for people ages 18 years and up (full criteria)
study started
completion around
Principal Investigator
by Lee Rosen (ucla)



This is a 2-part Phase 1b study of BGB-283 (lifirafenib) and PD-0325901 (mirdametinib) combination in participants with tumors.

Official Title

A Phase 1b, Open-Label, Dose-escalation and Expansion Study to Investigate the Safety, Pharmacokinetics and Antitumor Activities of a RAF Dimer Inhibitor BGB-283 in Combination With MEK Inhibitor PD-0325901 in Patients With Advanced or Refractory Solid Tumors


Solid Tumor, Adult, Neoplasms, Lifirafenib, mirdametinib, Expansion


You can join if…

Open to people ages 18 years and up

  1. Able to provide informed consent
  2. Age 18 on day of signing informed consent form (ICF) or of the legal age of consent in the jurisdiction in which the study is taking place
  3. Advanced or metastatic, unresectable tumors (other than patients with tumors of the brain or central nervous system) who have experienced disease progression
  4. Must have archival tumor tissue or agree to tumor biopsy
  5. Measurable disease per RECIST 1.1
  6. Eastern Cooperative Oncology Group performance status of less than or equal to 1
  7. Life expectancy is greater than 12 weeks of the signing of ICF.
  8. Adequate organ function and no transfusion within 14 days of first dose.
  9. Females are of non-child bearing potential or willing to use contraception.

    10. Males vasectomized or agree to use contraception.

You CAN'T join if...

  1. Central Nervous System metastasis
  2. Any retinal pathology considered to be a risk factor for central serous retinopathy
  3. History of glaucoma
  4. Active parathyroid disorder or history of malignancy associated hypercalcemia
  5. Clinically significant cardiac disease within the past 6 months of signing ICF.
  6. LVEF less than 50%
  7. Abnormal QT interval at Screening
  8. Severe uncontrolled systemic disease
  9. HIV

    10. Clinically significant active or known history of liver disease. (Hepatitis B and

    Hepatitis C)

    11. Hemorrhage or bleeding event at NCI-CTCAE v5.0 Grade 3 or higher within 28 days of

    first dose.

    12. history of or ongoing Von Willebrand disease and/or other past or present bleeding


    13. Increased serum calcium 14. Inability to swallow oral medications 15. Ongoing radiation therapy or radio-cytotoxic therapy within prior 4 weeks. No

    chemotherapy, immunotherapy, biologic therapy, hormonal, or molecular targeted therapy within prior 2 weeks

    16. Concomitant systemic or glucocorticoid therapy within 2 weeks 17. Major surgical procedure or significant traumatic injury within 4 weeks prior to first

    dose or anticipates need for major surgery while on study

    18. Concomitant medicines that are strong CYP3A inhibitors 19. History of toxicity from another RAF, MEK, ERK inhibitor requiring discontinuation of

    treatment from these drugs

    20. Underlying medical conditions in investigator's opinion to be unfavorable to be a part

    of the study

    21. Has been administered a live vaccine within 4 weeks (28 days) of initiation of study

    treatment. NOTE: injectable seasonal vaccines for influenza and COVID-19 are generally inactivated vaccines and are allowed. Intranasal vaccines are live vaccines and are not allowed.

    NOTE: Other protocol defined Inclusion/Exclusion criteria may apply.


  • University of California Los Angeles accepting new patients
    Santa Monica California 90404 United States
  • MD Anderson accepting new patients
    Houston Texas 77030 United States

Lead Scientist at University of California Health

  • Lee Rosen (ucla)
    HS Clinical Professor, Medicine. Authored (or co-authored) 109 research publications


accepting new patients
Start Date
Completion Date
Phase 1 research study
Study Type
Expecting 105 study participants
Last Updated