526923 · Data updated 2026-11-12

This study is testing a new gene therapy called SP-101 to see if it can help adults with cystic fibrosis who can't use standard treatments.

More Cystic Fibrosis trials

Quick facts

PhasePhase1; Phase2
Study typeInterventional
Ages18 Years to 65 Years
SexAll
Enrollment15 (estimated)
SponsorSpirovant Sciences, Inc.
Industry-sponsored
Drugs / interventionsdoxorubicin
Locations4 sites (Kansas City, Kansas and 3 other locations)
StatusRecruiting
StartedSeptember 16, 2024
Main results expectedDecember 31, 2026
Study endsDecember 31, 2026
Registry record updatedNovember 25, 2024
Trial IDNCT06526923 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates are adults aged 18 to 65 with a confirmed diagnosis of cystic fibrosis and stable disease who are ineligible for or intolerant to existing CFTR modulator therapies.

Probably not a fit

Patients with significant lung infections or those requiring new interventional treatments may not benefit from this study.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This Phase 1/2 multicenter trial evaluates the safety and effectiveness of SP-101, an investigational gene therapy, in adults with cystic fibrosis who cannot tolerate or are ineligible for CFTR modulator therapy. The study involves administering single ascending doses of SP-101 alongside doxorubicin to assess pharmacokinetics and pharmacodynamics. Participants will be closely monitored for safety and clinical outcomes throughout the trial.

Why it matters

Potential benefit: If successful, this therapy could provide a new treatment option for cystic fibrosis patients who currently have limited alternatives.

How similar studies have gone: While gene therapy approaches for cystic fibrosis are being explored, this specific trial represents a novel application of SP-101 and has not been previously tested in this context.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

1. Males or females, age 18 to 65 years at Screening Visit, inclusive
2. Diagnosis of CF
3. ppFEV1 value between 50-100% (inclusive)
4. Resting oxygen saturation ≥94% on room air by pulse oximetry 5 . Clinically stable CF disease as assessed by the Investigator and not requiring any new class of interventional treatment within the last 3 months prior to Screening

Exclusion Criteria:

1. Any change in established pulmonary treatment (including antibiotics) within 28 days prior to Screening Visit. However, inhaled beta-agonists can be included within 2 weeks prior to Screening Visit.
2. Clinically significant episode of hemoptysis (\>50 mL or ¼ cup or 10 teaspoons per day) within 12 weeks prior to dosing with study drug on Day 1
3. Lung infection with Mycobacterium abscessus associated with a more rapid decline in pulmonary status
4. Currently receiving treatment for active lung infection with Burkholderia cenocepacia or Burkholderia dolosa
5. History of solid organ or hematological transplantation
6. History of clinically significant cirrhosis with or without portal hypertension
7. History of pulmonary hypertension
8. History of cardiotoxicity, a history of known coronary artery disease, and/or existing cardiomyopathy
9. Current active fungal infection (not just a positive culture), acute blood, lung, or bladder infection, clinically significant hepatic or renal dysfunction, and/or viral infection (including human immunodeficiency virus or hepatitis virus B or C) requiring the initiation of new therapy within 30 days prior to Screening
10. History of allergic bronchopulmonary aspergillosis (ABPA)
11. Uncontrolled diabetes mellitus, as evidenced by hemoglobin A1c \>9% at Screening
12. Clinically significant laboratory abnormalities at Screening
13. Subjects with any medical condition or abnormal laboratory result that, in the opinion of the Investigator, will interfere with the safe completion of the study
14. Subjects who received any investigational products within 30 days (or 5 therapeutic half-lives, whichever is longer) prior to Screening
15. Subjects who have previously received any gene therapy agent
16. Subjects with known sensitivity to SP-101, doxorubicin or its excipients

Where it's running

  • University of Kansas Medical Center
    Kansas City, Kansas, United States
    Recruiting
  • Boston Children's Hospital, Brigham & Women's Hospital
    Boston, Massachusetts, United States
    Recruiting
  • Columbia University
    New York, New York, United States
    Recruiting
  • Hospital at University of Pennsylvania
    Philadelphia, Pennsylvania, United States
    Recruiting

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
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Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.