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Gastrointestinal Stromal TumorsPhase 1/2NCT04254939

A Study of CS3007 in Subjects With Gastrointestinal Stromal Tumor

A Phase 1/2 study testing CS3007 (BLU-285) in people with Gastrointestinal Stromal Tumors, run by CStone Pharmaceuticals at 16 sites in China.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

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). Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Gastrointestinal Stromal Tumors
What is being tested?
CS3007 (BLU-285)
Type of treatment
Pill or oral medicine
Could I receive a placebo?
No, everyone receives an active treatment
How many people
65 participants
Where
16 sitesChina
Study dates
15 Aug 2019to 11 Apr 2023
Phase
Phase 1/2
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • 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.
  • For phase II study:
  • Group 1: Chinese subjects with unresectable GIST harboring D842V mutation in PDGFRα gene.
  • 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.
  • Subjects with at least one measurable lesion as defined per mRECIST v1.1
  • Eastern Cooperative Oncology Group (ECOG) performance status of 0 to 1.

Who cannot join

  • Subject has any of the laboratory results that meet exclusion criteria
  • 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.
  • The subject received neutrophil growth factor support within 14 days prior to the first dose of investigational product.
  • 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.
  • 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.
  • 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.
Show all 14Show fewer
  • Corrected QT interval > 450 msec calculated using Fridericia's formula.
  • Subject has history of seizure (e.g. epilepsy) or requires antiepileptic medication treatment.
  • History of cerebrovascular accident or transient ischemic attack within one year prior to the first dose of the investigational product.
  • Known risk of intracranial hemorrhage, e.g., history of cerebral aneurysm or subdural or subarachnoid hemorrhage.
  • With primary brain malignancy or brain metastasis.
  • 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.
  • Unwilling or unable to comply with scheduled visits, treatment plan, laboratory tests or other study procedures/restrictions.
  • 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.

Trial locations and contacts

16 sites in 1 country.

16 sites in 1 country

China16 sites
  • Beijing Cancer Hospital

    Beijing, Beijing Municipality

  • Chinese PLA General Hospital

    Beijing, Beijing Municipality

  • The First Affiliated Hospital of Chongqing Medical University

    Chongqing, Chongqing Municipality

  • Fujian Medical University Union Hospital

    Fuzhou, Fujian

  • The First Affiliated Hospital of Sun Yat-Sen University

    Guangzhou, Guangdong

  • The Sixth Affiliated Hospital of Sun Yat-Sen University

    Guangzhou, Guangdong

  • The First Affiliated Hospital Zhe Jiang University

    Hangzhou, Zhejiang

  • Harbin Medical University Cancer Hospital

    Harbin, Heilongjiang

  • The First Affiliated Hospital of Nanchang Medical University

    Nanchang, Jiangxi

  • Fudan University Shanghai Cancer Center

    Shanghai, Shanghai Municipality

  • Fudan University Zhongshan Hospital (General Surgery Department)

    Shanghai, Shanghai Municipality

  • Fudan University Zhongshan Hospital (Internal Tumor Department)

    Shanghai, Shanghai Municipality

  • Renji Hospital affiliated to Shanghai Jiaotong University School of Medicine

    Shanghai, Shanghai Municipality

  • Liaoning Cancer Hospital & Institute

    Shenyang, Liaoning

  • Xinjiang Medical University Cancer Hospital

    Ürümqi, Xinjiang

  • Wuhan Union Hospital Tongji Medical College Huazhong University of Science and Technology

    Wuhan, Hubei

Other trials in China

About this study

Official title: 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).

Being tested
CS3007 (BLU-285)
Medical subject headings
Gastrointestinal Stromal Tumors

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • CS3007 (BLU-285)Drug

    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.

Study groups in NCT04254939
Study groupRoleWhat they receive
CS3007(BLU-285)ExperimentalNot described
Receives: Drug: CS3007 (BLU-285)

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. 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

    Measured: 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

  2. Phase II: ORR based on mRESIST 1.1

    Measured: 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

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted5 Feb 2020
  2. Study start15 Aug 2019
  3. Primary completion30 Apr 2020
  4. Study completion11 Apr 2023

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 1/2
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Sequential
Masking
None (open label)
Enrolment
65 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04254939
Sponsor's protocol ID
CS3007-101
Status last verified
Apr 2023
First submitted
9 Dec 2019
Last updated
27 Apr 2023
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No

Publications

  • Li J, Zhang X, Deng Y, Wu X, Zheng Z, Zhou Y, Cai S, Zhang Y, Zhang J, Tao K, Cui Y, Cao H, Shen K, Yu J, Zhou Y, Ren W, Qu C, Zhao W, Hu J, Wang W, Yang J, Shen L. Efficacy and Safety of Avapritinib in Treating Unresectable or Metastatic Gastrointestinal Stromal Tumors: A Phase I/II, Open-Label, Multicenter Study. Oncologist. 2023 Feb 8;28(2):187-e114. doi: 10.1093/oncolo/oyac242.

    PubMed 36477870

Questions about this trial

What is this clinical trial studying?

A Phase 1/2 study testing CS3007 (BLU-285) in people with Gastrointestinal Stromal Tumors, run by CStone Pharmaceuticals at 16 sites in China.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 6 inclusion and 14 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 27 Apr 2023. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 16 sites in China. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this combined phase mean?

Phase 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.

Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

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). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT04254939, which also lists 1 linked publication.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 27 Apr 2023.

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