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Gastrointestinal Stromal Tumor (GIST)Phase 1/2NCT01991379

MEK162 in Combination With Imatinib Mesylate in Patients With Untreated Advanced Gastrointestinal Stromal Tumor (GIST)

A Phase 1/2 study testing MEK162, Imatinib Mesylate (Gleevec®; STI571; NSC #716051) and Blood draws in people with Gastrointestinal Stromal Tumor (GIST), run by Memorial Sloan Kettering Cancer Center at 1 site in United States.

Active, not recruiting

Under way, not looking for participants. Everyone needed has enrolled. The study is still running.

Official record
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Trial summary

The purpose of this study is to evaluate the effects, good and/or bad, of MEK162 and imatinib on the patient and on Gastrointestinal Stromal Tumor (GIST). Funding Source - FDA OOPD, Array/Pfizer Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Gastrointestinal Stromal Tumor (GIST)
What is being tested?
MEK162, Imatinib Mesylate (Gleevec®; STI571; NSC #716051) and Blood draws
Type of treatment
Surgery or procedure
Could I receive a placebo?
No, everyone receives an active treatment
How many people
75 participants
Where
1 siteUnited States
Study dates
Nov 2013to Nov 2026
Phase
Phase 1/2
Are there results?
Not yet: the study is under way

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

  • Patients must have pathologically confirmed GIST.
  • In the Phase Ib portion, must have locally advanced or metastatic GIST and have progressed on imatinib.
  • In the Phase II portion, patients must be newly diagnosed or treatment naïve, or have been off adjuvant imatinib therapy for at least 3 months. Patients with newly diagnosed GIST and who had been on imatinib for up to 4 weeks prior to signing the consent are allowed to enroll in order to expedite accrual.
  • Patients must be at least 18 years of age.
  • Disease must be measurable by RECIST 1.1.
  • ECOG Performance Status 0 or 1.
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  • Adequate renal, hepatic, and hematologic function as the following: Serum Creatinine ≤ 1.5 mg/dL, Total Serum Bilirubin ≤ 1.5 x upper limit of normal (ULN), Serum AST (SGOT) and/or ALT (SGPT) ≤ 2.5 x ULN (or ≤ 5.0 x ULN if considered due to tumor)ANC ≥ 1500/mm3, Platelets ≥ 100,000/mm3, and hemoglobin ≥ 10g/dL.
  • Patients of childbearing potential must have a negative serum pregnancy test within 14 days of treatment. Patients must agree to use a reliable barrier method of birth control during and for 3 months following the last dose of study drug.
  • Patient must have adequate cardiac function (left ventricular ejection fraction (LVEF) ≥50% as determined by a multigated acquisition (MUGA) scan or echocardiogram; and QTc interval≤480 ms.
  • Patient must be able to take oral medications.
  • Patients must sign an informed consent document.

Who cannot join

  • In the phase II portion of the study, patients that have been previously treated with any systemic therapy for GIST are not permitted to enroll, with the exception of adjuvant imatinib systemic therapy or exposure to imatinib within 4 weeks of signing consent.
  • Patients have a severe and/or uncontrolled medical disease (i.e., uncontrolled diabetes, chronic renal disease, or active uncontrolled infection).
  • Patients have known brain metastasis.
  • Patients have known chronic liver disease (i.e., cirrhosis)
  • Known positive serology for HIV, active Hepatitis B, and/or active Hepatitis C infection.
  • Other active malignancy (other than malignancies, which the investigator determines are unlikely to interfere with treatment and safety analysis).
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  • Patients have a history or current evidence of Central Serous Retinopathy (CSR) or retinal vein occlusion (RVO) or predisposing factors to CSR or RVO (i.e. uncontrolled glaucoma or ocular hypertension, uncontrolled diabetes mellitus, hyperviscosity or hypercoagulability syndromes).
  • History of retinal degenerative disease.
  • History of Gilbert's syndrome.
  • Patients have clinically significant cardiovascular disease, including any of the following:
  • 1) History of acute coronary syndrome including myocardial infarction, unstable angina, CABG, coronary angioplasty or stenting < 6 months prior to screening; 2) symptomatic chronic heart failure (New York Heart Association Criteria, Class II-IV); 3) evidence of clinically significant cardiac arrhythmias and/or conduction abnormalities < 6 months prior to screening except atrial fibrillation (AF) and paroxysmal supraventricular tachycardia (PSVT).
  • Uncontrolled arterial hypertension despite appropriate medical therapy.
  • Patients who have neuromuscular disorders that are associated with elevated creatinine phosphokinase (i.e. inflammatory myopathies, muscular dystrophy, amyotrophic lateral sclerosis, spinal muscular atrophy).
  • Uncontrolled impairment of gastrointestinal function or gastrointestinal disease (e.g., ulcerative disease, uncontrolled nausea, vomiting, diarrhea, malabsorption syndrome). Patients who have ulcerative colitis or other gastrointestinal diseases that are well controlled are allowed to proceed with this study.
  • Prior therapy with a MEK inhibitor.
  • Patients had a major surgery within 3 weeks prior to study entry or who have not recovered from side effects of such procedure.
  • Women who are pregnant or lactating.
  • Sexually active males unless they use a condom during intercourse while taking the drug and for 15 days after stopping treatment and should not father a child in this period. A condom is required to be used also by vasectomized men in order to prevent delivery of the drug via seminal fluid.
  • Patients with any significant history of non-compliance to medical regimens or with inability to grant reliable informed consent.

Trial locations and contacts

1 site in 1 country.

United States1 site

  • Memorial Sloan Kettering Cancer Center

    New York, New York, 10065

Other trials in United States

About this study

Official title: A Phase Ib/II Study of MEK162 in Combination With Imatinib Mesylate in Patients With Untreated Advanced Gastrointestinal Stromal Tumor (GIST)

The purpose of this study is to evaluate the effects, good and/or bad, of MEK162 and imatinib on the patient and on Gastrointestinal Stromal Tumor (GIST).

Funding Source - FDA OOPD, Array/Pfizer

Being tested
MEK162, Imatinib Mesylate (Gleevec®; STI571; NSC #716051), Blood draws, biopsy
Keywords
MEK162, Imatinib, 13-162
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.

  • MEK162Drug

    Patients should take the study drug with a glass of water. MEK162 can be taken with or without food.

  • Imatinib Mesylate (Gleevec®; STI571; NSC #716051)Drug

  • Blood drawsOther

  • biopsyProcedure or surgery

    Following informed consent, the first 20 mandatory patients, except for patients who have already been treated with imatinib prior to consent, and subsequent voluntary patients enrolled on the phase II portion of the trial will undergo research biopsies. Patients should hold both imatinib and MEK162 doses on the day they undergo a biopsy.

Study groups in NCT01991379
Study groupRoleWhat they receive
MEK162 in Combination With Imatinib MesylateExperimentalPts will be treated with the combination therapy of MEK162 \& imatinib. The phase Ib portion of the study, pts will receive imatinib at 400 mg once daily \& MEK162 at the standard 3+3 escalation doses. Phase Ib expansion cohort, pts will receive the RP2D: imatinib 400 mg once daily (standard of care first line imatinib dose) \& MEK162 at the RP2D twice daily. The phase II portion of the study, pts will receive imatinib at 400 mg once daily \& MEK162 at the RP2D. The MEK162 RP2D was originally determined based on the phase Ib escalation data \& it was established as 45 mg BID. After the completion of the phase Ib dose expansion \& initiation of phase II, the MEK162 RP2D was reduced to 30 mg BID30 for better long term tolerability. Patient's will now begin MEK162 at the revised RP2D of 30 mg BID. 1 cycle is 28 days. If no progression of the tumor is seen, pts will continue on therapy. Pts who have progression of disease will proceed directly to second line therapy as per standard of care.
Receives: Drug: MEK162; Drug: Imatinib Mesylate (Gleevec®; STI571; NSC #716051); Other: Blood draws; Procedure: biopsy

What is being measured

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

  1. maximum tolerated dose (MTD) (phase 1b portion)

    The first three patients will be enrolled at Dose Level 1. If dose level 1 is not found to be tolerable, then the next cohort will be enrolled at dose level -1. If dose level -1 is not found to be tolerable, then the study may be terminated based on discussions with the sponsor and the combination may be deemed intolerable. If 0/3 patients or 1/6 patients experience a DLT on dose level 2, this will be the RP2D.

    Measured: 1 year

  2. Best Response Rate (phase II portion)

    Response Rate (CR+PR, RECIST 1.1). Response rate (RECIST 1.1) will be determined as the proportion of evaluable patients who have complete response or partial response defined by the RECIST 1.1.

    Measured: 2 years

Secondary outcomes (4)

  1. Response Rate (RR) (phase 1b portion)

    defined by RECIST 1.1 criteria and by CHOI criteria RR will be estimated as the proportion of patients who have complete response or partial response for each criterion.

    Measured: 1 year

  2. Progression Free Survival (PFS)

    PFS will be calculated using Kaplan-Meier estimate among all patients enrolled. Patients who have not experienced the event of interest by the end of the study will be censored at the time of the last follow-up.

    Measured: 1 year

  3. RR by CHOI criteria (phase II portion)

    It will be determined as the proportion of patients who have complete response or partial response defined by the CHOI criteria with a two-sided 95% CI provided.

    Measured: 1 year

  4. RR by EORTC criteria

    It will be determined as the proportion of patients who have complete response or partial response defined by the EORTC criteria with a two-sided 95% CI provided.

    Measured: 1 year

Timeline

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

  1. First posted25 Nov 2013 (estimated)
  2. Study startNov 2013
  3. Primary completionNov 2026 (estimated)
  4. Study completionNov 2026 (estimated)

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
Single group
Masking
None (open label)
Enrolment
75 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01991379
Sponsor's protocol ID
13-162
Status last verified
Dec 2025
First submitted
18 Nov 2013
Last updated
4 Dec 2025
Results posted
No

Publications

  • Chi P, Qin LX, Nguyen B, Kelly CM, D'Angelo SP, Dickson MA, Gounder MM, Keohan ML, Movva S, Nacev BA, Rosenbaum E, Thornton KA, Crago AM, Yoon S, Ulaner G, Yeh R, Martindale M, Phelan HT, Biniakewitz MD, Warda S, Lee CJ, Berger MF, Schultz ND, Singer S, Hwang S, Chen Y, Antonescu CR, Tap WD. Phase II Trial of Imatinib Plus Binimetinib in Patients With Treatment-Naive Advanced Gastrointestinal Stromal Tumor. J Clin Oncol. 2022 Mar 20;40(9):997-1008. doi: 10.1200/JCO.21.02029. Epub 2022 Jan 18.

    PubMed 35041493

Questions about this trial

What is this clinical trial studying?

A Phase 1/2 study testing MEK162, Imatinib Mesylate (Gleevec®; STI571; NSC #716051) and Blood draws in people with Gastrointestinal Stromal Tumor (GIST), run by Memorial Sloan Kettering Cancer Center at 1 site in United States.

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 11 inclusion and 19 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: under way, not looking for participants, as of the sponsor's last update on 4 Dec 2025. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United States. 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?

This study is still under way. Results are not available in the source record yet.

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?

maximum tolerated dose (MTD) (phase 1b portion) (time frame: 1 year). 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 NCT01991379, 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 4 Dec 2025.

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