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European Journal of Clinical Pharmacology

, Volume 73, Issue 7, pp 837–842 | Cite as

Association between CACNA1C gene polymorphisms and ritodrine-induced adverse events in preterm labor patients

  • Min Young Baek
  • Han Sung Hwang
  • Jin Young Park
  • Jee Eun Chung
  • Kyung Eun Lee
  • Gwan Yung Lee
  • Jin Won Seong
  • Jeong Yee
  • Young Ju KimEmail author
  • Hye Sun GwakEmail author
Pharmacogenetics

Abstract

Purpose

As a tocolytic agent, ritodrine has been used in European and Asian countries but has lost popularity due to safety concerns. This study aimed to investigate the relationship between adverse drug events caused by ritodrine and the CACNA1C polymorphisms in preterm labor patients.

Methods

Data were collected from medical records including maternal age, gestational age, body mass index, dilation score, effacement score, modified Bishop score, maximum infusion rate, and adverse drug events. Five single-nucleotide polymorphisms of the CACNA1C gene (rs10774053, rs215994, rs215976, rs2239128, and rs2041135) were analyzed.

Results

One hundred eighty-six patients were included, 33 of whom had adverse drug events. A allele carriers of rs10774053 showed about 0.293-fold lower adverse drug events than GG genotype carriers (p = 0.012, absolute risk reduction = 16.5%) after adjusting for other confounding variables; the number needed to genotype for preventing one patient with GG genotype from suffering higher incidence of adverse drug events was calculated to be 14.6. Increase in maximum infusion rate of 1 mL/h was associated with a 1.03-fold (95% CI 1.01~1.06, p = 0.005) increased risk of adverse drug events. None of the patients with a CC genotype of rs215994 had adverse drug events, whereas 22.1% of the T allele carriers had adverse drug events.

Conclusion

This study showed that CACNA1C gene polymorphisms could alter the probability of adverse drug event risk when ritodrine is used in preterm labor.

Keywords

Ritodrine CACNA1C Polymorphism Adverse drug events Preterm labor patients 

Notes

Compliance with ethical standards

Funding

This work was supported by a grant from the Korea Health Industry Development Institute (KHIDI) (No. HI14C0306), funded by the Ministry of Health and Welfare, Republic of Korea.

Conflict of interest

The authors declare that they have no conflict of interest.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2017

Authors and Affiliations

  1. 1.College of Pharmacy & Division of Life and Pharmaceutical SciencesEwha Womans UniversitySeoulRepublic of Korea
  2. 2.Department of Obstetrics and Gynecology, Konkuk University Medical CenterKonkuk University School of MedicineSeoulRepublic of Korea
  3. 3.College of PharmacySungkyunkwan UniversitySuwon-siRepublic of Korea
  4. 4.College of PharmacyChungbuk National UniversityCheongjuRepublic of Korea
  5. 5.Department of Obstetrics and GynecologyEwha Womans University School of MedicineSeoulRepublic of Korea

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