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Treating Patients With Recurrent PCNSL With Carboplatin/BBBD and Adding Rituxan To The Treatment Regimen

A Phase II Trial Involving Patients With Recurrent PCNSL Treated With Carboplatin/BBBD, by Adding Rituxan (Rituximab), An Anti CD-20 Antibody, To The Treatment Regimen

Status
Terminated
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00074165
Enrollment
17
Registered
2003-12-11
Start date
2003-01-31
Completion date
2010-12-31
Last updated
2023-07-06

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

Conditions

Brain and Central Nervous System Tumors, Drug/Agent Toxicity by Tissue/Organ, Lymphoma, Thrombocytopenia

Keywords

drug/agent toxicity by tissue/organ, thrombocytopenia, intraocular lymphoma, primary central nervous system non-Hodgkin lymphoma, primary central nervous system Hodgkin lymphoma

Brief summary

RATIONALE: Monoclonal antibodies, such as rituximab, can locate cancer cells and either kill them or deliver cancer-killing substances to them without harming normal cells. Drugs used in chemotherapy, such as carboplatin, cyclophosphamide, etoposide, etoposide phosphate, and cytarabine, use different ways to stop cancer cells from dividing so they stop growing or die. Osmotic blood-brain barrier disruption uses certain drugs to open the blood vessels around the brain and allow anticancer substances to be delivered directly to the brain tumor. Chemoprotective drugs such as sodium thiosulfate may protect normal cells from the side effects of carboplatin-based chemotherapy. Combining rituximab with chemotherapy given with osmotic blood-brain barrier disruption plus sodium thiosulfate may kill more cancer cells. PURPOSE: Phase II trial to study the effectiveness of combining rituximab with combination chemotherapy given with osmotic blood-brain barrier disruption plus sodium thiosulfate in treating patients who have refractory or recurrent primary CNS lymphoma.

Detailed description

OBJECTIVES: Primary * Determine the efficacy of rituximab, carboplatin, cyclophosphamide, etoposide or etoposide phosphate and cytarabine administered in conjunction with osmotic blood-brain barrier disruption and high-dose sodium thiosulfate, in terms of complete response rate, in patients with refractory or recurrent primary CNS lymphoma. Secondary * Determine the overall survival and 2-year progression-free survival of patients treated with this regimen. * Determine the quality of life and cognitive function of patients treated with this regimen. * Determine the neurotoxicity of this regimen in these patients. * Determine the percentage of patients with ototoxicity over time after treatment with this regimen. * Determine the effect of delayed administration of sodium thiosulfate on granulocyte and erythrocyte counts in these patients. OUTLINE: This is a multicenter study. Patients receive rituximab IV on day 1. On days 2 and 3, patients receive carboplatin intra-arterially over 10 minutes, cyclophosphamide IV over 10 minutes, and etoposide or etoposide phosphate IV over 10 minutes in conjunction with blood-brain barrier disruption. Patients also receive high-dose sodium thiosulfate IV over 15 minutes administered 4 and 8 hours after carboplatin on days 2 and 3 and intraventricular or intrathecal cytarabine on day 14. Beginning 48 hours after the last dose of chemotherapy, patients receive filgrastim (G-CSF)\* subcutaneously (SC) daily for 7-10 days or until blood counts recover. Treatment repeats every 4 weeks for up to 12 courses. NOTE: \* Alternatively, patients may receive a single dose of pegfilgrastim SC, administered 48 hours after the completion of chemotherapy Patients with intraocular lymphoma also receive methotrexate intravitreally twice weekly until the vitreous is clear of cells by slit lamp exam; once weekly for 1 month; and then monthly for 1 year. Quality of life is assessed at baseline, every 3 months during treatment, within 30 days of final treatment, then every 6 months for 1 year, and then annually thereafter. Patients are followed monthly for 3 months, every 2 months for 8 months, every 3 months for 1 year, and then every 6 months thereafter. PROJECTED ACCRUAL: A total of 11-25 patients will be accrued for this study within 7-10 years.

Interventions

DRUGRituxan

Total dose: 375mg/m2 infused IV; Every 4 weeks for up to one year.

DRUGCyclophosphamide

Dose 330mg/m2 x 2 days infused IV; Every 4 weeks for up to 1 year

DRUGEtoposide

Dose 200mg/m2 x 2 days infused IV; Every 4 weeks for up to one year. Etoposide phosphate may be given instead.

DRUGEtoposide phosphate

Dose 200mg/m2 infused IV x 2 days; Every 4 weeks for up to one year. Etoposide may be given instead.

DRUGCarboplatin

Dose: 200mg/m2 x 2 days infused IA with BBBD; Every 4 weeks for up to one year.

DRUGSodium thiosulfate

Dose: 4 hrs post carboplatin = 20gm/m2; Dose: 8 hrs post carboplatin = 16gm/m2 Infused IV x 2 days

48 hours after chemotherapy, QD x 7-10 days until WBC greater than 5000. Neulasta (Pegfilgrastim) may be given instead.

Dose: 6mg, 24-72 hours after chemotherapy. Neupogen may be given instead.

DRUGCytarabine

Dose: 40mg on Day 14 following chemotherapy

Sponsors

National Cancer Institute (NCI)
CollaboratorNIH
OHSU Knight Cancer Institute
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Months to 75 Years
Healthy volunteers
No

Inclusion criteria

* Signed informed consent form in accordance with institutional guidelines * Histologically or cytologically confirmed primary CNS lymphoma documented by brain biopsy or cerebrospinal fluid or vitrectomy analysis * CD20 positive disease * Progressive or relapsed disease during or after completion of prior methotrexate-based chemotherapy * Aged 18 months to 75 years * Performance status ECOG 0-3 OR Karnofsky 30-100% * Hematocrit at least 25% (transfusion or epoetin alfa allowed) * Absolute granulocyte count at least 1,200/mm\^3 * Platelet count at least 100,000/mm\^3 OR at least lower limit of normal * Bilirubin no greater than 2.0 times upper limit of normal * Creatinine less than 1.8 mg/dL * Calculated Creatinine clearance (CrCl) at least 50 mL/min * Adequate cardiac function to tolerate general anesthesia * Adequate pulmonary function to tolerate general anesthesia * Available for follow-up for 1 year post therapy * Fertile patients must use effective contraception for a minimum of 2 months before and during study participation

Exclusion criteria

* Radiographic signs of intra-cranial herniation and/or spinal block * HIV positive * Systemic lymphoma * Positive serum HCG, pregnant or lactating * Allergy to study agents * Hepatitis B or hepatitis C positive

Design outcomes

Primary

MeasureTime frameDescription
Number of Participants With a Complete Response Rate to Chemotherapy Regimen Assessed by Radiographic Response at 2 Years.2 yearsPer RECIST criteria (v1.1) and assessed by magnetic resonance imaging (MRI): Complete response (CR), Disappearance of all target lesions.

Secondary

MeasureTime frameDescription
Number of Participants With Overall Survival Assessed by Clinical and Radiographic Response5 yearsOverall survival is measured from entry onto study until death from any cause or until death or progression of disease, respectively.
Progression-free Survival Assessed by Clinical and Radiographic Response From First Day of Treatment Until Tumor Progression5 years
Quality of Life Assessed by EORTC QOL Before Treatment and Then Every 3 Months5 years
Ototoxicity Assessed by Audiology Hearing Test Done Monthly During Treatment2 years
Effect of Sodium Thiosulfate (STS) on Granulocytes and Erythrocytes Assessed by Complete Blood Count Lab Values Done Weekly During Treatment2 years

Countries

United States

Participant flow

Participants by arm

ArmCount
Rituximab and Carboplatin
Rituximab: (i.v.) 375 mg/m\^2 given the evening before blood brain barrier disruption(BBBD) procedure day 1 Carboplatin: (i.a.) 200 mg/m\^2 /day x 2 days = 400 mg/m\^2
17
Total17

Baseline characteristics

CharacteristicRituximab and Carboplatin
Age, Categorical
<=18 years
0 Participants
Age, Categorical
>=65 years
5 Participants
Age, Categorical
Between 18 and 65 years
12 Participants
Age, Continuous55.235 years
STANDARD_DEVIATION 12.799
Region of Enrollment
United States
17 participants
Sex: Female, Male
Female
8 Participants
Sex: Female, Male
Male
9 Participants

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
0 / 17
other
Total, other adverse events
1 / 17
serious
Total, serious adverse events
16 / 17

Outcome results

Primary

Number of Participants With a Complete Response Rate to Chemotherapy Regimen Assessed by Radiographic Response at 2 Years.

Per RECIST criteria (v1.1) and assessed by magnetic resonance imaging (MRI): Complete response (CR), Disappearance of all target lesions.

Time frame: 2 years

ArmMeasureValue (NUMBER)
Rituximab and CarboplatinNumber of Participants With a Complete Response Rate to Chemotherapy Regimen Assessed by Radiographic Response at 2 Years.1 Participants
Secondary

Effect of Sodium Thiosulfate (STS) on Granulocytes and Erythrocytes Assessed by Complete Blood Count Lab Values Done Weekly During Treatment

Time frame: 2 years

Population: Data not collected due to low accrual and early termination.

Secondary

Number of Participants With Overall Survival Assessed by Clinical and Radiographic Response

Overall survival is measured from entry onto study until death from any cause or until death or progression of disease, respectively.

Time frame: 5 years

Population: Data not collected due to low accrual and early termination.

Secondary

Ototoxicity Assessed by Audiology Hearing Test Done Monthly During Treatment

Time frame: 2 years

Population: Data not collected due to low accrual and early termination.

Secondary

Progression-free Survival Assessed by Clinical and Radiographic Response From First Day of Treatment Until Tumor Progression

Time frame: 5 years

Population: Data not collected due to low accrual and early termination.

Secondary

Quality of Life Assessed by EORTC QOL Before Treatment and Then Every 3 Months

Time frame: 5 years

Population: Data not collected due to low accrual and early termination.

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026