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Immunosuppressant Drugs and Their Effects on Children Undergoing Solid Organ Transplant
Joseph A Spinner1, Susan W Denfield1
1Division of Cardiology, Department of Pediatrics, Baylor College of Medicine, Texas Children's Hospital, Houston, TX.
Insights
Pediatricians must understand immunosuppression after solid organ transplant (SOT) to manage drug interactions and avoid complications. Awareness of immunosuppression
Area of Science:
- Pediatric Solid Organ Transplantation
- Immunosuppression Therapy
- Pharmacology and Drug Interactions
Background:
- Over 112,000 individuals, including thousands of children, are on waiting lists for solid organ transplants (SOT) in the US.
- Solid organ rejection remains a major cause of morbidity and mortality post-transplant, necessitating lifelong immunosuppression.
- Pediatric SOT is increasing, highlighting the need for specialized care and awareness among general pediatricians.
Purpose of the Study:
- To inform pediatricians about the critical role of immunosuppression in pediatric SOT.
- To emphasize the importance of recognizing and managing drug interactions associated with immunosuppressive medications.
- To guide pediatricians in differentiating common childhood illnesses from SOT-specific complications.
Main Methods:
- Review of current immunosuppressive drug classes and therapeutic phases (early, maintenance, rescue).
- Discussion of factors influencing drug selection and dosage, including transplant type and patient specifics.
- Analysis of potential adverse effects of immunosuppression, such as infections, malignancy, and nephrotoxicity.
Main Results:
- Immunosuppression requires a delicate balance to prevent rejection without causing excessive toxicity.
- Immunosuppressive drugs frequently interact with commonly prescribed medications, necessitating careful management and dose titration.
- Pediatricians play a vital role in monitoring children post-SOT for both routine and transplant-related issues.
Conclusions:
- Pediatricians must be knowledgeable about immunosuppression protocols and potential drug interactions in children undergoing SOT.
- Vigilance is required to distinguish between common pediatric conditions and serious transplant-related complications.
- Current vaccine recommendations for immunosuppressed pediatric SOT recipients are also crucial for optimal patient outcomes.
Abstract:
More than 112,000 men, women, and children are awaiting solid organ transplant (SOT) as of March 2020, and more than 39,000 transplants were performed in the United States in 2019. Approximately 2,000 children undergo SOT every year in the United States, and the number of children awaiting SOT continues to increase. Immunosuppression is the mainstay of prevention and treatment of solid organ rejection, a significant source of morbidity and mortality after SOT. There are several different classes of immunosuppressive drugs, and the phases of immunosuppression after SOT can be divided into early, maintenance, and rescue therapies. The specific class and dose of drug will be determined by the type of organ transplant, time since transplant, phase of therapy, and other patient-specific considerations. The goal of the transplant team is to find the optimal balance between too little immunosuppression and too much immunosuppression. Too little immunosuppression can result in organ rejection, but too much immunosuppression can result in increased infections, increased malignancy, and adverse drug events such as nephrotoxicity. Although the specific drug choice and dosage will be managed by specialized transplant physicians, these immunosuppressive drugs have many drug interactions with commonly prescribed medications and require dose titration. To provide the best care to children who have received a SOT, pediatricians should be aware of these interactions and be able to distinguish routine pediatric concerns from transplant immunosuppression-related infections or complications. Current vaccine recommendations for children receiving immunosuppression after SOT are also discussed.
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