Clinical trial of insulin-like growth factor-1 in Phelan-McDermid syndrome / A. KOLEVZON in Molecular Autism, 13 (2022)  

Public ISBD [article]  inMolecular Autism > 13 (2022) . - 17 p. Titre : Clinical trial of insulin-like growth factor-1 in Phelan-McDermid syndrome Type de document : Texte imprimé et/ou numérique Auteurs : A. KOLEVZON, Auteur ; M. S. BREEN, Auteur ; P. M. SIPER, Auteur ; Danielle B. HALPERN, Auteur ; Y. FRANK, Auteur ; H. RIEGER, Auteur ; J. WEISMANN, Auteur ; M. P. TRELLES, Auteur ; B. LERMAN, Auteur ; R. RAPAPORT, Auteur ; J. D. BUXBAUM, Auteur Article en page(s) : 17 p. Langues : Anglais (eng) Mots-clés : Child  Chromosome Deletion  Chromosome Disorders/drug therapy/genetics  Chromosomes, Human, Pair 22  Humans  Insulin-Like Growth Factor I/therapeutic use  Pilot Projects  Asd  Autism spectrum disorder  Igf-1  Insulin-like growth factor-1  Pms  Phelan-McDermid syndrome  shank3 Index. décimale : PER Périodiques Résumé : BACKGROUND: Phelan-McDermid syndrome (PMS) is caused by haploinsufficiency of the SHANK3 gene and is characterized by global developmental delays and autism spectrum disorder (ASD). Based on several converging lines of preclinical and clinical evidence supporting the use of insulin-like growth factor-1 (IGF-1) in PMS, this study aims to follow-up a previous pilot study with IGF-1 to further evaluate this novel therapeutic for core symptoms of ASD in children with PMS. METHODS: Ten children aged 5-9 with PMS were enrolled. Participants were randomized to receive IGF-1 or placebo (saline) using a 12-week, double-blind, crossover design. Efficacy was assessed using the primary outcome of the Aberrant Behavior Checklist-Social Withdrawal (ABC-SW) subscale as well as secondary outcome measures reflecting core symptoms of ASD. To increase power and sample size, we jointly analyzed the effect of IGF-1 reported here together with results from our previous controlled trail of IGF-1 in children with PMS (combined N=19). RESULTS: Results on the ABC-SW did not reach statistical significance, however significant improvements in sensory reactivity symptoms were observed. In our pooled analyses, IGF-1 treatment also led to significant improvements in repetitive behaviors and hyperactivity. There were no other statistically significant effects seen across other clinical outcome measures. IGF-1 was well tolerated and there were no serious adverse events. LIMITATIONS: The small sample size and expectancy bias due to relying on parent reported outcome measures may contribute to limitations in interpreting results. CONCLUSION: IGF-1 is efficacious in improving sensory reactivity symptoms, repetitive behaviors, and hyperactivity in children with PMS. Trial registration NCT01525901. En ligne : http://dx.doi.org/10.1186/s13229-022-00493-7 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=477 [article] Clinical trial of insulin-like growth factor-1 in Phelan-McDermid syndrome [Texte imprimé et/ou numérique] / A. KOLEVZON, Auteur ; M. S. BREEN, Auteur ; P. M. SIPER, Auteur ; Danielle B. HALPERN, Auteur ; Y. FRANK, Auteur ; H. RIEGER, Auteur ; J. WEISMANN, Auteur ; M. P. TRELLES, Auteur ; B. LERMAN, Auteur ; R. RAPAPORT, Auteur ; J. D. BUXBAUM, Auteur . - 17 p. Langues : Anglais (eng) in Molecular Autism > 13 (2022) . - 17 p. Mots-clés : Child  Chromosome Deletion  Chromosome Disorders/drug therapy/genetics  Chromosomes, Human, Pair 22  Humans  Insulin-Like Growth Factor I/therapeutic use  Pilot Projects  Asd  Autism spectrum disorder  Igf-1  Insulin-like growth factor-1  Pms  Phelan-McDermid syndrome  shank3 Index. décimale : PER Périodiques Résumé : BACKGROUND: Phelan-McDermid syndrome (PMS) is caused by haploinsufficiency of the SHANK3 gene and is characterized by global developmental delays and autism spectrum disorder (ASD). Based on several converging lines of preclinical and clinical evidence supporting the use of insulin-like growth factor-1 (IGF-1) in PMS, this study aims to follow-up a previous pilot study with IGF-1 to further evaluate this novel therapeutic for core symptoms of ASD in children with PMS. METHODS: Ten children aged 5-9 with PMS were enrolled. Participants were randomized to receive IGF-1 or placebo (saline) using a 12-week, double-blind, crossover design. Efficacy was assessed using the primary outcome of the Aberrant Behavior Checklist-Social Withdrawal (ABC-SW) subscale as well as secondary outcome measures reflecting core symptoms of ASD. To increase power and sample size, we jointly analyzed the effect of IGF-1 reported here together with results from our previous controlled trail of IGF-1 in children with PMS (combined N=19). RESULTS: Results on the ABC-SW did not reach statistical significance, however significant improvements in sensory reactivity symptoms were observed. In our pooled analyses, IGF-1 treatment also led to significant improvements in repetitive behaviors and hyperactivity. There were no other statistically significant effects seen across other clinical outcome measures. IGF-1 was well tolerated and there were no serious adverse events. LIMITATIONS: The small sample size and expectancy bias due to relying on parent reported outcome measures may contribute to limitations in interpreting results. CONCLUSION: IGF-1 is efficacious in improving sensory reactivity symptoms, repetitive behaviors, and hyperactivity in children with PMS. Trial registration NCT01525901. En ligne : http://dx.doi.org/10.1186/s13229-022-00493-7 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=477

Phelan-McDermid syndrome: a review of the literature and practice parameters for medical assessment and monitoring / A. KOLEVZON in Journal of Neurodevelopmental Disorders, 6-1 (December 2014)  

Public ISBD [article]  inJournal of Neurodevelopmental Disorders > 6-1 (December 2014) . - p.39 Titre : Phelan-McDermid syndrome: a review of the literature and practice parameters for medical assessment and monitoring Type de document : Texte imprimé et/ou numérique Auteurs : A. KOLEVZON, Auteur ; Benjamin ANGARITA, Auteur ; L. BUSH, Auteur ; A. Ting WANG, Auteur ; Y. FRANK, Auteur ; A. YANG, Auteur ; R. RAPAPORT, Auteur ; J. SALAND, Auteur ; S. SRIVASTAVA, Auteur ; C. FARRELL, Auteur ; L. J. EDELMANN, Auteur ; Joseph D. BUXBAUM, Auteur Article en page(s) : p.39 Langues : Anglais (eng) Mots-clés : 22q13 deletion syndrome  Autism  Autism spectrum disorder  Neurodevelopmental disorders  Phelan-McDermid syndrome  Practice parameters  Shank3 Index. décimale : PER Périodiques Résumé : Autism spectrum disorder (ASD) and intellectual disability (ID) can be caused by mutations in a large number of genes. One example is SHANK3 on the terminal end of chromosome 22q. Loss of one functional copy of SHANK3 results in 22q13 deletion syndrome or Phelan-McDermid syndrome (PMS) and causes a monogenic form of ASD and/or ID with a frequency of 0.5% to 2% of cases. SHANK3 is the critical gene in this syndrome, and its loss results in disruption of synaptic function. With chromosomal microarray analyses now a standard of care in the assessment of ASD and developmental delay, and with the emergence of whole exome and whole genome sequencing in this context, identification of PMS in routine clinical settings will increase significantly. However, PMS remains a rare disorder, and the majority of physicians have never seen a case. While there is agreement about core deficits of PMS, there have been no established parameters to guide evaluation and medical monitoring of the syndrome. Evaluations must include a thorough history and physical and dysmorphology examination. Neurological deficits, including the presence of seizures and structural brain abnormalities should be assessed as well as motor deficits. Endocrine, renal, cardiac, and gastrointestinal problems all require assessment and monitoring in addition to the risk of recurring infections, dental and vision problems, and lymphedema. Finally, all patients should have cognitive, behavioral, and ASD evaluations. The objective of this paper is to address this gap in the literature and establish recommendations to assess the medical, genetic, and neurological features of PMS. En ligne : http://dx.doi.org/10.1186/1866-1955-6-39 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=347 [article] Phelan-McDermid syndrome: a review of the literature and practice parameters for medical assessment and monitoring [Texte imprimé et/ou numérique] / A. KOLEVZON, Auteur ; Benjamin ANGARITA, Auteur ; L. BUSH, Auteur ; A. Ting WANG, Auteur ; Y. FRANK, Auteur ; A. YANG, Auteur ; R. RAPAPORT, Auteur ; J. SALAND, Auteur ; S. SRIVASTAVA, Auteur ; C. FARRELL, Auteur ; L. J. EDELMANN, Auteur ; Joseph D. BUXBAUM, Auteur . - p.39. Langues : Anglais (eng) in Journal of Neurodevelopmental Disorders > 6-1 (December 2014) . - p.39 Mots-clés : 22q13 deletion syndrome  Autism  Autism spectrum disorder  Neurodevelopmental disorders  Phelan-McDermid syndrome  Practice parameters  Shank3 Index. décimale : PER Périodiques Résumé : Autism spectrum disorder (ASD) and intellectual disability (ID) can be caused by mutations in a large number of genes. One example is SHANK3 on the terminal end of chromosome 22q. Loss of one functional copy of SHANK3 results in 22q13 deletion syndrome or Phelan-McDermid syndrome (PMS) and causes a monogenic form of ASD and/or ID with a frequency of 0.5% to 2% of cases. SHANK3 is the critical gene in this syndrome, and its loss results in disruption of synaptic function. With chromosomal microarray analyses now a standard of care in the assessment of ASD and developmental delay, and with the emergence of whole exome and whole genome sequencing in this context, identification of PMS in routine clinical settings will increase significantly. However, PMS remains a rare disorder, and the majority of physicians have never seen a case. While there is agreement about core deficits of PMS, there have been no established parameters to guide evaluation and medical monitoring of the syndrome. Evaluations must include a thorough history and physical and dysmorphology examination. Neurological deficits, including the presence of seizures and structural brain abnormalities should be assessed as well as motor deficits. Endocrine, renal, cardiac, and gastrointestinal problems all require assessment and monitoring in addition to the risk of recurring infections, dental and vision problems, and lymphedema. Finally, all patients should have cognitive, behavioral, and ASD evaluations. The objective of this paper is to address this gap in the literature and establish recommendations to assess the medical, genetic, and neurological features of PMS. En ligne : http://dx.doi.org/10.1186/1866-1955-6-39 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=347

A proof-of-concept study of growth hormone in children with Phelan-McDermid syndrome / S. SETHURAM in Molecular Autism, 13 (2022)  

Public ISBD [article]  inMolecular Autism > 13 (2022) . - 6p. Titre : A proof-of-concept study of growth hormone in children with Phelan-McDermid syndrome Type de document : Texte imprimé et/ou numérique Auteurs : S. SETHURAM, Auteur ; T. LEVY, Auteur ; J. FOSS-FEIG, Auteur ; Danielle B. HALPERN, Auteur ; S. SANDIN, Auteur ; P. M. SIPER, Auteur ; H. WALKER, Auteur ; Joseph D. BUXBAUM, Auteur ; R. RAPAPORT, Auteur ; A. KOLEVZON, Auteur Article en page(s) : 6p. Langues : Anglais (eng) Mots-clés : Asd  Autism spectrum disorder  Growth hormone  Igf-1  Insulin-like growth factor-1  Pms  Phelan–McDermid syndrome  Shank3  Jaguar, Neuren, GW Pharma, and Ovid Therapeutics. JDB has a shared patent with Mount  Sinai for IGF-1 in Phelan–McDermid syndrome. No other authors have competing  interests to disclose. Index. décimale : PER Périodiques Résumé : BACKGROUND: Phelan-McDermid syndrome (PMS) is caused by 22q13 deletions including SHANK3 or pathogenic sequence variants in SHANK3 and is among the more common rare genetic findings in autism spectrum disorder (ASD). SHANK3 is critical for synaptic function, and preclinical and clinical studies suggest that insulin-like growth factor-1 (IGF-1) can reverse a range of deficits in PMS. IGF-1 release is stimulated by growth hormone secretion from the anterior pituitary gland, and this study sought to assess the feasibility of increasing IGF-1 levels through recombinant human growth hormone (rhGH) treatment, in addition to establishing safety and exploring efficacy of rhGH in children with PMS. METHODS: rhGH was administered once daily for 12 weeks to six children with PMS using an open-label design. IGF-1 levels, safety, and efficacy assessments were measured every 4 weeks throughout the study. RESULTS: rhGH administration increased levels of IGF-1 by at least 2 standard deviations and was well tolerated without serious adverse events. rhGH treatment was also associated with clinical improvement in social withdrawal, hyperactivity, and sensory symptoms. LIMITATIONS: Results should be interpreted with caution given the small sample size and lack of a placebo control. CONCLUSIONS: Overall, findings are promising and indicate the need for larger studies with rhGH in PMS. Trial registration NCT04003207. Registered July 1, 2019, https://clinicaltrials.gov/ct2/show/NCT04003207 . En ligne : http://dx.doi.org/10.1186/s13229-022-00485-7 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=459 [article] A proof-of-concept study of growth hormone in children with Phelan-McDermid syndrome [Texte imprimé et/ou numérique] / S. SETHURAM, Auteur ; T. LEVY, Auteur ; J. FOSS-FEIG, Auteur ; Danielle B. HALPERN, Auteur ; S. SANDIN, Auteur ; P. M. SIPER, Auteur ; H. WALKER, Auteur ; Joseph D. BUXBAUM, Auteur ; R. RAPAPORT, Auteur ; A. KOLEVZON, Auteur . - 6p. Langues : Anglais (eng) in Molecular Autism > 13 (2022) . - 6p. Mots-clés : Asd  Autism spectrum disorder  Growth hormone  Igf-1  Insulin-like growth factor-1  Pms  Phelan–McDermid syndrome  Shank3  Jaguar, Neuren, GW Pharma, and Ovid Therapeutics. JDB has a shared patent with Mount  Sinai for IGF-1 in Phelan–McDermid syndrome. No other authors have competing  interests to disclose. Index. décimale : PER Périodiques Résumé : BACKGROUND: Phelan-McDermid syndrome (PMS) is caused by 22q13 deletions including SHANK3 or pathogenic sequence variants in SHANK3 and is among the more common rare genetic findings in autism spectrum disorder (ASD). SHANK3 is critical for synaptic function, and preclinical and clinical studies suggest that insulin-like growth factor-1 (IGF-1) can reverse a range of deficits in PMS. IGF-1 release is stimulated by growth hormone secretion from the anterior pituitary gland, and this study sought to assess the feasibility of increasing IGF-1 levels through recombinant human growth hormone (rhGH) treatment, in addition to establishing safety and exploring efficacy of rhGH in children with PMS. METHODS: rhGH was administered once daily for 12 weeks to six children with PMS using an open-label design. IGF-1 levels, safety, and efficacy assessments were measured every 4 weeks throughout the study. RESULTS: rhGH administration increased levels of IGF-1 by at least 2 standard deviations and was well tolerated without serious adverse events. rhGH treatment was also associated with clinical improvement in social withdrawal, hyperactivity, and sensory symptoms. LIMITATIONS: Results should be interpreted with caution given the small sample size and lack of a placebo control. CONCLUSIONS: Overall, findings are promising and indicate the need for larger studies with rhGH in PMS. Trial registration NCT04003207. Registered July 1, 2019, https://clinicaltrials.gov/ct2/show/NCT04003207 . En ligne : http://dx.doi.org/10.1186/s13229-022-00485-7 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=459

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