MIBG for Refractory Neuroblastoma and Pheochromocytoma
This is a best available therapy/compassionate use single institution study designed to determine the palliative benefit and toxicity of 131I-MIBG in patients with progressive neuroblastoma and metastatic pheochromocytoma who are not eligible for therapies of higher priority. Patients may receive a range of doses depending on stem cell availability and tumor involvement of bone marrow. Response rate, toxicity, and time to progression and death will be evaluated.
Drug: 131 I-Metaiodobenzylguanidine (131I-MIBG)
Drug: Potassium iodide solution
Procedure: hematopoietic stem cell infusion
|Study Design:||Endpoint Classification: Safety/Efficacy Study
Intervention Model: Single Group Assignment
Masking: Open Label
Primary Purpose: Treatment
|Official Title:||131I-Metaiodobenzylguanidine (131I-MIBG) Therapy for Refractory Neuroblastoma and Pheochromocytoma|
- Number of patients who receive 131 I-MIBG. [ Time Frame: 2 hours ] [ Designated as safety issue: No ]The number of patients with relapsed/refractory neuroblastoma or metastatic pheochromocytoma who receive access to 131 I-MIBG.
- Disease response [ Time Frame: 1 year ] [ Designated as safety issue: No ]Disease response to 131 I-MIBG therapy in patients with relapsed/refractory neuroblastoma or metastatic pheochromocytoma. Disease response will be measured by Curie Score for patients with MIBG avid disease only or by both Currie Score and RECIST criteria for patients who have measureable disease in addition to MIBG avid disease. Disease response will be assessed at day 56 (+/- 14 days) and then every 3 months until 1-year post treatment, then every 6 months until progression, death or other therapy.
- Incidence of hematologic toxicities [ Time Frame: 1 year ] [ Designated as safety issue: Yes ]Evaluation of hematologic toxicities of 131I MIBG therapy. CBC with differential and platelet count will be obtained prior to study enrollment, on day 0 and then twice weekly until ANC>500/mm3 and platelet count >20,000 x 3 days without transfusion. Once that is achieved CBC will be then obtained on day 56 and then every 3 months until 1 year post treatment, then every 6 months until progression, death or other therapy. In addition, we will be looking at the percent of patient that require infusion of stem cell product for cytopenias.
- Incidence of hepatic toxicities [ Time Frame: 1 year ] [ Designated as safety issue: Yes ]ALT, AST, bilirubin will be obtained prior to study enrollment and then weekly until day 42, again on day 56 and then every 3 months until 1 year post treatment, then every 6 months until progression, death or other therapy
- Incidence of Thyroid Toxicity [ Time Frame: 1 year ] [ Designated as safety issue: Yes ]T4 and TSH will be obtained prior to study enrollment and again on day 56 and then every 3 months until 1 year post treatment, then every 6 months until progression, death or other therapy.
- Improvement of pain symptoms [ Time Frame: 56 days ] [ Designated as safety issue: No ]Assessment of pain will occur on day 0 of therapy, on the day of discharge and then weekly until day 42 and then again on day 56. The PedsQL Pediatric Pain Questionnaire will be used for assessment of pain in all patients. These questionnaires include both patient report and parent report, when appropriate.
- Improvement of fatigue [ Time Frame: 56 days ] [ Designated as safety issue: No ]Assessment of fatigue will occur on day 0 of therapy, on the day of discharge and then weekly until day 42 and then again on day 56. The PedsQL Multidimensional Fatigue Scale will be used for assessment of fatigue in all patients. These scales include both patient report and parent report, when appropriate.
|Study Start Date:||December 2013|
|Estimated Study Completion Date:||December 2018|
|Estimated Primary Completion Date:||December 2018 (Final data collection date for primary outcome measure)|
Experimental: 131 I-MIBG Treatment Arm
Therapeutic 131 I-Metaiodobenzylguanidine (131I-MIBG) will be infused intravenously, intravenous fluids will be administered to help maintain urine flow and isotope excretion. Potassium iodide solution will be administered to protect thyroid function. G-CSF will be used if necessary for neutrophil recovery. Hematopoietic stem cell infusion if meets the criteria.
Drug: 131 I-Metaiodobenzylguanidine (131I-MIBG)
Minimum dose of 10 mCi/kg and up to 18 mCi/kg maximum will be diluted in 25 ml of normal saline, and will be infused intravenously over 90-120 minutes.
Other Name: 131I-MIBGDrug: Potassium iodide solution
For the therapeutic MIBG administration, potassium iodide solution will be administered in a loading dose of 6mg/kg orally at least 8 hours prior to the MIBG injection, and then will be given at 1mg/kg/dose every 4 hours on days 0-6, then 1 mg/kg/day through day 45 post injection. The minimum dose of potassium iodide to be given is one drop, which equals 50 mg.
Other Name: KI solutionDrug: G-CSF
It is recommended that patients with ANC less than 750 after MIBG infusion begin G-CSF 5 mcg/kg/day subcutaneously (or receive equivalent single dose of Neulasta every 14 days while neutropenic) until neutrophil recovery (generally >5000).
Other Name: NeulastaProcedure: hematopoietic stem cell infusion
The majority of patients on this protocol will have autologous PBSCs available. Allogeneic stem cells may be utilized in patients who has received a prior allogeneic transplant. The minimum quantity for peripheral blood stem cells is 1.5 x 106 CD34+ cells/kg (optimum > 2 x 106 CD34+ cells/kg). The minimum dose for bone marrow is 1.0 x 108 mononuclear cells/kg (optimum >2.0 x 108 mononuclear cells/kg). Infusion will be performed according to institutional guidelines.
Other Name: HSCT
Primary Objective is to provide access to therapy with 131I-MIBG for patients with relapsed/refractory neuroblastoma or metastatic pheochromocytoma.
Secondary Objective is to assess disease response to 131I-MIBG therapy for patients with relapsed/refractory neuroblastoma or metastatic pheochromocytoma.
Tertiary Objectives are to 1) gain more information about the toxicities of 131I-MIBG therapy; 2) assess improvement of symptoms, including pain and fatigue, for patients with relapsed/refractory neuroblastoma or metastatic pheochromocytoma who are receiving 131I-MIBG therapy.
The therapeutic dose of 131I-MIBG will be based on the following:
- Minimum dose of 10 mCi/kg for patients without a stem cell source whose renal function is above the upper limit of normal but still meets eligibility criteria.
- Dose of 12 mCi/kg for patients without a stem cell source with normal renal function and meets other eligibility criteria.
- Dose of > 12 mCi/kg to 18 mCi/kg maximum at investigator's discretion for patients meeting eligibility criteria with stem cells available.
- A urinary catheter and intravenous fluids will be used for bladder protection, and potassium iodide solution for thyroid Protection.
- G-CSF is recommended for patients with ANC less than 750 after MIBG infusion.
- hematopoietic stem cell infusion is recommended for patients with grade 4 hematologic toxicity following 131I-MIBG therapy that continues to have an ANC <200 on G-CSF without signs of recovery for >2 weeks and any patient requiring platelet transfusion more than two times weekly for 4 consecutive weeks.
- Follow-up will be done until disease progression, death or other therapies are initiated.
Please refer to this study by its ClinicalTrials.gov identifier: NCT01850888
|Contact: Emily Greengard, MDemail@example.com|
|United States, Minnesota|
|University of Minnesota Masonic Cancer Center||Recruiting|
|Minneapolis, Minnesota, United States, 55455|
|Contact: Emily G Greengard, MD 612-626-2378 firstname.lastname@example.org|
|Principal Investigator: Emily G Greengard, MD|
|Principal Investigator:||Emily Greengard, MD||University of Minnesota Department of Pediatrics|