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IMPROVE DDI sub-study: Dihydroartemisinin piperaquine (DP)-Dolutegravir-based ART drug-drug interactions in pregnancy

Impact of dolutegravir-based antiretroviral therapy on the pharmacokinetic profile of piperaquine administered as dihydroartemisinin-piperaquine for intermittent preventive treatment of malaria in pregnant women living with human immunodeficiency virus in Malawi: a fixed sequence cohort study

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
PACTR
Registry ID
PACTR201910580840196
Enrollment
22
Registered
2019-10-04
Start date
2019-10-14
Completion date
Unknown
Last updated
2026-01-27

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

Conditions

HIV/AIDS Malaria Pregnancy and Childbirth

Interventions

Sponsors

Liverpool School of Tropical Medicine
Lead Sponsor

Eligibility

Sex/Gender
Female

Inclusion criteria

Inclusion criteria: Living with HIV, on efavirenz-based ART regimen for at least 3 months or dolutegravir based ART for at least a month Adult pregnant women (=18 years of age) without any impaired decision-making capacity At or after 22 ± 6 weeks of gestation estimated by ultrasound scan Willing to adhere to scheduled and unscheduled study visit procedures and to attend follow up visits Resident of the study area Willing to deliver at the study hospital and have a maternal plasma, placental and cord blood samples collected at delivery Virologically suppressed (viral load 100 cells/mm3 Able to provide written consent

Exclusion criteria

Exclusion criteria: Haemoglobin value of <8.0 g/dL Multiple pregnancies (i.e. twin/triplets) Severe malformations or non-viable pregnancy observed by ultrasound Known allergy or contraindication to any of the study drugs On other medications that are known to have clinically significant interactions with efavirenz, dolutegravir or piperaquine such as rifampicin. Medical history of comorbidities that can influence the pharmacokinetic parameters of a study drug, such as clinically significant renal, liver or cardiac diseases

Design outcomes

Primary

MeasureTime frame
Geometric mean and geometric mean ratios (90% confidence interval) of piperaquine pharmacokinetic parameters when DP-IPTp is co administered with 50 mg dolutegravir based ART compared to 600 mg efavirenz-based ART

Secondary

MeasureTime frame
Geometric Mean Ratios (90% confidence interval) of maternal piperaquine concentrations in women living with HIV on 50 mg dolutegravir based ART compared to women not living with HIV (so not on ART) and not on azithromycin, matched for time since last DP dose and body weight and umbilical cord piperaquine concentration ratios in women living with HIV on 50 mg dolutegravir-based ART compared to women not living with HIV (so not on ART);Geometric mean and geometric mean ratios (90% confidence interval) of piperaquine pharmacokinetic parameters of exposure when dolutegravir-based ART is administered alone compared with co-administration with DP-IPTp;Mean maternal and umbilical cord plasma dolutegravir concentrations in women living with HIV on 50 mg dolutegravir-based ART

Countries

Malawi

Contacts

Public ContactKaren Barnes

Professor of Clinical Pharmacology

karen.barnes@uct.ac.za+27216504070

Outcome results

None listed

Source: PACTR (via WHO ICTRP) · Data processed: Feb 12, 2026