A Study Assessing KB707 for the Treatment of Locally Advanced or Metastatic Solid Tumors

Sponsor
Krystal Biotech, Inc. (Industry)
Overall Status
Not yet recruiting
CT.gov ID
NCT05970497
Collaborator
(none)
80
2
36

Study Details

Study Description

Brief Summary

KB707-01 is a Phase 1, open-label, multicenter, dose escalation and expansion study to evaluate the safety and tolerability of KB707 in adults with locally advanced or metastatic solid tumors who have progressed on standard of care therapy, cannot tolerate standard of care therapy, refused standard of care therapy, or for whom there is no standard of care therapy. In this study, patients will receive KB707 via direct intratumoral (IT) injection into solid tumors to assess the safety and tolerability as well preliminary efficacy of KB707 monotherapy treatment.

Condition or Disease Intervention/Treatment Phase
  • Biological: KB707
Early Phase 1

Detailed Description

KB707 is a genetically modified herpes simplex type 1 virus that is designed to stimulate an anti-tumor immune response through the production of cytokines. This is a first-in-human (FIH) clinical study to evaluate the safety and tolerability, biodistribution, shedding, and preliminary efficacy of KB707 in adult subjects with advanced and/or refractory solid tumors. The study will include a dose escalation portion for single agent KB707 and an expansion portion to further evaluate single agent KB707 at a dose determined by preliminary data in the dose escalation phase.

Study Design

Study Type:
Interventional
Anticipated Enrollment :
80 participants
Allocation:
Non-Randomized
Intervention Model:
Sequential Assignment
Masking:
None (Open Label)
Primary Purpose:
Treatment
Official Title:
A Phase 1, Open-Label, Multi-Center, Dose Escalation and Expansion Study of KB707 in Subjects With Locally Advanced or Metastatic Solid Tumor Malignancies
Anticipated Study Start Date :
Jul 1, 2023
Anticipated Primary Completion Date :
Jul 1, 2026
Anticipated Study Completion Date :
Jul 1, 2026

Arms and Interventions

Arm Intervention/Treatment
Experimental: Dose escalation of KB707 by intratumoral (IT) injection in solid tumors

Dose escalation of single-agent KB707 in 3 cohorts by IT injection

Biological: KB707
Genetically modified herpes simplex type 1 virus

Experimental: Dose expansion of KB707 by IT injection

Dose escalation of single-agent KB707 in superficial and deep/visceral solid tumors

Biological: KB707
Genetically modified herpes simplex type 1 virus

Outcome Measures

Primary Outcome Measures

  1. Percentage of adverse events (AEs) [up to 36 months]

    Percentage of subjects with adverse events (AEs)

  2. Percentage of serious adverse events (SAEs) [up to 36 months]

    Percentage of subjects with serious adverse events (SAEs)

Secondary Outcome Measures

  1. Maximum tolerated dose (MTD) [up to 36 months]

    Assess whether the tested doses include the maximum tolerated dose (MTD) of KB707 based on the safety and response data collected during the dose escalation portion of the study

  2. Percentage of overall response rate (ORR) [up to 36 months]

    Percentage of ORR

Eligibility Criteria

Criteria

Ages Eligible for Study:
18 Years and Older
Sexes Eligible for Study:
All
Accepts Healthy Volunteers:
No
Key Inclusion Criteria:
  • Histologically confirmed diagnosis of a locally advanced or metastatic solid tumor and the individual has progressed on standard of care therapy, cannot tolerate standard of care therapy, refused standard of care therapy, or there is no standard of care therapy.

  • Age 18 years or older at the time of informed consent

  • Life expectancy >12 weeks

  • ECOG performance status of 0 or 1

  • Have at least one measurable and injectable tumor that is accessible by transcutaneous administration

Key Exclusion Criteria:
  • Prior oncology therapy (chemotherapy, immunotherapy, biological therapy) or use of an investigational agent or an investigational device within 21 days or 5 half-lives before administration of first dose of KB707, whichever is shorter

  • The subject is pregnant, nursing, or plans to become pregnant during study treatment and through three months after the last dose of KB707

  • Have known history of positive human immunodeficiency virus (HIV 1/2)

Contacts and Locations

Locations

No locations specified.

Sponsors and Collaborators

  • Krystal Biotech, Inc.

Investigators

  • Study Director: David Chien, MD, Senior Vice President of Clinical Development

Study Documents (Full-Text)

None provided.

More Information

Publications

None provided.
Responsible Party:
Krystal Biotech, Inc.
ClinicalTrials.gov Identifier:
NCT05970497
Other Study ID Numbers:
  • KB707-01
First Posted:
Aug 1, 2023
Last Update Posted:
Aug 1, 2023
Last Verified:
Jul 1, 2023
Studies a U.S. FDA-regulated Drug Product:
Yes
Studies a U.S. FDA-regulated Device Product:
No
Additional relevant MeSH terms:

Study Results

No Results Posted as of Aug 1, 2023