Trial Outcomes & Findings for RCT of Progesterone to Prevent Preterm Birth in Nulliparous Women With a Short Cervix (NCT NCT00439374)

NCT ID: NCT00439374

Last Updated: 2019-07-15

Results Overview

Number of participants delivering before 37 weeks gestation by indication

Recruitment status

TERMINATED

Study phase

PHASE3

Target enrollment

657 participants

Primary outcome timeframe

Delivery before 37 weeks gestation

Results posted on

2019-07-15

Participant Flow

From April 2007 through May 2011, the fourteen centers of the Maternal-Fetal Medicine Units Network of the Eunice Kennedy Shriver National Institute of Child Health and Human Development participated in this randomized double-blind placebo-controlled trial. Eligible women were offered participation.

Women who signed informed consent received a "compliance" injection of the placebo and were asked to return at least 3 days later for randomization. If a woman did not return for a randomization visit before 23 weeks 0 days of gestation, she was excluded.

Participant milestones

Participant milestones
Measure
17 Alpha-hydroxyprogesterone Caproate
17 alpha-hydroxyprogesterone caproate 17 alpha-hydroxyprogesterone caproate : Coded study medication is sterile solution containing 250 mg/mL of 17 alpha-hydroxyprogesterone caproate in castor oil with benzyl benzoate and benzyl alcohol as a preservative; placebo is same without the active ingredient. Study drug is administered as weekly 1 ml intramuscular injections until 36 week 6 days of gestation or delivery, whichever occurs first.
Placebo
castor oil
Overall Study
STARTED
327
330
Overall Study
COMPLETED
327
330
Overall Study
NOT COMPLETED
0
0

Reasons for withdrawal

Withdrawal data not reported

Baseline Characteristics

Includes only the patients that had a cervical funnel present.

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
17 Alpha-hydroxyprogesterone Caproate
n=327 Participants
17 alpha-hydroxyprogesterone caproate 17 alpha-hydroxyprogesterone caproate : Coded study medication is sterile solution containing 250 mg/mL of 17 alpha-hydroxyprogesterone caproate in castor oil with benzyl benzoate and benzyl alcohol as a preservative; placebo is same without the active ingredient. Study drug is administered as weekly 1 ml intramuscular injections until 36 week 6 days of gestation or delivery, whichever occurs first.
Placebo
n=330 Participants
castor oil
Total
n=657 Participants
Total of all reporting groups
Age, Continuous
22.8 years
STANDARD_DEVIATION 5.3 • n=327 Participants
21.6 years
STANDARD_DEVIATION 4.4 • n=330 Participants
22.2 years
STANDARD_DEVIATION 4.9 • n=657 Participants
Sex: Female, Male
Female
327 Participants
n=327 Participants
330 Participants
n=330 Participants
657 Participants
n=657 Participants
Sex: Female, Male
Male
0 Participants
n=327 Participants
0 Participants
n=330 Participants
0 Participants
n=657 Participants
Race/Ethnicity, Customized
Non-Hispanic white
76 Participants
n=327 Participants
74 Participants
n=330 Participants
150 Participants
n=657 Participants
Race/Ethnicity, Customized
Non-hispanic black
179 Participants
n=327 Participants
161 Participants
n=330 Participants
340 Participants
n=657 Participants
Race/Ethnicity, Customized
Hispanic white
19 Participants
n=327 Participants
38 Participants
n=330 Participants
57 Participants
n=657 Participants
Race/Ethnicity, Customized
Hispanic black
2 Participants
n=327 Participants
0 Participants
n=330 Participants
2 Participants
n=657 Participants
Race/Ethnicity, Customized
Asian
4 Participants
n=327 Participants
3 Participants
n=330 Participants
7 Participants
n=657 Participants
Race/Ethnicity, Customized
Other
47 Participants
n=327 Participants
54 Participants
n=330 Participants
101 Participants
n=657 Participants
Prepregnancy body mass index
26.1 kg^m2
STANDARD_DEVIATION 6.9 • n=327 Participants
25.4 kg^m2
STANDARD_DEVIATION 6.5 • n=330 Participants
25.7 kg^m2
STANDARD_DEVIATION 6.7 • n=657 Participants
Prior Pregnancy
<13 wk of gestation
92 Participants
n=327 Participants
82 Participants
n=330 Participants
174 Participants
n=657 Participants
Prior Pregnancy
13-19 wk of gestation
13 Participants
n=327 Participants
10 Participants
n=330 Participants
23 Participants
n=657 Participants
Payment for obstetric care
Uninsured/self-pay
17 Participants
n=327 Participants
30 Participants
n=330 Participants
47 Participants
n=657 Participants
Payment for obstetric care
Private insurance
74 Participants
n=327 Participants
62 Participants
n=330 Participants
136 Participants
n=657 Participants
Payment for obstetric care
Government-assisted insurance
236 Participants
n=327 Participants
238 Participants
n=330 Participants
474 Participants
n=657 Participants
Married or living with partner
125 Participants
n=327 Participants
110 Participants
n=330 Participants
235 Participants
n=657 Participants
Alcohol use during pregnancy
33 Participants
n=327 Participants
20 Participants
n=330 Participants
53 Participants
n=657 Participants
Smoking during pregnancy
48 Participants
n=327 Participants
62 Participants
n=330 Participants
110 Participants
n=657 Participants
Illicit substance use during pregnancy
15 Participants
n=327 Participants
24 Participants
n=330 Participants
39 Participants
n=657 Participants
Gestational age at randomization
21.4 weeks
STANDARD_DEVIATION 1.2 • n=327 Participants
21.3 weeks
STANDARD_DEVIATION 1.3 • n=330 Participants
21.4 weeks
STANDARD_DEVIATION 1.3 • n=657 Participants
Cervical length at screening
23.9 mm
STANDARD_DEVIATION 5.6 • n=327 Participants
23.8 mm
STANDARD_DEVIATION 5.7 • n=330 Participants
23.8 mm
STANDARD_DEVIATION 5.7 • n=657 Participants
Cervical length at screening <15mm
25 Participants
n=327 Participants
31 Participants
n=330 Participants
56 Participants
n=657 Participants
Cervical funnel present
88 Participants
n=327 Participants
69 Participants
n=330 Participants
157 Participants
n=657 Participants
Cervical funnel length
14.8 mm
STANDARD_DEVIATION 8.0 • n=88 Participants • Includes only the patients that had a cervical funnel present.
16.7 mm
STANDARD_DEVIATION 8.7 • n=69 Participants • Includes only the patients that had a cervical funnel present.
15.6 mm
STANDARD_DEVIATION 8.4 • n=157 Participants • Includes only the patients that had a cervical funnel present.
Debris present
39 Participants
n=327 Participants
39 Participants
n=330 Participants
78 Participants
n=657 Participants

PRIMARY outcome

Timeframe: Delivery before 37 weeks gestation

Number of participants delivering before 37 weeks gestation by indication

Outcome measures

Outcome measures
Measure
17 Alpha-hydroxyprogesterone Caproate
n=327 Participants
17 alpha-hydroxyprogesterone caproate 17 alpha-hydroxyprogesterone caproate : Coded study medication is sterile solution containing 250 mg/mL of 17 alpha-hydroxyprogesterone caproate in castor oil with benzyl benzoate and benzyl alcohol as a preservative; placebo is same without the active ingredient. Study drug is administered as weekly 1 ml intramuscular injections until 36 week 6 days of gestation or delivery, whichever occurs first.
Placebo
n=330 Participants
castor oil
Number of Participants Delivering Before 37 Weeks Gestation
Total Delivery <37 wk
82 Participants
80 Participants
Number of Participants Delivering Before 37 Weeks Gestation
Spontaneous
54 Participants
55 Participants
Number of Participants Delivering Before 37 Weeks Gestation
Medically indicated
27 Participants
25 Participants
Number of Participants Delivering Before 37 Weeks Gestation
Fetal loss/abortion <20 wk
1 Participants
0 Participants

SECONDARY outcome

Timeframe: Delivery

Mean gestational age at delivery

Outcome measures

Outcome measures
Measure
17 Alpha-hydroxyprogesterone Caproate
n=327 Participants
17 alpha-hydroxyprogesterone caproate 17 alpha-hydroxyprogesterone caproate : Coded study medication is sterile solution containing 250 mg/mL of 17 alpha-hydroxyprogesterone caproate in castor oil with benzyl benzoate and benzyl alcohol as a preservative; placebo is same without the active ingredient. Study drug is administered as weekly 1 ml intramuscular injections until 36 week 6 days of gestation or delivery, whichever occurs first.
Placebo
n=330 Participants
castor oil
Mean Gestational Age at Delivery
37.6 weeks
Standard Deviation 3.9
37.4 weeks
Standard Deviation 4.3

SECONDARY outcome

Timeframe: <37 weeks

Outcome measures

Outcome measures
Measure
17 Alpha-hydroxyprogesterone Caproate
n=327 Participants
17 alpha-hydroxyprogesterone caproate 17 alpha-hydroxyprogesterone caproate : Coded study medication is sterile solution containing 250 mg/mL of 17 alpha-hydroxyprogesterone caproate in castor oil with benzyl benzoate and benzyl alcohol as a preservative; placebo is same without the active ingredient. Study drug is administered as weekly 1 ml intramuscular injections until 36 week 6 days of gestation or delivery, whichever occurs first.
Placebo
n=330 Participants
castor oil
Number of Participants With Preterm Premature Rupture of Membranes
25 Participants
24 Participants

SECONDARY outcome

Timeframe: Delivery

Delivery before 35 weeks gestation

Outcome measures

Outcome measures
Measure
17 Alpha-hydroxyprogesterone Caproate
n=327 Participants
17 alpha-hydroxyprogesterone caproate 17 alpha-hydroxyprogesterone caproate : Coded study medication is sterile solution containing 250 mg/mL of 17 alpha-hydroxyprogesterone caproate in castor oil with benzyl benzoate and benzyl alcohol as a preservative; placebo is same without the active ingredient. Study drug is administered as weekly 1 ml intramuscular injections until 36 week 6 days of gestation or delivery, whichever occurs first.
Placebo
n=330 Participants
castor oil
Number of Participants Who Delivered Before 35 Weeks Gestation
44 Participants
53 Participants

SECONDARY outcome

Timeframe: Delivery

Delivery before 32 weeks gestation

Outcome measures

Outcome measures
Measure
17 Alpha-hydroxyprogesterone Caproate
n=327 Participants
17 alpha-hydroxyprogesterone caproate 17 alpha-hydroxyprogesterone caproate : Coded study medication is sterile solution containing 250 mg/mL of 17 alpha-hydroxyprogesterone caproate in castor oil with benzyl benzoate and benzyl alcohol as a preservative; placebo is same without the active ingredient. Study drug is administered as weekly 1 ml intramuscular injections until 36 week 6 days of gestation or delivery, whichever occurs first.
Placebo
n=330 Participants
castor oil
Number of Participants Who Delivered Before 32 Weeks Gestation
28 Participants
32 Participants

SECONDARY outcome

Timeframe: Delivery

Delivery before 28 weeks gestation

Outcome measures

Outcome measures
Measure
17 Alpha-hydroxyprogesterone Caproate
n=327 Participants
17 alpha-hydroxyprogesterone caproate 17 alpha-hydroxyprogesterone caproate : Coded study medication is sterile solution containing 250 mg/mL of 17 alpha-hydroxyprogesterone caproate in castor oil with benzyl benzoate and benzyl alcohol as a preservative; placebo is same without the active ingredient. Study drug is administered as weekly 1 ml intramuscular injections until 36 week 6 days of gestation or delivery, whichever occurs first.
Placebo
n=330 Participants
castor oil
Number of Participants Who Delivered Before 28 Weeks Gestation
15 Participants
22 Participants

SECONDARY outcome

Timeframe: Between randomization and 37 weeks gestation

Number of participants who visited the hospital due to preterm labor before 37 weeks gestation

Outcome measures

Outcome measures
Measure
17 Alpha-hydroxyprogesterone Caproate
n=327 Participants
17 alpha-hydroxyprogesterone caproate 17 alpha-hydroxyprogesterone caproate : Coded study medication is sterile solution containing 250 mg/mL of 17 alpha-hydroxyprogesterone caproate in castor oil with benzyl benzoate and benzyl alcohol as a preservative; placebo is same without the active ingredient. Study drug is administered as weekly 1 ml intramuscular injections until 36 week 6 days of gestation or delivery, whichever occurs first.
Placebo
n=330 Participants
castor oil
Number of Participants Who Visited the Hospital Due to Preterm Labor
145 Participants
151 Participants

SECONDARY outcome

Timeframe: Any time during pregnancy from randomization to delivery, a timeframe up to 20 weeks

Population: Data was missing for 6 participants in the treatment group and 5 participants in the placebo group.

Number of participants who underwent tocolytic therapy during pregnancy

Outcome measures

Outcome measures
Measure
17 Alpha-hydroxyprogesterone Caproate
n=321 Participants
17 alpha-hydroxyprogesterone caproate 17 alpha-hydroxyprogesterone caproate : Coded study medication is sterile solution containing 250 mg/mL of 17 alpha-hydroxyprogesterone caproate in castor oil with benzyl benzoate and benzyl alcohol as a preservative; placebo is same without the active ingredient. Study drug is administered as weekly 1 ml intramuscular injections until 36 week 6 days of gestation or delivery, whichever occurs first.
Placebo
n=325 Participants
castor oil
Number of Participants Who Underwent Tocolytic Therapy
35 Participants
42 Participants

SECONDARY outcome

Timeframe: Any time during pregnancy from randomization to delivery, a timeframe up to 20 weeks

Population: Data was missing for 6 participants in the treatment group and 5 participants in the placebo group.

Number of participants who underwent corticosteroid therapy in pregnancy

Outcome measures

Outcome measures
Measure
17 Alpha-hydroxyprogesterone Caproate
n=321 Participants
17 alpha-hydroxyprogesterone caproate 17 alpha-hydroxyprogesterone caproate : Coded study medication is sterile solution containing 250 mg/mL of 17 alpha-hydroxyprogesterone caproate in castor oil with benzyl benzoate and benzyl alcohol as a preservative; placebo is same without the active ingredient. Study drug is administered as weekly 1 ml intramuscular injections until 36 week 6 days of gestation or delivery, whichever occurs first.
Placebo
n=325 Participants
castor oil
Number of Participants Who Underwent Corticosteroid Therapy
55 Participants
51 Participants

SECONDARY outcome

Timeframe: Any time during pregnancy from randomization to delivery, a timeframe up to 20 weeks

Population: Data was missing for 6 participants in the treatment group and 5 participants in the placebo group.

Number of participants who had a cerclage placement

Outcome measures

Outcome measures
Measure
17 Alpha-hydroxyprogesterone Caproate
n=321 Participants
17 alpha-hydroxyprogesterone caproate 17 alpha-hydroxyprogesterone caproate : Coded study medication is sterile solution containing 250 mg/mL of 17 alpha-hydroxyprogesterone caproate in castor oil with benzyl benzoate and benzyl alcohol as a preservative; placebo is same without the active ingredient. Study drug is administered as weekly 1 ml intramuscular injections until 36 week 6 days of gestation or delivery, whichever occurs first.
Placebo
n=325 Participants
castor oil
Number of Participants Who Had a Cerclage Placement
6 Participants
4 Participants

SECONDARY outcome

Timeframe: Any time during pregnancy from randomization to delivery, a timeframe up to 20 weeks

Population: Data was missing for 1 participant in the placebo group.

Outcome measures

Outcome measures
Measure
17 Alpha-hydroxyprogesterone Caproate
n=327 Participants
17 alpha-hydroxyprogesterone caproate 17 alpha-hydroxyprogesterone caproate : Coded study medication is sterile solution containing 250 mg/mL of 17 alpha-hydroxyprogesterone caproate in castor oil with benzyl benzoate and benzyl alcohol as a preservative; placebo is same without the active ingredient. Study drug is administered as weekly 1 ml intramuscular injections until 36 week 6 days of gestation or delivery, whichever occurs first.
Placebo
n=329 Participants
castor oil
Number of Participants Experiencing Gestational Hypertension or Preeclampsia
46 Participants
40 Participants

SECONDARY outcome

Timeframe: Any time during pregnancy from randomization to delivery, a timeframe up to 20 weeks

Outcome measures

Outcome measures
Measure
17 Alpha-hydroxyprogesterone Caproate
n=327 Participants
17 alpha-hydroxyprogesterone caproate 17 alpha-hydroxyprogesterone caproate : Coded study medication is sterile solution containing 250 mg/mL of 17 alpha-hydroxyprogesterone caproate in castor oil with benzyl benzoate and benzyl alcohol as a preservative; placebo is same without the active ingredient. Study drug is administered as weekly 1 ml intramuscular injections until 36 week 6 days of gestation or delivery, whichever occurs first.
Placebo
n=330 Participants
castor oil
Number of Participants With Gestational Diabetes Mellitus
15 Participants
13 Participants

SECONDARY outcome

Timeframe: Any time during pregnancy from randomization to delivery, a timeframe up to 20 weeks

Population: Data was missing for 1 participant in the Placebo group

Outcome measures

Outcome measures
Measure
17 Alpha-hydroxyprogesterone Caproate
n=327 Participants
17 alpha-hydroxyprogesterone caproate 17 alpha-hydroxyprogesterone caproate : Coded study medication is sterile solution containing 250 mg/mL of 17 alpha-hydroxyprogesterone caproate in castor oil with benzyl benzoate and benzyl alcohol as a preservative; placebo is same without the active ingredient. Study drug is administered as weekly 1 ml intramuscular injections until 36 week 6 days of gestation or delivery, whichever occurs first.
Placebo
n=329 Participants
castor oil
Number of Participants Experiencing Cholestasis
1 Participants
0 Participants

SECONDARY outcome

Timeframe: Any time during pregnancy from randomization to delivery, a timeframe up to 20 weeks

Population: Data was missing for 2 participants in the placebo group.

Outcome measures

Outcome measures
Measure
17 Alpha-hydroxyprogesterone Caproate
n=327 Participants
17 alpha-hydroxyprogesterone caproate 17 alpha-hydroxyprogesterone caproate : Coded study medication is sterile solution containing 250 mg/mL of 17 alpha-hydroxyprogesterone caproate in castor oil with benzyl benzoate and benzyl alcohol as a preservative; placebo is same without the active ingredient. Study drug is administered as weekly 1 ml intramuscular injections until 36 week 6 days of gestation or delivery, whichever occurs first.
Placebo
n=328 Participants
castor oil
Number of Participants Who Experienced Placental Abruption
11 Participants
15 Participants

SECONDARY outcome

Timeframe: Any time during pregnancy from randomization to delivery, a timeframe up to 20 weeks

Population: Data was missing for 2 participants in the placebo group.

Outcome measures

Outcome measures
Measure
17 Alpha-hydroxyprogesterone Caproate
n=327 Participants
17 alpha-hydroxyprogesterone caproate 17 alpha-hydroxyprogesterone caproate : Coded study medication is sterile solution containing 250 mg/mL of 17 alpha-hydroxyprogesterone caproate in castor oil with benzyl benzoate and benzyl alcohol as a preservative; placebo is same without the active ingredient. Study drug is administered as weekly 1 ml intramuscular injections until 36 week 6 days of gestation or delivery, whichever occurs first.
Placebo
n=328 Participants
castor oil
Number of Participants Who Experienced Chorioamnionitis
29 Participants
20 Participants

SECONDARY outcome

Timeframe: delivery

Population: Data was missing for 1 participant in the placebo group.

Outcome measures

Outcome measures
Measure
17 Alpha-hydroxyprogesterone Caproate
n=327 Participants
17 alpha-hydroxyprogesterone caproate 17 alpha-hydroxyprogesterone caproate : Coded study medication is sterile solution containing 250 mg/mL of 17 alpha-hydroxyprogesterone caproate in castor oil with benzyl benzoate and benzyl alcohol as a preservative; placebo is same without the active ingredient. Study drug is administered as weekly 1 ml intramuscular injections until 36 week 6 days of gestation or delivery, whichever occurs first.
Placebo
n=329 Participants
castor oil
Number of Participants Who Had Cesarean Delivery
67 Participants
63 Participants

SECONDARY outcome

Timeframe: Any time during pregnancy from randomization to delivery, a timeframe up to 20 weeks

Population: Data was missing for 1 participant in the treatment group and 2 participants in the placebo group.

Number of participants who reported any side effect, nausea, urticaria, and/or an issue at the injection site

Outcome measures

Outcome measures
Measure
17 Alpha-hydroxyprogesterone Caproate
n=326 Participants
17 alpha-hydroxyprogesterone caproate 17 alpha-hydroxyprogesterone caproate : Coded study medication is sterile solution containing 250 mg/mL of 17 alpha-hydroxyprogesterone caproate in castor oil with benzyl benzoate and benzyl alcohol as a preservative; placebo is same without the active ingredient. Study drug is administered as weekly 1 ml intramuscular injections until 36 week 6 days of gestation or delivery, whichever occurs first.
Placebo
n=328 Participants
castor oil
Number of Participants Who Reported Side Effects
Any
223 Participants
220 Participants
Number of Participants Who Reported Side Effects
Injection site
217 Participants
209 Participants
Number of Participants Who Reported Side Effects
Urticaria
10 Participants
2 Participants
Number of Participants Who Reported Side Effects
Nausea
7 Participants
10 Participants

SECONDARY outcome

Timeframe: within 72 hours of delivery

Population: With the exception of the composite outcome and death, the neonatal outcomes were only measured for live births.

comprised of fetal or infant death, respiratory distress syndrome, intraventricular hemorrhage (grades 3 and 4), periventricular leukomalacia, necrotizing enterocolitis (stage II and III), Bronchopulmonary dysplasia /chronic lung disease, retinopathy of prematurity (stage III or higher), early onset sepsis

Outcome measures

Outcome measures
Measure
17 Alpha-hydroxyprogesterone Caproate
n=327 Participants
17 alpha-hydroxyprogesterone caproate 17 alpha-hydroxyprogesterone caproate : Coded study medication is sterile solution containing 250 mg/mL of 17 alpha-hydroxyprogesterone caproate in castor oil with benzyl benzoate and benzyl alcohol as a preservative; placebo is same without the active ingredient. Study drug is administered as weekly 1 ml intramuscular injections until 36 week 6 days of gestation or delivery, whichever occurs first.
Placebo
n=330 Participants
castor oil
Number of Participants Meeting the Composite Adverse Perinatal Outcome and Components
Composite Outcome Total
23 Participants
30 Participants
Number of Participants Meeting the Composite Adverse Perinatal Outcome and Components
Fetal Death
4 Participants
1 Participants
Number of Participants Meeting the Composite Adverse Perinatal Outcome and Components
Neonatal Death
6 Participants
8 Participants
Number of Participants Meeting the Composite Adverse Perinatal Outcome and Components
Respiratory Distress Syndrome
13 Participants
16 Participants
Number of Participants Meeting the Composite Adverse Perinatal Outcome and Components
Bronchopulmonary dysplasia
3 Participants
5 Participants
Number of Participants Meeting the Composite Adverse Perinatal Outcome and Components
Necrotizing enterocolitis, grade II or III
2 Participants
5 Participants
Number of Participants Meeting the Composite Adverse Perinatal Outcome and Components
Intraventricular Hemorrhage, Grade III or IV
2 Participants
1 Participants
Number of Participants Meeting the Composite Adverse Perinatal Outcome and Components
Periventricular Leukomalacia
4 Participants
1 Participants
Number of Participants Meeting the Composite Adverse Perinatal Outcome and Components
Early-onset Sepsis
3 Participants
11 Participants
Number of Participants Meeting the Composite Adverse Perinatal Outcome and Components
Retinopathy of prematurity, grade II or IV
1 Participants
3 Participants

SECONDARY outcome

Timeframe: Delivery

Birth weight as measured in grams

Outcome measures

Outcome measures
Measure
17 Alpha-hydroxyprogesterone Caproate
n=327 Participants
17 alpha-hydroxyprogesterone caproate 17 alpha-hydroxyprogesterone caproate : Coded study medication is sterile solution containing 250 mg/mL of 17 alpha-hydroxyprogesterone caproate in castor oil with benzyl benzoate and benzyl alcohol as a preservative; placebo is same without the active ingredient. Study drug is administered as weekly 1 ml intramuscular injections until 36 week 6 days of gestation or delivery, whichever occurs first.
Placebo
n=330 Participants
castor oil
Mean Birth Weight
2855 Grams
Standard Deviation 747
2824 Grams
Standard Deviation 807

SECONDARY outcome

Timeframe: Delivery

Population: Data was missing for 4 participants in the treatment group and 2 participants in the placebo group.

Birth weight by count of participants \< 2500 grams and \< 1500 grams

Outcome measures

Outcome measures
Measure
17 Alpha-hydroxyprogesterone Caproate
n=323 Participants
17 alpha-hydroxyprogesterone caproate 17 alpha-hydroxyprogesterone caproate : Coded study medication is sterile solution containing 250 mg/mL of 17 alpha-hydroxyprogesterone caproate in castor oil with benzyl benzoate and benzyl alcohol as a preservative; placebo is same without the active ingredient. Study drug is administered as weekly 1 ml intramuscular injections until 36 week 6 days of gestation or delivery, whichever occurs first.
Placebo
n=328 Participants
castor oil
Birth Weight by Count of Participants
Birth weight < 2500g
72 Participants
75 Participants
Birth Weight by Count of Participants
Birth weight < 1500g
23 Participants
29 Participants

SECONDARY outcome

Timeframe: Delivery

Population: Data was missing for 4 participants in the treatment group and 2 participants in the placebo group.

Birth weight percentile and small for gestational age \<10th percentile based on number of weeks and gender.

Outcome measures

Outcome measures
Measure
17 Alpha-hydroxyprogesterone Caproate
n=323 Participants
17 alpha-hydroxyprogesterone caproate 17 alpha-hydroxyprogesterone caproate : Coded study medication is sterile solution containing 250 mg/mL of 17 alpha-hydroxyprogesterone caproate in castor oil with benzyl benzoate and benzyl alcohol as a preservative; placebo is same without the active ingredient. Study drug is administered as weekly 1 ml intramuscular injections until 36 week 6 days of gestation or delivery, whichever occurs first.
Placebo
n=328 Participants
castor oil
Number of Neonates Who Measured Small for Gestational Age
< 10th percentile
54 Participants
47 Participants
Number of Neonates Who Measured Small for Gestational Age
< 3rd percentile
15 Participants
14 Participants

SECONDARY outcome

Timeframe: 5 minutes post delivery

Population: Data was missing for 4 participants in the treatment group and 2 participants in the placebo group.

The Apgar score is a simple method of quickly assessing the health and vital signs of a newborn baby created by and named after Dr. Virginia Apgar. Apgar testing assesses Appearance, Pulse, Grimace and Activity in a newborn and is typically done at one and five minutes after a baby is born, and it may be repeated at 10, 15, and 20 minutes if the score is low. The five criteria are each scored as 0, 1, or 2 (two being the best), and the total score is calculated by then adding the five values obtained. Agar scores of 0-3 are critically low, 4-6 are below normal, and indicate that the baby likely requires medical intervention, scores of 7+ are considered normal. The lower the Apgar score, the more alert the medical team should be to the possibility of the baby requiring intervention. Some components of the Apgar score are subjective, and there are cases in which a baby requires urgent medical treatment despite having a high Apgar score.

Outcome measures

Outcome measures
Measure
17 Alpha-hydroxyprogesterone Caproate
n=323 Participants
17 alpha-hydroxyprogesterone caproate 17 alpha-hydroxyprogesterone caproate : Coded study medication is sterile solution containing 250 mg/mL of 17 alpha-hydroxyprogesterone caproate in castor oil with benzyl benzoate and benzyl alcohol as a preservative; placebo is same without the active ingredient. Study drug is administered as weekly 1 ml intramuscular injections until 36 week 6 days of gestation or delivery, whichever occurs first.
Placebo
n=328 Participants
castor oil
Number of Participants With Apgar Score of Less Than 7 at 5 Minutes
15 Participants
19 Participants

SECONDARY outcome

Timeframe: Delivery

Population: Data was missing for 1 participant in the treatment group and 2 participants in the placebo group.

Presence of a major congenital anomaly at birth

Outcome measures

Outcome measures
Measure
17 Alpha-hydroxyprogesterone Caproate
n=326 Participants
17 alpha-hydroxyprogesterone caproate 17 alpha-hydroxyprogesterone caproate : Coded study medication is sterile solution containing 250 mg/mL of 17 alpha-hydroxyprogesterone caproate in castor oil with benzyl benzoate and benzyl alcohol as a preservative; placebo is same without the active ingredient. Study drug is administered as weekly 1 ml intramuscular injections until 36 week 6 days of gestation or delivery, whichever occurs first.
Placebo
n=328 Participants
castor oil
Number of Neonates With a Major Congenital Anomaly
6 Participants
2 Participants

SECONDARY outcome

Timeframe: Delivery through neonatal discharge

Population: Data was missing for 7 participants in the treatment group and 8 participants in the placebo group.

Number of neonates diagnosed with the heart defect patent ductus arteriosus

Outcome measures

Outcome measures
Measure
17 Alpha-hydroxyprogesterone Caproate
n=320 Participants
17 alpha-hydroxyprogesterone caproate 17 alpha-hydroxyprogesterone caproate : Coded study medication is sterile solution containing 250 mg/mL of 17 alpha-hydroxyprogesterone caproate in castor oil with benzyl benzoate and benzyl alcohol as a preservative; placebo is same without the active ingredient. Study drug is administered as weekly 1 ml intramuscular injections until 36 week 6 days of gestation or delivery, whichever occurs first.
Placebo
n=322 Participants
castor oil
Number of Neonates With Patent Ductus Arteriosus
2 Participants
8 Participants

SECONDARY outcome

Timeframe: Delivery through neonatal discharge

Population: Data was missing for 7 participants in the treatment group and 8 participants in the placebo group.

Number of neonates experiencing seizures from delivery to hospital discharge

Outcome measures

Outcome measures
Measure
17 Alpha-hydroxyprogesterone Caproate
n=320 Participants
17 alpha-hydroxyprogesterone caproate 17 alpha-hydroxyprogesterone caproate : Coded study medication is sterile solution containing 250 mg/mL of 17 alpha-hydroxyprogesterone caproate in castor oil with benzyl benzoate and benzyl alcohol as a preservative; placebo is same without the active ingredient. Study drug is administered as weekly 1 ml intramuscular injections until 36 week 6 days of gestation or delivery, whichever occurs first.
Placebo
n=322 Participants
castor oil
Number of Neonates Experiencing Seizures
1 Participants
2 Participants

SECONDARY outcome

Timeframe: Delivery through hospital discharge

Population: Data was missing for 5 participants in the treatment group and 1 participant in the placebo group.

Admission to the neonatal intensive care unit

Outcome measures

Outcome measures
Measure
17 Alpha-hydroxyprogesterone Caproate
n=322 Participants
17 alpha-hydroxyprogesterone caproate 17 alpha-hydroxyprogesterone caproate : Coded study medication is sterile solution containing 250 mg/mL of 17 alpha-hydroxyprogesterone caproate in castor oil with benzyl benzoate and benzyl alcohol as a preservative; placebo is same without the active ingredient. Study drug is administered as weekly 1 ml intramuscular injections until 36 week 6 days of gestation or delivery, whichever occurs first.
Placebo
n=329 Participants
castor oil
Number of Neonates Admitted to NICU
63 Participants
69 Participants

SECONDARY outcome

Timeframe: NICU admission through NICU discharge

Population: Data was missing for 5 participants in the treatment group and 1 participant in the placebo group.

Median length of stay in the neonatal intensive care unit in days

Outcome measures

Outcome measures
Measure
17 Alpha-hydroxyprogesterone Caproate
n=322 Participants
17 alpha-hydroxyprogesterone caproate 17 alpha-hydroxyprogesterone caproate : Coded study medication is sterile solution containing 250 mg/mL of 17 alpha-hydroxyprogesterone caproate in castor oil with benzyl benzoate and benzyl alcohol as a preservative; placebo is same without the active ingredient. Study drug is administered as weekly 1 ml intramuscular injections until 36 week 6 days of gestation or delivery, whichever occurs first.
Placebo
n=329 Participants
castor oil
Median Length of NICU Stay
17 days
Interval 6.0 to 43.0
15.5 days
Interval 6.0 to 57.5

Adverse Events

17 Alpha-hydroxyprogesterone Caproate

Serious events: 22 serious events
Other events: 326 other events
Deaths: 0 deaths

Placebo

Serious events: 13 serious events
Other events: 328 other events
Deaths: 0 deaths

Serious adverse events

Serious adverse events
Measure
17 Alpha-hydroxyprogesterone Caproate
n=326 participants at risk;n=327 participants at risk
250 mg of 17 alpha-hydroxyprogesterone caproate given by weekly injection until 37 weeks gestation or delivery 17 alpha-hydroxyprogesterone caproate: Coded study medication is sterile solution containing 250 mg/mL of 17 alpha-hydroxyprogesterone caproate in castor oil with benzyl benzoate and benzyl alcohol as a preservative; placebo is same without the active ingredient. Study drug is administered as weekly 1 ml intramuscular injections until 36 week 6 days of gestation or delivery, whichever occurs first.
Placebo
n=328 participants at risk;n=330 participants at risk
Placebo oil given by weekly injection until 37 weeks gestation or delivery. Placebo Oil: Placebo oil is a 250 mg/mL solution of castor oil with benzyl benzoate and benzyl alcohol as a preservative
Pregnancy, puerperium and perinatal conditions
Miscarriage or stillbirth
1.5%
5/327 • Adverse event data was collected during the study period of April 2007 through June 2010, from the time of the participants randomization through hospital discharge of the mother and baby (up to 60 days).
Other adverse events that are related to side effects are available for patients who had at least 1 study visit. 1 randomized participant in the treatment group and 2 randomized participants in the placebo group did not attend a study visit after randomization. Therefore the Ns for other side effects are different than those for the serious adverse events and the study sample (by 3 participants total).
0.30%
1/330 • Adverse event data was collected during the study period of April 2007 through June 2010, from the time of the participants randomization through hospital discharge of the mother and baby (up to 60 days).
Other adverse events that are related to side effects are available for patients who had at least 1 study visit. 1 randomized participant in the treatment group and 2 randomized participants in the placebo group did not attend a study visit after randomization. Therefore the Ns for other side effects are different than those for the serious adverse events and the study sample (by 3 participants total).
Pregnancy, puerperium and perinatal conditions
Placental abruption
0.61%
2/327 • Adverse event data was collected during the study period of April 2007 through June 2010, from the time of the participants randomization through hospital discharge of the mother and baby (up to 60 days).
Other adverse events that are related to side effects are available for patients who had at least 1 study visit. 1 randomized participant in the treatment group and 2 randomized participants in the placebo group did not attend a study visit after randomization. Therefore the Ns for other side effects are different than those for the serious adverse events and the study sample (by 3 participants total).
0.61%
2/330 • Adverse event data was collected during the study period of April 2007 through June 2010, from the time of the participants randomization through hospital discharge of the mother and baby (up to 60 days).
Other adverse events that are related to side effects are available for patients who had at least 1 study visit. 1 randomized participant in the treatment group and 2 randomized participants in the placebo group did not attend a study visit after randomization. Therefore the Ns for other side effects are different than those for the serious adverse events and the study sample (by 3 participants total).
Pregnancy, puerperium and perinatal conditions
Pregnancy Complications
0.92%
3/327 • Adverse event data was collected during the study period of April 2007 through June 2010, from the time of the participants randomization through hospital discharge of the mother and baby (up to 60 days).
Other adverse events that are related to side effects are available for patients who had at least 1 study visit. 1 randomized participant in the treatment group and 2 randomized participants in the placebo group did not attend a study visit after randomization. Therefore the Ns for other side effects are different than those for the serious adverse events and the study sample (by 3 participants total).
0.91%
3/330 • Adverse event data was collected during the study period of April 2007 through June 2010, from the time of the participants randomization through hospital discharge of the mother and baby (up to 60 days).
Other adverse events that are related to side effects are available for patients who had at least 1 study visit. 1 randomized participant in the treatment group and 2 randomized participants in the placebo group did not attend a study visit after randomization. Therefore the Ns for other side effects are different than those for the serious adverse events and the study sample (by 3 participants total).
Vascular disorders
Chest Pain
0.31%
1/327 • Adverse event data was collected during the study period of April 2007 through June 2010, from the time of the participants randomization through hospital discharge of the mother and baby (up to 60 days).
Other adverse events that are related to side effects are available for patients who had at least 1 study visit. 1 randomized participant in the treatment group and 2 randomized participants in the placebo group did not attend a study visit after randomization. Therefore the Ns for other side effects are different than those for the serious adverse events and the study sample (by 3 participants total).
0.00%
0/330 • Adverse event data was collected during the study period of April 2007 through June 2010, from the time of the participants randomization through hospital discharge of the mother and baby (up to 60 days).
Other adverse events that are related to side effects are available for patients who had at least 1 study visit. 1 randomized participant in the treatment group and 2 randomized participants in the placebo group did not attend a study visit after randomization. Therefore the Ns for other side effects are different than those for the serious adverse events and the study sample (by 3 participants total).
Vascular disorders
Epistaxis
0.31%
1/327 • Adverse event data was collected during the study period of April 2007 through June 2010, from the time of the participants randomization through hospital discharge of the mother and baby (up to 60 days).
Other adverse events that are related to side effects are available for patients who had at least 1 study visit. 1 randomized participant in the treatment group and 2 randomized participants in the placebo group did not attend a study visit after randomization. Therefore the Ns for other side effects are different than those for the serious adverse events and the study sample (by 3 participants total).
0.00%
0/330 • Adverse event data was collected during the study period of April 2007 through June 2010, from the time of the participants randomization through hospital discharge of the mother and baby (up to 60 days).
Other adverse events that are related to side effects are available for patients who had at least 1 study visit. 1 randomized participant in the treatment group and 2 randomized participants in the placebo group did not attend a study visit after randomization. Therefore the Ns for other side effects are different than those for the serious adverse events and the study sample (by 3 participants total).
Cardiac disorders
Maternal Pulmonary edema
0.31%
1/327 • Adverse event data was collected during the study period of April 2007 through June 2010, from the time of the participants randomization through hospital discharge of the mother and baby (up to 60 days).
Other adverse events that are related to side effects are available for patients who had at least 1 study visit. 1 randomized participant in the treatment group and 2 randomized participants in the placebo group did not attend a study visit after randomization. Therefore the Ns for other side effects are different than those for the serious adverse events and the study sample (by 3 participants total).
0.00%
0/330 • Adverse event data was collected during the study period of April 2007 through June 2010, from the time of the participants randomization through hospital discharge of the mother and baby (up to 60 days).
Other adverse events that are related to side effects are available for patients who had at least 1 study visit. 1 randomized participant in the treatment group and 2 randomized participants in the placebo group did not attend a study visit after randomization. Therefore the Ns for other side effects are different than those for the serious adverse events and the study sample (by 3 participants total).
Blood and lymphatic system disorders
Maternal blood disorders
0.61%
2/327 • Adverse event data was collected during the study period of April 2007 through June 2010, from the time of the participants randomization through hospital discharge of the mother and baby (up to 60 days).
Other adverse events that are related to side effects are available for patients who had at least 1 study visit. 1 randomized participant in the treatment group and 2 randomized participants in the placebo group did not attend a study visit after randomization. Therefore the Ns for other side effects are different than those for the serious adverse events and the study sample (by 3 participants total).
0.00%
0/330 • Adverse event data was collected during the study period of April 2007 through June 2010, from the time of the participants randomization through hospital discharge of the mother and baby (up to 60 days).
Other adverse events that are related to side effects are available for patients who had at least 1 study visit. 1 randomized participant in the treatment group and 2 randomized participants in the placebo group did not attend a study visit after randomization. Therefore the Ns for other side effects are different than those for the serious adverse events and the study sample (by 3 participants total).
Congenital, familial and genetic disorders
Congenital Anomalies
1.5%
5/327 • Adverse event data was collected during the study period of April 2007 through June 2010, from the time of the participants randomization through hospital discharge of the mother and baby (up to 60 days).
Other adverse events that are related to side effects are available for patients who had at least 1 study visit. 1 randomized participant in the treatment group and 2 randomized participants in the placebo group did not attend a study visit after randomization. Therefore the Ns for other side effects are different than those for the serious adverse events and the study sample (by 3 participants total).
0.91%
3/330 • Adverse event data was collected during the study period of April 2007 through June 2010, from the time of the participants randomization through hospital discharge of the mother and baby (up to 60 days).
Other adverse events that are related to side effects are available for patients who had at least 1 study visit. 1 randomized participant in the treatment group and 2 randomized participants in the placebo group did not attend a study visit after randomization. Therefore the Ns for other side effects are different than those for the serious adverse events and the study sample (by 3 participants total).
General disorders
Neonatal death
1.8%
6/327 • Adverse event data was collected during the study period of April 2007 through June 2010, from the time of the participants randomization through hospital discharge of the mother and baby (up to 60 days).
Other adverse events that are related to side effects are available for patients who had at least 1 study visit. 1 randomized participant in the treatment group and 2 randomized participants in the placebo group did not attend a study visit after randomization. Therefore the Ns for other side effects are different than those for the serious adverse events and the study sample (by 3 participants total).
2.4%
8/330 • Adverse event data was collected during the study period of April 2007 through June 2010, from the time of the participants randomization through hospital discharge of the mother and baby (up to 60 days).
Other adverse events that are related to side effects are available for patients who had at least 1 study visit. 1 randomized participant in the treatment group and 2 randomized participants in the placebo group did not attend a study visit after randomization. Therefore the Ns for other side effects are different than those for the serious adverse events and the study sample (by 3 participants total).
Blood and lymphatic system disorders
Neonatal Hematochromatosis
0.31%
1/327 • Adverse event data was collected during the study period of April 2007 through June 2010, from the time of the participants randomization through hospital discharge of the mother and baby (up to 60 days).
Other adverse events that are related to side effects are available for patients who had at least 1 study visit. 1 randomized participant in the treatment group and 2 randomized participants in the placebo group did not attend a study visit after randomization. Therefore the Ns for other side effects are different than those for the serious adverse events and the study sample (by 3 participants total).
0.00%
0/330 • Adverse event data was collected during the study period of April 2007 through June 2010, from the time of the participants randomization through hospital discharge of the mother and baby (up to 60 days).
Other adverse events that are related to side effects are available for patients who had at least 1 study visit. 1 randomized participant in the treatment group and 2 randomized participants in the placebo group did not attend a study visit after randomization. Therefore the Ns for other side effects are different than those for the serious adverse events and the study sample (by 3 participants total).

Other adverse events

Other adverse events
Measure
17 Alpha-hydroxyprogesterone Caproate
n=326 participants at risk;n=327 participants at risk
250 mg of 17 alpha-hydroxyprogesterone caproate given by weekly injection until 37 weeks gestation or delivery 17 alpha-hydroxyprogesterone caproate: Coded study medication is sterile solution containing 250 mg/mL of 17 alpha-hydroxyprogesterone caproate in castor oil with benzyl benzoate and benzyl alcohol as a preservative; placebo is same without the active ingredient. Study drug is administered as weekly 1 ml intramuscular injections until 36 week 6 days of gestation or delivery, whichever occurs first.
Placebo
n=328 participants at risk;n=330 participants at risk
Placebo oil given by weekly injection until 37 weeks gestation or delivery. Placebo Oil: Placebo oil is a 250 mg/mL solution of castor oil with benzyl benzoate and benzyl alcohol as a preservative
General disorders
Headache
2.1%
7/326 • Adverse event data was collected during the study period of April 2007 through June 2010, from the time of the participants randomization through hospital discharge of the mother and baby (up to 60 days).
Other adverse events that are related to side effects are available for patients who had at least 1 study visit. 1 randomized participant in the treatment group and 2 randomized participants in the placebo group did not attend a study visit after randomization. Therefore the Ns for other side effects are different than those for the serious adverse events and the study sample (by 3 participants total).
2.4%
8/328 • Adverse event data was collected during the study period of April 2007 through June 2010, from the time of the participants randomization through hospital discharge of the mother and baby (up to 60 days).
Other adverse events that are related to side effects are available for patients who had at least 1 study visit. 1 randomized participant in the treatment group and 2 randomized participants in the placebo group did not attend a study visit after randomization. Therefore the Ns for other side effects are different than those for the serious adverse events and the study sample (by 3 participants total).
General disorders
Fatigue
1.5%
5/326 • Adverse event data was collected during the study period of April 2007 through June 2010, from the time of the participants randomization through hospital discharge of the mother and baby (up to 60 days).
Other adverse events that are related to side effects are available for patients who had at least 1 study visit. 1 randomized participant in the treatment group and 2 randomized participants in the placebo group did not attend a study visit after randomization. Therefore the Ns for other side effects are different than those for the serious adverse events and the study sample (by 3 participants total).
0.61%
2/328 • Adverse event data was collected during the study period of April 2007 through June 2010, from the time of the participants randomization through hospital discharge of the mother and baby (up to 60 days).
Other adverse events that are related to side effects are available for patients who had at least 1 study visit. 1 randomized participant in the treatment group and 2 randomized participants in the placebo group did not attend a study visit after randomization. Therefore the Ns for other side effects are different than those for the serious adverse events and the study sample (by 3 participants total).
Gastrointestinal disorders
Nausea
2.1%
7/326 • Adverse event data was collected during the study period of April 2007 through June 2010, from the time of the participants randomization through hospital discharge of the mother and baby (up to 60 days).
Other adverse events that are related to side effects are available for patients who had at least 1 study visit. 1 randomized participant in the treatment group and 2 randomized participants in the placebo group did not attend a study visit after randomization. Therefore the Ns for other side effects are different than those for the serious adverse events and the study sample (by 3 participants total).
3.0%
10/328 • Adverse event data was collected during the study period of April 2007 through June 2010, from the time of the participants randomization through hospital discharge of the mother and baby (up to 60 days).
Other adverse events that are related to side effects are available for patients who had at least 1 study visit. 1 randomized participant in the treatment group and 2 randomized participants in the placebo group did not attend a study visit after randomization. Therefore the Ns for other side effects are different than those for the serious adverse events and the study sample (by 3 participants total).
Gastrointestinal disorders
Vomiting
1.8%
6/326 • Adverse event data was collected during the study period of April 2007 through June 2010, from the time of the participants randomization through hospital discharge of the mother and baby (up to 60 days).
Other adverse events that are related to side effects are available for patients who had at least 1 study visit. 1 randomized participant in the treatment group and 2 randomized participants in the placebo group did not attend a study visit after randomization. Therefore the Ns for other side effects are different than those for the serious adverse events and the study sample (by 3 participants total).
0.91%
3/328 • Adverse event data was collected during the study period of April 2007 through June 2010, from the time of the participants randomization through hospital discharge of the mother and baby (up to 60 days).
Other adverse events that are related to side effects are available for patients who had at least 1 study visit. 1 randomized participant in the treatment group and 2 randomized participants in the placebo group did not attend a study visit after randomization. Therefore the Ns for other side effects are different than those for the serious adverse events and the study sample (by 3 participants total).
Gastrointestinal disorders
Diarrhea
0.61%
2/326 • Adverse event data was collected during the study period of April 2007 through June 2010, from the time of the participants randomization through hospital discharge of the mother and baby (up to 60 days).
Other adverse events that are related to side effects are available for patients who had at least 1 study visit. 1 randomized participant in the treatment group and 2 randomized participants in the placebo group did not attend a study visit after randomization. Therefore the Ns for other side effects are different than those for the serious adverse events and the study sample (by 3 participants total).
1.8%
6/328 • Adverse event data was collected during the study period of April 2007 through June 2010, from the time of the participants randomization through hospital discharge of the mother and baby (up to 60 days).
Other adverse events that are related to side effects are available for patients who had at least 1 study visit. 1 randomized participant in the treatment group and 2 randomized participants in the placebo group did not attend a study visit after randomization. Therefore the Ns for other side effects are different than those for the serious adverse events and the study sample (by 3 participants total).
Skin and subcutaneous tissue disorders
Reaction at injection site
66.6%
217/326 • Adverse event data was collected during the study period of April 2007 through June 2010, from the time of the participants randomization through hospital discharge of the mother and baby (up to 60 days).
Other adverse events that are related to side effects are available for patients who had at least 1 study visit. 1 randomized participant in the treatment group and 2 randomized participants in the placebo group did not attend a study visit after randomization. Therefore the Ns for other side effects are different than those for the serious adverse events and the study sample (by 3 participants total).
64.0%
210/328 • Adverse event data was collected during the study period of April 2007 through June 2010, from the time of the participants randomization through hospital discharge of the mother and baby (up to 60 days).
Other adverse events that are related to side effects are available for patients who had at least 1 study visit. 1 randomized participant in the treatment group and 2 randomized participants in the placebo group did not attend a study visit after randomization. Therefore the Ns for other side effects are different than those for the serious adverse events and the study sample (by 3 participants total).
Skin and subcutaneous tissue disorders
Sore/burn at injection site
44.5%
145/326 • Adverse event data was collected during the study period of April 2007 through June 2010, from the time of the participants randomization through hospital discharge of the mother and baby (up to 60 days).
Other adverse events that are related to side effects are available for patients who had at least 1 study visit. 1 randomized participant in the treatment group and 2 randomized participants in the placebo group did not attend a study visit after randomization. Therefore the Ns for other side effects are different than those for the serious adverse events and the study sample (by 3 participants total).
46.6%
153/328 • Adverse event data was collected during the study period of April 2007 through June 2010, from the time of the participants randomization through hospital discharge of the mother and baby (up to 60 days).
Other adverse events that are related to side effects are available for patients who had at least 1 study visit. 1 randomized participant in the treatment group and 2 randomized participants in the placebo group did not attend a study visit after randomization. Therefore the Ns for other side effects are different than those for the serious adverse events and the study sample (by 3 participants total).
Skin and subcutaneous tissue disorders
Itching at injection site
37.1%
121/326 • Adverse event data was collected during the study period of April 2007 through June 2010, from the time of the participants randomization through hospital discharge of the mother and baby (up to 60 days).
Other adverse events that are related to side effects are available for patients who had at least 1 study visit. 1 randomized participant in the treatment group and 2 randomized participants in the placebo group did not attend a study visit after randomization. Therefore the Ns for other side effects are different than those for the serious adverse events and the study sample (by 3 participants total).
33.2%
109/328 • Adverse event data was collected during the study period of April 2007 through June 2010, from the time of the participants randomization through hospital discharge of the mother and baby (up to 60 days).
Other adverse events that are related to side effects are available for patients who had at least 1 study visit. 1 randomized participant in the treatment group and 2 randomized participants in the placebo group did not attend a study visit after randomization. Therefore the Ns for other side effects are different than those for the serious adverse events and the study sample (by 3 participants total).
Skin and subcutaneous tissue disorders
Swelling/lump at injection site
32.8%
107/326 • Adverse event data was collected during the study period of April 2007 through June 2010, from the time of the participants randomization through hospital discharge of the mother and baby (up to 60 days).
Other adverse events that are related to side effects are available for patients who had at least 1 study visit. 1 randomized participant in the treatment group and 2 randomized participants in the placebo group did not attend a study visit after randomization. Therefore the Ns for other side effects are different than those for the serious adverse events and the study sample (by 3 participants total).
28.4%
93/328 • Adverse event data was collected during the study period of April 2007 through June 2010, from the time of the participants randomization through hospital discharge of the mother and baby (up to 60 days).
Other adverse events that are related to side effects are available for patients who had at least 1 study visit. 1 randomized participant in the treatment group and 2 randomized participants in the placebo group did not attend a study visit after randomization. Therefore the Ns for other side effects are different than those for the serious adverse events and the study sample (by 3 participants total).
Skin and subcutaneous tissue disorders
Bruising at injection site
8.0%
26/326 • Adverse event data was collected during the study period of April 2007 through June 2010, from the time of the participants randomization through hospital discharge of the mother and baby (up to 60 days).
Other adverse events that are related to side effects are available for patients who had at least 1 study visit. 1 randomized participant in the treatment group and 2 randomized participants in the placebo group did not attend a study visit after randomization. Therefore the Ns for other side effects are different than those for the serious adverse events and the study sample (by 3 participants total).
7.0%
23/328 • Adverse event data was collected during the study period of April 2007 through June 2010, from the time of the participants randomization through hospital discharge of the mother and baby (up to 60 days).
Other adverse events that are related to side effects are available for patients who had at least 1 study visit. 1 randomized participant in the treatment group and 2 randomized participants in the placebo group did not attend a study visit after randomization. Therefore the Ns for other side effects are different than those for the serious adverse events and the study sample (by 3 participants total).
Skin and subcutaneous tissue disorders
Redness at injection site
2.5%
8/326 • Adverse event data was collected during the study period of April 2007 through June 2010, from the time of the participants randomization through hospital discharge of the mother and baby (up to 60 days).
Other adverse events that are related to side effects are available for patients who had at least 1 study visit. 1 randomized participant in the treatment group and 2 randomized participants in the placebo group did not attend a study visit after randomization. Therefore the Ns for other side effects are different than those for the serious adverse events and the study sample (by 3 participants total).
3.4%
11/328 • Adverse event data was collected during the study period of April 2007 through June 2010, from the time of the participants randomization through hospital discharge of the mother and baby (up to 60 days).
Other adverse events that are related to side effects are available for patients who had at least 1 study visit. 1 randomized participant in the treatment group and 2 randomized participants in the placebo group did not attend a study visit after randomization. Therefore the Ns for other side effects are different than those for the serious adverse events and the study sample (by 3 participants total).
Skin and subcutaneous tissue disorders
Urticaria
3.1%
10/326 • Adverse event data was collected during the study period of April 2007 through June 2010, from the time of the participants randomization through hospital discharge of the mother and baby (up to 60 days).
Other adverse events that are related to side effects are available for patients who had at least 1 study visit. 1 randomized participant in the treatment group and 2 randomized participants in the placebo group did not attend a study visit after randomization. Therefore the Ns for other side effects are different than those for the serious adverse events and the study sample (by 3 participants total).
0.61%
2/328 • Adverse event data was collected during the study period of April 2007 through June 2010, from the time of the participants randomization through hospital discharge of the mother and baby (up to 60 days).
Other adverse events that are related to side effects are available for patients who had at least 1 study visit. 1 randomized participant in the treatment group and 2 randomized participants in the placebo group did not attend a study visit after randomization. Therefore the Ns for other side effects are different than those for the serious adverse events and the study sample (by 3 participants total).

Additional Information

William Grobman, MD

Northwestern University Medical School

Phone: 312-472-4661

Results disclosure agreements

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