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A Study of AK104 Plus Axitinib in Advanced/Metastatic Special Pathological Subtypes of Renal Cell Carcinoma

Efficacy and Safety of First-Line Cadonilimab Plus Axitinib in Patients With Advanced Special Pathological Type Renal Cell Carcinoma: A Prospective, Multi-center, Phase Ib/II Trial

Status
Active, not recruiting
Phases
Phase 1Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05808608
Enrollment
37
Registered
2023-04-11
Start date
2023-11-17
Completion date
2026-06-01
Last updated
2026-04-07

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

First-line Treatment, Non Clear Cell Renal Cell Carcinoma, Renal Cell Carcinoma, Sarcomatoid Renal Cell Carcinoma

Brief summary

This is a Phase Ib/II, open-label, single arm trial to evaluate the efficacy and safety of AK104 in combination with axitinib as a first-line treatment for advanced/metastatic special pathological subtypes of renal cell carcinoma (ssRCC). Subjects will receive AK104 plus axitinib until disease progression, development of unacceptable toxic effects, death, a decision by the physician or patient to withdraw from the trial. Primary objective: Phase Ib: To evaluate the safety and tolerability of different doses of cadonilimab combined with axitinib as first-line therapy in subjects with advanced RCC with special pathological types to determine the recommended phase II dose (RP2D). Phase II: To evaluate the objective response rate (ORR) of cadonilumab combined with axitinib as first-line therapy in subjects with advanced RCC with special pathological types according to the RECIST 1.1 criteria.

Interventions

DRUGAK104

Anti-PD-1/CTLA-4 bi-specific antibody drug; Phase 1b: 10mg/kg or 15mg/kg; Phase 2: RP2D intravenously (IV)

DRUGAxitinib

An oral, small molecule, TKI selective for VEGFRs; 5mg bid orally

Sponsors

Hao Zeng
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to 75 Years
Healthy volunteers
No

Inclusion criteria

1. Patients aged ≥18 years and ≤75 years, with no restriction on gender; 2. Diagnosis of RCC with histopathological evidence, with non-clear cell carcinoma confirmed by pathology or genetic testing including pRCC, chRCC, TFE3-rearranged RCC, FH-dRCC, CDC, medullary carcinoma, and unclassified RCC, etc.; 3. Patients must be diagnosed with mRCC or unresectable RCC or TNM stage IV (based on the 2017 TNM staging system). Metastasis is evidenced by imaging or pathology, and for patients including in phase II, there must be at least one measurable tumor lesion (based on RECIST v1.1 criteria); 4. P atients who had not received any prior systemic therapy, including cytokines, targeted agents, ICIs, or other investigational drugs, or those who had received monotherapy with a targeted agent (limited to first-line targeted agents recommended by NCCN 2022 for renal cell carcinoma) for less than 1 month without disease progression and who had completed the washout period; 5. Expected survival of more than 3 months; 6. Have signed an informed consent form and be able to comply with the visit and related procedures specified in the protocol; 7. Agree to collect tumor tissue and blood samples required for the study and apply them to related research; 8. Important organ and bone marrow function meet the following requirements: Absolute neutrophil count (ANC) ≥1.5×109/L, platelets (PLT) ≥100×109/L, hemoglobin (HGB) ≥90g/L; liver function: serum total bilirubin (TBIL) ≤ 1.5 times the upper limit of normal (ULN), alanine aminotransferase (ALT) and/or aspartate aminotransferase (AST) ≤2.5×ULN, serum albumin (ALB) ≥20 g/L; renal function: serum creatinine (Cr) ≤1.5×ULN or creatinine clearance rate (CrCI) ≥50mL/min; 9. ECOG performance score ≤2.

Exclusion criteria

1. Patients with pathological diagnosis only of clear cell renal cell carcinoma (ccRCC); 2. Patients who have previously received anti-PD-1 antibody, anti-PD-L1 antibody, anti-PD-L2 antibody, or anti-CTLA-4 antibody, or any other antibody or drug specifically targeting T cell co-stimulation or checkpoint pathways; 3. Active brain metastases; 4. Patients with a personal history of other malignant tumors different from or histologically different from the primary site of the tumor being evaluated in this study within 3 years, except for patients with papillary thyroid cancer, basal cell carcinoma of the skin, squamous cell carcinoma, or in situ cervical cancer in a well-controlled state; 5. Patients who have undergone major surgery or suffered severe trauma within 4 weeks prior to enrollment; 6. Patients with diseases requiring systemic glucocorticoid (more than 10mg/day prednisone equivalent dose) or other immunosuppressive drug treatment within 14 days before the first administration of the study drug. Patients without active immune diseases are allowed to receive local, ophthalmic, intra-articular, intranasal, inhaled corticosteroids, and adrenal replacement corticosteroids (more than 10mg/day prednisone dose or equivalent) treatment; 7. Known or suspected active autoimmune diseases (congenital or acquired), such as interstitial pneumonia, uveitis, colitis, hepatitis, pituitaryitis, vasculitis, nephritis, thyroiditis, etc. Patients with type 1 diabetes, hypothyroidism requiring only hormone replacement therapy, skin diseases (such as vitiligo, psoriasis, or alopecia) that do not require systemic treatment, or conditions that are not expected to recur in the absence of external triggering factors are allowed to participate in this study. Known allogeneic organ transplantation (excluding corneal transplantation) or allogeneic hematopoietic stem cell transplantation; 8. Allergic to any component of monoclonal antibodies; 9. Patients with other uncontrolled severe diseases, including but not limited to: 1. Severe infections in active stage or with poor clinical control; 2. HIV-infected (HIV antibody positive); 3. Acute or chronic active hepatitis B (HBsAg positive and HBV DNA \> 1\*103/ml) or acute or chronic active hepatitis C (HCV antibody positive and HCV RNA \> 15 IU/ml); 4. Active pulmonary tuberculosis, etc.; 10. III-IV grade congestive heart failure (New York Heart Association classification), persistent symptomatic arrhythmias, uncontrolled atrial fibrillation; multiple echocardiographic assessments of left ventricular ejection fraction (LVEF) below the lower limit of normal values. 11. Uncontrolled arterial hypertension (systolic blood pressure ≥160mmHg or diastolic blood pressure ≥100mmHg); 12. Any arterial thrombosis, embolism, or ischemia occurred within 6 months before enrollment treatment, such as myocardial infarction, unstable angina, cerebrovascular accident, or transient ischemic attack, etc.; 13. Diseases requiring warfarin (coumarin) anticoagulation therapy; 14. Uncontrolled hypercalcemia (greater than 1.5 mmol/L calcium ion or calcium greater than 12 mg/dL or corrected serum calcium greater than ULN), or symptomatic hypercalcemia requiring continued bisphosphonate therapy; 15. Uncontrolled adrenal insufficiency; 16. History of abdominal fistula, gastrointestinal perforation, or intra-abdominal abscess within the past 6 months. 17. Severe, non-healing wounds or ulcers. 18. Gastrointestinal diseases affecting gastrointestinal function (such as malabsorption, ulcerative diseases, uncontrolled nausea, vomiting, diarrhea, or small bowel resection). 19. Other acute or chronic diseases, mental illnesses, or abnormal laboratory test values that may lead to the following outcomes: increased risk associated with study participation or administration of study drugs, or interference with the interpretation of study results, and the patient is considered ineligible for the study based on the researcher's judgment; 20. Pregnant or lactating women.

Design outcomes

Primary

MeasureTime frameDescription
Phase Ib Safety Assessment3 yearsIncidence and severity of adverse events (AEs) according to the Common Terminology Criteria for Adverse Events (CTCAE) version 5.0., dose-limiting toxicity (DLT) during the first treatment cycle, clinically significant abnormal laboratory tests, vital signs, and electrocardiogram (ECG); maximum tolerated dose (MTD), or the maximum administered dose (MAD) when MTD is not reached, as well as the recommended Phase II dose (RP2D).
Phase II Efficacy Assessment: ORR3 yearsORR assessed by the investigator according to RECIST 1.1 criteria. objective response = complete response (CR) + partial response (PR).

Secondary

MeasureTime frameDescription
Phase Ib Efficacy Assessment3 yearsORR, disease control rate (DCR), duration of response (DOR), progression-free survival (PFS), and overall survival (OS) assessed by the investigator according to RECIST 1.1 criteria. DCR: The proportion of participants achieving CR, PR, or stable disease (SD); DOR: Time from the first occurrence of treatment response (CR or PR) to disease progression or death, whichever occurs first; PFS: Time from the first dose of the treatment drug to disease progression or death due to any cause, whichever occurs first; OS: Time from the first dose of treatment drug to death due to any cause.
Phase II Safety Assessment3 yearsIncidence and severity of AEs, clinically significant abnormal laboratory tests, vital signs, and ECG abnormalities.
Phase II Efficacy Assessment3 yearsDCR, DOR, PFS, and OS assessed by the investigator according to the RECIST 1.1 criteria. DCR: The proportion of participants achieving CR, PR, or stable disease (SD); DOR: Time from the first occurrence of treatment response (CR or PR) to disease progression or death, whichever occurs first; PFS: Time from the first dose of the treatment drug to disease progression or death due to any cause, whichever occurs first; OS: Time from the first dose of treatment drug to death due to any cause.
Life quality Questionnaire composite3 yearsEvaluate life quality using FKSI-19 and EQ-5D-5L
Pain score3 yearsEvaluate pain using visual analogue scale (VAS)

Countries

China

Contacts

PRINCIPAL_INVESTIGATORHao Zeng, Professor

West China Hospital

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: May 29, 2026