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More info
You can access this
clinical trial
if you have
Labor Pain
and you are
between 18 and 40
years old
This is a second phase trial assessing
efficacy and side effects of the new treatment.
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The purpose

This study will investigate the dose of hydromorphone which will relieve the pain of women in labor when delivered directly in the area around the spinal cord (i.e., intrathecal injection). The primary objective is to determine the dose of intrathecal hydromorphone that results in a pain score of less than 4 out of 10 thirty minutes after intrathecal injection in 50% of women. Secondary objectives include determining this dose at five and ten minutes after injection. Thirty women admitted to labor and delivery for planned vaginal delivery desiring epidural placement will be consented for the study. The starting dose of intrathecal hydromorphone will be 6 mcg. The up-and-down sequential allocation method of statistical analysis will be used, meaning that each subsequent dose will be dependent upon the result obtained from the prior dose - ergo, if the initial subject has pain relief, the second subject will receive 4 mcg (2 mcg less), but if the initial subject does not have pain relief, the second subject will receive 8 mcg (2 mcg more) of hydromorphone. After the intrathecal injection is given and the epidural is placed, visual analogue pain scores will be assessed 60 minutes following injection. A pain score of less than three will be a positive result. A pain score of three or greater will be a negative result. Blood pressure, heart rate, arterial oxygen saturation, fetal heart rate, and any side effects will also be assessed.

Provided treatments

  • Drug: Hydromorphone

Locations near you

Unfortunately, there are no recruiting locations near you. Please check the list with all locations below.
Tris trial is registered with FDA with number: NCT01598506. The sponsor of the trial is Emory University and it is looking for 22 volunteers for the current phase.
Official trial title:
Determination of the ED50 of Intrathecal Hydromorphone in Laboring Women Using the Up-and-down Sequential Allocation Method