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Study of the Pharmacokinetics and Safety of Glecaprevir/Pibrentasvir Initiated in Pregnancy in Women With Hepatitis C With and Without HIV

Phase I/II Study of the Pharmacokinetics and Safety of Glecaprevir/Pibrentasvir Initiated in Pregnancy in Women With Hepatitis C With and Without HIV

Status
Not yet recruiting
Phases
Phase 1Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07040319
Enrollment
30
Registered
2025-06-27
Start date
2026-02-28
Completion date
2027-07-30
Last updated
2026-01-29

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

Conditions

Hepatitis C

Keywords

HIV, Hepatitis C, Pregnancy, Glecaprevir/Pibrentasvir

Brief summary

This is a Phase I/II, multi-site, open-label, single arm study to describe the pharmacokinetics (PK) and safety of glecaprevir/pibrentasvir (GLE/PIB) initiated during pregnancy in women with hepatitis C virus (HCV) infection (acute or chronic) with or without HIV and to evaluate safety for their infants through 10 weeks postpartum.

Interventions

100 mg glecaprevir and 40 mg pibrentasvir for a total daily dose of glecaprevir 300 mg/pibrentasvir 120 mg

Sponsors

National Institute of Allergy and Infectious Diseases (NIAID)
Lead SponsorNIH
Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)
CollaboratorNIH
National Institute of Mental Health (NIMH)
CollaboratorNIH
AbbVie
CollaboratorINDUSTRY

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
FEMALE
Age
16 Years to 45 Years
Healthy volunteers
No

Inclusion criteria

* Of legal age or circumstance to provide independent informed consent as determined by site standard operating procedures (SOPs) and consistent with institutional review board/ethics committee (IRB/EC) policies and procedures * Willing and able to provide written informed consent for their own and their infant's study participation * At entry, 16-45 years of age (inclusive) * At entry, gestational age of 14-32 weeks, defined as greater than 13 weeks plus six days and less than or equal to 32 completed weeks gestation, as determined by the site investigator based on best obstetric estimate * At screening and at study entry, no evidence of multiple gestation, fetal anomalies, or intrauterine fetal growth restriction, as determined by the site investigator based on ultrasound * At screening, detectable HCV RNA test result based on testing of a specimen collected within 30 days prior to entry * At screening, negative test results for hepatitis B surface antigen based on testing of a specimen collected within 30 days prior to entry * At screening (i.e., from specimens collected within 30 days prior to entry), has normal, grade 1, grade 2, or grade 3 results for the following * Aspartate aminotransferase (AST) (\<10.0 x ULN) * Alanine aminotransferase (ALT) (\<10.0 x ULN) * At screening (i.e., from specimens collected within 30 days prior to entry), has normal, grade 1, or grade 2 results for the following * Hemoglobin (≥8.5 g/dL) * Creatinine (≤1.8 x ULN) * At screening (i.e., from specimens collected within 30 days prior to entry), has normal or grade 1 results for the following * International normalized ratio (INR) (\<1.5 x ULN) * Platelet count (≥100,000 cells/mm3) * Total bilirubin (\<1.6 x ULN) * HIV status determined based on testing meeting the requirements specified in protocol * For pregnant participants living with HIV: has a suppressed HIV viral load (HIV-1 RNA below the limit of quantification of the assay) on an ARV regimen for at least 30 consecutive days prior to entry that does not include efavirenz, etravirine, cobicistat, or any protease inhibitor (e.g., atazanavir, darunavir, lopinavir, ritonavir), as determined by the site investigator based on available medical records * At entry, expects to remain in the geographic area of the study site during pregnancy and for 10 weeks postpartum (or for 20 weeks post-entry, depending on gestational age at entry), as determined by the site investigator based on pregnant participant report

Exclusion criteria

* Any previous treatment for hepatitis C, including HCV DAAs or interferon-based treatment * High risk of preterm delivery, defined as either of the following: * History of spontaneous preterm delivery at less than 34 weeks, as determined by the site investigator based on pregnant participant report and available medical records, or * Shortened cervix less than 20 mm if noted on ultrasound during the current pregnancy, as determined by the site investigator based on available medical records * Receipt of any prohibited medication, within 14 days prior to entry, as determined by the site investigator based on pregnant participant report and available medical records * Any of the following liver-related conditions: * Clinical diagnosis of acute hepatitis not otherwise attributable to hepatitis C with AST or ALT ≥2.5 x ULN * Evidence of decompensated cirrhosis including history of or present variceal hemorrhage, ascites, spontaneous bacterial peritonitis, hepatic encephalopathy, hepatocellular carcinoma, hepatorenal syndrome, or hepatopulmonary syndrome * Has any other documented or suspected clinically significant medical condition or any other condition that, in the opinion of the site investigator, would make participation in the study unsafe, complicate interpretation of study outcome data, or otherwise interfere with achieving study objectives

Design outcomes

Primary

MeasureTime frameDescription
Geometric mean AUC0-24hAt weeks 3 & 6Area under the curve from start of dose to 24 hours post dose
Geometric mean CmaxAt weeks 3 & 6Peak concentration from start of dose to 24 hours post dose
Geometric mean C24hAt weeks 3 & 6Concentration at 24 hours post dose
Percentage of pregnant/ postpartum participants who experience a grade 3 or higher adverse event assessed as related to study drugInitiation of treatment to a) completion of treatment and b) latter of 10 weeks post-partum or 20 weeks post treatment initiation
Percentage of pregnant participants who experience a serious adverse event assessed as related to study drugInitiation of treatment to a) completion of treatment and b) latter of 10 weeks post-partum or 20 weeks post treatment initiation

Secondary

MeasureTime frameDescription
Percentage of pregnant/postpartum participants with sustained virologic response (SVR12)12 weeks after planned treatment completiondefined as unquantifiable hepatitis C RNA (less than the lower limit of quantification \[\<LLOQ\])
Percentage of pregnant participants with spontaneous abortions or miscarriageAt birth/delivery(\<20 weeks gestation)
Percentage of pregnant participants with stillbirthsAt birth/delivery(≥20 weeks gestation)
Percentage of infants small for gestational ageAt birth/delivery\<10th percentile
Percentage of infants with low birth weightAt birth/delivery\<2500 g
Percentage of pre-term birthsAt birth/delivery\<37 weeks gestation
Percentage of pregnancies with occurrence of any of the following adverse pregnancy eventsAt birth/deliveryspontaneous abortion or miscarriage, stillbirth, small gestational age, low birth weight, or preterm birth
Percentage of infants with a congenital abnormalityAt birth/delivery
Percentage of infants with a grade 5 adverse eventFrom birth through 10 weeks of age
Percentage of infants with Grade 3 or higher adverse event assessed as related to study drugFrom birth through 10 weeks of age
Percentage of infants with a serious adverse events assessed as related to study drugFrom birth through 10 weeks of age
Percentage of occurrence of any of the following in infants: grade 5 adverse event within 28 days of birth, grade 3 or higher adverse event assessed as related to study drug, or severe adverse event assessed as related to study drugFrom birth through 10 weeks of age
Median weight of infantsAt birth and 10 weeks of age
Median length of infantsAt birth and 10 weeks of age
Median head circumference of infantsAt birth and 10 weeks of age
Percentage of infants with quantifiable hepatitis C RNAAt 10 or more weeks of age

Countries

United States

Contacts

CONTACTIMPAACT ClinicalTrials.gov Coordinator
impaact.ctgov@fstrf.org
CONTACTKatie McCarthy
kmccarthy@fhi360.org919-321-3326

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026