Clinical trial Recruiting at 21 sites Phase 3 Interventional Ages 65 and up

High-dose chemotherapy with stem cell transplant versus standard treatment for elderly patients with brain lymphoma

Official title: Age-adjusted High-dose Chemotherapy Followed by Autologous Stem Cell Transplantation or Conventional Chemotherapy With R-MP as First-line Treatment in Elderly Primary CNS Lymphoma Patients - a Randomized Phase III Trial

Run by University Hospital Freiburg · NCT06830421 · Data updated 2026-11-12

This study is testing whether a stronger chemotherapy treatment with stem cell transplant can help older patients with brain lymphoma live longer and feel better compared to the usual treatment.

Quick facts

PhasePhase 3
Study typeInterventional
Ages65 Years and up
SexAll
Enrollment340 (estimated)
SponsorUniversity Hospital Freiburg
Academic / other
Drugs / interventionsRituximab, chemotherapy, methotrexate
Locations35 sites (Freiburg im Breisgau, Baden-Wurttemberg and 34 other locations)
StatusRecruiting
StartedAugust 9, 2023
Main results expectedAugust 31, 2029
Study endsAugust 31, 2031
Registry record updatedFebruary 17, 2025
Trial IDNCT06830421 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates are immunocompetent patients aged 65 years or older with newly diagnosed primary DLBCL of the central nervous system.

Probably not a fit

Patients with PCNSL who are not eligible for high-dose chemotherapy or have performance status greater than 2 may not benefit from this study.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This clinical trial compares two treatment approaches for elderly patients diagnosed with primary central nervous system lymphoma (PCNSL). One group will receive the conventional R-MP regimen, which includes rituximab, high-dose methotrexate, and procarbazine, followed by maintenance therapy. The other group will undergo a shorter induction treatment with rituximab, high-dose methotrexate, and cytarabine, followed by high-dose chemotherapy and autologous stem cell transplantation. The goal is to determine if the intensified chemotherapy approach leads to better survival rates and quality of life compared to the standard treatment.

Why it matters

Potential benefit: If successful, this study could significantly improve survival and quality of life for elderly patients with PCNSL.

How similar studies have gone: While similar treatment approaches have shown promise, this specific comparison of intensified chemotherapy versus standard treatment in elderly PCNSL patients is novel and has not been previously published.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

1. Immunocompetent patients with newly-diagnosed primary DLBCL of the central nervous system.
2. Age \> 70 years or age 65-70 years if not eligible for more intensive treatment (e.g. OptiMATe trial).
3. Histologically or cytologically assessed diagnosis of B-cell lymphoma by local pathologist.
4. Diagnostic sample obtained by stereotactic or surgical biopsy, cerebrospinal fluid (CSF) cytology examination or vitrectomy.
5. Disease exclusively located in the CNS.
6. At least 1 measurable lesion.
7. Eastern Cooperative Oncology Group (ECOG)-Performance Status (PS) ≤ 2. ECOG PS \> 2 accepted if due to PCNSL symptoms.
8. Patients possibly eligible for HCT-ASCT as judged by the treating physician.
9. Written informed consent obtained according to international guidelines and local laws by patient or authorized legal representative in case patient is temporarily legally not competent due to his or her disease.

Additional randomization criteria:

1. Patients eligible for HCT-ASCT defined by the EBL score (at most one of the 3 following conditions may apply: ECOG PS \> 1, Barthel Index of activities of daily living (ADL) \< 20 and Lachs geriatric screening \> 3), improvement of PS after pre-phase treatment or clinical judgement by the treating physician after discussion with the study expert team.
2. No evidence of disease progression after pre-phase treatment.

Exclusion Criteria:

1. Congenital or acquired immunodeficiency including HIV infection and previous organ transplantation.
2. Systemic lymphoma manifestation (outside the CNS).
3. Primary vitreoretinal lymphoma or primary leptomeningeal lymphoma without manifestation in the brain parenchyma or spinal cord.
4. Previous or concurrent malignancies with the exception of surgically cured carcinoma in situ or other kinds of cancer without evidence of disease for at least 5 years.
5. Previous systemic Non-Hodgkin lymphoma at any time.
6. Inadequate renal function (creatinine clearance \<60 ml/min).
7. Inadequate bone marrow, cardiac, pulmonary or hepatic function according to investigator´s decision.
8. Active hepatitis B or C disease.
9. Concurrent treatment with other experimental drugs or participation in an interventional clinical trial with administration of study medication within the last thirty days before the start of this study.
10. Third space fluid accumulation \>500 ml.
11. Hypersensitivity to study treatment or any component of the formulation.
12. Taking any medications likely to cause interactions with the study medication.
13. Known or persistent abuse of medication, drugs or alcohol.
14. Active COVID-19-infection or non-compliance with the prevailing hygiene measures regarding the COVID-19 pandemic.
15. Patients without legal capacity and who are unable to understand the nature, significance and consequences of the study and without designated legal representative.
16. Previous participation in this trial.
17. Persons who are in a relationship of dependency/employment to the sponsor and/ or investigator.
18. Any familial, sociological or geographical condition potentially hampering compliance with the study protocol and follow-up schedule.
19. Fertile patients refusing to use safe contraceptive methods during the study.

Where it's running

  • University Hospital Freiburg, Department Medicine I, Hematology, oncology and stem cell transplantation
    Freiburg im Breisgau, Baden-Wurttemberg, Germany
    Recruiting
  • Klinikum Stuttgart, Clinic of Hematology, Oncology and Palliative Care, Stuttgart Cancer Center / Tumor Center Eva Mayr-Stihl
    Stuttgart, Baden-Wurttemberg, Germany
    Recruiting
  • University Hospital Aachen
    Aachen, Germany
    Recruiting
  • University Hospital Augsburg
    Augsburg, Germany
    Recruiting
  • University Hospital Berlin
    Berlin, Germany
    Recruiting
  • Universitätsklinikum Knappschaftskrankenhaus Bochum GmbH
    Bochum, Germany
    Recruiting
Show 29 more locations
  • Städtisches Klinikum Braunschweig gGmbH
    Braunschweig, Germany
    Recruiting
  • Klinikum Bremen-Mitte gGmbH
    Bremen, Germany
    Recruiting
  • Carl Gustav Carus Universitätsklinikum Dresden
    Dresden, Germany
    Recruiting
  • Universitätsklinikum Erlangen
    Erlangen, Germany
    Recruiting
  • Klinikum der Johann-Wolfgang-Goethe-Universität
    Frankfurt, Germany
    Recruiting
  • Universitätsklinikum des Saarlandes Homburg
    Homburg, Germany
    Recruiting
  • Städtisches Klinikum Karlsruhe
    Karlsruhe, Germany
    Recruiting
  • Universitätsklinkum Schleswig-Holstein, Campus Kiel
    Kiel, Germany
    Recruiting
  • Gemeinschaftsklinikum Mittelrhein gGmbH - Koblenz Ev. Stift St. Martin
    Koblenz, Germany
    Recruiting
  • Universitätsklinikum Schleswig-Holstein, Campus Lübeck
    Lübeck, Germany
    Recruiting
  • Universitätsklinikum Münster
    Münster, Germany
    Recruiting
  • Pius-Hospital Oldenburg
    Oldenburg, Germany
    Recruiting
  • Universitätsklinikum Regensburg
    Regensburg, Germany
    Recruiting
  • Universitätsklinikum Ulm
    Ulm, Germany
    Recruiting
  • Schwarzwald-Baar-Klinikum Villingen-Schwenningen
    Villingen-Schwenningen, Germany
    Recruiting
  • Helios Klinikum Berlin-Buch
    Berlin, Germany
    Not yet recruiting
  • Evangelisches Klinikum Bethel
    Bielefeld, Germany
    Not yet recruiting
  • Klinikum Chemnitz gGmbH
    Chemnitz, Germany
    Not yet recruiting
  • Universitätsklinikum Köln
    Cologne, Germany
    Not yet recruiting
  • Universitätsklinikum Düsseldorf
    Düsseldorf, Germany
    Not yet recruiting
  • Universitätsklinikum Essen
    Essen, Germany
    Not yet recruiting
  • Universitätsmedizin Göttingen Georg-August-Universität
    Göttingen, Germany
    Not yet recruiting
  • Universitätsklinikum Halle (Saale)
    Halle, Germany
    Not yet recruiting
  • Universitätsklinikum Leipzig
    Leipzig, Germany
    Not yet recruiting
  • Klinikum rechts der Isar TU München
    München, Germany
    Not yet recruiting
  • Universitätsklinik der Paracelsus Medizinischen Privatuniversität
    Nuremberg, Germany
    Not yet recruiting
  • Klinikum Oldenburg gGmbh
    Oldenburg in Holstein, Germany
    Not yet recruiting
  • Universitätsmedizin Rostock
    Rostock, Germany
    Not yet recruiting
  • Universtitätsklinikum Tübingen
    Tübingen, Germany
    Not yet recruiting

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.