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Topical KB105 Gene Therapy for the Treatment of TGM1-deficient Autosomal Recessive Congenital Ichthyosis (ARCI)

Primary Purpose

TGM-1 Related Autosomal Recessive Congenital Ichthyosis

Status
Active
Phase
Phase 1
Locations
United States
Study Type
Interventional
Intervention
KB105
Sponsored by
Krystal Biotech, Inc.
About
Eligibility
Locations
Arms
Outcomes
Full info

About this trial

This is an interventional treatment trial for TGM-1 Related Autosomal Recessive Congenital Ichthyosis

Eligibility Criteria

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

Inclusion Criteria:

  • Genetic diagnosis of TGM1-deficient ARCI with a null TGM-1 mutation;
  • Clinical diagnosis of lamellar ichthyosis;
  • Age: 18 years old or older;
  • Individual site IGA score of 3 to 4 at the target areas
  • Subject is, in the opinion of the Investigator, able to understand thestudy, cooperate with the study procedures, and is willing to return to the clinic for all required follow-up visits;
  • Except for their moderate-to-severe ARCI, subject is in good general health; and
  • Willing and able to give consent/assent.

Exclusion Criteria:

  • Medical instability limiting ability to travel to the investigative center;
  • Medical illness expected to complicate participation, such as an active infection with: HIV, hepatitis B (as determined by hepatitis B surface antigen screening), hepatitis C (as determined by detection of hepatitis C antibodies or a positive result of hepatitis C);
  • Patient has a physical condition or other dermatological disorder (e.g., atopic, seborrheic, or contact dermatitis, psoriasis, tinea infections, etc.) which, in the Investigator's opinion, might impair evaluation of the Target Areas or which exposes the patient to unacceptable risk by study participation;
  • Pregnant or breast-feeding women, or women planning to become pregnant or to breast-feed. Women of childbearing potential must have a negative urine pregnancy test at the Screening visit and Day 1 visit and must commit to using an acceptable form of contraception during the entire study period, up to three months after last KB105 administration. Women using oral contraception must also have done so for 3 months prior to Baseline or will be willing to use a combination of barrier methods. To be considered not of childbearing potential, women must be post-menopausal for at least 1 year or surgically sterile
  • Known allergy to any of the constituents of the product
  • Hypersensitivity to local anesthesia (e.g., lidocaine/prilocainecream)
  • Current enrollment in a clinical trial
  • Treatment with an investigational drug or investigational device within 30 days prior to Day 1
  • Male who is not surgically sterile nor willing to use effective forms of contraception from Day 1 until 3 months following the last dose of study drug.
  • 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

  • Northwestern University
  • Paddington Testing Company, Inc.

Arms of the Study

Arm 1

Arm Type

Experimental

Arm Label

Topical KB105

Arm Description

HSV1-TGM1 vector (KB105)

Outcomes

Primary Outcome Measures

Safety and tolerability
Incidence of treatment-emergent adverse events
Investigator's Global Assessment (IGA) of disease severity
Improvement of disease severity in the treatment area assessment through Investigator's Global Assessment (IGA)

Secondary Outcome Measures

Visual Index for Ichthyosis Severity (VIIS) scale, lamellar (L) standard
Improvement of disease severity in the treatment area through use of the Visual Index for Ichthyosis Severity scale, lamellar (VIIS-L) standard assessment. The VIIS-L is a 4-point visual scale with 1 representing normal skin and 5 representing severe ichthyosis.
Immunofluorescence microscopy
Level of transglutaminase 1 in KB105-administered skin as measured by immunofluorescence microscopy

Full Information

First Posted
July 29, 2019
Last Updated
September 10, 2021
Sponsor
Krystal Biotech, Inc.
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1. Study Identification

Unique Protocol Identification Number
NCT04047732
Brief Title
Topical KB105 Gene Therapy for the Treatment of TGM1-deficient Autosomal Recessive Congenital Ichthyosis (ARCI)
Official Title
A Phase I/II Clinical Trial of Topical KB105, a Replication-incompetent, Non-integrating HSV-1 Vector Expressing Human Transglutaminase 1 (TGM1) for the Treatment of TGM1-deficient Autosomal Recessive Congenital Ichthyosis (ARCI)
Study Type
Interventional

2. Study Status

Record Verification Date
September 2021
Overall Recruitment Status
Active, not recruiting
Study Start Date
August 27, 2019 (Actual)
Primary Completion Date
October 2022 (Anticipated)
Study Completion Date
March 2025 (Anticipated)

3. Sponsor/Collaborators

Responsible Party, by Official Title
Sponsor
Name of the Sponsor
Krystal Biotech, Inc.

4. Oversight

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

5. Study Description

Brief Summary
This study is an intra-patient comparison of KB105 and placebo-administered Target Areas. The primary objectives of this study are to evaluate safety and Investigator Global Assessment (IGA) scale improvement of topically administered KB105.
Detailed Description
Up to six adult subjects are planned for the Phase I portion of this study. Subjects are enrolled upon obtaining consent and meeting entry criteria. This study is an intra-patient comparison of KB105 and placebo-administered Target Areas. Patients will be evaluated for safety, and Target Areas will be assessed individually with the IGA and VIIS scales. Target Areas will be imaged and evaluated for safety and efficacy. Subjects will be on-trial for approximately 3.5 months.

6. Conditions and Keywords

Primary Disease or Condition Being Studied in the Trial, or the Focus of the Study
TGM-1 Related Autosomal Recessive Congenital Ichthyosis

7. Study Design

Primary Purpose
Treatment
Study Phase
Phase 1, Phase 2
Interventional Study Model
Single Group Assignment
Masking
None (Open Label)
Allocation
N/A
Enrollment
6 (Anticipated)

8. Arms, Groups, and Interventions

Arm Title
Topical KB105
Arm Type
Experimental
Arm Description
HSV1-TGM1 vector (KB105)
Intervention Type
Biological
Intervention Name(s)
KB105
Other Intervention Name(s)
HSV1-TGM1
Intervention Description
KB105, a replication-incompetent, non-integrating HSV-1 vector expressing human transglutaminase 1 (TGM1) formulated as a topical gel
Primary Outcome Measure Information:
Title
Safety and tolerability
Description
Incidence of treatment-emergent adverse events
Time Frame
Up to 12 weeks
Title
Investigator's Global Assessment (IGA) of disease severity
Description
Improvement of disease severity in the treatment area assessment through Investigator's Global Assessment (IGA)
Time Frame
Up to 12 weeks
Secondary Outcome Measure Information:
Title
Visual Index for Ichthyosis Severity (VIIS) scale, lamellar (L) standard
Description
Improvement of disease severity in the treatment area through use of the Visual Index for Ichthyosis Severity scale, lamellar (VIIS-L) standard assessment. The VIIS-L is a 4-point visual scale with 1 representing normal skin and 5 representing severe ichthyosis.
Time Frame
Up to 12 weeks
Title
Immunofluorescence microscopy
Description
Level of transglutaminase 1 in KB105-administered skin as measured by immunofluorescence microscopy
Time Frame
Up to 12 weeks

10. Eligibility

Sex
All
Minimum Age & Unit of Time
18 Years
Accepts Healthy Volunteers
No
Eligibility Criteria
Inclusion Criteria: Genetic diagnosis of TGM1-deficient ARCI with a null TGM-1 mutation; Clinical diagnosis of lamellar ichthyosis; Age: 18 years old or older; Individual site IGA score of 3 to 4 at the target areas Subject is, in the opinion of the Investigator, able to understand thestudy, cooperate with the study procedures, and is willing to return to the clinic for all required follow-up visits; Except for their moderate-to-severe ARCI, subject is in good general health; and Willing and able to give consent/assent. Exclusion Criteria: Medical instability limiting ability to travel to the investigative center; Medical illness expected to complicate participation, such as an active infection with: HIV, hepatitis B (as determined by hepatitis B surface antigen screening), hepatitis C (as determined by detection of hepatitis C antibodies or a positive result of hepatitis C); Patient has a physical condition or other dermatological disorder (e.g., atopic, seborrheic, or contact dermatitis, psoriasis, tinea infections, etc.) which, in the Investigator's opinion, might impair evaluation of the Target Areas or which exposes the patient to unacceptable risk by study participation; Pregnant or breast-feeding women, or women planning to become pregnant or to breast-feed. Women of childbearing potential must have a negative urine pregnancy test at the Screening visit and Day 1 visit and must commit to using an acceptable form of contraception during the entire study period, up to three months after last KB105 administration. Women using oral contraception must also have done so for 3 months prior to Baseline or will be willing to use a combination of barrier methods. To be considered not of childbearing potential, women must be post-menopausal for at least 1 year or surgically sterile Known allergy to any of the constituents of the product Hypersensitivity to local anesthesia (e.g., lidocaine/prilocainecream) Current enrollment in a clinical trial Treatment with an investigational drug or investigational device within 30 days prior to Day 1 Male who is not surgically sterile nor willing to use effective forms of contraception from Day 1 until 3 months following the last dose of study drug. 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
Northwestern University
City
Chicago
State/Province
Illinois
ZIP/Postal Code
60611
Country
United States
Facility Name
Paddington Testing Company, Inc.
City
Philadelphia
State/Province
Pennsylvania
ZIP/Postal Code
19103
Country
United States

12. IPD Sharing Statement

Plan to Share IPD
No

Learn more about this trial

Topical KB105 Gene Therapy for the Treatment of TGM1-deficient Autosomal Recessive Congenital Ichthyosis (ARCI)

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