An Open-Label Study to Assess the Safety, Tolerability, and Efficacy of Active Immunotherapy With Dose Escalation and Cohort Expansion of OBI-833 (Globo H-CRM197) in Advanced/Metastatic Gastric, Lung, Colorectal, or Breast Cancer Subjects
Overview
- Phase
- Phase 1
- Intervention
- OBI-833/OBI-821
- Conditions
- Metastatic Gastric Cancer
- Sponsor
- OBI Pharma, Inc
- Enrollment
- 25
- Locations
- 4
- Primary Endpoint
- Number of Participants With Treatment-emergent Adverse Events
- Status
- Completed
- Last Updated
- 3 years ago
Overview
Brief Summary
The purpose of this clinical study is to assess the safety and tolerability and efficacy of active immunotherapy with dose escalation and cohort expansion of OBI-833 in advanced/metastatic gastric, lung, colorectal, or breast cancer subjects.
Investigators
Eligibility Criteria
Inclusion Criteria
- •Subjects ≥21 years of age
- •Dose escalation phase: Histologically or cytologically confirmed diagnosis of gastric, lung, colorectal or breast cancer on file Cohort expansion phase: Histologically or cytologically confirmed diagnosis of Globo H-positive NSCLC
- •Dose escalation: Subjects with recurrent or metastatic incurable disease that failed to respond to at least one line of anticancer standard therapy and for which standard treatment is no longer effective or tolerable.
- •Cohort expansion phase: Subjects with recurrent or metastatic NSCLC who have achieved stable disease (SD), or partial response (PR) status after at least 1 regimen of anticancer therapy (i.e., chemotherapy, or targeted therapy, or PD-1/PD-L1 antagonists either alone or in combination) , and there are no standard treatments available except permitted Target or PD-1/PD-L1 therapies
- •Measurable disease (i.e., present with at least one measurable lesion per RECIST, version 1.
- •Dose Escalation Phase: No known central nervous system (CNS) metastases or neurological symptoms possibly related to active CNS metastasis in Dose Escalation Phase.
- •Cohort Expansion Phase: Subjects with asymptomatic CNS metastases for at least four weeks before study drug treatment
- •Performance status: ECOG ≤ 1
- •Organ Function Requirements - Subjects must have adequate organ functions as defined below:
- •AST/ALT ≤ 3X ULN (upper limit of normal) AST/ALT ≤ 5X ULN \[with underlying liver metastasis\] Total bilirubin ≤ 2.0 X ULN Serum creatinine ≤ 1.5X ULN ANC ≥ 1500 /µL Platelets \> 100,000/µL
Exclusion Criteria
- •Patients who have not received standard chemotherapy, hormonal or targeted therapy for their underlying advanced/metastatic cancer.
- •Subjects who are pregnant or breast-feeding at entry.
- •Subjects with splenectomy.
- •Subjects with known or clinically manifest, symptomatic CNS metastases in Dose Escalation Phase.
- •Subjects with HIV infection, active hepatitis B infection or active hepatitis C infection.
- •Subjects with any autoimmune disorders requiring iv/oral steroids or immunosuppressive or immunomodulatory therapies.
- •e.g., Type 1 juvenile onset diabetes mellitus, antibody positive for rheumatoid arthritis, Grave's disease, Hashimoto's thyroiditis, lupus, scleroderma, systemic vasculitis, hemolytic anemia, immune mediated thrombocytopenia, etc.
- •Subjects with any known uncontrolled inter-current illness including ongoing or active infections, symptomatic congestive heart failure (NYHA\>2), unstable angina pectoris, cardiac arrhythmia, or psychiatric illness/social situations that would limit compliance with study requirements.
- •Dose escalation phase: Subjects with any of the following MEDICATIONS within 4 weeks prior to IP treatment, except permitted therapies as listed in section 7.1:
- •Chemotherapeutic Agent
Arms & Interventions
Dose escalation
Each subject will be given a total of 10 doses of OBI-833/OBI-821 subcutaneously at weeks 1,2,3,4,6,8,12,16,20,and 24 (Visits 1,2,3,4,5,6,7,8,9 and 10, respectively). Post treatment, subjects will be continually evaluated for safety and immune response every 4 weeks until the end of study, which is 12 weeks after the last dose, i.e., week 36. Subsequently, subjects will be followed for survival every 8 weeks up to 12 months after the end of study.
Intervention: OBI-833/OBI-821
Cohort expansion phase
Each subject will be given OBI-833/OBI-821 at Weeks 1, 2, 3, 4, 6, 8, 12, 16, 20, 24, and every 8 weeks thereafter (Visits 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, and every 8 weeks thereafter) until disease progression. For the subjects discontinued treatment because of disease progression, subjects will be continually evaluated for safety and immune response every 8 weeks until the end of the study, which is 24 weeks after the last dose.
Intervention: OBI-833/OBI-821
Outcomes
Primary Outcomes
Number of Participants With Treatment-emergent Adverse Events
Time Frame: Approximately 13 weeks for dose escalation cohorts and 44 weeks for expansion cohort
Secondary Outcomes
- Maximal Post-baseline Anti-Globo H Antibody Responses(Approximately 13 weeks for dose escalation cohorts and 44 weeks for expansion cohort)