An Open-label, Randomized Phase 2 Clinical Trial to Evaluate the Efficacy and Safety of the Combination Therapy of SLC-3010 and Axitinib Compared to Axitinib Monotherapy as a Second-line Treatment for Locally Advanced or Metastatic Clear Cell Renal Cell Carcinoma

Exclusion Criteria38

• History of malignancy or active malignancy other than the target disease in this study. Exceptions are as follows:
• Malignancies that have been treated with curative intent and have not recurred within the recent 2 years.
• Completely resected basal cell carcinoma or squamous cell carcinoma of the skin.
• Any type of completely resected carcinoma in situ.
• Known brain metastases or epidural conditions. However, patients who have been sufficiently treated with radiotherapy and/or surgery (including radiosurgery) and have been stable for at least 4 weeks prior to the first administration of the study intervention can be enrolled. Note: Patients with an incidental finding of a single lesion \<1 cm may be eligible if deemed not to require treatment at the discretion of the investigator. Eligible patients shall be neurologically asymptomatic and shall not have received corticosteroid therapy for at least 2 weeks prior to the first administration of the study intervention.
• Diagnosis of immunodeficiency or current use of chronic systemic corticosteroids or other immunosuppressive therapy within 7 days prior to the first administration of the study intervention. Topical (\< Grade III), inhaled corticosteroids, or intra-articular corticosteroids, topical creams/lotions, mouthwashes containing corticosteroids, or mineralocorticoids (e.g., fludrocortisone) are allowed.
• Note: Chronic use of ≤ 10 mg/day of prednisone or equivalent may be allowed after discussion and approval by the lead institution.
• Active autoimmune disease that has required systemic treatment (e.g., disease controllers, corticosteroids, or immunosuppressive drugs) within the recent 2 years. Replacement therapy (e.g., thyroxine, insulin, or physiological corticosteroids for adrenal insufficiency or hypopituitarism) is not considered a form of systemic treatment.
• Known infection with Human Immunodeficiency Virus-1 (HIV-1) or HIV-2. Known active hepatitis B virus infection (i.e., HBsAg positive) or hepatitis C virus infection (e.g., \[qualitatively\] detectable HCV RNA). Patients with a negative HCV RNA test after a positive HCV antibody test and no ongoing anti-HCV therapy.
• Active infection requiring systemic therapy.
• Significant cardiovascular diseases, including but not limited to: Stable arrhythmias medically controlled with ongoing medication are allowed.
• QT interval (Interval from the start of the Q wave to the end of the T wave of the ECG) corrected for heart rate using Fridericia's formula (QTcF) \> 480 msec at screening
• Myocardial infarction, acute coronary syndrome, or history of coronary angioplasty/stenting/bypass grafting within the recent 6 months.
• Congestive heart failure (CHF) classified as New York Heart Association (NYHA) Class II-IV, or a history of NYHA Class III or IV CHF.
• Patients with significant respiratory symptoms, known or suspected serious or severe pulmonary conditions at screening, or requiring supplemental oxygen.
• Any form of systemic anticancer therapy (including investigational therapy) within 3 weeks prior to the first administration of the study intervention, or within 5 half-lives of the drug if known, whichever is shorter.
• Participation in an interventional clinical trial involving an investigational drug or device within 3 weeks prior to the first administration of the study intervention in this clinical trial. Patients who are participating in follow-up may be enrolled if more than 3 weeks have passed since the last administration.
• Radiotherapy within 2 weeks prior to the first administration of the study intervention. Patients with ongoing clinically related complications from prior radiotherapy are not eligible.
• Major surgery within 2 weeks prior to administration of the study intervention. Patients shall have sufficiently recovered from any toxicity and/or complications at the discretion of the investigator.
• Live vaccine administration within 4 weeks prior to the first administration of the study intervention. Administration of non-live COVID-19 vaccines within 7 days prior to the DLT assessment is contraindicated, as vaccine-related toxicity may interfere with safety assessments.
• Prior therapy using IL-2 (interleukin-2)-based drugs.
• History of prior axitinib treatment.
• Inability to swallow oral drugs or presence of gastrointestinal disorders that may affect absorption (e.g., gastrectomy, partial bowel obstruction, or malabsorption syndrome).
• Current administration of potent CYP3A4 inducers (e.g., mitotane, phenytoin, rifampin, carbamazepine, or St. John's Wort) that cannot be discontinued during the study.
• Current administration of potent CYP3A4 inhibitors (e.g., boceprevir, cobicistat, itraconazole, ketoconazole, clarithromycin, idelalisib, nefazodone, nelfinavir, and ritonavir co-administered with protease inhibitors) that cannot be discontinued during the study.
• Medically significant bleeding within 3 months prior to randomization. Tumor invasion/infiltration of major blood vessels shall be evaluated, and the potential risk of severe hemorrhage due to tumor shrinkage or necrosis will be considered as part of the exclusion assessment.
• Ongoing concomitant treatment at a therapeutic dose with anticoagulants such as heparin, thrombin, or factor Xa inhibitors, or with antiplatelet agents (e.g., clopidogrel).
• Low-dose aspirin (≤ 100 mg/day), prophylactic low molecular weight heparin (LMWH), and prophylactic factor Xa inhibitors are acceptable.
• Anticoagulation therapy with LMWH at a therapeutic dose is allowed in participants who have no radiologic evidence of uncontrolled brain metastases, have been on a stable dose of LMWH for at least 2 weeks prior to randomization, and have no history of thromboembolic complications or complications from anticoagulation therapy.
• Presence of the following clinically significant diseases:
• Unhealed serious active wounds, ulcers, or fractures
• Requirement for hemodialysis or peritoneal dialysis.
• History of solid organ transplantation.
• Ascites with symptoms requiring medical intervention.
• Known hypersensitivity to any component of the study intervention (SLC-3010 or axitinib), or their analogs.
• Any condition, therapy, laboratory abnormality, or other circumstance (medical history or current evidence) that may expose the patient to risk by participating in the clinical trial, cause confusion in study results, or interfere with the patient's participation throughout the study.
• Psychiatric or substance abuse disorders known to interfere with compliance with study requirements.
• For female patients only: Pregnant or breastfeeding.