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Busulfan, Melphalan, Topotecan Hydrochloride, and a Stem Cell Transplant in Treating Patients With Newly Diagnosed or Relapsed Solid Tumor

Pilot Study of High-Dose Chemotherapy With Busulfan, Melphalan, and Topotecan Followed by Autologous Hematopoietic Stem Cell Transplant in Advanced Stage and Recurrent Tumors

Status
Completed
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00638898
Enrollment
25
Registered
2008-03-19
Start date
2007-02-26
Completion date
2024-12-10
Last updated
2025-03-20

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

Conditions

Adult Central Nervous System Germ Cell Tumor, Adult Rhabdomyosarcoma, Childhood Central Nervous System Germ Cell Tumor, Childhood Soft Tissue Sarcoma, Ewing Sarcoma, Metastatic Ewing Sarcoma/Peripheral Primitive Neuroectodermal Tumor, Ovarian Mixed Germ Cell Tumor, Previously Untreated Childhood Rhabdomyosarcoma, Recurrent Adult Brain Tumor, Recurrent Adult Soft Tissue Sarcoma, Recurrent Childhood Brain Stem Glioma, Recurrent Childhood Cerebellar Astrocytoma, Recurrent Childhood Cerebral Astrocytoma, Recurrent Childhood Ependymoma, Recurrent Childhood Malignant Germ Cell Tumor, Recurrent Childhood Medulloblastoma, Recurrent Childhood Pineoblastoma, Recurrent Childhood Supratentorial Primitive Neuroectodermal Tumor, Recurrent Childhood Visual Pathway and Hypothalamic Glioma, Recurrent Childhood Visual Pathway Glioma, Recurrent Ewing Sarcoma/Peripheral Primitive Neuroectodermal Tumor, Recurrent Extragonadal Germ Cell Tumor, Recurrent Extragonadal Non-seminomatous Germ Cell Tumor, Recurrent Malignant Testicular Germ Cell Tumor, Recurrent Neuroblastoma, Recurrent Ovarian Germ Cell Tumor, Recurrent Wilms Tumor and Other Childhood Kidney Tumors, Solid Tumor, Unspecified Adult Solid Tumor, Protocol Specific, Unspecified Childhood Solid Tumor, Protocol Specific

Brief summary

RATIONALE: Giving high-dose chemotherapy before an autologous stem cell transplant stops the growth of tumor cells by stopping them from dividing or killing them. Giving colony-stimulating factors, such as G-CSF, helps stem cells move from the bone marrow to the blood so they can be collected and stored. Chemotherapy is then given to prepare the bone marrow for the stem cell transplant. The stem cells are then returned to the patient to replace the blood-forming cells that were destroyed by the chemotherapy. PURPOSE: This clinical trial is studying how well giving busulfan, melphalan, and topotecan hydrochloride together with a stem cell transplant works in treating patients with newly diagnosed or relapsed solid tumor.

Detailed description

OBJECTIVES: I. To assess the feasibility of a novel combination conditioning therapy with busulfan/melphalan and topotecan followed by autologous hematopoietic stem cell transplantation (HSCT) in patients with relapsed, refractory and/or poor risk pediatric solid tumors. II. To determine within the confines of this pilot study, myeloid and platelet engraftment, overall survival and disease-free survival in patients with relapsed, refractory pediatric solid tumors and in patients who have solid tumors with poor risk factors at the time of diagnosis. III. To determine the pharmacokinetics of topotecan. OUTLINE: AUTOLOGOUS HEMATOPOIETIC STEM CELL OR AUTOLOGOUS BONE MARROW COLLECTION: Patients undergo stem cell mobilization per institutional guidelines with G-CSF IV or subcutaneously, continuing until the completion of leukapheresis. Patients undergo apheresis after mobilization and continue until a minimum of 2.0 x 10\^6 CD34 cells/kg or more are collected. Cells are processed and cryopreserved following institutional guidelines. Patients who collect \> 2.0 x 10\^6 CD34+ cells/kg may proceed to high-dose chemotherapy. HIGH-DOSE CHEMOTHERAPY: Patients receive topotecan hydrochloride IV continuously over 24 hours on days -8 to -4, busulfan IV every 6 hours on days -8 to -4, and melphalan IV over 30 minutes on days -3 and -2. AUTOLOGOUS HEMATOPOIETIC STEM CELL OR AUTOLOGOUS BONE MARROW REINFUSION: Patients undergo autologous hematopoietic stem cell transplantation or autologous bone marrow transplantation on day 0. Patients also receive G-CSF IV daily beginning on day +5 and continuing until blood counts recover. After completion of study treatment, patients are followed every 3 months for 1 year and then annually thereafter.

Interventions

DRUGbusulfan

Given IV

DRUGmelphalan

Given IV

DRUGtopotecan hydrochloride

Given IV

OTHERlaboratory biomarker analysis

Correlative studies

BIOLOGICALfilgrastim

Given IV or subcutaneously

PROCEDUREautologous hematopoietic stem cell transplantation

Undergo transplantation

OTHERpharmacological study

Correlative studies

PROCEDUREautologous bone marrow transplantation

Undergo transplantation

Sponsors

City of Hope Medical Center
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
6 Months to 40 Years
Healthy volunteers
No

Inclusion criteria

Inclusion * Patients with relapsed neuroblastoma, rhabdomyosarcoma, Ewing's sarcoma, PNET, brain tumors, soft tissue sarcomas, Wilm's tumors, germ cell tumors or other solid tumors who achieved at least partial response (PR) to chemotherapy, surgery, or radiotherapy * Newly diagnosed patients for poor-risk pediatric solid tumors: metastatic Ewing's, metastatic PNET, rhabdomyosarcoma, soft tissue sarcomas, octeomesenchymoma, and others that are at a high risk of relapse and who have achieved at least partial response (PR) to chemotherapy, surgery, or radiotherapy * For any of the above categories, an attempt to achieve a complete response (CR) or PR should be made; pre-transplant modalities may include surgery, chemotherapy, or radiation therapy; radiation must not include lung fields; only patients in CR or PR at the primary site will be eligible * HIGH-DOSE CHEMOTHERAPY: Histologically confirmed diagnosis by Anatomic Pathology Department; if recurrent or metastatic disease, histologic confirmation should be obtained, with the exception of brain stem tumors; in neuroblastoma, demonstration of marrow metastases with elevated urinary catecholamines is adequate for diagnosis * HIGH-DOSE CHEMOTHERAPY: No contraindications to the stem cell collection by apheresis or by bone marrow harvesting * HIGH-DOSE CHEMOTHERAPY: All patients, or their legal guardians must have signed a voluntary informed consent in accordance with the institutional and federal guidelines * HIGH-DOSE CHEMOTHERAPY: Adequate renal function as demonstrated by creatinine clearance (12 or 24 hour urine collection) or glomerular filtration rate (GFR) \> 60 ml/min/1.73m\^2 * HIGH-DOSE CHEMOTHERAPY: Adequate cardiac function as demonstrated by ejection fraction \> 55% by echocardiogram or MUGA * HIGH-DOSE CHEMOTHERAPY: Adequate hepatic function as demonstrated by bilirubin \< 2 mg/dL, SGOT and SGPT \< 5 x upper limits of normal * HIGH-DOSE CHEMOTHERAPY: Adequate bone marrow function as evidenced by platelet count \> 50,000/ul and absolute granulocyte count \>= 750 ul * HIGH-DOSE CHEMOTHERAPY: Adequate pulmonary function adults (older than 16 years): FEV1 \> 2 liters, room air PaO2 \> 70 mm Hg, room air PaCO2 \< 42 mm Hg, and DLCO \> 50% predicted; children (younger than 16 years): DLCO \> 50% predicted * HIGH-DOSE CHEMOTHERAPY: Pretreatment tests and clinical and laboratory tests must have been performed within 4 weeks prior to initiation of high-dose chemotherapy * HIGH-DOSE CHEMOTHERAPY: No other medical and/or psychosocial problems which in the opinion of the primary physician or principal investigator would place the patient at unacceptable risk from this regimen * HIGH-DOSE CHEMOTHERAPY: Greater than 2-week period of recovery from prior modality used to control primary or recurrent site Exclusion * Histologically confirmed bone marrow metastases within 30 days prior to transplant; prior bone marrow metastases with clearing of bone marrow (\< 5% contamination as measured by bilateral bone marrow biopsies) at the time for evaluation for this protocol is acceptable * Karnofsky performance status \< 60% or Lansky performance status \< 50% for patients younger than 16 years old * Females of reproductive age who are not using adequate birth control measures or who are pregnant * HIV disease * Patients with prior treatment with myeloablative therapy are excluded

Design outcomes

Primary

MeasureTime frame
Treatment feasibility in terms of investigational agent-related adverse events of a novel treatment combination followed by peripheral blood stem cell rescueDay 100 post stem cell rescue

Secondary

MeasureTime frame
Incidence of myeloid and platelet engraftmentDay 100 post stem cell rescue
Pharmacokinetics and pharmacodynamics of topotecan hydrochloride and busulfanBaseline through day 4 of investigational agent treatment
Overall survival1 year post stem cell rescue
Disease-free survival1 year post stem cell rescue

Countries

United States

Outcome results

None listed

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