ClinicalTrials.gg
CompletedNCT03490058Updated Dec 6, 2021

The Prevention Options for Women Evaluation Research (POWER) Cohort

An observational study in HIV/AIDS, sponsored by University of Washington. Completed at 3 sites in 2 countries. Open to female participants aged 16 Years to 25 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2021-12-06.

Sponsored by University of Washington · Observational

Help build ClinicalTrials.gg — short surveys, remote interviews or testing, in your language. Take part →

Study type
Observational
Model
Cohort
Time perspective
Prospective
Enrollment
2,255
Ages
16 Years to 25 Years
Sex
Female
01

Where this study stands

Counted across the records on this site · 2026-11-14

Among 38 studies in Acquired Immunodeficiency Syndrome by University of Washington — 7 open to participants now, 10 under way, none of them phase 3. Acquired Immunodeficiency Syndrome · University of Washington.

Started
2017
with 1 other
Observational
3 of 38
none open now
Registered
16th of 38
by date

Among the 38 studies in Acquired Immunodeficiency Syndrome by University of Washington, this one is one of 2 that started in 2017, is one of 3 observational ones, and was the 16th registered.

Acquired Immunodeficiency Syndrome

3,037 studies on the registry are indexed under Acquired Immunodeficiency Syndrome; 307 are open to participants now.

Browse Acquired Immunodeficiency Syndrome studies →

Open to participants now

7 of the 38 studies in Acquired Immunodeficiency Syndrome by University of Washington are open now, in 2 countries. Recruiting first, the newest first:

2 more — sign in →

By country, each count listing its studies:

All 7 open studies →

Who these studies take

Of the 198 Acquired Immunodeficiency Syndrome studies recruiting now, 118 (60%) set no upper age limit and 67 (34%) stop at 75 or younger; 43 take children under 18; 68 take healthy volunteers.

This study: 16 Years to 25 Years · female · healthy volunteers too.

The full table on the hub →

This tab as a report to print or save as PDF → With an account.

Was this useful?
Watch this landscapeDownload CSVNarrow it in search →With an account: a weekly mail of what changed among 38 studies in Acquired Immunodeficiency Syndrome by University of Washington, or all of them as a file.
02

Study summary

The POWER Cohort study is a PrEP implementation project to demonstrate Pre-exposure prophylaxis (PrEP) delivery for young women in Cape Town and Johannesburg, South Africa and Kisumu, Kenya.

Read the detailed description

PrEP will be delivered to young women according to emerging national guidelines in family planning clinics (Kisumu, Kenya), youth friendly clinics (Johannesburg, South Africa), and mobile youth friendly clinics (Cape Town, South Africa). The investigators will evaluate PrEP delivery and follow cohorts of young women at each clinic location to understand PrEP uptake and use. In the Kisumu clinics, the investigators will also offer expedited partner therapy and partner HIV self-tests to women who test positive for chlamydia and/or gonorrhea. At one clinic in Johannesburg, the investigators will evaluate the use of a decision support tool to improve the decision to initiate PrEP.

03

Conditions studied

  • HIV/AIDS

Keywords

  • pre-exposure prophylaxis
  • young women
  • delivery of health care
  • HIV infections/prevention
04

Who can participate

Ages eligible
16 Years to 25 Years
Sexes eligible
Female
Accepts healthy volunteers
Yes
Sampling method
Non-probability sample

Study population

Sexually active HIV uninfected women ages 16-25 will be recruited from family planning clinics, youth clinics, and youth outreach programs.

Eligibility criteria

Inclusion Criteria:

  • Age 16-25 (16 and 17 year olds, where permissible by national regulations and local IRB approval)
  • Able and willing to provide written
  • Recently sexually active (defined as having had vaginal intercourse at least once in the previous three months)
  • uninfected based on negative HIV rapid tests, on the date of enrollment
Terms in these criteria, in plain language(2)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

HIV

The human immunodeficiency virus, which weakens the immune system.

Many studies now accept people whose HIV is controlled on treatment, judged by the viral load and the CD4 count. Check the limits this study sets.

05

Study design

Observational model
Cohort
Time perspective
Prospective
Enrollment
2,255 participants (actual)
Patient registry
No
Biospecimen retention
Samples without dna

Groups and cohorts

  • Young women

    Sexually active HIV-uninfected women between 16-25 years of age will be given Truvada.

    Drug: Truvada

Interventions

  • DrugTruvada

    A fixed dose of oral co-formulated tenofovir disoproxil fumarate (TDF)/emtricitabine (FTC) will be used as PrEP.

06

What researchers measure

Primary outcomes

  1. Demonstrate PrEP delivery models for young women in different settings and geographies.

    Mixed methods assessment of how PrEP is implemented at the user, provider, health care facility, and community levels.

    Time frame: Up to 36 months

Secondary outcomes

  1. PrEP initiation

    Measure the number of young women who initiate PrEP.

    Time frame: Up to 36 months

  2. PrEP adherence

    Adherence by young women to PrEP. Adherence will be measured by the timing of PrEP refills and self-reported PrEP use. Blood samples for detection and quantification of PrEP levels (testing in batch) will be done for those who seroconvert to HIV and a subset who remain HIV uninfected.

    Time frame: Up to 36 months

  3. HIV seroconversion

    Assess HIV incidence during PrEP use and non-use.

    Time frame: Up to 36 months

Other outcomes

  1. Assess cost and cost-effectiveness of PrEP when delivered in public health clinics.

    Time-motion studies will be conducted to define the cost and cost effectiveness of the intervention in terms of HIV infections averted, disability-adjusted life years saved, and incremental cost-effectiveness of PrEP over routine HIV care.

    Time frame: Up to 36 months

  2. Evaluate the acceptability of delivering expedited partner therapy.

    Measure the number of women who accept STI expedited partner therapy and HIV self-test kits for their partners.

    Time frame: Up to 36 months

  3. Assess the effect of a decision support tool on PrEP uptake

    Using a randomized design, evaluate if a decision support tool increases PrEP uptake.

    Time frame: Up to 36 months

  4. Evaluate the impact of HIV self-testing on PrEP delivery among young women receiving PrEP

    Using a pretest posttest design, evaluate the feasibility of integrating HIV self-testing into PrEP delivery.

    Time frame: Up to 12 months

07

Study locations

3 sites
  • Kenya Medical Research Institute
    Kisumu, Kenya
  • Desmond Tutu HIV Foundation
    Cape Town, South Africa
  • Wits Reproductive Health and HIV Institute
    Johannesburg, South Africa
08

References and documents

Publications

  • Celum CL, Bukusi EA, Bekker LG, Delany-Moretlwe S, Kidoguchi L, Omollo V, Rousseau E, Travill D, Morton JF, Mogaka F, O'Malley G, Barnabee G, van der Straten A, Donnell D, Parikh UM, Kudrick L, Anderson PL, Haberer JE, Wu L, Heffron R, Johnson R, Morrison S, Baeten JM; POWER Study Team. PrEP use and HIV seroconversion rates in adolescent girls and young women from Kenya and South Africa: the POWER demonstration project. J Int AIDS Soc. 2022 Jul;25(7):e25962. doi: 10.1002/jia2.25962. PubMed 35822945 ↗
  • Roche SD, Barnabee G, Omollo V, Mogaka F, Odoyo J, Bukusi EA, Morton JF, Johnson R, Celum C, Baeten JM, O'Malley G. Implementation strategies for integrating pre-exposure prophylaxis for HIV prevention and family planning services for adolescent girls and young women in Kenya: a qualitative study. BMC Health Serv Res. 2022 Mar 30;22(1):422. doi: 10.1186/s12913-022-07742-8. PubMed 35354456 ↗
  • Omollo V, Bukusi EA, Kidoguchi L, Mogaka F, Odoyo JB, Celum C, Morton J, Johnson R, Baeten JM. A Pilot Evaluation of Expedited Partner Treatment and Partner Human Immunodeficiency Virus Self-Testing Among Adolescent Girls and Young Women Diagnosed With Chlamydia trachomatis and Neisseria gonorrhoeae in Kisumu, Kenya. Sex Transm Dis. 2021 Oct 1;48(10):766-772. doi: 10.1097/OLQ.0000000000001430. PubMed 33859147 ↗

Individual participant data

Plan to share: Yes — Data from the POWER Cohort Study will be available at the end of the project by contacting the Principal Investigators.

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Ran from Jun 2017 to primary completion in Dec 2020, 41 months.

Of 165 non-industry observational studies under Acquired Immunodeficiency Syndrome, half reached primary completion within 46 months of starting (the median), counting those still running; a quarter within 22 and three quarters within 83. This study's 41 months is below that.

Counting every sponsor, half of 177 studies reached it within 44 months; a quarter within 19 and three quarters within 79.

How these figures are worked out, and which studies are left out of them.

Registered
Mar 19, 2018
First posted
Apr 6, 2018
StartActual
Jun 14, 2017
Primary completionActual
Dec 4, 2020
CompletionActual
Jul 23, 2021
Last update
Dec 6, 2021
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Dec 6, 2021, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT03490058
Collaborators
Desmond Tutu HIV Foundation, Wits Reproductive Health and HIV Institute, Kenya Medical Research Institute, United States Agency for International Development (USAID), RTI International, Harvard Medical School (HMS and HSDM), University of Pittsburgh, National Institute of Mental Health (NIMH)
Responsible party
Connie Celum (Prof of Medicine & Global Health, Adjunct Prof of Epidemiology, SOM: Global Health, University of Washington) — Principal investigator
First posted
Apr 6, 2018
Start date
Jun 14, 2017
Primary completion
Dec 4, 2020
Completion
Jul 23, 2021
Last update
Dec 6, 2021

Study contacts

Connie L Celum, MD, MPH
principal investigator · University of Washington
Jared M Baeten, MD, PhD
principal investigator · University of Washington
Rachel Johnson, MPH
study director · University of Washington

Oversight

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

Not currently enrolling

This study is completed, as verified in Dec 2021. You cannot join it, but the record below documents what was studied.

Follow this study

Get an email when the registry record changes — status, dates, results — or when someone posts here.

Sign in to follow

Discussion

Questions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.

Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.

Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.

Start the discussion