Evaluating BBO-8520 for treating KRAS G12C non-small cell lung cancer
Official title: A Phase 1a/1b Open-Label Study Evaluating the Safety, Tolerability, Pharmacokinetics, and Efficacy of BBO-8520 in Subjects With Advanced KRASG12C Mutant Non-Small Cell Lung Cancer - The ONKORAS-101 Study
Run by TheRas, Inc., d/b/a BBOT (BridgeBio Oncology Therapeutics) · NCT06343402 · Data updated 2026-11-12
This study is testing a new drug called BBO-8520 to see if it can safely help adults with a specific type of lung cancer that has a KRAS G12C mutation, both on its own and when combined with another treatment.
Quick facts
| Phase | Phase 1 |
|---|---|
| Study type | Interventional |
| Ages | 18 Years and up |
| Sex | All |
| Enrollment | 350 (estimated) |
| Sponsor | TheRas, Inc., d/b/a BBOT (BridgeBio Oncology Therapeutics) Industry-sponsored |
| Drugs / interventions | pembrolizumab |
| Locations | 38 sites (Birmingham, Alabama and 37 other locations) |
| Status | Recruiting |
| Started | May 22, 2024 |
| Main results expected | April 2031 |
| Study ends | September 2031 |
| Registry record updated | September 3, 2026 |
| Trial ID | NCT06343402 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Ideal candidates are adults with histologically confirmed locally advanced or metastatic non-small cell lung cancer with a KRAS G12C mutation and an ECOG performance status of 0-1.
✕Probably not a fit
Patients with untreated brain metastases or those with a history of autoimmune diseases may not benefit from this study.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
This open-label, multi-center Phase 1 study aims to assess the safety, tolerability, pharmacokinetics, and preliminary efficacy of BBO-8520, a direct inhibitor of KRAS G12C, both as a standalone treatment and in combination with pembrolizumab. The trial focuses on adult patients with locally advanced and unresectable or metastatic non-small cell lung cancer harboring the KRAS G12C mutation. It includes a dose escalation phase followed by a dose expansion phase to gather comprehensive data on the drug's performance.
Why it matters
Potential benefit: If successful, this treatment could provide a new therapeutic option for patients with KRAS G12C mutated non-small cell lung cancer.
How similar studies have gone: Other studies targeting KRAS mutations have shown promise, indicating potential for success with this novel approach.
Who can join: the full rules
Show full inclusion / exclusion criteria
Inclusion Criteria: * Histologically documented locally advanced and unresectable or metastatic non-small cell lung cancer with a KRAS G12C mutation * Measurable disease by RECIST v1.1 * Eastern Cooperative Oncology Group (ECOG) performance status (PS) 0-1 Exclusion Criteria: * Patients with malignancy within the last 2 years as specified in the protocol * Patients with untreated or unstable brain metastases * Patients with known hypersensitivity to BBO-8520 or its excipients * For Cohorts 1b and 2b: * Patients with a known hypersensitivity to pembrolizumab or its excipients * Patients with active autoimmune disease of history of autoimmune disease that might recur * Patients with a history of interstitial lung disease/pneumonitis that required steroids, or current interstitial lung disease/pneumonitis Other inclusion/exclusion criteria may apply
Where it's running
-
O'Neal Comprehensive Cancer Center at UAB
Birmingham, Alabama, United States Recruiting -
University of California - San Diego Moores Cancer Center
La Jolla, California, United States Recruiting -
University of California San Francisco
San Francisco, California, United States Recruiting -
UCLA Health - Santa Monica Cancer Care
Santa Monica, California, United States Recruiting -
University of Colorado Cancer Center
Aurora, Colorado, United States Recruiting -
Yale Cancer Center
New Haven, Connecticut, United States Recruiting
Show 32 more locations
-
Norwalk Hospital
Norwalk, Connecticut, United States Recruiting -
OSF Saint Francis Medical Center
Peoria, Illinois, United States Recruiting -
University of Kansas Medical Center
Kansas City, Kansas, United States Recruiting -
University of Maryland Marlene & Stewart Greenebaum Comprehensive Cancer Center
Baltimore, Maryland, United States Recruiting -
Henry Ford Cancer - Detroit
Detroit, Michigan, United States Recruiting -
Roswell Park Cancer Institute
Buffalo, New York, United States Recruiting -
Perlmutter Cancer Center - NYU Langone Health
New York, New York, United States Recruiting -
Memorial Sloan Kettering Cancer Center
New York, New York, United States Recruiting -
Cleveland Clinic
Cleveland, Ohio, United States Recruiting -
USOR - Oncology Associates of Oregon, P.C
Eugene, Oregon, United States Recruiting -
SCRI Oncology Partners
Nashville, Tennessee, United States Recruiting -
Oncology Consultants Texas Medical Center
Houston, Texas, United States Recruiting -
USOR - Texas Oncology - (DFW) Waco
Waco, Texas, United States Recruiting -
Huntsman Cancer Institute
Salt Lake City, Utah, United States Recruiting -
NEXT Oncology
Fairfax, Virginia, United States Recruiting -
Fred Hutchinson Cancer Center
Seattle, Washington, United States Recruiting -
Northwest Medical Specialties
Tacoma, Washington, United States Recruiting -
Kinghorn Cancer Centre
Darlinghurst, New South Wales, Australia Recruiting -
Flinders Medical Centre
Bedford Park, South Australia, Australia Recruiting -
The Queen Elizabeth Hospital
Woodville South, South Australia, Australia Recruiting -
Peninsula & South Eastern Hematology and Oncology Group (PAS)
Frankston, Victoria, Australia Recruiting -
Peter MacCallum Cancer Centre
Melbourne, Victoria, Australia Recruiting -
Linear Clinical Research
Nedlands, Western Australia, Australia Recruiting -
Cross Cancer Institute
Edmonton, Alberta, Canada Recruiting -
Juravinski Cancer Centre
Hamilton, Ontario, Canada Recruiting -
The Princess Margaret Cancer Centre
Toronto, Ontario, Canada Recruiting -
Jewish General Hospital
Montreal, Quebec, Canada Recruiting -
Rigshospitalet
Copenhagen, Denmark Recruiting -
Vall d'Hebron University Hospital
Horta-Guinardó, Barcelona, Spain Recruiting -
START Barcelona - Hospital HM Nou Delfos
Barcelona, Spain Recruiting -
START Madrid - Hospital Universitario Fundación Jiménez Díaz
Madrid, Spain Recruiting -
Hospital Universitario Quirónsalud Madrid
Madrid, Spain Recruiting
Study contacts
- Study coordinator: TheRas, Inc., d/b/a BBOT (BridgeBio Oncology Therapeutics)
- Email: onkoras-101ct.gov@bridgebiooncology.com
- Phone: 650-405-8440
Similar studies
Other studies for the same condition or treatment. Recruiting studies are listed first.
-
BBO-11818 treatment for adults with KRAS mutant cancer
This study is testing a new drug called BBO-11818 to see if it can help adults with certain types of cancer that have specific KRAS mutations.
-
Reduced chemotherapy and immunotherapy for older adults with advanced lung cancer
This study is testing a lower dose of chemotherapy combined with immunotherapy to see if it's safe and tolerable for older adults over 70 with advanced lung cancer who can’t have curative treatment.
-
Combining Adagrasib with Stereotactic Radiosurgery for Brain Metastases in Lung Cancer
This study is testing whether combining a targeted therapy called adagrasib with a type of focused radiation treatment can help people with lung cancer that has spread to the brain feel better.
-
Investigating OBX-115 for advanced solid tumors
This study is testing a new treatment called OBX-115 to see if it can help adults with advanced solid tumors like metastatic melanoma and non-small cell lung cancer feel better and live longer.
-
Evaluating BDTX-4933 for patients with specific cancer mutations
This study is testing a new drug called BDTX-4933 to see if it can help adults with advanced cancers that have certain gene mutations feel better and improve their treatment options.
-
SI-B036 safety test in advanced and metastatic solid tumors
This early-phase study checks whether SI-B036 is safe and tolerable in adults with advanced or metastatic solid cancers who have had prior therapy.
How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.