Pharmacokinetic Properties of Antiretroviral and Anti-Tuberculosis Drugs During Pregnancy and Postpartum

Completed

• Conditions: Tuberculosis; HIV Infections
• Interventions: Drug: Bictegravir (BIC); Drug: Doravirine (DOR); Drug: Tenofovir alafenamide (TAF); Drug: Cabotegravir (CAB); Drug: Atazanavir/ritonavir (ATV/r); Drug: Lopinavir/ritonavir (LPV/r); Drug: Second-Line TB Treatment; Drug: Dolutegravir (DTG); Drug: Cobicistat; Drug: First-Line TB Treatment; Drug: Darunavir/ritonavir (DRV/r); Drug: Ritonavir

• Registration Number: NCT04518228
• Lead Sponsor: National Institute of Allergy and Infectious Diseases (NIAID)

Brief Summary

The purpose of this study is to evaluate the pharmacokinetic (PK) properties of antiretroviral (ARV) and anti-tuberculosis (TB) drugs administered during pregnancy and postpartum.

Detailed Description

This study will evaluate the pharmacokinetic (PK) properties of antiretroviral (ARV) and anti-tuberculosis (TB) drugs administered during pregnancy and postpartum.

IMPAACT 2026 is a Phase IV observational clinical study. Participants are not assigned to the drugs under study, but are already receiving the drugs for clinical care by prescription of their clinical care providers. They are enrolled into study arms according to the drugs they are receiving through clinical care, and if on multiple drugs of interest, are able to enroll into multiple arms simultaneously. No ARVs or TB treatment drugs are supplied as part of this study. All drugs under study are provided by non-study sources. The study sponsor added this observational study to an existing investigational new drug (IND) number for off-label use in case the participant's clinical care provider decides to prescribe a higher dose than the approved dose if the PK results for the approved dose indicate that drug exposure may be inadequate.

This study is comprised of five components which in turn are comprised of arms specific to each drug or drug combination being evaluated:

* Component 1 (Arms 1.1, 1.2. 1.3. 1.4. and 1.5): Pregnant women living with HIV (WLHIV) receiving oral ARVs and no TB drugs, and their infants.

* Component 2 (Arm 2.1): Pregnant WLHIV and HIV-uninfected women who received long-acting/extended release ARVs during pregnancy, and their infants.

* Component 3 (Arms 3.1, 3.2, and 3.3): Pregnant WLHIV receiving ARVs and first-line TB treatment, and their infants.

* Component 4 (Arm 4.1): Pregnant WLHIV and HIV-uninfected women receiving second-line TB treatment, and their infants.

* Component 5 (Arms 5.1, 5.2. and 5.3): Postpartum WLHIV breastfeeding while receiving oral ARVs, and their infants.

Each arm will open to accrual independently and will accrue independently over approximately 36 months from the first enrollment in each arm.

Participants in Component 1 will be followed up to 12 weeks after delivery for mothers and up to 24 weeks after birth for infants. Participants in Component 2 will be followed up to 5 weeks after delivery for mothers and infants. Participants in Components 3, 4, and 5 will be followed up to 24 weeks after delivery for mothers and infants.

Study visits may include:

* Component 1: Maternal clinical and laboratory evaluations and PK sampling at second trimester (2T), third trimester (3T), delivery, and 6-12 weeks post-partum (PP). Infant clinical evaluations and washout PK sampling at birth and 5-9 days after birth.

* Component 2: Maternal clinical and laboratory evaluations and PK sampling at delivery. Infant clinical evaluations and washout PK sampling at birth, 5-9 days, and 12-16 days after birth. Maternal and infant breast milk transfer PK sampling at 5-9 days, 12-16 days, and 3-5 weeks after delivery.

* Component 3: Maternal clinical and laboratory evaluations and PK sampling at second trimester (2T), third trimester (3T), delivery, and 2-8 weeks post-partum (PP). Infant clinical evaluations and washout PK sampling at birth and 5-9 days after birth. Maternal and infant breast milk transfer PK sampling at 5-9 days, 2-8 weeks, and 16-24 weeks after delivery.

* Component 4: Maternal clinical and laboratory evaluations and PK sampling at second trimester (2T), third trimester (3T), delivery, and 2-8 weeks post-partum (PP). Infant clinical evaluations and washout PK sampling at birth and 5-9 days after birth. Maternal and infant breast milk transfer PK sampling at 5-9 days, 2-8 weeks, and 16-24 weeks after delivery.

* Component 5: Maternal and infant clinical evaluations and breast milk transfer PK sampling at 5-9 days, 2-12 weeks, and 16-24 weeks after delivery.

Study Timeline

• Study First Submitted: 2020-03-05
• Study First Submitted QC: 2020-08-14
• Study First Posted: 2020-08-19
• Study Start: 2021-09-01
• Primary Completion: 2025-04-24
• Study Completion: 2025-04-24
• Status Verified: 2025-05
• Last Update Submitted: 2025-05-13
• Last Update Posted: 2025-05-15

Recruitment & Eligibility

• Status: COMPLETED
• Sex: Female
• Target Recruitment: 205

Inclusion Criteria

Component 1: Pregnant WLHIV receiving oral ARVs and no TB drugs, and their infants

• Mother is of legal age or otherwise able to provide independent informed consent as determined by site standard operating procedures (SOPs) and consistent with site institutional review board (IRB)/ethics committee (EC) policies and procedures, and is willing and able to provide written informed consent for her own and her infant's participation in this study.

• Prior to study entry, HIV status confirmed as HIV infected per study protocol.

• At study entry, pregnant and in one of the following two enrollment windows based on best available obstetrical estimate of gestational age:

  • Second trimester: gestational age of 20 0/7 to 26 6/7 weeks
  • Third trimester: gestational age of 30 0/7 to 37 6/7 weeks

• At study entry, receiving at least one of the following oral ARV drugs or drug combinations, based on maternal report and available medical records:

  • Arm 1.1: Bictegravir (BIC) 50 mg q.d.
  • Arm 1.2: Doravirine (DOR) 100 mg q.d.
  • Arm 1.3: Tenofovir alafenamide (TAF) - 10 mg q.d. boosted with cobicistat
  • Arm 1.4: TAF 25 mg q.d. without boosting
  • Arm 1.5: TAF 25 mg q.d. boosted with cobicistat or ritonavir

• At study entry, planning to continue the current ARV regimen through at least 12 weeks post-delivery, based on maternal report and available medical records.

• At study entry, has been receiving the drug or drug combination under study at the required dose for at least two weeks, based on maternal report and available medical records.

• At study entry, assessed by study staff as having no identified barriers to completing initial PK sampling within 20 0/7 - 26 6/7 weeks gestation (second trimester) or 30 0/7 to 37 6/7 weeks gestation (third trimester) and within 14 days of enrollment.

• At study entry, if receiving a generic formulation of the drug or drug combination under study, approval of the formulation per study protocol.

• At study entry, not receiving any TB drugs (for either prophylaxis or treatment), based on maternal report and available medical records.

Component 2: Pregnant WLHIV and HIV-uninfected women who received long-acting/extended release ARVs during pregnancy, and their infants

• If of legal age or otherwise able to provide independent informed consent as determined by site SOPs and consistent with site IRB/EC policies and procedures: Willing and able to provide written informed consent for her own and her infant's participation in this study.

• If not of legal age or otherwise unable to provide independent informed consent as determined by site SOPs and consistent with site IRB/EC policies and procedures: Parent/guardian or other legally authorized representative of the mother and her infant is willing and able to provide written informed consent for the mother and her infant's study participation; in addition, when applicable, the mother is willing and able to provide written assent for her own and her infant's study participation.

• At study entry, intends to deliver at the study-affiliated clinic or hospital, based on maternal report.

• At study entry, gestational age of at least 24 0/7 weeks based on best available obstetrical estimate of gestational age, and not yet delivered.

• At study entry, has received at least one administration of the following, based on available medical records, during the current pregnancy:

  • Arm 2.1: Long-acting injectable formulation of cabotegravir (CAB LA) (any dose)

Component 3: Pregnant WLHIV receiving ARVs with first-line TB treatment, and their infants

• Mother is of legal age or otherwise able to provide independent informed consent as determined by site SOPs and consistent with site IRB/EC policies and procedures, and is willing and able to provide written informed consent for her own and her infant's participation in this study.

• Prior to study entry, HIV status confirmed as HIV infected per study protocol.

• At study entry, pregnant and in one of the following two enrollment windows, based on best available obstetrical estimate of gestational age:

  • Second trimester: gestational age of 20 0/7 to 26 6/7 weeks
  • Third trimester: gestational age of 30 0/7 to 37 6/7 weeks

• At study entry, receiving at least two of the following first-line TB treatment drugs under study AND at least one of the following ARV drugs or drug combinations under study, based on maternal report and available medical records:

  • First-line TB treatment drugs:
  • Isoniazid (INH) 4-6 mg/kg (max 300 mg) q.d.
  • Rifampin (RIF) 8-12 mg/kg (max 600 mg) q.d.
  • Rifabutin (RFB) 150-300 mg q.d.
  • Ethambutol (EMB) 15-20 mg/kg q.d.
  • Pyrazinamide (PZA) 20-30 mg/kg q.d.
  • Moxifloxacin (MFX) 400 mg or 800mg q.d
  • ARVs:
  • Arm 3.1: Dolutegravir (DTG) 50 mg b.i.d. when combined with RIF or 50 mg q.d. if RIF is not part of the TB regimen
  • Arm 3.2: Atazanavir/ritonavir (ATV/r) ≥300/100 mg q.d. or Darunavir/ritonavir (DRV/r) ≥ 600/100 mg b.i.d.
  • Arm 3.3: Lopinavir/ritonavir (LPV/r) 800/200 mg b.i.d.

• At study entry, has been receiving the drug combination under study at the required dose for at least two weeks based on maternal report and available medical records.

• At study entry, assessed by study staff as having no identified barriers to completing initial PK sampling within 20 0/7 - 26 6/7 weeks gestation (second trimester) or 30 0/7 to 37 6/7 weeks gestation (third trimester) and within 14 days of enrollment.

• At study entry, if receiving a generic ARV or TB formulation of the drug or drug combination under study, approval of the formulation per study protocol.

• At study entry, planning to continue the current ARV regimen through at least 8 weeks post-delivery, based on maternal report and available medical records.

Component 4 Inclusion Criteria: Pregnant WLHIV and HIV-uninfected women receiving second-line TB treatment, and their infants

• Mother is of legal age or otherwise able to provide independent informed consent as determined by site SOPs and consistent with site IRB/EC policies and procedures, and is willing and able to provide written informed consent for her own and her infant's participation in this study.

• Prior to study entry, HIV status confirmed as HIV-infected or HIV-uninfected, per study protocol.

• At study entry, pregnant and in one of the following two enrollment windows based on best available obstetrical estimate of gestational age:

  • Second trimester: gestational age of 20 0/7 to 26 6/7 weeks
  • Third trimester: gestational age of 30 0/7 to 37 6/7 weeks

• At study entry, receiving at least one of the following second-line TB treatment drugs under study, based on maternal report and available medical records:

  • Arm 4.1: Second-line TB treatment drugs:
  • Levofloxacin (LFX) 750mg - 1000mg q.d.
  • Clofazimine (CFZ) 100mg q.d.
  • Linezolid (LZD) 300mg - 600mg q.d.
  • Bedaquiline (BDQ) 200mg t.i.w.
  • Delamanid (DLM) 100mg b.i.d.
  • Moxifloxacin (MFX) 400mg or 800mg q.d and at least one other second-line TB treatment drug under study

• At study entry, has been receiving the drugs under study at the required dose for at least two weeks, based on maternal report and available medical records.

• At study entry, assessed by study staff as having no identified barriers to completing initial PK sampling within 20 0/7 - 26 6/7 weeks gestation (second trimester) or 30 0/7 to 37 6/7 weeks gestation (third trimester) and within 14 days of enrollment.

• At study entry, if receiving a generic formulation of the drug(s) under study, approval of the formulation per study protocol.

Component 5: Postpartum WLHIV breastfeeding while receiving oral ARVs, and their infants

• Mother is of legal age or otherwise able to provide independent informed consent as determined by site SOPs and consistent with site IRB/EC policies and procedures, and is willing and able to provide written informed consent for her own and her infant's participation in this study.

• Prior to study entry, HIV status confirmed as HIV infected, per study protocol.

• At study entry, within 5-9 days post-delivery (inclusive).

• At study entry, breastfeeding mother-infant pair intends to continue exclusive breastfeeding through at least 16 weeks post-delivery.

• At study entry, mother is receiving any of the following oral ARV drugs or drug combinations:

  • Arm 5.1: Atazanavir/ritonavir (ATV/r)
  • Arm 5.2: Darunavir/ritonavir (DRV/r)
  • Arm 5.3: Lopinavir/ritonavir (LPV/r)

• At study entry, mother has been receiving the drug(s) or drug combination(s) under study at the required dose for at least two weeks, based on maternal report and available medical records.

• At study entry, assessed by study staff as having no identified barriers to completing initial PK sampling within the 5-9 days post-delivery PK sampling window.

• At study entry, mother is planning to continue the current ARV regimen through at least 16 weeks post-delivery, based on maternal report and available medical records.

• At study entry, if receiving a generic ARV formulation of the drug or drug combination under study, approval of the formulation per study protocol.

• At study entry, infant weighs at least 1000 grams, based on available medical records.

• At study entry, infant does not have any severe congenital malformation or other medical condition not compatible with life or that would interfere with study participation or interpretation, as judged by the site investigator.

Components 1-4

Exclusion Criteria

• At study entry, mother has received within the past 14 days medicines known to interfere with absorption, metabolism, or clearance of the drug or drug combination under study (see study protocol) based on maternal report and available medical records.

  • Note: RIF is permitted for mothers in Components 3 and 4 being evaluated for TB and ARV drug interactions.

• At study entry, has a clinical or laboratory finding or condition that, in the opinion of the site investigator, is likely to require a change of the ARV or TB drug under study during the period of study follow-up.

• Arms 1.3, 1.4 and 1.5 only: At study entry, mother has received TDF-based therapy within the past 6 months.

Component 5 Exclusion Criteria

• Mother is currently enrolled in Components 1, 2, 3, or 4.
• At study entry, the mother or infant has received within the past 14 days medicines known to interfere with absorption, metabolism, or clearance of the drug or drug combination under study based on maternal report and available medical records (see study protocol).
• At study entry, mother or infant has a clinical or laboratory finding or condition that, in the opinion of the site investigator, is likely to require a change of the drug under study during study follow-up.

Study & Design

• Study Type: OBSERVATIONAL
• Study Design: Not specified

Arm && Interventions

Group	Intervention	Description
Component 1: Arm 1.1: Bictegravir (BIC) 50 mg q.d.	Bictegravir (BIC)	Women ≥ 20 weeks gestation not receiving TB drugs and receiving bictegravir (BIC) 50 mg once daily (q.d.), and their infants
Component 1: Arm 1.2: Doravirine (DOR) 100 mg q.d.	Doravirine (DOR)	Women ≥ 20 weeks gestation not receiving TB drugs and receiving doravirine (DOR) 100 mg q.d., and their infants
Component 1: Arm 1.3: Tenofovir alafenamide (TAF) 10 mg q.d.	Tenofovir alafenamide (TAF)	Women ≥ 20 weeks gestation not receiving TB drugs and receiving tenofovir alafenamide (TAF) 10 mg q.d. boosted with cobicistat, and their infants
Component 1: Arm 1.5: TAF 25 mg q.d. with boosting	Tenofovir alafenamide (TAF)	Women ≥ 20 weeks gestation not receiving TB drugs and receiving TAF 25 mg q.d. boosted with cobicistat or ritonavir, and their infants
Component 1: Arm 1.4: TAF 25 mg q.d. without boosting	Tenofovir alafenamide (TAF)	Women ≥ 20 weeks gestation not receiving TB drugs and receiving TAF 25 mg q.d. without boosting, and their infants
Component 1: Arm 1.5: TAF 25 mg q.d. with boosting	Cobicistat	Women ≥ 20 weeks gestation not receiving TB drugs and receiving TAF 25 mg q.d. boosted with cobicistat or ritonavir, and their infants
Component 3: Arm 3.1: Dolutegravir (DTG) 50 mg	First-Line TB Treatment	Women ≥ 20 weeks gestation receiving first-line TB treatment with at least two of the following TB treatment drugs: isoniazid (INH), rifampin (RIF), rifabutin (RFB), ethambutol (EMB), pyrazinamide (PZA), moxifloxacin (MFX), and receiving dolutegravir (DTG) 50 mg twice daily (b.i.d.) when combined with RIF or 50 mg q.d. if RIF is not part of the TB regimen, and their infants
Component 2: Arm 2.1: CAB LA	Cabotegravir (CAB)	Women ≥ 24 weeks gestation who received at least one dose of long-acting injectable formulation of cabotegravir (CAB LA) any dose during pregnancy, and their infants
Component 3: Arm 3.2: ATV/r or DRV/r	Atazanavir/ritonavir (ATV/r)	Women ≥ 20 weeks gestation receiving first-line TB treatment with at least two of the following TB treatment drugs: isoniazid (INH), rifampin (RIF), rifabutin (RFB), ethambutol (EMB), pyrazinamide (PZA), moxifloxacin (MFX), and receiving atazanavir/ritonavir (ATV/r) ≥ 300/100 mg q.d. or darunavir/ritonavir (DRV/r) ≥ 600/100 mg b.i.d., and their infants
Component 3: Arm 3.2: ATV/r or DRV/r	Darunavir/ritonavir (DRV/r)	Women ≥ 20 weeks gestation receiving first-line TB treatment with at least two of the following TB treatment drugs: isoniazid (INH), rifampin (RIF), rifabutin (RFB), ethambutol (EMB), pyrazinamide (PZA), moxifloxacin (MFX), and receiving atazanavir/ritonavir (ATV/r) ≥ 300/100 mg q.d. or darunavir/ritonavir (DRV/r) ≥ 600/100 mg b.i.d., and their infants
Component 3: Arm 3.3: Lopinavir/ritonavir (LPV/r) 800/200 mg	Lopinavir/ritonavir (LPV/r)	Women ≥ 20 weeks gestation receiving first-line TB treatment with at least two of the following TB treatment drugs: isoniazid (INH), rifampin (RIF), rifabutin (RFB), ethambutol (EMB), pyrazinamide (PZA), moxifloxacin (MFX), and receiving lopinavir/ritonavir (LPV/r) 800/200 mg b.i.d., and their infants
Component 3: Arm 3.2: ATV/r or DRV/r	First-Line TB Treatment	Women ≥ 20 weeks gestation receiving first-line TB treatment with at least two of the following TB treatment drugs: isoniazid (INH), rifampin (RIF), rifabutin (RFB), ethambutol (EMB), pyrazinamide (PZA), moxifloxacin (MFX), and receiving atazanavir/ritonavir (ATV/r) ≥ 300/100 mg q.d. or darunavir/ritonavir (DRV/r) ≥ 600/100 mg b.i.d., and their infants
Component 3: Arm 3.3: Lopinavir/ritonavir (LPV/r) 800/200 mg	First-Line TB Treatment	Women ≥ 20 weeks gestation receiving first-line TB treatment with at least two of the following TB treatment drugs: isoniazid (INH), rifampin (RIF), rifabutin (RFB), ethambutol (EMB), pyrazinamide (PZA), moxifloxacin (MFX), and receiving lopinavir/ritonavir (LPV/r) 800/200 mg b.i.d., and their infants
Component 4: Arm 4.1: Second-line TB treatment drugs	Second-Line TB Treatment	Women ≥ 20 weeks gestation receiving at least one of the following second-line TB treatment drugs, and their infants: * Levofloxacin (LFX) 750mg - 1000mg q.d. * Clofazimine (CFZ) 100mg q.d. * Linezolid (LZD) 300mg - 600mg q.d. * Bedaquiline (BDQ) 200mg three times per week (t.i.w.) * Delamanid (DLM) 100mg b.i.d. * Moxifloxacin (MFX) 400mg or 800mg q.d., and at least one other second-line TB treatment drug under study
Component 5: Arm 5.1: ATV/r	Atazanavir/ritonavir (ATV/r)	Women post-delivery receiving ATV/r, and their infants
Component 5: Arm 5.2: DRV/r	Darunavir/ritonavir (DRV/r)	Women post-delivery receiving DRV/r, and their infants
Component 5: Arm 5.3: LPV/r	Lopinavir/ritonavir (LPV/r)	Women post-delivery receiving LPV/r, and their infants
Component 3: Arm 3.1: Dolutegravir (DTG) 50 mg	Dolutegravir (DTG)	Women ≥ 20 weeks gestation receiving first-line TB treatment with at least two of the following TB treatment drugs: isoniazid (INH), rifampin (RIF), rifabutin (RFB), ethambutol (EMB), pyrazinamide (PZA), moxifloxacin (MFX), and receiving dolutegravir (DTG) 50 mg twice daily (b.i.d.) when combined with RIF or 50 mg q.d. if RIF is not part of the TB regimen, and their infants
Component 1: Arm 1.3: Tenofovir alafenamide (TAF) 10 mg q.d.	Cobicistat	Women ≥ 20 weeks gestation not receiving TB drugs and receiving tenofovir alafenamide (TAF) 10 mg q.d. boosted with cobicistat, and their infants
Component 1: Arm 1.5: TAF 25 mg q.d. with boosting	Ritonavir	Women ≥ 20 weeks gestation not receiving TB drugs and receiving TAF 25 mg q.d. boosted with cobicistat or ritonavir, and their infants

Primary Outcome Measures

Name	Time	Method
Cord blood/maternal plasma concentration ratio at delivery	Measured on Day 0	For Arm 2.1.: CAB only
Maternal breast milk/maternal plasma concentration ratio (if breast feeding)	Measured at Day 0	For Arm 2.1: CAB only
Infant plasma concentration at breast milk PK visit (if breast feeding)	Measured through Week 5	For Arm 2.1: CAB only
Infant washout half-life after delivery (if not breastfeeding)	Measured on Day 0	For Arm 2.1: CAB only
Number of women who meet area under the curve (AUC) target in second trimester (2T)	Measured at 2T (20 0/7 weeks to 26 6/7 weeks of pregnancy)	For Arms 1.1, and 1.2: BIC, DOR only
Number of women who meet area under the curve (AUC) in postpartum (PP)	Measured at PP (6 to 12 weeks after delivery)	For Arms 1.1, and 1.2: BIC, DOR only
Number of women who meet area under the curve (AUC) target in third trimester (3T)	Measured at 3T (30 0/7 weeks to 37 6/7 weeks of pregnancy)	For Arms 1.1, and 1.2: BIC, DOR only
Tenofovir-diphosphate (TFV-DP) concentrations in peripheral blood mononuclear cells (PBMCs) and dried blood spots (DBS) in third trimester (3T)	Measured at 3T (30 0/7 weeks to 37 6/7 weeks of pregnancy)	For Arms 1.3, 1.4, and 1.5 only
Tenofovir-diphosphate (TFV-DP) concentrations in peripheral blood mononuclear cells (PBMCs) and dried blood spots (DBS) postpartum (PP)	Measured at PP (6 to 12 weeks after delivery)	For Arms 1.3, 1.4, and 1.5 only
Area under the curve (AUC) at third trimester (3T)	Measured at 3T (30 0/7 weeks to 37 6/7 weeks of pregnancy)	For Arm 4.1 only
Area under the curve (AUC) in third trimester (3T)	Measured at 3T (30 0/7 weeks to 37 6/7 weeks of pregnancy)	For Arms 1.1, and 1.2: BIC, DOR only
Area under the curve (AUC) postpartum (PP)	Measured at PP (6 to 12 weeks after delivery)	For Arm 4.1 only
Tenofovir-diphosphate (TFV-DP) concentrations in peripheral blood mononuclear cells (PBMCs) and dried blood spots (DBS) in second trimester (2T)	Measured at 2T (20 0/7 weeks to 26 6/7 weeks of pregnancy)	For Arms 1.3, 1.4, and 1.5 only
Area under the curve (AUC) in second trimester (2T)	Measured at 2T (20 0/7 weeks to 26 6/7 weeks of pregnancy)	For Arms 1.1, and 1.2: BIC, DOR only
Area under the curve (AUC) at second trimester (2T)	Measured at 2T (20 0/7 weeks to 26 6/7 weeks of pregnancy)	For Arm 4.1 only
Maternal breast milk/maternal plasma concentration ratio	Measured through Week 24	For Arms 5.1, 5.2, and 5.3 only
Infant plasma concentration	Measured through Week 24	For Arms 5.1, 5.2, and 5.3 only

Secondary Outcome Measures

Name	Time	Method
Ratio of cord blood concentration to maternal blood concentration	Measured at Day 0	For Components 1, 3 and 4, all Arms
Efavirenz, lopinavir, atazanavir, darunavir, dolutegravir, and/or raltegravir: AUC at second trimester (2T), third trimester (3T), and postpartum (PP)	Measured at Measured at 2T (20 0/7 to 26 6/7 weeks of pregnancy), 3T (30 0/7 to 37 6/7 weeks or pregnancy, and PP (2-8 weeks after delivery)	For Component 4 only
Frequency of grade 3 or higher maternal adverse events	Measured through Week 24	Graded according to the Division of AIDS Table for Grading the Severity of Adult and Pediatric Adverse Events (DAIDS AE Grading Table), Corrected Version 2.1, dated July 2017
Frequency of grade 2 or higher infant adverse events	Measured through Week 24	Graded according to the Division of AIDS Table for Grading the Severity of Adult and Pediatric Adverse Events (DAIDS AE Grading Table), Corrected Version 2.1, dated July 2017
Frequency of maternal and infant serious adverse events	Measured through Week 24	Graded according to the Division of AIDS Table for Grading the Severity of Adult and Pediatric Adverse Events (DAIDS AE Grading Table), Corrected Version 2.1, dated July 2017
Infant washout half-life of drug after birth (if the infant is not breastfeeding, and if the half-life is estimable)	Measured through Day 9	For Components 1, 3 and 4, all Arms
Maternal breast milk/maternal plasma concentration ratio	Measured through Week 24	For Components 3 and 4, if assessed
Infant plasma concentration	Measured through Week 24	For Components 3 and 4, if assessed
Frequency of grade 3 or higher maternal adverse events assessed as related to the drug under study	Measured through Week 24	Graded according to the Division of AIDS Table for Grading the Severity of Adult and Pediatric Adverse Events (DAIDS AE Grading Table), Corrected Version 2.1, dated July 2017
Frequency of grade 2 or higher infant adverse events assessed as related to the drug under study	Measured through Week 24	Graded according to the Division of AIDS Table for Grading the Severity of Adult and Pediatric Adverse Events (DAIDS AE Grading Table), Corrected Version 2.1, dated July 2017
Pregnancy outcome: occurrence of live birth versus fetal loss/stillbirth.	Measured on Day 0
Gestational age at birth	Measured on Day 0
Birth weight	Measured on Day 0
Occurrence of congenital anomaly	Measured from Day 0 through Week 24 for Components 1, 3, 4 and 5; measured from Day 0 through Week 5 for Component 2
Occurrence of mitochondrial disorder	Measured from Day 0 through Week 24 for Components 1, 3, 4 and 5; measured from Day 0 through Week 5 for Component 2
Number of infants with confirmed positive HIV nucleic acid test result	Measured from Day 0 through Week 24	Determined according to diagnosis per local standard of care
Maternal HIV-1 RNA	Measured at 2T (20 0/7 to 26 6/7 weeks of pregnancy), 3T (30 0/7 to 37 6/7 weeks or pregnancy, and PP (2-12 weeks after delivery)

Trial Locations

Locations (33)

Usc La Nichd Crs; 🇺🇸 Los Angeles, California, United States

David Geffen School of Medicine at UCLA NICHD CRS; 🇺🇸 Los Angeles, California, United States

University of California, UC San Diego CRS- Mother-Child-Adolescent HIV Program; 🇺🇸 San Diego, California, United States

Univ. of Colorado Denver NICHD CRS; 🇺🇸 Aurora, Colorado, United States

South Florida CDTC Ft Lauderdale NICHD CRS; 🇺🇸 Fort Lauderdale, Florida, United States

University of Florida Jacksonville NICHD CRS; 🇺🇸 Jacksonville, Florida, United States

Pediatric Perinatal HIV NICHD CRS; 🇺🇸 Miami, Florida, United States

Emory University School of Medicine NICHD CRS; 🇺🇸 Atlanta, Georgia, United States

Rush University Cook County Hospital Chicago NICHD CRS; 🇺🇸 Chicago, Illinois, United States

Lurie Children's Hospital of Chicago (LCH) CRS (Site ID: 4001); 🇺🇸 Chicago, Illinois, United States

Johns Hopkins Univ. Baltimore NICHD CRS; 🇺🇸 Baltimore, Maryland, United States

Bronx-Lebanon Hospital Center NICHD CRS; 🇺🇸 Bronx, New York, United States

Jacobi Med. Ctr. Bronx NICHD CRS; 🇺🇸 Bronx, New York, United States

Molepolole CRS (Site ID: 12702); 🇧🇼 Molepolole, Kweneng District, Botswana

Gaborone CRS (Site ID: 12701); 🇧🇼 Gaborone, South-East District, Botswana

Univ. of Sao Paulo Brazil NICHD CRS (Site ID: 5074); 🇧🇷 Ribeirão Preto, São Paulo, Brazil

Hospital Federal dos Servidores do Estado NICHD CRS; 🇧🇷 Rio De Janeiro, Brazil

Hosp. Geral De Nova Igaucu Brazil NICHD CRS; 🇧🇷 Rio De Janeiro, Brazil

Byramjee Jeejeebhoy Medical College (BJMC) CRS; 🇮🇳 Pune, Maharashtra, India

Kenya Medical Research Institute / Walter Reed Project Clinical Research Center, Kericho CRS; 🇰🇪 Kericho, Kenya

Malawi CRS; 🇲🇼 Lilongwe, Malawi

IMPAACT/ Gamma Project/ UPR Pediatric HIV/AIDS Research CRS; 🇵🇷 San Juan, Puerto Rico

Wits RHI Shandukani Research; 🇿🇦 Johannesburg, Gauteng, South Africa

Desmond Tutu TB Centre - Stellenbosch University (DTTC-SU) CRS; 🇿🇦 Cape Town, South Africa

Sizwe CRS; 🇿🇦 Johannesburg, South Africa

Famcru Crs; 🇿🇦 Tygerberg Hills, South Africa

Kilimanjaro Christian Medical Centre (KCMC) (Site ID: 5118); 🇹🇿 Moshi, Tanzania

Siriraj Hospital, Mahidol University NICHD CRS; 🇹🇭 Bangkok, Bangkoknoi, Thailand

Chiangrai Prachanukroh Hospital NICHD CRS (Site ID: 5116); 🇹🇭 Chiang Rai, Thailand

Baylor-Uganda CRS; 🇺🇬 Kampala, Uganda

Seke North CRS (Site ID: 30306); 🇿🇼 Seke North, Chitungwiza, Zimbabwe

St Mary's CRS (Site ID: 30303); 🇿🇼 St. Mary's, Chitungwiza, Zimbabwe

Harare Family Care CRS (Site ID: 31890); 🇿🇼 Harare, Zimbabwe