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Abstract
During pregnancy, there are several physiological changes during each trimester that can affect the absorption, distribution, metabolism, and elimination of drugs. Although there is a potential need to understand the pharmacokinetics and pharmacodynamics of drugs in pregnant patients, therapeutic drug monitoring is not well established for various drug classes due to ethical and safety concerns regarding the neonate. Potential risks from in utero drug exposure to the fetus may impact growth and development and may cause malformations or teratogenesis. The clinician must consider the benefits of drug treatment for the pregnant mother versus the risk to the fetus, before prescribing medications during pregnancy. The objective of this review is to aid clinicians, pharmacists, and laboratorians in understanding the pharmacokinetic and pharmacodynamic changes during pregnancy, to provide drug class recommendations for monitoring therapy throughout pregnancy via therapeutic drug monitoring, and to highlight the recent directives of governing agencies on maternal and fetal health.
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Comprehensive Measurements of Intrauterine and Postnatal Exposure to Lamotrigine. Clin Pharmacokinet 2020; 58:535-543. [PMID: 30255309 DOI: 10.1007/s40262-018-0713-y] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
OBJECTIVE The aim of this study was to measure and investigate correlations of lamotrigine concentrations in maternal as well as umbilical cord blood, amniotic fluid, and breast milk to account for the distribution of the drug. METHODS Concentrations of lamotrigine were measured in 19 mother-infant pairs at the time of delivery. To account for the penetration ratio into amniotic fluid, cord blood and breast milk, the concentration of lamotrigine in the particular environment was divided by the concentration in maternal serum. A no-intercept model was applied for associations between maternal serum concentrations, amniotic fluid, umbilical cord blood, and breast milk concentrations. RESULTS The mean daily dosage of lamotrigine was 351.32 mg (range 50-650 mg). We detected associations between maternal serum and amniotic fluid (β = 0.088, p < 0.001), as well as umbilical cord (β = 0.939, p < 0.001) and breast milk (β = 0.964, p < 0.001). The median penetration ratio into amniotic fluid, cord blood, and breast milk was 0.68, 0.92, and 0.77, respectively. CONCLUSIONS Lamotrigine concentrations in amniotic fluid, cord blood, and breast milk give evidence that the fetus/newborn is constantly exposed to lamotrigine. Maternal serum concentrations predicted exposure via amniotic fluid, umbilical cord, and breast milk. Data suggest that therapeutic drug monitoring can be recommended as part of the clinical routine in psychopharmacotherapy for pregnant or breastfeeding women.
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Paulzen M, Schoretsanitis G, Gründer G, Franz C, Stingl JC, Augustin M. Pregnancy exposure to venlafaxine-Therapeutic drug monitoring in maternal blood, amniotic fluid and umbilical cord blood and obstetrical outcomes. J Affect Disord 2020; 266:578-584. [PMID: 32056930 DOI: 10.1016/j.jad.2020.02.010] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/06/2019] [Revised: 01/19/2020] [Accepted: 02/01/2020] [Indexed: 01/31/2023]
Abstract
BACKGROUND For treatment with psychotropic drugs during pregnancy, extended therapeutic drug monitoring is recommended for individual therapy adjustment. We measured venlafaxine (VEN), O-desmethylvenlafaxine (ODV) and active moiety, AM (sum of VEN+ODV) concentrations in maternal serum, amniotic fluid and umbilical cord blood. METHODS Concentrations of VEN, ODVEN and AM were measured in nine mother-infant pairs at time of delivery; in five cases, amniotic fluid samples were available. Concentrations are reported as median values, first (Q1) and third (Q3) quartiles and ranges. Penetration ratio was calculated by dividing concentrations of VEN, ODVEN and AM in amniotic fluid and umbilical cord blood by maternal serum concentrations. RESULTS Median daily dosage of venlafaxine was 75 mg (range 37.5-225 mg). There were no significant correlations between daily dose, maternal serum, umbilical cord blood and amniotic fluid concentrations. Median penetration ratio into amniotic fluid was 2.5 (range 0.56-4.48). Median penetration ratio into fetal circulation was 1.05 (range 0.62-2.08). Median concentration of AM was 223.8 ng/mL, range 33.9-338.0 ng/mL (maternal serum), 789.0 ng/mL, range 309-1052.5 ng/mL (amniotic fluid) and 291.0 ng/mL, range 21.1-448.4 ng/mL (cord blood). DISCUSSION VEN, ODVEN and AM concentrations in maternal serum, amniotic fluid and umbilical cord blood indicate that the fetus might have been exposed to relatively high concentrations throughout pregnancy. High concentrations in amniotic fluid indicate an increased penetration into and/or accumulation within amniotic fluid and a decreased elimination out of amniotic fluid. Findings indicate that fetal in-utero exposition to venlafaxine is higher compared to other antidepressants.
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Affiliation(s)
- Michael Paulzen
- Alexianer Hospital Aachen, Germany; Department of Psychiatry, Psychotherapy and Psychosomatics, RWTH Aachen University, Aachen, Germany; JARA-Translational Brain Medicine, Aachen, Germany
| | - Georgios Schoretsanitis
- The Zucker Hillside Hospital, Psychiatry Research, Northwell Health, Glen Oaks, New York, USA; Hofstra Northwell School of Medicine, Hempstead, New York, USA; The Feinstein Institute for Medical Research, Manhasset, New York, USA
| | - Gerhard Gründer
- Department of Molecular Neuroimaging, Central Institute of Mental Health, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
| | - Cordula Franz
- Department of Gynecology and Obstetrics, RWTH Aachen University, Aachen, Germany
| | - Julia C Stingl
- Institute of Clinical Pharmacology, University Hospital of RWTH Aachen, Aachen, Germany
| | - Marc Augustin
- Department of Psychiatry, Psychotherapy and Psychosomatics, RWTH Aachen University, Aachen, Germany; JARA-Translational Brain Medicine, Aachen, Germany; Protestant University of Applied Sciences Bochum, Immanuel-Kant-Str. 18-20, 44803 Bochum, Germany.
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Paulzen M, Goecke TW, Kuzin M, Augustin M, Gründer G, Schoretsanitis G. Pregnancy exposure to quetiapine - Therapeutic drug monitoring in maternal blood, amniotic fluid and cord blood and obstetrical outcomes. Schizophr Res 2018; 195:252-257. [PMID: 28965779 DOI: 10.1016/j.schres.2017.09.043] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/29/2017] [Revised: 09/24/2017] [Accepted: 09/24/2017] [Indexed: 10/18/2022]
Abstract
RATIONALE This prospective study is the first to measure and correlate quetiapine concentrations in maternal blood, amniotic fluid and umbilical cord blood to account for the distribution of quetiapine. METHODS Concentrations of quetiapine are quantified in seven mother infant pairs at the time of delivery. Data are provided as median values, first (Q1) and third (Q3) quartiles and ranges. To account for the penetration ratio, the concentration of quetiapine in amniotic fluid and cord blood was divided by maternal concentrations. Correlations between daily dosage, maternal serum and umbilical cord blood concentrations were computed for seven patients while calculations for amniotic fluid were only available for six mother-infant pairs. RESULTS The median daily dosage of quetiapine was 300mg (Q1: 300mg, Q3: 600mg, range 200-800mg). There was a strong and significant correlation between maternal serum and cord blood concentrations (r=0.893, p=0.007). The median penetration ratio into fetal circulation was 0.18 (Q1: 0.16, Q3: 0.32; range 0.13-0.42), suggesting a low penetration. The median penetration ratio into amniotic fluid was 0.44 (Q1: 0.15, Q3: 0.96; range 0.09-1.70). CONCLUSIONS Quetiapine concentrations in amniotic fluid and cord blood give evidence that quetiapine is constantly accessible to the fetus with a relatively low penetration ratio. A high correlation between maternal serum and umbilical cord blood concentrations highlights a predictive role of quantifying drug concentrations in maternal serum for assessing drug concentrations in fetal circulation. Findings support the important role of therapeutic drug monitoring in supporting the efficacy and safety of psychopharmacological treatment strategies in highly vulnerable populations.
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Affiliation(s)
- Michael Paulzen
- Department of Psychiatry, Psychotherapy and Psychosomatics, RWTH Aachen University, Aachen, Germany; Alexianer Hospital Aachen, Germany; JARA - Translational Brain Medicine, Aachen, Germany.
| | - Tamme W Goecke
- Department of Gynecology and Obstetrics, RWTH Aachen University, Germany
| | - Maxim Kuzin
- Department of Psychiatry, Psychotherapy and Psychosomatics, RWTH Aachen University, Aachen, Germany
| | - Marc Augustin
- Department of Psychiatry, Psychotherapy and Psychosomatics, RWTH Aachen University, Aachen, Germany
| | - Gerhard Gründer
- Department of Psychiatry, Psychotherapy and Psychosomatics, RWTH Aachen University, Aachen, Germany
| | - Georgios Schoretsanitis
- Department of Psychiatry, Psychotherapy and Psychosomatics, RWTH Aachen University, Aachen, Germany; University Hospital of Psychiatry, Bern, Switzerland
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Abstract
Given the distinctive characteristics of both epilepsy and antiepileptic drugs (AEDs), therapeutic drug monitoring (TDM) can make a significant contribution to the field of epilepsy. The measurement and interpretation of serum drug concentrations can be of benefit in the treatment of uncontrollable seizures and in cases of clinical toxicity; it can aid in the individualization of therapy and in adjusting for variable or nonlinear pharmacokinetics; and can be useful in special populations such as pregnancy. This review examines the potential for TDM of newer AEDs such as eslicarbazepine acetate, felbamate, gabapentin, lacosamide, lamotrigine, levetiracetam, perampanel, pregabalin, rufinamide, retigabine, stiripentol, tiagabine, topiramate, vigabatrin, and zonisamide. We describe the relationships between serum drug concentration, clinical effect, and adverse drug reactions for each AED as well as the different analytical methods used for serum drug quantification. We discuss retrospective studies and prospective data on the serum drug concentration-efficacy of these drugs and present the pharmacokinetic parameters, oral bioavailability, reference concentration range, and active metabolites of newer AEDs. Limited data are available for recent AEDs, and we discuss the connection between drug concentrations in terms of clinical efficacy and nonresponse. Although we do not propose routine TDM, serum drug measurement can play a beneficial role in patient management and treatment individualization. Standardized studies designed to assess, in particular, concentration-efficacy-toxicity relationships for recent AEDs are urgently required.
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Affiliation(s)
- Shery Jacob
- Department of Pharmaceutics, College of Pharmacy, Gulf Medical University, University Street, P.O.Box No.4184, Ajman, UAE.
| | - Anroop B Nair
- Department of Pharmaceutics, College of Clinical Pharmacy, King Faisal University, Al-Ahsa, Saudi Arabia
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Pregnancy exposure to citalopram - Therapeutic drug monitoring in maternal blood, amniotic fluid and cord blood. Prog Neuropsychopharmacol Biol Psychiatry 2017; 79:213-219. [PMID: 28663113 DOI: 10.1016/j.pnpbp.2017.06.030] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/05/2017] [Revised: 06/20/2017] [Accepted: 06/26/2017] [Indexed: 01/20/2023]
Abstract
RATIONALE Aim of the study was to measure and correlate citalopram concentrations in maternal blood, amniotic fluid and umbilical cord blood to account for the distribution of the drug between these three compartments. METHODS Concentrations of citalopram were measured in twelve mother infant pairs at the time of delivery. Data are provided as median values, first (Q1) and third (Q3) quartiles as well as ranges. To account for the penetration ratio into amniotic fluid and cord blood, the concentration of citalopram in was divided by the concentration in maternal serum. Correlations between daily dosage, maternal serum concentrations and umbilical cord blood concentrations were computed for twelve patients. As amniotic fluid was only available for nine mother infant pairs, appropriate calculations are provided for these mother-infant pairs. RESULTS The median daily dosage of citalopram was 20mg (Q1: 10mg, Q3: 20mg; range 10-40mg). The relation between the daily dosage of citalopram and its concentrations in maternal serum was highly significant (r=0.667, p=0.018). Maternal serum concentrations and cord blood concentrations were positively correlated (r=0.790, p=0.002) with a median penetration ratio into the fetal circulation of 0.78 (Q1: 0.52, Q3: 1.16, range 0.46-1.66). The median penetration ratio into amniotic fluid was 1.8 (Q1: 1.07, Q3: 2.64; range 0.52-6.97). CONCLUSIONS Citalopram concentrations in amniotic fluid and cord blood give evidence that maternally administered citalopram is constantly accessible to the fetus via amniotic fluid. A high correlation between maternal serum concentrations of citalopram and umbilical cord blood concentrations highlights a predictive role of quantifying drug concentrations in maternal serum for assessing drug concentrations in the fetal circulation. Findings support the important role of therapeutic drug monitoring in maintaining the safety of pregnant women and exposed infants.
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Paulzen M, Goecke TW, Stickeler E, Gründer G, Schoretsanitis G. Sertraline in pregnancy - Therapeutic drug monitoring in maternal blood, amniotic fluid and cord blood. J Affect Disord 2017; 212:1-6. [PMID: 28129551 DOI: 10.1016/j.jad.2017.01.019] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/18/2016] [Revised: 01/16/2017] [Accepted: 01/19/2017] [Indexed: 12/11/2022]
Abstract
RATIONALE This study is the first to measure and correlate sertraline concentrations in maternal blood, amniotic fluid and umbilical cord blood and account for distribution of the drug between these three compartments. METHODS Concentrations of sertraline were measured in six mother infant pairs at the time of delivery. Data are provided as median values, first and third quartiles as well as ranges. To account for the penetration ratio into amniotic fluid and cord blood, the concentration of sertraline in both environments was divided by the concentration in maternal serum. Daily doses were correlated with maternal serum- and umbilical cord blood-concentrations, and serum levels were correlated with levels in amniotic fluid. RESULTS The median daily dose of sertraline was 75mg (Q1: 43.75mg, Q3: 100mg; range 25-100mg). Amniotic fluid concentrations of sertraline strongly correlated with the daily dose (r=0.833, p=0.039) while neither maternal serum concentrations nor cord blood concentrations correlated with the daily dose (p>0.05). The median penetration ratio for sertraline into amniotic fluid was 0.57 (Q1: 0.28, Q3: 0.75; range: 0.22-0.88). The median penetration ratio into the fetal circulation, calculated on the basis of umbilical cord blood-concentrations, was found to be 0.36 (Q1: 0.28, Q3: 0.49; range: 0.17-0.65). CONCLUSIONS Sertraline concentrations in amniotic fluid gave evidence that maternally administered sertraline is constantly accessible to the fetus via amniotic fluid in a manner not previously appreciated. A relatively low penetration into fetal circulation may contribute to a sufficient safety profile of sertraline during pregnancy although in our study APGAR Scores were relatively low in three infants. Our data support the important role of therapeutic drug monitoring in maintaining the safety of pregnant women and exposed infants.
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Affiliation(s)
- Michael Paulzen
- Department of Psychiatry, Psychotherapy and Psychosomatics, RWTH Aachen University, JARA - Translational Brain Medicine, Aachen, Germany.
| | - Tamme W Goecke
- Department of Gynecology and Obstetrics, RWTH Aachen University, Germany
| | - Elmar Stickeler
- Department of Gynecology and Obstetrics, RWTH Aachen University, Germany
| | - Gerhard Gründer
- Department of Psychiatry, Psychotherapy and Psychosomatics, RWTH Aachen University, JARA - Translational Brain Medicine, Aachen, Germany
| | - Georgios Schoretsanitis
- Department of Psychiatry, Psychotherapy and Psychosomatics, RWTH Aachen University, JARA - Translational Brain Medicine, Aachen, Germany; University Hospital of Psychiatry, Bern, Switzerland
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Abstract
Pregnancy and postpartum represent times of increased vulnerability for women with bipolar disorder, yet this condition remains under-diagnosed and under-treated. As 50 % of pregnancies are unplanned, the risks associated with the illness and the potential risks associated with treatment should be considered when a woman of reproductive age first presents for evaluation. This article reviews the epidemiology of perinatal bipolar disorder, screening recommendations, and treatment with pharmacotherapy and electroconvulsive therapy (ECT). An overview of the data in pregnancy and lactation is presented for lithium, lamotrigine, valproic acid, newer antipsychotics, and ECT. General principles of management include close monitoring in pregnancy and postpartum, careful adjustment of the treatment regimen to attenuate the risk of relapse, and avoidance of valproic acid when possible. Thoughtful consideration of these issues will minimize the risks to the mother and baby.
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