IFx-Hu2.0 for the Treatment of Patients With Skin Cancer

Phase 1

Completed

Conditions: Basal Cell Carcinoma
Cutaneous Squamous Cell Carcinoma

Registration Number: NCT04925713

Lead Sponsor: TuHURA Biosciences, Inc.

Brief Summary: One hundred patients will receive IFx-Hu2.0 on an outpatient basis at a single time point in a single lesion. These patients will be assessed for any immediate adverse reactions and at Week 4 (Day 28+/-5 days) for any delayed adverse events..

Detailed Description: This is a multi-site, open-label, interventional, prospective, phase 1 trial to assess safety and tolerability of IFx-Hu2.0 in patients with basal cell carcinoma, squamous cell carcinoma, or cutaneous melanoma.

A total of approximately one hundred (100) male and/or female adult patients (greater than or equal to 18 years old), of any ethnicity and race, with at least one cutaneous melanoma, squamous cell carcinoma, or basal cell carcinoma lesion accessible for direct injection, who meet all inclusion and no exclusion criteria, will be eligible for enrollment and treatment with IFx-Hu2.0.

Enrollees will receive IFx-Hu2.0 as a single intralesional injection at a single time point. The target dose will be 100 μg of plasmid DNA per lesion injected at a final dose volume of 200 μL per lesion. The injected lesion will be completely excised at the follow-up visit four weeks later and will be biopsied for confirmation of diagnosis and for the establishment of a pathological response baseline peripheral blood will be collected from these patients prior to treatment administration and at the follow-up visit four weeks later. These samples will be used to perform complete blood counts (CBC) and clinical chemistry tests. A urine sample will be obtained for urinalysis for protein and blood at the same frequency. Blood samples will be drawn for immune response evaluation as well.

Recruitment & Eligibility

Status: COMPLETED

Sex: All

Target Recruitment: 5

Inclusion Criteria

Provision of signed and dated informed consent form
Stated willingness to comply with all study procedures and availability for the duration of the study
Ability to receive intralesional injections
Male or female, aged ≥ 18 years
Histologically confirmed cutaneous squamous cell carcinoma, or basal cell carcinoma with accessible lesions (based on archival tissue or new tissue biopsy for histological confirmation)
Life expectancy of at least 24 weeks at the time of screening
Eastern Cooperative Oncology Group (ECOG) performance status of 0 to 1
Must have measurable disease greater than 3 mm
At least one injectable lesion
Adequate organ function as defined below (Note: these screening laboratory tests must be obtained within two weeks prior to the baseline visit, Day 0):

10.1. Hemoglobin (Hb) >10 g/dL 10.2. Absolute Neutrophil Count (ANC) >1,500 cells/mcL 10.3. Platelet Count (PLT) >75,000/mcL 10.4. Prothrombin Time (PT) or International Normalized Ratio (INR) ≤1.5 times the institutional ULN unless patient is receiving anticoagulant therapy as long as PT or INR is within therapeutic range of the intended use of anticoagulants.

10.5. Activated Partial Thromboplastin Time (aPTT) ≤1.5 times the institutional ULN unless patient is receiving anticoagulant therapy as long as aPTT is within therapeutic range of the intended use of anticoagulants.

10.6. Serum Creatinine (SCr) ≤1.5 times the institutional ULN 10.7. Total Bilirubin ≤1.5 times the institutional ULN 10.8. Aspartate Aminotransferase (AST) ≤3 times the institutional ULN 10.9. Alanine Aminotransferase (ALT) ≤3 times the institutional ULN 10.10. Lactate Dehydrogenase (LDH) ≤2 times the institutional ULN 10.11. Alkaline Phosphatase (ALP) ≤2.5 times the institutional ULN 10.12. Gamma GT (GGT) ≤2.5 times the institutional ULN
Lymphocyte count ≥500,000 cells/mL
For females of reproductive potential: must have a negative urine or serum pregnancy test result within 24 hours prior to receiving IFx-Hu2.0; must use highly effective contraception (e.g.,licensed hormonal or barrier methods) for at least one month prior to screening and agreement to use such a method during study participation and for an additional 26 weeks after the end of study treatment
For males of reproductive potential: use of barrier method or other methods to ensure effective contraception with partner

Exclusion Criteria

Concurrent participation in any other clinical trial
Inability to consent for self
Lesions on scalp with bone erosions must not be selected as injection sites for IFx-Hu2.0
Life expectancy of fewer than 24 weeks at the time of screening
Prior systemic anti-cancer treatment within three weeks from start of treatment (Day 0)
Treatment with any investigational product within the three weeks preceding injection
Concurrent chemotherapy or biological therapy. Concurrent radiotherapy is allowed as long as it is not the same site as the injected lesion.
Current treatment with systemic immunosuppressive corticosteroid (greater than 10 mg of daily prednisone) doses or other immunosuppressants such as those needed for solid organ transplants. Medications needed to treat conditions such as reactive airway disease are not excluded.
Is pregnant, breastfeeding, or expecting to conceive or father children within the projected duration of the trial, starting with the pre-screening or screening visit through 26 weeks after the last dose of trial treatment
Immunizations for encapsulated bacteria were not given for patients who have undergone a splenectomy
Serious underlying medical or psychiatric conditions, active infections requiring the use of antimicrobial drugs, or active bleeding that would make the subject unsuitable or unable to participate in the study
Active Human Immunodeficiency Virus (HIV)/Acquired Immunodeficiency Syndrome (AIDS) or Hepatitis B/C. Patients with treated HIV/AIDS or Hepatitis B/C with no evidence of active infection may be enrolled
History of organ allograft transplantation
Presence of any uncontrolled and significant medical or psychiatric condition which would interfere with trial safety assessments

Study & Design

Study Type: INTERVENTIONAL

Study Design: SINGLE_GROUP

Primary Outcome Measures

Name	Time	Method
Rate of Adverse Events	28 days post injection	Rate of Adverse Events reported per Common Terminology Criteria for Adverse Events (CTCAE) v5.0
Number of Patients Who Completed the Trial [Time Frame: 28 Days Post Injection]	28 days post injection	Number of Patients who completed the trial per protocol without major deviations.

Secondary Outcome Measures