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A Study of Inhaled KB407 for the Treatment of Cystic Fibrosis

Primary Purpose

Cystic Fibrosis

Status
Withdrawn
Phase
Phase 1
Locations
Australia
Study Type
Interventional
Intervention
KB407 (Nebulization)
Sponsored by
Krystal Biotech, Inc.
About
Eligibility
Locations
Arms
Outcomes
Full info

About this trial

This is an interventional treatment trial for Cystic Fibrosis

Eligibility Criteria

18 Years - undefined (Adult, Older Adult)All SexesDoes not accept healthy volunteers

Inclusion Criteria:

  1. The subject or legally appointed and authorized representative must have read, understood and signed an Institutional Review Board/Ethics Committee (IRB/EC) approved Informed Consent Form and must be able to and willing to follow study procedures and instructions.
  2. Male or female subject aged 18 years old or older at the time of Informed Consent.
  3. A confirmed diagnosis of cystic fibrosis (CF) that is clinically stable, in the opinion of the Investigator.
  4. FEV1 ≥50% and ≤100% of the predicted normal for age, gender, and height at Visit 1 (Screening).

Exclusion Criteria:

  1. Initiation of any new chronic therapy (e.g., ibuprofen, hypertonic saline, azithromycin, Pulmozyme®, Cayston®, TOBI®) or any change in chronic therapy (excluding pancreatic enzyme replacement therapy) within 28 days of Visit 2 (Day 0).
  2. Hospitalization, sinopulmonary infection, CF exacerbation, or other clinically significant infection or illness within 14 days of Visit 2 (Day 0) that, in the opinion of the Investigator, may confound study results.
  3. A positive culture (saliva or sputum) indicating infection with highly virulent bacteria associated with accelerated decline in pulmonary function and/or decreased survival (e.g., Burkholderia cenocepacia, Burkholderia dolosa, Mycobacterium abscessus) within 6-months of Visit 2 (Day 0).
  4. Participation in another clinical study or treatment with an investigational agent within 30 days or 5 half-lives, whichever is longer, of Visit 2 (Day 0).
  5. History of lung transplantation.
  6. Any condition (including a history or current evidence of substance abuse or dependence) that, in the opinion of the Investigator, would impact a subject's ability to complete all study-related procedures and/or poses an additional risk to the assessment of safety of the Investigational Product (IP).
  7. An active oral herpes infection within 30 Days of Visit 2 (Day 0).
  8. Women who are pregnant or nursing.
  9. Subject who is unwilling to comply with contraception requirements per-protocol.
  10. Clinically significant abnormalities of hematology or chemistry testing at Visit 1 (Screening) that the Investigator believes may interfere with the assessment of safety and/or efficacy of the study treatment.
  11. Subject is known to be noncompliant or is unlikely to comply with the requirements of the study protocol, in the opinion of the Investigator.

Sites / Locations

  • Hunter Medical Research Institute

Arms of the Study

Arm 1

Arm 2

Arm 3

Arm Type

Experimental

Experimental

Experimental

Arm Label

Cohort 1 (KB407)

Cohort 2 (KB407)

Cohort 3 (KB407)

Arm Description

A single dose of KB407 administered on Day 0

Two (2) doses of KB407 administered at Day 0 and Day 14

Four (4) doses of KB407 administered at Day 0, Day 7, Day 14, and Day 21

Outcomes

Primary Outcome Measures

To evaluate the safety and tolerability of KB407 in subjects with Cystic Fibrosis through adverse events as assessed by NCI-CTCAE v5.0
Number of participants with treatment related adverse events as assessed by NCI-CTCAE v5.0

Secondary Outcome Measures

To measure the difference in lung function over the course of the study, by change from baseline in forced expiratory volume (FEV1).
Assessment of forced expiratory volume, in one second (FEV1,) will be assessed by pulmonary function test (PFT) as compared to baseline.

Full Information

First Posted
August 27, 2021
Last Updated
August 9, 2023
Sponsor
Krystal Biotech, Inc.
Collaborators
Novotech (Australia) Pty Limited
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1. Study Identification

Unique Protocol Identification Number
NCT05095246
Brief Title
A Study of Inhaled KB407 for the Treatment of Cystic Fibrosis
Official Title
A Phase I Study of Inhaled KB407, a Replication-Incompetent, Non-Integrating Vector Expressing Human Cystic Fibrosis Transmembrane Conductance Regulator (CFTR), for the Treatment of Cystic Fibrosis
Study Type
Interventional

2. Study Status

Record Verification Date
August 2023
Overall Recruitment Status
Withdrawn
Why Stopped
Pandemic, logistical, and recruitment challenges
Study Start Date
March 8, 2022 (Actual)
Primary Completion Date
July 1, 2024 (Anticipated)
Study Completion Date
October 30, 2024 (Anticipated)

3. Sponsor/Collaborators

Responsible Party, by Official Title
Sponsor
Name of the Sponsor
Krystal Biotech, Inc.
Collaborators
Novotech (Australia) Pty Limited

4. Oversight

Studies a U.S. FDA-regulated Drug Product
No
Studies a U.S. FDA-regulated Device Product
No
Data Monitoring Committee
Yes

5. Study Description

Brief Summary
The Sponsor is developing KB407, a replication-defective, non-integrating herpes simplex virus type 1 (HSV-1)-derived vector engineered to deliver functional full-length human Cystic Fibrosis Transmembrane Conductance Regulator (CFTR) to the airways of people with cystic fibrosis via nebulization. This study is designed to evaluate safety and tolerability of KB407 in people with cystic fibrosis. This study will enroll 4 participants into each of the first two cohorts and will enroll five subjects into the last cohort. Cohort 1 will receive a single dose of KB407 and be followed for 60 days. Subjects in Cohort 1 may rollover into Cohort 2 at the Day 28 Visit. A Data Safety Monitoring Board (DSMB) will meet to determine study progress from Cohort 2 into Cohort 3. In Cohort 2, subjects will be dosed bi-weekly at Day 0 and Day 14. In Cohort 3 subjects will be dosed weekly at Day 0, Day 7, Day 14 and Day 21. All subjects will be followed for a year after the last dose of KB407.

6. Conditions and Keywords

Primary Disease or Condition Being Studied in the Trial, or the Focus of the Study
Cystic Fibrosis

7. Study Design

Primary Purpose
Treatment
Study Phase
Phase 1
Interventional Study Model
Sequential Assignment
Masking
None (Open Label)
Allocation
Non-Randomized
Enrollment
0 (Actual)

8. Arms, Groups, and Interventions

Arm Title
Cohort 1 (KB407)
Arm Type
Experimental
Arm Description
A single dose of KB407 administered on Day 0
Arm Title
Cohort 2 (KB407)
Arm Type
Experimental
Arm Description
Two (2) doses of KB407 administered at Day 0 and Day 14
Arm Title
Cohort 3 (KB407)
Arm Type
Experimental
Arm Description
Four (4) doses of KB407 administered at Day 0, Day 7, Day 14, and Day 21
Intervention Type
Biological
Intervention Name(s)
KB407 (Nebulization)
Intervention Description
Nebulized solution of KB407, a replication-incompetent HSV-1 expressing full length human CFTR
Primary Outcome Measure Information:
Title
To evaluate the safety and tolerability of KB407 in subjects with Cystic Fibrosis through adverse events as assessed by NCI-CTCAE v5.0
Description
Number of participants with treatment related adverse events as assessed by NCI-CTCAE v5.0
Time Frame
Baseline to End of the treatment assessed up to an average of 60 days
Secondary Outcome Measure Information:
Title
To measure the difference in lung function over the course of the study, by change from baseline in forced expiratory volume (FEV1).
Description
Assessment of forced expiratory volume, in one second (FEV1,) will be assessed by pulmonary function test (PFT) as compared to baseline.
Time Frame
Baseline to End of the treatment up to an average of 60 days

10. Eligibility

Sex
All
Minimum Age & Unit of Time
18 Years
Accepts Healthy Volunteers
No
Eligibility Criteria
Inclusion Criteria: The subject or legally appointed and authorized representative must have read, understood and signed an Institutional Review Board/Ethics Committee (IRB/EC) approved Informed Consent Form and must be able to and willing to follow study procedures and instructions. Male or female subject aged 18 years old or older at the time of Informed Consent. A confirmed diagnosis of cystic fibrosis (CF) that is clinically stable, in the opinion of the Investigator. FEV1 ≥50% and ≤100% of the predicted normal for age, gender, and height at Visit 1 (Screening). Exclusion Criteria: Initiation of any new chronic therapy (e.g., ibuprofen, hypertonic saline, azithromycin, Pulmozyme®, Cayston®, TOBI®) or any change in chronic therapy (excluding pancreatic enzyme replacement therapy) within 28 days of Visit 2 (Day 0). Hospitalization, sinopulmonary infection, CF exacerbation, or other clinically significant infection or illness within 14 days of Visit 2 (Day 0) that, in the opinion of the Investigator, may confound study results. A positive culture (saliva or sputum) indicating infection with highly virulent bacteria associated with accelerated decline in pulmonary function and/or decreased survival (e.g., Burkholderia cenocepacia, Burkholderia dolosa, Mycobacterium abscessus) within 6-months of Visit 2 (Day 0). Participation in another clinical study or treatment with an investigational agent within 30 days or 5 half-lives, whichever is longer, of Visit 2 (Day 0). History of lung transplantation. Any condition (including a history or current evidence of substance abuse or dependence) that, in the opinion of the Investigator, would impact a subject's ability to complete all study-related procedures and/or poses an additional risk to the assessment of safety of the Investigational Product (IP). An active oral herpes infection within 30 Days of Visit 2 (Day 0). Women who are pregnant or nursing. Subject who is unwilling to comply with contraception requirements per-protocol. Clinically significant abnormalities of hematology or chemistry testing at Visit 1 (Screening) that the Investigator believes may interfere with the assessment of safety and/or efficacy of the study treatment. Subject is known to be noncompliant or is unlikely to comply with the requirements of the study protocol, in the opinion of the Investigator.
Facility Information:
Facility Name
Hunter Medical Research Institute
City
Newcastle
State/Province
New South Wales
ZIP/Postal Code
2305
Country
Australia

12. IPD Sharing Statement

Plan to Share IPD
No

Learn more about this trial

A Study of Inhaled KB407 for the Treatment of Cystic Fibrosis

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