Trial Outcomes & Findings for A Randomized Comparison of Transcervical Foley Bulb With Vaginal Misoprostol to Vaginal Misoprostol Alone for Induction of Labor (NCT NCT02566005)

NCT ID: NCT02566005

Last Updated: 2018-03-27

Results Overview

During labor from the start of the induction to the delivery

Recruitment status

COMPLETED

Study phase

NA

Target enrollment

200 participants

Primary outcome timeframe

Day 1

Results posted on

2018-03-27

Participant Flow

During the study period from September 2015-July 2016, 4767 patients delivered at Mount Sinai West and of these, 1423 deliveries followed induction of labor. A total of 200 patients consented to participate in the study and were randomized, 100 to each group.

Participant milestones

Participant milestones
Measure
Misoprostol Group
25mcg of misoprostol per vagina every 4hours per the standard hospital protocol. Once the cervix becomes favorable or if the patient is in active labor, or if there is no progress for 24 hours, misoprostol administration will be discontinued. Further management of labor will depend on the labor team. (25mcg tablets are not available commercially; a 100mcg table is cut into fourths by the hospital pharmacist.)
Misoprostol and Foley Bulb Group
25mcg of misoprostol per vagina every 4hours per the standard hospital protocol. In addition, a foley bulb will be inserted digitally or by direct visualization with the use of a sterile speculum. The foley will be inserted through the internal os and filled with 60cc of normal saline. The catheter will be taped to the patient's inner thigh under gentle traction. When the foley bulb has fallen out (spontaneous expulsion), further management of labor depends on the labor team. If this does not occur, the catheter will be deflated and removed after 24 hours. Oxytocin will be initiated in those patients who were not in labor after expulsion or removal of the catheter.
Overall Study
STARTED
100
100
Overall Study
COMPLETED
92
94
Overall Study
NOT COMPLETED
8
6

Reasons for withdrawal

Reasons for withdrawal
Measure
Misoprostol Group
25mcg of misoprostol per vagina every 4hours per the standard hospital protocol. Once the cervix becomes favorable or if the patient is in active labor, or if there is no progress for 24 hours, misoprostol administration will be discontinued. Further management of labor will depend on the labor team. (25mcg tablets are not available commercially; a 100mcg table is cut into fourths by the hospital pharmacist.)
Misoprostol and Foley Bulb Group
25mcg of misoprostol per vagina every 4hours per the standard hospital protocol. In addition, a foley bulb will be inserted digitally or by direct visualization with the use of a sterile speculum. The foley will be inserted through the internal os and filled with 60cc of normal saline. The catheter will be taped to the patient's inner thigh under gentle traction. When the foley bulb has fallen out (spontaneous expulsion), further management of labor depends on the labor team. If this does not occur, the catheter will be deflated and removed after 24 hours. Oxytocin will be initiated in those patients who were not in labor after expulsion or removal of the catheter.
Overall Study
vaginal bleeding
0
1
Overall Study
received foley
8
0
Overall Study
did not receive foley
0
1
Overall Study
labor after randomization
0
4

Baseline Characteristics

Only participants who had a Cesarean delivery

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Misoprostol Group
n=100 Participants
25mcg of misoprostol per vagina every 4hours per the standard hospital protocol. Once the cervix becomes favorable or if the patient is in active labor, or if there is no progress for 24 hours, misoprostol administration will be discontinued. Further management of labor will depend on the labor team. (25mcg tablets are not available commercially; a 100mcg table is cut into fourths by the hospital pharmacist.)
Misoprostol and Foley Bulb Group
n=100 Participants
25mcg of misoprostol per vagina every 4hours per the standard hospital protocol. In addition, a foley bulb will be inserted digitally or by direct visualization with the use of a sterile speculum. The foley will be inserted through the internal os and filled with 60cc of normal saline. The catheter will be taped to the patient's inner thigh under gentle traction. When the foley bulb has fallen out (spontaneous expulsion), further management of labor depends on the labor team. If this does not occur, the catheter will be deflated and removed after 24 hours. Oxytocin will be initiated in those patients who were not in labor after expulsion or removal of the catheter.
Total
n=200 Participants
Total of all reporting groups
Age, Continuous
31.5 years
STANDARD_DEVIATION 5.9 • n=100 Participants
31.8 years
STANDARD_DEVIATION 6.3 • n=100 Participants
31.6 years
STANDARD_DEVIATION 6.1 • n=200 Participants
Sex: Female, Male
Female
100 Participants
n=100 Participants
100 Participants
n=100 Participants
200 Participants
n=200 Participants
Sex: Female, Male
Male
0 Participants
n=100 Participants
0 Participants
n=100 Participants
0 Participants
n=200 Participants
BMI
31.8 kg/m^2
STANDARD_DEVIATION 6.8 • n=100 Participants
31.22 kg/m^2
STANDARD_DEVIATION 5.7 • n=100 Participants
31.56 kg/m^2
STANDARD_DEVIATION 6.3 • n=200 Participants
Parity
Nulliparous
74 Participants
n=100 Participants
70 Participants
n=100 Participants
144 Participants
n=200 Participants
Parity
Multiparous
26 Participants
n=100 Participants
30 Participants
n=100 Participants
56 Participants
n=200 Participants
Gestational age at delivery
39.4 weeks
STANDARD_DEVIATION 1.4 • n=100 Participants
39.6 weeks
STANDARD_DEVIATION 1.3 • n=100 Participants
39.4 weeks
STANDARD_DEVIATION 1.4 • n=200 Participants
Indication for induction
Oligohydramnios/Polyhydramnios
21 Participants
n=100 Participants
22 Participants
n=100 Participants
43 Participants
n=200 Participants
Indication for induction
Post-EDC
21 Participants
n=100 Participants
21 Participants
n=100 Participants
42 Participants
n=200 Participants
Indication for induction
Hypertensive disorder
28 Participants
n=100 Participants
20 Participants
n=100 Participants
48 Participants
n=200 Participants
Indication for induction
Gestational diabetes/Diabetes
11 Participants
n=100 Participants
11 Participants
n=100 Participants
22 Participants
n=200 Participants
Indication for induction
Advanced maternal age
1 Participants
n=100 Participants
4 Participants
n=100 Participants
5 Participants
n=200 Participants
Indication for induction
Others
18 Participants
n=100 Participants
22 Participants
n=100 Participants
40 Participants
n=200 Participants
Bishop score at misoprostol placement
2.71 units on a scale
STANDARD_DEVIATION 1.78 • n=100 Participants
3.17 units on a scale
STANDARD_DEVIATION 1.94 • n=100 Participants
2.9 units on a scale
STANDARD_DEVIATION 1.8 • n=200 Participants
Mode of delivery
Spontaneous Vaginal Delivery
48 Participants
n=100 Participants
59 Participants
n=100 Participants
107 Participants
n=200 Participants
Mode of delivery
Forceps Vaginal Delivery
2 Participants
n=100 Participants
1 Participants
n=100 Participants
3 Participants
n=200 Participants
Mode of delivery
Vacuum Vaginal Delivery
12 Participants
n=100 Participants
10 Participants
n=100 Participants
22 Participants
n=200 Participants
Mode of delivery
Cesarean Delivery
38 Participants
n=100 Participants
30 Participants
n=100 Participants
68 Participants
n=200 Participants
Indications for cesarean delivery
Non-reassuring Fetal tracing
20 Participants
n=38 Participants • Only participants who had a Cesarean delivery
19 Participants
n=30 Participants • Only participants who had a Cesarean delivery
39 Participants
n=68 Participants • Only participants who had a Cesarean delivery
Indications for cesarean delivery
Arrest of dilation
9 Participants
n=38 Participants • Only participants who had a Cesarean delivery
6 Participants
n=30 Participants • Only participants who had a Cesarean delivery
15 Participants
n=68 Participants • Only participants who had a Cesarean delivery
Indications for cesarean delivery
Arrest of descent
5 Participants
n=38 Participants • Only participants who had a Cesarean delivery
4 Participants
n=30 Participants • Only participants who had a Cesarean delivery
9 Participants
n=68 Participants • Only participants who had a Cesarean delivery
Indications for cesarean delivery
Failed induction of labor
3 Participants
n=38 Participants • Only participants who had a Cesarean delivery
1 Participants
n=30 Participants • Only participants who had a Cesarean delivery
4 Participants
n=68 Participants • Only participants who had a Cesarean delivery
Indications for cesarean delivery
Others
1 Participants
n=38 Participants • Only participants who had a Cesarean delivery
0 Participants
n=30 Participants • Only participants who had a Cesarean delivery
1 Participants
n=68 Participants • Only participants who had a Cesarean delivery
Insurance
Private
59 Participants
n=100 Participants
53 Participants
n=100 Participants
112 Participants
n=200 Participants
Insurance
Service
41 Participants
n=100 Participants
47 Participants
n=100 Participants
88 Participants
n=200 Participants
Anesthesia
None
4 Participants
n=100 Participants
6 Participants
n=100 Participants
10 Participants
n=200 Participants
Anesthesia
Neuraxial anesthesia
96 Participants
n=100 Participants
91 Participants
n=100 Participants
187 Participants
n=200 Participants
Anesthesia
General Anesthesia
0 Participants
n=100 Participants
3 Participants
n=100 Participants
3 Participants
n=200 Participants

PRIMARY outcome

Timeframe: Day 1

During labor from the start of the induction to the delivery

Outcome measures

Outcome measures
Measure
Misoprostol Group
n=100 Participants
25mcg of misoprostol per vagina every 4hours per the standard hospital protocol. Once the cervix becomes favorable or if the patient is in active labor, or if there is no progress for 24 hours, misoprostol administration will be discontinued. Further management of labor will depend on the labor team. (25mcg tablets are not available commercially; a 100mcg table is cut into fourths by the hospital pharmacist.)
Misoprostol and Foley Bulb Group
n=100 Participants
25mcg of misoprostol per vagina every 4hours per the standard hospital protocol. In addition, a foley bulb will be inserted digitally or by direct visualization with the use of a sterile speculum. The foley will be inserted through the internal os and filled with 60cc of normal saline. The catheter will be taped to the patient's inner thigh under gentle traction. When the foley bulb has fallen out (spontaneous expulsion), further management of labor depends on the labor team. If this does not occur, the catheter will be deflated and removed after 24 hours. Oxytocin will be initiated in those patients who were not in labor after expulsion or removal of the catheter.
The Time Interval From Induction to Delivery: All Participants
20.97 hours
Standard Deviation 10.27
16.27 hours
Standard Deviation 7.6

PRIMARY outcome

Timeframe: Day 1

Population: for nulliparous participants

Outcome measures

Outcome measures
Measure
Misoprostol Group
n=74 Participants
25mcg of misoprostol per vagina every 4hours per the standard hospital protocol. Once the cervix becomes favorable or if the patient is in active labor, or if there is no progress for 24 hours, misoprostol administration will be discontinued. Further management of labor will depend on the labor team. (25mcg tablets are not available commercially; a 100mcg table is cut into fourths by the hospital pharmacist.)
Misoprostol and Foley Bulb Group
n=70 Participants
25mcg of misoprostol per vagina every 4hours per the standard hospital protocol. In addition, a foley bulb will be inserted digitally or by direct visualization with the use of a sterile speculum. The foley will be inserted through the internal os and filled with 60cc of normal saline. The catheter will be taped to the patient's inner thigh under gentle traction. When the foley bulb has fallen out (spontaneous expulsion), further management of labor depends on the labor team. If this does not occur, the catheter will be deflated and removed after 24 hours. Oxytocin will be initiated in those patients who were not in labor after expulsion or removal of the catheter.
Time (Hours) From Induction to Delivery: Nulliparous
22.7 hours
Standard Deviation 10.58
18.15 hours
Standard Deviation 7.87

PRIMARY outcome

Timeframe: Day 1

Population: for nulliparous participants

Outcome measures

Outcome measures
Measure
Misoprostol Group
n=26 Participants
25mcg of misoprostol per vagina every 4hours per the standard hospital protocol. Once the cervix becomes favorable or if the patient is in active labor, or if there is no progress for 24 hours, misoprostol administration will be discontinued. Further management of labor will depend on the labor team. (25mcg tablets are not available commercially; a 100mcg table is cut into fourths by the hospital pharmacist.)
Misoprostol and Foley Bulb Group
n=30 Participants
25mcg of misoprostol per vagina every 4hours per the standard hospital protocol. In addition, a foley bulb will be inserted digitally or by direct visualization with the use of a sterile speculum. The foley will be inserted through the internal os and filled with 60cc of normal saline. The catheter will be taped to the patient's inner thigh under gentle traction. When the foley bulb has fallen out (spontaneous expulsion), further management of labor depends on the labor team. If this does not occur, the catheter will be deflated and removed after 24 hours. Oxytocin will be initiated in those patients who were not in labor after expulsion or removal of the catheter.
Time (Hours) From Induction to Delivery: Multiparous
15.99 hours
Standard Deviation 7.4
11.89 hours
Standard Deviation 4.6

PRIMARY outcome

Timeframe: Day 1

Time (hours) from induction to delivery: Vaginal Delivery (VD)

Outcome measures

Outcome measures
Measure
Misoprostol Group
n=62 Participants
25mcg of misoprostol per vagina every 4hours per the standard hospital protocol. Once the cervix becomes favorable or if the patient is in active labor, or if there is no progress for 24 hours, misoprostol administration will be discontinued. Further management of labor will depend on the labor team. (25mcg tablets are not available commercially; a 100mcg table is cut into fourths by the hospital pharmacist.)
Misoprostol and Foley Bulb Group
n=70 Participants
25mcg of misoprostol per vagina every 4hours per the standard hospital protocol. In addition, a foley bulb will be inserted digitally or by direct visualization with the use of a sterile speculum. The foley will be inserted through the internal os and filled with 60cc of normal saline. The catheter will be taped to the patient's inner thigh under gentle traction. When the foley bulb has fallen out (spontaneous expulsion), further management of labor depends on the labor team. If this does not occur, the catheter will be deflated and removed after 24 hours. Oxytocin will be initiated in those patients who were not in labor after expulsion or removal of the catheter.
Time From Induction to Delivery: VD
18.87 hours
Standard Deviation 8
15.55 hours
Standard Deviation 6.7

PRIMARY outcome

Timeframe: Day 1

Time (hours) from induction to delivery: Cesarean Delivery (CD)

Outcome measures

Outcome measures
Measure
Misoprostol Group
n=38 Participants
25mcg of misoprostol per vagina every 4hours per the standard hospital protocol. Once the cervix becomes favorable or if the patient is in active labor, or if there is no progress for 24 hours, misoprostol administration will be discontinued. Further management of labor will depend on the labor team. (25mcg tablets are not available commercially; a 100mcg table is cut into fourths by the hospital pharmacist.)
Misoprostol and Foley Bulb Group
n=30 Participants
25mcg of misoprostol per vagina every 4hours per the standard hospital protocol. In addition, a foley bulb will be inserted digitally or by direct visualization with the use of a sterile speculum. The foley will be inserted through the internal os and filled with 60cc of normal saline. The catheter will be taped to the patient's inner thigh under gentle traction. When the foley bulb has fallen out (spontaneous expulsion), further management of labor depends on the labor team. If this does not occur, the catheter will be deflated and removed after 24 hours. Oxytocin will be initiated in those patients who were not in labor after expulsion or removal of the catheter.
Time From Induction to Delivery: CD
24.38 hours
Standard Deviation 12.49
17.95 hours
Standard Deviation 9.29

PRIMARY outcome

Timeframe: day 1

Population: those participants on treatment protocol

Outcome measures

Outcome measures
Measure
Misoprostol Group
n=92 Participants
25mcg of misoprostol per vagina every 4hours per the standard hospital protocol. Once the cervix becomes favorable or if the patient is in active labor, or if there is no progress for 24 hours, misoprostol administration will be discontinued. Further management of labor will depend on the labor team. (25mcg tablets are not available commercially; a 100mcg table is cut into fourths by the hospital pharmacist.)
Misoprostol and Foley Bulb Group
n=94 Participants
25mcg of misoprostol per vagina every 4hours per the standard hospital protocol. In addition, a foley bulb will be inserted digitally or by direct visualization with the use of a sterile speculum. The foley will be inserted through the internal os and filled with 60cc of normal saline. The catheter will be taped to the patient's inner thigh under gentle traction. When the foley bulb has fallen out (spontaneous expulsion), further management of labor depends on the labor team. If this does not occur, the catheter will be deflated and removed after 24 hours. Oxytocin will be initiated in those patients who were not in labor after expulsion or removal of the catheter.
Per Treatment Protocol: Time (Hours) From Induction to Delivery
20.5109 hours
Standard Deviation 10.09
16.6814 hours
Standard Deviation 7.47

SECONDARY outcome

Timeframe: Day 1

Outcome measures

Outcome measures
Measure
Misoprostol Group
n=100 Participants
25mcg of misoprostol per vagina every 4hours per the standard hospital protocol. Once the cervix becomes favorable or if the patient is in active labor, or if there is no progress for 24 hours, misoprostol administration will be discontinued. Further management of labor will depend on the labor team. (25mcg tablets are not available commercially; a 100mcg table is cut into fourths by the hospital pharmacist.)
Misoprostol and Foley Bulb Group
n=100 Participants
25mcg of misoprostol per vagina every 4hours per the standard hospital protocol. In addition, a foley bulb will be inserted digitally or by direct visualization with the use of a sterile speculum. The foley will be inserted through the internal os and filled with 60cc of normal saline. The catheter will be taped to the patient's inner thigh under gentle traction. When the foley bulb has fallen out (spontaneous expulsion), further management of labor depends on the labor team. If this does not occur, the catheter will be deflated and removed after 24 hours. Oxytocin will be initiated in those patients who were not in labor after expulsion or removal of the catheter.
The Time From Induction Until to Active Phase Labor
17.43 hours
Standard Deviation 8.6
12.81 hours
Standard Deviation 5.83

SECONDARY outcome

Timeframe: Day 1

Outcome measures

Outcome measures
Measure
Misoprostol Group
n=100 Participants
25mcg of misoprostol per vagina every 4hours per the standard hospital protocol. Once the cervix becomes favorable or if the patient is in active labor, or if there is no progress for 24 hours, misoprostol administration will be discontinued. Further management of labor will depend on the labor team. (25mcg tablets are not available commercially; a 100mcg table is cut into fourths by the hospital pharmacist.)
Misoprostol and Foley Bulb Group
n=100 Participants
25mcg of misoprostol per vagina every 4hours per the standard hospital protocol. In addition, a foley bulb will be inserted digitally or by direct visualization with the use of a sterile speculum. The foley will be inserted through the internal os and filled with 60cc of normal saline. The catheter will be taped to the patient's inner thigh under gentle traction. When the foley bulb has fallen out (spontaneous expulsion), further management of labor depends on the labor team. If this does not occur, the catheter will be deflated and removed after 24 hours. Oxytocin will be initiated in those patients who were not in labor after expulsion or removal of the catheter.
The Time From Active Phase to Delivery
3.11 hours
Standard Deviation 2.75
3.76 hours
Standard Deviation 3

SECONDARY outcome

Timeframe: Day 1

Outcome measures

Outcome measures
Measure
Misoprostol Group
n=100 Participants
25mcg of misoprostol per vagina every 4hours per the standard hospital protocol. Once the cervix becomes favorable or if the patient is in active labor, or if there is no progress for 24 hours, misoprostol administration will be discontinued. Further management of labor will depend on the labor team. (25mcg tablets are not available commercially; a 100mcg table is cut into fourths by the hospital pharmacist.)
Misoprostol and Foley Bulb Group
n=100 Participants
25mcg of misoprostol per vagina every 4hours per the standard hospital protocol. In addition, a foley bulb will be inserted digitally or by direct visualization with the use of a sterile speculum. The foley will be inserted through the internal os and filled with 60cc of normal saline. The catheter will be taped to the patient's inner thigh under gentle traction. When the foley bulb has fallen out (spontaneous expulsion), further management of labor depends on the labor team. If this does not occur, the catheter will be deflated and removed after 24 hours. Oxytocin will be initiated in those patients who were not in labor after expulsion or removal of the catheter.
Incidence of Chorioamnionitis
8 Participants
4 Participants

SECONDARY outcome

Timeframe: Day 1

Outcome measures

Outcome measures
Measure
Misoprostol Group
n=100 Participants
25mcg of misoprostol per vagina every 4hours per the standard hospital protocol. Once the cervix becomes favorable or if the patient is in active labor, or if there is no progress for 24 hours, misoprostol administration will be discontinued. Further management of labor will depend on the labor team. (25mcg tablets are not available commercially; a 100mcg table is cut into fourths by the hospital pharmacist.)
Misoprostol and Foley Bulb Group
n=100 Participants
25mcg of misoprostol per vagina every 4hours per the standard hospital protocol. In addition, a foley bulb will be inserted digitally or by direct visualization with the use of a sterile speculum. The foley will be inserted through the internal os and filled with 60cc of normal saline. The catheter will be taped to the patient's inner thigh under gentle traction. When the foley bulb has fallen out (spontaneous expulsion), further management of labor depends on the labor team. If this does not occur, the catheter will be deflated and removed after 24 hours. Oxytocin will be initiated in those patients who were not in labor after expulsion or removal of the catheter.
Incidence of Uterine Tachysystole
12 Participants
6 Participants

SECONDARY outcome

Timeframe: Day 1

Population: data not collected

Outcome measures

Outcome data not reported

SECONDARY outcome

Timeframe: Day 1

Outcome measures

Outcome measures
Measure
Misoprostol Group
n=100 Participants
25mcg of misoprostol per vagina every 4hours per the standard hospital protocol. Once the cervix becomes favorable or if the patient is in active labor, or if there is no progress for 24 hours, misoprostol administration will be discontinued. Further management of labor will depend on the labor team. (25mcg tablets are not available commercially; a 100mcg table is cut into fourths by the hospital pharmacist.)
Misoprostol and Foley Bulb Group
n=100 Participants
25mcg of misoprostol per vagina every 4hours per the standard hospital protocol. In addition, a foley bulb will be inserted digitally or by direct visualization with the use of a sterile speculum. The foley will be inserted through the internal os and filled with 60cc of normal saline. The catheter will be taped to the patient's inner thigh under gentle traction. When the foley bulb has fallen out (spontaneous expulsion), further management of labor depends on the labor team. If this does not occur, the catheter will be deflated and removed after 24 hours. Oxytocin will be initiated in those patients who were not in labor after expulsion or removal of the catheter.
Estimated Blood Loss
493.3 ml
Standard Deviation 274
490.5 ml
Standard Deviation 304.1

Adverse Events

Misoprostol Group

Serious events: 0 serious events
Other events: 0 other events
Deaths: 0 deaths

Misoprostol and Foley Bulb Group

Serious events: 0 serious events
Other events: 0 other events
Deaths: 0 deaths

Serious adverse events

Adverse event data not reported

Other adverse events

Adverse event data not reported

Additional Information

Dr. Zainab Al-Ibraheemi

Mount Sinai Health Systems

Results disclosure agreements

  • Principal investigator is a sponsor employee
  • Publication restrictions are in place