Prospective, Open Label, Randomized Phase II Trial to Assess a Multimodal Molecular Targeted Therapy in Children, Adolescent and Young Adults With Relapsed or Refractory High-risk Neuroblastoma (RIST-rNB-2011)

NCT01467986 Phase 2 COMPLETED

Children, adolescents and young adults with high risk relapsed or treatment refractory neuroblastoma (rNB) represent a group of patients with dismal prognosis for whom a recommended standard salvage therapy is currently not available. The multimodal metronomic approach combining molecular targeted drugs (rapamycin and dasatinib) with conventional chemotherapy (irinotecan and temozolomide) will be investigated in a randomized fashion as new treatment strategy for patients with rNB. The intention is to assess the therapeutic benefit of molecular targeted drugs for the treatment of rNB. The combination of irinotecan and temozolomide showed activity in the treatment of several solid organ tumors, brain tumors and neuroblastoma. In one study rNB patients received a median of 5 courses of 5 days irinotecan and temozolomide every 3 to 4 weeks with a cumulative dose of 35% lower than in the RIST design. 33% had disease regression with 8% CR or PR. A phase II study in rNB also using irinotecan and temozolomide with a substantially lower intensity showed a response rate of 15%. The combination of a mTOR inhibitor with a multi-kinase inhibitor demonstrated in preclinical studies a synergistic effect on cell cycle arrest, apoptosis and sensitization for radio- and chemotherapy. It is assumed that this combination of molecular targeted drugs with a tolerable conventional chemotherapy consisting of irinotecan and temozolomide can substantially improve the outcome of this patient population. A group of 20 rNB patients treated with the RIST therapy approach in a compassionate use setting showed an overall survival of 55% at a median of 80 weeks with a tolerable adverse event profile.

Details

Lead sponsor	University of Regensburg
Phase	Phase 2
Status	COMPLETED
Enrolment	130
Start date	2013-08
Completion	2020-09-30

Conditions

• Neuroblastoma Recurrent

Interventions

• Dasatinib
• Rapamycin
• Irinotecan
• Temozolomide
• Irinotecan
• Temozolomide

Primary outcomes

• The primary endpoint is progression-free survival (PFS) — Time interval from date of randomization until the date of first documented progression or date of death from any cause, whichever came first, assessed up to 52 weeks
  The primary objective of this trial is the evaluation of progression-free survival of rNB in children, adolescents and young adults, comparing a multimodal treatment regimen consisting of temozolomide (T), irinotecan (I), rapamycin (R) and dasatinib (S) against irinotecan (I) and temozolomide (T) (I/T) alone

Countries

Germany