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Evaluating the Safety of and Adherence to a Vaginal Matrix Ring Containing Dapivirine and Oral Emtricitabine/Tenofovir Disoproxil Fumarate in an Adolescent and Young Adult Female Population

A Phase 2a Crossover Trial Evaluating the Safety of and Adherence to a Vaginal Matrix Ring Containing Dapivirine and Oral Emtricitabine/Tenofovir Disoproxil Fumarate in an Adolescent and Young Adult Female Population

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03593655
Enrollment
247
Registered
2018-07-20
Start date
2019-01-14
Completion date
2021-09-09
Last updated
2023-06-22

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

Conditions

HIV Infections

Brief summary

The purpose of this study is to evaluate the safety of and adherence to a vaginal matrix ring (VR) containing dapivirine and oral emtricitabine/tenofovir disoproxil fumarate (FTC/TDF) in adolescent and young adult females.

Detailed description

This study will evaluate the safety of and adherence to a vaginal matrix ring (VR) containing dapivirine and oral emtricitabine/tenofovir disoproxil fumarate (FTC/TDF) in adolescent and young adult females. The study will enroll healthy, HIV-uninfected adolescent and young adult females between 16 and 21 years of age. Participants will be randomized to one of two sequences of one VR containing 25 mg of dapivirine to be inserted monthly for 24 weeks and one 200 mg FTC/300 mg TDF oral tablet taken daily for 24 weeks. After completing the randomized sequence of two study product use periods, participants will then select between the two study products to use in the final 24 weeks of the trial. Participants will be able to choose either or neither study product during the third product use period. The study includes approximately 76 weeks of follow-up per participant. Participants will attend monthly study visits, which may include behavioral assessments/counseling; physical and pelvic examinations; and blood, urine, and pelvic sample collection.

Interventions

Vaginal ring containing 25 mg of dapivirine

DRUGFTC/TDF

Tablet containing 200 mg FTC/300 mg TDF

Sponsors

National Institute of Allergy and Infectious Diseases (NIAID)
Lead SponsorNIH

Study design

Allocation
RANDOMIZED
Intervention model
CROSSOVER
Primary purpose
PREVENTION
Masking
NONE

Eligibility

Sex/Gender
FEMALE
Age
16 Years to 21 Years
Healthy volunteers
Yes

Inclusion criteria

* Age 16 through 21 years (inclusive) at Enrollment, verified per site standard operating procedures (SOPs). * Able and willing to provide informed consent, and if under the legal age of consent be able to provide informed assent and obtain parental or guardian permission/consent, to be screened for and to enroll in MTN-034 (as specified in site SOP). * Able and willing to provide adequate locator information, as defined in site SOPs. * Able and willing to comply with all study procedural requirements. * Per participant report at Screening, post-menarche. * HIV-uninfected based on testing performed at Screening and Enrollment (per protocol algorithms found in the study protocol). * Per participant report at Screening, history of at least one episode of sexual intercourse in participant's lifetime. * Negative pregnancy test at Screening and Enrollment. * Per participant report, use of an effective method of contraception for at least two months prior to Enrollment, and intending to continue use of an effective method for the duration of study participation; effective methods include: * hormonal methods (except contraceptive ring). * intrauterine device (IUD). * Note: Participant must be on the same contraception method for at least the two months prior to Enrollment. * Per participant report at Screening, willing to abstain from inserting anything into the vagina for 72 hours prior to each study visit, including receptive intercourse. * Note: In the event the VR has been expelled and requires reinsertion, repositioning the VR is permitted. * Note: Participant use of tampons is permitted at any time during the study. * At Screening and Enrollment, agrees not to participate in other research studies involving drugs, medical devices, vaginal products, or vaccines for the duration of study participation, unless approved by the Protocol Safety Review Team (PSRT).

Exclusion criteria

* Per participant report at Screening and Enrollment, intends to do any of the following during the study participation period: * become pregnant. * access and/or use oral PrEP outside the context of study participation. * relocate away from the study site. * travel away from the study site for a time period that would interfere with product resupply and study participation. * At Screening or Enrollment, has a positive HIV test. * Diagnosed with urinary tract infection (UTI), pelvic inflammatory disease (PID), sexually transmitted infection (STI) or reproductive tract infection (RTI) requiring treatment per World Health Organization (WHO) guidelines at Screening or Enrollment. * Note: Otherwise eligible participants diagnosed during screening with a UTI, PID or STI/RTI requiring treatment per WHO guidelines - other than asymptomatic bacterial vaginosis (BV) and asymptomatic candidiasis - are offered treatment consistent with WHO recommendations. If treatment is completed and symptoms have resolved within 70 days of obtaining informed assent/consent for screening, the participant may be enrolled. Genital warts requiring treatment also must be treated prior to enrollment. Genital warts requiring therapy are defined as those that cause undue burden or discomfort to the participant, including bulky size, unacceptable appearance, or physical discomfort. * At Enrollment, has a clinically apparent Grade 2 or higher pelvic exam finding. * Note: Cervical friability bleeding associated with speculum insertion and/or specimen collection judged to be within the range of normal according to the clinical judgment of the Investigator of Record (IoR)/designee is considered expected non-menstrual bleeding and is not exclusionary. * Note: Otherwise eligible participants with exclusionary pelvic exam findings may be enrolled/randomized after the findings have improved to a non-exclusionary severity grading or resolved. If improvement to a non-exclusionary grade or resolution is documented within 70 days of providing informed assent/consent for screening, the participant may be enrolled. * Participant report and/or clinical evidence of any of the following: * Known adverse reaction to any of the study products (ever). * Known adverse reaction to latex and polyurethane (ever). * Symptoms suggestive of acute HIV infection at Screening or Enrollment. * Non-therapeutic injection drug use in the 12 months prior to Enrollment. * Use of HIV PEP and/or PrEP within the 3 months prior to Enrollment. * Currently breastfeeding. * Last pregnancy outcome within 8 weeks or less of Enrollment. * Participation in any other research study involving drugs, medical devices, vaginal products or vaccines within 60 days of Enrollment. * At Enrollment, as determined by the IoR/designee, has any significant uncontrolled active or chronic cardiovascular, renal, liver, hematologic, neurologic, gastrointestinal, psychiatric, endocrine, respiratory, immunologic disorder or infectious disease. * Has any of the following laboratory abnormalities at Screening Visit: * Positive for hepatitis B surface antigen (HBsAG). * Hemoglobin Grade 2 or higher. * Calculated creatinine clearance less than 60 mL/min by the Schwartz Equation. * Note: Otherwise eligible participants with an exclusionary test may be re-tested during the screening process; re-testing procedure details can be found in the MTN-034 Study Specific Procedures (SSP) Manual. If improvement to a non-exclusionary grade or resolution is documented within 70 days of providing informed assent/consent for screening, the participant may be enrolled. * Has any other condition that, in the opinion of the IoR/designee, would preclude informed assent/consent, make study participation unsafe, complicate interpretation of study outcome data, or otherwise interfere with achieving the study objectives.

Design outcomes

Primary

MeasureTime frameDescription
Number of Participants With Grade 2 or Higher Adverse Events (AEs)Study periods 1 and 2During participants' first year on study (i.e., during first and second product use periods) participants were randomized to use either the dapivirine vaginal ring for 6 months followed by FTC/TDF for 6 months or vice versa. All AEs were reported as per the Division of AIDS Table for Grading the Severity of Adult and Pediatric Adverse Events. AEs that were graded as at least Grade 2 (i.e., moderate or higher) were classified into the two periods based on reported date of AE onset, with AEs occurring between the participant's randomization date and the date 30 days after their Week 24 visit classified into Period 1, and AEs occurring between their Week 24 visit and the date 30 days after their Week 48 visit classified into Period 2. AEs occurring within 30 days of the Week 24 visit were counted in both periods. This is the number of participant-periods with at least one grade 2 or higher AE by product (combining the two product use periods).
Number of Participant-Visits With No Product UseStudy periods 1 and 2During the study period where participants were randomized to use FTC/TDF they were assessed for FTC/TDF adherence by dried blood spot (DBS) at monthly visits. Results that were below the lower limit of detection (\< 16.6 fmol/punch) were classified as no use of FTC/TDF during the preceding month, and detectable results (\>= 16.6 fmol/punch) classified as at least some FTC/TDF use. During the study period where participants were randomized to use the dapivirine vaginal ring (VR) they were assessed for ring adherence by residual drug levels in returned VRs. Results that were less than or equal to a rate of 0.9mg dapivirine released per month were classified as no use of the VR during that month, and results greater than 0.9mg dapivirine release per month classified as at least some VR use.

Secondary

MeasureTime frameDescription
Number of Participant-Visits Reporting Acceptability of Study ProductStudy periods 1 and 2During the study period where participants were randomized to use FTC/TDF they were asked to rate how much they liked using the tablets for HIV prevention (3 and 6 months after initiating the product). During the study period where participants were randomized to use the dapivirine vaginal ring they were asked to rate how much they liked using the ring for HIV prevention (3 and 6 months after initiating the product).
Number of Participant-Visits With No Product UseStudy period 3 (Weeks 49-72)During the study period where participants chose which product they used (i.e., Weeks 49-72) they were assessed for FTC/TDF adherence by dried blood spot (DBS) and/or dapivirine vaginal ring adherence by residual drug levels in returned VRs at monthly visits, depending on which product they chose. Results that were below the lower limit of detection (\< 16.6 fmol/punch) were classified as no use of FTC/TDF during the preceding month, and detectable results (\>= 16.6 fmol/punch) classified as at least some FTC/TDF use. Results that were less than or equal to a rate of 0.9mg dapivirine released per month were classified as no use of the VR during that month, and results greater than 0.9mg dapivirine release per month classified as at least some VR use.
Number of Participants Selecting Each Study ProductStudy period 3 (Weeks 49-72)During the third study product use period (i.e., Weeks 49-72) participants chose whether to use the dapivirine VR, FTC/TDF oral tablets, or neither product, and could change their decision throughout the 6 month period. Participants were categorized into one of four categories based on their selection pattern: always chose dapivirine VR, always chose FTC/TDF oral tablets, switched at least once (including switching to or from no product), and never chose either product.
Percentage of Participants Reporting Preference for Dapivirine VR as Compared to FTC/TDF Oral TabletsAll three study periods (enrollment, month 12, and month 18 study visits)Participants were asked would you prefer to use the ring or the tablets for HIV prevention? at their enrollment, Month 12, and product use end visit (Month 18) visits.

Countries

South Africa, Uganda, Zimbabwe

Participant flow

Participants by arm

ArmCount
Sequence A: Dapivirine Vaginal Ring + FTC/TDF
Participants will receive one 25 mg dapivirine vaginal ring inserted vaginally each month for 24 weeks, followed by one FTC/TDF oral tablet taken by mouth daily for 24 weeks, followed by participant's choice of either or neither study product for 24 weeks. Dapivirine vaginal ring: Vaginal ring containing 25 mg of dapivirine FTC/TDF: Tablet containing 200 mg FTC/300 mg TDF
124
Sequence B: FTC/TDF + Dapivirine Vaginal Ring
Participants will receive one FTC/TDF oral tablet taken by mouth daily for 24 weeks, followed by one 25 mg dapivirine vaginal ring inserted vaginally each month for 24 weeks, followed by participant's choice of either or neither study product for 24 weeks. Dapivirine vaginal ring: Vaginal ring containing 25 mg of dapivirine FTC/TDF: Tablet containing 200 mg FTC/300 mg TDF
123
Total247

Withdrawals & dropouts

PeriodReasonFG000FG001
First Product Use PeriodLost to Follow-up13
First Product Use PeriodWithdrawal by Subject11
Second Product Use PeriodLost to Follow-up10
Second Product Use PeriodWithdrawal by Subject11
Third Product Use PeriodLost to Follow-up12
Third Product Use PeriodPhysician Decision01
Third Product Use PeriodWithdrawal by Subject01

Baseline characteristics

CharacteristicSequence A: Dapivirine Vaginal Ring + FTC/TDFSequence B: FTC/TDF + Dapivirine Vaginal RingTotal
Age, Continuous18.3 years
STANDARD_DEVIATION 1.4
18.2 years
STANDARD_DEVIATION 1.4
18.3 years
STANDARD_DEVIATION 1.4
Age, Customized
16-17 years
41 Participants44 Participants85 Participants
Age, Customized
18-19 years
57 Participants57 Participants114 Participants
Age, Customized
20-21 years
26 Participants22 Participants48 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
0 Participants0 Participants0 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
124 Participants123 Participants247 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Asian
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Black or African American
120 Participants119 Participants239 Participants
Race (NIH/OMB)
More than one race
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
4 Participants3 Participants7 Participants
Race (NIH/OMB)
White
0 Participants1 Participants1 Participants
Region of Enrollment
South Africa
64 participants63 participants127 participants
Region of Enrollment
Uganda
30 participants30 participants60 participants
Region of Enrollment
Zimbabwe
30 participants30 participants60 participants
Sex: Female, Male
Female
124 Participants123 Participants247 Participants
Sex: Female, Male
Male
0 Participants0 Participants0 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
deaths
Total, all-cause mortality
0 / 2410 / 2450 / 238
other
Total, other adverse events
205 / 241219 / 245203 / 238
serious
Total, serious adverse events
0 / 2413 / 2453 / 238

Outcome results

Primary

Number of Participants With Grade 2 or Higher Adverse Events (AEs)

During participants' first year on study (i.e., during first and second product use periods) participants were randomized to use either the dapivirine vaginal ring for 6 months followed by FTC/TDF for 6 months or vice versa. All AEs were reported as per the Division of AIDS Table for Grading the Severity of Adult and Pediatric Adverse Events. AEs that were graded as at least Grade 2 (i.e., moderate or higher) were classified into the two periods based on reported date of AE onset, with AEs occurring between the participant's randomization date and the date 30 days after their Week 24 visit classified into Period 1, and AEs occurring between their Week 24 visit and the date 30 days after their Week 48 visit classified into Period 2. AEs occurring within 30 days of the Week 24 visit were counted in both periods. This is the number of participant-periods with at least one grade 2 or higher AE by product (combining the two product use periods).

Time frame: Study periods 1 and 2

Population: All participants who attended at least one visit during the product use period where they were randomized to receive the product (e.g., a participant randomized to Sequence A would be in the analysis population for dapivirine vaginal ring due to being randomized, and would be in the analysis population for FTC/TDF if they attended any study visits during the second product use period).

ArmMeasureGroupCategoryValue (COUNT_OF_PARTICIPANTS)
Dapivirine Vaginal RingNumber of Participants With Grade 2 or Higher Adverse Events (AEs)Study Period 1 (Weeks 1-24)No grade 2+ AE36 Participants
Dapivirine Vaginal RingNumber of Participants With Grade 2 or Higher Adverse Events (AEs)Study Period 1 (Weeks 1-24)At least one grade 2+ AE88 Participants
Dapivirine Vaginal RingNumber of Participants With Grade 2 or Higher Adverse Events (AEs)Study Period 2 (Weeks 25-48)No grade 2+ AE22 Participants
Dapivirine Vaginal RingNumber of Participants With Grade 2 or Higher Adverse Events (AEs)Study Period 2 (Weeks 25-48)At least one grade 2+ AE95 Participants
FTC/TDFNumber of Participants With Grade 2 or Higher Adverse Events (AEs)Study Period 2 (Weeks 25-48)At least one grade 2+ AE94 Participants
FTC/TDFNumber of Participants With Grade 2 or Higher Adverse Events (AEs)Study Period 1 (Weeks 1-24)No grade 2+ AE36 Participants
FTC/TDFNumber of Participants With Grade 2 or Higher Adverse Events (AEs)Study Period 2 (Weeks 25-48)No grade 2+ AE28 Participants
FTC/TDFNumber of Participants With Grade 2 or Higher Adverse Events (AEs)Study Period 1 (Weeks 1-24)At least one grade 2+ AE87 Participants
Comparison: Comparison of the proportion of participants experiencing a grade 2 adverse event between products, with a null hypothesis of no difference.p-value: 0.9295% CI: [0.9, 1.12]generalized estimating equation
Primary

Number of Participant-Visits With No Product Use

During the study period where participants were randomized to use FTC/TDF they were assessed for FTC/TDF adherence by dried blood spot (DBS) at monthly visits. Results that were below the lower limit of detection (\< 16.6 fmol/punch) were classified as no use of FTC/TDF during the preceding month, and detectable results (\>= 16.6 fmol/punch) classified as at least some FTC/TDF use. During the study period where participants were randomized to use the dapivirine vaginal ring (VR) they were assessed for ring adherence by residual drug levels in returned VRs. Results that were less than or equal to a rate of 0.9mg dapivirine released per month were classified as no use of the VR during that month, and results greater than 0.9mg dapivirine release per month classified as at least some VR use.

Time frame: Study periods 1 and 2

Population: Number of participant-visits during product use periods randomized to each product for which there is adherence data available.

ArmMeasureGroupCategoryValue (COUNT_OF_UNITS)
Dapivirine Vaginal RingNumber of Participant-Visits With No Product UseStudy Period 1No use19 Visits
Dapivirine Vaginal RingNumber of Participant-Visits With No Product UseStudy Period 1At least some use705 Visits
Dapivirine Vaginal RingNumber of Participant-Visits With No Product UseStudy Period 2No use41 Visits
Dapivirine Vaginal RingNumber of Participant-Visits With No Product UseStudy Period 2At least some use642 Visits
FTC/TDFNumber of Participant-Visits With No Product UseStudy Period 2At least some use635 Visits
FTC/TDFNumber of Participant-Visits With No Product UseStudy Period 1No use11 Visits
FTC/TDFNumber of Participant-Visits With No Product UseStudy Period 2No use10 Visits
FTC/TDFNumber of Participant-Visits With No Product UseStudy Period 1At least some use660 Visits
Secondary

Number of Participants Selecting Each Study Product

During the third study product use period (i.e., Weeks 49-72) participants chose whether to use the dapivirine VR, FTC/TDF oral tablets, or neither product, and could change their decision throughout the 6 month period. Participants were categorized into one of four categories based on their selection pattern: always chose dapivirine VR, always chose FTC/TDF oral tablets, switched at least once (including switching to or from no product), and never chose either product.

Time frame: Study period 3 (Weeks 49-72)

Population: All participants who attended at least one visit during study period 3

ArmMeasureCategoryValue (COUNT_OF_PARTICIPANTS)
Dapivirine Vaginal RingNumber of Participants Selecting Each Study ProductAlways chose ring66 Participants
Dapivirine Vaginal RingNumber of Participants Selecting Each Study ProductAlways chose tablets35 Participants
Dapivirine Vaginal RingNumber of Participants Selecting Each Study ProductAt least one switch17 Participants
Dapivirine Vaginal RingNumber of Participants Selecting Each Study ProductNever chose ring or tablets2 Participants
FTC/TDFNumber of Participants Selecting Each Study ProductNever chose ring or tablets7 Participants
FTC/TDFNumber of Participants Selecting Each Study ProductAlways chose ring71 Participants
FTC/TDFNumber of Participants Selecting Each Study ProductAt least one switch13 Participants
FTC/TDFNumber of Participants Selecting Each Study ProductAlways chose tablets27 Participants
Secondary

Number of Participant-Visits Reporting Acceptability of Study Product

During the study period where participants were randomized to use FTC/TDF they were asked to rate how much they liked using the tablets for HIV prevention (3 and 6 months after initiating the product). During the study period where participants were randomized to use the dapivirine vaginal ring they were asked to rate how much they liked using the ring for HIV prevention (3 and 6 months after initiating the product).

Time frame: Study periods 1 and 2

Population: Number of participant-visits during product use periods randomized to each product for which there are responses to the question about acceptability.

ArmMeasureGroupCategoryValue (COUNT_OF_UNITS)
Dapivirine Vaginal RingNumber of Participant-Visits Reporting Acceptability of Study ProductWeek 12Like, or like very much105 Visits
Dapivirine Vaginal RingNumber of Participant-Visits Reporting Acceptability of Study ProductWeek 12Neither like nor dislike, dislike, or dislike very much5 Visits
Dapivirine Vaginal RingNumber of Participant-Visits Reporting Acceptability of Study ProductWeek 24Like, or like very much105 Visits
Dapivirine Vaginal RingNumber of Participant-Visits Reporting Acceptability of Study ProductWeek 24Neither like nor dislike, dislike, or dislike very much6 Visits
Dapivirine Vaginal RingNumber of Participant-Visits Reporting Acceptability of Study ProductWeek 36Like, or like very much91 Visits
Dapivirine Vaginal RingNumber of Participant-Visits Reporting Acceptability of Study ProductWeek 36Neither like nor dislike, dislike, or dislike very much14 Visits
Dapivirine Vaginal RingNumber of Participant-Visits Reporting Acceptability of Study ProductWeek 48Like, or like very much90 Visits
Dapivirine Vaginal RingNumber of Participant-Visits Reporting Acceptability of Study ProductWeek 48Neither like nor dislike, dislike, or dislike very much21 Visits
FTC/TDFNumber of Participant-Visits Reporting Acceptability of Study ProductWeek 48Neither like nor dislike, dislike, or dislike very much47 Visits
FTC/TDFNumber of Participant-Visits Reporting Acceptability of Study ProductWeek 12Like, or like very much72 Visits
FTC/TDFNumber of Participant-Visits Reporting Acceptability of Study ProductWeek 36Like, or like very much93 Visits
FTC/TDFNumber of Participant-Visits Reporting Acceptability of Study ProductWeek 12Neither like nor dislike, dislike, or dislike very much35 Visits
FTC/TDFNumber of Participant-Visits Reporting Acceptability of Study ProductWeek 48Like, or like very much68 Visits
FTC/TDFNumber of Participant-Visits Reporting Acceptability of Study ProductWeek 24Like, or like very much73 Visits
FTC/TDFNumber of Participant-Visits Reporting Acceptability of Study ProductWeek 36Neither like nor dislike, dislike, or dislike very much18 Visits
FTC/TDFNumber of Participant-Visits Reporting Acceptability of Study ProductWeek 24Neither like nor dislike, dislike, or dislike very much32 Visits
Secondary

Number of Participant-Visits With No Product Use

During the study period where participants chose which product they used (i.e., Weeks 49-72) they were assessed for FTC/TDF adherence by dried blood spot (DBS) and/or dapivirine vaginal ring adherence by residual drug levels in returned VRs at monthly visits, depending on which product they chose. Results that were below the lower limit of detection (\< 16.6 fmol/punch) were classified as no use of FTC/TDF during the preceding month, and detectable results (\>= 16.6 fmol/punch) classified as at least some FTC/TDF use. Results that were less than or equal to a rate of 0.9mg dapivirine released per month were classified as no use of the VR during that month, and results greater than 0.9mg dapivirine release per month classified as at least some VR use.

Time frame: Study period 3 (Weeks 49-72)

Population: Number of participant-visits during product choice period for which there is adherence data available.

ArmMeasureCategoryValue (COUNT_OF_UNITS)
Dapivirine Vaginal RingNumber of Participant-Visits With No Product UseNo use57 Visits
Dapivirine Vaginal RingNumber of Participant-Visits With No Product UseAt least some use800 Visits
FTC/TDFNumber of Participant-Visits With No Product UseNo use19 Visits
FTC/TDFNumber of Participant-Visits With No Product UseAt least some use381 Visits
Secondary

Percentage of Participants Reporting Preference for Dapivirine VR as Compared to FTC/TDF Oral Tablets

Participants were asked would you prefer to use the ring or the tablets for HIV prevention? at their enrollment, Month 12, and product use end visit (Month 18) visits.

Time frame: All three study periods (enrollment, month 12, and month 18 study visits)

Population: The analysis population is all participants who completed the questionnaire at the visit.

ArmMeasureGroupCategoryValue (COUNT_OF_PARTICIPANTS)
Dapivirine Vaginal RingPercentage of Participants Reporting Preference for Dapivirine VR as Compared to FTC/TDF Oral TabletsEnrollmentSkipped question1 Participants
Dapivirine Vaginal RingPercentage of Participants Reporting Preference for Dapivirine VR as Compared to FTC/TDF Oral TabletsMonth 12Neither product0 Participants
Dapivirine Vaginal RingPercentage of Participants Reporting Preference for Dapivirine VR as Compared to FTC/TDF Oral TabletsEnrollmentPreferred tablets43 Participants
Dapivirine Vaginal RingPercentage of Participants Reporting Preference for Dapivirine VR as Compared to FTC/TDF Oral TabletsMonth 12Skipped question0 Participants
Dapivirine Vaginal RingPercentage of Participants Reporting Preference for Dapivirine VR as Compared to FTC/TDF Oral TabletsMonth 12Preferred ring74 Participants
Dapivirine Vaginal RingPercentage of Participants Reporting Preference for Dapivirine VR as Compared to FTC/TDF Oral TabletsMonth 18Preferred ring67 Participants
Dapivirine Vaginal RingPercentage of Participants Reporting Preference for Dapivirine VR as Compared to FTC/TDF Oral TabletsEnrollmentNeither product0 Participants
Dapivirine Vaginal RingPercentage of Participants Reporting Preference for Dapivirine VR as Compared to FTC/TDF Oral TabletsMonth 18Preferred tablets35 Participants
Dapivirine Vaginal RingPercentage of Participants Reporting Preference for Dapivirine VR as Compared to FTC/TDF Oral TabletsMonth 12Preferred tablets37 Participants
Dapivirine Vaginal RingPercentage of Participants Reporting Preference for Dapivirine VR as Compared to FTC/TDF Oral TabletsMonth 18Either product equally13 Participants
Dapivirine Vaginal RingPercentage of Participants Reporting Preference for Dapivirine VR as Compared to FTC/TDF Oral TabletsEnrollmentEither product equally29 Participants
Dapivirine Vaginal RingPercentage of Participants Reporting Preference for Dapivirine VR as Compared to FTC/TDF Oral TabletsMonth 18Neither product0 Participants
Dapivirine Vaginal RingPercentage of Participants Reporting Preference for Dapivirine VR as Compared to FTC/TDF Oral TabletsMonth 12Either product equally5 Participants
Dapivirine Vaginal RingPercentage of Participants Reporting Preference for Dapivirine VR as Compared to FTC/TDF Oral TabletsMonth 18Skipped question0 Participants
Dapivirine Vaginal RingPercentage of Participants Reporting Preference for Dapivirine VR as Compared to FTC/TDF Oral TabletsEnrollmentPreferred ring51 Participants
FTC/TDFPercentage of Participants Reporting Preference for Dapivirine VR as Compared to FTC/TDF Oral TabletsMonth 18Skipped question0 Participants
FTC/TDFPercentage of Participants Reporting Preference for Dapivirine VR as Compared to FTC/TDF Oral TabletsEnrollmentPreferred ring43 Participants
FTC/TDFPercentage of Participants Reporting Preference for Dapivirine VR as Compared to FTC/TDF Oral TabletsEnrollmentPreferred tablets57 Participants
FTC/TDFPercentage of Participants Reporting Preference for Dapivirine VR as Compared to FTC/TDF Oral TabletsEnrollmentEither product equally18 Participants
FTC/TDFPercentage of Participants Reporting Preference for Dapivirine VR as Compared to FTC/TDF Oral TabletsEnrollmentNeither product4 Participants
FTC/TDFPercentage of Participants Reporting Preference for Dapivirine VR as Compared to FTC/TDF Oral TabletsEnrollmentSkipped question1 Participants
FTC/TDFPercentage of Participants Reporting Preference for Dapivirine VR as Compared to FTC/TDF Oral TabletsMonth 12Preferred ring76 Participants
FTC/TDFPercentage of Participants Reporting Preference for Dapivirine VR as Compared to FTC/TDF Oral TabletsMonth 12Preferred tablets30 Participants
FTC/TDFPercentage of Participants Reporting Preference for Dapivirine VR as Compared to FTC/TDF Oral TabletsMonth 12Either product equally2 Participants
FTC/TDFPercentage of Participants Reporting Preference for Dapivirine VR as Compared to FTC/TDF Oral TabletsMonth 12Neither product2 Participants
FTC/TDFPercentage of Participants Reporting Preference for Dapivirine VR as Compared to FTC/TDF Oral TabletsMonth 12Skipped question1 Participants
FTC/TDFPercentage of Participants Reporting Preference for Dapivirine VR as Compared to FTC/TDF Oral TabletsMonth 18Preferred ring66 Participants
FTC/TDFPercentage of Participants Reporting Preference for Dapivirine VR as Compared to FTC/TDF Oral TabletsMonth 18Preferred tablets33 Participants
FTC/TDFPercentage of Participants Reporting Preference for Dapivirine VR as Compared to FTC/TDF Oral TabletsMonth 18Either product equally5 Participants
FTC/TDFPercentage of Participants Reporting Preference for Dapivirine VR as Compared to FTC/TDF Oral TabletsMonth 18Neither product4 Participants

Source: ClinicalTrials.gov · Data processed: Feb 14, 2026