Discovery of BBO-11818, a Potent and Selective Noncovalent Inhibitor of (ON) and (OFF) KRAS with Activity against Multiple Oncogenic Mutants.
Carlos Stahlhut, Anna E Maciag, Kyle A Sullivan...
https://pubmed.ncbi.nlm.nih.gov/41790032/Actively Recruiting
Led by TheRas, Inc., d/b/a BBOT (BridgeBio Oncology Therapeutics) · Updated on 2026-06-02
665
Participants Needed
17
Research Sites
108 weeks
Total Duration
Researchers are evaluating the safety and early antitumor effects of BBO-11818, a pan-KRAS inhibitor, in adults with locally advanced unresectable or metastatic cancers that have KRAS mutations. This Phase 1, open-label, multi-center trial focuses on solid tumors including non-small cell lung cancer, pancreatic ductal adenocarcinoma, colorectal cancer, and other advanced cancers with specific KRAS mutations. The study aims to understand how BBO-11818 works alone and combined with other cancer treatments. Participants receive BBO-11818 orally, either by itself or with various intravenous treatments such as pembrolizumab, platinum chemotherapy cisplatin or carboplatin, pemetrexed, cetuximab, mFOLFOX6, BBO-10203, mFOLFIRINOX, gemcitabine, and nab-paclitaxel. The trial includes a dose escalation phase to find the recommended dose and a dose expansion phase to further evaluate treatment combinations. Multiple treatment cohorts receive different combinations of these agents. During the study, participants will be monitored for treatment-related side effects, drug levels in the blood, and tumor response using RECIST criteria over approximately five years. Researchers will track safety events, pharmacokinetics, tumor shrinkage, duration of response, progression-free survival, and overall survival. Regular assessments include physical exams, laboratory tests, imaging scans, and evaluation of patient health and life expectancy. The study is designed to gather detailed information about BBO-11818s effects and tolerability in this patient group.
CONDITIONS
BBO-11818 in Adult Subjects With KRAS Mutant Cancer
T
TheRas, Inc., d/b/a BBOT (BridgeBio Oncology Therapeutics)
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TheRas, Inc., d/b/a BBOT (BridgeBio Oncology Therapeutics)
Lead Sponsor
This table compares participation in this trial with other options available for this condition. The information is drawn from published research and the trial’s study details and is provided for educational purposes only.
| Factors | BBO-11818 (Investigational, Sequential Dose/Escalation and Expansion Cohorts) | Current Standard Systemic Treatment (Guideline-Based) |
|---|---|---|
| What it is | Experimental, noncovalent KRAS inhibitor taken by mouth, studied alone and in multiple combination regimens (including immunotherapy, chemotherapy, and targeted therapies) for adults with advanced KRAS-mutant solid tumors. | Systemic chemotherapy (e.g., platinum doublets, FOLFIRINOX, or gemcitabine-based regimens) with or without immunotherapy or anti-EGFR agents, as recommended by international guidelines for advanced KRAS-mutant lung, pancreatic, or colorectal cancers. |
| Role in trial | BBO-11818 is the experimental treatment being assessed for safety, dosing, and anti-tumor activity across multiple sequential cohorts, some receiving the drug alone and others in combination with guideline-standard agents. | Serves as the routinely recommended therapy for advanced/metastatic KRAS-mutant solid tumors outside investigational settings. Selection depends on tumor type and patient characteristics according to published guidelines. |
| Primary use | Aims to inhibit mutant KRAS signaling, potentially blocking tumor growth in advanced cancers with KRAS G12A, G12C, G12D, G12S, or G12V mutations. | Established to control disease, prolong survival, and alleviate symptoms in advanced solid tumors with KRAS mutation, using guideline-recommended cytotoxic and targeted or immunotherapy drugs. |
| How it is given or performed | BBO-11818 is taken orally, either as a single agent or combined with intravenous chemotherapy, immunotherapy (such as pembrolizumab), or targeted drugs (like cetuximab, BBO-10203) following protocol-driven schedules. Dosing is escalated and expanded in sequential cohorts. | Standard care regimens are administered intravenously or orally, often in repeating cycles (e.g., every 2-3 weeks), with drugs such as platinum agents, FOLFIRINOX, mFOLFOX6, or gemcitabine; additional agents (checkpoint inhibitors or cetuximab) are incorporated as recommended by tumor type and molecular profile. |
| Evidence status | Clinical outcomes are not yet established; BBO-11818 is in early clinical investigation. Supporting preclinical data suggest potent KRAS inhibition across several mutant forms. | Benefit and risks of standard therapies are well described in multiple large trials, with improvements in survival and disease control depending on regimen, disease site, and patient factors. |
| Important limitations | Efficacy and safety in humans are unknown; outcomes will depend on ongoing and future clinical trial results. The actual benefit in comparison with standard care, especially across various tumor types and mutations, is not yet determined. | Standard treatments may have limited effectiveness for some KRAS-mutant tumors, and toxicity can restrict use. There are no approved targeted therapies covering all KRAS mutations, so responses may vary. |
Disclaimer: This comparison is created with the help of artificial intelligence(AI) and may contain errors or missing information. It is not medical advice and does not mean one option is better or safer than another. Clinical trials are still being studied, and joining a trial is your choice. Please consult your healthcare professional before making any decisions.
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Duration - 2 to 4 weeks
Participants are screened for eligibility to participate in the trial.
1 visit (in-person)
Duration - Up to approximately 5 years or until disease progression or discontinuation
Participants receive BBO-11818 alone or in combination with other cancer therapies such as pembrolizumab, platinum chemotherapy, pemetrexed, cetuximab, mFOLFOX6, BBO-10203, mFOLFIRINOX, gemcitabine, and nab-paclitaxel according to their assigned cohort.
Visits occur according to treatment administration schedules and study assessments
Study Type
INTERVENTIONAL
Masking
NONE
Allocation
NON_RANDOMIZED
Model
SEQUENTIAL
Primary Purpose
TREATMENT
Number of Arms
20
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Carlos Stahlhut, Anna E Maciag, Kyle A Sullivan...
https://pubmed.ncbi.nlm.nih.gov/41790032/TheRas, Inc., d/b/a BBOT (BridgeBio Oncology Therapeutics)
Lead Sponsor