Intermittent Preventive Treatment In Pregnancy (IPTp)
Conditions
Keywords
P. falciparum malaria, IPTp
Brief summary
The primary objective is to establish superiority of AZCQ over SP in protective efficacy for IPTp as measured by the proportion of subjects with sub-optimal pregnancy outcome.
Detailed description
After interim analysis of efficacy data by an External Data Monitoring Committee, this study was terminated. Investigators were notified on 22 Aug 2013. There were no safety concerns that led to this termination.
Interventions
combination tablet of 250mg azithromycin/155 chloroquine, Once daily PO for three days per treatment. There are total 3 treatments at 4-8 weeks intervals. The first treatment course will be administered during the second trimester (14-26 weeks of gestation as confirmed by ultrasound). The last treatment course should be given to subjects prior to or during 36 weeks of gestation.
Fansidar tablet (500 mg sulfadoxine /25 mg pyrimethamine), once daily, PO, single dose per treatment. There are total 3 treatments at 4-8 weeks intervals. The first treatment course will be administered during the second trimester (14-26 weeks of gestation as confirmed by ultrasound). The last treatment course should be given to subjects prior to or during 36 weeks of gestation.
Sponsors
Study design
Eligibility
Inclusion criteria
* Pregnant women (all gravidae) with ≥14 and ≤26 weeks of gestational age (by ultrasound). * Evidence of a personally signed and dated informed consent/assent document. Assent will be obtained from subjects \<18 years of age. * Subjects who are willing to and able to comply with scheduled visits, treatment plan, laboratory tests, and other study procedures. * Subjects who are available for follow up at delivery and on 28 days post delivery.
Exclusion criteria
* Age \<16 years old or \>35 years old. * Multiple gestations as per the ultrasound at screening. * Clinical symptoms of malaria. * Hemoglobin \< 8 g/dL (at enrollment). * Any condition requiring hospitalization at enrollment. * History of convulsions, hypertension, diabetes or any other chronic illness that may adversely affect fetal growth and viability. * Inability to tolerate oral treatment in tablet form. * Known allergy to the study drugs (azithromycin, chloroquine, and sulfadoxine-pyrimethamine) or to any macrolides or sulphonamides. * Requirement to use medication during the study that might interfere with the evaluation of the study drug eg, trimethoprim-sulfamethoxazole use in subjects positive for HIV infection. * Other severe acute or chronic medical or psychiatric condition or laboratory abnormality that may increase the risk associated with study participation. * Evidence of current obstetric complications that may adversely impact the pregnancy and/or fetal outcomes, including presence of congenital anomalies, placenta previa or abruption. * Known severe Sickle Cell (SS) disease or Sickle Hemoglobin C (SC) anemia. * Known family history of prolonged QT Syndrome, serious ventricular arrhythmia, or sudden cardiac death.
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Percentage Participants With Sub-optimal Pregnancy Outcome in Intent-to-Treat (IIT) Population | Approximately 40 weeks of gestational age | Adverse pregnancy outcomes were defined as live-borne neonate (singleton) with low birth weight (LBW) (\<2,500 g), premature births (\<37 weeks as confirmed by the Ballard score), abortion (≤28 weeks), still birth (\>28 weeks), lost to follow-up prior to termination of pregnancy or delivery, or missing birth weight of the neonates. |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Percentage of Neonates With LBW (<2500 g) in ITT Population | Approximately 40 weeks of gestational age | LBW was defined as live birth weight \<2500 g (up to and including 2499 g). |
| Percentage of Neonates With LBW (<2500 g) in Efficacy Analyzable PP Population | Approximately 40 weeks of gestational age | LBW was defined as live birth weight \<2500 g (up to and including 2499 g). |
| Percentage of Participants With Severe Maternal Anemia (Hemoglobin [Hb] <8 g/dL) at 36-38 Weeks of Gestation | At 36-38 weeks of gestation. | Severe maternal anemia was defined as Hb \<8 g/dL. |
| Percentage of Participants With Maternal Anemia (Hb <11 g/dL) at 36-38 Weeks of Gestation | At 36-38 weeks of gestation. | Anemia was defined as Hb \<11 g/dL. |
| Percentage of Participants With Placental Parasitemia at Delivery | Approximately 40 weeks of gestational age | Participants with placental parasitemia at delivery were diagnosed using Placental blood smear at birth from participants who deliver at hospital. |
| Percentage of Participants With Placental Malaria at Delivery Based on Histology | Approximately 40 weeks of gestational age | Participants positive for placental malaria at delivery were evaluated based on placental histology. |
| Sexually Transmitted Infection (STI) Episodes Per Participant | Approximately 40 weeks of gestational age . | Number of episodes of sexually transmitted infection episodes per participant were noted. The STI's including Treponema pallidum, Neisseria gonorrhoeae, Chlamydia trachomatis, from first dose to delivery (diagnosis was based on clinical presentation and lab results). |
| Percentage of Participants With Sub-optimal Pregnancy Outcome Including Neonatal Death and Congenital Malformation | Approximately 40 weeks of gestational age. | Sub-optimal pregnancy outcome including neonatal deaths and congenital malformations, defined as any of the following: live-borne neonate (singleton) with low birth-weight (or LBW for short, defined as live birth weight \<2,500g), premature birth (\<37 weeks), abortion (≤28 weeks), still birth (\>28 weeks), neonatal death, congenital malformation, lost to follow-up prior to termination of pregnancy or delivery, or missing birth weight of the neonates. |
| Change From Baseline to 36-38 Weeks of Gestation in Hb Concentration. | Baseline, at 36-38 weeks of gestation. | Change from Baseline to 36-38 weeks of gestation in Hb concentration was noted. |
| Percentage of Neonates With Congenital Abnormalities at Birth | Approximately 40 weeks of gestational age. | Neonates with congenital abnormalities at birth were noted. |
| Percentage of Perinatal or Neonatal Deaths | Day 28 after delivery. | Percentage of perinatal or neonatal deaths were noted. |
| Birth Weight of Live Borne Neonate | Approximately 40 weeks of gestational age. | Birth weight of live borne neonates were calculated in grams. |
| Number of Episodes of Symptomatic Malaria Per Participant From First Intermittent Preventive Treatment of Falciparum Dose to Delivery | Approximately 40 weeks of gestational age | This outcome measure determined if an episode of malaria started within the time period of first dose to delivery. Clinical episode of malaria was determined if the participant presented with clinical symptoms of malaria (fever \>37.5°C, oral) and diagnosed (either by rapid diagnostic tests or microscopy) with malaria. |
| Percentage of Participants Requiring Additional Treatment for Symptomatic Malaria From First Dose to Delivery | Approximately 40 weeks of gestational age | This outcome measure evaluated the participants requiring additional treatments for malaria during the study period following the first dose (diagnosed based on clinical presentation and/or lab test results). |
| Percentage of Participants With Sub-optimal Pregnancy Outcome in Efficacy Analyzable Per Protocol (PP) Population | Approximately 40 weeks of gestational age | Adverse pregnancy outcomes were defined as live-borne neonate (singleton) with LBW (\<2,500g), premature births (\<37 weeks as confirmed by the Ballard score), abortion (≤28 weeks), still birth (\>28 weeks), lost to follow-up prior to termination of pregnancy or delivery, or missing birth weight of the neonates. |
| Percentage of Participants With Peripheral Parasitemia at Delivery | Approximately 40 weeks of gestational age | This outcome measure evaluated the percentage of participants positive for peripheral parasitemia at delivery. A participant was positive for parasitemia if the number of asexual parasites per μL was \>0. |
| Percentage of Participants With Cord Blood Parasitemia at Delivery | Approximately 40 weeks of gestational age | This outcome measure evaluated the percentage of participants positive for cord blood parasitemia at delivery. A participant was positive for parasitemia if the number of asexual parasites per μL was \>0. |
| Percentage of Participants With Sexually Transmitted Infections From First Dose to 36-38 Weeks of Gestation | Upto 36-38 weeks of gestation | Sexual transmitted disease included Treponema pallidum, Neisseria gonorrhoeae, and Chlamydia trachomatis infections. This was diagnosed based on clinical presentation prior to Week 36-38 and/or lab test results between Week 36-38. |
| Percentage of Participants With Chlamydia Trachomatis Infection at 36-38 Weeks of Gestation | At 36-38 weeks of gestation | Participants positive for Chlamydia trachomatis infection was diagnosed based on laboratory result at 36-38 weeks of gestation. A vaginal swab was collected and PCR assay was used for analysis. |
| Percentage of Participants With Neisseria Gonorrhoeae Infection at 36-38 Weeks of Gestation | At 36-38 weeks of gestation | Participants positive for Neisseria gonorrhoeae infection was diagnosed based on laboratory result at 36-38 weeks of gestation. A vaginal swab was collected and PCR assay was used for analysis. |
| Percentage of Participants With Treponema Pallidum Infection at 36-38 Weeks of Gestation | At 36-38 weeks of gestation | Participants positive for Treponema pallidum infection was diagnosed based on laboratory result at 36-38 weeks of gestation. Treponema Pallidum particle Agglutination Assay was used. |
| Percentage of Participants With Trichomonas Vaginalis Infection at 36-38 Weeks of Gestation | At 36-38 weeks of gestation | Participants positive for Trichomonas vaginalis infection was diagnosed based on laboratory result at 36-38 weeks of gestation. A vaginal swab was collected for the laboratory test. |
| Percentage of Participants With Bacterial Vaginosis Infection at 36-38 Weeks of Gestation. | At 36-38 weeks of gestation | Bacterial vaginosis was diagnosed based on laboratory result at 36-38 weeks of gestation. A vaginal swab was collected for the Gram staining. |
| Percentage of Neonates With Ophthalmia Neonatorum at Birth Period | Approximately 40 weeks of gestational age | Ophthalmia neonatorum was diagnosed at birth. The laboratory diagnosis was performed among neonates with purulent discharge. |
| Percentage of Participants With Bacterial Infections Including Pneumonia and Other Lower Respiratory Tract Infections From First Dose to Delivery | Up to approximately 40 weeks of gestational age | Participants positive for bacterial infections including other lower respiratory tract infections were measured anytime from first dose administration to delivery. |
| Percentage of Participants With Pre-eclampsia From Week 20 to Delivery | From Week 20 to approximately 40 weeks of gestational age | Pre-eclampsia was diagnosed as systolic blood pressure of at least 140 mmHg and/or diastolic blood pressure of at least 90 mmHg on two separate readings taken at least 4 hours apart and proteinuria at least 300 mg protein in a 24 hour urine collection. |
| Nasopharyngeal Swabs Positive for Macrolide Resistant Streptococcus Pneumoniae | Visits 6 and 7 | This outcome measure evaluated the Streptococcus pneumoniae sensitivity against macrolide antibiotics. |
| Nasopharyngeal Swabs Positive for Penicillin Resistant Streptococcus Pneumoniae | Visits 6 and 7 | This outcome measure evaluated the Streptococcus pneumoniae sensitivity against penicillin antibiotics. |
| Percentage of Participants With Peripheral Parasitemia at 36-38 Weeks of Gestation | At 36-38 weeks of gestation | This outcome measure evaluated the percentage of participants positive for peripheral parasitemia at 36-38 weeks of gestation. A participant was positive for parasitemia if the number of asexual parasites per μL was \>0. |
Countries
Benin, Kenya, Malawi, Tanzania, Uganda
Participant flow
Recruitment details
This Phase 3, open label, randomized, parallel group study screened a total of 3259 participants in 6 sites. A total of 2891 were treated either with azithromycin+chloroquine or sulfadoxine+pyrimethamine.
Pre-assignment details
Pregnant women (all gravidae) with ≥14 and ≤26 weeks of gestational age were to be enrolled in this study. Approximately half of the participants were to be primigravidae and secundigravidae pregnant women since they had a higher risk for suboptimal pregnancy outcomes due to malaria.
Participants by arm
| Arm | Count |
|---|---|
| Azithromycin + Chloroquine The participants received 1000 mg Azithromycin (AZ) and 620 mg of Chloroquine (CQ) base (4 combination tablets of AZCQ with individual strength of 250 mg/155 mg), by mouth once daily for 3 days (Days 0, 1, 2) per treatment. There were a total of 3 treatments at 4-8 week intervals. | 1,446 |
| Sulfadoxine + Pyrimethamine The participants received sulfadoxine-pyrimethamine (SP) (Fansidar) treatment course: 1500 mg sulfadoxine and 75 mg pyrimethamine (3 fixed tablets of SP strength at 500 mg/25 mg), single oral dose on Day 0 of each treatment. There were a total of 3 treatments at 4-8 week intervals. | 1,445 |
| Total | 2,891 |
Withdrawals & dropouts
| Period | Reason | FG000 | FG001 |
|---|---|---|---|
| Overall Study | Adverse Event | 3 | 1 |
| Overall Study | Death | 3 | 1 |
| Overall Study | Lost to Follow-up | 68 | 51 |
| Overall Study | Other | 16 | 11 |
| Overall Study | Protocol Violation | 1 | 0 |
| Overall Study | Study terminated by Sponsor | 326 | 342 |
| Overall Study | Withdrawal by Subject | 60 | 15 |
Baseline characteristics
| Characteristic | Azithromycin + Chloroquine | Sulfadoxine + Pyrimethamine | Total |
|---|---|---|---|
| Age, Continuous | 23.3 Years STANDARD_DEVIATION 4.5 | 23.3 Years STANDARD_DEVIATION 4.6 | 23.3 Years STANDARD_DEVIATION 4.6 |
| Sex: Female, Male Female | 1446 Participants | 1445 Participants | 2891 Participants |
| Sex: Female, Male Male | 0 Participants | 0 Participants | 0 Participants |
Adverse events
| Event type | EG000 affected / at risk | EG001 affected / at risk | EG002 affected / at risk | EG003 affected / at risk |
|---|---|---|---|---|
| deaths Total, all-cause mortality | — / — | — / — | — / — | — / — |
| other Total, other adverse events | 1,177 / 1,446 | 888 / 1,445 | 301 / 1,149 | 326 / 1,196 |
| serious Total, serious adverse events | 65 / 1,446 | 42 / 1,445 | 101 / 1,149 | 104 / 1,196 |
Outcome results
Percentage Participants With Sub-optimal Pregnancy Outcome in Intent-to-Treat (IIT) Population
Adverse pregnancy outcomes were defined as live-borne neonate (singleton) with low birth weight (LBW) (\<2,500 g), premature births (\<37 weeks as confirmed by the Ballard score), abortion (≤28 weeks), still birth (\>28 weeks), lost to follow-up prior to termination of pregnancy or delivery, or missing birth weight of the neonates.
Time frame: Approximately 40 weeks of gestational age
Population: ITT set was used which consisted of participants who were randomized, received at least one dose of study medication (Day 0 at Visit 1 was considered the first dose of study medication), and who had a single fetus.
| Arm | Measure | Value (NUMBER) |
|---|---|---|
| Azithromycin + Chloroquine | Percentage Participants With Sub-optimal Pregnancy Outcome in Intent-to-Treat (IIT) Population | 26.16 Percentage of participants |
| Sulfadoxine + Pyrimethamine | Percentage Participants With Sub-optimal Pregnancy Outcome in Intent-to-Treat (IIT) Population | 23.67 Percentage of participants |
Birth Weight of Live Borne Neonate
Birth weight of live borne neonates were calculated in grams.
Time frame: Approximately 40 weeks of gestational age.
Population: ITT set was used which consisted of participants who were randomized, received at least one dose of study medication (Day 0 at Visit 1 was considered the first dose of study medication), and who had a single fetus. N=Number of live births with available data.
| Arm | Measure | Value (LEAST_SQUARES_MEAN) |
|---|---|---|
| Azithromycin + Chloroquine | Birth Weight of Live Borne Neonate | 3148.3 grams |
| Sulfadoxine + Pyrimethamine | Birth Weight of Live Borne Neonate | 3146.2 grams |
Change From Baseline to 36-38 Weeks of Gestation in Hb Concentration.
Change from Baseline to 36-38 weeks of gestation in Hb concentration was noted.
Time frame: Baseline, at 36-38 weeks of gestation.
Population: ITT set was used which consisted of participants who were randomized, received at least one dose of study medication (Day 0 at Visit 1 was considered the first dose of study medication), and who had a single fetus. N=Number of participants with available data.
| Arm | Measure | Value (LEAST_SQUARES_MEAN) |
|---|---|---|
| Azithromycin + Chloroquine | Change From Baseline to 36-38 Weeks of Gestation in Hb Concentration. | 0.13 g/dL |
| Sulfadoxine + Pyrimethamine | Change From Baseline to 36-38 Weeks of Gestation in Hb Concentration. | 0.27 g/dL |
Nasopharyngeal Swabs Positive for Macrolide Resistant Streptococcus Pneumoniae
This outcome measure evaluated the Streptococcus pneumoniae sensitivity against macrolide antibiotics.
Time frame: Visits 6 and 7
Population: ITT set was used which consisted of participants who were randomized, received at least one dose of study medication (Day 0 at Visit 1 is considered the first dose of study medication), and who had a single fetus. N=Number of participant with nasopharyngeal swabs isolating Streptococcus pneumoniae at the specified visit.
| Arm | Measure | Group | Value (NUMBER) |
|---|---|---|---|
| Azithromycin + Chloroquine | Nasopharyngeal Swabs Positive for Macrolide Resistant Streptococcus Pneumoniae | Visit 6 (N = 8 and 17 respectively) | 0 Percentage of participants |
| Azithromycin + Chloroquine | Nasopharyngeal Swabs Positive for Macrolide Resistant Streptococcus Pneumoniae | Visit 7 (N = 16 and 11 respectively) | 0 Percentage of participants |
| Sulfadoxine + Pyrimethamine | Nasopharyngeal Swabs Positive for Macrolide Resistant Streptococcus Pneumoniae | Visit 6 (N = 8 and 17 respectively) | 11.76 Percentage of participants |
| Sulfadoxine + Pyrimethamine | Nasopharyngeal Swabs Positive for Macrolide Resistant Streptococcus Pneumoniae | Visit 7 (N = 16 and 11 respectively) | 0 Percentage of participants |
Nasopharyngeal Swabs Positive for Penicillin Resistant Streptococcus Pneumoniae
This outcome measure evaluated the Streptococcus pneumoniae sensitivity against penicillin antibiotics.
Time frame: Visits 6 and 7
Population: ITT set was used which consisted of participants who were randomized, received at least one dose of study medication (Day 0 at Visit 1 is considered the first dose of study medication), and who had a single fetus. N=Number of participant with nasopharyngeal swabs isolating Streptococcus pneumoniae at the specified visit.
| Arm | Measure | Group | Value (NUMBER) |
|---|---|---|---|
| Azithromycin + Chloroquine | Nasopharyngeal Swabs Positive for Penicillin Resistant Streptococcus Pneumoniae | Visit 6 (N = 8 and 17 respectively) | 0 Percentage of participants |
| Azithromycin + Chloroquine | Nasopharyngeal Swabs Positive for Penicillin Resistant Streptococcus Pneumoniae | Visit 7 (N = 16 and 11 respectively) | 0 Percentage of participants |
| Sulfadoxine + Pyrimethamine | Nasopharyngeal Swabs Positive for Penicillin Resistant Streptococcus Pneumoniae | Visit 6 (N = 8 and 17 respectively) | 0 Percentage of participants |
| Sulfadoxine + Pyrimethamine | Nasopharyngeal Swabs Positive for Penicillin Resistant Streptococcus Pneumoniae | Visit 7 (N = 16 and 11 respectively) | 0 Percentage of participants |
Number of Episodes of Symptomatic Malaria Per Participant From First Intermittent Preventive Treatment of Falciparum Dose to Delivery
This outcome measure determined if an episode of malaria started within the time period of first dose to delivery. Clinical episode of malaria was determined if the participant presented with clinical symptoms of malaria (fever \>37.5°C, oral) and diagnosed (either by rapid diagnostic tests or microscopy) with malaria.
Time frame: Approximately 40 weeks of gestational age
Population: ITT set was used which consisted of participants who were randomized, received at least one dose of study medication (Day 0 at Visit 1 is considered the first dose of study medication), and who had a single fetus.
| Arm | Measure | Value (LEAST_SQUARES_MEAN) |
|---|---|---|
| Azithromycin + Chloroquine | Number of Episodes of Symptomatic Malaria Per Participant From First Intermittent Preventive Treatment of Falciparum Dose to Delivery | 0.06 Number of episodes |
| Sulfadoxine + Pyrimethamine | Number of Episodes of Symptomatic Malaria Per Participant From First Intermittent Preventive Treatment of Falciparum Dose to Delivery | 0.13 Number of episodes |
Percentage of Neonates With Congenital Abnormalities at Birth
Neonates with congenital abnormalities at birth were noted.
Time frame: Approximately 40 weeks of gestational age.
Population: ITT set was used which consisted of participants who were randomized, received at least one dose of study medication (Day 0 at Visit 1 was considered the first dose of study medication), and who had a single fetus. N=Number of total live births.
| Arm | Measure | Value (NUMBER) |
|---|---|---|
| Azithromycin + Chloroquine | Percentage of Neonates With Congenital Abnormalities at Birth | 2.19 Percentage of neonates |
| Sulfadoxine + Pyrimethamine | Percentage of Neonates With Congenital Abnormalities at Birth | 2.44 Percentage of neonates |
Percentage of Neonates With LBW (<2500 g) in Efficacy Analyzable PP Population
LBW was defined as live birth weight \<2500 g (up to and including 2499 g).
Time frame: Approximately 40 weeks of gestational age
Population: Subset of ITT participants: outcome or withdrawal occurred on or before 8/27/2013 (date of study termination), compliant with study medication, birth weight measured on or before 7 days after birth if not already a failure, and did not switch to standard of care. N=Total Live Births.
| Arm | Measure | Value (NUMBER) |
|---|---|---|
| Azithromycin + Chloroquine | Percentage of Neonates With LBW (<2500 g) in Efficacy Analyzable PP Population | 4.72 Percentage of neonates |
| Sulfadoxine + Pyrimethamine | Percentage of Neonates With LBW (<2500 g) in Efficacy Analyzable PP Population | 5.21 Percentage of neonates |
Percentage of Neonates With LBW (<2500 g) in ITT Population
LBW was defined as live birth weight \<2500 g (up to and including 2499 g).
Time frame: Approximately 40 weeks of gestational age
Population: ITT set was used which consisted of participants who were randomized, received at least one dose of study medication (Day 0 at Visit 1 was considered the first dose of study medication), and who had a single fetus. N=Total live births.
| Arm | Measure | Value (NUMBER) |
|---|---|---|
| Azithromycin + Chloroquine | Percentage of Neonates With LBW (<2500 g) in ITT Population | 5.01 Percentage of neonates |
| Sulfadoxine + Pyrimethamine | Percentage of Neonates With LBW (<2500 g) in ITT Population | 5.72 Percentage of neonates |
Percentage of Neonates With Ophthalmia Neonatorum at Birth Period
Ophthalmia neonatorum was diagnosed at birth. The laboratory diagnosis was performed among neonates with purulent discharge.
Time frame: Approximately 40 weeks of gestational age
Population: ITT set was used which consisted of participants who were randomized, received at least one dose of study medication (Day 0 at Visit 1 is considered the first dose of study medication), and who had a single fetus. N=Total live births.
| Arm | Measure | Value (NUMBER) |
|---|---|---|
| Azithromycin + Chloroquine | Percentage of Neonates With Ophthalmia Neonatorum at Birth Period | 0.35 Percentage of neonates |
| Sulfadoxine + Pyrimethamine | Percentage of Neonates With Ophthalmia Neonatorum at Birth Period | 0.17 Percentage of neonates |
Percentage of Participants Requiring Additional Treatment for Symptomatic Malaria From First Dose to Delivery
This outcome measure evaluated the participants requiring additional treatments for malaria during the study period following the first dose (diagnosed based on clinical presentation and/or lab test results).
Time frame: Approximately 40 weeks of gestational age
Population: ITT set was used which consisted of participants who were randomized, received at least one dose of study medication (Day 0 at Visit 1 is considered the first dose of study medication), and who had a single fetus.
| Arm | Measure | Value (NUMBER) |
|---|---|---|
| Azithromycin + Chloroquine | Percentage of Participants Requiring Additional Treatment for Symptomatic Malaria From First Dose to Delivery | 5.74 Percentage of participants |
| Sulfadoxine + Pyrimethamine | Percentage of Participants Requiring Additional Treatment for Symptomatic Malaria From First Dose to Delivery | 10.52 Percentage of participants |
Percentage of Participants With Bacterial Infections Including Pneumonia and Other Lower Respiratory Tract Infections From First Dose to Delivery
Participants positive for bacterial infections including other lower respiratory tract infections were measured anytime from first dose administration to delivery.
Time frame: Up to approximately 40 weeks of gestational age
Population: ITT set was used which consisted of participants who were randomized, received at least one dose of study medication (Day 0 at Visit 1 is considered the first dose of study medication), and who had a single fetus. N=Number of participants with available data.
| Arm | Measure | Value (NUMBER) |
|---|---|---|
| Azithromycin + Chloroquine | Percentage of Participants With Bacterial Infections Including Pneumonia and Other Lower Respiratory Tract Infections From First Dose to Delivery | 0.48 Percentage of participants |
| Sulfadoxine + Pyrimethamine | Percentage of Participants With Bacterial Infections Including Pneumonia and Other Lower Respiratory Tract Infections From First Dose to Delivery | 1.25 Percentage of participants |
Percentage of Participants With Bacterial Vaginosis Infection at 36-38 Weeks of Gestation.
Bacterial vaginosis was diagnosed based on laboratory result at 36-38 weeks of gestation. A vaginal swab was collected for the Gram staining.
Time frame: At 36-38 weeks of gestation
Population: ITT set was used which consisted of participants who were randomized, received at least one dose of study medication (Day 0 at Visit 1 is considered the first dose of study medication), and who had a single fetus. N=Number of participants with laboratory test results at 36-38 weeks of gestation.
| Arm | Measure | Value (NUMBER) |
|---|---|---|
| Azithromycin + Chloroquine | Percentage of Participants With Bacterial Vaginosis Infection at 36-38 Weeks of Gestation. | 8.58 Percentage of participants |
| Sulfadoxine + Pyrimethamine | Percentage of Participants With Bacterial Vaginosis Infection at 36-38 Weeks of Gestation. | 11.84 Percentage of participants |
Percentage of Participants With Chlamydia Trachomatis Infection at 36-38 Weeks of Gestation
Participants positive for Chlamydia trachomatis infection was diagnosed based on laboratory result at 36-38 weeks of gestation. A vaginal swab was collected and PCR assay was used for analysis.
Time frame: At 36-38 weeks of gestation
Population: ITT set was used which consisted of participants who were randomized, received at least one dose of study medication (Day 0 at Visit 1 is considered the first dose of study medication), and who had a single fetus. N=Number of participants with lab test results at 36-38 weeks of gestation.
| Arm | Measure | Value (NUMBER) |
|---|---|---|
| Azithromycin + Chloroquine | Percentage of Participants With Chlamydia Trachomatis Infection at 36-38 Weeks of Gestation | 1.47 Percentage of participants |
| Sulfadoxine + Pyrimethamine | Percentage of Participants With Chlamydia Trachomatis Infection at 36-38 Weeks of Gestation | 0.63 Percentage of participants |
Percentage of Participants With Cord Blood Parasitemia at Delivery
This outcome measure evaluated the percentage of participants positive for cord blood parasitemia at delivery. A participant was positive for parasitemia if the number of asexual parasites per μL was \>0.
Time frame: Approximately 40 weeks of gestational age
Population: ITT set was used which consisted of participants who were randomized, received at least one dose of study medication (Day 0 at Visit 1 is considered the first dose of study medication), and who had a single fetus. N = Number of participants with cord blood smear parasite counts at delivery.
| Arm | Measure | Value (NUMBER) |
|---|---|---|
| Azithromycin + Chloroquine | Percentage of Participants With Cord Blood Parasitemia at Delivery | 0.49 Percentage of participants |
| Sulfadoxine + Pyrimethamine | Percentage of Participants With Cord Blood Parasitemia at Delivery | 0.75 Percentage of participants |
Percentage of Participants With Maternal Anemia (Hb <11 g/dL) at 36-38 Weeks of Gestation
Anemia was defined as Hb \<11 g/dL.
Time frame: At 36-38 weeks of gestation.
Population: ITT set was used which consisted of participants who were randomized, received at least one dose of study medication (Day 0 at Visit 1 was considered the first dose of study medication), and who had a single fetus. N=Number of participants with Hb measurement at 36-38 weeks gestation.
| Arm | Measure | Value (NUMBER) |
|---|---|---|
| Azithromycin + Chloroquine | Percentage of Participants With Maternal Anemia (Hb <11 g/dL) at 36-38 Weeks of Gestation | 50.57 Percentage of Participants |
| Sulfadoxine + Pyrimethamine | Percentage of Participants With Maternal Anemia (Hb <11 g/dL) at 36-38 Weeks of Gestation | 49.11 Percentage of Participants |
Percentage of Participants With Neisseria Gonorrhoeae Infection at 36-38 Weeks of Gestation
Participants positive for Neisseria gonorrhoeae infection was diagnosed based on laboratory result at 36-38 weeks of gestation. A vaginal swab was collected and PCR assay was used for analysis.
Time frame: At 36-38 weeks of gestation
Population: ITT set was used which consisted of participants who were randomized, received at least one dose of study medication (Day 0 at Visit 1 is considered the first dose of study medication), and who had a single fetus. N=Number of participants with laboratory test results at 36-38 weeks of gestation.
| Arm | Measure | Value (NUMBER) |
|---|---|---|
| Azithromycin + Chloroquine | Percentage of Participants With Neisseria Gonorrhoeae Infection at 36-38 Weeks of Gestation | 0.40 Percentage of participants |
| Sulfadoxine + Pyrimethamine | Percentage of Participants With Neisseria Gonorrhoeae Infection at 36-38 Weeks of Gestation | 1.64 Percentage of participants |
Percentage of Participants With Peripheral Parasitemia at 36-38 Weeks of Gestation
This outcome measure evaluated the percentage of participants positive for peripheral parasitemia at 36-38 weeks of gestation. A participant was positive for parasitemia if the number of asexual parasites per μL was \>0.
Time frame: At 36-38 weeks of gestation
Population: ITT set was used which consisted of participants who were randomized, received at least one dose of study medication (Day 0 at Visit 1 is considered the first dose of study medication), and who had a single fetus. N = Number of participants with peripheral blood smear parasite counts at 36-38 weeks of gestation.
| Arm | Measure | Value (NUMBER) |
|---|---|---|
| Azithromycin + Chloroquine | Percentage of Participants With Peripheral Parasitemia at 36-38 Weeks of Gestation | 2.71 Percentage of participants |
| Sulfadoxine + Pyrimethamine | Percentage of Participants With Peripheral Parasitemia at 36-38 Weeks of Gestation | 4.38 Percentage of participants |
Percentage of Participants With Peripheral Parasitemia at Delivery
This outcome measure evaluated the percentage of participants positive for peripheral parasitemia at delivery. A participant was positive for parasitemia if the number of asexual parasites per μL was \>0.
Time frame: Approximately 40 weeks of gestational age
Population: ITT set was used which consisted of participants who were randomized, received at least one dose of study medication (Day 0 at Visit 1 is considered the first dose of study medication), and who had a single fetus. N = Number of participants with peripheral blood smear parasite counts at delivery.
| Arm | Measure | Value (NUMBER) |
|---|---|---|
| Azithromycin + Chloroquine | Percentage of Participants With Peripheral Parasitemia at Delivery | 6.05 Percentage of participants |
| Sulfadoxine + Pyrimethamine | Percentage of Participants With Peripheral Parasitemia at Delivery | 7.46 Percentage of participants |
Percentage of Participants With Placental Malaria at Delivery Based on Histology
Participants positive for placental malaria at delivery were evaluated based on placental histology.
Time frame: Approximately 40 weeks of gestational age
Population: ITT set was used which consisted of participants who were randomized, received at least one dose of study medication (Day 0 at Visit 1 was considered the first dose of study medication), and who had a single fetus. N=Number of participants with a histology parasite evaluation at delivery.
| Arm | Measure | Value (NUMBER) |
|---|---|---|
| Azithromycin + Chloroquine | Percentage of Participants With Placental Malaria at Delivery Based on Histology | 4.81 Percentage of participants |
| Sulfadoxine + Pyrimethamine | Percentage of Participants With Placental Malaria at Delivery Based on Histology | 5.73 Percentage of participants |
Percentage of Participants With Placental Parasitemia at Delivery
Participants with placental parasitemia at delivery were diagnosed using Placental blood smear at birth from participants who deliver at hospital.
Time frame: Approximately 40 weeks of gestational age
Population: ITT set was used which consisted of participants who were randomized, received at least one dose of study medication (Day 0 at Visit 1 was considered the first dose of study medication), and who had a single fetus. N=Number of participants with placental parasite counts at delivery.
| Arm | Measure | Value (NUMBER) |
|---|---|---|
| Azithromycin + Chloroquine | Percentage of Participants With Placental Parasitemia at Delivery | 5.30 Percentage of participants |
| Sulfadoxine + Pyrimethamine | Percentage of Participants With Placental Parasitemia at Delivery | 5.67 Percentage of participants |
Percentage of Participants With Pre-eclampsia From Week 20 to Delivery
Pre-eclampsia was diagnosed as systolic blood pressure of at least 140 mmHg and/or diastolic blood pressure of at least 90 mmHg on two separate readings taken at least 4 hours apart and proteinuria at least 300 mg protein in a 24 hour urine collection.
Time frame: From Week 20 to approximately 40 weeks of gestational age
Population: ITT set was used which consisted of participants who were randomized, received at least one dose of study medication (Day 0 at Visit 1 is considered the first dose of study medication), and who had a single fetus. N= Number of participants with available data.
| Arm | Measure | Value (NUMBER) |
|---|---|---|
| Azithromycin + Chloroquine | Percentage of Participants With Pre-eclampsia From Week 20 to Delivery | 0.63 Percentage of participants |
| Sulfadoxine + Pyrimethamine | Percentage of Participants With Pre-eclampsia From Week 20 to Delivery | 1.04 Percentage of participants |
Percentage of Participants With Severe Maternal Anemia (Hemoglobin [Hb] <8 g/dL) at 36-38 Weeks of Gestation
Severe maternal anemia was defined as Hb \<8 g/dL.
Time frame: At 36-38 weeks of gestation.
Population: ITT set was used which consisted of participants who were randomized, received at least one dose of study medication (Day 0 at Visit 1 was considered the first dose of study medication), and who had a single fetus. N=Number of participants with Hb measurement at 36-38 weeks gestation.
| Arm | Measure | Value (NUMBER) |
|---|---|---|
| Azithromycin + Chloroquine | Percentage of Participants With Severe Maternal Anemia (Hemoglobin [Hb] <8 g/dL) at 36-38 Weeks of Gestation | 1.80 Percentage of participants |
| Sulfadoxine + Pyrimethamine | Percentage of Participants With Severe Maternal Anemia (Hemoglobin [Hb] <8 g/dL) at 36-38 Weeks of Gestation | 2.00 Percentage of participants |
Percentage of Participants With Sexually Transmitted Infections From First Dose to 36-38 Weeks of Gestation
Sexual transmitted disease included Treponema pallidum, Neisseria gonorrhoeae, and Chlamydia trachomatis infections. This was diagnosed based on clinical presentation prior to Week 36-38 and/or lab test results between Week 36-38.
Time frame: Upto 36-38 weeks of gestation
Population: ITT set was used which consisted of participants who were randomized, received at least one dose of study medication (Day 0 at Visit 1 is considered the first dose of study medication), and who had a single fetus.
| Arm | Measure | Value (NUMBER) |
|---|---|---|
| Azithromycin + Chloroquine | Percentage of Participants With Sexually Transmitted Infections From First Dose to 36-38 Weeks of Gestation | 12.32 Percentage of participants |
| Sulfadoxine + Pyrimethamine | Percentage of Participants With Sexually Transmitted Infections From First Dose to 36-38 Weeks of Gestation | 16.47 Percentage of participants |
Percentage of Participants With Sub-optimal Pregnancy Outcome Including Neonatal Death and Congenital Malformation
Sub-optimal pregnancy outcome including neonatal deaths and congenital malformations, defined as any of the following: live-borne neonate (singleton) with low birth-weight (or LBW for short, defined as live birth weight \<2,500g), premature birth (\<37 weeks), abortion (≤28 weeks), still birth (\>28 weeks), neonatal death, congenital malformation, lost to follow-up prior to termination of pregnancy or delivery, or missing birth weight of the neonates.
Time frame: Approximately 40 weeks of gestational age.
Population: ITT set was used which consisted of participants who were randomized, received at least one dose of study medication (Day 0 at Visit 1 was considered the first dose of study medication), and who had a single fetus. N=Total Outcomes.
| Arm | Measure | Value (NUMBER) |
|---|---|---|
| Azithromycin + Chloroquine | Percentage of Participants With Sub-optimal Pregnancy Outcome Including Neonatal Death and Congenital Malformation | 28.51 Percentage of participants |
| Sulfadoxine + Pyrimethamine | Percentage of Participants With Sub-optimal Pregnancy Outcome Including Neonatal Death and Congenital Malformation | 26.51 Percentage of participants |
Percentage of Participants With Sub-optimal Pregnancy Outcome in Efficacy Analyzable Per Protocol (PP) Population
Adverse pregnancy outcomes were defined as live-borne neonate (singleton) with LBW (\<2,500g), premature births (\<37 weeks as confirmed by the Ballard score), abortion (≤28 weeks), still birth (\>28 weeks), lost to follow-up prior to termination of pregnancy or delivery, or missing birth weight of the neonates.
Time frame: Approximately 40 weeks of gestational age
Population: Subset of ITT participants: outcome or withdrawal occurred on or before 8/27/2013 (date of study termination), compliant with study medication, birth weight measured on or before 7 days after birth if not already a failure, and did not switch to standard of care.
| Arm | Measure | Value (NUMBER) |
|---|---|---|
| Azithromycin + Chloroquine | Percentage of Participants With Sub-optimal Pregnancy Outcome in Efficacy Analyzable Per Protocol (PP) Population | 10.38 Percentage of Participants |
| Sulfadoxine + Pyrimethamine | Percentage of Participants With Sub-optimal Pregnancy Outcome in Efficacy Analyzable Per Protocol (PP) Population | 10.12 Percentage of Participants |
Percentage of Participants With Treponema Pallidum Infection at 36-38 Weeks of Gestation
Participants positive for Treponema pallidum infection was diagnosed based on laboratory result at 36-38 weeks of gestation. Treponema Pallidum particle Agglutination Assay was used.
Time frame: At 36-38 weeks of gestation
Population: ITT set was used which consisted of participants who were randomized, received at least one dose of study medication (Day 0 at Visit 1 is considered the first dose of study medication), and who had a single fetus. N=Number of participants with laboratory test results at 36-38 weeks of gestation.
| Arm | Measure | Value (NUMBER) |
|---|---|---|
| Azithromycin + Chloroquine | Percentage of Participants With Treponema Pallidum Infection at 36-38 Weeks of Gestation | 0.93 Percentage of participants |
| Sulfadoxine + Pyrimethamine | Percentage of Participants With Treponema Pallidum Infection at 36-38 Weeks of Gestation | 2.01 Percentage of participants |
Percentage of Participants With Trichomonas Vaginalis Infection at 36-38 Weeks of Gestation
Participants positive for Trichomonas vaginalis infection was diagnosed based on laboratory result at 36-38 weeks of gestation. A vaginal swab was collected for the laboratory test.
Time frame: At 36-38 weeks of gestation
Population: ITT set was used which consisted of participants who were randomized, received at least one dose of study medication (Day 0 at Visit 1 is considered the first dose of study medication), and who had a single fetus. N=Number of participants with laboratory test results at 36-38 weeks of gestation.
| Arm | Measure | Value (NUMBER) |
|---|---|---|
| Azithromycin + Chloroquine | Percentage of Participants With Trichomonas Vaginalis Infection at 36-38 Weeks of Gestation | 8.24 Percentage of participants |
| Sulfadoxine + Pyrimethamine | Percentage of Participants With Trichomonas Vaginalis Infection at 36-38 Weeks of Gestation | 10.67 Percentage of participants |
Percentage of Perinatal or Neonatal Deaths
Percentage of perinatal or neonatal deaths were noted.
Time frame: Day 28 after delivery.
Population: ITT set was used which consisted of participants who were randomized, received at least one dose of study medication (Day 0 at Visit 1 was considered the first dose of study medication), and who had a single fetus. N=Number of total live births.
| Arm | Measure | Value (NUMBER) |
|---|---|---|
| Azithromycin + Chloroquine | Percentage of Perinatal or Neonatal Deaths | 2.19 Percentage of neonates |
| Sulfadoxine + Pyrimethamine | Percentage of Perinatal or Neonatal Deaths | 1.85 Percentage of neonates |
Sexually Transmitted Infection (STI) Episodes Per Participant
Number of episodes of sexually transmitted infection episodes per participant were noted. The STI's including Treponema pallidum, Neisseria gonorrhoeae, Chlamydia trachomatis, from first dose to delivery (diagnosis was based on clinical presentation and lab results).
Time frame: Approximately 40 weeks of gestational age .
Population: ITT set was used which consisted of participants who were randomized, received at least one dose of study medication (Day 0 at Visit 1 was considered the first dose of study medication), and who had a single fetus. N=Number of participants with available data.
| Arm | Measure | Value (LEAST_SQUARES_MEAN) |
|---|---|---|
| Azithromycin + Chloroquine | Sexually Transmitted Infection (STI) Episodes Per Participant | 0.14 Number of episodes |
| Sulfadoxine + Pyrimethamine | Sexually Transmitted Infection (STI) Episodes Per Participant | 0.19 Number of episodes |