A Study of CS3007 in Subjects With Gastrointestinal Stromal Tumor

April 25, 2023 updated by: CStone Pharmaceuticals

A Phase I/II Clinical Study of Avapritinib in Chinese Subjects With Unresectable or Metastatic Gastrointestinal Stromal Tumor

This study is an open-label, multicenter, phase I/II study to evaluate the safety, PK and clinical efficacy of avapritinib in Chinese subjects with unresectable or metastatic GIST. The study consists of two parts: dose escalation (phase I) and dose expansion (phase II).

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Completed

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
65

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Phase 2
  • Phase 1

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • China
    • Beijing
      • Beijing, Beijing, China
        • Beijing Cancer Hospital
      • Beijing, Beijing, China
        • Chinese PLA General Hospital
    • Chongqing
      • Chongqing, Chongqing, China
        • The First Affiliated Hospital of Chongqing Medical University
    • Fujian
      • Fuzhou, Fujian, China
        • Fujian Medical University Union Hospital
    • Guangdong
      • Guangzhou, Guangdong, China
        • The First Affiliated Hospital of Sun Yat-sen University
      • Guangzhou, Guangdong, China
        • The Sixth Affiliated Hospital of Sun Yat-sen University
    • Heilongjiang
      • Harbin, Heilongjiang, China
        • Harbin Medical University Cancer Hospital
    • Hubei
      • Wuhan, Hubei, China
        • Wuhan Union Hospital Tongji Medical College Huazhong University of Science and Technology
    • Jiangxi
      • Nanchang, Jiangxi, China
        • The First Affiliated Hospital of Nanchang Medical University
    • Liaoning
      • Shenyang, Liaoning, China
        • Liaoning Cancer Hospital & Institute
    • Shanghai
      • Shanghai, Shanghai, China
        • Fudan University Shanghai Cancer Center
      • Shanghai, Shanghai, China
        • Renji Hospital Affiliated to Shanghai Jiaotong University School of Medicine
      • Shanghai, Shanghai, China
        • Fudan University Zhongshan Hospital (General Surgery Department)
      • Shanghai, Shanghai, China
        • Fudan University Zhongshan Hospital (Internal Tumor Department)
    • Xinjiang
      • Urumqi, Xinjiang, China
        • Xinjiang Medical University Cancer Hospital
    • Zhejiang
      • Hangzhou, Zhejiang, China
        • The First Affiliated Hospital Zhe Jiang University

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Description

Inclusion criteria:

  1. For phase I study, the subject must have histologically or cytologically confirmed unresectable or metastatic GIST that progressed after imatinib and at least one additional TKI treatment, or who cannot tolerate the standard treatment or have D842V mutation in the PDGFRα gene.

  2. For phase II study:

    i) Group 1: Chinese subjects with unresectable GIST harboring D842V mutation in PDGFRα gene.

    ii) Group 2: Chinese third-line and fourth-line or later subjects with unresectable GIST that has progressed after standard treatment and/or do not tolerate standard treatment, and do not have a known D842V mutation in the PDGFRα gene.

  3. Subjects with at least one measurable lesion as defined per mRECIST v1.1
  4. Eastern Cooperative Oncology Group (ECOG) performance status of 0 to 1.

Exclusion Criteria

  1. Subject has any of the laboratory results that meet exclusion criteria
  2. Subjects who have previously received antineoplastic medication, including Chinese herbal drugs or Chinese medicine products with antineoplastic indications, for less than 5 half-lives or 14 days, whichever is shorter, prior to the first dose of the investigational product.
  3. The subject received neutrophil growth factor support within 14 days prior to the first dose of investigational product.
  4. Subjects received treatment with a strong inhibitor or strong or moderate inducer of cytochrome P450 (CYP) 3A4 within 14 days prior to the first dose of study drug, or requires continuous intake of above medications or foods during study period.
  5. Subject received a major surgery (not including minor procedures, e.g., central venous catheterization, tumor needle biopsy, feeding tube placement) within 14 days prior to the first dose of investigational product.
  6. Diagnosis of any other malignancy within 1 year prior to the first dose of investigational product or the subject is under treatment for another malignancy.
  7. Corrected QT interval > 450 msec calculated using Fridericia's formula.
  8. Subject has history of seizure (e.g. epilepsy) or requires antiepileptic medication treatment.
  9. History of cerebrovascular accident or transient ischemic attack within one year prior to the first dose of the investigational product.
  10. Known risk of intracranial hemorrhage, e.g., history of cerebral aneurysm or subdural or subarachnoid hemorrhage.
  11. With primary brain malignancy or brain metastasis.
  12. With clinically significant, uncontrolled cardiovascular disease, including congestive heart failure of New York Heart Association (NYHA) class II, III or IV, myocardial infarction or unstable angina in the past 6 months, or uncontrolled hypertension.
  13. Unwilling or unable to comply with scheduled visits, treatment plan, laboratory tests or other study procedures/restrictions.
  14. With previous or current clinically significant disorder, medical condition, history of surgery, physical issue or laboratory finding, which, in the investigator's judgment, might affect the subject's safety, change the absorption, distribution, metabolism or excretion of the investigational product, or interfere with the evaluation of study result.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: N/A
  • Interventional Model: Sequential Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Experimental: CS3007(BLU-285)
Drug: CS3007 (BLU-285)
A modified "3+3" dose escalation design will be adopted. Each group will enroll 3-6 subjects. Avapritinib will be administered orally at the starting of 200 mg QD. A cycle consists of 28 consecutive days.

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Time Frame
Phase I: Recommended Phase II dose (RP2D), incidence of dose limiting toxicities (DLT) in Cycle 1, incidence and severity of adverse events and serious adverse events and changes in vital signs, clinical laboratory results and ECG findings
Time Frame: at the end of Cycle 1 (each cycle is 28 days) for RP2D and DLT; during every cycle through 30 days after the last dose of study drug, an average of approximately 24 months, for other measures
at the end of Cycle 1 (each cycle is 28 days) for RP2D and DLT; during every cycle through 30 days after the last dose of study drug, an average of approximately 24 months, for other measures
Phase II: ORR based on mRESIST 1.1
Time Frame: At Cycle 3 (each cycle is 28 days) Day 1, then every 2 cycles until Cycle 13, they every 3 cycles through study completion, disease progression or patient discontinuation from the study (whichever comes first), an average of approximately 24 months
At Cycle 3 (each cycle is 28 days) Day 1, then every 2 cycles until Cycle 13, they every 3 cycles through study completion, disease progression or patient discontinuation from the study (whichever comes first), an average of approximately 24 months

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
CStone Pharmaceuticals

Collaborators

Collaborators

An organization other than the sponsor that provides support for a clinical study. This support may include activities related to funding, design, implementation, data analysis, or reporting.
Blueprint Medicines Corporation

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
August 15, 2019

Primary Completion (Actual)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
April 30, 2020

Study Completion (Actual)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
April 11, 2023

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
December 9, 2019

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
February 2, 2020

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
February 5, 2020

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
April 27, 2023

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
April 25, 2023

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
April 1, 2023

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • CS3007-101

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

product manufactured in and exported from the U.S.

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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