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Table 2 The feasibility of initiating a combination treatment regimen of up to four targeted agents is represented in the above table, with 84% of subjects able to start all recommended agents during cycle 1. All related and unexpected adverse events of grade 3 or higher were collected for this clinical trial and reported to the BCC. Only one grade 3 related and unexpected hematologic toxic effect occurred during this trial. Six grade 3 and one grade 4 non‑hematologic toxic effects that were related and unexpected occurred during the trial. Toxicity-associated events attributable to MGT causing a delay or reduction in treatment, such as medication holds, dose reductions, medication discontinuations, and cycle delays, were captured during cycles 1 and 2 via a retrospective roadmap review. Since this trial involved combination agents, these events were captured by the total number of events and the total number of subjects who experienced an event since subjects may have had > 1 drug held or reduced in dosage

From: Molecular-guided therapy for the treatment of patients with relapsed and refractory childhood cancers: a Beat Childhood Cancer Research Consortium trial

NMTRC009 MGT feasibility and safety profile

N = 144

Started at least one tumor board recommended agent, no. of patients (%)

144 (100%)

Started 100% of tumor board recommended agents, no. of patients (%)

 Cycle 1

121 (84.03%)

 Cycle 2

12 (8.33%)

 Cycle 3

3 (2.08%)

 Cycle 5

1 (0.69%)

 Never

7 (4.86%)

Cycles, no. of patients (%)

 1 cycle

19 (13.19%)

 2 cycles

45 (31.25%)

 3–10 cycles

57 (39.58%)

  > 10 cycles

23 (15.97%)

 

Grade 3

Grade 4

Grade 5

Hematologic toxic effects (related and unexpected), no. of patients (%)

 Anemia

   

 Lymphocytopenia

   

 Neutropenia

   

 Thrombocytopenia

   

 Leukopenia

1 (< 1%)

  

Non-hematologic toxic effects (related and unexpected), no. of patients (%)

 Elevated ALT

   

 Elevated AST

1 (< 1%)

1 (< 1%)

 

 Dehydration

1 (< 1%)

  

 Infection

2 (< 2%)

  

 Oral mucositis

1 (< 1%)

  

 Pancreatitis

1 (< 1%)

  
 

No. of events

No. of patients (%)

Cycle 1 toxicity-associated events

 Medication holds

90

45 (31.25%)

 Dose reductions

9

9 (6.25%)

 Medication discontinuations

9

8 (5.56%)

 Cycle delays

0

0 (0%)

Cycle 2 toxicity-associated events

 Medication holds

105

52 (41.60%)

 Dose reductions

45

31 (24.80%)

 Medication discontinuations

21

15 (12.00%)

 Cycle delays

12

12 (9.60%)