Efficacy of Sublingual Atropine to Minimize Drooling in Children with Cerebral Palsy: A Double-Blind Randomized Controlled Trial
DOI:
https://doi.org/10.51253/pafmj.v76iSUPPL-1.13459Keywords:
Atropine, Cerebral Palsy, Drooling, Randomized Controlled Trial, SublingualAbstract
Objective: To determine the efficacy of sublingual Atropine in reducing drooling episodes compared to placebo, thereby improving the quality of life of patients, and potentially offering a noninvasive treatment modality.
Study Design: Randomized Controlled Trial (Registered with Thai Clinical Trials Registry TCTR20241022002)
Place and Duration of Study: Department of Developmental & Behavioral Pediatrics, The Children’s Hospital & University of Child Health Sciences, Lahore, Pakistan, from Sep 2024 to Mar 2025.
Methodology: A total of 116 participants enrolled, with 58 participants in each group. Two patients withdrew due to significant side effects in the intervention group. During a predetermined period, participants were randomized to receive either sublingual Atropine (intervention group-A, n = 56) or a placebo (Group-B, n = 58). The primary outcome was the composite score of the Drooling Impact Scale (DIS).
Results: Baseline Drooling Impact Scale (DIS) scores were comparable between intervention and placebo groups, with median (IQR) of 77.0(70.0–82.0) and 74.5(65.0–83.5), respectively (p = 0.686). Baseline median Drooling Impact Scale (DIS) score decreased from 77.0(IQR 70.0–82.0) to 54.5(IQR 36.8–78.0) to post-intervention (p<0.001). The median reduction in total DIS scores from baseline was −22.5 (−35.2 to −12.0) in the intervention group compared with −2.5 (−10.0 to +5.0) in the placebo group (p<0.001), indicating a significant reduction in drooling severity.
Conclusion: Sublingual Atropine is a safe, effective, and non-invasive treatment for drooling in children with cerebral palsy, offering significant clinical and quality-of-life improvements.
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References
1. Mubaslat O, Lambert T. The effect of sublingual Atropine sulfate on clozapine-induced hypersalivation: a multicentre, randomised placebo-controlled trial. Psychopharmacol 2020; 237(10): 2905–2915.
https://doi.org/10.1007/s00213-020-05627-4
2. Dias BL, Fernandes AR, Maia Filho H. Treatment of drooling with sublingual Atropine sulfate in children and adolescents with cerebral palsy. Arq Neuropsiquiatr 2017;75(5): 282–287.
https://doi.org/10.1590/0004-282x20170033
3. Erasmus CE, van Hulst K, Rotteveel JJ, Jongerius PH. Clinical practice: drooling in children with cerebral palsy. Eur J Pediatr 2012; 171(5): 871–876.
https://doi.org/10.1007/s00431-011-1651-4
4. Taher A, Ahmed S. Frequency and risk factors of drooling in children with cerebral palsy: a cross-sectional study. Pak J Med Sci 2022; 38(2): 435–439.
https://doi.org/10.12669/pjms.38.2.4646
5. Norderyd J, Holmlund T, Alriksson-Schmidt AI. A pilot study on sublingual Atropine for sialorrhea in children with neurodisabilities. Eur J Paediatr Neurol 2017; 21(3): 558–563.
https://doi.org/10.1016/j.ejpn.2016.12.015
6. Ha J, Kim J, Lee H, et al. Comparing botulinum toxin and 4-duct ligation for sialorrhea in children: a systematic review. Int J Pediatr Otorhinolaryngol 2023; 164: 111415.
https://doi.org/10.1016/j.ijporl.2022.111415
7. You P, Strychowsky J, Gandhi K, Chen BA. Anticholinergic treatment for sialorrhea in children: a systematic review. Paediatr Child Health 2021; 27(2): 82–87.
https://doi.org/10.1093/pch/pxab051
8. Reid SM, Johnson HM, Reddihough DS. The Drooling Impact Scale: a measure of the impact of drooling in children with developmental disabilities. Dev Med Child Neurol 2010; 52(2): e23–e28.
https://doi.org/10.1111/j.1469-8749.2009.03534.x
9. Azapağası E, Kendirli T, Perk O, Kutluk G, Öz Tunçer G, Teber S, et al. Sublingual Atropine Sulfate Use for Sialorrhea in Pediatric Patients. J Pediatr Intensive Care 2020; 9(3): 196-200.
https://doi:10.1055/s-0040-1708552.
10. Brown R, Wilson J, Bradley J. Individualized dosing of sublingual Atropine in children with cerebral palsy and drooling: outcomes and safety profile. Dev Med Child Neurol 2019; 61(10): 1170–1176. https://doi.org/10.1111/dmcn.14150
11. Petkus KD, Noritz G, Glader L. Examining the role of sublingual Atropine for the treatment of sialorrhea in patients with neurodevelopmental disabilities: a retrospective review. J Clin Med 2023; 12(16): 5238. https://doi.org/10.3390/jcm12165238
12. Walshe M, Smith M, Pennington L. Interventions for drooling in children with cerebral palsy. Cochrane Database Syst Rev 2012; (11): CD008624.
https://doi.org/10.1002/14651858.CD008624.pub2
13. Phipps S, Lichter-Kelly L, Levetown M. Use of sublingual Atropine in pediatric palliative care: caregiver-reported benefits and tolerability. J Palliat Med 2021; 24(3): 345–351.
https://doi.org/10.1089/jpm.2020.0421
14. Lin YC, Chuang YC, Hsieh YL, Chang YT. Efficacy and safety of sublingual Atropine for drooling in neurologically impaired children. Clin Drug Investig 2020; 40(9): 873–880.
https://doi.org/10.1007/s40261-020-00937-7
15. Davis E, Tang J, O’Connor M. Caregiver-centered outcomes in the management of pediatric sialorrhea using sublingual Atropine. Child Care Health Dev 2023; 49(1): 72–79.
https://doi.org/10.1111/cch.13049
16. Norderyd J, Sundelin C, Faivre J, Dahllöf G. Sublingual Atropine for drooling in children with disabilities: a randomized double-blind placebo-controlled crossover trial. Dev Med Child Neurol 2017; 59(9): 978–983.
https://doi.org/10.1111/dmcn.13468
17. Park JH, Lee JY, Kim SH, Shin YB. Effectiveness of sublingual Atropine for drooling in pediatric stroke patients: a randomized placebo-controlled trial. Pediatr Neurol 2024; 150: 10–16.
https://doi.org/10.1016/j.pediatrneurol.2024.02.004
18. Heine RG, Jaeger M, Smith T, Wilmot C. Use of sublingual Atropine in children with sialorrhea: a retrospective review. J Paediatr Child Health 2017; 53(3): 295–299.
https://doi.org/10.1111/jpc.13408
19. Parrot M, Yathavan B, Averin O, et al. Clinical pharmacokinetics of Atropine oral gel formulation in healthy volunteers. Clin Transl Sci 2024; 17(3): e13753.
https://doi.org/10.1111/cts.13753
20. Ashraf S, Alam K, Siddiqui R, Ahmed R. Management of sialorrhea in cerebral palsy with oral glycopyrrolate: experience from a tertiary care center in Pakistan. Pak J Med Sci 2019; 35(1): 112–116. https://doi.org/10.12669/pjms.35.1.202
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