Study: NCT06317662

Intervention type: PROCEDURE
Group type: EXPERIMENTAL
Intervention: Lumbar Puncture
Description: Undergo lumbar puncture

Intervention type: PROCEDURE
Group type: EXPERIMENTAL
Intervention: Lumbar Puncture
Description: Undergo lumbar puncture

Intervention type: PROCEDURE
Group type: EXPERIMENTAL
Intervention: Lumbar Puncture
Description: Undergo lumbar puncture

Intervention type: PROCEDURE
Group type: EXPERIMENTAL
Intervention: Magnetic Resonance Imaging
Description: Undergo MRI

Intervention type: PROCEDURE
Group type: EXPERIMENTAL
Intervention: Magnetic Resonance Imaging
Description: Undergo MRI

Intervention type: PROCEDURE
Group type: EXPERIMENTAL
Intervention: Magnetic Resonance Imaging
Description: Undergo MRI

Intervention type: PROCEDURE
Group type: EXPERIMENTAL
Intervention: Magnetic Resonance Imaging
Description: Undergo MRI

Intervention type: PROCEDURE
Group type: EXPERIMENTAL
Intervention: Magnetic Resonance Imaging
Description: Undergo MRI

Intervention type: PROCEDURE
Group type: EXPERIMENTAL
Intervention: Magnetic Resonance Imaging
Description: Undergo MRI

Intervention type: PROCEDURE
Group type: EXPERIMENTAL
Intervention: Magnetic Resonance Imaging
Description: Undergo MRI

Intervention type: PROCEDURE
Group type: EXPERIMENTAL
Intervention: Magnetic Resonance Imaging
Description: Undergo MRI

Intervention type: DRUG
Group type: EXPERIMENTAL
Intervention: Mercaptopurine
Description: Given PO or NG

Intervention type: DRUG
Group type: EXPERIMENTAL
Intervention: Mercaptopurine
Description: Given PO or NG

Intervention type: DRUG
Group type: EXPERIMENTAL
Intervention: Mercaptopurine
Description: Given PO or NG

Intervention type: DRUG
Group type: EXPERIMENTAL
Intervention: Mercaptopurine
Description: Given PO or NG

Intervention type: DRUG
Group type: EXPERIMENTAL
Intervention: Mercaptopurine
Description: Given PO or NG

Intervention type: DRUG
Group type: EXPERIMENTAL
Intervention: Mercaptopurine
Description: Given PO or NG

Intervention type: DRUG
Group type: EXPERIMENTAL
Intervention: Mercaptopurine
Description: Given PO or NG

Intervention type: DRUG
Group type: EXPERIMENTAL
Intervention: Methotrexate
Description: Given IT or IV or PO or NG

Intervention type: DRUG
Group type: EXPERIMENTAL
Intervention: Methotrexate
Description: Given IT or IV or PO or NG

Intervention type: DRUG
Group type: EXPERIMENTAL
Intervention: Methotrexate
Description: Given IT or IV or PO or NG

Intervention type: DRUG
Group type: EXPERIMENTAL
Intervention: Methotrexate
Description: Given IT or IV or PO or NG

Intervention type: DRUG
Group type: EXPERIMENTAL
Intervention: Methotrexate
Description: Given IT or IV or PO or NG

Intervention type: DRUG
Group type: EXPERIMENTAL
Intervention: Methotrexate
Description: Given IT or IV or PO or NG

Intervention type: DRUG
Group type: EXPERIMENTAL
Intervention: Methotrexate
Description: Given IT or IV or PO or NG

Intervention type: PROCEDURE
Group type: EXPERIMENTAL
Intervention: Multigated Acquisition Scan
Description: Undergo MUGA

Intervention type: PROCEDURE
Group type: EXPERIMENTAL
Intervention: Multigated Acquisition Scan
Description: Undergo MUGA

Intervention type: PROCEDURE
Group type: EXPERIMENTAL
Intervention: Multigated Acquisition Scan
Description: Undergo MUGA