References

1. Patel B, Pearson H, Zacharoulis S: Mobilisation of haematopoietic stem cells in paediatric patients, prior to autologous transplantation following administration of plerixafor and G-CSF. Pediatr Blood Cancer 62 (8): 1477-80, 2015. [PubMed: 25755177]

Autologous Hematopoietic Stem Cell Transplant (HSCT) Indications for Solid Tumors and Lymphomas

In pediatrics, the most common autologous HSCT indications are for the treatment of some solid tumors and lymphomas.

Autologous transplants have also been used to reset the immune system in patients with severe autoimmune disorders and to enable engraftment of genetically modified autologous hematopoietic stem cell progenitors to correct or ameliorate inherited disorders (e.g., immunodeficiencies, metabolic disorders, and hemoglobinopathies). These indications are not covered in this summary.

Indications for HSCT vary over time as risk classifications for a given malignancy change and the efficacy of primary therapy improves. It is best to include specific indications in the context of complete therapy for any given disease.

With this in mind, links to sections in specific summaries that cover the most common pediatric autologous HSCT indications are provided below.

1. Neuroblastoma.

   • For more information, see the sections on Treatment of High-Risk Neuroblastoma and Recurrent Neuroblastoma in Patients Initially Classified as High Risk in Neuroblastoma Treatment.
2. Brain tumors. Indications for young patients to reduce or eliminate cranial radiation therapy; indications for responsive tumors at relapse.

   • For more information, see the Treatment of Pediatric-Type Diffuse High-Grade Gliomas section in Childhood Astrocytomas, Other Gliomas, and Glioneuronal/Neuronal Tumors Treatment.
   • For more information, see the Treatment of Childhood CNS Atypical Teratoid/Rhabdoid Tumor section in Childhood Central Nervous System Atypical Teratoid/Rhabdoid Tumor Treatment.
   • For more information, see the sections on Treatment of Childhood Medulloblastoma, Treatment of Childhood Pineoblastoma, and Treatment of Recurrent Childhood Medulloblastoma and Other CNS Embryonal Tumors in Childhood Medulloblastoma and Other Central Nervous System Embryonal Tumors Treatment.
3. Germ cell tumors (GCTs) (intracranial and extracranial).

   • For more information, see the Nonstandard Treatment Options for Recurrent Malignant GCTs in Children section in Childhood Extracranial Germ Cell Tumors Treatment.
   • For more information, see the Treatment of Recurrent Childhood CNS Germ Cell Tumors section in Childhood Central Nervous System Germ Cell Tumors Treatment.
4. Retinoblastoma.

   • For more information, see the sections on Treatment of CNS Disease, Treatment of Synchronous Trilateral Retinoblastoma, Treatment of Extracranial Metastatic Retinoblastoma, and Treatment of Progressive or Recurrent Extraocular Retinoblastoma in Retinoblastoma Treatment.
5. Hodgkin lymphoma.

   • For more information, see the Treatment of Primary Refractory or Recurrent Hodgkin Lymphoma in Children and Adolescents section in Childhood Hodgkin Lymphoma Treatment.
6. Non-Hodgkin lymphoma.

   • For more information, see the sections on Treatment options for recurrent or refractory Burkitt lymphoma, Treatment Options for Recurrent or Refractory Lymphoblastic Lymphoma, Treatment Options for Recurrent or Refractory Anaplastic Large Cell Lymphoma, Treatment options for lymphoproliferative disease associated with primary immunodeficiency, Treatment options for peripheral T-cell lymphoma, and Treatment options for cutaneous T-cell lymphoma in Childhood Non-Hodgkin Lymphoma Treatment.

For autologous transplants to result in cure of malignancies, the following must apply:

• A dose-intensified chemotherapy regimen (with or without radiation therapy) with hematopoietic stem cell support is used to achieve a significantly higher cell kill than could be achieved without the use of hematopoietic stem cell support. This approach may include increased tumor kill in areas where standard-dose chemotherapy has less penetration (central nervous system).
• Meaningful percentages of cure or long-term remission from the disease must occur without significant nonhematopoietic toxicities that would otherwise limit the therapeutic benefit achieved.

The tumor-specific activity and intensity of agents used for autologous regimens have been shown to be important in improving survival.

The contamination of the collected stem cell product by persistent tumor cells is a concern with autologous approaches. Although techniques have been developed to remove or purge tumor cells from products, studies to date have shown no benefit to tumor purging.[1]

References

1. Kreissman SG, Seeger RC, Matthay KK, et al.: Purged versus non-purged peripheral blood stem-cell transplantation for high-risk neuroblastoma (COG A3973): a randomised phase 3 trial. Lancet Oncol 14 (10): 999-1008, 2013. [PMC free article: PMC3963485] [PubMed: 23890779]

Purpose of This Summary

This PDQ cancer information summary for health professionals provides comprehensive, peer-reviewed, evidence-based information about the use of autologous hematopoietic stem cell transplant in treating pediatric cancer. It is intended as a resource to inform and assist clinicians in the care of their patients. It does not provide formal guidelines or recommendations for making health care decisions.

Reviewers and Updates

This summary is reviewed regularly and updated as necessary by the PDQ Pediatric Treatment Editorial Board, which is editorially independent of the National Cancer Institute (NCI). The summary reflects an independent review of the literature and does not represent a policy statement of NCI or the National Institutes of Health (NIH).

Board members review recently published articles each month to determine whether an article should:

• be discussed at a meeting,
• be cited with text, or
• replace or update an existing article that is already cited.

Changes to the summaries are made through a consensus process in which Board members evaluate the strength of the evidence in the published articles and determine how the article should be included in the summary.

The lead reviewers for Pediatric Autologous Hematopoietic Stem Cell Transplant are:

• Thomas G. Gross, MD, PhD (National Cancer Institute)
• Michael A. Pulsipher, MD (Huntsman Cancer Institute at University of Utah)

Any comments or questions about the summary content should be submitted to Cancer.gov through the NCI website's Email Us. Do not contact the individual Board Members with questions or comments about the summaries. Board members will not respond to individual inquiries.

Levels of Evidence

Some of the reference citations in this summary are accompanied by a level-of-evidence designation. These designations are intended to help readers assess the strength of the evidence supporting the use of specific interventions or approaches. The PDQ Pediatric Treatment Editorial Board uses a formal evidence ranking system in developing its level-of-evidence designations.

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The preferred citation for this PDQ summary is:

PDQ® Pediatric Treatment Editorial Board. PDQ Pediatric Autologous Hematopoietic Stem Cell Transplant. Bethesda, MD: National Cancer Institute. Updated <MM/DD/YYYY>. Available at: https://www.cancer.gov/types/childhood-cancers/hp-stem-cell-transplant/autologous. Accessed <MM/DD/YYYY>. [PMID: 35133767]

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