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A Phase IB Combination Study of MEK Inhibitor GSK1120212 With Gemcitabine in Subjects With Solid Tumors

Phase 1
18 Years
Not Enrolling
Solid Tumors

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Trial Information

A Phase IB Combination Study of MEK Inhibitor GSK1120212 With Gemcitabine in Subjects With Solid Tumors

Subjects will be enrolled using a dose-escalation procedure in which the initial cohort
receives a fraction of the GSK1120212 dose that achieved a dose limiting toxicity in a
previous study and the recommended dose of gemcitabine. Escalation will proceed until the
maximum tolerated doses are identified. These doses will be selected based on emerging
safety data. Confirmation of the tolerability of the Recommended Phase II Dose (RP2D) will
be explored in approximately 12 subjects. Subjects will continue on treatment until
treatment discontinuation criteria are met (disease progression, intercurrent illness,
adverse event or consent withdrawal).

Inclusion Criteria:

- Capable of giving written informed consent, which includes compliance with the
requirements and restrictions listed in the consent form.

- Age 18 years old or older and able to swallow oral medication.

- Performance Status score of 0 or 1 according to the Eastern Cooperative Oncology
(ECOG) scale.

- Histologically or cytologically confirmed diagnosis of a solid tumor malignancy that
is either relapsed or refractory, or potentially responsive to gemcitabine.

- Tumor Type criteria as listed in protocol.

- Male subjects must agree to use one of the contraception methods listed in protocol.

- A female subject is eligible to participate if she is of non-childbearing potential
as defined in the protocol or postmenopausal as defined in the protocol. If of
child-bearing potential, she agrees to use protocol specified contraceptive methods

- Adequate organ system function as defined below in the protocol.

Exclusion Criteria:

- Chemotherapy, radiotherapy, or immunotherapy within 28 days (or 42 days for prior
nitrosoureas or mitomycin C) prior to the first dose of GSK1120212.

- Use of an investigational anti-cancer drug within 28 days or five half-lives,
whichever is shorter preceding the first dose of GSK1120212 - as long as a minimum of
14 days has passed between the last dose of the prior investigational anti-cancer
drug and the first dose of GSK1120212.

- History of sensitivity to any of the study medications, or components thereof or a
history of drug or other allergy that, in the opinion of the investigator or GSK
Medical Monitor, contraindicates their participation.

- Known immediate or delayed hypersensitivity reaction or idiosyncrasy to drugs
chemically related to the study drug, dimethy sulfoxide (DMSO), or excipients (See

- Use of a prohibited medication (as defined in protocol) or current use of
anticoagulants (e.g. warfarin, heparin, low molecular weight heparin) at therapeutic
levels. Low dose (prophylactic) anticoagulants are permitted provided that subject's
prothrombin time (PT) and partial thromboplastin time (PTT) meet entry criteria.

- Gastrointestinal disease predicted to interfere with absorption of an oral drug.

- History of retinal vein occlusion (RVO) or central serous retinopathy.

- Visible retinal pathology as assessed by ophthalmologic exam that is considered a
risk factor for retinal vein thrombosis.

- Glaucoma diagnosed within one month prior to study day 1.

- Intraocular pressure > 21mm Hg as measured by tonography.

- Symptomatic or untreated leptomeningeal or brain metastases or spinal cord
compression. Subjects previously treated for these conditions that are asymptomatic
and off corticosteroids for at least two months are permitted. Subjects are not
permitted to receive enzyme inducing anti-epileptic drugs (EIAEDs).

- Unresolved toxicity greater than common terminology criteria for adverse events
(CTCAE v4.0) grade 1 from previous anti-cancer therapy.

- History of acute coronary within the past 24 weeks.

- QTc interval greater than or equal to 480 mili seconds (msecs).

- Class II, III, or IV heart failure as defined by the New York Heart Association
(NYHA) functional classification system.

- Pregnant or lactating female.

- History of hepatitis B or C. NOTE: Subjects with evidence of cleared hepatitis B
infection are permitted [Hepatitis B Surface Antigen (HBsAg) negative, anti-HBsAg
positive and anti Hepatitis B core antigen (HBc) positive.]

Type of Study:


Study Design:

Allocation: Non-Randomized, Endpoint Classification: Pharmacokinetics Study, Intervention Model: Single Group Assignment, Masking: Open Label, Primary Purpose: Treatment

Outcome Measure:

Adverse events (AEs) and changes in laboratory values and vital signs.

Outcome Time Frame:

From date of randomization until withdrawal from the study due to disease progression, AE, withdrawal of consent or study closure approximately 6 months after last subject was randomized.

Safety Issue:


Principal Investigator

GSK Clinical Trials

Investigator Role:

Study Director

Investigator Affiliation:



United States: Food and Drug Administration

Study ID:




Start Date:

August 2009

Completion Date:

November 2011

Related Keywords:

  • Solid Tumors
  • Gemcitabine
  • MEK inhibitor
  • GSK1120212
  • Neoplasms



GSK Investigational Site Fort Worth, Texas  76104
GSK Investigational Site Germantown, Tennessee  38138