Effects of; Anesthesia, in Labor and DeliveryNCT01982851
Effects of Analgesic Techniques on Duration of Labor for Induction Patients
A study testing Epidural de novo and CSE in people with Effects of; Anesthesia, in Labor and Delivery and Pregnancy, run by Northwestern University at 1 site in United States.
Trial summary
The purpose of this study is to determine if there is a difference in the duration of the first stage of labor in nulliparous women scheduled for an induction of labor, with whom analgesia is maintained with a combined spinal epidural (CSE) technique versus an epidural de novo technique. Read more about this study
- Who is it for?
- Ages 18 to 45 years, women onlyHealthy volunteers can take part
- Conditions the study is for
- Effects of; Anesthesia, in Labor and Delivery, Pregnancy, Prolonged First Stage of Labor
- What is being tested?
- Epidural de novo and CSE
- Type of treatment
- Surgery or procedure
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 134 participants
- Where
- 1 siteUnited States
- Study dates
- Jul 2010to Mar 2014
- Phase
- Interventional
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 to 45 years
- Women only
- Healthy volunteers accepted
- Adult
Who may be able to join
- Nulliparous
- American Society of Anesthesia Physical Status (ASA) 2 females
- > 18 years old
- term (>37 weeks gestation)
- singleton
- vertex pregnancies
- scheduled induction of labor
Who cannot join
- Non-vertex presentation
- Spontaneous labor or spontaneous rupture of membranes
- contraindication to opioid or neuraxial analgesia
- contraindication to combine spinal-epidural technique (e.g. unfavorable airway exam)
- cervical dilation > 4.0cm
- administration of systemic hydromorphine within 4 hours of epidural request
Trial locations and contacts
1 site in 1 country.
United States1 site
Northwestern Memorial Hospital
Chicago, Illinois, 60611
About this study
Official title: A Randomized Trial of the Impact of Three Labor Analgesia Techniques on Labor Duration in Nulliparous Labor Inductions
The purpose of this study is to determine if there is a difference in the duration of the first stage of labor in nulliparous women scheduled for an induction of labor, with whom analgesia is maintained with a combined spinal epidural (CSE) technique versus an epidural de novo technique. The investigators hypothesize that the duration of the first stage of labor will be no different in nulliparous patients who receive either intrathecal fentanyl or intrathecal fentanyl and bupivacaine, as part of a CSE technique. However, the duration of the first stage of labor will be shorter in parturients who receive intrathecal analgesia (as part of a CSE technique) compared to those who receive an epidural de novo technique with fentanyl and bupivacaine.
Read the detailed description
At the first request for neuraxial labor analgesia, the cervix will be examined. If < 4.0 cm, the patient will be randomized to either Combined spinal epidural (CSE) technique with intrathecal fentanyl, CSE technique with intrathecal bupivacaine and fentanyl, or epidural de novo technique.
Labor analgesia will be administered in the sitting position, at either the L2-3 or L3-4 interspace. All patients will receive a 500mL intravenous bolus of Lactated Ringer's solution. The epidural space will be located using the loss-of-resistance technique utilizing a 17-G Tuohy epidural needle. Patients assigned to an intrathecal dose will utilize the standard needle-through-needle technique. A 19-G epidural catheter will be inserted 5 cm in the epidural space and maintenance epidural analgesia will be initiated. Patients assigned to an epidural de novo technique will have the epidural space identified with a similar loss-of-resistance technique. The epidural catheter will be inserted 5 cm into the epidural space. Epidural analgesia will be initiated with fentanyl 100mcg + bupivacaine 0.125% 10-20 mL (in divided doses). Maintenance epidural analgesia will then be initiated.
Maintenance epidural analgesia will consist of patient-controlled epidural analgesia (PCEA) with bupivacaine 0.0625% and fentanyl 1.95 mcg/mL at the following parameters: basal rate of 8 mL/hr with bolus dose = 8 mL, lock-out interval = 10 min and maximum volume = 32 mL/hr.
Breakthrough pain in all groups will be managed using anesthesiologist administered epidural boluses of bupivacaine 1.25 mg/mL, 10-15mL, without fentanyl. If instrumental vaginal delivery is required, patients will receive anesthesiologist administered epidural boluses of chloroprocaine 30 mg/mL, 5-10 mL. If a patient does not have an adequate level of analgesia or has a one-sided block, despite epidural redoses, the epidural catheter will be replaced at another level and 0.125% bupivacaine 5-15 mL will be administered until an adequate level of analgesia is established.
The primary outcome of the study is duration of first stage of labor. Regular cervical examinations are necessary. Typically, full cervical dilation is diagnosed with a cervical examination only when the patient complains of rectal pressure, which is likely to be at a later time period in women with effective neuraxial analgesia compared to women with systemic opioid analgesia. Therefore, the duration of the first stage of labor will be artificially prolonged if regular cervical exams are not performed. The investigators intend to perform sterile cervical examinations at the first request for labor analgesia, then at routine times during the course of labor per the managing OB provider's discretion, and then every 2 hours after the patient reaches 90-100% cervical effacement until complete cervical dilation.
Fetal heart rate (FHR) tracings without information about group assignment or other treatment modalities will also be assessed by a perinatologist.
- Being tested
- Epidural de novo, CSE
- Keywords
- pain, epidural, combined spinal epidural
- Medical subject headings
- Pain
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Epidural de novoProcedure or surgery
Patients will have the epidural space identified with a loss-of-resistance technique utilizing a 17-G Tuohy epidural needle. The epidural catheter will be inserted 5 cm into the epidural space. Epidural analgesia will be initiated with fentanyl 100mcg + bupivacaine 0.125% 10-20 mL (in divided doses). Maintenance epidural analgesia will then be initiated.
CSEProcedure or surgery
The epidural space will be located using the loss-of-resistance technique utilizing a 17-G Tuohy epidural needle. Patients will receive the intrathecal study drug via a 27-G pencil-point spinal needle utilizing the standard needle-through-needle technique. A 19-G epidural catheter will be inserted 5 cm in the epidural space. Maintenance epidural analgesia will then be initiated.
| Study group | Role | What they receive |
|---|---|---|
| Group E | Active comparator | Epidural de novo technique Receives: Procedure: Epidural de novo |
| Group BF | Active comparator | Combined spinal epidural (CSE) technique with intrathecal 0.5% Bupivicaine 2.5mg + Fentanyl 15mcg Receives: Procedure: CSE |
| Group F | Active comparator | Combined spinal epidural (CSE) technique with intrathecal fentanyl 25mcg Receives: Procedure: CSE |
What is being measured
The primary outcome is the main question the study is designed to answer.
Duration of first stage of labor
Sterile cervical examinations at the first request for labor analgesia will be done, then at routine times during the course of labor per the managing OB provider's discretion. When the patient reaches 90-100% cervical effacement, cervical exams will be done every two hours thereafter until the patient reaches complete cervical dilation. Cervical examinations will be performed using a sterile glove, by each patient's labor and delivery nurse or physician.
Measured: Onset of contractions or rupture of membrances to cervical dilation of 10cm
Secondary outcomes (1)
Presence or absence of fetal heart rate decelerations
Measured: Time of first analgesic dose to 60 minutes
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted13 Nov 2013 (estimated)
- Study startJul 2010
- Primary completionMar 2014
- Study completionMar 2014
Why it stopped: low qualified candidate enrollment
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (26)Papers the sponsor has linked to this study.
- Other trials for Effects of; Anesthesia, in Labor and DeliveryStudies of the same condition, open and under way.
- More trials run by Northwestern UniversityThe sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase N/A
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- None (open label)
- Enrolment
- 134 participants (actual)
Sponsor and investigators
- Lead sponsor
- Northwestern University
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Christopher Cambic, Northwestern University
- Investigators
- Christopher Cambic, MD, Principal investigator, Northwestern University
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT01982851
- Sponsor's protocol ID
- STU00031120
- Status last verified
- Mar 2014
- First submitted
- 6 Nov 2013
- Last updated
- 11 Mar 2014
- Results posted
- No
- Data monitoring committee
- No
Publications
Howell CJ, Chalmers I. A review of prospectively controlled comparisons of epidural with non-epidural forms of pain relief during labour. Int J Obstet Anesth. 1992 Jan;1(2):93-110. doi: 10.1016/0959-289x(92)90008-r.
PubMed 15636806Ramin SM, Gambling DR, Lucas MJ, Sharma SK, Sidawi JE, Leveno KJ. Randomized trial of epidural versus intravenous analgesia during labor. Obstet Gynecol. 1995 Nov;86(5):783-9. doi: 10.1016/0029-7844(95)00269-w.
PubMed 7566849Herman NL, Choi KC, Affleck PJ, Calicott R, Brackin R, Singhal A, Andreasen A, Gadalla F, Fong J, Gomillion MC, Hartman JK, Koff HD, Lee SH, Van Decar TK. Analgesia, pruritus, and ventilation exhibit a dose-response relationship in parturients receiving intrathecal fentanyl during labor. Anesth Analg. 1999 Aug;89(2):378-83. doi: 10.1097/00000539-199908000-00024.
PubMed 10439751Stocks GM, Hallworth SP, Fernando R, England AJ, Columb MO, Lyons G. Minimum local analgesic dose of intrathecal bupivacaine in labor and the effect of intrathecal fentanyl. Anesthesiology. 2001 Apr;94(4):593-8; discussion 5A. doi: 10.1097/00000542-200104000-00011.
PubMed 11379678Ohel G, Gonen R, Vaida S, Barak S, Gaitini L. Early versus late initiation of epidural analgesia in labor: does it increase the risk of cesarean section? A randomized trial. Am J Obstet Gynecol. 2006 Mar;194(3):600-5. doi: 10.1016/j.ajog.2005.10.821.
PubMed 16522386Wong CA, Scavone BM, Peaceman AM, McCarthy RJ, Sullivan JT, Diaz NT, Yaghmour E, Marcus RJ, Sherwani SS, Sproviero MT, Yilmaz M, Patel R, Robles C, Grouper S. The risk of cesarean delivery with neuraxial analgesia given early versus late in labor. N Engl J Med. 2005 Feb 17;352(7):655-65. doi: 10.1056/NEJMoa042573.
PubMed 15716559Wong CA, McCarthy RJ, Sullivan JT, Scavone BM, Gerber SE, Yaghmour EA. Early compared with late neuraxial analgesia in nulliparous labor induction: a randomized controlled trial. Obstet Gynecol. 2009 May;113(5):1066-1074. doi: 10.1097/AOG.0b013e3181a1a9a8.
PubMed 19384122Sharma SK, McIntire DD, Wiley J, Leveno KJ. Labor analgesia and cesarean delivery: an individual patient meta-analysis of nulliparous women. Anesthesiology. 2004 Jan;100(1):142-8; discussion 6A. doi: 10.1097/00000542-200401000-00023.
PubMed 14695735Comparative Obstetric Mobile Epidural Trial (COMET) Study Group UK. Effect of low-dose mobile versus traditional epidural techniques on mode of delivery: a randomised controlled trial. Lancet. 2001 Jul 7;358(9275):19-23. doi: 10.1016/S0140-6736(00)05251-X.
PubMed 11454372Nageotte MP, Larson D, Rumney PJ, Sidhu M, Hollenbach K. Epidural analgesia compared with combined spinal-epidural analgesia during labor in nulliparous women. N Engl J Med. 1997 Dec 11;337(24):1715-9. doi: 10.1056/NEJM199712113372402.
PubMed 9392696Norris MC, Fogel ST, Conway-Long C. Combined spinal-epidural versus epidural labor analgesia. Anesthesiology. 2001 Oct;95(4):913-20. doi: 10.1097/00000542-200110000-00020.
PubMed 11605932Tsen LC, Thue B, Datta S, Segal S. Is combined spinal-epidural analgesia associated with more rapid cervical dilation in nulliparous patients when compared with conventional epidural analgesia? Anesthesiology. 1999 Oct;91(4):920-5. doi: 10.1097/00000542-199910000-00010.
PubMed 10519493Shnider SM, Abboud TK, Artal R, Henriksen EH, Stefani SJ, Levinson G. Maternal catecholamines decrease during labor after lumbar epidural anesthesia. Am J Obstet Gynecol. 1983 Sep 1;147(1):13-5. doi: 10.1016/0002-9378(83)90076-5.
PubMed 6614080Clarke VT, Smiley RM, Finster M. Uterine hyperactivity after intrathecal injection of fentanyl for analgesia during labor: a cause of fetal bradycardia? Anesthesiology. 1994 Oct;81(4):1083. doi: 10.1097/00000542-199410000-00041. No abstract available.
PubMed 7943823Cohen SE, Cherry CM, Holbrook RH Jr, el-Sayed YY, Gibson RN, Jaffe RA. Intrathecal sufentanil for labor analgesia--sensory changes, side effects, and fetal heart rate changes. Anesth Analg. 1993 Dec;77(6):1155-60. doi: 10.1213/00000539-199312000-00013.
PubMed 8250307
Study at a glance
From the registry record, last updated by the sponsor on 11 Mar 2014. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- A Randomized Trial of the Impact of Three Labor Analgesia Techniques on Labor Duration in Nulliparous Labor Inductions
- ClinicalTrials.gov ID
- NCT01982851
- Acronym / sponsor ID
- STU00031120
- Keywords
- pain, epidural, combined spinal epidural
- Study type
- Interventional
- Recruitment status
- TerminatedReason stopped: low qualified candidate enrollment
- Enrolment
- 134 participants (actual)
- Lead sponsor
- Northwestern UniversityUniversity, hospital or other
- Study start
- Jul 2010
- Primary completion
- Mar 2014 (actual)
- Study completion
- Mar 2014 (actual)
- First posted
- 13 Nov 2013 (estimated)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
The purpose of this study is to determine if there is a difference in the duration of the first stage of labor in nulliparous women scheduled for an induction of labor, with whom analgesia is maintained with a combined spinal epidural (CSE) technique versus an epidural de novo technique. The investigators hypothesize that the duration of the first stage of labor will be no different in nulliparous patients who receive either intrathecal fentanyl or intrathecal fentanyl and bupivacaine, as part of a CSE technique. However, the duration of the first stage of labor will be shorter in parturients who receive intrathecal analgesia (as part of a CSE technique) compared to those who receive an epidural de novo technique with fentanyl and bupivacaine.
Detailed description
At the first request for neuraxial labor analgesia, the cervix will be examined. If < 4.0 cm, the patient will be randomized to either Combined spinal epidural (CSE) technique with intrathecal fentanyl, CSE technique with intrathecal bupivacaine and fentanyl, or epidural de novo technique.
Labor analgesia will be administered in the sitting position, at either the L2-3 or L3-4 interspace. All patients will receive a 500mL intravenous bolus of Lactated Ringer's solution. The epidural space will be located using the loss-of-resistance technique utilizing a 17-G Tuohy epidural needle. Patients assigned to an intrathecal dose will utilize the standard needle-through-needle technique. A 19-G epidural catheter will be inserted 5 cm in the epidural space and maintenance epidural analgesia will be initiated. Patients assigned to an epidural de novo technique will have the epidural space identified with a similar loss-of-resistance technique. The epidural catheter will be inserted 5 cm into the epidural space. Epidural analgesia will be initiated with fentanyl 100mcg + bupivacaine 0.125% 10-20 mL (in divided doses). Maintenance epidural analgesia will then be initiated.
Maintenance epidural analgesia will consist of patient-controlled epidural analgesia (PCEA) with bupivacaine 0.0625% and fentanyl 1.95 mcg/mL at the following parameters: basal rate of 8 mL/hr with bolus dose = 8 mL, lock-out interval = 10 min and maximum volume = 32 mL/hr.
Breakthrough pain in all groups will be managed using anesthesiologist administered epidural boluses of bupivacaine 1.25 mg/mL, 10-15mL, without fentanyl. If instrumental vaginal delivery is required, patients will receive anesthesiologist administered epidural boluses of chloroprocaine 30 mg/mL, 5-10 mL. If a patient does not have an adequate level of analgesia or has a one-sided block, despite epidural redoses, the epidural catheter will be replaced at another level and 0.125% bupivacaine 5-15 mL will be administered until an adequate level of analgesia is established.
The primary outcome of the study is duration of first stage of labor. Regular cervical examinations are necessary. Typically, full cervical dilation is diagnosed with a cervical examination only when the patient complains of rectal pressure, which is likely to be at a later time period in women with effective neuraxial analgesia compared to women with systemic opioid analgesia. Therefore, the duration of the first stage of labor will be artificially prolonged if regular cervical exams are not performed. The investigators intend to perform sterile cervical examinations at the first request for labor analgesia, then at routine times during the course of labor per the managing OB provider's discretion, and then every 2 hours after the patient reaches 90-100% cervical effacement until complete cervical dilation.
Fetal heart rate (FHR) tracings without information about group assignment or other treatment modalities will also be assessed by a perinatologist.
Study design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- None (open label)
- Number of arms
- 3
| Arm | Type | Receives |
|---|---|---|
| Group E | Active comparator | Procedure: Epidural de novoEpidural de novo technique |
| Group BF | Active comparator | Procedure: CSECombined spinal epidural (CSE) technique with intrathecal 0.5% Bupivicaine 2.5mg + Fentanyl 15mcg |
| Group F | Active comparator | Procedure: CSECombined spinal epidural (CSE) technique with intrathecal fentanyl 25mcg |
Who may qualify
- Ages
- 18 to 45 years
- Sex
- Female only
- Healthy volunteers
- Accepted
- Age groups
- Adult
Key inclusion criteria (7 listed)
- Nulliparous
- American Society of Anesthesia Physical Status (ASA) 2 females
- > 18 years old
- term (>37 weeks gestation)
- singleton
Key exclusion criteria (6 listed)
- Non-vertex presentation
- Spontaneous labor or spontaneous rupture of membranes
- contraindication to opioid or neuraxial analgesia
- contraindication to combine spinal-epidural technique (e.g. unfavorable airway exam)
- cervical dilation > 4.0cm
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| Epidural de novoPatients will have the epidural space identified with a loss-of-resistance technique utilizing a 17-G Tuohy epidural needle. The epidural catheter will be inserted 5 cm into the epidural space. Epidural analgesia will be initiated with fentanyl 100mcg + bupivacaine 0.125% 10-20 mL (in divided doses). Maintenance epidural analgesia will then be initiated. | Procedure or surgery | Group E |
| CSEThe epidural space will be located using the loss-of-resistance technique utilizing a 17-G Tuohy epidural needle. Patients will receive the intrathecal study drug via a 27-G pencil-point spinal needle utilizing the standard needle-through-needle technique. A 19-G epidural catheter will be inserted 5 cm in the epidural space. Maintenance epidural analgesia will then be initiated. | Procedure or surgery | Group BF, Group F |
Primary outcome
Duration of first stage of labor
Time frame: Onset of contractions or rupture of membrances to cervical dilation of 10cm
Sterile cervical examinations at the first request for labor analgesia will be done, then at routine times during the course of labor per the managing OB provider's discretion. When the patient reaches 90-100% cervical effacement, cervical exams will be done every two hours thereafter until the patient reaches complete cervical dilation. Cervical examinations will be performed using a sterile glove, by each patient's labor and delivery nurse or physician.
1 secondary outcome
Presence or absence of fetal heart rate decelerations
Time frame: Time of first analgesic dose to 60 minutes
Results and safety
The study was stopped early (reason given: low qualified candidate enrollment). Results are not available in the source record.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 11 Mar 2014.
- Background: PubMed 15636806Howell CJ, Chalmers I. A review of prospectively controlled comparisons of epidural with non-epidural forms of pain relief during labour. Int J Obstet Anesth. 1992 Jan;1(2):93-110. doi: 10.1016/0959-289x(92)90008-r.
- Background: PubMed 7566849Ramin SM, Gambling DR, Lucas MJ, Sharma SK, Sidawi JE, Leveno KJ. Randomized trial of epidural versus intravenous analgesia during labor. Obstet Gynecol. 1995 Nov;86(5):783-9. doi: 10.1016/0029-7844(95)00269-w.
- Background: PubMed 10439751Herman NL, Choi KC, Affleck PJ, Calicott R, Brackin R, Singhal A, Andreasen A, Gadalla F, Fong J, Gomillion MC, Hartman JK, Koff HD, Lee SH, Van Decar TK. Analgesia, pruritus, and ventilation exhibit a dose-response relationship in parturients receiving intrathecal fentanyl during labor. Anesth Analg. 1999 Aug;89(2):378-83. doi: 10.1097/00000539-199908000-00024.
- Background: PubMed 11379678Stocks GM, Hallworth SP, Fernando R, England AJ, Columb MO, Lyons G. Minimum local analgesic dose of intrathecal bupivacaine in labor and the effect of intrathecal fentanyl. Anesthesiology. 2001 Apr;94(4):593-8; discussion 5A. doi: 10.1097/00000542-200104000-00011.
- Background: PubMed 16522386Ohel G, Gonen R, Vaida S, Barak S, Gaitini L. Early versus late initiation of epidural analgesia in labor: does it increase the risk of cesarean section? A randomized trial. Am J Obstet Gynecol. 2006 Mar;194(3):600-5. doi: 10.1016/j.ajog.2005.10.821.
- Background: PubMed 15716559Wong CA, Scavone BM, Peaceman AM, McCarthy RJ, Sullivan JT, Diaz NT, Yaghmour E, Marcus RJ, Sherwani SS, Sproviero MT, Yilmaz M, Patel R, Robles C, Grouper S. The risk of cesarean delivery with neuraxial analgesia given early versus late in labor. N Engl J Med. 2005 Feb 17;352(7):655-65. doi: 10.1056/NEJMoa042573.
- Background: PubMed 19384122Wong CA, McCarthy RJ, Sullivan JT, Scavone BM, Gerber SE, Yaghmour EA. Early compared with late neuraxial analgesia in nulliparous labor induction: a randomized controlled trial. Obstet Gynecol. 2009 May;113(5):1066-1074. doi: 10.1097/AOG.0b013e3181a1a9a8.
- Background: PubMed 14695735Sharma SK, McIntire DD, Wiley J, Leveno KJ. Labor analgesia and cesarean delivery: an individual patient meta-analysis of nulliparous women. Anesthesiology. 2004 Jan;100(1):142-8; discussion 6A. doi: 10.1097/00000542-200401000-00023.
- Background: PubMed 11454372Comparative Obstetric Mobile Epidural Trial (COMET) Study Group UK. Effect of low-dose mobile versus traditional epidural techniques on mode of delivery: a randomised controlled trial. Lancet. 2001 Jul 7;358(9275):19-23. doi: 10.1016/S0140-6736(00)05251-X.
- Background: PubMed 9392696Nageotte MP, Larson D, Rumney PJ, Sidhu M, Hollenbach K. Epidural analgesia compared with combined spinal-epidural analgesia during labor in nulliparous women. N Engl J Med. 1997 Dec 11;337(24):1715-9. doi: 10.1056/NEJM199712113372402.
- Background: PubMed 11605932Norris MC, Fogel ST, Conway-Long C. Combined spinal-epidural versus epidural labor analgesia. Anesthesiology. 2001 Oct;95(4):913-20. doi: 10.1097/00000542-200110000-00020.
- Background: PubMed 10519493Tsen LC, Thue B, Datta S, Segal S. Is combined spinal-epidural analgesia associated with more rapid cervical dilation in nulliparous patients when compared with conventional epidural analgesia? Anesthesiology. 1999 Oct;91(4):920-5. doi: 10.1097/00000542-199910000-00010.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Christopher Cambic, MD principal investigator
Northwestern University
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing Epidural de novo and CSE in people with Effects of; Anesthesia, in Labor and Delivery and Pregnancy, run by Northwestern University at 1 site in United States.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 7 inclusion and 6 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: stopped early, as of the sponsor's last update on 11 Mar 2014. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
The study was stopped early (reason given: low qualified candidate enrollment). Results are not available in the source record.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Duration of first stage of labor (time frame: Onset of contractions or rupture of membrances to cervical dilation of 10cm). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT01982851, which also lists 26 linked publications.
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 11 Mar 2014.