A Phase I/II Study of ABSK141 in Patients With Advanced Solid Tumors ( ABSK141-101 )
A Phase I/II, Open-Label Study of ABSK141 to Assess Safety, Tolerability, Efficacy and Pharmacokinetics in Patients With KRAS G12D Mutant Advanced Solid Tumors
1 other identifier
interventional
401
1 country
1
Brief Summary
This is a first-in-human (FIH), exploratory, multicenter, open-label, phase I/II study of ABSK141 in patients with advanced solid tumors to to evaluate safety, tolerability, PK and optimize the dosage.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for phase_1
Started Mar 2026
Typical duration for phase_1
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
Click on a node to explore related trials.
Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
January 28, 2026
CompletedFirst Posted
Study publicly available on registry
February 18, 2026
CompletedStudy Start
First participant enrolled
March 2, 2026
CompletedPrimary Completion
Last participant's last visit for primary outcome
December 30, 2028
ExpectedStudy Completion
Last participant's last visit for all outcomes
July 30, 2029
March 11, 2026
March 1, 2026
2.8 years
January 28, 2026
March 9, 2026
Conditions
Keywords
Outcome Measures
Primary Outcomes (3)
Incidence of DLTs
dose-limiting toxicities
from Run-in to Day28
Incidence and severity of AEs
Adverse events
from the time that the patient provides informed consent through and including 30 days after the last administration of ABSK141.
Incidence and severity of SAEs
serious adverse events
from the time that the patient provides informed consent through and including 30 days after the last administration of ABSK141.
Secondary Outcomes (10)
Cmax
From pre-dose to up to 72 hours post-dose
AUC
From pre-dose to up to 72 hours post-dose
t1/2
From pre-dose to up to 72 hours post-dose
CL/F
From pre-dose to up to 72 hours post-dose
tmax
From pre-dose to up to 72 hours post-dose
- +5 more secondary outcomes
Study Arms (6)
Escalation part-400mg
EXPERIMENTALABSK141 (investigational drug) tablet, 400 mg administered orally once daily (QD), continuously until disease progression.
expansion part
EXPERIMENTALABSK141 (investigational drug) tablet,Recommended Dose for Expansion (RDE) administered orally once daily (QD), continuously until disease progression.
Escalation part-800mg
EXPERIMENTALABSK141 (investigational drug) tablet, 800 mg administered orally once daily (QD), continuously until disease progression.
Escalation part-1200mg
EXPERIMENTALABSK141 (investigational drug) tablet, 1200 mg administered orally once daily (QD), continuously until disease progression.
Backfill cohorts
EXPERIMENTALABSK141 (investigational drug) tablet, The decision-making on doses for backfill cohorts will be based on the discussion and alignment between the Sponsor and Investigator.
Phase II
EXPERIMENTALABSK141 (investigational drug) tablet, administered at the Recommended Phase 2 Dose (RP2D) continuously until disease progression.
Interventions
In the escalation part#patients will first orally receive a single dose of ABSK141 on D-3, followed by a three-day run-in period to assess the PK profile of singledose ABSK141 400mg administration. Thereafter, patients will continuously receive ABSK141 400mg once daily (QD).
In the expansion part# patients will orally receive ABSK141 at the recommended dose for expansion (RDE).patients will continuously receive ABSK141 Recommended Dose for Expansion (RDE) once daily (QD).
In the escalation part#patients will first orally receive a single dose of ABSK141 on D-3, followed by a three-day run-in period to assess the PK profile of singledose ABSK141 800mg administration. Thereafter, patients will continuously receive ABSK141 800mg once daily (QD).
In the escalation part#patients will first orally receive a single dose of ABSK141 on D-3, followed by a three-day run-in period to assess the PK profile of singledose ABSK141 1200mg administration. Thereafter, patients will continuously receive ABSK141 1200mg once daily (QD).
Phase II #patients will orally receive ABSK141 at the Recommended Phase 2 Dose (RP2D).
Eligibility Criteria
You may qualify if:
- Patients should understand, sign, and date the written informed consent form prior to screening
- Male or female age 18 years or older
- Patients with histologically confirmed locally-advanced or metastatic solid tumors .
- For backfill cohorts in the escalation part:
- Patients must have the following solid tumor harboring KRAS G12D mutation:
- Colorectal cancer (CRC);
- Non-small cell lung cancer (NSCLC);
- Pancreatic ductal adenocarcinoma (PDAC);
- Patients must have at least one measurable target lesion according to RECIST 1.1
- For expansion Part:
- Patients must have the following solid tumor harboring KRAS G12D mutation:
- Colorectal cancer (CRC);
- Non-small cell lung cancer (NSCLC);
- Pancreatic ductal adenocarcinoma (PDAC);
- Other solid tumors;
- +10 more criteria
You may not qualify if:
- Known allergy or hypersensitivity to any component of the investigational product
- (For backfill cohorts and expansion part) Patients who were previously treated with an investigational KRAS G12D inhibitor, pan- or multi-RAS inhibitor, or had prior therapy with any direct RAS-targeted therapy
- Has a known additional malignancy that is progressing or has required active treatment
- Unable to swallow capsules or tablets or malabsorption syndrome, disease significantly affecting GI function, or resection of the stomach or small bowel, symptomatic inflammatory bowel disease or ulcerative colitis, or partial or complete bowel obstruction. If any of these conditions exist, the site should discuss with the sponsor to determine patient eligibility
- Previous anti-tumor therapy, including chemotherapy, endocrine therapy, molecular targeted therapy or other investigational drugs received ≤2 weeks or ≤5-half life (whichever is shorter), radiotherapy and antibody therapy received ≤4 weeks prior to initiation of study treatment
- Major surgery within 4 weeks of the first dose of study drug. Note that all surgical wounds must be healed and free of infection or dehiscence
- Prior toxicities from chemotherapy, radiotherapy, and other anti-cancer therapies, including immunotherapy, that have not regressed to Grade ≤1 severity (CTCAE v5.0)
- Patients should not use proton pump inhibitors for at least 7 days prior to the first dose of ABSK141 and during treatment with ABSK141.
- P-gp inhibitor and strong CYP3A inhibitors to 7 days or 5 half-lives whichever is longer and for CYP3A inducers to 2 weeks or 5 half-lives
- Active central nervous system (CNS) metastases
- History of interstitial lung disease requiring systemic steroid treatment.
- Impaired cardiac function or clinically significant cardiac disease
- NSCLC cohorts: Patient previously identified as having a driver mutation (according to local standard of care or guidelines) and have not received any targeted therapy, for example: EGFR mutation, ALK rearrangement, KRAS G12C mutation, NTRK1/2/3 gene fusion, RET fusion, MET exon14 skipping mutation, BRAF V600E mutation, ROS1 rearrangement, etc
- Known acquired immunodeficiency syndrome (AIDS)-related illness, or positive test for HIV 1/2 antibody
- Patients with refractory/uncontrolled ascites or pleural effusion
- +6 more criteria
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
Fudan University Shanghai Cancer Center
Shanghai, 201321, China
MeSH Terms
Interventions
Intervention Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Xianjun Yu, Doctor
Fudan University
Central Study Contacts
Study Design
- Study Type
- interventional
- Phase
- phase 1
- Allocation
- NON RANDOMIZED
- Masking
- NONE
- Purpose
- TREATMENT
- Intervention Model
- SEQUENTIAL
- Sponsor Type
- INDUSTRY
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
January 28, 2026
First Posted
February 18, 2026
Study Start
March 2, 2026
Primary Completion (Estimated)
December 30, 2028
Study Completion (Estimated)
July 30, 2029
Last Updated
March 11, 2026
Record last verified: 2026-03
Data Sharing
- IPD Sharing
- Will not share