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NCT Number: NCT07836036

Evaluation of RAS Inhibitor Treatment in Participants With Advanced or Metastatic Solid Tumors Harboring RAS Mutations

This is a phase I study to evaluate the safety, tolerability, pharmacokinetics, and anti-tumor activity of ASKC189 in in Participants With Advanced or Metastatic Solid Tumors Harboring RAS Mutations

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Key information

Age range

18 year and older

Sex eligibility

All sexes

Study type

Interventional

Phase

Phase 1

Primary location

Peking University Cancer Hospital, Beijing, China

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Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Aged ≥18 years old at the time of informed consent
  • Able to provide informed consent voluntarily before any study-related activities and according to local guidelines
  • Eastern Cooperative Oncology Group (ECOG) Performance Status of 0 or 1
  • Have an estimated life expectancy ≥ 12 weeks
  • Have histological or cytological evidence of a diagnosis of cancer that is advanced and/or metastatic with progression after treatment with available standard therapies.
  • Documentation of KRAS/NRAS/HRAS mutation determined by validated local testing of tumor tissue or circulating free DNA (cfDNA) in a certified laboratory
  • Have consented to provide archival tumor tissue collected within 3 years or newly obtained core or excisional biopsy of a tumor lesion not previously irradiated.
  • Have adequate organ functions
  • Have discontinued all previous treatments for cancer with resolution of any adverse events (AEs) to ≤ Grade 1

Exclusion criteria

  • Are currently enrolled in a clinical study involving an investigational product or any other type of medical research
  • Have tumors previously tested positive for Class I BRAF mutations i.e. V600X
  • Prior treatment with a pan-RAS(ON) inhibitor
  • Gastrointestinal conditions that may interfere with drug absorption
  • Have a serious concomitant systemic disorder
  • Have a serious pre-existing medical condition(s)
  • Prior or second concurrent primary malignancies
  • Moderate or severe cardiovascular disease
  • Have symptomatic central nervous system (CNS) malignancy or metastasis

Treatment and study plan

ASKC189

Drug

ASKC189 for every cycle of 21 days until disease progression or other criteria for treatment discontinuation will be met.

Primary outcomes

  1. The incidence and case number of DLT (Dose Limiting Toxicity) during observation period

    Time frame: Up to 21 days following first dose

    DLT is short for Dose Limiting Toxicity, dose-limiting describes side effects of a drug or other treatment that are serious enough to prevent an increase in dose or level of that treatment.

  2. Number of participants with adverse events and serious adverse events as assessed by CTCAE v6.0

    Time frame: Up to 30 days following last dose

    AE refers to any untoward medical occurrence or deterioration of existing medical event after the investigational treatment, whether or not considered related to the study treatment.

Secondary outcomes

  1. Characterization of the PK profile of ASKC189

    Time frame: At time points pre-dose, 1, 2, 4, 6, 8, 24 hours post dose

    AUC(inf) after single dose and AUC (0-τ) after single and multiple doses Maximum blood concentration (Cmax)

  2. Characterization of the PK profile of ASKC189: blood concentration characteristics

    Time frame: At time points pre-dose, 1, 2, 4, 6, 8, 24 hours post dose

    Time to maximum blood concentration (Tmax)

  3. Characterization of the PK profile of ASKC189: steady state characterization

    Time frame: At time points pre-dose, 1, 2, 4, 6, 8, 24 hours post dose

    Accumulation ratio (AR) at steady-state

  4. Characterization of the PK profile of ASKC189: drug level characterization in blood

    Time frame: At time points pre-dose, 1, 2, 4, 6, 8, 24 hours post dose

    Apparent clearance (CL/F) after single and multiple doses

  5. Characterization of the PK profile of ASKC189

    Time frame: At time points pre-dose, 1, 2, 4, 6, 8, 24 hours post dose

    ASKC189 apparent terminal half-life (t1/2)

  6. Objective response rate (ORR)

    Time frame: Up to approximately 3 years

    ORR is defined as the proportion of subjects with confirmed CR or confirmed PR (based on RECIST Version 1.1).

  7. Disease control rate (DCR)

    Time frame: Up to approximately 3 years

    DCR is defined as the proportion of subjects with CR, PR, or SD (based on RECIST Version 1.1).

  8. Duration of Response (DoR)

    Time frame: Up to approximately 3 years

    DoR is defined as the duration from the first documentation of objective response to the first documented disease progression (based on RECIST Version 1.1) or death due to any cause, whichever occurs first.

  9. Progression-free survival (PFS)

    Time frame: Up to approximately 3 years

    PFS is defined as the time from the start of treatment until the first documentation of disease progression (based on RECIST Version 1.1) or death due to any cause, whichever occurs first.

  10. Overall survival (OS)

    Time frame: Up to approximately 3 years

    OS defined as the time from the first dose to death from any cause.

Other outcomes

  1. The identification of potential predictive biomarkers associated with response or resistance to ASKC189

    Time frame: Up to approximately 3 years

    Correlation of clinical outcomes with biomarkers to specific RAS mutation subtypes, and co-mutations in tumor tissue at baseline and progressive disease.

Interested in participating?

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Trial opening soon.

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Sponsors and collaborators

Lead sponsor

Jiangsu Aosaikang Pharmaceutical Co., Ltd.

Industry

Registry information

Official study title

A Phase I, Multi-center, Open-label Study to Assess the Safety, Tolerability, Pharmacokinetics, and Preliminary Anti-tumor Activity of ASKC189 in Chinese Participants With Unresectable, Locally Advanced or Metastatic Solid Tumors Carrying RAS Gene Mutations.

Important dates

Study start
2026
Primary completion
2028
Study completion
2029
First posted
Sep 23, 2026
Registry last updated
Sep 23, 2026

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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