Single Dose Pharmacokinetics of Doravirine in HIV-infected Pregnant Women

HIV Infections Clinical Trial

Official title:

Single Dose Pharmacokinetics of Doravirine in HIV-infected Pregnant Women

Clinical Trial Details — Status: Recruiting

Administrative data

• NCT number: NCT04900974
• Other study ID #: 20-0052
• Status: Recruiting
• Phase: Phase 1
• Start date: June 9, 2022
• Est. completion date: September 2024

Study information

• Verified date: February 2024
• Source: University of North Carolina, Chapel Hill
• Contact: Amanda Poliseno, BS
• Phone: 919-962-5344
• Email: amanda_poliseno[@]unc.edu
• Is FDA regulated: No
• Study type: Interventional

Clinical Trial Summary

The purpose of this research study is to evaluate the effect of body changes in pregnancy on doravirine concentrations, to determine what dose of doravirine should be used. Study participants will remain on their normal antiretroviral medications (ARVs) while participating in this study as prescribed by their regular clinic provider. Study participants will come to the research clinic for three sampling visits throughout their time as a participant. Study participants will only take one dose of doravirine during each sampling visit, which will occur during the 2nd and 3rd trimesters, as well as after their baby is delivered. This study was designed intentionally to not give a dose of doravirine in the first trimester when there is the greatest chance for all drugs to potentially cause injury to the baby. Study participants that choose to participate in this study may be enrolled for up to 10 months depending on the length of their pregnancy and how the visits are scheduled.

Description:

Antiretroviral (ARV) medications are used to treat infection with human immunodeficiency virus (HIV). During pregnancy, ARV therapy keeps women healthy and decreases the spread of HIV to their babies (<1-2%).

Many changes occur in the body during pregnancy, which can alter the concentrations of drug in the body. Doravirine (DOR) is a Food and Drug Administration (FDA) approved ARV, but the extent to which the drug concentrations of doravirine change during pregnancy is unknown. Because these changes are unknown, DOR has not been approved by the FDA for use among pregnant women; however, the FDA has given the researchers permission to use it in this study Pregnant women are often excluded from clinical trials, so it can take several years after a drug gets approved before contemporary ARV is available to them.

The purpose of this research study is to evaluate the effect of body changes in pregnancy on doravirine concentrations, to determine what dose of doravirine should be used. Study participants will remain on their normal antiretroviral medications (ARVs) while participating in this study as prescribed by their regular clinic provider. Study participants will come to the research clinic for three sampling visits throughout their time as a participant. Study participants will only take one dose of doravirine during each sampling visit, which will occur during the 2nd and 3rd trimesters, as well as after their baby is delivered. This study was designed intentionally to not give a dose of doravirine in the first trimester when there is the greatest chance for all drugs to potentially cause injury to the baby. Study participants that choose to participate in this study may be enrolled for up to 10 months depending on the length of their pregnancy and how the visits are scheduled.

Recruitment information / eligibility

• Status: Recruiting
• Enrollment: 10
• Est. completion date: September 2024
• Est. primary completion date: June 2024
• Accepts healthy volunteers: No
• Gender: Female
• Age group: 18 Years and older

Eligibility

Inclusion Criteria:

• Pregnant women living with Human Immunodeficiency Virus (HIV) =18 years of age

• Willing and able to comply with scheduled visits, treatment plan, laboratory tests, and other trial procedures.

• Evidence of a personally signed and dated informed consent document indicating that the participant has been informed of all pertinent aspects of the trial.

• On stable combination Antiretroviral Therapy (cART) for at least 30 days prior to enrollment

• Plasma HIV RNA < 50 copies/mL within 90 days prior to enrollment

• Ability and willingness of participant to not change their cART regimen to avoid any confounding of pharmacokinetic (PK) parameters.

o Note: Women who change cART regimens will be replaced.

• Aspartate aminotransferase and alanine aminotransferase < 3x Upper Limit of Normal (ULN)

• Hemoglobin lower than Division of AIDs (Acquired Immunodeficiency Syndrome) (DAIDs) Grade 2 (9.0 g/dL)

Exclusion Criteria:

• Women with multiple gestation, active opportunistic infections, present obstetrical complications that would deem them unsuitable for study participation, or evidence of fetal anomalies in present pregnancy will be excluded.

• Women with severe renal impairment, end stage renal disease, undergoing dialysis, or severe hepatic impairment (Child-Pugh C)

• Women with a significant illness/condition at the time of enrollment that, in the judgment of the investigator, would interfere with, or serve as a contraindication to, protocol adherence or assessment of safety.

• Women with pregnancies that have become complicated are excluded for safety reasons.

• Active hepatitis C (HCV) infection as defined by anti-hepatitis C virus serology (as determined by multi-antigen EIA) and detectable HCV RNA.

• Clinically significant labs greater than Grade 2 on the NIH Division of AIDs Table for Grading the Severity of Adult and Pediatric Adverse events

• Receiving CYP3A inducers including carbamazepine, phenobarbital, phenytoin, enzalutamide, rifampin, rifapentine, mitotane, or St. John's wort or other drugs, including antiretrovirals, that influence drug concentration or alter pharmacokinetic profiles (atazanavir, maraviroc, darunavir, norvir, efavirenz, tipranavir)

• Receiving moderate to strong cytochrome p450 3A (CYP3A) inhibitors including clarithromycin, boceprevir, cobicistat, danoprevir and ritonavir, elvitegravir and ritonavir, indinavir and ritonavir, itraconazole, ketoconazole, lopinavir and ritonavir, paritaprevir and ritonavir, posaconazole, ritonavir, saquinavir and ritonavir, telaprevir, tipranavir and ritonavir, grapefruit juice, idelalisib, nefazodone, and nelfinavir.

Related Conditions & MeSH terms

• HIV Infections
• Pregnancy Related

Intervention

Drug:
• Doravirine
100mg

Locations

Country	Name	City	State
United States	University of North Carolina at Chapel Hill	Chapel Hill	North Carolina

Sponsors (2)

Lead Sponsor	Collaborator
University of North Carolina, Chapel Hill	Merck Sharp & Dohme LLC

Country where clinical trial is conducted

United States, 

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	Change in total and protein-unbound Cmax of doravirine in blood plasma during pregnancy.	To describe single-dose total and protein-unbound Cmax of doravirine in the blood plasma of women living with HIV during the 2nd trimester, 3rd trimester, and post-partum	Pre-dose (within 1 hour prior to dosing) and at 0.5, 1, 2, 4, 6, 8, 10, 12, 24, 48, 72 and hours post-dose in each period.
Primary	Change in total and protein-unbound Tmax of doravirine in blood plasma during pregnancy.	To describe single-dose total and protein-unbound Tmax of doravirine in the blood plasma of women living with HIV during the 2nd trimester, 3rd trimester, and post-partum	Pre-dose (within 1 hour prior to dosing) and at 0.5, 1, 2, 4, 6, 8, 10, 12, 24, 48, 72 and hours post-dose in each period.
Primary	Change in total and protein-unbound C12h of doravirine in blood plasma during pregnancy.	To describe single-dose total and protein-unbound C12h of doravirine in the blood plasma of women living with HIV during the 2nd trimester, 3rd trimester, and post-partum	Pre-dose (within 1 hour prior to dosing) and at 0.5, 1, 2, 4, 6, 8, 10, 12, 24, 48, 72 and hours post-dose in each period.
Primary	Change in total and protein-unbound C24h of doravirine in blood plasma during pregnancy.	To describe single-dose total and protein-unbound C24h of doravirine in the blood plasma of women living with HIV during the 2nd trimester, 3rd trimester, and post-partum	Pre-dose (within 1 hour prior to dosing) and at 0.5, 1, 2, 4, 6, 8, 10, 12, 24, 48, 72 and hours post-dose in each period.
Primary	Change in total and protein-unbound Area Under the Curve (AUC) of doravirine in blood plasma during pregnancy.	To describe single-dose total and protein-unbound AUC of doravirine in the blood plasma of women living with HIV during the 2nd trimester, 3rd trimester, and post-partum	Pre-dose (within 1 hour prior to dosing) and at 0.5, 1, 2, 4, 6, 8, 10, 12, 24, 48, 72 and hours post-dose in each period.
Secondary	Number of Adverse Events reported after single doses of doravirine in pregnant participants.	To evaluate the number of Adverse Events reported after single doses of doravirine in pregnant participants living with HIV	From enrollment visit to follow-up visit, an average of 10 months.