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Intermittent Duvelisib Dosing in Treating Patients With Chronic Lymphocytic Leukemia or Small Lymphocytic Lymphoma

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Know the risks and potential benefits of clinical studies and talk to your health care provider before participating. Read our disclaimer for details. Identifier: NCT03961672
Recruitment Status : Recruiting
First Posted : May 23, 2019
Last Update Posted : August 16, 2021
National Cancer Institute (NCI)
Information provided by (Responsible Party):
City of Hope Medical Center

Brief Summary:
This phase II trial studies how well duvelisib on an intermittent (irregular) dosing schedule works in treating patients with chronic lymphocytic leukemia or small lymphocytic lymphoma. Duvelisib may stop the growth of cancer cells by blocking some of the enzymes needed for cell growth. Giving duvelisib on an intermittent schedule may result in similar effectiveness with less amount of severe side effects.

Condition or disease Intervention/treatment Phase
Recurrent Chronic Lymphocytic Leukemia Recurrent Small Lymphocytic Lymphoma Refractory Chronic Lymphocytic Leukemia Refractory Small Lymphocytic Lymphoma Drug: Duvelisib Phase 2

Detailed Description:


I. To evaluate the efficacy of duvelisib (induction followed by maintenance [intermittent dosing]) in patients with relapsed or refractory chronic lymphocytic leukemia (CLL), as measured by the progression free survival (PFS).


I. To evaluate safety of duvelisib induction and maintenance (by intermittent dosing) in relapsed/refractory CLL.

II. To evaluate clinical benefits to duvelisib treatment.


I. To evaluate T-cell populations in patients with CLL treated with duvelisib.


INDUCTION: Patients receive duvelisib orally (PO) twice daily (BID) on days 1-28. Cycles repeat every 28 days for 12 weeks in the absence of disease progression or unacceptable toxicity.

MAINTENANCE: Patients receive duvelisib PO BID on days 1-2, 8-9, 15-16, and 22-23. Cycles repeat every 28 days in the absence of disease progression or unacceptable toxicity.

After completion of study treatment, patients are followed up every 3 months for up to 12 months.

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Study Type : Interventional  (Clinical Trial)
Estimated Enrollment : 30 participants
Allocation: N/A
Intervention Model: Single Group Assignment
Masking: None (Open Label)
Primary Purpose: Treatment
Official Title: A Phase II Study of Intermittent Duvelisib Dosing in Patients With Chronic Lymphocytic Leukemia/Small Lymphocytic Lymphoma (CLL/SLL)
Actual Study Start Date : May 13, 2020
Estimated Primary Completion Date : April 27, 2023
Estimated Study Completion Date : April 27, 2023

Arm Intervention/treatment
Experimental: Treatment (duvelisib)

INDUCTION: Patients receive duvelisib PO BID on days 1-28. Cycles repeat every 28 days for 12 weeks in the absence of disease progression or unacceptable toxicity.

MAINTENANCE: Patients receive duvelisib PO BID on days 1-2, 8-9, 15-16, and 22-23. Cycles repeat every 28 days in the absence of disease progression or unacceptable toxicity.

Drug: Duvelisib
Given PO
Other Names:
  • 8-Chloro-2-phenyl-3-((1S)-1-(7H-purin-6-ylamino)ethyl)isoquinolin-1(2H)-one
  • Copiktra
  • INK-1197
  • IPI-145

Primary Outcome Measures :
  1. Proportion of progression free survival (PFS) at 12 months [ Time Frame: First dose of duvelisib until death, time of progression, start of new therapy, or 12 months from start of therapy, whichever occurs first ]
    Proportion of subjects achieving 12 month PFS will be estimated along with a two-sided exact Clopper-Pearson 95% confidence interval.

Secondary Outcome Measures :
  1. Objective response rate (ORR) (including complete response [CR] and partial response [PR]) [ Time Frame: First dose of duvelisib up to 12 months after discontinuation of duvelisib ]
    Probability of having ORR will be measured and reported (if available) with 95% exact confidence interval.

  2. Median PFS [ Time Frame: First dose of duvelisib until death, time of progression, or start of new therapy, whichever occurs first, assessed up to 12 months after discontinuation of duvelisib ]
    Estimated distribution of the PFS will be plotted using Kaplan Meier curves and reported with median PFS and 95% confidence intervals if available.

  3. Duration of response (DOR) [ Time Frame: From time of ORR until death, time of progression, start of new therapy, or end of follow-up, whichever occurs first, assessed up to 12 months after discontinuation of duvelisib ]
    Descriptive statistics of DOR including mean, median, minimum, maximum, standard deviation, and 95% confidence interval will be reported.

  4. Incidence of toxicity [ Time Frame: From first dose of duvelisib until 3 months post-discontinuation of duvelisib ]
    Incidence of having grade 3+ acute toxicity will be determined for participants with chronic lymphocytic leukemia/small lymphocytic lymphoma (CLL/SLL) that received at least one dose of duvelisib. The 95% confidence interval will be reported with the point estimate of toxicity rate.

  5. Duration of therapy [ Time Frame: From first dose of duvelisib until time of duvelisib discontinuation up to 5 years ]
    Estimate the duration of therapy from the first dose of study drug until therapy is discontinued for any reason. The proportion of subjects completing the induction phase will be reported including 95% confidence interval. Proportion who move prematurely to maintenance phase will be reported.

Other Outcome Measures:
  1. Percent distribution of circulating T-cells within duvelisib-treated CLL patients [ Time Frame: From first dose of duvelisib until 3 (end of induction), 6, and 12 cycles of therapy (each cyce is 28 days) ]
    Flow cytometry will be used to assess T-cell repertoire and evaluate changes associated with duvelisib. The distribution of T-cell subtypes distribution will be described by mean, standard deviation, minimal, and maximal values.

Information from the National Library of Medicine

Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the contacts provided below. For general information, Learn About Clinical Studies.

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Ages Eligible for Study:   18 Years and older   (Adult, Older Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • Ability to understand and the willingness to sign a written informed consent document.
  • Histologically or flow cytometry confirmed diagnosis of B-CLL/small lymphocytic lymphoma (SLL) according to National Cancer Institute - Working Group (NCI-WG) 1996 guidelines. Patients who lack CD23 expression on their leukemia cells should be examined for (and found NOT to have) either t(11;14) or cyclin D1 overexpression, to rule out mantle cell lymphoma.
  • Participants have undergone >= 1 prior chemotherapy-based or immunotherapy-based regimen or targeted therapy (e.g., inhibitors of BTK [e.g., ibrutinib], or BCL2 [e.g., venetoclax]) administered for >= 2 cycles (>= 8 weeks for oral therapies), and have had either documented disease progression or no response (i.e., stable disease [SD]) to the most recent treatment regimen.

    • Note: Individuals intolerant to ibrutinib therapy and those who progress on ibrutinib are eligible as long as they satisfy the above criteria.
  • Patients with CLL/SLL must demonstrate active disease meeting at least 1 of the International Workshop on Chronic Lymphocytic Leukemia (IWCLL) 2018 criteria for requiring treatment:

    • A minimum of any one of the following constitutional symptoms:

      • Unintentional weight loss > 10% within the previous 6 months prior to screening.
      • Extreme fatigue (unable to work or perform usual activities).
      • Fevers of greater than 100.5 degrees Fahrenheit (F) for >= 2 weeks without evidence of infection.
      • Night sweats without evidence of infection.
    • Evidence of progressive marrow failure as manifested by the development of, or worsening of anemia or thrombocytopenia.
    • Massive (i.e., > 6 cm below the left costal margin), progressive or symptomatic splenomegaly.
    • Massive nodes or clusters (i.e., > 10 cm in longest diameter) or progressive lymphadenopathy.
    • Progressive lymphocytosis with an increase of > 50% over a 2-month period, or an anticipated doubling time of less than 6 months.
    • Autoimmune anemia or thrombocytopenia that is poorly responsive to corticosteroids.
    • Symptomatic or functional extranodal involvement (eg, skin, kidney, lung, spine)
  • Patients must have Eastern Cooperative Oncology Group (ECOG) performance status =< 2.
  • Direct bilirubin =< 2 x institutional upper limit of normal (ULN); unless due to known Gilbert's syndrome or compensated hemolysis directly attributable to CLL (prior to starting study drug).
  • Aspartate aminotransferase (AST) or alanine aminotransferase (ALT) less than 2.5 x institutional ULN (prior to starting study drug).
  • Estimated creatinine clearance (CrCL) using the Cockcroft-Gault equation (or an alternative equation, per institutional standard) >= 30 mL/min (prior to starting study drug).
  • Platelets >= 30,000/mm^3 independent of transfusion support, with no active bleeding, and absolute neutrophil count (ANC) >= 500/mm^3, unless due to disease involvement in the bone marrow (prior to starting study drug).
  • Participant must be able to swallow tablets or capsules. A participant with any gastrointestinal disease that would impair ability to swallow, retain, or absorb drug is not eligible.
  • Female participants of childbearing potential (defined as a sexually mature woman who has not undergone surgical sterilization or who has not been naturally postmenopausal for at least 12 consecutive months for women > 55 years of age) must have a negative urine or serum pregnancy test within 72 hours prior to receiving the first dose of study medication. If the urine test is positive or cannot be confirmed as negative, a serum pregnancy test will be required.
  • Female participants of childbearing potential must agree to use adequate methods of contraception starting with the first dose of study therapy through 60 days after the last dose of study therapy.

    • Participants of childbearing potential are those who have not been surgically sterilized or have not been free from menses for > 1 year without an alternative medical cause.
  • Male participants must agree to use an adequate method of contraception starting with the first dose of study therapy through 60 days after the last dose of study therapy.

Exclusion Criteria:

  • Prior therapeutic intervention with any of the following:

    • Therapeutic anticancer antibodies within 4 weeks;
    • Radio- or toxin-immunoconjugates within 10 weeks;
    • Inhibitors of Bruton tyrosine kinase (BTK) (e.g., ibrutinib), BH3-mimetic venetoclax, lenalidomide and other "targeted" therapy - within 6 half-lives (i.e., 36 hours for ibrutinib)
    • All other chemotherapy, radiation therapy within 3 weeks prior to initiation of therapy.
    • PI3K inhibitors (idelalisib, copanlisib or any investigational PI3K inhibitor including duvelisib and umbralisib) at any time.
  • Any adverse event related to prior therapy that has not recovered to grade =< 1.
  • Chronic use of corticosteroids in excess of prednisone 30 mg/day or its equivalent.
  • Allogeneic stem cell transplant within the past 12 months, or ongoing immunosuppressive therapy other than prednisone =< 10 mg/day (or equivalent).
  • Use of strong CYP3A4 inhibitors or inducers, in the one week prior to initiating study treatment or concomitant.
  • Unable to receive prophylactic treatment for pneumocystis, herpes simplex virus (HSV), or herpes zoster (varicella zoster virus [VZV]) at screening.
  • History of prior malignancy except:

    • Malignancy treated with curative intent and no known active disease present for >= 2 years prior to initiation of therapy on current study;
    • Adequately treated non-melanoma skin cancer or lentigo maligna (melanoma in situ) without evidence of disease;
    • Adequately treated in situ carcinomas (e.g., breast, cervical, esophageal, etc.) without evidence of disease;
    • Asymptomatic prostate cancer managed with "watch and wait" strategy
  • Uncontrolled immune hemolysis or thrombocytopenia (positive direct antiglobulin test in absence of hemolysis or history of immune-mediated cytopenias are not exclusions).
  • History of human immunodeficiency virus (HIV) infection or active hepatitis B or C.
  • History of chronic liver disease.
  • Major surgery (requiring general anesthesia) within 2 weeks prior to initiation of therapy.
  • Patients with clinically significant medical condition of malabsorption, inflammatory bowel disease, chronic conditions which manifest with diarrhea, refractory nausea, vomiting or any other condition that will interfere significantly with drug absorption.
  • History of stroke, unstable angina, myocardial infarction, or ventricular arrhythmia requiring medication or a pacemaker within the last 6 months prior to screening.
  • Baseline QT interval corrected with Fridericia's method (QTcF) > 500 ms. (NOTE: criterion does not apply to subjects with a right or left bundle branch block BBB).
  • Active uncontrolled infection.
  • Psychiatric illness/social situations that would limit compliance with study requirements.
  • Participant is pregnant or breastfeeding, or expecting to conceive or father children within the projected duration of the trial, starting with the screening visit through 120 days after the last dose of trial treatment.

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its identifier (NCT number): NCT03961672

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United States, California
City of Hope Medical Center Recruiting
Duarte, California, United States, 91010
Contact: Alexey V. Danilov    626-218-2405   
Principal Investigator: Alexey V. Danilov         
United States, Massachusetts
Dana-Farber Cancer Institute Recruiting
Boston, Massachusetts, United States, 02215
Contact: Jennifer R. Brown    617-632-6246   
Principal Investigator: Jennifer R. Brown         
United States, Oregon
OHSU Knight Cancer Institute Recruiting
Portland, Oregon, United States, 97239
Contact: Clinical Trials Information Line    503-494-1080   
Principal Investigator: Stephen Spurgeon         
Sponsors and Collaborators
City of Hope Medical Center
National Cancer Institute (NCI)
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Principal Investigator: Alexey V Danilov City of Hope Comprehensive Cancer Center
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Responsible Party: City of Hope Medical Center Identifier: NCT03961672    
Other Study ID Numbers: 19563
NCI-2019-02789 ( Registry Identifier: CTRP (Clinical Trial Reporting Program) )
19563 (City of Hope)
STUDY00019402 ( Other Identifier: City of Hope Medical Center )
P30CA033572 ( U.S. NIH Grant/Contract )
First Posted: May 23, 2019    Key Record Dates
Last Update Posted: August 16, 2021
Last Verified: August 2021

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Studies a U.S. FDA-regulated Drug Product: Yes
Studies a U.S. FDA-regulated Device Product: No
Product Manufactured in and Exported from the U.S.: No
Additional relevant MeSH terms:
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Leukemia, Lymphoid
Leukemia, Lymphocytic, Chronic, B-Cell
Neoplasms by Histologic Type
Lymphoproliferative Disorders
Lymphatic Diseases
Immunoproliferative Disorders
Immune System Diseases
Leukemia, B-Cell