Skip to content

A Study to Assess the Safety, Tolerability, and Pharmacokinetics of ABSK-021 in Patients With Advanced Solid Tumor

A Phase 1, Open-Label Study of ABSK021 to Assess Safety, Tolerability, and Pharmacokinetics in Patients With Advanced Solid Tumor

Status
Recruiting
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04192344
Enrollment
276
Registered
2019-12-10
Start date
2020-01-20
Completion date
2026-12-31
Last updated
2026-03-19

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

Conditions

Neoplasms, Tenosynovial Giant Cell Tumor

Keywords

Tenosynovial Giant Cell Tumor, TGCT, Solid tumors

Brief summary

This is an open-label phase 1 study to determine the safety and tolebility of oral ABSK021 in patients with advanced solid tumor as well as the Recommended Phase 2 dose (RP2D) of oral ABSK021. Preliminary antitumor activity will also be assessed.

Detailed description

The study will start with a dose escalation part of single-agent ABSK021 administered in repeated 28-day cycles in patients with advanced solid for safety and tolerability. The expansion part of oral ABSK021 at recommended dose of expansion (RDE) will be followed for further evaluating safety and tolerability among selected tumor types. Preliminary antitumor activity will also be assessed.

Interventions

ABSK021 oral capsule

Sponsors

Abbisko Therapeutics Co, Ltd
Lead SponsorINDUSTRY

Study design

Allocation
NA
Intervention model
SEQUENTIAL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

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

Inclusion criteria

* Histologically confirmed solid tumors that have progressed on or intolerant to standard therapy or whom no standard therapy exists * ECOG (electrocorticogram) performance status 0\~1 * Life expectancy ≥ 3 months * Adequate organ function and bone marrow function For patients with tenosynovial giant cell tumor (TGCT) : 1. A diagnosis of TGCT \[i ncluding pigmented villonodular synovitis (PVNS) or giant cell tumors of the tendon sheath (GCT TS) (i) that has been histologically confirmed either by a pathologist at the treating institution or a central pathologist, and (ii) where surgical resection would be associated with potentially worsening functional limitation or severe morbidity (locally advanced disease), with morbidity determined consensually by qualified personnel (eg, two surgeons or a multi disciplinary tumor board); 2. Measurable disease as defined by RECIST 1.1 (except that a minimal size of 2 cm is required), assessed from MRI scans; 3. Others

Exclusion criteria

* Known allergy or hypersensitivity to any component of the investigational drug product Previous treatment with CSF-1(colony stimulating factor 1)/CSF-1R (colony stimulating factor 1 receptor) pathway inhibitors * Known additional malignancy that is progressing or required active treatment within 3 years of the first dose of study treatment * Inability to take oral medication or significant nausea and vomiting, malabsorption, external biliary shunt, or significant bowel resection that would preclude adequate absorption of oral medication * Previous anti-cancer therapy, including chemotherapy, radiotherapy, endocrine therapy or molecular targeted therapy within ≤ 5-halflife or ≤ 4 weeks (whichever is shorter) prior to initiation of study treatment (chemotherapy with nitrosourea or mitomycin should be 6 weeks prior to initiation of study treatment) * Major surgery within 4 weeks of the first dose of study drug and 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 ≤2 severity (CTCAE v5.0) with the exception of alopecia and vitiligo * Prior corticosteroids as anti-cancer therapy within a minimum of 2 weeks of the first dose of study drug * Concomitant use of strong inhibitors or inducers of CYP3A4 * Active central nervous system (CNS) metastases * Impaired cardiac function or clinically significant cardiac disease * Patients with Gilbert's Syndrome or other underlying conditions that may lead to a greater likelihood of developing LFT(liver function test) abnormalities during the study * Known human immunodeficiency virus or active hepatitis B, or active hepatitis C infection * Refractory/uncontrolled ascites or pleural effusion * Pregnant or nursing For patients with tenosynovial giant cell tumor (TGCT) : 1. Known allergy or hypersensitivity to any component of the investigational drug product 2. For expansion part, previous treatment with CSF 1/CSF 1R pathway inhibitors (not applicable for TGCT patients in US) 3. Others

Design outcomes

Primary

MeasureTime frameDescription
Incidence of DLTsAt the end of Cycle 1 (each cycle is 28 days)DLT(dose-limiting toxicity)
Incidence and Severity of AEsThrough study completion, an average of 6 monthsAdverse events (AEs), adverse events of special interest (AESIs) and serious adverse events (SAEs)

Secondary

MeasureTime frameDescription
PFSFrom date of enrollment until the date of first documented progression or death, assessed up to 12 monthsProgression-Free Survival (PFS)
DoRFrom date of enrollment until the date of first documented progression or death, assessed up to 12 monthsDuration of Response (DoR)
DCR24 weeks post-doseDisease Control Rate (DCR)
CmaxPre-dose and multiple timepoints (up to 72 hours) post-doseThe peak plasma concentration of a drug after administration
tmaxPre-dose and multiple timepoints (up to 72 hours) post-doseTime to reach Cmax
BioavailabilityPre-dose and multiple timepoints (up to 72 hours) post-doseThe systemically available fraction of a drug
Elimination half-lifePre-dose and multiple timepoints (up to 72 hours) post-doseThe time required for the concentration of the drug to reach half of its original value

Countries

China, United States

Contacts

CONTACTYUAN LU
clinical@abbisko.cn+86-21-68910052
CONTACTSiqing Fu, MD
siqingfu@mdanderson.org(713)792-4318
PRINCIPAL_INVESTIGATORSiqing Fu, MD

M.D. Anderson Cancer Center

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: May 29, 2026