Evaluating the effect of ursodeoxycholic acid on total bilirubin of neonates with glucose-6-phosphate dehydrogenase deficiency complicated by indirect hyperbilirubinaemia

An evaluation of ursodeoxycholic acid treatment in prolonged unconjugated hyperbilirubinemia due to breast milk

Background/Aim

Prolonged jaundice is one of the most common problems during neonatal period. The aim of this study was to evaluate the efficiency of ursodeoxycholic acid (UDCA) treatment in newborn infants with prolonged unconjugated hyperbilirubinemia.

Materials and Methods

The present study included 27 patients who were fed by breast milk and followed up in the outpatient clinic due to prolonged jaundice without any underlying etiological factor; 10 mg/kg/day UDCA was administrated in two doses for 7 days. Furthermore, 20 newborns diagnosed with prolonged jaundice with same characteristics were enrolled as the control group. The control group was also given a placebo; demographic characteristics, liver functions tests before and after the treatment, bilirubin decrease rates, and hemogram parameters of groups were compared.

Results

Total bilirubin levels in the study and control groups before the treatment were 16.02 ± 1.41 mg/dL and 15.93 ± 1.66 mg/dL, respectively (P = 0.84). Total bilirubin levels in the study and control groups at day 7 after UDCA treatment were detected 8.18 ± 2.31 mg/dL and 13.92 ± 2.66 mg/dL, respectively (P < 0.001), and at day 14 after the treatment were 5.45 ± 2.59 mg/dL and 11.91 ± 2.83 mg/dL, respectively (P < 0.001). Furthermore, serum aspartate aminotransferase (AST) was detected <21 U/L in the ROC analysis after UDCA treatment (P = 0.04).

Conclusion

The study outcomes indicated that an efficient reduction in total bilirubin levels may be achieved, and outpatient clinic follow-up period may be reduced in patients whom UDCA was administrated. Moreover, it may be speculated that AST can be used to evaluate the efficacy after treatment. However, studies with larger sample sizes are needed for the routine use of UDCA in the treatment of prolonged jaundice.

Effects of Two Different Doses of Ursodeoxycholic Acid on Indirect Hyperbilirubinemia in Neonates with Glucose-6-phosphate Dehydrogenase Deficiency Treated with Phototherapy: A Randomized Controlled Trial

Glucose-6-phosphate dehydrogenase (G6PD) deficiency is one of the causes of severe hyperbilirubinemia, prolonged jaundice, and bilirubin-induced encephalopathy in neonates. In a randomized controlled trial, we evaluated the effect of oral ursodeoxycholic acid (UDCA) on indirect hyperbilirubinemia in G6PD-deficient neonates requiring phototherapy. Intervention group I (N = 45; received phototherapy and 10 mg/kg/day UDCA), Intervention group II (N = 40; received phototherapy and 20 mg/kg/day UDCA), and a control group (N = 49; received phototherapy and placebo). Levels of total serum bilirubin (TSB) in all 3 groups decreased significantly over time (P = .001) but the level of TSB at different hours after admission and the duration of phototherapy did not differ significantly between the 3 groups. After discharge, the 2 intervention groups had a significantly lower rate of readmission than the control group (P = .001). No significant difference was observed between the 10 and 20 mg/kg/day groups. Further evaluation is recommended, especially in terms of the pharmacokinetics of UDCA in neonates. Trial registration number: IRCT20091201002801N4, prospectively registered on 2019-06-1.

Ursodeoxycholic acid use in lactating female patients is associated with clinically negligible concentrations of this bile acid in breast milk

In the literature on the safety of ursodeoxycholic acid (UDCA) during breastfeeding, insufficient data has been reported to date. Thus, the aim of our study was to analyze bile acid (BA) concentrations in breast milk in a cohort of patients, treated with UDCA, and with various cholestatic liver diseases. The study was carried out on a cohort of 20 patients with various cholestatic diseases. All the patients were treated with UDCA (500-1500 mg daily). Concentrations of BA, sampled on day 3 after delivery were analyzed using the GS-MS technique, and then compared to untreated women. Total BA concentrations in the breast milk of the UDCA-treated patients were equal to those of the untreated women controls (3.2 ± 1 vs. 3.2 ± 0.2 µmol/L, respectively). The UDCA concentrations in breast milk remained negligible in UDCA-treated patients (0.69 µmol/L), and in any event did not contribute to the newborn BA pool. No apparent side-effects of the maternal UDCA treatment were observed in any newborn infant, and no deterioration in postnatal development was observed during the routine 1-year follow-ups. Therapeutic administration of UDCA during lactation is safe for breastfed babies since UDCA only gets into breast milk in negligible amounts. UDCA treatment should be allowed and included into the guidelines for the therapy of cholestatic diseases in breastfeeding mothers.

Ursodeoxycholic acid as adjuvant treatment to phototherapy for neonatal hyperbilirubinemia: a systematic review and meta-analysis

BACKGROUND

Neonatal hyperbilirubinemia is observed in most newborns, and 5-15% of neonates require phototherapy. Phototherapy is effective but often prolongs hospitalization and has both short-term and potential long-term harms. The aim of this systematic review and meta-analysis was to evaluate the role of ursodeoxycholic acid (UDCA) combined with phototherapy in neonatal hyperbilirubinemia.

METHODS

A literature search was conducted on September 1, 2021; 590 studies were screened, and 17 full texts were assessed by two authors. We included randomized controlled trials with or without placebo intervention. Primary outcomes were changes in total bilirubin levels at 24 hours and phototherapy duration. We calculated mean differences with 95% confidence intervals (CI).

RESULTS

Six studies with 880 neonates were included. Of these studies, only two used a placebo-controlled double-blinded design. The overall risk of bias was high in one and moderate in four of the included studies. The mean decrease in the total bilirubin level during the first 24 hours was 2.06 mg/dL (95% CI 0.82-3.30; six studies) greater in the UDCA treatment group. The phototherapy duration was 19.7 hours (95% CI 10.4-29.1; five studies) shorter in the UDCA treatment group.

CONCLUSIONS

We found low-quality evidence that UDCA as an adjuvant to phototherapy seems to decrease total bilirubin faster and shorten phototherapy duration compared to standard treatment. Further studies are needed to confirm the efficacy, acute and long-term outcomes, and safety before implementing UDCA as an adjuvant to phototherapy in neonatal hyperbilirubinemia.