To evaluate the efficacy and safety of B013 in patients with platinum-resistant recurrent ovarian cancer.

Inclusion Criteria:

1. Subjects who voluntarily participate in this study and sign informed consent form;
2. Ovarian cancer, fallopian tube cancer or primary peritoneal cancer confirmed by histopathological examination and meeting the criteria for platinum resistance recurrence;
3. ECOG performance status of 0 or 1；
4. Expected survival > 12 weeks;
5. The subject has at least one measurable lesion;
6. Normal function of major organs;
7. The fertile subjects agree to use reliable contraception from signing the informed consent to at least 6 months after the last dose.

Exclusion Criteria:

1. Subjects who have received prescribed treatment previously;
2. Subjects who are still using anti-tumor traditional Chinese patent medicines at the time of signing informed consent;
3. Subjects with known central nervous system metastasis and multiple bone metastasis;
4. Subjects who had clinical symptoms of pleural effusion, pericardial effusion or ascites before randomization and needed puncture drainage, or had received puncture drainage within the previous 2 weeks;
5. Have a history of other malignant tumors within 5 years before signing the informed consent;
6. Subjects with prescribed cardiovascular diseases;
7. Subjects with infections requiring intravenous antibiotic infusion within 2 weeks prior to randomization;
8. Had severe lung disease before randomization;
9. Before randomization, the peripheral nerve toxicity of previous anti-tumor treatment was > grade 2, and other reversible toxicity was > grade 1;
10. Subjects who had undergone surgery within 28 days prior to randomization and did not recover from adverse effects of surgery;
11. Subjects who participated in clinical trials within 30 days prior to randomization and received other unmarketed investigational drugs;
12. Subjects who are known to be allergic to any component of B013 or paclitaxel.
13. Subjects with a known history of substance abuse, alcohol or drug use; Subjects with a known history of neurological or psychiatric disorders;
14. Female subjects who are pregnant or breastfeeding;
15. Other situations determined by the researchers and/or sponsors as unsuitable for participation in this trial.