A Pharmacokinetic and Dosing Study of Intravenous Insulin-Like Growth Factor-I and IGF-Binding Protein-3 Complex to Preterm Infants.
(2009) In Pediatric Research 65. p.574-579- Abstract
- In preterm infants, low levels of Insulin like growth factor 1 (IGF-I) have been associated with impaired growth and retinopathy of prematurity. Our objective was to study safety and pharmacokinetics of intravenously administered rhIGF-I with its binding protein 3 (rhIGFBP-3) to preterm infants. At 3 days chronological age, an intravenous 3 hours infusion of rhIGF-I/rhIGFBP-3 was administered followed by serial measurements of IGF-I and IGFBP-3. Infants were evaluated for physiological safety measurements. The individual dose of rhIGF-I ranged from 1 to 12 mug/kg. The study was conducted at Queen Silvia Children's Hospital, Gothenburg, Sweden, between January and November 2007. Five patients (3F) with mean (range) PMA 27 weeks (26-29) and... (More)
- In preterm infants, low levels of Insulin like growth factor 1 (IGF-I) have been associated with impaired growth and retinopathy of prematurity. Our objective was to study safety and pharmacokinetics of intravenously administered rhIGF-I with its binding protein 3 (rhIGFBP-3) to preterm infants. At 3 days chronological age, an intravenous 3 hours infusion of rhIGF-I/rhIGFBP-3 was administered followed by serial measurements of IGF-I and IGFBP-3. Infants were evaluated for physiological safety measurements. The individual dose of rhIGF-I ranged from 1 to 12 mug/kg. The study was conducted at Queen Silvia Children's Hospital, Gothenburg, Sweden, between January and November 2007. Five patients (3F) with mean (range) PMA 27 weeks (26-29) and birth weight 1022 grams (810-1310) participated. IGF-I and IGFBP-3 levels before infusion were median (range) 18 (12-28) and 771 (651-1047) ng/ml, respectively. Immediately after study drug infusion, serum IGF-I and IGFBP-3 levels were 38 (25-59) and 838 (754-1182) ng/ml, respectively. Median (range) half-life for IGF-I and IGFBP-3 was 0.79 (0.59-1.42) and 0.87 (0.85-0.94) hours, respectively. Blood glucose, insulin, sodium, potassium and physiological safety measures were within normal ranges. The rhIGF-I/rhIGFBP-3 equimolar proportion was effective in increasing serum IGF-I levels and administration under these study conditions was safe and well tolerated. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/1302918
- author
- Löfqvist, Chatarina ; Niklasson, Aimon ; Engström, Eva ; Friberg, Lena ; Camacho-Hübner, Cecilia ; Ley, David LU ; Borg, Jan ; Smith, Lois and Hellström, Ann LU
- organization
- publishing date
- 2009
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Pediatric Research
- volume
- 65
- pages
- 574 - 579
- publisher
- International Pediatric Foundation Inc.
- external identifiers
-
- wos:000265448700017
- pmid:19190540
- scopus:69049098085
- pmid:19190540
- ISSN
- 1530-0447
- DOI
- 10.1203/PDR.0b013e31819d9e8c
- language
- English
- LU publication?
- yes
- id
- 0d2a1648-ffa0-48da-adaf-6976cec1aefa (old id 1302918)
- alternative location
- http://www.ncbi.nlm.nih.gov/pubmed/19190540?dopt=Abstract
- date added to LUP
- 2016-04-04 07:12:31
- date last changed
- 2022-03-07 20:03:21
@article{0d2a1648-ffa0-48da-adaf-6976cec1aefa, abstract = {{In preterm infants, low levels of Insulin like growth factor 1 (IGF-I) have been associated with impaired growth and retinopathy of prematurity. Our objective was to study safety and pharmacokinetics of intravenously administered rhIGF-I with its binding protein 3 (rhIGFBP-3) to preterm infants. At 3 days chronological age, an intravenous 3 hours infusion of rhIGF-I/rhIGFBP-3 was administered followed by serial measurements of IGF-I and IGFBP-3. Infants were evaluated for physiological safety measurements. The individual dose of rhIGF-I ranged from 1 to 12 mug/kg. The study was conducted at Queen Silvia Children's Hospital, Gothenburg, Sweden, between January and November 2007. Five patients (3F) with mean (range) PMA 27 weeks (26-29) and birth weight 1022 grams (810-1310) participated. IGF-I and IGFBP-3 levels before infusion were median (range) 18 (12-28) and 771 (651-1047) ng/ml, respectively. Immediately after study drug infusion, serum IGF-I and IGFBP-3 levels were 38 (25-59) and 838 (754-1182) ng/ml, respectively. Median (range) half-life for IGF-I and IGFBP-3 was 0.79 (0.59-1.42) and 0.87 (0.85-0.94) hours, respectively. Blood glucose, insulin, sodium, potassium and physiological safety measures were within normal ranges. The rhIGF-I/rhIGFBP-3 equimolar proportion was effective in increasing serum IGF-I levels and administration under these study conditions was safe and well tolerated.}}, author = {{Löfqvist, Chatarina and Niklasson, Aimon and Engström, Eva and Friberg, Lena and Camacho-Hübner, Cecilia and Ley, David and Borg, Jan and Smith, Lois and Hellström, Ann}}, issn = {{1530-0447}}, language = {{eng}}, pages = {{574--579}}, publisher = {{International Pediatric Foundation Inc.}}, series = {{Pediatric Research}}, title = {{A Pharmacokinetic and Dosing Study of Intravenous Insulin-Like Growth Factor-I and IGF-Binding Protein-3 Complex to Preterm Infants.}}, url = {{http://dx.doi.org/10.1203/PDR.0b013e31819d9e8c}}, doi = {{10.1203/PDR.0b013e31819d9e8c}}, volume = {{65}}, year = {{2009}}, }