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

NCT ID: NCT05970497

Last Updated: 2025-05-18

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

RECRUITING

Clinical Phase

PHASE1/PHASE2

Total Enrollment

240 participants

Study Classification

INTERVENTIONAL

Study Start Date

2023-10-31

Study Completion Date

2027-07-31

Brief Summary

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KB707-01 is a Phase 1/2, open-label, multicenter, dose escalation and expansion study. The study will 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 as well as the safety, tolerability, preliminary efficacy, and immunologic effect of KB707 administered in combination with Opdualag to subjects with unresectable or metastatic melanoma.

Subjects in dose escalation (Cohorts 1 through 3) and dose expansion (Cohort 4) will receive intratumoral injections of KB707 approximately every three weeks. Cohorts 1 through 4 are closed to new enrollment. Dose expansion Cohort 5 and Cohort 6 will evaluate subjects with advanced melanoma. Subjects in Cohort 5 will receive intratumoral injections of KB707 biweekly (q2w), delivered in combination with Opdualag (dosed every q4w per prescribing information). Subjects in Cohort 6 will receive intratumoral injections of KB707 biweekly (q2w), delivered in combination with Keytruda (dosed every q6w per prescribing information). All subjects will be treated until disease progression, death, unacceptable toxicity, symptomatic deterioration, achievement of maximal response, subject choice, Investigator decision to discontinue treatment, or the Sponsor determines to terminate the study.

Detailed Description

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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 and preliminary efficacy of KB707 in adult subjects with advanced and/or refractory solid tumors, including advanced melanoma. 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 as well as combination therapy of KB707 with immune checkpoint inhibitor therapy.

Conditions

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Cancer Melanoma Stage III Melanoma Stage IV Cutaneous Melanoma

Study Design

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Allocation Method

NON_RANDOMIZED

Intervention Model

SEQUENTIAL

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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Cohorts 1 through 4

Dose escalation and expansion cohorts: KB707 monotherapy in subjects with solid tumors.

Group Type EXPERIMENTAL

KB707

Intervention Type BIOLOGICAL

Genetically modified herpes simplex type 1 virus

Cohort 5

Dose expansion cohort: KB707 administered in combination with Opdualag in approximately 100 subjects with advanced melanoma.

Group Type EXPERIMENTAL

KB707

Intervention Type BIOLOGICAL

Genetically modified herpes simplex type 1 virus

Opdualag

Intervention Type DRUG

Dual immunotherapy (PD-1 and LAG-3 immune checkpoint inhibitors)

Cohort 6

Dose expansion cohort: KB707 administered in combination with Keytruda in approximately 100 subjects with advanced melanoma.

Group Type EXPERIMENTAL

KB707

Intervention Type BIOLOGICAL

Genetically modified herpes simplex type 1 virus

KEYTRUDA ®( Pembrolizumab)

Intervention Type DRUG

Immunotherapy (PD-1 immune checkpoint inhibitor)

Interventions

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KB707

Genetically modified herpes simplex type 1 virus

Intervention Type BIOLOGICAL

Opdualag

Dual immunotherapy (PD-1 and LAG-3 immune checkpoint inhibitors)

Intervention Type DRUG

KEYTRUDA ®( Pembrolizumab)

Immunotherapy (PD-1 immune checkpoint inhibitor)

Intervention Type DRUG

Eligibility Criteria

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Inclusion Criteria

* Life expectancy \>12 weeks
* ECOG performance status of 0 or 1
* Have measurable disease per RECIST v1.1 at Screening
* Cohorts 1-4 only: 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.
* Cohorts 5 and 6 only: Histologically confirmed stage III (unresectable) or stage IV melanoma, as per American Joint Committee on Cancer (AJCC) staging system (8th edition; AJCC 2017) and

1. Subject has previously failed one prior anti-PD-1/PD-L1 treatment (as monotherapy or in combination with other checkpoint inhibitors such as anti-LAG-3 or anti-CTLA-4); and
2. If proto-oncogene B-Raf (BRAF) V600 mutation-positive, subject previously failed a BRAF inhibitor or BRAF inhibitor in combination with mitogen-activated extracellular signal-regulated kinase (MEK) inhibitor
* Cohort 5 only: Age 12 years or older at the time of informed consent
* Cohort 6 only: Age 18 years or older at the time of informed consent

Exclusion Criteria

* Prior surgery or radiation therapy must be fully recovered, including all radiation -related toxicities and subject does not require systemic corticosteroids
* 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)
* Cohorts 5 and 6 only:

1. Subject has a known additional malignancy that is progressing or requires active treatment.
2. Subject has uveal/ocular melanoma.
3. The subject has active brain metastases or leptomeningeal metastases
4. Subject has received more than 2 lines of systemic therapy for unresectable or metastatic melanoma
5. Prior anti-LAG-3 and/or anti-PD-1 therapy was intolerable and required discontinuation of treatment
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Krystal Biotech, Inc.

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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David Chien, MD

Role: STUDY_DIRECTOR

Senior Vice President of Clinical Development

Locations

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UCLA Health

Los Angeles, California, United States

Site Status RECRUITING

Mission Dermatology Center

Rancho Santa Margarita, California, United States

Site Status RECRUITING

BRCR Global

Weston, Florida, United States

Site Status RECRUITING

IU Simon Comprehensive Cancer Center

Indianapolis, Indiana, United States

Site Status RECRUITING

Henry Ford Cancer Institute

Detroit, Michigan, United States

Site Status RECRUITING

University of Nebraska Medical Center

Omaha, Nebraska, United States

Site Status RECRUITING

Morristown Medical Center / Atlantic Health System

Morristown, New Jersey, United States

Site Status RECRUITING

Weill Cornell Medicine-New York-Presbyterian Hospital

New York, New York, United States

Site Status RECRUITING

Gabrail Cancer Center Research

Canton, Ohio, United States

Site Status RECRUITING

Cleveland Clinic

Cleveland, Ohio, United States

Site Status RECRUITING

UPMC Hillman Cancer Center

Pittsburgh, Pennsylvania, United States

Site Status RECRUITING

Sarah Cannon Research Institute

Nashville, Tennessee, United States

Site Status RECRUITING

Renovatio Clinical - El Paso

El Paso, Texas, United States

Site Status RECRUITING

MD Anderson Cancer Center

Houston, Texas, United States

Site Status RECRUITING

Renovatio Clinical - The Woodlands

The Woodlands, Texas, United States

Site Status RECRUITING

Countries

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United States

Central Contacts

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David Chien, MD

Role: CONTACT

412-586-5830

Brittani Agostini, RN, CCRC

Role: CONTACT

412-586-5830

Facility Contacts

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Youstina Zaki

Role: primary

310-794-3102

Elizabeth Seja

Role: backup

310-794-6892

Shireen Guide, MD, FAAD

Role: primary

Vaneska Chacin

Role: primary

561-447-0614 ext. 109

Maria Abreu

Role: backup

561-447-0614 ext. 106

Anne Younger, RN

Role: primary

317-274-0951

Yvonne LaFary, RN

Role: backup

(317) 278-5613

Meghan Gauronskas, RN

Role: primary

313-693-5904

Lisa Lange CCTRO Director

Role: backup

313-556-8106

Michaela Savine

Role: primary

402-836-9488

Salome Geene, RN, CRC, BSN

Role: primary

973-971-6373

Anna C Pavlick, DO

Role: primary

646-962-6444

Carrie Smith, RN

Role: primary

330-492-3345

Kim Roby

Role: backup

330-492-3345

Cancer Answer Line

Role: primary

216-444-7923

Kelly Schroder

Role: primary

412-623-3544

Role: primary

844-482-4812

Randa Madero

Role: primary

713-703-2398

Li Li

Role: primary

713-792-3844

Randa Madero

Role: primary

713-703-2398

Other Identifiers

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KB707-01

Identifier Type: -

Identifier Source: org_study_id

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