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Phase I/IIa, Open-label study to evaluate safety, tolerability and preliminary efficacy of modified Salmonella typhimurium SGN1 in Patients with Advanced Solid Tumor

Phase I/IIa, Open-label study to evaluate safety, tolerability and preliminary efficacy of modified Salmonella typhimurium SGN1 in Patients with Advanced Solid Tumor

Status
Active, not recruiting
Phases
Phase 2
Study type
Interventional
Source
ChiCTR
Registry ID
ChiCTR2400079374
Enrollment
Unknown
Registered
2024-01-02
Start date
2024-01-08
Completion date
Unknown
Last updated
2024-01-08

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

Conditions

Solid Tumors

Interventions

Test Group:The study drug, SGN1, will be administered as an IV infusion through a dedicated line catheter over 2 hours.Depending on the dose level, the dosage will be 0.5×10^8 CFU, 1×10^8 CFU, 2×10^8

Sponsors

West China Hospital of Sichuan University; Harbin Medical University Cancer Hospital
Lead Sponsor

Eligibility

Sex/Gender
All
Age
18 Years to 75 Years

Inclusion criteria

Inclusion criteria: 1.Age 18-75 years inclusive of end value, regardless of gender. 2.Part 1: Patients with advanced stage (unresectable or metastatic) cancer including but not limited to small cell lung cancer, non-small cell lung cancer (adeno- and squamous), Hodgkin's lymphoma or non-Hodgkin’s lymphoma, sarcoma, cervical carcinoma, melanoma, head and neck cancer, breast cancer, ovarian cancer, pseudomyxoma peritoneum (Pseudomyxoma peritonei, PMP) and hepatocellular carcinoma characterized by failure of standard treatment (disease progression or intolerance, such as chemotherapy, targeted therapy, and other immunotherapies) or patients who have no standard treatment or patients who are intolerant to the standard treatment. Part 3: The specific tumor-type expansion study may enroll the following patients: Patients with hepatocellular carcinoma, small cell lung cancer (SCLC), non small cell lung cancer (NSCLC), pancreatic cancer, prostate cancer, bladder cancer, nasopharyngeal carcinoma, sarcoma, melanoma or other tumor type with potential efficacy signal observed in Part 1&2, who have failed to standard therapy or who are intolerant to the standard treatment. There will be 2-4 cohorts of dose expansion in specified tumor types. Note: For all tumor species included, standard treatment will refer to current CSCO/NCCN guidelines. Standard treatment failure refers to patients who have disease progression after CSCO/NCCN guidelines recommended existing standard care, or relapse/metastasis after standard care. Nonstandard treatment refers to patients who have received the treatment recommended by the guidelines and currently have no other effective treatment options. 3.Patients finished anti-tumor therapy including chemotherapy, immunotherapy, biological agents, hormone therapy, radiotherapy (except local radiotherapy for pain relief) = 4 weeks prior to the first dose of study drug. 4.At least 1 measurable lesion according to RECIST 1.1 (for solid tumors). 5.Patients have recovered from any toxic reaction to previous medications (=Grade 1 based on NCI-CTCAE v 5.0, except a. Hair loss; b. Pigmentation; c. The long-term toxicity caused by radiotherapy and cannot be recovered by the investigator's judgment; d. Platinum induced neurotoxicity of grade 2 and below; e. Hemoglobin at 90 ~ 100 g / L (including boundary value)) or stable status assessed by the investigator. 6.Eastern Co-Operative Oncology Group (ECOG) performance status 0 ~ 1 and a life expectancy of at least 3 months. 7.Laboratory tests must meet the following requirements and have not received any blood cell growth factor 14 days before the test (Patients with laboratory values outside of the specified ranges will be permitted to be retested in order to meet the criteria): a.absolute count of neutrophils (ANC) =1.5×109 /L, platelet =75×109 /L; Hemoglobin =90 g/L; b.serum albumin =30g /L; Bilirubin =1.5 × Upper Limit of Normal (ULN), ALT and AST =2.5 × ULN; c.In patients with liver metastasis,c., ALT and AST=5 × ULN; d.Creatinine clearance =50 mL/min (standard Cockcroft -Gault formula) or Cr =1.5 ×ULN: urinary protein= 2+ or urinary protein quantitative <1.0 g/L; e.International standardized ratio of coagulation function (INR) =1.5 × ULN, activated partial thromboplastin time (APTT) =1.5 × ULN (If patient has concomitant medication with anticoagulants, whether the coagulation function is qualified will be determined by Investigator.) 8.If female, be either postmenopausal for at least 1 year with

Exclusion criteria

Exclusion criteria: Patients will be excluded from participation for any of the following criteria: 1.Received systemic or absorbable dosage of steroid hormone (prednisone or equivalent) of > 10 mg/day in the 14 days prior to enrollment; a.Prednisone > 10 mg/day b.Dexamethasone > 1.5 mg/day. 2.Allergic or intolerant to salmonella sensitive antibiotics, or combined with infectious diseases and currently using antibiotics. 3.Present assessable tumors in hollow organs (Stomach, esophagus, intestine, urinary tract etc.). 4.Present with symptomatic central nervous system metastasis or brain abscess at screening. 5.Present with diverticulitis or conditions at screening that might promote the unintentional growth of anaerobic bacteria in non target lesions. 6.Existing cardiac clinical symptoms or diseases that cannot be well controlled, such as: a.NYHA grade 2 or above heart failure; b.Unstable angina pectoris; c.Myocardial infarction occurred within 1 year; d.Patients with supraventricular or ventricular arrhythmias that have clinical significance and need treatment or intervention; e.Uncontrolled hypertension (systolic blood pressure) =160 mmHg and (diastolic blood pressure) =100 mmHg after drug treatment; f.Patients with valvular heart disease or mitral valve prolapse, aortic valve disease or other source of turbulent cardiac blood flow. 7.Those who had received radiotherapy, chemotherapy, hormone therapy, surgery or molecular targeted therapy that ended fewer than 4 weeks before the first dose of study treatment (if nitrosourea or mitomycin chemotherapy, the interval between end of chemotherapy and first dose of study treatment must be no less than 6 weeks). 8.Patients with active or uncontrolled infection or fever, > 38.5?, of unknown cause during screening or before the first administration of the study drug (according to the judgment of the researcher, fever caused by tumor can be included). 9.Positive for the presence of human immunodeficiency virus-1 (HIV-1) or human immunodeficiency virus-2 (HIV-2) (positive antigen/antibody and nucleic acid tests); or follow standard of care for HIV diagnosis. 10.Patients with Anti-TP positive. 11.Patients participating in other clinical studies or participating in other clinical studies within 4 weeks (or 5 half-lives of other study drugs), whichever is longer, prior to enrollment and receiving experimental drug administration. 12.Vaccination within 28 days of the first trial treatment, except for administration of inactivated vaccines and RNA vaccines (e.g., inactivated influenza vaccines and COVID-19 RNA vaccines). 13.Received live or attenuated vaccines within 4 weeks of study drug administration, during treatment, or within 5 months of the last administration. 14.In the judgment of the investigator, there are other factors that may lead to termination: for example, adrenal cortex insufficiency, pituitary insufficiency after treatment, and other serious diseases (including mental diseases) need to be treated together, there are serious abnormalities in laboratory examination, family or social factors, which may affect the safety of the patients or test data and sample collection. 15.In the researcher's judgment, patients who are not suitable for other reasons. 16.Documented salmonella infections within 6 months. 17.Abdominal standing position plain film or abdominal CT indicates the possibility of bowel obstruction within 6 months from screening, or the Investigator believes there is a risk of bowel obstruc

Design outcomes

Primary

MeasureTime frame
ORR;DCR;PFS;

Secondary

MeasureTime frame
Safety;PK;

Countries

China

Contacts

Public ContactLi Zheng

West China Hospital of Sichuan University

18980601950@163.com+86 189 8060 1950

Outcome results

None listed

Source: ChiCTR (via WHO ICTRP) · Data processed: Feb 4, 2026