Skip to content

Leflunomide for the Treatment of Relapsed or Refractory CD30+ Lymphoproliferative Disorders

Pilot Trial of Leflunomide in Patients With CD30+ Lymphoproliferative Disorders

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04463615
Enrollment
1
Registered
2020-07-09
Start date
2021-05-05
Completion date
2021-07-28
Last updated
2023-12-05

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Recurrent Lymphoproliferative Disorder, Refractory Lymphoproliferative Disorder

Brief summary

This trial studies how well leflunomide works for the treatment of patients with CD30+ lymphoproliferative disorders that have come back (relapsed) or do not respond to treatment (refractory). Leflunomide may stop the growth of cancer cells by blocking some of the enzymes needed for cell growth.

Detailed description

PRIMARY OBJECTIVE: I. To evaluate overall response rate of leflunomide treatment. SECONDARY OBJECTIVES: I. To assess complete response rate and duration of response of leflunomide treatment. II. To assess toxicities of leflunomide treatment. III. To assess disease status by the CAILS (composite assessment of index lesion severity). EXPLORATORY OBJECTIVE: I. To generate a preliminary ribonucleic acid (RNA) signature associated with response of CD30+ lymphoproliferative disorders (LYPDs) cells to leflunomide. OUTLINE: Patients receive leflunomide orally (PO) once daily (QD) on days 1-28. Treatment repeats every 28 days for up to 13 cycles in the absence of disease progression or unacceptable toxicity. After completion of study treatment, patients are followed up every 3 months for 12 months.

Interventions

DRUGLeflunomide

Given PO

Sponsors

National Cancer Institute (NCI)
CollaboratorNIH
City of Hope Medical Center
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Documented informed consent of the participant and/or legally authorized representative * Assent, when appropriate, will be obtained per institutional guidelines * Patients must have a life expectancy of \> 3 months * Eastern Cooperative Oncology Group (ECOG) =\< 2 * Patients must have a diagnosis of cutaneous CD30+ LYPD * Patients must be relapsed or are refractory to at least 1 prior line of therapy * At least 2 weeks from prior therapy to time of start of treatment. Prior therapy includes steroids (except prednisone or equivalent - up to 10 mg/day is allowed) * Absolute neutrophil count (ANC) \>= 1000/mm\^3 (within 21 days prior to day 1 of protocol therapy). NOTE: Growth factor is not permitted within 14 days of ANC assessment unless cytopenia is secondary to disease involvement * Platelets \>= 50,000/mm\^3 (within 21 days prior to day 1 of protocol therapy). NOTE: Platelet transfusions are not permitted within 14 days of platelet assessment unless cytopenia is secondary to disease involvement * Total bilirubin =\< 1.5 X upper limit of normal (ULN) (unless has Gilbert's disease) (within 21 days prior to day 1 of protocol therapy) * Aspartate aminotransferase (AST) =\< 2.0 x ULN (within 21 days prior to Day 1 of protocol therapy) * Alanine aminotransferase (ALT) =\< 2.0 x ULN (within 21 days prior to day 1 of protocol therapy) * Creatinine clearance of \>= 30 mL/min per 24 hour urine test or the Cockcroft-Gault formula (within 21 days prior to day 1 of protocol therapy) * Seronegative for human immunodeficiency virus (HIV) antigen (Ag)/antibody (Ab) combo, hepatitis C virus (HCV), active hepatitis B virus (HBV) (surface antigen negative) (within 21 days prior to day 1 of protocol therapy) * If positive, hepatitis C RNA quantitation must be performed * Meets other institutional and federal requirements for infectious disease titer requirements. Note infectious disease testing to be performed within 28 days prior to day 1 of protocol therapy * Negative for tuberculosis antigen (e.g. T-Spot test) * Women of childbearing potential (WOCBP): negative urine or serum pregnancy test (within 21 days prior to day 1 of protocol therapy). If the urine test is positive or cannot be confirmed as negative, a serum pregnancy test will be required * Agreement by females and males of childbearing potential\* to use an effective method of birth control (hormonal or barrier method of birth control or abstinence) or abstain from heterosexual activity for the course of the study through at least three months after the last dose of protocol therapy. The effects of study treatment on a developing fetus have the potential for teratogenic or abortifacient effects. Should a woman become pregnant or suspect that she is pregnant while participating on the trial, she should inform her treating physician immediately * Childbearing potential defined as not being surgically sterilized (men and women) or have not been free from menses for \> 2 years (women only)

Exclusion criteria

* Current or planned use of other investigational agents, or concurrent biological, chemotherapy, or radiation therapy during the study treatment period * Current or planned growth factor or transfusion support. If growth factor or transfusion support is provided between screening and start of treatment, the participant will no longer be eligible * Prior allogeneic transplant * Acute active infection requiring systemic therapy within 2 weeks prior to enrollment * Known history of hepatitis B or hepatitis C infection * Known HIV infection * History of allergic reactions attributed to compounds of similar chemical or biologic composition to leflunomide or cholestyramine * Non-hematologic malignancy within the past 3 years aside from the following exceptions: * Adequately treated basal cell or squamous cell skin cancer * Carcinoma in situ of the cervix * Prostate cancer \< Gleason grade 6 with a stable prostate specific antigen (PSA) * Successfully treated in situ carcinoma of the breast * Clinically significant medical disease or condition that, in the investigator's opinion, may interfere with protocol adherence or the patient's ability to give informed consent * Pregnant women and women who are lactating. Leflunomide has potential for teratogenic or abortifacient effects. Because there is a potential risk for adverse events in nursing infants secondary to treatment of the mother with these agents, breastfeeding should be discontinued if the mother is enrolled on this study * Any other condition that would, in the investigator's judgment, contraindicate the patient's participation in the clinical study due to safety concerns or compliance with clinical study procedures, e.g., infection/inflammation, intestinal obstruction, unable to swallow medication, social/ psychological issues, etc * Prospective participants who, in the opinion of the investigator, may not be able to comply with all study procedures (including compliance issues related to feasibility/logistics)

Design outcomes

Primary

MeasureTime frameDescription
Overall Response RateUp to 42 days from the start time of the initial study treatment. Patient received one 28-day cycle treatment and then was off treatment on Day 14 of the second cycle due to disease progression.Defined as the proportion of patients with a documented response (complete response \[CR\] or partial \[PR\]) any time during study treatment. Response will be categorized by modified severity weighted assessment tool (mSWAT). Will be calculated along with the Clopper Pearson binomial 95% exact confidence intervals. The treatment response was assessed after each 28-day cycle treatment.

Secondary

MeasureTime frameDescription
Complete Response RateUp to 42 days from the start time of the initial study treatment. Patient received one 28-day cycle treatment and was off treatment on Day 14 of the second cycle due to disease progression.Defined as the proportion of patients with a documented CR any time during study treatment. Response will be assessed by mSWAT. Will be calculated along with the Clopper Pearson binomial 95% exact confidence intervals. The treatment response was assessed after each 28-day cycle treatment.

Countries

United States

Participant flow

Participants by arm

ArmCount
Treatment (Leflunomide)
Patients receive leflunomide PO QD on days 1-28. Treatment repeats every 28 days for up to 13 cycles in the absence of disease progression or unacceptable toxicity. Leflunomide: Given PO
1
Total1

Baseline characteristics

CharacteristicTreatment (Leflunomide)
Age, Categorical
<=18 years
0 Participants
Age, Categorical
>=65 years
1 Participants
Age, Categorical
Between 18 and 65 years
0 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
0 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
1 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
Race (NIH/OMB)
Asian
0 Participants
Race (NIH/OMB)
Black or African American
0 Participants
Race (NIH/OMB)
More than one race
0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants
Race (NIH/OMB)
White
1 Participants
Region of Enrollment
United States
1 participants
Sex: Female, Male
Female
1 Participants
Sex: Female, Male
Male
0 Participants

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
0 / 1
other
Total, other adverse events
1 / 1
serious
Total, serious adverse events
0 / 1

Outcome results

Primary

Overall Response Rate

Defined as the proportion of patients with a documented response (complete response \[CR\] or partial \[PR\]) any time during study treatment. Response will be categorized by modified severity weighted assessment tool (mSWAT). Will be calculated along with the Clopper Pearson binomial 95% exact confidence intervals. The treatment response was assessed after each 28-day cycle treatment.

Time frame: Up to 42 days from the start time of the initial study treatment. Patient received one 28-day cycle treatment and then was off treatment on Day 14 of the second cycle due to disease progression.

ArmMeasureValue (NUMBER)
Treatment (Leflunomide)Overall Response Rate0 percentage of participants
Secondary

Complete Response Rate

Defined as the proportion of patients with a documented CR any time during study treatment. Response will be assessed by mSWAT. Will be calculated along with the Clopper Pearson binomial 95% exact confidence intervals. The treatment response was assessed after each 28-day cycle treatment.

Time frame: Up to 42 days from the start time of the initial study treatment. Patient received one 28-day cycle treatment and was off treatment on Day 14 of the second cycle due to disease progression.

ArmMeasureValue (NUMBER)
Treatment (Leflunomide)Complete Response Rate0 percentage of participants

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026