- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT02490241
Lithium Therapy: Understanding Mothers, Metabolism and Mood (LiThiUM)
Study Overview
Detailed Description
There is an increased risk of recurrence of Bipolar Disorder (BD) episodes or worsening symptoms in pregnancy after the discontinuation of mood stabilizers. Similarly, changes in medication concentration due to the physiological changes in pregnancy may effectively reduce the medication dose and thus its efficacy in pregnancy. Therapeutic dose monitoring has proven to have great utility in preventing seizure recurrence in women with epilepsy (WWE). Similar guidelines to that of women with epilepsy would benefit pregnant women with BD who are taking mood stabilizing medications in pregnancy. Current evidence suggests that lithium has a more favorable reproductive profile than many mood stabilizing antiepileptic agents. However, the pharmacokinetics as well as the utility of therapeutic dose monitoring of lithium in pregnant patients with Bipolar Disorder has not been well studied.
This study is an observational protocol to explore the longitudinal pharmacokinetics (PK) of lithium during pregnancy and postpartum in 20 women with Bipolar Disorder. The correlation between changes in bioavailability and concentrations ratios and increases in symptoms of depression, mania and anxiety and recurrence of syndromal BD episodes that fulfill Diagnostic and Statistics Manual of Mental Disorders (IV) (DSM4) criteria will be investigated.
The primary aims of this study are 1.) To describe the changes in lithium elimination and serum concentration across pregnancy and postpartum to establish its efficacious use and dosing requirements during childbearing 2.) To evaluate the associations between maternal and umbilical cord lithium serum levels. 3.) To explore the relationship between declining lithium serum concentrations during pregnancy and the increase in psychiatric symptoms and recurrence of syndromal BD.
To optimize the research yield from this investigation, participants will have the option to allow banking of cerebrospinal (CSF) fluid and DNA for future analyses.
Study Type
Enrollment (Actual)
Contacts and Locations
Study Locations
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Illinois
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Chicago, Illinois, United States, 60611
- Northwestern Memorial Hospital
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Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Sampling Method
Study Population
Description
Inclusion Criteria:
- Age 18 or older
- If Pregnant, equal to or less than 26 weeks
- English-speaking
- DSM-IV Bipolar Disorder, any subtype, Major Depressive Disorder, or Mood Disorder Not Otherwise Specified
- Able to provide informed consent
- Daily dosing of lithium
Exclusion Criteria:
- Active substance abuse within last 6 months and/or positive urine drug screen
- Active suicidality
- No obstetrical care
- Use of other drugs that affect metabolism of lithium
- Medications in FDA categories F or X that are not antimanic drugs
- Chronic Kidney Disease
Study Plan
How is the study designed?
Design Details
- Observational Models: Cohort
- Time Perspectives: Prospective
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Change in Serum concentration/elimination
Time Frame: An average of every 10 weeks, beginning at the preconception visit where a baseline concentration level will be established, at 3 timepoints throughout pregnancy, and at two and twelve weeks postpartum
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For patients on 1x day dosing, serum levels will be obtained beginning at time 0 and at hours, 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, and 24 and L/D ratio will be determined at each time point. This series of serum levels will be completed an average of every 10 weeks across pregnancy, and postpartum. For patients on 2x dosing, serum levels will be obtained at time 0 and at hours 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, and 12. All urine excreted during participant's overnight research visits will be collected to perform lithium and creatinine clearance tests. |
An average of every 10 weeks, beginning at the preconception visit where a baseline concentration level will be established, at 3 timepoints throughout pregnancy, and at two and twelve weeks postpartum
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Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Scores on mania assessment, Young Mania Reporting Scale (YMRS)
Time Frame: Participants will complete these assessments an average of every 10 weeks from the time they enter the study, up to 12 weeks postpartum.
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To determine if there is a pattern of increasing scores on clinician administered mania assessment (YMRS) and declining L/D ratios.
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Participants will complete these assessments an average of every 10 weeks from the time they enter the study, up to 12 weeks postpartum.
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Scores on anxiety scale, Generalized Anxiety Disorder (GAD-7)
Time Frame: Participants will complete these assessments an average of every 10 weeks from the time they enter the study, up to 12 weeks postpartum.
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Participants will complete these assessments an average of every 10 weeks from the time they enter the study, up to 12 weeks postpartum.
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Infant (umbilical cord)/Maternal ratio of lithium
Time Frame: 30 min
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Ratio of umbilical cord (infant) lithium serum level to maternal lithium serum level will be determined at delivery.
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30 min
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Scores on Depression assessment, Inventory of Depression Symptomatology- Self Report (IDS-SR)
Time Frame: Participants will complete these assessments an average of every 10 weeks from the time they enter the study, up to 12 weeks postpartum
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To determine if there is a pattern of increasing scores on self-report depression assessment (IDS-SR) and declining L/D ratios.
Increasing scores indicate worsening symptoms or depression episode recurrence.
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Participants will complete these assessments an average of every 10 weeks from the time they enter the study, up to 12 weeks postpartum
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Collaborators and Investigators
Sponsor
Investigators
- Principal Investigator: Crystal T Clark, MD, MSc, Northwestern University
Study record dates
Study Major Dates
Study Start
Primary Completion (Actual)
Study Completion (Actual)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Estimate)
Study Record Updates
Last Update Posted (Actual)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- 00200026
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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