A Phase 3 interventional study of Lamivudine and Lamivudine/Zidovudine in HIV Infections and Pregnancy, sponsored by National Institute of Allergy and Infectious Diseases (NIAID). Completed at 49 sites in 4 countries. Open to female participants aged 14 Years and older. Per ClinicalTrials.gov, last updated 2021-11-01.
Sponsored by National Institute of Allergy and Infectious Diseases (NIAID) · Phase 3, Interventional, and Treatment
The best anti-HIV treatment regimen for pregnant women is not known. Protease inhibitors (PIs) are often used, but they have side effects that may be harmful for pregnant women. It is not known if treatment regimens that do not include PIs are as effective in pregnant women as those that include PIs. This trial will compare two anti-HIV treatment plans, one with and one without PIs, in women who start HIV treatment during pregnancy. The study will evaluate the effects of the anti-HIV drugs on the developing infant and prevention of mother-to-child HIV transmission during pregnancy.
The optimal treatment strategy for women who initiate antiretroviral therapy during pregnancy is not known. Although PI-based antiretroviral regimens are prescribed with increasing frequency among pregnant women, the efficacy and safety of this approach is unknown. Pregnant women are at increased risk for glucose intolerance and insulin resistance; PIs are associated with glucose intolerance. Physiologic differences between pregnant women and nonpregnant adults may alter the pharmacokinetics of antiretroviral regimens. Fetal safety considerations and effects on perinatal HIV transmission must also be considered when selecting an antiretroviral regimen for pregnant women. This trial will compare PI-based and PI-sparing antiretroviral regimens for women initiating antiretroviral therapy in pregnancy.
Women will be stratified on the basis of viral load (50,000 or less copies/ml or greater than 50,000 copies/ml) and gestational age at entry (20 or less weeks or greater than 20 weeks) and then randomized to one of two treatment groups. Group A will receive the PI nelfinavir (NFV) with zidovudine (ZDV) and lamivudine (d4T); Group B will receive nevirapine (NVP) with ZDV and d4T. Women will have clinic visits for physical and obstetrical examinations at 2, 4, 6, and 8 weeks after entry and then every 4 weeks until delivery. After delivery, infants in both groups may receive ZDV until they are 6 weeks old. Infants are evaluated for safety and to test the infant's blood for HIV-1 at birth and at Weeks 2, 8, 16, and 24.
Women will continue on assigned antiretroviral therapy postpartum and will have 11 postpartum clinic visits over a period of 2 years. Blood samples from women will be evaluated for safety and for virologic, pharmacokinetic, and metabolic studies. The first 12 women randomized to Group A will undergo a 4-hour pharmacokinetic profile at 32 to 36 weeks gestation and at 8 weeks postpartum to determine the timing of the nelfinavir trough. The first 20 women randomized to Group B will undergo an 8-hour pharmacokinetic profile at either 16 to 24 weeks or 32 to 36 weeks gestation and then again at 8 weeks postpartum to characterize pharmacokinetics of nevirapine at steady state in pregnancy and in the postpartum period.
4,734 studies on the registry are indexed under HIV Infections; 244 are open to participants now.
This study's enrollment of 440 is above the median of 80 across 3,489 interventional studies indexed under HIV Infections.
Browse HIV Infections studies →National Institute of Allergy and Infectious Diseases (NIAID) is the lead sponsor of 2,446 studies on the registry; 179 are open to participants now.
Of its 405 completed or terminated interventional studies of FDA-regulated products, 302 (75%) have results posted.
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Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.
Exclusion Criteria:
Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
The human immunodeficiency virus, which weakens the immune system.
Many studies now accept people whose HIV is controlled on treatment, judged by the viral load and the CD4 count. Check the limits this study sets.
The number of CD4 cells, a type of white blood cell, in a given amount of blood. It is used to follow how well the immune system is doing in HIV.
Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.
You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.
HIV
The human immunodeficiency virus, which weakens the immune system.
Many studies now accept people whose HIV is controlled on treatment, judged by the viral load and the CD4 count. Check the limits this study sets.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
CD4 count
The number of CD4 cells, a type of white blood cell, in a given amount of blood. It is used to follow how well the immune system is doing in HIV.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Informed consent
Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.
You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Drug pages: Lamivudine · Zidovudine
Proportion of women in each treatment group who continue on original therapy with virologic suppression to less than 500 copies/ml at 34 weeks gestation (or the last viral load determination prior to delivery)
proportion of women in each treatment group who continue on original therapy with virologic suppression to less than 500 copies/ml at 48 weeks postpartum
Proportion of women in each treatment group who continue on original therapy with virologic suppression to less than 50 copies/ml at 34 weeks gestation (or the last viral load determination prior to delivery)
proportion of women in each treatment group who continue on original therapy with virologic suppression to less than 50 copies/ml at 48 weeks postpartum, and to less than 500 and 50 copies/ml at 104 weeks postpartum
study treatment adherence and health status by self-report, correlated with predose nelfinavir or nevirapine level at 34 weeks gestation and 8 weeks postpartum
difference between postpartum and pregnancy 12-hour area under the concentration curve (AUC) for nevirapine
time of trough levels in relation to the morning dose of nevirapine and nelfinavir at 34 weeks gestation and 8 weeks postpartum and correlation of trough levels with viral load
incidence of HIV viral resistance by genotype among women in each treatment group at the time of virologic failure
incidence of abnormal glucose tolerance, gestational diabetes, and abnormal lactate levels during pregnancy in each treatment group
incidence of impaired glucose tolerance, diabetes, hyperinsulinemia, and elevated cholesterol and triglycerides at 8 weeks postpartum in each treatment group
incidence of anemia, hypoglycemia, and abnormal liver function studies among infants born to women in each treatment group
incidence of prematurity (less than 37 weeks), extreme prematurity (less than 32 weeks), low birth weight (less than 2.5 kg), and very low birth weight (less than 1.5 kg) among infants born to women in each treatment group
perinatal HIV transmission among infants born to women in each treatment group
This study is completed, as verified in Oct 2021. You cannot join it, but the record below documents what was studied.
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