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Comparison of Three Anti-HIV Regimens to Prevent Nevirapine Resistance in Women Who Take Nevirapine During Pregnancy

Maintaining Options for Mothers Study (MOMS): A Phase II Randomized Comparison of Three Antiretroviral Strategies Administered for 7 or 21 Days to Reduce the Emergence of Nevirapine Resistant HIV-1 Following a Single Intrapartum Dose of Nevirapine

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00099632
Enrollment
484
Registered
2004-12-20
Start date
2006-03-31
Completion date
2011-11-30
Last updated
2021-11-04

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

HIV Infections

Keywords

Treatment Naive

Brief summary

HIV infected pregnant women may take single-dose nevirapine (SD NVP) prior to giving birth to prevent mother-to-child transmission (MTCT) of HIV. However, SD NVP may cause NVP resistance in the mother, potentially ruling out some treatment options in the future. The purpose of this study is to determine which of three anti-HIV drug regimens most effectively reduces the development of maternal NVP resistance in HIV infected pregnant women. The effectiveness of short-term (7 day therapy) versus long-term (21-day therapy) regimens will also be compared. The study hypotheses are: 1) intrapartum SD NVP with a 21-day course of antiretroviral therapy (ART) results in less frequent selection of NVP-resistant HIV-1 variants than intrapartum SD NVP with a 7-day course of ART, and 2) a 7- or 21-day course of lamivudine/zidovudine (3TC/ZDV), emtricitabine/tenofovir disoproxil fumarate (FTC/TDF), or lopinavir/ritonavir (LPV/r) following SD NVP will not select nucleoside reverse transcriptase inhibitor (NRTI)- or protease inhibitor (PI)- resistant HIV-1 variants.

Detailed description

A major disadvantage of giving SD NVP is the potential for maternal development of NVP resistance and additional resistance to other nonnucleoside reverse transcriptase inhibitors (NNRTI) in the mother; as a result, future treatment options may be limited for these HIV infected women. The purpose of the study is to determine which of three ART regimens most effectively deters the development of maternal NVP resistance in HIV infected pregnant women postpartum. This study also compared the effectiveness of short-term versus long-term ART in discouraging the development of maternal NVP resistance. Some mothers in this study received ZDV monotherapy prior to SD NVP administration; initiation of ZDV monotherapy was at the discretion of the site investigator and was be provided by this study. Randomization was stratified by receipt of ZDV monotherapy during the pregnancy. Prior to labor, mothers were randomly assigned to receive SD NVP at the onset of labor and one of three postpartum ART regimens: 3TC/ZDV, FTC/TDF, and LPV/r. In addition, participants were randomly assigned to receive 7 or 21 days of their assigned postpartum treatment. Mothers were followed for 96 weeks following delivery; there were 11 study visits for mothers during the study. At the onset of labor, medical and medication history, a targeted physical exam, and an obstetrical exam occurred. Additional physical exams occurred on Day 1 and Weeks 1 and 3. Blood collection occurred at 8 study visits between Weeks 3 and 96. Infants were followed for up to 96 weeks after birth; there were 8 study visits for infants during the study. Infants who had ever been breastfed had study visits at Weeks 16, 24, 48, and 96, and at about 1 and 2 years of age. A physical exam, medication history, and blood collection occurred at each infant visit. Mothers and infants could be prescribed continuing ART, but such ART was be provided by this study.

Interventions

DRUGEmtricitabine/Tenofovir Disoproxil Fumarate

200mg/300mg as one tablet taken orally once daily

DRUGLamivudine/Zidovudine

150mg/300mg as one tablet taken orally twice daily

DRUGLopinavir/Ritonavir

133.3mg/33.3mg as three capsules taken orally twice daily

DRUGsingle dose Nevirapine

one 200 mg tablet taken orally

Sponsors

National Institute of Allergy and Infectious Diseases (NIAID)
Lead SponsorNIH

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
FEMALE
Age
13 Years to No maximum
Healthy volunteers
No

Inclusion criteria

for Mothers: * HIV-1 infected * CD4 count 250 cells/mm3 or greater within 30 days of study entry * The following laboratory values obtained within 30 days prior to study entry: absolute neutropil count \>= 750/mm3; hemoglobin \>= 8.0 g/dL; platelet count \>= 50,000/mm3; calculated creatinine clearance (Cockcroft-Gault formula) \> 60 mL/min; AST(SGOT) and ALT(SGPT) \< 5 x ULN; total bilirubin \< 1.5 X ULN. * Pregnant with a viable fetus at 28 to 38 weeks gestation at study entry. * Willing to give birth to baby in a hospital or clinic * Written informed consent from parent or guardian, if applicable

Exclusion criteria

for Mothers: * Any ART, including single-dose NVP, prior to study entry. Mothers who receive ZDV monotherapy prior to labor under the supervision of the site investigator are not excluded. * Known allergy or sensitivity to study drugs or their formulations * Current drug or alcohol abuse that may interfere with the study * Serious illness requiring systemic treatment or hospitalization. Participants who complete therapy or are clinically stable on therapy for at least 14 days prior to study entry are not excluded. * Hepatitis B surface antigen positive within 180 days prior to study entry * Active tuberculosis infection requiring treatment * Prior enrollment in this study * Expect to use ART, except ZDV monotherapy, prior to onset of labor * Expect to use ART other than study medications from delivery to 9 weeks postpartum

Design outcomes

Primary

MeasureTime frameDescription
Number of Participants With New Circulating Nonnucleoside Reverse Transcriptase Inhibitor (NNRTI)-Resistant Variants as Detected by Standard Composite (Bulk) Genotyping2 and 6 weeks after completion of treatmentFor the 7-day treatment duration group, only the genotype results from weeks 3 and 7 contributed to the primary endpoint; For the 21-day treatment duration groups, only the genotype results from weeks 5 and 9 contributed to primary endpoint. 10 participants who did not have resistance samples available were excluded from the primary endpoint analysis.

Secondary

MeasureTime frameDescription
Number of Participants With New PI-resistant Variants as Detected by Standard Composite (Bulk) Genotyping.2 and 6 weeks after completion of treatmentFor the 7-day treatment duration group, only the genotype results from weeks 3 and 7 contributed; For the 21-day treatment duration groups, only the genotype results from weeks 5 and 9 contributed.
Number of Participants With New Circulating NRTI-resistant Variants Detected by Standard Composite (Bulk) Genotyping.2 and 6 weeks after completion of treatmentFor the 7-day treatment duration group, only the genotype results from weeks 3 and 7 contributed; For the 21-day treatment duration groups, only the genotype results from weeks 5 and 9 contributed.
Severe (Grade 3) and Higher Adverse Events and Any Grade Adverse Event That Leads to a Treatment Change From First Day of Study Treatment to Week 12From first day of study treatment to week 12Grade 3 or higher signs and symptoms, laboratory abnormalities, events that are reported through the EAE system, and any grade event that leads to a treatment change from first day of study treatment to week 12. Grade 3 = Severe Grade 4 = Life threatening Grade 5 = Death
Number of Participants Who Discontinued Study Treatment PrematurelyFrom first day of study treatment to last day of study treatment (up to 21 days)participants assigned to 7-day treatment arm and 21-day treatment arm were supposed to stay in study treatment for 7 days and 21 days respectively.

Countries

Haiti, India, Malawi, South Africa, Tanzania, Uganda

Participant flow

Recruitment details

Study participants were recruited at 8 sites: 2 from South Africa, 2 from India, and 1 each from Haiti, Uganda, Tanzania, and Malawi, between January 2007 to October 2009.

Pre-assignment details

62 participants who randomized but did not start study treatment were excluded from the analysis. These 62 participants were either off study prior to delivery or delivered on study but did not take any dose of study treatment. All the analyses were restricted to the 422 women who received study treatment.

Participants by arm

ArmCount
7-day Lamivudine/Zidovudine (3TC/ZDV)
SD NVP and 3TC/ZDV provided at onset of active labor, followed by 7 days of 3TC/ZDV.
73
21-day Lamivudine/Zidovudine (3TC/ZDV)
SD NVP and 3TC/ZDV provided at onset of active labor, followed by 21 days of 3TC/ZDV.
68
7-day Emtricitabine/Tenofovir Disoproxil Fumarate (FTC/TDF)
SD NVP and FTC/TDF provided at onset of active labor, followed by 7 days of FTC/TDF.
75
21-day Emtricitabine/Tenofovir Disoproxil Fumarate (FTC/TDF)
SD NVP and FTC/TDF provided at onset of active labor, followed by 21 days of FTC/TDF.
67
7-day Lopinavir/Ritonavir (LPV/r)
SD NVP and LPV/r provided at onset of active labor, followed by 7 days of LPV/r.
71
21-day Lopinavir/Ritonavir (LPV/r)
SD NVP and LPV/r provided at onset of active labor, followed by 7 days of LPV/r
68
Total422

Withdrawals & dropouts

PeriodReasonFG000FG001FG002FG003FG004FG005
Overall StudyLost to Follow-up103110
Overall StudyProtocol Violation000001
Overall StudyWithdrawal by Subject010001

Baseline characteristics

CharacteristicTotal7-day Lamivudine/Zidovudine (3TC/ZDV)21-day Lamivudine/Zidovudine (3TC/ZDV)7-day Emtricitabine/Tenofovir Disoproxil Fumarate (FTC/TDF)21-day Emtricitabine/Tenofovir Disoproxil Fumarate (FTC/TDF)7-day Lopinavir/Ritonavir (LPV/r)21-day Lopinavir/Ritonavir (LPV/r)
Actual ZDV exposure during pregnancy
no
155 participants27 participants21 participants28 participants25 participants28 participants26 participants
Actual ZDV exposure during pregnancy
yes
267 participants46 participants47 participants47 participants42 participants43 participants42 participants
Age, Continuous27 years
STANDARD_DEVIATION 5
27 years
STANDARD_DEVIATION 6
27 years
STANDARD_DEVIATION 5
26 years
STANDARD_DEVIATION 5
26 years
STANDARD_DEVIATION 5
27 years
STANDARD_DEVIATION 6
26 years
STANDARD_DEVIATION 5
Age, Customized
>= 40 years
7 participants2 participants1 participants1 participants0 participants2 participants1 participants
Age, Customized
Between 13 and 19 years
17 participants2 participants1 participants5 participants3 participants3 participants3 participants
Age, Customized
Between 20 and 29 years
289 participants49 participants46 participants53 participants46 participants47 participants48 participants
Age, Customized
Between 30 and 39 years
109 participants20 participants20 participants16 participants18 participants19 participants16 participants
Gestational age at NVP dosing, Continuous38 weeks
STANDARD_DEVIATION 2
38 weeks
STANDARD_DEVIATION 2
39 weeks
STANDARD_DEVIATION 2
38 weeks
STANDARD_DEVIATION 2
38 weeks
STANDARD_DEVIATION 3
38 weeks
STANDARD_DEVIATION 2
38 weeks
STANDARD_DEVIATION 2
Region of Enrollment
Haiti
58 participants12 participants11 participants10 participants7 participants9 participants9 participants
Region of Enrollment
India
104 participants15 participants18 participants20 participants19 participants16 participants16 participants
Region of Enrollment
Malawi
85 participants13 participants14 participants14 participants12 participants17 participants15 participants
Region of Enrollment
South Africa
60 participants13 participants8 participants10 participants9 participants10 participants10 participants
Region of Enrollment
Tanzania
14 participants3 participants1 participants3 participants3 participants2 participants2 participants
Region of Enrollment
Uganda
101 participants17 participants16 participants18 participants17 participants17 participants16 participants
Screening CD4 count Categorical
250-349 cells/mm^3
69 participants15 participants7 participants8 participants6 participants20 participants13 participants
Screening CD4 count Categorical
350-499 cells/mm^3
150 participants24 participants21 participants29 participants29 participants25 participants22 participants
Screening CD4 count Categorical
>=500 cells/mm^3
203 participants34 participants40 participants38 participants32 participants26 participants33 participants
Screening CD4 count Continuous545 cells/mm^3
STANDARD_DEVIATION 216
538 cells/mm^3
STANDARD_DEVIATION 244
585 cells/mm^3
STANDARD_DEVIATION 215
537 cells/mm^3
STANDARD_DEVIATION 186
545 cells/mm^3
STANDARD_DEVIATION 191
505 cells/mm^3
STANDARD_DEVIATION 205
566 cells/mm^3
STANDARD_DEVIATION 249
Screening HIV-1 RNA Categorical
100000-749999 copies/mL
28 participants8 participants3 participants4 participants5 participants4 participants4 participants
Screening HIV-1 RNA Categorical
10000-99999 copies/mL
112 participants17 participants17 participants18 participants14 participants20 participants26 participants
Screening HIV-1 RNA Categorical
1000-9999 copies/mL
148 participants17 participants26 participants33 participants25 participants29 participants18 participants
Screening HIV-1 RNA Categorical
<=400 copies/mL
83 participants17 participants13 participants13 participants12 participants12 participants16 participants
Screening HIV-1 RNA Categorical
401-999 copies/mL
48 participants12 participants8 participants7 participants11 participants6 participants4 participants
Screening HIV-1 RNA Categorical
>=750000 copies/mL
1 participants1 participants0 participants0 participants0 participants0 participants0 participants
Screening HIV-1 RNA Categorical
Missing/Unknown
2 participants1 participants1 participants0 participants0 participants0 participants0 participants
Screening HIV-1 RNA Continuous3.56 log10 copies/mL
STANDARD_DEVIATION 0.9
3.50 log10 copies/mL
STANDARD_DEVIATION 1.01
3.55 log10 copies/mL
STANDARD_DEVIATION 0.9
3.54 log10 copies/mL
STANDARD_DEVIATION 0.82
3.50 log10 copies/mL
STANDARD_DEVIATION 0.88
3.63 log10 copies/mL
STANDARD_DEVIATION 0.9
3.66 log10 copies/mL
STANDARD_DEVIATION 0.92
Sex: Female, Male
Female
422 Participants73 Participants68 Participants75 Participants67 Participants71 Participants68 Participants
Sex: Female, Male
Male
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
EG003
affected / at risk
EG004
affected / at risk
EG005
affected / at risk
deaths
Total, all-cause mortality
— / —— / —— / —— / —— / —— / —
other
Total, other adverse events
0 / 730 / 680 / 750 / 670 / 710 / 68
serious
Total, serious adverse events
2 / 730 / 681 / 750 / 671 / 710 / 68

Outcome results

Primary

Number of Participants With New Circulating Nonnucleoside Reverse Transcriptase Inhibitor (NNRTI)-Resistant Variants as Detected by Standard Composite (Bulk) Genotyping

For the 7-day treatment duration group, only the genotype results from weeks 3 and 7 contributed to the primary endpoint; For the 21-day treatment duration groups, only the genotype results from weeks 5 and 9 contributed to primary endpoint. 10 participants who did not have resistance samples available were excluded from the primary endpoint analysis.

Time frame: 2 and 6 weeks after completion of treatment

Population: 412 women with primary endpoint results available

ArmMeasureValue (NUMBER)
7-day Lamivudine/Zidovudine (3TC/ZDV)Number of Participants With New Circulating Nonnucleoside Reverse Transcriptase Inhibitor (NNRTI)-Resistant Variants as Detected by Standard Composite (Bulk) Genotyping1 participants
21-day Lamivudine/Zidovudine (3TC/ZDV)Number of Participants With New Circulating Nonnucleoside Reverse Transcriptase Inhibitor (NNRTI)-Resistant Variants as Detected by Standard Composite (Bulk) Genotyping0 participants
7-day Emtricitabine/Tenofovir Disoproxil Fumarate (FTC/TDF)Number of Participants With New Circulating Nonnucleoside Reverse Transcriptase Inhibitor (NNRTI)-Resistant Variants as Detected by Standard Composite (Bulk) Genotyping0 participants
21-day Emtricitabine/Tenofovir Disoproxil Fumarate (FTC/TDF)Number of Participants With New Circulating Nonnucleoside Reverse Transcriptase Inhibitor (NNRTI)-Resistant Variants as Detected by Standard Composite (Bulk) Genotyping0 participants
7-day Lopinavir/Ritonavir (LPV/r)Number of Participants With New Circulating Nonnucleoside Reverse Transcriptase Inhibitor (NNRTI)-Resistant Variants as Detected by Standard Composite (Bulk) Genotyping3 participants
21-day Lopinavir/Ritonavir (LPV/r)Number of Participants With New Circulating Nonnucleoside Reverse Transcriptase Inhibitor (NNRTI)-Resistant Variants as Detected by Standard Composite (Bulk) Genotyping1 participants
Comparison: Compare proportion of women with new NNRTI-resistant variants between treatment durations (7-day vs. 21 day), pooled over ARV regimens (3TC/ZDV, FTC/TDF, and LPV/r), stratified by ARV regimen and the actual receipt of antenatal ZDVp-value: 0.37Cochran-Mantel-Haenszel
Comparison: Compare proportion of women with new NNRTI-resistant variants among ARV regimens (3TC/ZDV vs. FTC/TDF vs. LPV/r), pooled over treatment durations 7-day and 21-day, stratified by treatment duration and the actual receipt of antenatal ZDVp-value: 0.091Cochran-Mantel-Haenszel
Secondary

Number of Participants Who Discontinued Study Treatment Prematurely

participants assigned to 7-day treatment arm and 21-day treatment arm were supposed to stay in study treatment for 7 days and 21 days respectively.

Time frame: From first day of study treatment to last day of study treatment (up to 21 days)

ArmMeasureValue (NUMBER)
7-day Lamivudine/Zidovudine (3TC/ZDV)Number of Participants Who Discontinued Study Treatment Prematurely0 participants
21-day Lamivudine/Zidovudine (3TC/ZDV)Number of Participants Who Discontinued Study Treatment Prematurely2 participants
7-day Emtricitabine/Tenofovir Disoproxil Fumarate (FTC/TDF)Number of Participants Who Discontinued Study Treatment Prematurely0 participants
21-day Emtricitabine/Tenofovir Disoproxil Fumarate (FTC/TDF)Number of Participants Who Discontinued Study Treatment Prematurely0 participants
7-day Lopinavir/Ritonavir (LPV/r)Number of Participants Who Discontinued Study Treatment Prematurely0 participants
21-day Lopinavir/Ritonavir (LPV/r)Number of Participants Who Discontinued Study Treatment Prematurely5 participants
Secondary

Number of Participants With New Circulating NRTI-resistant Variants Detected by Standard Composite (Bulk) Genotyping.

For the 7-day treatment duration group, only the genotype results from weeks 3 and 7 contributed; For the 21-day treatment duration groups, only the genotype results from weeks 5 and 9 contributed.

Time frame: 2 and 6 weeks after completion of treatment

ArmMeasureValue (NUMBER)
7-day Lamivudine/Zidovudine (3TC/ZDV)Number of Participants With New Circulating NRTI-resistant Variants Detected by Standard Composite (Bulk) Genotyping.0 participants
21-day Lamivudine/Zidovudine (3TC/ZDV)Number of Participants With New Circulating NRTI-resistant Variants Detected by Standard Composite (Bulk) Genotyping.1 participants
7-day Emtricitabine/Tenofovir Disoproxil Fumarate (FTC/TDF)Number of Participants With New Circulating NRTI-resistant Variants Detected by Standard Composite (Bulk) Genotyping.1 participants
21-day Emtricitabine/Tenofovir Disoproxil Fumarate (FTC/TDF)Number of Participants With New Circulating NRTI-resistant Variants Detected by Standard Composite (Bulk) Genotyping.1 participants
7-day Lopinavir/Ritonavir (LPV/r)Number of Participants With New Circulating NRTI-resistant Variants Detected by Standard Composite (Bulk) Genotyping.1 participants
21-day Lopinavir/Ritonavir (LPV/r)Number of Participants With New Circulating NRTI-resistant Variants Detected by Standard Composite (Bulk) Genotyping.0 participants
Secondary

Number of Participants With New PI-resistant Variants as Detected by Standard Composite (Bulk) Genotyping.

For the 7-day treatment duration group, only the genotype results from weeks 3 and 7 contributed; For the 21-day treatment duration groups, only the genotype results from weeks 5 and 9 contributed.

Time frame: 2 and 6 weeks after completion of treatment

ArmMeasureValue (NUMBER)
7-day Lamivudine/Zidovudine (3TC/ZDV)Number of Participants With New PI-resistant Variants as Detected by Standard Composite (Bulk) Genotyping.0 participants
21-day Lamivudine/Zidovudine (3TC/ZDV)Number of Participants With New PI-resistant Variants as Detected by Standard Composite (Bulk) Genotyping.0 participants
7-day Emtricitabine/Tenofovir Disoproxil Fumarate (FTC/TDF)Number of Participants With New PI-resistant Variants as Detected by Standard Composite (Bulk) Genotyping.0 participants
21-day Emtricitabine/Tenofovir Disoproxil Fumarate (FTC/TDF)Number of Participants With New PI-resistant Variants as Detected by Standard Composite (Bulk) Genotyping.0 participants
7-day Lopinavir/Ritonavir (LPV/r)Number of Participants With New PI-resistant Variants as Detected by Standard Composite (Bulk) Genotyping.0 participants
21-day Lopinavir/Ritonavir (LPV/r)Number of Participants With New PI-resistant Variants as Detected by Standard Composite (Bulk) Genotyping.0 participants
Secondary

Severe (Grade 3) and Higher Adverse Events and Any Grade Adverse Event That Leads to a Treatment Change From First Day of Study Treatment to Week 12

Grade 3 or higher signs and symptoms, laboratory abnormalities, events that are reported through the EAE system, and any grade event that leads to a treatment change from first day of study treatment to week 12. Grade 3 = Severe Grade 4 = Life threatening Grade 5 = Death

Time frame: From first day of study treatment to week 12

ArmMeasureValue (NUMBER)
7-day Lamivudine/Zidovudine (3TC/ZDV)Severe (Grade 3) and Higher Adverse Events and Any Grade Adverse Event That Leads to a Treatment Change From First Day of Study Treatment to Week 125 participants
21-day Lamivudine/Zidovudine (3TC/ZDV)Severe (Grade 3) and Higher Adverse Events and Any Grade Adverse Event That Leads to a Treatment Change From First Day of Study Treatment to Week 121 participants
7-day Emtricitabine/Tenofovir Disoproxil Fumarate (FTC/TDF)Severe (Grade 3) and Higher Adverse Events and Any Grade Adverse Event That Leads to a Treatment Change From First Day of Study Treatment to Week 121 participants
21-day Emtricitabine/Tenofovir Disoproxil Fumarate (FTC/TDF)Severe (Grade 3) and Higher Adverse Events and Any Grade Adverse Event That Leads to a Treatment Change From First Day of Study Treatment to Week 120 participants
7-day Lopinavir/Ritonavir (LPV/r)Severe (Grade 3) and Higher Adverse Events and Any Grade Adverse Event That Leads to a Treatment Change From First Day of Study Treatment to Week 122 participants
21-day Lopinavir/Ritonavir (LPV/r)Severe (Grade 3) and Higher Adverse Events and Any Grade Adverse Event That Leads to a Treatment Change From First Day of Study Treatment to Week 122 participants

Source: ClinicalTrials.gov · Data processed: Mar 24, 2026