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Safety and Preliminary Anti-Tumor Activity of TYRA-430 in Advanced Hepatocellular Carcinoma and Other Solid Tumors With Activating FGF/FGFR Pathway Aberrations

A Multicenter, Open-label, First-in-Human Study of TYRA-430 in Advanced Hepatocellular Carcinoma and Other Solid Tumors With Activating FGF/FGFR Pathway Aberrations

Status
Recruiting
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT06915753
Acronym
SURF431
Enrollment
100
Registered
2025-04-08
Start date
2025-04-24
Completion date
2028-09-01
Last updated
2026-07-29

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Advanced Solid Tumors, FGF19 Gene Amplification, FGF19 Gene Overexpression, FGFR3 Gene Alteration, FGFR3 Gene Fusions, FGFR3 Gene Mutation, FGFR4 Gene Fusions, FGFR4 Gene Mutation, FGFR Gene Alterations, FGFR Gene Amplification, Locally Advanced Unresectable Hepatocellular Carcinoma, Metastatic Hepatocellular Carcinoma, Solid Tumor, Adult, Solid Tumors

Keywords

Hepatocellular Carcinoma, metastatic cancer, solid tumors, FGF19 gene amplifications, FGFR4 gene alterations, FGFR3 gene alterations, FGF19 gene alterations, FGFR4 gene mutations, FGFR4 gene fusions, FGFR3 gene mutations, FGFR3 gene fusions, FGF19 gene overexpression, locally advanced unresectable cancer

Brief summary

A Phase 1 study to evaluate the safety, tolerability, pharmacokinetics (PK), pharmacodynamic (PD), and preliminary antitumor activity of TYRA-430 in cancers with FGF/FGFR pathway aberrations, including locally advanced/metastatic hepatocellular carcinoma and other advanced solid tumors.

Detailed description

This is an open-label, multi-center, first-in-human, Phase 1 global study of TYRA-430, a first-in-class, selective, reversible fibroblast growth factor receptor (FGFR) 4 and 3 inhibitor, in locally advanced/metastatic hepatocellular carcinoma and other advanced solid tumors that contain FGF/FGFR pathway aberrations.

Interventions

DRUGTYRA-430

Oral TYRA-430 given daily.

Sponsors

Tyra Biosciences, Inc
Lead SponsorINDUSTRY

Study design

Allocation
NON_RANDOMIZED
Intervention model
SEQUENTIAL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

Key Inclusion Criteria: All Patients: * Age ≥ 18 years * Eastern Cooperative Oncology Group (ECOG) performance status of ≤1. * Adequate end organ function. * Ability to swallow oral formulations. * Ability to understand and willingness to sign the ICF. Part A: * Histologically confirmed locally advanced unresectable/metastatic HCC or histologically confirmed advanced solid tumor with documented FGF/FGFR pathway alterations * For participants with histologically confirmed locally advanced or metastatic HCC: * Barcelona Clinic Liver Cancer (BCLC) stage B that is not eligible for locoregional therapy, or stage C. * Child-Pugh Score class A * Must have previously received SOC appropriate for their tumor type. Any number of prior therapies, including FGFR inhibitors, are permitted. * Agree to provide archival tumor tissue no older than 2 years from the time of enrollment, if available. If an archived specimen is not available, a biopsy is not required. Part B, Cohort 1: * Histologically confirmed locally advanced/metastatic HCC who have previously received standard of care. * Barcelona Clinic Liver Cancer (BCLC) stage B that is not eligible for locoregional therapy, or stage C. * Child-Pugh Score class A * Availability of an archival formalin-fixed paraffin-embedded (FFPE) tumor tissue specimen obtained ≤2 years prior to screening for submission to sponsor-designated central laboratory for FGF19 IHC testing. * At least 1 measurable lesion by RECIST v1.1. Part B, Cohort 2: * Histologically confirmed advanced solid tumor except FGFR3-altered urothelial carcinoma and primary central nervous system tumors who have previously received standard of care. Note: Participants with confirmed diagnosis of locally advanced or metastatic HCC are not eligible for Cohort 2. * Must have an eligible activating gain-of-function alteration in the FGFR3 or FGFR4 gene, or focal amplifications of FGF19 * Archival tumor tissue biopsy specimen no older than 2 years from the time of enrollment, if available. If a tissue biopsy specimen is not available, a biopsy is not required. * At least 1 measurable lesion by RECIST v1.1. Key

Exclusion criteria

All Patients: * Have disease that is suitable for local therapy administered with curative intent. * Have not recovered from reversible toxicity of prior anticancer therapy to \< Grade 1 or baseline (except toxicities that are not clinically significant or not expected to resolve, including but not limited to, alopecia, fatigue, skin discoloration, or Grade 1 neuropathy). * Have received the following anticancer therapy: 1. Any immunotherapy or other antibody therapy within 28 days prior to the first dose of the study drug. 2. A TKI \< 5 days or 5X the terminal Phase elimination half-lives, whichever is longer, prior to the first dose of TYRA-430. 3. Other systemic therapy not listed above \< 14 days prior to the first dose of the study drug. * Participant discontinued a prior anti-FGFR therapy due to significant toxicity, defined as hepatotoxicity ≥ Grade 3 or any Grade 4 toxicity according to CTCAE v5.0. * Has a serum phosphorus level \> upper limit of normal (ULN) during screening that remains \>ULN despite medical management. * History of or current uncontrolled cardiovascular disease. * Active, symptomatic, or untreated brain metastases. * Have a diagnosis of primary CNS malignancies. * Gastrointestinal disorders that will affect oral administration or absorption of TYRA-430. * Females who are pregnant, breastfeeding, or planning to become pregnant and males who plan to father a child while enrolled in this study. * Any reason that, in the view of investigator, would substantially impair the ability of the participant to comply with study procedures and increase the risk to the participant. Part B, Cohort 1: * Known fibrolamellar HCC, sarcomatoid HCC, or mixed cholangiocarcinoma and HCC. * Prior treatment with pan-FGFR inhibitors or FGFR4-selective inhibitors. Part B, Cohort 2: * Histologically confirmed locally advanced/metastatic HCC. * Histologically confirmed urothelial cancer.

Design outcomes

Primary

MeasureTime frameDescription
Maximum tolerated dose (MTD)Up to 1 yearMTD determination: dose limiting toxicity (DLT) rate in the first 28-day cycle
Rate and severity of adverse events of TYRA-430 as monotherapyFirst dose of study drug through 28 days after the last dose of study drugNumber of participants with TEAEs as assessed by CTCAE, v5.0
Recommended Phase 2 dose(s) of TYRA-430Up to 2 yearsTo determine recommended Phase 2 dose(s) of TYRA-430

Secondary

MeasureTime frameDescription
CmaxUp to 2 years
TmaxUp to 2 years
AUC0-lastUp to 2 years
AUCTauUp to 2 years
AUC0-∞Up to 2 years
Vd/FUp to 2 years
CL/FUp to 2 years
t1/2Up to 2 years
Overall Response Rate (ORR)Up to 3.5 yearsThe proportion of patients who experience a best response of confirmed CR or PR per RECIST 1.1
Duration of Response (DOR)Up to 3.5 yearsTime from first investigator-assessed response to radiographic disease progression or death.
Disease Control Rate (DCR)Up to 3.5 yearsBest response of CR, PR, or SD per RECIST v1.1 \> 12 months.
Time to Response (TTR)Up to 3.5 yearsThe median time from the start of therapy to first response in confirmed responders.

Countries

Canada, South Korea, Taiwan, United States

Contacts

CONTACTMichele Miller
TyraClinicalTrials@tyra.bio619-728-9693
STUDY_CHAIRDoug Warner, MD

Tyra Biosciences, Inc

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Jul 30, 2026