CI

At a glance

ClinicalIndex Comparison Record
N/ACompleted· 1,578 enrolled
Drug / intervention
atazanavir/cobicistat +56 moredrug
Likely dose
Multiple ARV regimens studied including dolutegravir 50 mg q.d., efavirenz 600 mg q.d., darunavir/cobicistat 800/150 mg q.d., atazanavir/cobicistat 300/150 mg q.d., elvitegravir/cobicistat 150/150 mg q.d., and TAF-based regimens; TB drugs include rifampicin 8-12 mg/kg (max 600 mg) q.d., isoniazid 4-6 mg/kg (max 300 mg) q.d., and othersAI-extracted
Key inclusion· 7
  • HIV-infected pregnant women ≥20 weeks gestation receiving specified ARV drugs (with or without TB treatment)
  • HIV-uninfected pregnant women ≥20 weeks gestation receiving ≥2 first-line TB drugs
  • HIV-infected or uninfected pregnant women ≥20 weeks gestation receiving ≥2 second-line TB drugs
  • HIV-infected postpartum women 2-12 weeks post-delivery on ARV drugs and starting postpartum contraceptives
Key exclusion· 3
  • Women on medicines that interfere with absorption, metabolism, or clearance of study drugs (rifampicin permitted for TB/ARV interaction evaluation)
  • Carrying multiple fetuses
  • Clinical or laboratory toxicity requiring change in medicine regimen during study period

Standardized by ClinicalIndex from the ClinicalTrials.gov record · verify against the source.

Search/NCT00042289
NCT00042289N/ACompleted

Pharmacokinetic Properties of Antiretroviral and Related Drugs During Pregnancy and Postpartum

National Institute of Allergy and Infectious Diseases (NIAID)·observational·Posted Aug 1, 2002·Updated Dec 2, 2025

In Brief

An observational study evaluating atazanavir/cobicistat, darunavir/ritonavir dosage #1, and 55 other interventions for HIV Infections. Completed, enrolled 1,578 participants across 62 sites in 8 countries.

Detailed Summary

IMPAACT P1026s is a Phase IV prospective clinical study to evaluate the pharmacokinetics (PKs) of antiretroviral (ARV) and tuberculosis (TB) medications in pregnant women and their infants. (Pharmacokinetics are the various interactions between a drug and the body.) This study also evaluated the PKs of certain ARVs in postpartum women before and after starting hormonal contraceptives. The PKs of these drugs were evaluated by measuring the amount of medicine present in blood and/or vaginal secretions.

Study Details

Study Typeobservational
Allocation--
Masking--
Primary Purpose--
ConditionsHIV Infections
CountriesArgentina, Botswana, Brazil, Puerto Rico, South Africa, Tanzania, Thailand, United States

Timeline

N/ACompletedFinished
20022003200420052006200720082009201020112012201320142015201620172018201920202021202220232024202520262027
First PostedAug 1, 2002
Enrollment StartJun 9, 2003
Primary CompletionSep 30, 2020
TodayJul 2, 2026
Enrollment to primary: 17.3 yearsPosted 23.9 years ago

Interventions

atazanavir/cobicistatdrug

atazanavir/cobicistat 300/150 mg q.d.

darunavir/ritonavir dosage #1drug

darunavir/ritonavir twice daily 600/100 mg b.i.d.

darunavir/ritonavir dosage #2drug

darunavir/ritonavir twice daily 800/100 mg b.i.d.

darunavir/ritonavir dosage #3drug

darunavir/ritonavir twice daily 900/100 mg b.i.d.

elvitegravir/cobicistatdrug

elvitegravir/cobicistat 150/150 mg q.d.

dolutegravirdrug

dolutegravir 50 mg q.d.

tenofovir alafenamide fumarate (TAF)drug

TAF 25 mg q.d. without cobicistat or ritonavir boosting

TAF w/cobicistatdrug

TAF 10 mg q.d. with cobicistat

TAF w/cobicistat or ritonavirdrug

TAF 25 mg q.d. with cobicistat or ritonavir boosting

efavirenzdrug

efavirenz 600 mg q.d.

darunavir/cobicistatdrug

darunavir/cobicistat 800/150 mg q.d.

lopinavir/ritonavir dosage #1drug

lopinavir/ritonavir 800/200mg b.i.d.

atazanavir/ritonavir/tenofovir dosage #1drug

atazanavir/ritonavir/tenofovir 300/100/300mg q.d.

rifampicindrug

rifampicin 8-12 mg/kg (max 600 mg) q.d.; 8-12 mg/kg (max 900 mg) t.i.w.

ethambutoldrug

ethambutol 15-20 mg/kg q.d., 25-35 mg/kg t.i.w.

isoniaziddrug

isoniazid 4-6 mg/kg (max 300 mg) q.d.; 8-12 mg/kg (max 900 mg) t.i.w.

pyrazinamidedrug

pyrazinamide 20-30mg/kg q.d.; 30-40mg/kg t.i.w.

kanamycindrug

kanamycin (2nd line TB drug)

amikacindrug

amikacin (2nd line TB drug)

capreomycindrug

capreomycin (2nd line TB drug)

moxifloxacindrug

moxifloxacin (2nd line TB drug)

levoflaxacindrug

levofloxacin (2nd line TB drug)

ofloxacindrug

ofloxacin (2nd line TB drug)

ethionamide/prothionamidedrug

ethionamide/prothionamide (2nd line TB drug)

terizidone/cycloserinedrug

terizidone/cycloserine (2nd line TB drug)

para-aminosalicylic acid (PAS)drug

para-aminosalicylic acid (PAS) (2nd line TB drug)

high dose INHdrug

high dose INH (2nd line TB drug)

bedaquilinedrug

bedaquiline (2nd line TB drug)

clofazaminedrug

clofazamine (2nd TB drug)

delamaniddrug

delamanid (2nd line TB drug)

linezoliddrug

linezolid (2nd line TB drug)

pretomaniddrug

pretomanid (2nd line TB drug)

ethinyl estradioldrug

oral contraceptives formulated with 30-35 μg ethinyl estradiol

etonogestrel implantdrug

etonogestrel implant contraceptive

nevirapinedrug

nevirapine 200 mg twice a day

amprenavirdrug

amprenavir 1200mg twice a day

abacavirdrug

abacavir 300mg twice a day

lopinavir/ritonavir dosage #2drug

lopinavir/ritonavir (Kaletra) 400/100mg twice a day

indinavir/ritonavir dosage #1drug

indinavir/ritonavir 800/100mg twice a day

fosamprenavir/ritonavirdrug

fosamprenavir/ritonavir 700/100 mg twice a day

lopinavir/ritonavir dosage #3drug

lopinavir/ritonavir (Kaletra) 533/133 mg twice a day

atazanavir/ritonavir dosage #1drug

atazanavir/ritonavir 300/100 mg once a day

didanosine delayed release (Videx® EC)drug

didanosine delayed release (Videx® EC) 400 mg once a day if weight \> 60 kg; 250 mg once a day if weight \< 60 kg

emtricitabinedrug

emtricitabine 200 mg once a day

tenofovirdrug

tenofovir 300 mg once a day

nelfinavir dosage #1drug

nelfinavir \[625 mg tablets\] 1250 mg twice a day

tipranavir/ritonavirdrug

tipranavir/ritonavir 500/200 mg twice a day

lopinavir/ritonavir dosage #4drug

lopinavir/ritonavir (Kaletra) tablets 600/150 mg \[3 tablets\] twice a day

raltegravirdrug

raltegravir 400 mg twice a day

etravirinedrug

etravirine 200 mg twice a day

maravirocdrug

maraviroc 150 mg or 300 mg twice a day

atazanavir/ritonavir dosage #2drug

atazanavir/ritonavir 400/100mg once a day

tenofovir/atazanavir/ritonavir dosage #2drug

tenofovir/atazanavir/ritonavir 300/400/100 mg once a day

nelfinavir dosage #2drug

nelfinavir \[625 mg tablets\] 1875 mg twice a day

indinavir/ritonavir dosage #2drug

indinavir/ritonavir 400/100 mg twice a day

rilpivirinedrug

rilpivirine (25 mg q.d.)

darunavir/ritonavir dosage #4drug

darunavir/ritonavir once daily 800/100 mg q.d.