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NCT06228326RecruitingPhase 1/2

A Study Assessing KB707 for the Treatment of Advanced Solid Tumor Malignancies Affecting the Lungs

KB707-02: A Phase 1/2 Study of Inhaled KB707 in Patients With Advanced Solid Tumor Malignancies Affecting the Lungs

Source: ClinicalTrials.gov · Last updated 24 Oct 2025 · Not updated for over 12 months - ask the site whether it is still open

Brief summary (registry, in English)

The Sponsor is developing KB707, a replication-defective, non-integrating herpes simplex virus type 1 (HSV-1)-derived vector designed to stimulate an anti-tumor immune response through the production of cytokines within the local tumor microenvironment in the lungs. KB707 is administered via nebulization, delivering the therapy directly through the airways to the lungs of subjects with advanced solid tumor malignancies. This is a Phase 1/2, open-label, multicenter, dose escalation and expansion study designed to evaluate the safety, tolerability, preliminary efficacy, and immunologic effect of KB707. Monotherapy KB707 dose escalation and expansion cohorts enrolled adults with advanced solid tumor malignancies affecting the lungs who had progressed on standard of care therapy, cannot tolerate standard of care therapy, or refused standard of care therapy. The dose escalation phase (Cohorts 1 and 2) evaluated KB707 monotherapy using a standard 3+3 design, followed by a dose expansion phase (Cohort 4) to further evaluate the selected dose. Subjects received inhaled KB707 weekly for three weeks, then every three weeks. The dose escalation portion of the study is now complete, and the selected dose is being evaluated in the expansion phase. Combination regimens with a selected (fixed) dose of KB707 are being evaluated in subjects with advanced or metastatic non-small cell lung cancer (NSCLC). Subjects in Cohorts 5 and 6 are receiving inhaled KB707 once every 2 weeks (q2w), delivered in combination with Keytruda once every 6 weeks. Subjects in Cohort 7 are receiving inhaled KB707 in combination with docetaxel once every 3 weeks. All subjects will be treated until tumor 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.

Status (registry)
Recruiting
Phase (registry)
Phase 1/2
Study type
Interventional
Enrollment
250 (estimated)
First submitted
18 Jan 2024
Start date
17 Apr 2024
Primary completion date
Feb 2027
Lead sponsor
Krystal Biotech, Inc.
Diseases
Lung cancer
NCT number
NCT06228326

What you commit to

  • Study type: Interventional · Phase 1/2
  • Planned participants: 250
  • From 17 Apr 2024 to the primary completion date, Feb 2027
  • 14 sites in 1 country
  • Visits and tests: ask the trial team, the registry does not list them

Built from the registry fields of ClinicalTrials.gov. It describes the study, not your situation.

Who cannot take part

Copied verbatim from ClinicalTrials.gov and grouped by topic. Only the trial team decides who can take part.

Prior treatment

  • Not fully recovered from prior surgery or radiotherapy, including all radiation-related toxicities
  • Cohorts 5, 6, and 7 only:
    • Subject has a known additional malignancy that is progressing or requires active treatment
    • Subject has active brain metastases or leptomeningeal metastases
    • Prior anti-PD-1/PD-L1 therapy was intolerable and required discontinuation of treatment
    • Subject has active, known, or suspected autoimmune disease requiring systemic treatment
    • Subject has known acute or chronic hepatitis
    • Subject has active pneumonitis or history of ICI-induced pneumonitis that required steroids

Other illness

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

Other

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

Who the study is looking for

  • Age 18 years or older at the time of informed consent
  • Life expectancy \>12 weeks
  • Eastern Cooperative Oncology Group (ECOG) performance status of 0 or 1
  • Have at least one measurable lung lesion per RECIST v1.1 at Screening
  • Cohorts 1 through 4 only: Histologically confirmed diagnosis of advanced solid tumor malignancy affecting the lungs and the individual has progressed on standard of care therapy, cannot tolerate standard of care therapy, refused standard of care therapy, or has no standard of care therapy.
  • Cohorts 5, 6, and 7 only: (1) Histologically or cytologically confirmed diagnosis of stage 3 or 4 NSCLC, as per American Joint Committee on Cancer (AJCC) staging system (8th edition) and (2) Subject must meet the following criteria of prior lines of therapy:
    • Subject has previously received no more than one line of prior immune checkpoint inhibitor (ICI) with or without platinum-based chemotherapy, or no more than two prior lines of therapy when given the ICI and platinum-based chemotherapy sequentially as two separate lines.
    • Subjects with an actionable mutation (e.g., EGFR, KRAS, ALK, or ROS1 genomic alteration), are permitted to have received one additional line of approved targeted therapy.

Age in the registry: 18 years to - · Sex: All · Does not accept healthy volunteers

Full criteria on ClinicalTrials.gov

Sites (14)

Sites in registry order. Pick your city on the disease page to sort them by distance.

SiteCityCountrySite status
Precision NextGen Oncology
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Beverly HillsUnited StatesRecruiting
Gabrail Cancer Center Research
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CantonUnited StatesRecruiting
Cleveland Clinic
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ClevelandUnited StatesRecruiting
Henry Ford Health
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DetroitUnited StatesRecruiting
XCancer Research Network/Dothan Hematology & Oncology
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DothanUnited StatesRecruiting
Renovatio Clinical
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El PasoUnited StatesTerminated
IU Simon Comprehensive Cancer Center
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IndianapolisUnited StatesTerminated
Sarah Cannon Research Institute
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NasvilleUnited StatesRecruiting
Ochsner/MD Anderson Cancer Center
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New OrleansUnited StatesRecruiting
UPMC Hillman Cancer Center
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PittsburghUnited StatesTerminated
Emad Ibrahim, MD, Inc.
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RedlandsUnited StatesRecruiting
HonorHealth Research Institute
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ScottsdaleUnited StatesRecruiting
Renovatio Clinical
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The WoodlandsUnited StatesTerminated
BRCR Global
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WestonUnited StatesRecruiting

This page is information, not medical advice. Discuss any trial with your doctor.