Phase I Randomized Study of Adeno-Associated Virus-CFTR Vector in Patients With Cystic Fibrosis

Study Overview
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Brief Summary
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OBJECTIVES: I. Determine the maximum tolerated dose of recombinant adeno-associated virus-CFTR vector in patients with cystic fibrosis. II. Assess the safety of this gene therapy in these patients. III. Assess the in vivo gene transfer of this vector in these patients. IV. Assess the CFTR gene expression and physiologic activity following gene transfer in these patients. V. Assess the clinical impact of CFTR gene expression following gene transfer in these patients. VI. Monitor patient immune response directed against CFTR or vector components following vector administration.

Detailed Description
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PROTOCOL OUTLINE: This is a randomized, dose escalation, double blind, placebo controlled, multicenter study. Patients are randomized to receive either adeno-associated virus-CFTR (AAV-CFTR) vector or placebo. Patients undergo tests on days -10 to -4 to rule out adenovirus and adeno-associated virus infections. Patients then receive AAV-CFTR vector intranasally to the right or left inferior turbinates and placebo to the other side of the nose. The next day, patients receive an endobronchial dose of AAV-CFTR vector to the superior segment of the right lower lobe. Cohorts of 2-4 patients each receive escalating doses of AAV-CFTR vector until the maximum tolerated dose (MTD) is determined. The MTD is defined as the dose level immediately preceding the dose at which at least 2 subjects develop dose limiting toxicity. Patients are followed at day 10, then at 1, 2, 3, 6, 9, and 12 months.

Official Title
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Phase I Randomized Study of Adeno-Associated Virus-CFTR Vector in Patients With Cystic Fibrosis

Conditions
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Cystic Fibrosis

Intervention / Treatment
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* Drug: Adeno-associated virus-CFTR vector


Participation Criteria
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Eligibility Criteria
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PROTOCOL ENTRY CRITERIA: --Disease Characteristics-- Diagnosis of cystic fibrosis (CF) with mild to moderate lung disease; FVC at least 60% predicted; Schwachman-Kulczycki score at least 65; Sweat chloride greater than 60 mEq/L All CF genotypes allowed No sputum colonization with Burkholderia cepacia or another multiply resistant organism No recurrent or intermittent hemoptysis; At least 1 year since significant hemoptysis requiring transfusion or embolization OR Coughing of greater than 30 mL of blood more often than once a week --Prior/Concurrent Therapy-- At least 30 days since hospitalization or home intravenous antibiotic therapy for pulmonary exacerbation No concurrent investigational drugs or therapy --Patient Characteristics-- Other: No concurrent cigarette smoking; Not pregnant or nursing; Negative pregnancy test; Fertile patients must use effective contraception

Ages Eligible for Study
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Minimum Age: 15 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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No

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Treatment
Allocation: Randomized
Masking: Double


Arms and Interventions

| Intervention/Treatment |
| --- |
|Drug: Adeno-associated virus-CFTR vector|nan|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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cardiovascular and respiratory diseases, cystic fibrosis, genetic diseases and dysmorphic syndromes, rare disease