IBI363 for Advanced Solid Cancers
Recruiting in Palo Alto (17 mi)
+9 other locations
Age: 18+
Sex: Any
Travel: May Be Covered
Time Reimbursement: Varies
Trial Phase: Phase 2
Recruiting
Sponsor: Innovent Biologics (Suzhou) Co. Ltd.
Must not be taking: Chemotherapy, Monoclonal antibodies
Disqualifiers: Inadequate organ function, Major surgery, others
No Placebo Group
Prior Safety Data
Approved in 3 Jurisdictions
Trial Summary
What is the purpose of this trial?This is a Phase 2, open-label, multicenter study designed to evaluate the efficacy, safety and tolerability of IBI363 (study drug) in subjects with advanced, refractory solid malignancies.
Do I need to stop my current medications to join the trial?
The trial protocol does not specify if you need to stop taking your current medications. However, you cannot have had certain cancer treatments recently, like chemotherapy within 2 weeks or certain antibodies within 4 weeks before starting the study drug.
What data supports the effectiveness of the drug IBI363 for advanced solid cancers?
Research on similar bispecific antibodies, like those targeting PD-1 and other immune checkpoints, shows they can enhance the body's immune response against tumors. These antibodies have been effective in preclinical models by activating immune cells to attack cancer cells, suggesting potential for IBI363 in treating solid cancers.
12345What safety data exists for IBI363 or similar bispecific antibodies in humans?
There is no specific safety data available for IBI363, but similar bispecific antibodies like MEDI5752 have been reported to be well tolerated in early trials, suggesting a potential for safety in humans.
26789What makes the drug IBI363 unique for treating advanced solid cancers?
IBI363 is unique because it is a bispecific antibody fusion protein that targets both PD-1, a protein that helps cancer cells evade the immune system, and IL-2α, which can enhance immune cell activity, potentially offering a more targeted and effective approach to treating advanced solid cancers compared to traditional therapies.
12101112Eligibility Criteria
This trial is for individuals with advanced solid tumors that haven't responded to other treatments. Specific details on who can join are not provided, but typically participants need to meet certain health standards and have a type of cancer the study targets.Inclusion Criteria
Anticipated life expectancy of ≥ 3 months
I am 18 years old or older.
Subjects have the ability to understand and give written informed consent for participation in this trial, including all evaluations and procedures as specified by this protocol
+1 more
Exclusion Criteria
I have had major surgery recently or will have one during the study.
I have had cancer treatment within the required time frame.
My bone marrow and organs are not functioning properly.
+2 more
Trial Timeline
Screening
Participants are screened for eligibility to participate in the trial
2-4 weeks
Treatment
Participants receive IBI363 as an intravenous infusion every 2 or 3 weeks
12 weeks
Follow-up
Participants are monitored for safety and effectiveness after treatment
4 weeks
Participant Groups
The trial is testing IBI363, which is being evaluated for its effectiveness and safety in treating advanced solid malignancies. It's an open-label, multicenter study, meaning both the researchers and participants know what treatment is being given.
1Treatment groups
Experimental Treatment
Group I: IBI363Experimental Treatment1 Intervention
IBI363 will be administered as an intravenous (IV) infusion every 2 weeks or every 3 weeks.
IBI363 is already approved in United States, China, Australia for the following indications:
🇺🇸 Approved in United States as IBI363 for:
- Advanced melanoma (Fast Track Designation)
🇨🇳 Approved in China as IBI363 for:
- Under clinical investigation for advanced solid malignancies
🇦🇺 Approved in Australia as IBI363 for:
- Under clinical investigation for advanced solid malignancies
Find a Clinic Near You
Research Locations NearbySelect from list below to view details:
Oncology Consultants P.A.Houston, TX
University of California, San Francisco (UCSF)San Francisco, CA
Ocala Oncology CenterOcala, FL
BRCR Medical CenterPlantation, FL
More Trial Locations
Loading ...
Who Is Running the Clinical Trial?
Innovent Biologics (Suzhou) Co. Ltd.Lead Sponsor
References
A novel bispecific c-MET/PD-1 antibody with therapeutic potential in solid cancer. [2018]The bispecific antibody is a novel antibody, which can target two different antigens and mediate specific killing effects by selectively redirecting effector cells to the target cells. Here, we designed and synthesized a bispecific antibody (BsAb) that can bind cellular-mesenchymal to epithelial transition factor (c-MET, overexpressed in several human solid tumor), and programmed death-1 (PD-1, involved in cancer cell immune evasion) with high affinity and specificity. We found that BsAb can induce the degradation of c-MET protein in cancer cells, including MKN45, a gastric cancer cell line, and A549, a lung cancer cell line. BsAb inhibited hepatocyte growth factor (HGF)-mediated proliferation, migration, and antiapoptosis, and downregulated HGF-stimulated phosphorylation of c-MET, protein kinase B (AKT), and extracellular signal-regulated kinase (ERK1/2). BsAb can also rescue T cell activation. Furthermore, xenograft analysis revealed that BsAb markedly inhibits the growth of subcutaneously implanted tumors and chronic inflammation. On the basis of these results, we have identified a potential bispecific drug, which can effectively target c-MET and PD-1 for the treatment of human solid cancers.
PD-L1/LAG-3 bispecific antibody enhances tumor-specific immunity. [2021]Anti-programmed cell death-1 (PD-1)/PD-ligand-1 (PD-L1) treatments are effective in a fraction of patients with advanced malignancies. However, the majority of patients do not respond to it. Resistance to cancer immunotherapy can be mediated by additional immune checkpoints. We hypothesized that co-targeting of PD-L1 and lymphocyte-activation gene 3 (LAG-3) could provide an alternative therapeutic approach. Here, we developed IBI323, a dual blockade bispecific antibody targeting PD-L1 and LAG-3. We assessed the binding affinity, blocking activity, cell bridging effect, and immunomodulation function of IBI323 using in vitro assays. We also evaluated, in two humanized mouse models, anti-tumor effects and antitumor T cell immunity induced by IBI323. IBI323 bound to PD-L1 and LAG-3 with similar potency as its parental antibodies and blocked the interaction of PD-1/PD-L1, CD80/PD-L1, and LAG-3/MHC-II. Moreover, IBI323 mediated the bridging of PD-L1+ cells and LAG-3+ cells and demonstrated superior immune stimulatory activity compared to each parent antibody in mixed leukocyte reaction. In PD-L1/LAG-3 double knock-in mice bearing human PD-L1 knock-in MC38 tumors, IBI323 showed stronger anti-tumor activity compared to each parental antibody. The better antitumor response correlated with increased tumor-specific CD8+ and CD4+ T cells. IBI323 also induced stronger anti-tumor effect against established A375 tumors compared with combination in mice reconstituted with human immune cells. Collectively, these data demonstrated that IBI323 preserved the blockade activities of parental antibodies while processing a novel cell bridging function. Based on the encouraging preclinical results, IBI323 has significant value in further clinical development.
Immunomodulation of T- and NK-cell Responses by a Bispecific Antibody Targeting CD28 Homolog and PD-L1. [2022]Checkpoint blockade therapies targeting PD-1/PD-L1 and CTLA-4 are clinically successful but also evoke adverse events due to systemic T-cell activation. We engineered a bispecific, mAb targeting CD28 homolog (CD28H), a newly identified B7 family receptor that is constitutively expressed on T and natural killer (NK) cells, with a PD-L1 antibody to potentiate tumor-specific immune responses. The bispecific antibody led to T-cell costimulation, induced NK-cell cytotoxicity of PD-L1-expressing tumor cells, and activated tissue-resident memory CD8+ T cells. Mechanistically, the CD28H agonistic arm of the bispecific antibody reduced PD-L1/PD-1-induced SHP2 phosphorylation while simultaneously augmenting T-cell receptor signaling by activating the MAPK and AKT pathways. This bispecific approach could be used to target multiple immune cells, including CD8+ T cells, tissue-resident memory T cells, and NK cells, in a tumor-specific manner that may lead to induction of durable, therapeutic antitumor responses.
A Phase 1 First-in-Human Study of FS118, a Tetravalent Bispecific Antibody Targeting LAG-3 and PD-L1 in Patients with Advanced Cancer and PD-L1 Resistance. [2023]This phase 1 study (NCT03440437) evaluated the safety, tolerability, pharmacokinetics (PK), and activity of FS118, a bispecific antibody-targeting LAG-3 and PD-L1, in patients with advanced cancer resistant to anti-PD-(L)1 therapy.
Tumor-targeted CD28 bispecific antibodies enhance the antitumor efficacy of PD-1 immunotherapy. [2021]Monoclonal antibodies that block the programmed cell death 1 (PD-1) checkpoint have revolutionized cancer immunotherapy. However, many major tumor types remain unresponsive to anti-PD-1 therapy, and even among responsive tumor types, most of the patients do not develop durable antitumor immunity. It has been shown that bispecific antibodies activate T cells by cross-linking the TCR/CD3 complex with a tumor-specific antigen (TSA). The class of TSAxCD3 bispecific antibodies have generated exciting results in early clinical trials. We have recently described another class of "costimulatory bispecifics" that cross-link a TSA to CD28 (TSAxCD28) and cooperate with TSAxCD3 bispecifics. Here, we demonstrate that these TSAxCD28 bispecifics (one specific for prostate cancer and the other for epithelial tumors) can also synergize with the broader anti-PD-1 approach and endow responsiveness-as well as long-term immune memory-against tumors that otherwise do not respond to anti-PD-1 alone. Unlike CD28 superagonists, which broadly activate T cells and induce cytokine storm, TSAxCD28 bispecifics display little or no toxicity when used alone or in combination with a PD-1 blocker in genetically humanized immunocompetent mouse models or in primates and thus may provide a well-tolerated and "off the shelf" combination approach with PD-1 immunotherapy that can markedly enhance antitumor efficacy.
MEDI5752 Suppresses Two Immune Checkpoints. [2022]Preliminary data from a phase I trial of MEDI5752, a bispecific antibody targeting both PD-1 and CTLA4, indicate the drug is well tolerated and active, with durable responses seen across diverse tumor types.
Taking up Cancer Immunotherapy Challenges: Bispecific Antibodies, the Path Forward? [2020]As evidenced by the recent approvals of Removab (EU, Trion Pharma) in 2009 and of Blincyto (US, Amgen) in 2014, the high potential of bispecific antibodies in the field of immuno-oncology is eliciting a renewed interest from pharmaceutical companies. Supported by rapid advances in antibody engineering and the development of several technological platforms such as Triomab or bispecific T cell engagers (BiTEs), the "bispecifics" market has increased significantly over the past decade and may occupy a pivotal space in the future. Over 30 bispecific molecules are currently in different stages of clinical trials and more than 70 in preclinical phase. This review focuses on the clinical potential of bispecific antibodies as immune effector cell engagers in the onco-immunotherapy field. We summarize current strategies targeting various immune cells and their clinical interests. Furthermore, perspectives of bispecific antibodies in future clinical developments are addressed.
Discovery of a novel anti PD-L1 X TIGIT bispecific antibody for the treatment of solid tumors. [2022]The emergence of immune checkpoint inhibitors (ICIs), mainly based on PD-1/PD-L1 blockade has revolutionized the therapeutic landscape of cancer. Despite the huge clinical success ICIs have achieved, about 70% of patients still showed de novo and adaptive resistance. Exploring novel and complementary immune checkpoint molecules in addition to PD-1/PD-L1 is in great urgency. T cell immunoglobulin and ITIM domain (TIGIT) is a co-inhibitory molecule containing an immunoreceptor tyrosine-based inhibition motif (ITIM) within its cytoplasmic tail, and is highly expressed on regulatory T cells and activated CD4+ T, CD8+ T, and NK cells. We generated a novel single chain Fab heterodimeric bispecific IgG antibody format targeting PD-L1 and TIGIT with one binding site for each target antigen. The bispecifc antibody BiAb-1 is based on "knob-into-hole" technology for heavy chain heterodimerization with a glycine serine linker connecting the 3' end of Cκand the 5' end of VH to prevent wrong pairing of light chains. BiAb-1 was produced with high expression yields and show simultaneous binding to PD-L1 and TIGIT with high affinity. Importantly, cytokine production was enhanced by BiAb-1 from staphylococcal enterotoxin B (SEB) stimulated PBMCs. BiAb-1 also demonstrated potent anti-tumor efficacy in multiple tumor models and superior activity to PD-1/PD-L1 blockade molecules. In conclusion, we have applied rational antibody engineering technology to develop a monovalent heterodimeric bispecifc antibody, which combines the blockade of both PD-1/PD-L1 and TIGIT/CD155 pathways simultaneously and results in superior anti-tumor efficacy in multiple tumor models over existing anti PD-1/PD-L1 molecules.
Recombinant bispecific antibodies for cellular cancer immunotherapy. [2007]Bispecific antibodies recognizing two different antigens present on different cells have been developed for cellular cancer therapy in which cytotoxic effector cells are recruited to tumor cells. Initial studies with bispecific antibodies have not reached satisfactory clinical endpoints, mainly due to low efficacy, Fc-mediated side effects and immunogenicity. This has resulted in a declining interest in bispecific antibodies for cancer therapy. However, growing knowledge in effector cell biology and the implementation of antibody engineering technologies has led to a revival and the development of novel or improved strategies. Various recombinant bispecific antibodies have demonstrated efficacy in vitro andin vivo, with the first recombinant antibody molecule currently in clinical trials for the treatment of B-cell malignancies.
Anti-PD-1/Her2 Bispecific Antibody IBI315 Enhances the Treatment Effect of Her2-Positive Gastric Cancer through Gasdermin B-Cleavage Induced Pyroptosis. [2023]The majority of patients with human epidermal growth factor receptor 2 (Her2)-positive gastric cancer develop refractory to Her2-targeted therapy, where upregulation of immune checkpoints plays an essential role. Herein, a recombinant fully human IgG1 bispecific antibody IBI315 targeting both PD-1 and Her2 is developed and its antitumor efficacy as well as the underlying mechanism is investigated. IBI315 crosslinks the physical interaction between Her2-positive tumor cells and PD-1-positive T cells, resulting in significantly enhanced antitumor effects compared to each parent antibody or their combination, both in vitro and in vivo mouse tumor models reconstituted with human immune cells using patient-derived xenografts and organoids. Moreover, IBI315 treatment also induces the recruitment and activation of immune cells in tumors. Mechanistically, IBI315 triggers gasdermin B (GSDMB)-mediated pyroptosis in tumor cells, leading to the activation and recruiments of T cells. The activated T cells secret IFNγ, enhancing GSDMB expression and establishing a positive feedback loop of T cell activation and tumor cell killing. Notably, GSDMB is found to be elevated in Her2-positive gastric cancer cells, providing a rationale for IBI315's efficacy. IBI315 is supported here as a promising bispecific antibody-based immunotherapy approach for Her2-positive gastric cancer in preclinical studies, broadening the therapeutic landscape of this patient population.
An anti-PD-1-GITR-L bispecific agonist induces GITR clustering-mediated T cell activation for cancer immunotherapy. [2022]Costimulatory receptors such as glucocorticoid-induced tumor necrosis factor receptor-related protein (GITR) play key roles in regulating the effector functions of T cells. In human clinical trials, however, GITR agonist antibodies have shown limited therapeutic effect, which may be due to suboptimal receptor clustering-mediated signaling. To overcome this potential limitation, a rational protein engineering approach is needed to optimize GITR agonist-based immunotherapies. Here we show a bispecific molecule consisting of an anti-PD-1 antibody fused with a multimeric GITR ligand (GITR-L) that induces PD-1-dependent and FcγR-independent GITR clustering, resulting in enhanced activation, proliferation and memory differentiation of primed antigen-specific GITR+PD-1+ T cells. The anti-PD-1-GITR-L bispecific is a PD-1-directed GITR-L construct that demonstrated dose-dependent, immunologically driven tumor growth inhibition in syngeneic, genetically engineered and xenograft humanized mouse tumor models, with a dose-dependent correlation between target saturation and Ki67 and TIGIT upregulation on memory T cells. Anti-PD-1-GITR-L thus represents a bispecific approach to directing GITR agonism for cancer immunotherapy.
Preclinical studies combining bispecific antibodies with cytokine-stimulated effector cells for immunotherapy of renal cell carcinoma. [2018]Bispecific antibodies--consisting of a F(ab')-fragment derived from a monoclonal antibody against a tumor epitope as well as of another antibody against a cytotoxic trigger molecule on immune effector cells--can improve the effectiveness of antibody-based tumor therapy.