Chemotherapy With Low-Dose Radiation for Pediatric Hodgkin Lymphoma

• Event free survival [ Time Frame: 3 years ] [ Designated as safety issue: Yes ]
  the time from treatment start to the time of the first failure (disease recurrence, second malignancy or death)
  
  

• Disease failure rate within radiation fields [ Time Frame: 3 years ] [ Designated as safety issue: No ]
  Defined as disease that recurs in the initially involved nodal region within the field of irradiation. The disease failure rate within the radiation fields will be estimated with a 95% confidence interval using appropriate methods (e.g., estimate cumulative incidence in the presence of competing risks).
  
  
• Treatment failure patterns for children treated with tailored-field radiation [ Time Frame: 3 years follow-up ] [ Designated as safety issue: No ]
  Descriptive statistics related to local/distant failure will be produced. The cumulative incidence of local failure will be estimated and effects of prognostic factors will be examined. Effect of competing risks (distant failure, second malignancy and death) will be taken into account. Relapse rate within the radiation fields will be estimated and confidence interval will also be calculated.
  
  
• Prognostic factors for treatment failure [ Time Frame: 3 years follow-up ] [ Designated as safety issue: Yes ]
  
• Describe toxicities, particularly the frequency and severity of late effects of therapy [ Time Frame: 1, 2, 5, and 10 years post therapy ] [ Designated as safety issue: No ]
  
• Patient quality of life (QoL) [ Time Frame: At Diagnosis (T1), completion of 2 cycles of chemotherapy (T2), completion of 4 cycles of chemotherapy (T3), completion of radiation (T4), and 3-6 months (T5) after the completion of therapy ] [ Designated as safety issue: No ]
  Patient QOL will be measured at multiple time points to assess the patient's physical emotional, social, and school functioning
  
  
• Parent proxy quality of life (QoL) [ Time Frame: At Diagnosis (T1), completion of 2 cycles of chemotherapy (T2), completion of 4 cycles of chemotherapy (T3), completion of radiation (T4), and 3-6 months (T5) after the completion of therapy ] [ Designated as safety issue: No ]
  Parent's assessment of child's physical, emotional, social, and school functioning over multiple time points.
  
  
• Correlation of agreement between patient QoL and parent proxy QoL at multiple time points [ Time Frame: At Diagnosis (T1), completion of 2 cycles of chemotherapy (T2), completion of 4 cycles of chemotherapy (T3), completion of radiation (T4), and 3-6 months (T5) after the completion of therapy ] [ Designated as safety issue: No ]
  Assess and compare the patient reported and parent proxy quality of life across multiple time points
  
  
• Symptom distress [ Time Frame: At Diagnosis (T1), completion of 2 cycles of chemotherapy (T2), completion of 4 cycles of chemotherapy (T3), completion of radiation (T4), and 3-6 months (T5) after the completion of therapy ] [ Designated as safety issue: No ]
  The patient's degree of discomfort from specific treatment-related symptoms i.e., nausea, sleep disturbances, appetite, etc. across multiple time points.
  
  
• Correlation between QoL and symptom distress [ Time Frame: At Diagnosis (T1), completion of 2 cycles of chemotherapy (T2), completion of 4 cycles of chemotherapy (T3), completion of radiation (T4), and 3-6 months (T5) after the completion of therapy ] [ Designated as safety issue: No ]
  Assess the relationship between quality of life and symptom distress across multiple time points
  
  
• Comparison the survival distributions and toxicities of intermediate risk patients treated with Stanford V chemotherapy low dose tailored-field radiation to those patients on HOD99 [ Time Frame: 3 years ] [ Designated as safety issue: No ]
  Log-rank tests used to compare event-free survival and overall survival
  
  

Treatment Plan Description:

Adriamycin 25 mg/m2 IV Day 1 of weeks 1, 3, 5, 7, 9, 11

Vinblastine 6 mg/m2 IV Day 1 of weeks 1, 3, 5, 7, 9, 11

Nitrogen Mustard 6mg/m2 IV on Day 1 of weeks 1, 5, and 9

Cyclophosphamide 650 mg/m2 IV Day 1 of weeks 1, 5, 9(when Nitrogen Mustard is not available due to national shortage)

Vincristine 1.4 mg/m2 IV Day 1 of weeks 2, 4, 6, 8, 10, 12

Bleomycin 5 units/m2 IV Day 1 of weeks 2, 4, 6, 8, 10, 12

Etoposide 60 mg/m2 IV Days 1,2 of weeks 3, 7, 11

Prednisone* 40 mg/m2/day divided in 3 doses PO Every other day of weeks 1-12

G-CSF (only as needed in case of severe myelo-suppression requiring treatment delay) 5 mcg/kg SC Days 3-13, 16-26, 29-39, 42-52, 55-65, 68-78 (as clinically indicated)

* Prednisone taper is foreseen for the last 2 weeks of therapy. Patients will be treated with 12 weeks of Stanford V chemotherapy in the schedule outlined above. Patients will then receive radiation therapy after completion of 12 weeks of chemotherapy. The radiation dose to individual nodal sties will be based on response after 8 weeks of chemotherapy: 15 Gy for patients achieving a complete response and 25.5 Gy achieving less than a complete response, or patients with bulky mediastinal mass.