Pharmacokinetics in children
| Age mean (±SD) |
Weight (kg) mean (± SD) |
Cl (L/h/kg)b |
Vd (L/kg)c |
T1/2 (h) |
Reference |
| Adults |
|
|
|
3,5 |
SmPC Fraxiparine |
| Child(n=154a) 30 (27) mnd |
10 (5,5) |
0,037 |
0,355 |
6,5 |
Laporte 1999* |
| Infants and neonates (n=40) 58,4 (60,4) days; GA 35,2 (4,3) weeks |
3,7 (2) |
0,068 |
|
|
Chen 2024* |
a = All children had underlying congenital heart disease or coronary disease
b = Cl/F
c= Vd/F
* = Data derived from popPK model.
GA= gestational age
dose recommendation of formulary compared to licensed use (on-label versus off-label)
No information is present at this moment.
Available formulations
No information is present at this moment.
Dosages
| Treatment thromboembolism |
- Subcutaneous
-
1 month
up to
2 months
-
300
- 360
IU/kg/day
in 2
doses.
- Titrate the dose based on the concentrations. See warnings and precautions section.
-
2 months
up to
2 years
-
240
IU/kg/day
in 2
doses.
- Titrate the dose based on the concentrations. See warnings and precautions section.
-
2 years
up to
12 years
-
200
IU/kg/day
in 2
doses.
- Titrate the dose based on the concentrations. See warnings and precautions section.
-
12 years
up to
18 years
-
Preterm and
Term neonate
-
300
- 360
IU/kg/day
in 2
doses.
- Titrate the dose based on the concentrations. See warnings and precautions section.
-
Preterm and
Term neonate
[10]
[12]
[13]
-
300
- 360
IU/kg/day
in 2
doses.
- Titrate the dose based on the concentrations. See warnings and precautions section.
-
1 month
up to
2 months
[1]
[3]
[4]
[5]
[6]
[7]
[9]
[11]
[12]
[13]
[14]
-
300
- 360
IU/kg/day
in 2
doses.
- Titrate the dose based on the concentrations. See warnings and precautions section.
-
2 months
up to
2 years
[1]
[3]
[4]
[5]
[7]
-
240
IU/kg/day
in 2
doses.
- Titrate the dose based on the concentrations. See warnings and precautions section.
-
2 years
up to
12 years
[1]
[3]
[4]
[5]
[7]
-
200
IU/kg/day
in 2
doses.
- Titrate the dose based on the concentrations. See warnings and precautions section.
-
12 years
up to
18 years
[1]
[5]
[7]
|
Renal impaiment in children > 3 months
Deep venous thrombosis:
- GFR ≥50: dose adjustment is not necessary.
- GFR 30-50:dose adjustment is not necessary
- GFR 10-30: 1st dose 100% of normal single dose, then 75% of normal single dose, interval between doses: 12 hours; if used for more than 3 days, dose according to anti-Xa levels.
- GFR <10: general advice is not given.
Prophylaxis thromboembolic complications:
- GFR ≥10: dose adjustment is not required.
- GFR <10: general advice is not given.
Clinical consequences
With impaired renal function, clearance of low molecular weight heparins may be delayed. This cannot be fully predicted from creatinine clearance.
Clinical effects:
Bleeding.
The complete list of all undesirable drug reactions can be found in the national Summary of Product Characteristics (SmPC) – click here
Side effects
No information is present at this moment.
The complete list of all contra-indications can be found in the national Summary of Product Characteristics (SmPC) – click here
Contra-indications
No information available on specific contra indications in children.
The complete list of all warnings and precautions can be found in the national Summary of Product Characteristics (SmPC) – click here
Warnings & precautions in children
In principle, children under 12 years of age do not receive thrombosis prophylaxis unless they have had a thromboembolism in the past and/or if multiple risk factors for thrombosis are present.
6 mg protaminesulfaat neutralises approximately 950 IE anti-FXa nadroparine.
Anti-FXa levels and monitoring:
Anti-FXa level, measured 4 hours after dose, measure first anti-FXa after 3 doses.
Target anti-FXa level
therapeutic:
in BID dosing LMWH: 0.5 - 1.0 U / mL;
in once daily dosing LMWH: 1.0-2.0 U / mL;
prophylactic: 0.1-0.4 U / mL,
For COVID-19 patients admitted to the ICU: < 0,7 U / mL
> 40 kg: in general no anti-FXa monitoring necessary, except for sick children, co-medication and / or poor kidney function
After possible dose adjustment, it is not necessary to wait for 3 doses. This can be agreed in consultation with the local laboratory. When therapeutic level is reached, further monitoring is only necessary in neonates, severely ill patients, and patients during asparaginase use (due to decreasing antithrombin).
Interactions
The complete list of all interactions can be found in the national Summary of Product Characteristics (SmPC) – click here
ANTITHROMBOTIC AGENTS
This pages provides a list of drugs from the same ATC class for comparison. This does not necessarily mean that these drugs are interchangeable.
| Vitamin K antagonists |
|
|
|
B01AA07
|
|
|
|
B01AA04
|
| Heparin group |
|
|
|
B01AB04
|
|
|
|
B01AB09
|
|
|
|
B01AB05
|
|
|
|
B01AB01
|
|
|
|
B01AB10
|
| Platelet aggregation inhibitors excl. heparin |
|
|
|
B01AC06
|
|
|
|
B01AC04
|
|
|
|
B01AC09
|
| Enzymes |
|
|
|
B01AD02
|
|
|
|
B01AD01
|
|
|
|
B01AD04
|
| Direct thrombin inhibitors |
|
|
|
B01AE07
|
| Direct factor Xa inhibitors |
|
|
|
B01AF02
|
|
|
|
B01AF01
|
References
-
Ommen van CH, et al, Nadroparin Therapy in Pediatric Patients With Venous Thromboembolic Disease, J Pediatr Hematol Oncol, 2008, 30, 230234
-
M. Cnossen, Expertopinie sectie Benigne Hematologie profylaxe dosering , 14 jan 2014
-
CBO, Diagnostiek, preventie en behandeling van veneuze trombo-embolie en secundaire preventie van arteriële trombose, http://www.cbo.nl/thema/Richtlijnen/Overzicht-richtlijnen/, 2009, Geraadpleegd 09jun2010
-
NVK, Werkboek kinderhematologie, http://www.hematologienederland.nl/werkboek-kinderhematologie, 2014, Geraadpleegd 20-01-14
-
Klaassen ILM. et al, Are low-molecular-weight heparins safe and effective in children? A systematic review., Blood Rev, 2018, DOI: 10.1016/j.blre.2018.06.003
-
van Ommen, CH, Expert opinion Behandeling zuigelingen VTE Sectie Kinderhematologie - 29-04-2019
-
Nederlandse Vereniging voor Kindergeneeskunde, sectie kinderhematologie, Richtlijn Diagnostiek en behandeling van veneuze trombo-embolische complicaties bij neonaten en kinderen tot 18 jaar, https://hematologienederland.nl/kwaliteit/werkboek-kinderhematologie, 2020, jan, 1e revisie
-
NKFK Workinggroup Acute Kidney Impairment, Extrapolation of KNMP risk analysis "Impaired renal function" for adults to children, 20 Dec 2021
-
Dutch Pediatric Society, Guideline Neonatal central venous catheter trombosis, https://www.nvk.nl/themas/kwaliteit/richtlijnen/richtlijn?componentid=9207808, 2012
-
Laporte S, et al, Population pharmacokinetic of nadroparin calcium (Fraxiparine) in children hospitalised for open heart surgery.., Eur J Pharm Sci, 1999, 8(2):, 119-25
-
Mylan Healthcare B.V, SmPC Fraxiparine (RVG 11878) 15-01-2024, www.geneesmiddelinformatiebank.nl
-
Chen Y., Is the current therapeutic dosage of nadroparin adequate for neonates and infants under 8 months with thromboembolic disease? a population pharmacokinetic study from a national children's medical center. , Front Pharmacol, 2024, 15, 1331673
-
Sol J, et al., Effectiveness and Safety of Nadroparin Therapy in Preterm and Term Neonates with Venous Thromboembolism. , J Clin Med, 2021, 10(7)., 1483
-
Dutch Pediatric Society, Richtlijn Perinatal stroke, https://www.nvk.nl/themas/kwaliteit/richtlijnen/richtlijn?componentid=6881311, 2011
-
M. Cnossen, Expertopinie sectie Benigne Hematologie profylaxe dosering, 14 jan 2014
-
Chen Y., Is the current therapeutic dosage of nadroparin adequate for neonates and infants under 8 months with thromboembolic disease? a population pharmacokinetic study from a national children's medical center., Front Pharmacol, 2024, 15, 1331673
-
Sol J, et al., Effectiveness and Safety of Nadroparin Therapy in Preterm and Term Neonates with Venous Thromboembolism., J Clin Med, 2021, 10(7)., 1483
Therapeutic Drug Monitoring
Overdose