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Comparison of Pixantrone + Rituximab With Gemcitabine + Rituximab in Patients With Aggressive B-cell Non-Hodgkin Lymphoma or Follicular Grade 3 Lymphoma Who Have Relapsed After Therapy and Are Not Eligible for Stem Cell Transplant

A Randomized Multicenter Study Comparing Pixantrone + Rituximab With Gemcitabine + Rituximab in Patients With Aggressive B-cell Non-Hodgkin Lymphoma Who Have Relapsed After Therapy With CHOP-R or an Equivalent Regimen and Are Ineligible for Stem Cell Transplant

Status
Completed
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT01321541
Acronym
PIX-R
Enrollment
312
Registered
2011-03-23
Start date
2011-04-20
Completion date
2018-09-14
Last updated
2021-11-19

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

Conditions

de Novo DLBCL, Diffuse Large B-cell Lymphoma, DLBCL Transformed From Indolent Lymphoma, Follicular Grade 3 Lymphoma

Keywords

non-hodgkin lymphoma, DLBCL, relapsed, aggressive NHL, Diffuse large B-cell lymphoma, Rituximab, Rituxan, Pixantrone, NHL, non hodgkin's lymphoma, de novo DLBCL, DLBCL transformed from Indolent Lymphoma, Follicular Grade 3 Lymphoma

Brief summary

The purpose of this study is to evaluate the efficacy of Pixantrone + Rituximab compared to Gemcitabine + Rituximab in patients with relapsed or refractory diffuse large B-cell lymphoma (DLBCL), or follicular grade 3 lymphoma.

Detailed description

Eligible patients will be randomized to treatment with pixantrone plus rituximab or gemcitabine plus rituximab in up to six 28-day cycles. At the time patients experience progressive disease during study treatment, early follow- up, or intermediate follow-up, they enter the survival follow up period. Patients who complete study treatment or discontinue study treatment for any other reason will participate in the follow-up periods. Early Follow-Up: After treatment completion or discontinuation, patient will enter a 24-week follow-up period. Intermediate Follow-Up: After completing the 24-week early follow-up period, patient will enter an additional 72-week follow-up period. Survival Follow-Up: All patients will be monitored for survival.

Interventions

DRUGPixantrone + Rituximab

Pixantrone + Rituximab: Rituximab 375 mg/m2 IV on day 1 and pixantrone 50 mg/m2 (equivalent to 85mg/m2 pixantrone dimaleate)IV on days 1, 8, and 15. Regimen is given in 28-day cycles. Up to 6 cycles may be administered.

DRUGGemcitabine + Rituximab

Gemcitabine + Rituximab: Rituximab 375 mg/m2 IV on day 1 and gemcitabine 1000 mg/m2 IV on days 1, 8, and 15. Regimen is given in 28-day cycles. Up to 6 cycles may be administered.

Sponsors

CTI BioPharma
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
SINGLE (Outcomes Assessor)

Eligibility

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

Inclusion criteria

1. Diagnosis of DLBCL (de novo DLBCL, or transformed from indolent lymphoma) or follicular grade 3 lymphoma on the basis of tissue biopsy. 2. Patients with de novo DLBCL must have received 1-3 treatment regimens for DLBCL. Patients with follicular grade 3 lymphoma must have received 1-3 treatment regimens for follicular lymphoma (any grade). Patients with DLBCL transformed from indolent lymphoma must have received at least 1-4 treatment regimens for NHL. 3. Received rituximab containing a multi-agent therapy for the treatment of NHL. 4. Not eligible for high-dose chemotherapy and stem cell transplant. 5. Patients with DLBCL transformed from indolent lymphoma must have had a complete or partial response to a therapy for NHL lasting at least 12 weeks.

Exclusion criteria

1. Primary refractory de novo DLBCL or primary refractory follicular grade 3 lymphoma, defined as documented progression within 12 weeks of the last cycle of the first-line multi-agent regimen. 2. Prior treatment with cumulative dose of doxorubicin or equivalent exceeding 450 mg/m2 3. Any experimental therapy ≤ 28 days prior to randomization 4. Other malignancy within last 5 years except for the following: curatively treated basal cell/squamous cell skin cancer, carcinoma in situ of the cervix, superficial transitional cell bladder carcinoma, or in situ ductal carcinoma of the breast after complete resection 5. Any contraindication or known allergy or hypersensitivity to any study drugs 6. Concomitant therapy with any anticancer agents, immunosuppressive agents, other investigational anticancer therapies. Low-dose corticosteroids for the treatment of non cancer-related illnesses are permitted.

Design outcomes

Primary

MeasureTime frameDescription
Progression Free Survival (PFS)From the date of randomization to the date of progressive disease or death due to any cause (whichever is first reported) (Up to 100 weeks)PFS is defined as the time of randomization to the date of disease progression or death due to any cause (whichever occurs first)

Secondary

MeasureTime frameDescription
Overall SurvivalFrom date of randomization to the date of the patient's death due to any cause (Up to 100 weeks)Overall survival is from randomization to death due to any cause
Complete Response RateFrom date of randomization to the date of the patient's death due to any cause (Up to 100 weeks)CRR is defined as the proportion of patients who achieve a Complete Response (CR) without additional therapy. CR is defined as the disappearance of all target lesions.
Overall Response RateFrom date of randomization to the date of the patient's death due to any cause (Up to 100 weeks)ORR is defined as the proportion of patients who achieve a CR or PR without additional therapy.
Number of Treatment Emergent Adverse Events (TEAE) Related to Study DrugFrom date of randomization to the date of the patient's death due to any cause (Up to 100 weeks)The number of Participants with Treatment Emergent Adverse Events (TEAE) related to study drug (pixantrone or gemcitabine)

Other

MeasureTime frameDescription
Individual Concentration-time Profiles of Patients Will be Compared to Existing Data Using Simulations (Visual Predictive Checks)within 1 hour of initiation of infusion to 24-48 hours after start of pixantrone infusionTo characterize the PK profile of pixantrone when co-administered with rituximab. Plasma samples for PK analysis will be collected relative to the D-1 dose of pixantrone in one of the 6 treatment cycles for each participating patient. The goal is to enroll approx. 20 patients, active at 20 sites- Beatson West of Scotland Cancer Center, Uni. Hospital Kralovske Vinohrady, Uni. Hospital Hradec Kralove Hematooncology, Hospital Nuernberg, St. Marien Hospital Hamm, Puerta del Mar Hospital, Tokuda Hospital Sofia, National Center of Hematology & Transfusiology, UMHAT SV. IVAN RILSKI, Moritz Kaposi General Hospital, Uni. of Debrecen, Polish Red Cross Marine Hospital, Kharkiv Regional Clinical Oncology Center, National Inst. of Cancer Ukraine, Cherkasy Regional Oncology Center, Inst. of Blood Pathology & Transfusion Medicine, Uni. Hospital Martin, National Onclogy Inst., Uni. Hospital with Outpatient Clinic F.D. Roosevelt Banska Bystrica, Uni. Hospital J.A. Reiman Presov
To Generate Individual Secondary PK Parameters (eg, Exposure, Half-life Etc.) Using Descriptive Statisticswithin 1 hour of initiation of infusion to 24-48 hours after start of pixantrone infusionTo characterize the PK profile of pixantrone when co-administered with rituximab. Plasma samples for PK analysis will be collected relative to the D-1 dose of pixantrone in one of the 6 treatment cycles for each participating patient. The goal is to enroll approx. 20 patients, active at 20 sites- Beatson West of Scotland Cancer Center, Uni. Hospital Kralovske Vinohrady, Uni. Hospital Hradec Kralove Hematooncology, Hospital Nuernberg, St. Marien Hospital Hamm, Puerta del Mar Hospital, Tokuda Hospital Sofia, National Center of Hematology & Transfusiology, UMHAT SV. IVAN RILSKI, Moritz Kaposi General Hospital, Uni. of Debrecen, Polish Red Cross Marine Hospital, Kharkiv Regional Clinical Oncology Center, National Inst. of Cancer Ukraine, Cherkasy Regional Oncology Center, Inst. of Blood Pathology & Transfusion Medicine, Uni. Hospital Martin, National Onclogy Inst., Uni. Hospital with Outpatient Clinic F.D. Roosevelt Banska Bystrica, Uni. Hospital J.A. Reiman Presov

Countries

Austria, Belgium, Bulgaria, Czechia, Denmark, France, Germany, Hungary, Italy, Poland, Romania, Russia, Slovakia, Spain, Ukraine, United Kingdom, United States

Participant flow

Participants by arm

ArmCount
Pixantrone + Rituximab
Pixantrone and Rituximab Pixantrone + Rituximab: Pixantrone + Rituximab: Rituximab 375 mg/m2 IV on day 1 and pixantrone 50 mg/m2 (equivalent to 85mg/m2 pixantrone dimaleate)IV on days 1, 8, and 15. Regimen is given in 28-day cycles. Up to 6 cycles may be administered.
155
Gemcitabine + Rituximab
Gemcitabine and Rituximab Gemcitabine + Rituximab: Gemcitabine + Rituximab: Rituximab 375 mg/m2 IV on day 1 and gemcitabine 1000 mg/m2 IV on days 1, 8, and 15. Regimen is given in 28-day cycles. Up to 6 cycles may be administered.
157
Total312

Baseline characteristics

CharacteristicPixantrone + RituximabGemcitabine + RituximabTotal
Age, Categorical
<=18 years
0 Participants0 Participants0 Participants
Age, Categorical
>=65 years
119 Participants127 Participants246 Participants
Age, Categorical
Between 18 and 65 years
36 Participants30 Participants66 Participants
Ann Arbor Stage
I-III
81 Participants76 Participants157 Participants
Ann Arbor Stage
IV
74 Participants81 Participants155 Participants
IPI Score
IPI Score 0-2
73 Participants73 Participants146 Participants
IPI Score
IPI Score 3 or more
82 Participants84 Participants166 Participants
Number ofprior lines of therapy
0-2
137 Participants139 Participants276 Participants
Number ofprior lines of therapy
3 or more
18 Participants18 Participants36 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Asian
1 Participants1 Participants2 Participants
Race (NIH/OMB)
Black or African American
4 Participants1 Participants5 Participants
Race (NIH/OMB)
More than one race
2 Participants0 Participants2 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
1 Participants0 Participants1 Participants
Race (NIH/OMB)
White
147 Participants155 Participants302 Participants
Sex: Female, Male
Female
86 Participants90 Participants176 Participants
Sex: Female, Male
Male
69 Participants67 Participants136 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
12 / 15316 / 149
other
Total, other adverse events
153 / 153148 / 149
serious
Total, serious adverse events
59 / 15357 / 149

Outcome results

Primary

Progression Free Survival (PFS)

PFS is defined as the time of randomization to the date of disease progression or death due to any cause (whichever occurs first)

Time frame: From the date of randomization to the date of progressive disease or death due to any cause (whichever is first reported) (Up to 100 weeks)

ArmMeasureValue (MEDIAN)
Pixantrone + RituximabProgression Free Survival (PFS)7.3 Months
Gemcitabine + RituximabProgression Free Survival (PFS)6.3 Months
Secondary

Complete Response Rate

CRR is defined as the proportion of patients who achieve a Complete Response (CR) without additional therapy. CR is defined as the disappearance of all target lesions.

Time frame: From date of randomization to the date of the patient's death due to any cause (Up to 100 weeks)

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Pixantrone + RituximabComplete Response Rate55 Participants
Gemcitabine + RituximabComplete Response Rate34 Participants
Secondary

Number of Treatment Emergent Adverse Events (TEAE) Related to Study Drug

The number of Participants with Treatment Emergent Adverse Events (TEAE) related to study drug (pixantrone or gemcitabine)

Time frame: From date of randomization to the date of the patient's death due to any cause (Up to 100 weeks)

Population: Safety Population

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Pixantrone + RituximabNumber of Treatment Emergent Adverse Events (TEAE) Related to Study Drug140 Participants
Gemcitabine + RituximabNumber of Treatment Emergent Adverse Events (TEAE) Related to Study Drug140 Participants
Secondary

Overall Response Rate

ORR is defined as the proportion of patients who achieve a CR or PR without additional therapy.

Time frame: From date of randomization to the date of the patient's death due to any cause (Up to 100 weeks)

ArmMeasureValue (NUMBER)
Pixantrone + RituximabOverall Response Rate61.9 percentage of patients
Gemcitabine + RituximabOverall Response Rate43.9 percentage of patients
Secondary

Overall Survival

Overall survival is from randomization to death due to any cause

Time frame: From date of randomization to the date of the patient's death due to any cause (Up to 100 weeks)

ArmMeasureValue (MEDIAN)
Pixantrone + RituximabOverall Survival13.3 Months
Gemcitabine + RituximabOverall Survival19.6 Months
Other Pre-specified

Individual Concentration-time Profiles of Patients Will be Compared to Existing Data Using Simulations (Visual Predictive Checks)

To characterize the PK profile of pixantrone when co-administered with rituximab. Plasma samples for PK analysis will be collected relative to the D-1 dose of pixantrone in one of the 6 treatment cycles for each participating patient. The goal is to enroll approx. 20 patients, active at 20 sites- Beatson West of Scotland Cancer Center, Uni. Hospital Kralovske Vinohrady, Uni. Hospital Hradec Kralove Hematooncology, Hospital Nuernberg, St. Marien Hospital Hamm, Puerta del Mar Hospital, Tokuda Hospital Sofia, National Center of Hematology & Transfusiology, UMHAT SV. IVAN RILSKI, Moritz Kaposi General Hospital, Uni. of Debrecen, Polish Red Cross Marine Hospital, Kharkiv Regional Clinical Oncology Center, National Inst. of Cancer Ukraine, Cherkasy Regional Oncology Center, Inst. of Blood Pathology & Transfusion Medicine, Uni. Hospital Martin, National Onclogy Inst., Uni. Hospital with Outpatient Clinic F.D. Roosevelt Banska Bystrica, Uni. Hospital J.A. Reiman Presov

Time frame: within 1 hour of initiation of infusion to 24-48 hours after start of pixantrone infusion

Other Pre-specified

To Generate Individual Secondary PK Parameters (eg, Exposure, Half-life Etc.) Using Descriptive Statistics

To characterize the PK profile of pixantrone when co-administered with rituximab. Plasma samples for PK analysis will be collected relative to the D-1 dose of pixantrone in one of the 6 treatment cycles for each participating patient. The goal is to enroll approx. 20 patients, active at 20 sites- Beatson West of Scotland Cancer Center, Uni. Hospital Kralovske Vinohrady, Uni. Hospital Hradec Kralove Hematooncology, Hospital Nuernberg, St. Marien Hospital Hamm, Puerta del Mar Hospital, Tokuda Hospital Sofia, National Center of Hematology & Transfusiology, UMHAT SV. IVAN RILSKI, Moritz Kaposi General Hospital, Uni. of Debrecen, Polish Red Cross Marine Hospital, Kharkiv Regional Clinical Oncology Center, National Inst. of Cancer Ukraine, Cherkasy Regional Oncology Center, Inst. of Blood Pathology & Transfusion Medicine, Uni. Hospital Martin, National Onclogy Inst., Uni. Hospital with Outpatient Clinic F.D. Roosevelt Banska Bystrica, Uni. Hospital J.A. Reiman Presov

Time frame: within 1 hour of initiation of infusion to 24-48 hours after start of pixantrone infusion

Source: ClinicalTrials.gov · Data processed: Mar 2, 2026