2020-09-16
2026-06-30
2027-12-31
733
NCT04140526
OncoC4, Inc.
OncoC4, Inc.
INTERVENTIONAL
Safety, PK and Efficacy of ONC-392 in Monotherapy and in Combination of Anti-PD-1 in Advanced Solid Tumors and NSCLC
This is a First-in-Human Phase IA/IB/II open label dose escalation study of intravenous (IV) administration of ONC-392, a humanized anti-CTLA4 IgG1 monoclonal antibody, as single agent and in combination with pembrolizumab in participants with advanced or metastatic solid tumors and non-small cell lung cancers.
Cytotoxic T-lymphocyte-associated protein 4 (CTLA-4), also known as CD152 (cluster of differentiation 152), is a cell surface protein receptor that interacts with B7-1 (CD80) and B7-2 (CD86) to ensure proper function of regulatory T cells and protect host against autoinflammatory diseases. Anti-CTLA-4 monoclonal antibodies (mAbs) have demonstrated strong and broad cancer immunotherapeutic effects (CITE) in a variety of preclinical models and are used clinically both as monotherapy and as part of combination therapy with Nivolumab (anti-PD-1). However, CTLA-4 monotherapy has more immunotherapy-related adverse effects (irAEs) than anti-PD-1/PD-L1 therapy. In addition, the rate of severe irAE (Grades 3 and 4) reached 55% in melanoma patients receiving combination of Ipilimumab and Nivolumab. The strong irAEs further limit the doses tolerated by cancer patients. Nevertheless, combination with anti-PD-1 resulted in significantly improved response rates and patient survival in multiple types of cancer. Furthermore, anti-CTLA-4 antibodies induce long-lasting immunity in cancer patients. Therefore, CTLA-4 remains an important immunotherapy target, but major challenges remain in improving both safety and efficacy of anti-CTLA-4 mAbs. ONC-392 is a highly selective, humanized monoclonal IgG1-kappa isotype antibody against CTLA-4. The parental clone was identified through in vivo screening in humanized CTLA-4 mouse model for high anti-tumor efficacy and low autoimmune toxicity. We have recently demonstrated that ONC-392 is dissociation from CTLA-4 under low pH to allow its escape from lysosomal degradation and recycle to cell surface. We have provided several lines of evidence for the notion that a pH-sensitive antibody ONC-392 is not only safer but also more effective in Treg depletion and tumor rejection than the Ipilimumab, which is pH-insensitive. First, by preserving CTLA-4 on the cell surface, Onc-392 leaves higher ligand density for better ADCC. Second, Onc-392 is more efficient in Treg depletion in tumor microenvironment. Third, Onc-392 is significantly more potent in inducing rejection of large tumors. The study consists of four parts: (1) The Part A study is a dose-finding rapid titration, Phase I trial of ONC-392 as a single agent in patients with advanced or metastatic solid tumors with various histology. The aim of this trial is to define the recommended Phase II dose for ONC-392 monotherapy (RP2D-M). (2) The Part B study is a dose-finding phase with ONC-392 in combination with a standard dose of 200 mg pembrolizumab in patients with advanced or metastatic solid tumors. (3) The Part C consists of different expansion arms. 1. Arm A: Pancreatic Cancer Cohort, ONC-392 monotherapy, will enroll advanced/metastatic pancreatic cancer patients who have progressive disease after first and second lines of systemic treatment. 2. Arm B: TNBC Cohort, ONC-392 monotherapy, will enroll advanced/metastatic TNBC patients who have progressive disease after prior systemic treatments, including checkpoint inhibitor immunotherapy. 3. Arm C: NSCLC Mono Cohort 1, ONC-392 monotherapy, will enroll advanced/metastatic NSCLC patients with EGFR or ALK mutations who have progressive disease after prior systemic treatments, including targeted therapy or checkpoint inhibitors. 4. Arm D: NSCLC IO Naïve Cohort, ONC-392/Pembrolizumab combination therapy, will enroll advanced/metastatic NSCLC cancer patients who are treatment naïve, or anti PD (L)1 immunotherapy naïve and PD-L1-positive (PD L1 TPS ≥ 1%). 5. Arm E: NSCLC IO R/R Cohort, ONC-392/Pembrolizumab combination therapy, will enroll advanced/metastatic NSCLC cancer patients who are R/R to prior anti-PD-(L)1 immunotherapy regardless of PD-L1 status. 6. Arm F: Melanoma IO Naïve Cohort, ONC-392/Pembrolizumab combination therapy, will enroll advanced/metastatic Melanoma patients who are treatment naïve, or checkpoint inhibitor immunotherapy naive. Prior systemic chemotherapy or targeted therapy are allowed. 7. Arm G: Melanoma IO R/R Cohort, ONC-392/Pembrolizumab combination therapy, will enroll advanced/metastatic melanoma patients who are R/R to anti-PD-(L)1 immunotherapy. 8. Arm I: NSCLC Mono Cohort 2, ONC-392 monotherapy, will enroll advanced/metastatic NSCLC patients without EGFR or ALK mutations who have progressive disease after prior systemic treatments, including chemotherapy or checkpoint inhibitors. Patient must have anti-PD-(L)1 treatment, either alone or in combination, as last treatment before enrollment. Prior anti-CTLA-4 treatment is allowed. 9. Arm J: Melanoma Mono Cohort, ONC-392 monotherapy, will enroll advanced/metastatic melanoma patients who are R/R to anti-PD-(L)1 immunotherapy. 10. Arm K: Head and Neck Squamous Cell Carcinoma (HNSCC), ONC-392 monotherapy, will enroll advanced/metastatic HNSCC patients with or without positive HPV who have progressive disease after prior systemic treatments, including chemotherapy or checkpoint inhibitors. Patient must have anti-PD-(L)1 treatment, either alone or in combination, as last treatment before enrollment. 11. Arm L: Ovarian Cancer, ONC-392 monotherapy, will enroll patients with advanced/metastatic ovarian cancer who have progressive disease after prior systemic treatments, including chemotherapy, targeted therapy or checkpoint inhibitors. 12. Arm M: Solid Tumors, ONC-392 monotherapy, will enroll patients with advanced/metastatic solid tumors who are not eligible for Arm A-C or H-L, who have progressive disease after prior systemic treatments, including chemotherapy, targeted therapy or checkpoint inhibitors. 13. Arm N: Renal Cell Carcinoma, ONC-392 monotherapy, will enroll advanced/metastatic RCC patients who are R/R to anti-PD-(L)1 immunotherapy. (4) Part D is a Phase II study in recurrent and/or metastatic adenoid cystic carcinoma with ONC-392 monotherapy. (5) Part E Arm O will test ONC-392 in combination with docetaxel in PD-1 resistant NSCLC.
These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.
Study Registration Dates | Results Reporting Dates | Study Record Updates |
---|---|---|
2019-10-24 | N/A | 2025-05-20 |
2019-10-24 | N/A | 2025-05-23 |
2019-10-28 | N/A | 2025-05 |
This section provides details of the study plan, including how the study is designed and what the study is measuring.
Primary Purpose:
Treatment
Allocation:
Non Randomized
Interventional Model:
Sequential
Masking:
None
Arms and Interventions
Participant Group/Arm | Intervention/Treatment |
---|---|
EXPERIMENTAL: ONC-392 Treatment as single agent The Part A study will test ONC-392 intravenous (IV) infusion up to five predefined dose levels from 0.1 mg/kg to 10 mg/kg ONC-392 as monotherapy every 21 days (Q3W). The Part A study will determine the maximal tolerable dose (MTD) and the recommended Phas | DRUG: ONC-392
|
EXPERIMENTAL: ONC-392 in combination with pembrolizumab The Part B1 study will test ONC-392 intravenous (IV) infusion, Q3W, in combination with fixed dose of pembrolizumab. The dose for pembrolizumab will be fixed at 200mg/cycle dosed every 21 days (Q3W). The Part B1 will start at one level below RP2D-M dose | DRUG: ONC-392
DRUG: Pembrolizumab
|
EXPERIMENTAL: ONC-392 and docetaxel Part E Arm O will test ONC-392 in combination with docetaxel, IV infusion, Q3W, in PD-1 resistant NSCLC patients. | DRUG: ONC-392
DRUG: Docetaxel
|
Primary Outcome Measures | Measure Description | Time Frame |
---|---|---|
Dose limiting toxicity (DLT) in monotherapy | The number of subjects who have dose limiting toxicity during the first cycle of study drug, ONC-392, administration. | 21 days |
Maximal tolerable dose (MTD) in monotherapy | The study drug, ONC-392, dose level that has two out of six subjects who have dose limiting toxicity. | 21 days |
Recommended Phase II Dose (RP2D) | The study drug, ONC-392, dose level that is one level below MTD, or an intermediate dose level that below MTD and pre-specified in protocol. This dose level will be the RP2D for monotherapy. | 21 days |
Rate of treatment related adverse events (TRAE) according to CTCAE v5.0 | The safety profile will be presented as tabulated TRAE. | One year |
Secondary Outcome Measures | Measure Description | Time Frame |
---|---|---|
The serum half life of the study drug, ONC-392, in monotherapy. | To determine the drug concentration in serum samples that are taken in various timepoints during the treatment in order to calculate drug half life. | 12 weeks |
The serum half life of the study drug, ONC-392, in combination therapy with Pembrolizumab. | To determine the drug concentration in serum samples that are taken in various timepoints during the treatment in order to calculate drug half life. | 12 weeks |
Objective Response Rate (ORR) | To determine the objective response rate based on RECIST v1.1. | 1 year |
Progression Free Survival (PFS) | To determine the progression free survival based on RECIST 1.1 and iRECIST. | 1 year |
Overall Survival (OS) | To determine the overall survival. | 1 year |
This section provides the contact details for those conducting the study, and information on where this study is being conducted.
Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person’s general health condition or prior treatments.
Ages Eligible for Study:
ALL
Sexes Eligible for Study:
18 Years
Accepts Healthy Volunteers:
This is where you will find people and organizations involved with this study.
The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.
General Publications
NPCF was founded on May 29, 2009 and is a 501(c)(3) organization. All donations are tax deductible.
The information and services provided by the National Pancreatic Cancer Foundation are for informational purposes only. The information and services are not intended to be substitutes for professional medical advice, diagnosis or treatment. The National Pancreatic Cancer Foundation does not recommend nor endorse any specific physicians, products or treatments even though they may be mentioned on this site.