Investigating KQB365 for treating advanced solid tumors
Official title: A Phase 1/1b, Open-label, Multicenter, Dose Escalation and Dose Optimization Study Evaluating the Safety, Tolerability, Pharmacokinetics and Efficacy of KQB365 as Monotherapy and in Combination With Anti-cancer Agents in Participants With Advanced Solid Malignancies With KRAS G12S or G12C Mutations
Run by Kumquat Biosciences Inc. · NCT06720987 · Data updated 2026-11-12
This study tests if a new treatment called KQB365, alone or with another drug, can help adults with advanced solid tumors that have specific genetic mutations.
Quick facts
| Phase | Phase 1 |
|---|---|
| Study type | Interventional |
| Ages | 18 Years and up |
| Sex | All |
| Enrollment | 140 (estimated) |
| Sponsor | Kumquat Biosciences Inc. Industry-sponsored |
| Drugs / interventions | Cetuximab |
| Locations | 11 sites (Phoenix, Arizona and 10 other locations) |
| Status | Recruiting |
| Started | February 4, 2025 |
| Main results expected | June 30, 2029 |
| Study ends | June 30, 2030 |
| Registry record updated | November 3, 2026 |
| Trial ID | NCT06720987 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Ideal candidates include adults with unresectable or metastatic solid tumors that have KRAS G12C or G12S mutations.
✕Probably not a fit
Patients with active primary central nervous system tumors, significant cardiac abnormalities, or active interstitial lung disease 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 clinical trial aims to evaluate the safety and efficacy of KQB365, both as a standalone treatment and in combination with cetuximab, for adults with advanced solid tumors harboring KRAS G12C or G12S mutations. Participants will receive weekly infusions of KQB365 and will undergo regular clinic visits to monitor their health and tumor response. The study will assess the safe dosage of KQB365, its effectiveness in reducing tumor size, and how the drug behaves in the body.
Why it matters
Potential benefit: If successful, this treatment could provide a new therapeutic option for patients with advanced solid tumors that currently have limited treatment options.
How similar studies have gone: Other studies targeting KRAS mutations have shown promise, indicating that this approach may be effective.
Who can join: the full rules
Show full inclusion / exclusion criteria
Inclusion Criteria: * PART 1 (monotherapy and combo therapy with KQB198): Histologically confirmed diagnosis of a solid tumor malignancy with either a KRAS G12C or KRAS G12S mutation. * PART 1 (combo therapy with Cetuximab) \& PART 2: Histologically confirmed diagnosis of adenocarcinoma of the colon or rectum with either a KRAS G12C or KRAS G12S mutation. * PART 1 (monotherapy Non-Small Cell Lung Cancer Cohort): Histologically confirmed diagnosis of Non-Small Cell Lung Cancer with either a KRAS G12C or KRAS G12S mutation. * Unresectable or metastatic disease * No available treatment with curative intent * Adequate organ function * Measurable disease per RECIST v1.1 Exclusion Criteria: * Active primary central nervous system tumors * Cardiac abnormalities * Active interstitial lung disease * Unable to swallow or GI condition that prevents absorption for patients in KQB198 combination cohorts
Where it's running
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Mayo Clinic, Phoenix
Phoenix, Arizona, United States Recruiting -
Sarah Cannon Cancer Institute at HealthONE
Denver, Colorado, United States Recruiting -
Mayo Clinic, Jacksonville
Jacksonville, Florida, United States Recruiting -
Dana Farber Cancer Institute
Boston, Massachusetts, United States Recruiting -
START Midwest
Grand Rapids, Michigan, United States Recruiting -
Mayo Clinic, Rochester
Rochester, Minnesota, United States Recruiting
Show 5 more locations
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Cleveland Clinic, Taussig Cancer Institute
Cleveland, Ohio, United States Recruiting -
OU Health Stephenson Cancer Center
Oklahoma City, Oklahoma, United States Recruiting -
Sydney Kimmel Cancer Center
Philadelphia, Pennsylvania, United States Recruiting -
NEXT Oncology
San Antonio, Texas, United States Recruiting -
NEXT Virginia, LLC
Fairfax, Virginia, United States Recruiting
Study contacts
- Study coordinator: Kumquat Clinical Development
- Email: kumquatstudies@kumquatbio.com
- Phone: (858) 214-2700
Similar studies
Other studies for the same condition or treatment. Recruiting studies are listed first.
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Ivonescimab alone or with carboplatin/pemetrexed for advanced NSCLC with actionable alterations
This trial tests if ivonescimab, alone or with chemotherapy, can shrink tumors in advanced NSCLC patients who have actionable genomic alterations after prior targeted therapies.
-
Targeted alpha therapy for B7-H3 expressing solid tumors using AKY-2519
This phase 1b trial tests a radiolabeled drug (AKY-2519) to see if it's safe and tolerable in adults with B7-H3 positive advanced solid tumors, including NSCLC and SCLC, with imaging to help guide use.
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Pralsetinib Drug Interaction Study in RET Fusion/MUTATION Positive Solid Tumors
This trial tests whether pralsetinib changes how the body processes certain medicines in adults with RET fusion- or mutation-positive advanced solid tumors.
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TGI-5 alone and with nivolumab for advanced or metastatic solid tumors
This trial tests whether TGI-5 by itself or combined with nivolumab is safe and can shrink tumors in adults with advanced or metastatic colorectal cancer, melanoma, hepatocellular carcinoma, or non‑small cell lung cancer who have exhausted standard treatments.
-
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.
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Evaluating daraxonrasib for previously treated patients with RAS mutated lung cancer
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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.