A Study of Syngenon (BSG-001) for Inhalation in Subjects With Malignant Pleural Effusion and/or Malignant Ascites

Inclusion Criteria: 1. Histologically or cytologically documented malignant pleural effusion and/or malignant ascites OR morphological diagnosis of malignant pleural effusion and/or malignant ascites by CT or ultrasound 2. Histologically confirmed cancer 3. Malignant pleural effusion and/or malignant ascites clinically judged as not responsive to conventional systemic therapy(ies) for primary malignancy 4. Adequate liver and renal function as defined below: 5. Eastern Cooperative Oncology Group (ECOG) performance status ≤ 2 6. Life expectancy of \> 12 weeks 7. Willing and able to provide written, signed informed consent after the nature of the study has been explained, and prior to any research-related procedures 8. Females of childbearing potential must have a negative serum pregnancy test at screening and be willing to have additional serum pregnancy tests during the study. 9. Willing and able to comply with all study procedures Exclusion Criteria: 1. Presence of \> grade 3 active infection or gastric bleeding at the time of screening 2. Change in chemotherapy regimen within 28 days before Day 1 of study drug administration 3. Concurrent use of any investigational product (IP) or investigational medicine within 28 days before Day 1 of study drug administration 4. Symptomatic interstitial lung disease or inflammatory pneumonitis 5. Concurrent disease or condition which, in the opinion of the Investigator, would pose a risk to patient safety or interfere with study participation or interpretation of individual patient results 6. Breastfeeding at screening or planning to become pregnant (self or partner) at any time during study participation