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NCT06359847RecruitingPhase 2

Study of ST-1898 in Locally Advanced or Metastatic Radioiodine-Refractory Differentiated Thyroid Cancer

A Multicenter, Phase II Clinical Trial to Evaluate the Efficacy and Safety of ST-1898 Tablets in Patients With Locally Advanced or Metastatic RAIR-DTC After Failure of at Least First-line TKI Systemic Therapy

Source: ClinicalTrials.gov · Last updated 24 Aug 2025 · Not updated for over 12 months - ask the site whether it is still open

Brief summary (registry, in English)

ST-1898, a multi-targeted tyrosine kinase inhibitor, has demonstrated strong inhibitory activity for VEGFR2, c-MET, AXL, PDGFRA, RET, KIT, etc. The primary purpose of this study is to evaluate the efficacy of ST-1898 tablets in patients with locally advanced or metastatic RAIR-DTC after failure of at least first-line TKI systemic therapy. All subjects will receive ST-1898 180 mg orally once daily until disease progression or intolerable toxicity.

Status (registry)
Recruiting
Phase (registry)
Phase 2
Study type
Interventional
Enrollment
60 (estimated)
First submitted
3 Jan 2024
Start date
15 Nov 2023
Primary completion date
Dec 2027
Lead sponsor
Beijing Scitech-Mq Pharmaceuticals Limited
NCT number
NCT06359847

What you commit to

  • Study type: Interventional · Phase 2
  • Planned participants: 60
  • From 15 Nov 2023 to the primary completion date, Dec 2027
  • 1 site in 1 country
  • Visits and tests: ask the trial team, the registry does not list them

Built from the registry fields of ClinicalTrials.gov. It describes the study, not your situation.

Who cannot take part

Copied verbatim from ClinicalTrials.gov and grouped by topic. Only the trial team decides who can take part.

Prior treatment

  • Participants who have received any antitumor treatment within 4 weeks or 5 half-lives of the agent (contingent on the shorter time) prior to the first dose of study drug.
  • Patients who underwent major surgery, open biopsy or significant traumatic injury within 4 weeks prior to the first dose of study drug.
  • ≥ grade 3 bleeding episodes within 6 months prior to first dose of study treatment, or currently ≥ grade 2 hemorrhage, with high bleeding risks (such as coagulation disorders, tracheobronchial infiltration with significant bleeding, active gastrointestinal ulcer and esophageal varices)
  • Active hemoptysis or more than 0.5 teaspoon (2.5 mL) of hemoptysis per day within 2 months before first dose of study treatment
  • Current or previous severe retinopathy who, in the judgment of the Investigator or specialist, are not suitable for enrollment
  • Known brain metastasis unless adequately treated with radiotherapy and/or surgery (including radiosurgery) and stable for at least 4 weeks before first dose of study treatment. Eligible subjects must be neurologically asymptomatic and with a stable dose of corticosteroid treatment before first dose of study treatment.
  • Receiving chronic concomitant treatment of strong CYP3A4 inducers, CYP3A4 inhibitors or CYP3A4 substrate with a narrow therapeutic window within 2 weeks prior to study drug administration,
  • Prior treatment of BRAF inhibitors.
  • Has not recovered from toxicities caused by prior therapy to CTCAE ≤Grade 1 (except for ≤Grade 2 peripheral neuropathy, alopecia, and other events judged tolerable by the Investigator and without safety risks).
  • Drug or alcohol dependents.

Other illness

  • Other histological subtypes of thyroid cancers excluding DTC (such as Anaplastic Thyroid Carcinoma and Medullary Thyroid Carcinoma).
  • Known hypersensitivity to any component of ST-1898 tablets.
  • Serious non-healing wound/ulcer/bone fracture.
  • Significant cardiovascular impairment, including but not limited to:
    • Serious arrhythmia or cardiac conduct abnormality, such as degree II-III atrioventricular block or ventricular arrhythmia needs to be treated.
    • QTcF interval extension (by the Fridericia formula): male \>450 ms, female \>480 ms
    • Acute coronary syndrome, stroke, deep vein thrombosis, pulmonary- thromboembolism, arterial thrombosis, congestive heart failure, aortic dissection etc.
    • New York Heart Association Class ≥ II
    • Uncontrolled hypertension, as defined by a sustained blood pressure (BP) \> 140/90 mmHg.
  • Interstitial lung disease or radiation pneumonia in need of glucocorticoids intervention
  • Subjects with malignant tumors in the last 5 years (not including non-melanoma skin cancer, breast cancer or cervical cancer in situ, and Non-Muscle-invasive bladder cancer have been cured)
  • Acute bacterial, viral or fungal infections (any infection requiring systemic treatment)
  • Significant disorder of neurology or mental disease or poorly compliance.
  • Subjects with oral administration impossible, or in the conditions of malabsorption as determined by the investigator, such as dysphagia and intestinal obstruction, etc..
  • Any history of other serious systemic diseases, or any other reason that might interfere with participation in trial or interfere with interpretation of trial results, in the judgement of the Investigator, that are not qualified to participate in this trial.

Lab values

  • HIV antibodies or Treponema pallidum antibodies positive, active hepatitis B (HBV-DNA≤ 2×ULN allowed to enroll), hepatitis C virus (HCV) antibody-positive and HCV-RNA- positive, or other active hepatitis, clinically significant moderate-to-severe cirrhosis. Prophylactic antiviral therapy other than interferon are allowed.

Other

  • Subjects with antiplatelet agents treatment (low-dose aspirin ≤100 mg/day is permitted).
  • Females who are pregnant or breastfeeding.
  • Uncontrolled pleural effusion, pericardial effusion, abdominal effusion requiring frequent drainage or medical intervention (clinically significant recurrence requiring additional intervention within 2 weeks after intervention, excluding exudate cytology) before first dose of study treatment.

Criteria the registry did not label

  • Eligibility Minimum Age: 18 Years
  • Maximum Age:
  • Sex: All
  • Gender Based:
  • Accepts Healthy Volunteers: No
  • Criteria: Inclusion Criteria:
  • Age \>= 18 years
  • Life expectancy of twelve weeks or more
  • Histologically or cytologically confirmed locally advanced or metastatic DTC that cannot be removed by surgery or radiotherapy, including papillary thyroid cancer, follicular thyroid cancer, hurthle cell thyroid cancer or poorly differentiated thyroid cancer.
  • At least one measurable lesion according to RECIST 1.1
  • Radioiodine-refractory (RAI-refractory) differentiated thyroid cancer can be diagnosed when any of the following criteria are met under thyroid-stimulating hormone (TSH) stimulation (\>30 mU/L) in the absence of exogenous iodine interference:
    • Negative uptake in one or more measurable lesions after receiving I-131 treatment or scanning
    • One or more measurable lesions that has progressed as per RECIST 1.1 within 14 months of 131I therapy（3.7\~7.4 GBq or100\~200 mCi）,despite demonstration of radioiodine avidity at the time of that treatment by pre- or post-treatment scanning.
    • Cumulative activity of 131I of \> 22 GBq or 600 mCi, with the last dose administered at least 6 months prior to study entry
  • Subjects with DTC who failed with or was intolerant to at least one prior tyrosine kinase inhibitor (TKI) therapy. If prior treatment with VEGFR-TKI, no more than two VEGFR-TKIs were allowed.
  • Recommendation of subject offering archived tissue sample or previous biomarker of MET test report. If archived tumor sample is not available, a fresh biopsy is optional, which need to be taken from needle biopsy or core needle biopsy (fine needle biopsy not allowed). Subjects who cannot provide tissue samples or test reports may still be eligible to participate if the investigator determines a potential clinical benefit from ST-1898 therapy.
  • Eastern Cooperative Oncology Group (ECOG) performance status of 0 or 1.
  • TSH-suppression therapy is well tolerated with thyroid stimulating hormone (TSH) \< 0.5 mU/L;
  • The patient has adequate organ and bone marrow function as follows:
    • Adequate bone marrow function (without transfusion or colony stimulating factor support within 2 weeks): hemoglobin ≥ 90 g/L, absolute neutrophil count (ANC) ≥ 1.5 ×10\^9/L and platelets ≥ 100 × 10\^9/L;
    • Adequate liver function: Bilirubin ≤ 1.5 × upper limit of normal (ULN); Alanine aminotransferase (ALT), and aspartate aminotransferase (AST) ≤ 3 × ULN (≤ 5 × ULN if participant has liver metastases);
    • Adequate renal function: Serum creatinine ≤1.5 ×ULN or creatinine clearance≥50 mL/min per the Cockcroft-Gault formula;
    • Adequate blood coagulation function: International Normalized Ratio (INR) ≤ 1.5 and Activated partial thromboplastin time (APTT) ≤1.5 ULN（except for the prophylactic use of anticoagulants）
    • Adequate cardiac function: Left ventricular ejection fraction (LVEF) ≥50%;
    • Participants having≤ 1 + proteinuria or ≥2+ proteinuria with urine protein \< 1 g/24 hour.
  • Ability to understand and the willingness to sign a written informed consent document. The results of routine examination during the corresponding window period before screening are acceptable.
  • Women with child-bearing potential and men must agree to use adequate contraception (e.g., hormonal contraceptives, male or female condom, or abstinence) during the course of the study and for at least 3 months following the last dose of study drug. Women with childbearing potential must have a negative serum pregnancy test within 7 days before first study treatment.

Age in the registry: 18 years to - · Sex: All · Does not accept healthy volunteers

Full criteria on ClinicalTrials.gov

Sites (1)

Sites in registry order. Pick your city on the disease page to sort them by distance.

SiteCityCountrySite status
Peking Union Medical College Hospital
Coordinator of this site? Confirm its status		BeijingChinaRecruiting

This page is information, not medical advice. Discuss any trial with your doctor.