Ruxolitinib for the Treatment of T-Cell Large Granular Lymphocytic Leukemia

Trial statusRecruiting
Trial phasePhase 2
Trial typeInterventional
Biological sexAll
Age18+
SponsorJonathan Brammer

About this trial

This phase II trial tests whether ruxolitinib works to shrink tumors in patients with T-cell large granular lymphocyte leukemia. Ruxolitinib may stop the growth of cancer cells by blocking some of the enzymes needed for cell growth.

Eligibility criteria

Qualifiers

Age 18 or older and able to swallow pills

Diagnosis of T-LGLL defined as: LGL cell population meeting diagnostic criteria (defined as CD3+CD8+ cell population >650/mm3 or CD3+CD8+CD57+ population >500/mm3 or LGL cell population with other immunophenotype that includes co-expression of CD3+, CD8+, CD57+ with >500 cells/mm3 and the presence of a clonal T-cell receptor (within 1 month of diagnosis or relapse). This also includes patients with rare T-LGLL variants include CD4+ T-LGLL, and gamma/delta T-LGLL which can be CD4- and CD8-), though patients still must have the presence of a clonal T-cell receptor within 1 month of diagnosis or relapse. Note: patients with MDS-like T-LGLL may be included with PI approval even if CD3+CD8+ cell population is < 650/mm^3, though +TCR is required. Natural-Killer (NK) LGL is also permitted, provided there is a clonal NK-cell population noted with > 500 cells/mm^3

Untreated T-LGLL or failed at least one line of frontline therapy;

Patients must be off treatment for at least 14 days or 5 half-lives, whichever is longer

Disqualifiers

Absolute neutrophil count (ANC) less than 100/mm^3. Note: granulocyte colony-stimulating factor (G-CSF) may be utilized to enable patients to meet inclusion criteria, as long as the ANC remains above 100/mm^3 for 5 days after administration of last growth-factor.

Active infection requiring ongoing anti-microbial treatment. Patients with human immunodeficiency virus (HIV), positive hepatitis B surface antigen or hepatitis C antibody will be excluded. Patients with tuberculosis risk factors will be required to undergo quantiferon testing and/or purified protein derivative (PPD) testing with a negative result prior to entering the study.

Concurrent immune-suppressive therapy (prednisone or equivalent up to 20 mg permitted to treat LGLL symptoms, but must be weaned within one month of initiation of trial drug). Patients on stable, chronic prednisone =< 10 mg for rheumatologic/autoimmune conditions are exempted from this requirement. They may enroll on the study

Active, concurrent malignancy unless deemed related to T-LGLL by principal investigator (PI). Early stage skin cancers, prostate cancer, permitted if under no active therapy

Trial design

Treatments tested in this trial

  • Ruxolitinib

Treatment groups

30 Participants
are divided into 1 treatment group

Sponsors and collaborators

Jonathan Brammer

Lead sponsor

Ohio State University Comprehensive Cancer Center

Sponsor institution