Ketamine Pharmacokinetics and Pharmacodynamics for Postpartum Depression and Pain After Cesarean Delivery

Trial statusRecruiting
Trial phasePhase 1
Trial typeInterventional
Biological sexAll
Age18+
SponsorUniversity of Utah

About this trial

The purpose of this study is to identify pharmacokinetics of postpartum ketamine infusion. This study will assess ketamine kinetics and metabolism in this setting. Ketamine is expected to exert different kinetics during the physiologic state of post-pregnancy. The goal in conducting this study is to better understand the pharmacokinetics and pharmacodynamics of postpartum ketamine infusion. A secondary goal is to compare these kinetics to reproductive age matched controls and to assess sex differences in ketamine pharmacokinetics.

The peripartum group of this study will receive ketamine after cesarean delivery, while the control group will consist of non-pregnant female subjects and male subjects receiving the same infusion protocol.

Eligibility criteria

This trial accepts healthy volunteers

Qualifiers

Cesarean delivery

Adults 18 years and older

Term delivery ≥ 37 weeks gestation anticipated at time of delivery

ASA PS 2 or 3

Disqualifiers

Patient going under general anesthesia for cesarean delivery

Allergy to study medication (ketamine)

ASA PS 4 +

Contraindications to neuraxial anesthesia

Trial design

Design model

Parallel

Treatments tested in this trial

  • Ketamine (Ketalar)

    Drug

    Loading Dose: 0.18 mg/kg/hr x 1 hour; Maintenance Dose 0.05 mg/kg/hr x 11 hours

Treatment groups

50 Participants
are divided into 2 treatment groups
Group A: Ketamine Infusion: Cesarean Delivery PopulationExperimental treatment 1 intervention
Group B: Ketamine Infusion: Healthy Control PopulationExperimental treatment 1 intervention

Trial outcomes

Primary outcomes

1

Maternal ketamine area under the curve (AUC)

Ketamine area under the plasma concentration-time curve (AUC 0-∞) (AUC, mcg\*min/mL), which reflects the actual body exposure to ketamine after administration of ketamine.

Time frame
0 to 24 hours from initiation of ketamine infusion

Secondary outcomes

1

Patient reported acceptability of any reported side effects

Proportion (%) of patient cohort reporting acceptability of ketamine infusion

Time frame
0 to 24 hours after initiation of ketamine infusion
2

Pain area under the curve (AUC)

Pain score area under the curve (AUC) where pain scores are measured from 0 (no pain) to 10 (worst imaginable pain), for the duration of epidural analgesia.

Time frame
0 to 24 hours after initiation of ketamine infusion
3

Depression scores (Peripartum)

Depression scores as defined by the Edinburgh Postnatal Depression Scale (Peripartum Group), scale 0-30, measured among the peripartum cohort.

Time frame
Baseline to week 12 post-infusion
4

Depression Scores (control)

Depression scores as defined by the Patient Health Questionnaire (PHQ-9) (Control Group), scale 0-27, measured among the control nonperipartum cohort.

Time frame
Baseline to week 12 post-infusion

Other outcomes

Sponsors and contacts

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University of Utah

Lead sponsor

National Institute of Mental Health (NIMH)

Collaborator