Rituximab-Methotrexate-Temozolomide-Thiotepa (RMTT) Regimen As First-line Therapy for PCNS DLBCL

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Rituximab-Methotrexate-Temozolomide-Thiotepa (RMTT) Regimen As First-line Therapy for PCNS DLBCL

Study Purpose

This study aims to observe and explore the efficacy and safety of Rituximab-Methotrexate-Temozolomide-Thiotepa (RMTT) regimen as first-line therapy for primary central nervous system diffuse large B-cell lymphomas(PCNS DLBCL)

Recruitment Criteria

Accepts Healthy Volunteers Healthy volunteers are participants who do not have a disease or condition, or related conditions or symptoms	No
Study Type An interventional clinical study is where participants are assigned to receive one or more interventions (or no intervention) so that researchers can evaluate the effects of the interventions on biomedical or health-related outcomes. An observational clinical study is where participants identified as belonging to study groups are assessed for biomedical or health outcomes. Searching Both is inclusive of interventional and observational studies.	Interventional
Eligible Ages	18 Years - 75 Years
Gender	All

More Inclusion & Exclusion Criteria

Inclusion Criteria:

- Patients voluntarily joined the study, signed the informed consent, and had good compliance; - Patients with 18 Years to 75 Years(at the time of signing the informed consent); Eastern Cooperative Oncology Group Performance Status (ECOG-PS) score: 0-3; - Patients with histopathologically confirmed newly diagnosed primary central nervous system diffuse large B-cell lymphoma, and there were intracranial evaluable lesions (long diameter greater than 1.5cm, short diameter greater than 1cm); - Patients who have not received any systemic therapy, except those who use hormones to control complications.

- Expected survival of more than 3 months.

- Female patients of reproductive age should agree that birth control (such as intrauterine device, birth control pills, or condoms) must be used during the study period and for six months after completion; Having a negative serum pregnancy test within 7 days prior to study enrollment, and must be non-lactating; Male patients should agree to use contraception during the study period and for six months after the end of the study.

Exclusion Criteria:

- Patients who have previously received antitumor therapy or targeted therapy.

- Patients who have undergone major surgery within the past 3 weeks .

- Presence of severe or uncontrolled comorbid conditions including, but not limited to, symptomatic congestive heart failure, uncontrolled hypertension, unstable angina, active peptic ulcer disease, or severe hemorrhagic disorders such as hemophilia A, hemophilia B, von Willebrand disease, or history of spontaneous bleeding requiring transfusion or other medical interventions.

- Any active infection requiring systemic antimicrobial therapy within 14 days before starting study treatment, including, but not limited to, bacterial, fungal, and viral infections.

- Patients who are pregnant or breastfeeding.

- Current participation in other clinical studies, or initiation of study drugs administration less than 4 weeks after completion of previous clinical study treatment.

- Patients with concomitant diseases that, in the investigator's judgment, may seriously endanger patients' safety or may interfere with the completion of the study, or are deemed unsuitable for inclusion for other reasons.

Trial Details

Trial ID: This trial id was obtained from ClinicalTrials.gov, a service of the U.S. National Institutes of Health, providing information on publicly and privately supported clinical studies of human participants with locations in all 50 States and in 196 countries.	NCT06832267
Phase Phase 1: Studies that emphasize safety and how the drug is metabolized and excreted in humans. Phase 2: Studies that gather preliminary data on effectiveness (whether the drug works in people who have a certain disease or condition) and additional safety data. Phase 3: Studies that gather more information about safety and effectiveness by studying different populations and different dosages and by using the drug in combination with other drugs. Phase 4: Studies occurring after FDA has approved a drug for marketing, efficacy, or optimal use.	N/A
Lead Sponsor The sponsor is the organization or person who oversees the clinical study and is responsible for analyzing the study data.	Zhejiang Cancer Hospital
Principal Investigator The person who is responsible for the scientific and technical direction of the entire clinical study.	Haiyan Yang
Principal Investigator Affiliation	Zhejiang Cancer Hospital
Agency Class Category of organization(s) involved as sponsor (and collaborator) supporting the trial.	Other
Overall Status	Recruiting
Countries	China
Conditions The disease, disorder, syndrome, illness, or injury that is being studied.	Primary Central Nervous System Lymphoma

Arms & Interventions

Arms

Experimental: Rituximab-Methotrexate-Temozolomide-Thiotepa (RMTT)

Rituximab: 375 mg/m2 intravenously on day 3,7; Methotrexate: 1.5-3.5 g/m2 intravenously on day 1,14(≤65 ,3.5g/m2；>65,1.5g/m2); Temozolomide 150 mg/m2 on days 3-7； Thiotepa:40 mg/m2 intravenously on day 17。 Treatment will be given for 4 cycles（28 days for each cycle）, and patients who achieve a CR or better can choose to undergo ASCT or WBRT(23.4Gy).

Interventions

Drug: - Rituximab-Methotrexate-Temozolomide-Thiotepa (RMTT)

Contact a Trial Team

If you are interested in learning more about this trial, find the trial site nearest to your location and contact the site coordinator via email or phone. We also strongly recommend that you consult with your healthcare provider about the trials that may interest you and refer to our terms of service below.