Efficacy and Safety of AK104 Combined With Chemotherapy for Neoadjuvant Treatment of Advanced Ovarian Cancer

This is a randomized, controlled, multicenter clinical study to evaluate AK104 in FIGO 2018 stage III-IV ovarian cancer subjects who were assessed to be at high perioperative risk and/or unable to achieve R0 resection prior to initial treatment. The efficacy and safety of neoadjuvant therapy with intravenous infusion combined with chemotherapy compared with chemotherapy alone.

Inclusion Criteria: 1. Agree to sign the informed consent form. 2. 18 years ≤ age \ 12 weeks. 8. Good organ function. 9. Participants of reproductive age must agree to use effective contraception during the trial; Serum or urine pregnancy tests for women of childbearing age must be negative. 10. Non-lactating patients. Exclusion Criteria: 1. Ovarian cancer, fallopian tube cancer, primary peritoneal cancer (such as germ cell tumor) of non-epithelial origin; Ovarian tumors with low malignant potential (e.g., borderline tumors). 2. Patients with other malignant tumors in the past (within 5 years) or at the same time, with the exception of cured local tumors (such as basal cell skin cancer, squamous cell skin cancer, superficial bladder cancer, cervical carcinoma in situ, breast carcinoma in situ, etc.) and breast cancer with no recurrence \>3 years after radical surgery. 3. Subjects with active viral hepatitis B, inactive or asymptomatic hepatitis B virus (HBV) carriers (HBV surface antigen \[HBsAg\] positive) with HBV DNA \> 1000 IU/mL, and subjects with active viral hepatitis C. Note: Inactive or asymptomatic carriers, treated and stable hepatitis B subjects with HBV DNA ≤ 1000 IU/mL were admitted. Subjects with cured viral hepatitis C, HCVAb positive and HCV RNA negative were admitted. 4. A history of testing positive for known human immunodeficiency virus or known acquired immunodeficiency syndrome. 5. Have an active or possibly recurring autoimmune disease; The following are excluded: vitiligo, alopecia, psoriasis or eczema that do not require systematic treatment; Hypothyroidism due to autoimmune thyroiditis requires only stable dose hormone replacement therapy; Only a steady dose of insulin replacement is required for type 1 diabetes. 6. A history of severe allergic reactions to any monoclonal antibody and/or investigational drug ingredient. 7. Subjects with known active TB and suspected active TB should undergo clinical examination to rule out known active syphilis infection. 8. There is a history or current presence of noninfectious pneumonia/interstitial lung disease requiring systemic glucocorticoid therapy. 9. Severe infections occurring within 4 weeks prior to first dosing, including but not limited to active infections with comorbidification requiring hospitalization, sepsis, or severe pneumonia that received systemic anti-infective therapy within 2 weeks prior to first dosing (excluding antiviral therapy for hepatitis B or C). 10. Serious medical conditions or concomitant non-oncological conditions, such as neurological disorders, psychosis, infectious diseases, or laboratory abnormalities, may increase the risk of participating in the study or taking the investigational drug, which the investigator believes would make the patient unfit for entry into the study. 11. Patients with clinically significant cardiovascular disease. 12. Patients who were judged by the investigator to be unsuitable for this study.