The purpose of this study is to compare the effectiveness, safety, pharmacokinetics (PK) of SYHX2008 vs Octreotide Microspheres (Sandostatin LAR@) in patients with advanced, well-differentiated GEP-NET.
Male or female patient ≥18 years old;
Histologically confirmed, advanced GEP-NET;
At least 1 measurable, somatostatin receptor-positive lesion according to RECIST 1.1;
Previous treatment with ≤2 systemic antitumor drugs;
Uncontrolled or severe diarrhea with significant dehydration;
Other malignancies diagnosed within the previous 5 years, except basal cell carcinoma or cervical carcinoma in situ after radical resection;
Anti-tumor therapy received within 4 weeks prior to the initiation of the investigational treatment, for example mammalian target of rapamycin (mTOR) inhibitors or multi-target tyrosine kinase inhibitors (TKI); or short-acting octreotide acetate was received subcutaneously or intravenously within 1 weeks prior to the initiation of the investigational treatment;
Interferon was received within 4 weeks prior to the initiation of the investigational treatment; or chemotherapy was received within 4 weeks prior to the initiation of the investigational treatment; or transarterial chemoembolization was received within 12 months prior to screening; or previously received peptide receptor radionuclide therapy (PRRT) at any time; or received radiation therapy, anti-tumor traditional Chinese medicine treatment, hepatic artery intervention embolization, liver metastasis cryoablation or radiofrequency ablation, and other systemic anti-tumor drug treatments within 4 weeks prior to the initiation of the investigational treatment; or had participated in other clinical trials within 30 days prior to screening