Maintenance Treatment Versus Observation in Elderly Patients With PCNS Lymphoma
BLOCAGE-01
Phase III Trial Evaluating Maintenance Treatment Versus Observation in Elderly Patients Suffering From Primary Central Nervous System Lymphoma in Complete Remission After High Dose Methotrexate Based Chemotherapy in First Line
2 other identifiers
interventional
428
1 country
1
Brief Summary
Hypothesis Our hypothesis is that maintenance chemotherapy will prolong complete remission obtained after a standard induction chemotherapy with an acceptable toxicity in the elderly. Rationale
- Treatment of the elderly is challenging, indeed age over 60 is associated both with a poor prognosis and a high risk of treatment induced neurotoxicity with devastating consequences on quality of life. Therefore it has become standard practice to treat elderly in first line with high-dose methotrexate (MTX) based polychemotherapy alone, avoiding whole brain radiotherapy (WBRT) or deferring it for recurrence.
- There is a clear need to improve disease control after induction chemotherapy. Since consolidation with WBRT or intensive chemotherapy with autologous stem cell rescue are either poorly effective and/or too toxic in the elderly population, maintenance chemotherapy is an interesting alternative approach. Several agents, such as high-dose MTX, temozolomide (TMZ), rituximab, with a reported activity in PCNSL and acceptable safety profile, as single agent or combined, are good candidates for maintenance
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P50-P75 for phase_3
Started Sep 2015
Longer than P75 for phase_3
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
Click on a node to explore related trials.
Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
December 5, 2014
CompletedFirst Posted
Study publicly available on registry
December 10, 2014
CompletedStudy Start
First participant enrolled
September 1, 2015
CompletedPrimary Completion
Last participant's last visit for primary outcome
April 1, 2023
CompletedStudy Completion
Last participant's last visit for all outcomes
April 1, 2023
CompletedMarch 2, 2022
February 1, 2022
7.6 years
December 5, 2014
February 10, 2022
Conditions
Outcome Measures
Primary Outcomes (1)
progression free survival
6 years
Secondary Outcomes (4)
overall survival
6 years
Toxicity graded according to the NCI-CTCAE
6 years
Cognitive functions evaluated by a standardized and validated test battery exploring 5 cognitive domains
6 years
Quality of life
6 years
Study Arms (2)
maintenance chemotherapy
EXPERIMENTALClinical examination and MRI will be performed every 3 months for 2 years and then every 6 months until tumor progression. Neurocognitive tests will be performed at randomization and annually. Quality of life questionnaires at randomisation and every 3 months
observation
NO INTERVENTIONClinical examination and MRI will be performed every 3 months for 2 years and then every 6 months until tumor progression. Neurocognitive tests will be performed at randomization and annually. Quality of life questionnaires at randomisation and every 3 months
Interventions
Seven monthly R-MT cycles including high dose MTX (3.5g/m2, D1), TMZ, rituximab.
Eligibility Criteria
You may qualify if:
- newly diagnosed primary cerebral lymphoma
- Age ≥60 years
- Pathology proven diagnosis or positive cytology of the CSF or vitreous
- Karnofsky Performance Status ≥40
- No evidence of systemic NHL (body CT scan, bone marrow biopsy)
- Adequate haematological, renal and hepatic function
- Calculated creatinine clearance \> 40 ml/min
- At randomization
- Complete response on MRI after induction chemotherapy according to the IPCG criteria
- Karnofsky Performance Status ≥40
- Adequate haematological, renal and hepatic function
You may not qualify if:
- Positive HIV serology
- Preexisting immunodeficiency (organ transplant recipient)
- Prior treatment for PCNSL
- Isolated primary intra-ocular lymphoma
- Low grade lymphoma
- Any other active primary malignancy
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
Groupe Hospitalier Pitie Salpetriere
Paris, 75013, France
Related Publications (1)
Rozenblum L, Houillier C, Baptiste A, Soussain C, Edeline V, Naggara P, Soret M, Causse-Lemercier V, Willems L, Choquet S, Ursu R, Galanaud D, Belin L, Hoang-Xuan K, Kas A. Interim FDG-PET improves treatment failure prediction in primary central nervous system lymphoma: An LOC network prospective multicentric study. Neuro Oncol. 2024 Jul 5;26(7):1292-1301. doi: 10.1093/neuonc/noae029.
PMID: 38366824DERIVED
MeSH Terms
Interventions
Intervention Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Khe HOANG-XUAN, Md, PhD
Assistance Publique - Hôpitaux de Paris
Study Design
- Study Type
- interventional
- Phase
- phase 3
- Allocation
- RANDOMIZED
- Masking
- NONE
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
December 5, 2014
First Posted
December 10, 2014
Study Start
September 1, 2015
Primary Completion
April 1, 2023
Study Completion
April 1, 2023
Last Updated
March 2, 2022
Record last verified: 2022-02
Data Sharing
- IPD Sharing
- Will not share