Skip to content
2000
Volume 32, Issue 30
  • ISSN: 0929-8673
  • E-ISSN: 1875-533X

Abstract

Introduction

Paxlovid (nirmatrelvir/ritonavir) has received endorsement from several guidelines for treating COVID-19 in adults, but its use in children is still uncertain.

Objectives

This study aimed to evaluate the safety and effectiveness of paxlovid in pediatric patients in the pediatric intensive care unit (PICU).

Methods

A retrospective analysis was performed on children with COVID-19. The children who received paxlovid comprised the paxlovid group; otherwise, they were referred to as the control group.

Results

A total of 31 children were enrolled, with 12 and 19 participants assigned to the paxlovid and control groups, respectively. Approximately 35% had received vaccination against the novel coronavirus. The control group exhibited a significantly lower mean age in comparison to the paxlovid group ( < 0.001). However, no significant differences were observed between the groups in terms of other baseline data and biochemical indexes at admission. However, on the fifth day of drug administration, the paxlovid group exhibited a statistically significant decrease in temperature compared to the control group ( < 0.05). Additionally, the paxlovid group exhibited a significantly shorter conversion time to negativity for novel coronary genes in the respiratory tract (9.5 days) compared to the control group (16 days, < 0.05). The administration of paxlovid did not result in any observed adverse reactions. Merely two patients exhibited a transient elevation in liver enzyme levels.

Conclusion

The application of paxlovid in critically ill pediatric patients with COVID-19 can effectively control symptoms and promote virus clearance, demonstrating efficacy and a relatively low-risk profile.

Loading

Article metrics loading...

/content/journals/cmc/10.2174/0109298673313885240621110518
2025-07-02
2025-09-29
Loading full text...

Full text loading...

References

  1. Organization W H. WHO COVID-19 Dashboard[EB/OL].Available from: https://covid19.who.int [2024-04-30].
  2. VitielloA. FerraraF. AutiA.M. Di DomenicoM. BoccellinoM. Advances in the Omicron variant development.J. Intern. Med.20222921819010.1111/joim.1347835289434
    [Google Scholar]
  3. ZengX. XieY. YangX. PengZ. TangJ. YangL. LinS. HanJ. ZhangY. WangD. SARS-CoV-2 Surveillance through china influenza surveillance information system: China, December 1, 2022 to February 12, 2023.China CDC Wkly.20235715215810.46234/ccdcw2023.02737009521
    [Google Scholar]
  4. ChenX. YanX. SunK. ZhengN. SunR. ZhouJ. DengX. ZhuangT. CaiJ. ZhangJ. AjelliM. YuH. Estimation of disease burden and clinical severity of COVID-19 caused by Omicron BA.2 in Shanghai, February-June 2022.Emerg. Microbes Infect.20221112800280710.1080/22221751.2022.212843536205530
    [Google Scholar]
  5. dos Santos NascimentoI.J. da Silva-JúniorE.F. de AquinoT.M. Molecular modeling targeting transmembrane serine protease 2 (TMPRSS2) as an alternative drug target against coronaviruses.Curr. Drug Targets202223324025910.2174/138945012266621080909090934370633
    [Google Scholar]
  6. Santos NascimentoI.J. AquinoT.M. Silva-JúniorE.F. Repurposing FDA-approved drugs targeting SARS-CoV2 3CL pro : A study by applying virtual screening, molecular dynamics, MM-PBSA calculations and covalent docking.Lett. Drug Des. Discov.202219763765310.2174/1570180819666220106110133
    [Google Scholar]
  7. LiH. GaoM. YouH. ZhangP. PanY. LiN. QinL. WangH. LiD. LiY. QiaoH. GuL. XuS. GuoW. WangN. LiuC. GaoP. NiuJ. CaoJ. ZhengY. Association of nirmatrelvir/ritonavir treatment on upper respiratory severe acute respiratory syndrome coronavirus 2 reverse transcription-polymerase chain reaction (SARS-CoV-2 RT-PCR) negative conversion rates among high-risk patients with coronavirus disease 2019 (COVID-19).Clin. Infect. Dis.2023763e148e15410.1093/cid/ciac60035870128
    [Google Scholar]
  8. HammondJ. Leister-TebbeH. GardnerA. Oral nirmatrelvir for high-risk, nonhospitalized adults with COVID-19.N. Engl. J. Med.20223861513971408
    [Google Scholar]
  9. WengC. XieR. HanG. YuanY. LiS. WangC. WangX. JiangW. JiangL. Safety and efficacy of paxlovid against omicron variants of coronavirus disease 2019 in elderly patients.Infect. Dis. Ther.202312264966210.1007/s40121‑023‑00760‑x36696068
    [Google Scholar]
  10. CommissionN.H. Diagnosis and treatment plan for novel coronavirus infection.2023Available from: https://emedicine.medscape.com/article/2500114-overview?form=fpf
  11. YanG. ZhouJ. ZhuH. ChenY. LuY. ZhangT. YuH. WangL. XuH. WangZ. ZhouW. The feasibility, safety, and efficacy of Paxlovid treatment in SARS-CoV-2-infected children aged 6–14 years: A cohort study.Ann. Transl. Med.2022101161910.21037/atm‑22‑279135813342
    [Google Scholar]
  12. ShiS. DongN. DingY. COVID-19 treated with oral Nirmatrelvir-Ritonavir in 3 children.Zhonghua Er Ke Za Zhi2022601111681171
    [Google Scholar]
  13. HuangJ. YinD. QinX. YuM. JiangB. ChenJ. CaoQ. TangZ. Case report: Application of nirmatrelvir/ritonavir to treat COVID-19 in a severe aplastic anemia child after allogeneic hematopoietic stem cell transplantation.Front Pediatr.20221093511810.3389/fped.2022.93511836003491
    [Google Scholar]
  14. CokleyJ.A. GidalB.E. KellerJ.A. VosslerD.G. Paxlovid TM information from FDA and guidance for AES members.Epilepsy Curr.202222320120410.1177/1535759722108841536451851
    [Google Scholar]
  15. FishbaneS. HirschJ.S. NairV. Special considerations for paxlovid treatment among transplant recipients with SARS-CoV-2 infection.Am. J. Kidney Dis.202279448048210.1053/j.ajkd.2022.01.00135032591
    [Google Scholar]
  16. CaseyB.III VernickR.C. BahekarA. PatelD. Ncogo AleneI. Ranolazine toxicity secondary to paxlovid.Cureus2023154e3715337153311
    [Google Scholar]
  17. ZaarurL. PatelA. PasternakB. Drug interaction between tacrolimus and paxlovid (nirmatrelvir/ritonavir) in an adolescent with inflammatory bowel disease.JPGN Rep.202344e35210.1097/PG9.000000000000035238034448
    [Google Scholar]
  18. YoungC. PapiroT. GreenbergJ.H. Elevated tacrolimus levels after treatment with nirmatrelvir/ritonavir (Paxlovid) for COVID-19 infection in a child with a kidney transplant.Pediatr. Nephrol.20233841387138810.1007/s00467‑022‑05712‑035982345
    [Google Scholar]
  19. MarzoliniC. KuritzkesD.R. MarraF. BoyleA. GibbonsS. FlexnerC. PozniakA. BoffitoM. WatersL. BurgerD. BackD.J. KhooS. Recommendations for the management of drug–drug interactions between the COVID-19 antiviral nirmatrelvir/ritonavir (paxlovid) and comedications.Clin. Pharmacol. Ther.202211261191120010.1002/cpt.264635567754
    [Google Scholar]
  20. ZimmermannP. CurtisN. Why is COVID-19 less severe in children? A review of the proposed mechanisms underlying the age-related difference in severity of SARS-CoV-2 infections.Arch. Dis. Child.2020202032033833262177
    [Google Scholar]
  21. Najjar-DebbinyR. GronichN. WeberG. KhouryJ. AmarM. SteinN. GoldsteinL.H. SalibaW. Effectiveness of paxlovid in reducing severe coronavirus disease 2019 and mortality in high-risk patients.Clin. Infect. Dis.2023763e342e34910.1093/cid/ciac44335653428
    [Google Scholar]
  22. WenW. ChenC. TangJ. WangC. ZhouM. ChengY. ZhouX. WuQ. ZhangX. FengZ. WangM. MaoQ. Efficacy and safety of three new oral antiviral treatment (molnupiravir, fluvoxamine and Paxlovid) for COVID-19: A meta-analysis.Ann. Med.202254151652310.1080/07853890.2022.203493635118917
    [Google Scholar]
  23. SunF. LinY. WangX. GaoY. YeS. Paxlovid in patients who are immunocompromised and hospitalised with SARS-CoV-2 infection.Lancet Infect. Dis.2022229127910.1016/S1473‑3099(22)00430‑335843259
    [Google Scholar]
  24. PeskoB. DengA. ChanJ.D. NemeS. DhanireddyS. JainR. Safety and tolerability of paxlovid (nirmatrelvir/ritonavir) in high-risk patients.Clin. Infect. Dis.202275112049205010.1093/cid/ciac58835869852
    [Google Scholar]
  25. AlteriC. FoxV. ScutariR. BurasteroG.J. VolpiS. FaltoniM. FiniV. GranagliaA. EspertiS. GalleraniA. CostabileV. FontanaB. FranceschiniE. MeschiariM. CampanaA. BernardiS. VillaniA. BernaschiP. RussoC. GuaraldiG. MussiniC. PernoC.F. A proof-of-concept study on the genomic evolution of SARS-CoV-2 in molnupiravir-treated, paxlovid-treated and drug-naïve patients.Commun. Biol.202251137610.1038/s42003‑022‑04322‑836522489
    [Google Scholar]
  26. WongC.K.H. AuI.C.H. LauK.T.K. LauE.H.Y. CowlingB.J. LeungG.M. Real-world effectiveness of molnupiravir and nirmatrelvir plus ritonavir against mortality, hospitalisation, and in-hospital outcomes among community-dwelling, ambulatory patients with confirmed SARS-CoV-2 infection during the omicron wave in Hong Kong: an observational study.Lancet2022400103591213122210.1016/S0140‑6736(22)01586‑036216007
    [Google Scholar]
  27. LiuJ. PanX. ZhangS. LiM. MaK. FanC. LvY. GuanX. YangY. YeX. DengX. WangY. QinL. XiaZ. GeZ. ZhouQ. ZhangX. LingY. QiT. WenZ. HuangS. ZhangL. WangT. LiuY. HuangY. LiW. DuH. ChenY. XuY. ZhaoQ. ZhaoR. AnnaneD. QuJ. ChenD. Efficacy and safety of Paxlovid in severe adult patients with SARS-Cov-2 infection: A multicenter randomized controlled study.Lancet Reg. Health West. Pac.20233310069410.1016/j.lanwpc.2023.10069436777445
    [Google Scholar]
  28. LiY. LiuY. WenL. ChenH. WangW. TianM. ChengY. XueH. ChenC. Clinical efficacy analysis of paxlovid in children with hematological diseases infected with the omicron SARS-CoV-2 new variant.Front Pediatr.202311116092910.3389/fped.2023.116092937181421
    [Google Scholar]
  29. ChenP. WangJ. ChangS. Factors associated with viral rebound among COVID-19 patients receiving oral antivirals.J. Form. Med. Assoc.20231228766775
    [Google Scholar]
  30. AndersonA.S. CaubelP. RusnakJ.M. Nirmatrelvir–ritonavir and viral load rebound in COVID-19.N. Engl. J. Med.2022387111047104910.1056/NEJMc220594436069818
    [Google Scholar]
  31. CharnessM.E. GuptaK. StackG. Rebound of SARS-CoV-2 infection after nirmatrelvir-ritonavir treatment.N. Engl. J. Med.20223871110451047
    [Google Scholar]
  32. ChaglaZ. In outpatients with COVID-19 during Omicron variant circulation, molnupiravir and nirmatrelvir–ritonavir improved outcomes.Ann. Intern. Med.20241771JC710.7326/J23‑010838163374
    [Google Scholar]
  33. LaiC.C. HsuehP.R. Coronavirus disease 2019 rebounds following nirmatrelvir/ritonavir treatment.J. Med. Virol.2023952e2843010.1002/jmv.2843036571273
    [Google Scholar]
  34. RubinR. From positive to negative to positive again the mystery of why COVID-19 rebounds in some patients who take paxlovid.JAMA2022327242380238210.1001/jama.2022.992535675094
    [Google Scholar]
/content/journals/cmc/10.2174/0109298673313885240621110518
Loading
/content/journals/cmc/10.2174/0109298673313885240621110518
Loading

Data & Media loading...

This is a required field
Please enter a valid email address
Approval was a Success
Invalid data
An Error Occurred
Approval was partially successful, following selected items could not be processed due to error
Please enter a valid_number test