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New Combination of Chemoimmunotherapy for Systemic B-cell Lymphoma With Central Nervous System Involvement

An International Phase II Trial Assessing Tolerability and Efficacy of Sequential Methotrexate-Aracytin-based Combination and R-ICE Combination, Followed by HD Chemotherapy Supported by ASCT, in Patients With Systemic B-cell Lymphoma With CNS Involvement at Diagnosis or Relapse (MARIETTA Regimen)

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT02329080
Enrollment
79
Registered
2014-12-31
Start date
2014-12-31
Completion date
2024-03-22
Last updated
2025-07-08

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

Conditions

Diffuse Large B-cell Lymphoma

Brief summary

This is an open, non comparative, multicentre phase II trial, to evaluate the efficacy and feasibility of a new sequential combination of HD-MTX-AraC-based chemoimmunotherapy, followed by R-ICE regimen, and by high-dose chemotherapy supported by ASCT.

Detailed description

Treatment includes 6 courses of chemoimmunotherapy, the first three courses with an high dose methotrexate-based combination (MATRIX) followed by other three courses of R-ICE combination and finally a BCNU-thiotepa- containing conditioning and subsequent autologous stem cell transplantation. MATRIX (courses 1, 2, 3): Rituximab 375 mg/m2, Methotrexate 3.5 g/m2, Cytarabine 2 g/m2, Folinic rescue 15 mg/m2, Thiotepa 30 mg/m2, Intrathecal liposomial cytarabine 50 mg, rHuG-CSF 2,5 g/kg s.c. R-ICE (courses 4, 5, 6): Rituximab 375 mg/m2, Etoposide 100 mg/m2/d , Ifosfamide 5 g/m2, Intrathecal liposomial cytarabine 50 mg

Interventions

DRUGMethotrexate

methotrexate 3.5 g/m2 on day 1 courses 1, 2,3 of MATRIX regimen

DRUGRituximab

Rituximab 375 mg/m2 as conventional IV infusion on day 0 courses 1, 2,3 (MATRIX regimen) and on day 1 courses 4,5,6 (R-ICE)

DRUGCytarabine

Cytarabine 2 g/m2 every 12 hours, in 3-hr infusion on days 2,3 courses 1, 2,3 (MATRIX regimen)

DRUGThiotepa

Thiotepa 30 mg/m2 in 30 minutes infusion on day 4 courses 1, 2,3 (MATRIX regimen) and 5 mg/kg in 250 ml of saline sol. in 2-hrs infusion every 12 hours on day -5 and -4 of conditioning and ASCT

DRUGliposomial cytarabine

Intrathecal liposomial cytarabine 50 mg on day 5 courses 1, 2,3 (MATRIX regimen) and on day 4 courses 4,5,6 (R-ICE)

DRUGEtoposide

Etoposide 100 mg/m2/d in 500 mL saline sol. in 30 minutes on day 1-2-3 courses 4,5,6 (R-ICE)

DRUGIfosfamide

Ifosfamide 5 g/m2 in 1.000 mL saline sol. in 24-hour infusion on day 2 courses 4,5,6 (R-ICE)

DRUGCarmustine

BCNU (carmustine) 400 mg/m2 in 500 mL glucose 5% sol. in 1-hr infusion on day-6 of conditioning and ASCT

whole-brain irradiation 36 Gy + tumor- bed boost 10 Gy in patients with residual disease in the parenchymal brain/cerebellum.

Sponsors

International Extranodal Lymphoma Study Group (IELSG)
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to 70 Years
Healthy volunteers
No

Inclusion criteria

1. Histologically confirmed diagnosis of diffuse large B-cell lymphoma 2. CNS involvement (brain, meninges, cranial nerves, eyes and/or spinal cord) at diagnosis (concomitant to extra-CNS disease) or relapse after conventional chemo(-immuno)therapy 3. Diagnosis of CNS involvement either by brain biopsy or CSF cytology examination. Neuroimaging alone is acceptable when stereotactic biopsy is formally contraindicated or when the disease has been previously histologically documented in other areas and the CNS localization is concomitant with a diffuse progression of systemic disease. 4. No previous treatment with high-dose methotrexate-based chemotherapy and/or brain irradiation. One-two courses of R-CHOP combination as upfront therapy are admitted in patients with large amount and/or extensive extra-CNS disease that could condition prognosis in an early phase of treatment. Local investigator decides if initial R-CHOP is needed based on patient's conditions 5. Age 18-70 years 6. ECOG performance status 0-3 7. Adequate bone marrow (Platelets count ≥100.000/mm3, hemoglobin ≥9 g/dL, neutrophils count≥1.500/mm3), renal (creatinine clearance ≥60 mL/min), cardiac (LVEF ≥50%), and hepatic function (total serum bilirubine ≤3 mg/dL, AST/ALT and GGT ≤2.5 per upper normal limit value), unless the abnormality is due to lymphoma infiltration 8. Absence of HIV infection and of detectable HCV-RNA and/or HBsAg and/or HBV-DNA 9. No concurrent malignancies. Previous malignancies are accepted if surgically cured or if there was no evidence of disease in the last 3 years at a regular follow-up 10. Absence of any familial, sociological or geographical condition potentially hampering compliance with the study protocol and follow-up schedule 11. Female patients must be non-pregnant and non-lactating. Sexually active patients of childbearing potential must implement adequate contraceptive measures during study participation 12. No treatment with other experimental drugs within the 6 weeks previous to enrolment 13. Given written informed consent prior to any study specific procedures, with the understanding that the patient has the right to withdraw from the study at any time, without any prejudice. Informed consent signed by a patient's guardian is acceptable if the patient is not able to decide inclusion in the study due to cognitive impairment

Exclusion criteria

1. Other lymphoma categories other than diffuse large B-cell lymphoma. In particular, patients with primary mediastinal lymphoma, intravascular large B-cell lymphoma or leg-type large B-cell lymphoma are excluded. 2. Patients with positive flow cytometry examination of the CSF, but negative results in CSF conventional cytology, and without any other evidence of CNS disease. 3. Patients with exclusive CNS disease at presentation (primary CNS lymphoma) are excluded 4. Previous treatment with support of autologous or allogeneic stem cells/bone marrow transplantation. 5. Symptomatic coronary artery disease, cardiac arrhythmias not well controlled with medication or myocardial infarction within the last 6 months (New York Heart Association Class III or IV heart disease) 6. Any other serious medical condition which could impair the ability of the patient to participate in the trial.

Design outcomes

Primary

MeasureTime frameDescription
1 Year Progression Free Survival (PFS)From study entry until 1 year afterPercentage of patients free from progression after 1 year from study entry

Secondary

MeasureTime frameDescription
2 Years Progression Free Survival (PFS)From study entry until 2 years afterPercentage of patients free from progression after 2 years from study entry
2 Years Overall Survival (OS)From trial entry until 2 years afterPercentage of participants alive after 2 years from study entry

Countries

Czechia, Italy, Netherlands, United Kingdom

Participant flow

Recruitment details

During the recruitment period 79 patients were enrolled and 75 of them were treated. Four patients were excluded after enrolment before the start of study treatment because of unrelated laboratory abnormalities (two patients), disease only at flow cytometry examination of the cerebrospinal fluid (one), and death at the same time as registration (one).

Participants by arm

ArmCount
MATRIX - R-ICE - Conditioning and ASCT
MATRIX (courses 1,2,3): Rituximab 375 mg/m2 d0/Methotrexate 3.5 g/m2 d1/Cytarabine 2 g/m2 d2 & d3/Thiotepa 30 mg/m2 d4/Liposomial Cytarabine 50 mg\* d5 R-ICE (courses 4,5,6):Rituximab 375 mg/m2 d1/Etoposide 100 mg/m2 d1,d2, d3/Ifosfamide 5 g/m2 d2/Carboplatin 5 AUC d2/Liposomial Cytarabine 50 mg\* d4 \*If liposomal cytarabine is not available, standard intrathecal chemotherapy with methotrexate 10 mg + cytarabine 40 mg + hydrocortisone 50 mg can be administered. Oral steroids are suggested for 2-3 days after intrathecal liposomial cytarabine delivery to prevent chemical or aseptic meningitis/ arachnoiditis. Conditioning and ASCT: BCNU (carmustine)\*\* 400 mg/m2 d-6/Thiotepa 5 mg/kg d-5 & d-4 ASCT: 5 x 106 CD34+cells/kg d0 \*\*In case of BCNU unavailability, the recommended conditioning regimen (Phase IV) is: Thiotepa 5 mg/kg d-6 & d-5/Busulfan 3.2 mg/kg d-4,d -3,d-2/Clonazepam 2 mg/d d-4,d -3,d-2 ASCT: 5 x 106 CD34+cells/kg d0
75
Total75

Withdrawals & dropouts

PeriodReasonFG000
Overall StudyAdverse Event1
Overall StudyComplete response4
Overall StudyDeath4
Overall StudyLack of Efficacy22
Overall StudyLost to Follow-up1
Overall StudyPartial response4
Overall StudyPhysician Decision2

Baseline characteristics

CharacteristicMATRIX - R-ICE - Conditioning and ASCT
Advanced stage
Advanced stage
60 Participants
Advanced stage
No advanced stage
15 Participants
Age, Categorical
<=18 years
0 Participants
Age, Categorical
>=65 years
25 Participants
Age, Categorical
Between 18 and 65 years
50 Participants
CNS involvement at presentation
CNS involvement at presentation
32 Participants
CNS involvement at presentation
No CNS involvement at presentation
43 Participants
CNS site of disease - Brain parenchima
Brain parenchima
34 Participants
CNS site of disease - Brain parenchima
No brain parenchima
41 Participants
CNS site of disease - Cerebrospinal fluid or meninges
Cerebrospinal fluid or meninges
8 Participants
CNS site of disease - Cerebrospinal fluid or meninges
No cerebrospinal fluid or meninges
67 Participants
CNS sites of disease - Brain and cerebrospinal fluid or meninges
Brain and cerebrospinal fluid or meninges
13 Participants
CNS sites of disease - Brain and cerebrospinal fluid or meninges
No brain and cerebrospinal fluid or meninges
62 Participants
CNS sites of disease - Brain and eyes
Brain and eyes
10 Participants
CNS sites of disease - Brain and eyes
No Brain and eyes
65 Participants
CNS sites of disease - Brain, cerebrospinal fluid and eyes
Brain, cerebrospinal fluid and eyes
6 Participants
CNS sites of disease - Brain, cerebrospinal fluid and eyes
No brain, cerebrospinal fluid and eyes
69 Participants
CNS sites of disease - Eyes
Eyes
2 Participants
CNS sites of disease - Eyes
No eyes
73 Participants
CNS sites of disease - Spinal cord
No spinal cord
73 Participants
CNS sites of disease - Spinal cord
Spinal cord
2 Participants
Concomitant CNS-systemic localisation
Concomitant CNS-systemic localisation
28 Participants
Concomitant CNS-systemic localisation
No concomitant CNS-systemic localisation
47 Participants
Eastern Cooperative Oncology Group Performance Status (ECOG-PS)
ECOG-PS </= 1
47 Participants
Eastern Cooperative Oncology Group Performance Status (ECOG-PS)
ECOG-PS > 1
28 Participants
HBV or HCV seropositivity
HBV or HCV seropositivity
2 Participants
HBV or HCV seropositivity
No HBV or HCV seropositivity
73 Participants
High LDH serum concentration
High LDH serum concentration
37 Participants
High LDH serum concentration
No high LDH serum concentration
38 Participants
International Prognostic Index (IPI)
High-intermediate IPI risk
26 Participants
International Prognostic Index (IPI)
High IPI risk
17 Participants
International Prognostic Index (IPI)
Low-intermediate IPI risk
18 Participants
International Prognostic Index (IPI)
Low IPI risk
14 Participants
Isolated CNS relapse
Isolated CNS relapse
15 Participants
Isolated CNS relapse
No isolated CNS relapse
60 Participants
Number of extranodal organs involved (other than CNS)
Number of extranodal organs involved </=1
52 Participants
Number of extranodal organs involved (other than CNS)
Number of extranodal organs involved >1
23 Participants
Race and Ethnicity Not Collected— Participants
Region of Enrollment
Italy
52 participants
Region of Enrollment
Netherlands
4 participants
Region of Enrollment
Switzerland
1 participants
Region of Enrollment
United Kingdom
18 participants
Sex: Female, Male
Female
37 Participants
Sex: Female, Male
Male
38 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
50 / 751 / 4
other
Total, other adverse events
72 / 750 / 4
serious
Total, serious adverse events
46 / 750 / 4

Outcome results

Primary

1 Year Progression Free Survival (PFS)

Percentage of patients free from progression after 1 year from study entry

Time frame: From study entry until 1 year after

ArmMeasureValue (NUMBER)
MATRIX - R-ICE - Conditioning and ASCT1 Year Progression Free Survival (PFS)58 Percentage of participants
Secondary

2 Years Overall Survival (OS)

Percentage of participants alive after 2 years from study entry

Time frame: From trial entry until 2 years after

ArmMeasureValue (NUMBER)
MATRIX - R-ICE - Conditioning and ASCT2 Years Overall Survival (OS)46 percentage of participants
Secondary

2 Years Progression Free Survival (PFS)

Percentage of patients free from progression after 2 years from study entry

Time frame: From study entry until 2 years after

ArmMeasureValue (NUMBER)
MATRIX - R-ICE - Conditioning and ASCT2 Years Progression Free Survival (PFS)46 percentage of participants

Source: ClinicalTrials.gov · Data processed: Feb 24, 2026