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CompletedNCT06263582Updated Aug 19, 2025Results posted

Pharmacokinetics of Intravaginal, Self-administered Artesunate Vaginal Pessaries Among Women in Kenya

A Phase 1 interventional study of Artesunate pessary and blood draws for pharmacokinetics of the study drug in Cervix Cancer, Cervix Intraepithelial Neoplasia Grade 3 and Cervix; Intraepithelial Neoplasia, Grade I, sponsored by UNC Lineberger Comprehensive Cancer Center. Completed at 1 site in Kenya. Open to female participants aged 18 Years to 65 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2025-08-19.

Sponsored by UNC Lineberger Comprehensive Cancer Center · Phase 1, Interventional, and Treatment

Phase
Phase 1
Study type
Interventional
Enrollment
12
Allocation
Not applicable
Ages
18 Years to 65 Years
Sex
Female
01

Study summary

This study investigates the pharmacokinetics of Artesunate (AS) and dihydroartemisinin (DHA), the active metabolite of Artesunate, following intravaginal use at the dosing and frequency being studied for cervical precancer treatment. A secondary objective is to investigate safety among study participants.

Read the detailed description

Due to lack of access to primary and secondary prevention, women living in low-and middle-income countries bear a disproportionate burden of cervical cancer, accounting for 90% of new cases and 85% of deaths globally. Cervical cancer can be prevented through vaccination against Human papillomavirus (HPV), whose infection is required to develop cervical cancer. Among unvaccinated women, screening for HPV or cervical precancer allows identification of precancerous lesions - primarily cervical intraepithelial neoplasia grade 2 or 3 (CIN2/3), that can be treated and cured, to prevent progression to cancer. Most CIN2/3 lesions that are left untreated will progress to invasive cervical cancer. Current treatments for CIN2/3 in both high- and low-resource countries (LMICs) require trained health care providers, who are often out of reach for many women, particularly in rural areas in LMICs. Lack of access to precancer treatment following screening in LMICs in part accounts for the high burden of incident cervical cancer. Preclinical data have demonstrated pro-apoptotic effects of Artesunate (AS), a commonly available drug with an excellent safety profile in oral, rectal and intravenous routes primarily used to treat malaria in LMICs. This led to a recent Phase I study in the United States that demonstrated that self-administered vaginal artesunate inserts (pessaries) are safe, well-tolerated, and demonstrate efficacy for treatment of CIN2/3. Based on the mechanism of action, the clinical safety profile, and widespread availability as a generic drug on the World Health Organization (WHO) List of Essential Medications, vaginal artesunate inserts (pessaries), if backed by data from randomized trials, may offer patient-controlled and access cervical precancer treatment method for women in LMICs who face the greatest burden of cervical cancer and have difficulty accessing skilled providers for precancer treatment. However, given that artesunate is a well-known drug used in malaria treatment, it is critical to ensure that vaginal application of the drug will not promote resistance for use in malaria treatment.

02

Conditions studied

  • Cervix Cancer
  • Cervix Intraepithelial Neoplasia Grade 3
  • Cervix; Intraepithelial Neoplasia, Grade I
  • Cervix; Intraepithelial Neoplasia, Grade II

Keywords

  • Artesunate
  • dihydroartemisinin
  • pharmacokinetics
03

In context

Uterine Cervical Neoplasms

1,881 studies on the registry are indexed under Uterine Cervical Neoplasms; 567 are open to participants now.

This study's enrollment of 12 is below the median of 100 across 1,377 interventional studies indexed under Uterine Cervical Neoplasms.

Browse Uterine Cervical Neoplasms studies →

Lead sponsor

UNC Lineberger Comprehensive Cancer Center is the lead sponsor of 414 studies on the registry; 96 are open to participants now.

Of its 32 completed or terminated interventional studies of FDA-regulated products, 25 (78%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 65 Years
Sexes eligible
Female
Accepts healthy volunteers
Yes

Inclusion criteria

  1. Age 18 years or older
  2. Negative pregnancy test at screening
  3. Willingness to use contraception (hormonal or barrier) during the 5-day study dosing phase if of childbearing age (less than 50 years of age)
  4. Ability and willingness to provide informed consent.

Exclusion criteria

Exclusion Criteria

  1. Current pregnancy or breastfeeding status
  2. History of total hysterectomy
  3. Known allergy to Artesunate.
  4. Have a medical comorbidity that in the opinion of the investigator would interfere with study participation.
  5. Currently receiving artemisinin-based agents for malaria treatment or completed artemisinin-based treatment within the previous 3 days.
05

Study design

Phase
Phase 1
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
12 participants (actual)

Study arms

  • Experimental
    Artesunate vaginal inserts/ pessaries

    Artesunate vaginal inserts/pessaries are used as a treatment for cervical precancerous lesions.

    Drug: Artesunate pessary · Diagnostic Test: blood draws for pharmacokinetics of the study drug

Interventions

  • DrugArtesunate pessary

    Subjects will use the study pessaries, placed in the vagina every day for 5 consecutive days.

  • Diagnostic testblood draws for pharmacokinetics of the study drug

    On day 5, all participants will have their blood draws before they use the pessary, and at 15 min, 30 mins, 1 hour, 2 hours, 4 hours, 6 hours, and 8 hours after inserting the pessary. Blood samples will be tested for the pharmacokinetics of the study drug.

06

What researchers measure

Primary outcomes

  1. To Determine the Area Under the Plasma Concentration Versus Time Curve (AUC) of Dihydroartemisinin

    To determine the area under the plasma concentration versus time curve (AUC) of dihydroartemisinin (DHA) following five consecutive days of self-administration of 200mg Artesunate vaginal inserts (pessaries). Mean DHA AUC will be submitted.

    Time frame: Day 5

Secondary outcomes

  1. To Determine the Area Under the Plasma Concentration Versus Time Curve (AUC) of Artesunate (AS)

    To determine the area under the plasma concentration versus time curve (AUC) of Artesunate (AS) following five consecutive days of self-administration of 200mg Artesunate vaginal inserts (pessaries). Mean artesunate AUC will be submitted.

    Time frame: Day 5

  2. To Determine the Maximum Concentration of Artesunate (AS)

    To determine the maximum concentration of Artesunate (AS) (Cmax) following five consecutive days of self-administration of 200mg Artesunate vaginal inserts (pessaries) among healthy women. Mean artesunate Cmax (ng/ml) value will be submitted.

    Time frame: Day 5

  3. To Determine the Maximum Concentration of Dihydroartemisinin (DHA) (Cmax)

    To determine the maximum concentration of dihydroartemisinin (DHA) (Cmax) following five consecutive days of self-administration of 200mg Artesunate vaginal inserts (pessaries) among healthy women. Mean DHA Cmax (ng/ml) value will be submitted.

    Time frame: Day 5

  4. To Determine the Time to Maximum Concentration (Tmax) of Artesunate (AS) Following Five Consecutive Days

    To determine the time to maximum concentration (Tmax) of Artesunate (AS) following five consecutive days of self-administration of 200mg Artesunate vaginal inserts (pessaries) among healthy women. Mean DHA Tmax (hours) value will be submitted.

    Time frame: Day 5

  5. To Determine the Time to Maximum Concentration (Tmax) of Dihydroartemisinin (DHA

    To determine the time to maximum concentration (Tmax) of dihydroartemisinin (DHA) following five consecutive days of self-administration of 200mg Artesunate vaginal inserts (pessaries) among healthy women. Mean (Tmax) will be submitted.

    Time frame: Day 5

  6. To Determine the Half-life (t1/2) of Artesunate (AS)

    To determine the half-life (t1/2) of Artesunate (AS) following five consecutive days of self-administration of 200mg Artesunate vaginal inserts (pessaries) among healthy women. Mean Artesunate half-life (t1/2) (mins) will be submitted.

    Time frame: Day 5

  7. To Determine the Half-life (t1/2) of Dihydroartemisinin (DHA)

    To determine the half-life (t1/2) of dihydroartemisinin (DHA) following five consecutive days of self-administration of 200mg Artesunate vaginal inserts (pessaries) among healthy women. Mean DHA half-life (mins) will be submitted.

    Time frame: Day 5

  8. To Determine the Apparent Clearance (CL/F) of Artesunate (AS)

    To determine the apparent clearance (CL/F) of Artesunate (AS) following five consecutive days of self-administration of 200mg Artesunate vaginal inserts (pessaries) among healthy women. Mean Artesunate clearance (L/Kg/hr) will be submitted.

    Time frame: Day 5

  9. To Determine the Apparent Clearance (CL/F) of Dihydroartemisinin (DHA)

    To determine the apparent clearance (CL/F) of dihydroartemisinin (DHA) following five consecutive days of self-administration of 200mg Artesunate vaginal inserts (pessaries) among healthy women. Mean DHA clearance (L/Kg/hr) will be submitted.

    Time frame: Day 5

  10. To Determine the Volume of Distribution (V/F) of Artesunate (AS)

    To determine the volume of distribution (V/F) of Artesunate (AS) following five consecutive days of self-administration of 200mg Artesunate vaginal inserts (pessaries) among healthy women. Mean Artesunate volume of distribution (L/Kg) will be submitted.

    Time frame: Day 5

  11. To Determine the Volume of Distribution (V/F) of Dihydroartemisinin (DHA)

    To determine the volume of distribution (V/F) of dihydroartemisinin (DHA) following five consecutive days of self-administration of 200mg Artesunate vaginal inserts (pessaries) among healthy women. Mean dihydroartemisinin (DHA) of distribution (V/F) will be submitted.

    Time frame: Day 5

  12. Type, Frequency, Severity, and Duration of Adverse Events

    To investigate the safety of a 5-day course of self-administered intravaginal artesunate vaginal inserts (pessary) in women. Type, frequency, severity, and duration of reported and observed adverse events (AEs) using the U.S National Cancer Institute Common Terminology Criteria for Adverse Events, v5.0 (CTCAE 5.0) and the Division of AIDS Female Genital Adverse Events Grading Table will be submitted.

    Time frame: Up to day 10 days

07

Results

Posted Aug 19, 2025
Limitations and caveats
Pharmacokinetic (PK) sampling from 0 to 8 hours after intravaginal administration of artesunate was not sufficient to capture the elimination phase of the drug and its metabolite. As a result, key plasma pharmacokinetic parameters including apparent clearance (CL/F), apparent volume of distribution (Vd/F), elimination half-life (t½), and area under the concentration-time curve from time zero to infinity (AUC₀-∞) could not be estimated.

Participant flow

Participants were recruited in one center in Kenya.

Participant flow — Overall Study
MilestoneArtesunate Vaginal Inserts/ Pessaries
Started12
Completed12
Not completed0

Outcome measures

PrimaryTo Determine the Area Under the Plasma Concentration Versus Time Curve (AUC) of Dihydroartemisinin

To determine the area under the plasma concentration versus time curve (AUC) of dihydroartemisinin (DHA) following five consecutive days of self-administration of 200mg Artesunate vaginal inserts (pessaries). Mean DHA AUC will be submitted.

Time frame:
Day 5
Reported as:
Mean · ng/mL-h
To Determine the Area Under the Plasma Concentration Versus Time Curve (AUC) of Dihydroartemisinin
ng/mL-hArtesunate Vaginal Inserts/ Pessaries
To Determine the Area Under the Plasma Concentration Versus Time Curve (AUC) of Dihydroartemisinin464.90 ± 228.70
SecondaryTo Determine the Area Under the Plasma Concentration Versus Time Curve (AUC) of Artesunate (AS)

To determine the area under the plasma concentration versus time curve (AUC) of Artesunate (AS) following five consecutive days of self-administration of 200mg Artesunate vaginal inserts (pessaries). Mean artesunate AUC will be submitted.

Time frame:
Day 5
Reported as:
Mean · ng/mL-h
To Determine the Area Under the Plasma Concentration Versus Time Curve (AUC) of Artesunate (AS)
ng/mL-hArtesunate Vaginal Inserts/ Pessaries
To Determine the Area Under the Plasma Concentration Versus Time Curve (AUC) of Artesunate (AS)504.21 ± 281.11
SecondaryTo Determine the Maximum Concentration of Artesunate (AS)

To determine the maximum concentration of Artesunate (AS) (Cmax) following five consecutive days of self-administration of 200mg Artesunate vaginal inserts (pessaries) among healthy women. Mean artesunate Cmax (ng/ml) value will be submitted.

Time frame:
Day 5
Reported as:
Mean · ng/mL
To Determine the Maximum Concentration of Artesunate (AS)
ng/mLArtesunate Vaginal Inserts/ Pessaries
To Determine the Maximum Concentration of Artesunate (AS)83.74 ± 42.73
SecondaryTo Determine the Maximum Concentration of Dihydroartemisinin (DHA) (Cmax)

To determine the maximum concentration of dihydroartemisinin (DHA) (Cmax) following five consecutive days of self-administration of 200mg Artesunate vaginal inserts (pessaries) among healthy women. Mean DHA Cmax (ng/ml) value will be submitted.

Time frame:
Day 5
Reported as:
Mean · ng/mL
To Determine the Maximum Concentration of Dihydroartemisinin (DHA) (Cmax)
ng/mLArtesunate Vaginal Inserts/ Pessaries
To Determine the Maximum Concentration of Dihydroartemisinin (DHA) (Cmax)97.00 ± 53.12
SecondaryTo Determine the Time to Maximum Concentration (Tmax) of Artesunate (AS) Following Five Consecutive Days

To determine the time to maximum concentration (Tmax) of Artesunate (AS) following five consecutive days of self-administration of 200mg Artesunate vaginal inserts (pessaries) among healthy women. Mean DHA Tmax (hours) value will be submitted.

Time frame:
Day 5
Reported as:
Mean · hours
To Determine the Time to Maximum Concentration (Tmax) of Artesunate (AS) Following Five Consecutive Days
hoursArtesunate Vaginal Inserts/ Pessaries
To Determine the Time to Maximum Concentration (Tmax) of Artesunate (AS) Following Five Consecutive Days4.17 ± 1.59
SecondaryTo Determine the Time to Maximum Concentration (Tmax) of Dihydroartemisinin (DHA

To determine the time to maximum concentration (Tmax) of dihydroartemisinin (DHA) following five consecutive days of self-administration of 200mg Artesunate vaginal inserts (pessaries) among healthy women. Mean (Tmax) will be submitted.

Time frame:
Day 5
Reported as:
Mean · hours
To Determine the Time to Maximum Concentration (Tmax) of Dihydroartemisinin (DHA
hoursArtesunate Vaginal Inserts/ Pessaries
To Determine the Time to Maximum Concentration (Tmax) of Dihydroartemisinin (DHA6.33 ± 1.67
SecondaryTo Determine the Half-life (t1/2) of Artesunate (AS)

To determine the half-life (t1/2) of Artesunate (AS) following five consecutive days of self-administration of 200mg Artesunate vaginal inserts (pessaries) among healthy women. Mean Artesunate half-life (t1/2) (mins) will be submitted.

Time frame:
Day 5

No measurements were reported for this outcome.

SecondaryTo Determine the Half-life (t1/2) of Dihydroartemisinin (DHA)

To determine the half-life (t1/2) of dihydroartemisinin (DHA) following five consecutive days of self-administration of 200mg Artesunate vaginal inserts (pessaries) among healthy women. Mean DHA half-life (mins) will be submitted.

Time frame:
Day 5

No measurements were reported for this outcome.

SecondaryTo Determine the Apparent Clearance (CL/F) of Artesunate (AS)

To determine the apparent clearance (CL/F) of Artesunate (AS) following five consecutive days of self-administration of 200mg Artesunate vaginal inserts (pessaries) among healthy women. Mean Artesunate clearance (L/Kg/hr) will be submitted.

Time frame:
Day 5

No measurements were reported for this outcome.

SecondaryTo Determine the Apparent Clearance (CL/F) of Dihydroartemisinin (DHA)

To determine the apparent clearance (CL/F) of dihydroartemisinin (DHA) following five consecutive days of self-administration of 200mg Artesunate vaginal inserts (pessaries) among healthy women. Mean DHA clearance (L/Kg/hr) will be submitted.

Time frame:
Day 5

No measurements were reported for this outcome.

SecondaryTo Determine the Volume of Distribution (V/F) of Artesunate (AS)

To determine the volume of distribution (V/F) of Artesunate (AS) following five consecutive days of self-administration of 200mg Artesunate vaginal inserts (pessaries) among healthy women. Mean Artesunate volume of distribution (L/Kg) will be submitted.

Time frame:
Day 5

No measurements were reported for this outcome.

SecondaryTo Determine the Volume of Distribution (V/F) of Dihydroartemisinin (DHA)

To determine the volume of distribution (V/F) of dihydroartemisinin (DHA) following five consecutive days of self-administration of 200mg Artesunate vaginal inserts (pessaries) among healthy women. Mean dihydroartemisinin (DHA) of distribution (V/F) will be submitted.

Time frame:
Day 5

No measurements were reported for this outcome.

SecondaryType, Frequency, Severity, and Duration of Adverse Events

To investigate the safety of a 5-day course of self-administered intravaginal artesunate vaginal inserts (pessary) in women. Type, frequency, severity, and duration of reported and observed adverse events (AEs) using the U.S National Cancer Institute Common Terminology Criteria for Adverse Events, v5.0 (CTCAE 5.0) and the Division of AIDS Female Genital Adverse Events Grading Table will be submitted.

Time frame:
Up to day 10 days
Reported as:
Count of participants · Participants
Type, Frequency, Severity, and Duration of Adverse Events
ParticipantsArtesunate Vaginal Inserts/ Pessaries
abdominal pain Grade 13
vaginal discharge Grade 18
Toothache- Grade 11
vaginal fistula- Grade 21
vaginal pruritis- Grade 11

Adverse events

Collected over Up to ten days after the study intervention (vaginal insertion of Artesunate pessaries).. Non-serious events are listed at a 0% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
Artesunate Vaginal Inserts/ Pessaries0/12 (0%)0/12 (0%)8/12 (66.7%)
Most frequent other events
Most frequent other events
EventArtesunate Vaginal Inserts/ Pessaries
Vaginal dischargeReproductive system and breast disorders8/12
Abdominal PainGastrointestinal disorders3/12
ToothacheGastrointestinal disorders1/12
Vaginal fistulaReproductive system and breast disorders1/12
Pain in the extremityMusculoskeletal and connective tissue disorders1/12
Vaginal pruritisReproductive system and breast disorders1/12

Baseline characteristics

Age, Continuous
Age, Continuous(years)Artesunate Vaginal Inserts/ Pessaries
Mean23.3 ± 5.1
Sex: Female, Male
Sex: Female, Male(Participants)Artesunate Vaginal Inserts/ Pessaries
Female12
Male0
Race (NIH/OMB)
Race (NIH/OMB)(Participants)Artesunate Vaginal Inserts/ Pessaries
American Indian or Alaska Native0
Asian0
Native Hawaiian or Other Pacific Islander0
Black or African American12
White0
More than one race0
Unknown or Not Reported0
Region of Enrollment
Region of Enrollment(participants)Artesunate Vaginal Inserts/ Pessaries
Kenya12
Level of education
Level of education(Participants)Artesunate Vaginal Inserts/ Pessaries
College or higher2
Completed Secondary10
Occupation
Occupation(Participants)Artesunate Vaginal Inserts/ Pessaries
Salaried work1
other1
student10
Marital Status
Marital Status(Participants)Artesunate Vaginal Inserts/ Pessaries
Single/Never Married12
Married0
Electricity available
Electricity available(Participants)Artesunate Vaginal Inserts/ Pessaries
yes11
no1

3 further baseline measures are reported on the registry.

08

Study locations

1 site
  • Lumumba Sub-County Hospital
    Kisumu, Kenya
09

References and documents

Study documents

  • Protocol and statistical analysis plan · Nov 14, 2023

Documents are hosted by the registry — open the source record to download them.

Individual participant data

Plan to share: No

10

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Aug 19, 2025, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
11

Registry details

Key details

Study ID
NCT06263582
Lead sponsor
UNC Lineberger Comprehensive Cancer Center
Collaborators
Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)
Responsible party
Sponsor
First posted
Feb 16, 2024
Start date
May 29, 2024
Primary completion
Aug 14, 2024
Completion
Aug 14, 2024
Results posted
Aug 19, 2025
Last update
Aug 19, 2025

Study contacts

Chemtai Mungo, MD, MPH, FACOG
principal investigator · UNC Lineberger Comprehensive Cancer Center

Oversight

FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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This study is completed, as verified in Jul 2025. You cannot join it, but the record below documents what was studied.

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