Oral Clofarabine for Relapsed/Refractory Non-Hodgkin Lymphoma

March 13, 2023 updated by: Jeremy Abramson, MD, Massachusetts General Hospital

A Phase II Study of Oral Clofarabine in Patients With Relapsed/Refractory Non-Hodgkin Lymphoma

Oral clofarabine is related to two intravenous chemotherapy drugs used for this disease and works in two different ways. It affects the development of new cancer cells by blocking two enzymes that cancer cells need to reproduce. When these enzymes are blocked, the cancer call can no longer prepare the DNA needed to make new cells. Clofarabine also encourages existing cancer cells to die by disturbing components within the cancer cell. This causes the release of a substance that is fatal to the cell.

This trial studies the efficacy of oral clofarabine in the treatment of relapsed non-Hodgkin lymphomas.

Study Overview

Detailed Description

  • Each treatment cycle lasts four weeks during which time the participant will be taking study drug for the first three weeks only. Participants will be supplied with a study medication-dosing calendar for each treatment cycle.
  • Clofarabine is a tablet that will be taken orally in the morning once daily on days 1 through 21 of each 28-day cycle. Participants can receive up to a total of 6 cycles if they do not experience any unacceptable side effects and if their cancer does not get worse.
  • The following tests and procedures will be performed at specified intervals through out the treatment period: blood tests, physical examinations, vital signs, radiological exams and urine tests.

Study Type

Interventional

Enrollment (Actual)

50

Phase

  • Phase 2
  • Phase 1

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

    • Massachusetts
      • Boston, Massachusetts, United States, 02115
        • Dana-Farber Cancer Institute
      • Boston, Massachusetts, United States, 02114
        • Massachusetts General Hospital

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Histologically confirmed relapsed or refractory NHL that includes: follicular lymphoma of any grade; marginal zone lymphoma; small lymphocytic lymphoma/chronic lymphocytic leukemia; mantle cell lymphoma; lymphoplasmacytic lymphoma; low-grade B-cell lymphoma not otherwise specified; diffuse large B-cell lymphoma, anaplastic large cell lymphoma, peripheral T-cell lymphoma, angioimmunoblastic T-cell lymphoma.
  • One or more prior line of chemotherapy, immunotherapy, or radioimmunotherapy.
  • Measurable disease on cross sectional imaging of at least 2cm.
  • ECOG Performance Status 0-2
  • 18 years of age or older
  • Life expectancy of greater than 3 months
  • Normal organ and marrow function as outlined in the protocol
  • Must agree to use adequate contraception prior to study entry and for the duration of study participation

Exclusion Criteria:

  • Patients who have had chemotherapy, rituximab, or radiotherapy within 4 weeks, or radioimmunotherapy within 8 weeks prior to entering the study
  • Receiving any other investigational agent
  • Known brain metastases
  • History of allergic reactions attributed to compounds of similar chemical or biologic composition to Clofarabine
  • Systemic fungal, bacterial, viral, or other infection not controlled
  • Pregnant or lactating
  • Prior history of another malignancy (except for non-melanoma skin cancer or in situ cervical or breast cancer) unless disease free for over one year
  • Uncontrolled intercurrent illness including, but not limited to ongoing or active infection, symptomatic congestive heart failure, unstable angina pectoris, cardiac arrhythmia, or psychiatric illness/social situations that would limit compliance with study requirements
  • Prior allogeneic stem cell transplantation

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: N/A
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Other: Clofarabine
Taken orally once a day (in the AM) on days 1 through 21 of a 28-day cycle for a maximum of 6 cycles.
Taken orally once a day (in the AM) on days 1 through 21 of a 28-day cycle for a maximum of 6 cycles.
Other Names:
  • Clolar

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
All Phase I-II Participants: Overall Response Rate (ORR)
Time Frame: after at most 6 28-day cycles

Determine the efficacy of oral clofarabine (any of the 4 dose levels: 1mg, 2mg, 4mg, and 3mg) in all phase I-II trial patients with relapsed/refractory non-Hodgkin lymphomas.

Per Response Evaluation Criteria In Solid Tumors Criteria (RECIST v1.0) for target lesions and assessed by MRI: Complete Response (CR), Disappearance of all target lesions; Partial Response (PR), >=30% decrease in the sum of the longest diameter of target lesions; Overall Response (OR) = CR + PR.

after at most 6 28-day cycles
Phase I Participants Only: Overall Response Rate (ORR)
Time Frame: after at most 6 28-day cycles

Determine the efficacy of oral clofarabine (any of the 4 dose levels: 1mg, 2mg, 4mg, and 3mg) in all phase I trial patients with relapsed/refractory non-Hodgkin lymphomas.

Per Response Evaluation Criteria In Solid Tumors Criteria (RECIST v1.0) for target lesions and assessed by MRI: Complete Response (CR), Disappearance of all target lesions; Partial Response (PR), >=30% decrease in the sum of the longest diameter of target lesions; Overall Response (OR) = CR + PR.

after at most 6 28-day cycles

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Phase I-II Participants Treated at the RP2D (3mg): Overall Response Rate (ORR)
Time Frame: after at most 6 28-day cycles

To determine the efficacy of oral clofarabine (3mg) in patients with relapsed/refractory non-Hodgkin lymphoma. The 3mg dose was declared the recommended phase 2 dose (RP2D) from phase I.

Per Response Evaluation Criteria In Solid Tumors Criteria (RECIST v1.0) for target lesions and assessed by MRI: Complete Response (CR), Disappearance of all target lesions; Partial Response (PR), >=30% decrease in the sum of the longest diameter of target lesions; Overall Response (OR) = CR + PR.

after at most 6 28-day cycles
All Phase I-II Participants: Progression-free Survival (PFS)
Time Frame: at 1 and 2 years

Determine the progression-free survival rate among all phase I-II trial participants who are treated with any of the 4 dose levels of oral clofarabine (1mg, 2mg, 4mg, or 3mg).

Progression is defined using Response Evaluation Criteria In Solid Tumors Criteria (RECIST v1.0), as a 20% increase in the sum of the longest diameter of target lesions, or a measurable increase in a non-target lesion, or the appearance of new lesions.

at 1 and 2 years
All Phase I-II Participants: Overall Survival (OS)
Time Frame: 3 years
Determine the overall survival rate among all phase I-II trial participants who are treated with any of the 4 dose levels of oral clofarabine (1mg, 2mg, 4mg, or 3mg)
3 years
All Phase I-II Participants: Safety
Time Frame: during 6 28-day cycles and 90 days out
Grade 3-4 toxicities among all phase I-II trial participants who are treated with any of the 4 dose levels of oral clofarabine (1mg, 2mg, 4mg, or 3mg)
during 6 28-day cycles and 90 days out
Phase I Participants Treated at the RP2D (3mg): Overall Response Rate (ORR)
Time Frame: after at most 6 28-day cycles

To determine the efficacy of oral clofarabine (3mg) in patients with relapsed/refractory non-Hodgkin lymphoma. The 3mg dose was declared the recommended phase 2 dose (RP2D) from phase I.

Per Response Evaluation Criteria In Solid Tumors Criteria (RECIST v1.0) for target lesions and assessed by MRI: Complete Response (CR), Disappearance of all target lesions; Partial Response (PR), >=30% decrease in the sum of the longest diameter of target lesions; Overall Response (OR) = CR + PR.

after at most 6 28-day cycles
Phase I Participants: Progression-free Survival (PFS)
Time Frame: at 17 months

Determine the progression-free survival rate among all phase I trial participants who are treated with any of the 4 dose levels of oral clofarabine (1mg, 2mg, 4mg, or 3mg).

Progression is defined using Response Evaluation Criteria In Solid Tumors Criteria (RECIST v1.0), as a 20% increase in the sum of the longest diameter of target lesions, or a measurable increase in a non-target lesion, or the appearance of new lesions.

at 17 months
All Phase I Participants: Overall Survival (OS)
Time Frame: at 17 months
Determine the overall survival rate among all phase I trial participants who are treated with any of the 4 dose levels of oral clofarabine (1mg, 2mg, 4mg, or 3mg)
at 17 months
Phase I Participants: Safety
Time Frame: during 6 28-day cycles and 90 days out
Grade 2-4 toxicities and grade 3-4 infections among all phase I trial participants who are treated with any of the 4 dose levels of oral clofarabine (1mg, 2mg, 4mg, or 3mg)
during 6 28-day cycles and 90 days out

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

June 1, 2008

Primary Completion (Actual)

December 1, 2013

Study Completion (Actual)

July 1, 2021

Study Registration Dates

First Submitted

March 24, 2008

First Submitted That Met QC Criteria

March 24, 2008

First Posted (Estimate)

March 26, 2008

Study Record Updates

Last Update Posted (Actual)

March 15, 2023

Last Update Submitted That Met QC Criteria

March 13, 2023

Last Verified

March 1, 2023

More Information

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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