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T-Cell Large Granular Lymphocyte LeukemiaPhase 2NCT05592015

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

A Phase 2 study testing Ruxolitinib in people with T-Cell Large Granular Lymphocyte Leukemia, run by Jonathan Brammer at 3 sites in United States.

Recruiting

Looking for participants now. Contact the study team or a site below to ask about taking part.

Sites and contacts
Official record
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Trial summary

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. Read more about this study

Who is it for?
Ages 18 years and older
What is being tested?
Ruxolitinib
Type of treatment
Pill or oral medicine
Could I receive a placebo?
No, everyone receives an active treatment
How many people
30 participants
Where
3 sitesUnited States
Study dates
3 May 2023to 31 Jul 2027
Phase
Phase 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

  • 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
  • Require Treatment for T-LGLL (one or more required)
  • Symptomatic anemia with hemoglobin < 10 g/dL
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  • Transfusion-dependent anemia
  • Neutropenia with absolute neutrophil count (ANC) < 500/mm^3
  • Neutropenia with ANC < 1500/mm^3 with recurrent infections
  • Platelet count > 50 x 10^9/L. Platelet transfusion may be utilized to meet inclusion criteria, as long as the platelet count remains >50,000/uL within 5 days of last transfusion. Note: Patients with platelets <100 x 109/L and renal impairment are not permitted to enroll to the study. Renal impairment is defined as creatinine clearance (CrCl) < 90 mL/min.
  • Serum creatinine =< 2 x the upper limit of normal (ULN)
  • - Estimated glomerular filtration rate (eGFR) => 30 mL/min using the Modification of Diet in Renal Disease (MDRD) equation (multiplying eGFR by each subjects Body Surface Area [BSA])
  • Total bilirubin =< 1.5 x ULN (patients with Gilbert's syndrome with a bilirubin > 1.5 x ULN permitted)
  • Aspartate aminotransferase (AST) and alanine aminotransferase (ALT) =< 2.5 x ULN
  • Alkaline phosphatase (ALP) =< 2.5 x ULN
  • Eastern cooperative oncology group (ECOG) performance status =< 2
  • Men and women of reproductive potential must agree to follow accepted birth control methods for the duration of the study. Female subject is either post-menopausal or surgically sterilized or willing to use an acceptable method of birth control (i.e., a hormonal contraceptive, intra-uterine device, diaphragm with spermicide, condom with spermicide, or abstinence) for the duration of the study treatment until 5 half-lives have passed. Male subject agrees to use an acceptable method for contraception for the duration of the study treatment until 5 half-lives have passed.
  • Able to sign informed consent

Who cannot join

  • 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
  • For females of childbearing potential: Positive pregnancy test or lactating
  • Unstable angina or myocardial infarction within the past 2 months
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  • Chronic obstructive pulmonary disease or other interstitial lung disease in active exacerbation
  • Cirrhosis
  • For any strong CYP3A4 inhibitors deemed a moderate or severe risk of interaction with ruxolitinib, a wash-out period of 14 days, or 5 half-lives, whichever is longer, is needed prior to starting ruxolitinib
  • Given the CYP3A4 inhibition potential of grapefruit, grapefruit juice, Seville orange juice, pomelos, and starfruits, patients will need to refrain from these foods/drinks for 14 days prior to initiation of therapy, and throughout the study period

Trial locations and contacts

3 sites in 1 country. Contact the study team or a site near you to ask about taking part.

The Ohio State University Comprehensive Cancer Center contact

800-293-5066

OSUCCCClinicaltrials@osumc.edu

United States3 sites, 3 recruiting
  • Dana-Farber Cancer Institute

    Boston, Massachusetts, 02215

    Eric Jacobsen, MD, 617-632-6633, eric_jacobsen@dfci.harvard.edu

    Jillian Foreman, 617-582-8713, jillianm_foreman@dfci.harvard.edu

    Recruiting
  • Ohio State University Comprehensive Cancer Center

    Columbus, Ohio, 43210

    Jonathan Brammer, MD, 614-366-6963, Jonathan.Brammer@osumc.edu

    Jonathan Brammer, MD

    Recruiting
  • Memorial Sloan Kettering Cancer Center

    New York, New York, 10065

    Alison Moskowitz, MD, 646-608-3726, moskowia@mskcc.org

    Alison Moskowitz, MD

    Recruiting

Other trials in United States

About this study

Official title: A Phase II Study Evaluating the Efficacy of Ruxolitinib in Patients With T-Cell Large Granular Lymphocytic Leukemia (T-LGLL)

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.

Read the detailed description

PRIMARY OBJECTIVE:

  1. Determine the overall response rate (ORR) of ruxolitinib in patients with T-cell large granular lymphocytic leukemia (T-LGLL) as compared to historical controls.

SECONDARY OBJECTIVES:

  1. Rate of conversion from PR at 4 months to CR at 8 and 12 months (at full ruxolitinib dosage).

II. Rate of molecular remission (T-cell receptor [TCR] clearance, STAT3 mutation clearance) at 4, 8, 12 months.

III. Incidence of grade III/IV toxicities (at full ruxolitinib dosage). IV. Quality of life using the European Organization for Research and Treatment of Cancer Quality of Life Questionnaire-Core 30 (EORTC QLQ-C30), Health Assessment Questionnaire Disability Index (HAQDi), and Short Form (SF)-36 questionnaire at baseline, 5 months, and every 6 months during response follow up for up to 12 months.

EXPLORATORY OBJECTIVE:

  1. Objective benefit (OB) rate at 4 months defined as a patient that had improvement in their cytopenias, transfusion dependence but not attaining a partial response (PR).

II. Leukemia-free survival III. Progression-free survival

OUTLINE:

Patients receive ruxolitinib orally (PO) twice daily (BID) on days 1-28. Cycles repeat every 28 days for 12 months in the absence of disease progression or unacceptable toxicity. Patients who achieve a response (CR or PR) may receive an additional 12 months of ruxolitinib, for a maximum of 24 months. Additionally, patients undergo blood sample collection throughout study.

Being tested
Ruxolitinib
Medical subject headings
Leukemia, Large Granular Lymphocytic

What participants receive

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

  • RuxolitinibDrug

    Also called INCB-18424, INCB18424, Jakafi, Oral JAK Inhibitor INCB18424

    Given PO

Study groups in NCT05592015
Study groupRoleWhat they receive
Treatment (ruxolitinib)ExperimentalPatients receive ruxolitinib PO BID on days 1-28. Cycles repeat every 28 days for 12 months in the absence of disease progression or unacceptable toxicity. Patients who achieve a response (CR or PR) may receive an additional 12 months of ruxolitinib, for a maximum of 24 months.
Receives: Drug: Ruxolitinib

What is being measured

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

  1. Overall response rate (ORR)

    The ORR will be calculated as the proportion of patients who achieve a response to therapy divided by the total number of evaluable patients. An evaluable patient is defined as an eligible patient who has received at least four months of therapy with ruxolitinib. All evaluable patients will be included in calculating the ORR for the study along with corresponding 95% binomial confidence intervals (CIs) (assuming that the number of patients who respond is binomially distributed). Additional outcomes including rates of conversion from PR at 4 months to CR at 8 and 12 months on full dose ruxolitinib, and rate of molecular remission (TCR clearance, STAT3 mutation clearance) at 4, 8, 12 months on full dose ruxolitinib will also be reported as proportions with 95% binomial CIs.

    Measured: Up to 12 months

Secondary outcomes (6)
  1. Incidence of treatment-emergent adverse events

    Treatment-emergent adverse events will be reported overall and by toxicity grade.

    Measured: Up to 12 months

  2. Leukemia-free survival (LFS)

    Kaplan Meier curves will be generated and the median LFS and 95% CIs will be reported.

    Measured: From first response until disease progression, death, or censoring (if alive and disease-free at the end of follow-up), assessed up to 12 months

  3. Patient quality-of-life (QOL) EORTC

    Will be assessed via responses to the European Organization for Research and Treatment of Cancer (EORTC) Quality of Life Questionnaire at baseline, 5 months, and 1 year on study. Changes in QOL will be calculated from the differences in scores between baseline and 5 months, baseline and 1 year, and 5 months and 1 year, for each patient. The proportions of patients who had improvement in QOL scores between time points will be compared between responding patients and non-responding patients, patients with and without rheumatologic disease, and between patients classified as having an objective benefit and patients who did not have an objective benefit. Mean changes in patient QOL between time points will also be reported.

    Measured: Up to 12 months

  4. Patient quality-of-life (QOL) QLQ-C30

    Will be assessed via responses to the European Organization for Research and Treatment of Cancer (EORTC) Quality of Life Questionnaire-Core 30 given at baseline, 5 months, and 1 year on study. Changes in QOL will be calculated from the differences in scores between baseline and 5 months, baseline and 1 year, and 5 months and 1 year, for each patient. The proportions of patients who had improvement in QOL scores between time points will be compared between responding patients and non-responding patients, patients with and without rheumatologic disease, and between patients classified as having an objective benefit and patients who did not have an objective benefit. Mean changes in patient QOL between time points will also be reported.

    Measured: Up to 12 months

  5. Patient quality-of-life (QOL) HAQDi

    Will be assessed via responses to the European Organization for Research and Treatment of Cancer (EORTC) Quality of Life Questionnaire-Health Assessment Questionnaire-Disability Index questionnaires given at baseline, 5 months, and 1 year on study. Changes in QOL will be calculated from the differences in scores between baseline and 5 months, baseline and 1 year, and 5 months and 1 year, for each patient. The proportions of patients who had improvement in QOL scores between time points will be compared between responding patients and non-responding patients, patients with and without rheumatologic disease, and between patients classified as having an objective benefit and patients who did not have an objective benefit. Mean changes in patient QOL between time points will also be reported.

    Measured: Up to 12 months

  6. Patient quality-of-life (QOL) SF-36

    Will be assessed via responses to the European Organization for Research and Treatment of Cancer (EORTC) Quality of Life Questionnaire-Short Form-36 given at baseline, 5 months, and 1 year on study. Changes in QOL will be calculated from the differences in scores between baseline and 5 months, baseline and 1 year, and 5 months and 1 year, for each patient. The proportions of patients who had improvement in QOL scores between time points will be compared between responding patients and non-responding patients, patients with and without rheumatologic disease, and between patients classified as having an objective benefit and patients who did not have an objective benefit. Mean changes in patient QOL between time points will also be reported.

    Measured: Up to 12 months

Timeline

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

  1. First posted24 Oct 2022
  2. Study start3 May 2023
  3. Primary completion31 Jul 2027 (estimated)
  4. Study completion31 Jul 2027 (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 2
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
30 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT05592015
Sponsor's protocol ID
OSU-21336
Other IDs
NCI-2022-02385
Status last verified
Feb 2026
First submitted
18 Apr 2022
Last updated
1 Oct 2026
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
Yes
FDA-regulated device
No
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing Ruxolitinib in people with T-Cell Large Granular Lymphocyte Leukemia, run by Jonathan Brammer at 3 sites 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 18 inclusion and 10 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: looking for participants now, as of the sponsor's last update on 1 Oct 2026. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 3 sites 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 phase mean?

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?

Contact The Ohio State University Comprehensive Cancer Center (800-293-5066, OSUCCCClinicaltrials@osumc.edu), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Overall response rate (ORR) (time frame: Up to 12 months). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
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 1 Oct 2026.

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