Safety and efficacy of a lipid emulsion containing a mixture of soybean oil, medium-chain triglycerides, olive oil, and fish oil: a randomised, double-blind clinical trial in premature infants requiring parenteral nutrition.
OBJECTIVE
Safety, tolerability, and efficacy of a novel lipid emulsion containing a mixture of soybean oil, medium-chain triglycerides, olive oil, and fish oil (SMOFlipid 20%) with reduced n-6 fatty acids (FA), increased monounsaturated and n-3 FA, and enriched in vitamin E were evaluated in premature infants compared with a soybean oil-based emulsion.


METHODS
Sixty (30/30) premature neonates (age 3-7 days, gestational age ≤ 34 weeks, birth weights 1000-2500 g) received parenteral nutrition (PN) with either SMOFlipid 20% (study group) or a conventional lipid emulsion (Intralipid 20%, control group) for a minimum of 7 up to 14 days. Lipid supply started at 0.5 g · kg body weight(-1) · day(-1) on day 1 and increased stepwise (by 0.5 g) up to 2 g · kg body weight(-1) · day(-1) on days 4 to 14. Safety and efficacy parameters were assessed on days 0, 8, and 15 if PN was continued.


RESULTS
Adverse events, serum triglycerides, vital signs, local tolerance, and clinical laboratory did not show noticeable group differences, confirming the safety of study treatment. At study end, γ-glutamyl transferase was lower in the study versus the control group (107.8 ± 81.7 vs 188.8 ± 176.7 IU/L, P < 0.05). The relative increase in body weight (day 8 vs baseline) was 5.0% ± 6.5% versus 5.1% ± 6.6% (study vs control, not significant). In the study group, an increase in n-3 FA in red blood cell phospholipids and n-3:n-6 FA ratio was observed. Plasma α-tocopherol (study vs control) was increased versus baseline on day 8 (26.35 ± 10.03 vs 3.67 ± 8.06 μmol/L, P < 0.05) and at study termination (26.97 ± 18.32 vs 8.73 ± 11.41 μmol/L, P < 0.05).


CONCLUSIONS
Parenteral infusion of SMOFlipid was safe and well tolerated and showed a potential beneficial influence on cholestasis, n-3 FA, and vitamin E status in premature infants requiring PN.
2nd Department of Paediatrics, Semmelweis University, Budapest, Hungary. tomeri2@gyer2.sote.hu
Erika
E
Tomsits
Margit
M
Pataki
Andrea
A
Tölgyesi
György
G
Fekete
Katalin
K
Rischak
Lajos
L
Szollár
D001835:Body Weight / Q000187:drug effects; D004311:Double-Blind Method; D005217:Fat Emulsions, Intravenous / Q000009:adverse effects / Q000627:therapeutic use*; D005395:Fish Oils / Q000008:administration & dosage / Q000627:therapeutic use*; D006801:Humans; D007227:Infant Nutritional Physiological Phenomena; D007231:Infant, Newborn; D007234:Infant, Premature; D000069463:Olive Oil; D010288:Parenteral Nutrition / Q000379:methods; D010938:Plant Oils / Q000008:administration & dosage / Q000627:therapeutic use*; D013024:Soybean Oil / Q000008:administration & dosage / Q000627:therapeutic use*; D013851:Thinness / Q000188:drug therapy*; D016896:Treatment Outcome; D014280:Triglycerides / Q000008:administration & dosage / Q000627:therapeutic use*; D015430:Weight Gain / Q000187:drug effects
D005217:Fat Emulsions, Intravenous; D005395:Fish Oils; D000069463:Olive Oil; D010938:Plant Oils; D014280:Triglycerides; D013024:Soybean Oil