ClinicalTrials.gg
RecruitingNCT05557318Updated Apr 10, 2024

Using Micro Electro Mechanical Systems to Detect the Air of Vaginal Discharge

An interventional study of Vaginal swab for RT-PCR and Vaginal swab for culture in Vaginal Infection and Vaginitis, sponsored by Taiwan Carbon Nano Technology Corporation. Recruiting at 2 sites in Taiwan. Open to female participants aged 20 Years to 50 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2024-04-10.

Sponsored by Taiwan Carbon Nano Technology Corporation · Not applicable, Interventional, and Diagnostic

From the registry’s dates

  • Primary completion was expected by Sep 2025, 1 year 2 months ago, but the record still lists the study as recruiting.
  • Started Oct 2022; still recruiting 4 years 1 month later.
Phase
Not applicable
Study type
Interventional
Enrollment
120
Allocation
Non-randomized
Ages
20 Years to 50 Years
Sex
Female
01

Study summary

This clinical study aims to train the algorithm and assess the performance of the Ainos Flora Women's Vaginal Health Tester in identifying vaginal infections.

Read the detailed description

Ainos Flora Women's Vaginal Health Tester is an in vitro diagnostic device implementing electronic nose technology to detect vaginal infections by examining metabolized gases of vaginal bacteria. The electronic nose system mainly comprises the Micro-Electro-Mechanical Systems (MEMS) gas sensor array and the Artificial Neural Network algorithm. The primary purpose of this study is to train the algorithm and assess the performance of the Ainos Flora in identifying vaginal infections. In addition, the primary outcome measures of this study, including sensitivity and specificity, will be used as a reference for the feasibility and sample size assessment of the next phase of pivotal clinical trials.

02

Conditions studied

  • Vaginal Infection
  • Vaginitis

Browse trials for

Keywords

  • E-Nose
03

In context

Vaginitis

98 studies on the registry are indexed under Vaginitis; 12 are open to participants now.

This study's planned enrollment of 120 is above the median of 108 across 71 interventional studies indexed under Vaginitis.

Browse Vaginitis studies →

Lead sponsor

This is the only study on the registry with Taiwan Carbon Nano Technology Corporation as lead sponsor.

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

04

Who can participate

Ages eligible
20 Years to 50 Years
Sexes eligible
Female
Accepts healthy volunteers
Yes

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Female, Age ≥20 to ≤50.
  • Have had sexual experience.
  • Fully understand the subject's process and be willing to undergo all study-related assessments and procedures.

Exclusion criteria

Exclusion Criteria:

Women who meet any of the following criteria by participant report will be excluded from the study:

  • During menstruation.
  • Have performed vaginal washing within three days.
  • Have been treated for vaginal infections within one week.
Terms in these criteria, in plain language(1)

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.

05

Study design

Phase
Not applicable
Primary purpose
Diagnostic
Allocation
Non-randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
120 participants (estimated)

Study arms

  • Experimental
    Bacterial infections

    The subject is infected with at least one of the following pathogens: Bacterial vaginosis (BV) / Escherichia coli / Trichomonas / Group B streptococcus / Chlamydia trachomatis / Neisseria gonorrhoeae

    Device: Vaginal swab for RT-PCR · Device: Vaginal swab for culture · Device: Metabolic gas signatures detected by Ainos Flora (operated by participant) · Device: Metabolic gas signatures detected by Ainos Flora (operated by medical staff)

  • Experimental
    Fungal infection :

    The subject is infected with Candida albicans only.

    Device: Vaginal swab for RT-PCR · Device: Vaginal swab for culture · Device: Metabolic gas signatures detected by Ainos Flora (operated by participant) · Device: Metabolic gas signatures detected by Ainos Flora (operated by medical staff)

  • Experimental
    Mixed infection

    Bacterial and fungal infections coexist.

    Device: Vaginal swab for RT-PCR · Device: Vaginal swab for culture · Device: Metabolic gas signatures detected by Ainos Flora (operated by participant) · Device: Metabolic gas signatures detected by Ainos Flora (operated by medical staff)

  • Experimental
    No infection

    Healthy participant

    Device: Vaginal swab for RT-PCR · Device: Vaginal swab for culture · Device: Metabolic gas signatures detected by Ainos Flora (operated by participant) · Device: Metabolic gas signatures detected by Ainos Flora (operated by medical staff)

Interventions

  • DeviceVaginal swab for RT-PCR

    Screening for Bacterial vaginosis (BV) / Trichomonas / Chlamydia trachomatis / Candida albicans

  • DeviceVaginal swab for culture

    Screening for Group B streptococcus / Neisseria gonorrhoeae / Escherichia coli

  • DeviceMetabolic gas signatures detected by Ainos Flora (operated by participant)

    The participant operates the Ainos Flora to collect signatures of metabolic gases in the vagina by herself.

  • DeviceMetabolic gas signatures detected by Ainos Flora (operated by medical staff)

    The medical staff operates the Ainos Flora to collect signatures of metabolic gases in the participant's vagina.

06

What researchers measure

Primary outcomes

  1. To assess the sensitivity and specificity of Ainos Flora in subjects compared to RT-PCR and culture groups in identifying the types of vaginitis.

    * Bacterial infection : Bacterial vaginosis (BV) / Escherichia coli / Trichomonas / Group B streptococcus / Chlamydia trachomatis / Neisseria gonorrhea * Fungal infection: Candida albicans * Mixed infection: Bacterial and fungal infections coexist * No infection: Healthy participant

    Time frame: Up to 6 months.

Secondary outcomes

  1. Assess the change in sensitivity as the number of subjects is changed.

    When the number of subjects reaches 30,60,90,120, input the collected gas data into the algorithm and calculate the sensitivity. We can then assess the change in sensitivity when the number of subjects changes from 30 to 60, 90, and 120.

    Time frame: Up to 6 months.

  2. Assess the change in specificity as the number of subjects is changed.

    When the number of subjects reaches 30,60,90,120, input the collected gas data into the algorithm and calculate the specificity. We can then assess the change in specificity when the number of subjects changes from 30 to 60, 90, and 120.

    Time frame: Up to 6 months.

07

Study locations

2 of 2 sites recruiting
08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

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

Started Oct 2022 (actual). Primary completion is estimated for Sep 2025, 35 months after the start.

Of 22 interventional studies with no phase under Vaginitis, half reached primary completion within 12 months of starting (the median), counting those still running; a quarter within 9 and three quarters within 35. This study's planned 35 months is above that.

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

Registered
Sep 21, 2022
First posted
Sep 28, 2022
StartActual
Oct 8, 2022
Primary completionEst.
Sep 2025
CompletionEst.
Oct 2025
Last update
Apr 10, 2024
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 Apr 10, 2024, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT05557318
Lead sponsor
Taiwan Carbon Nano Technology Corporation
Collaborators
Ainos, Inc. (f/k/a Amarillo Biosciences Inc.
Responsible party
Sponsor
First posted
Sep 28, 2022
Start date
Oct 8, 2022
Primary completion
Sep 2025 (estimated)
Completion
Oct 2025 (estimated)
Last update
Apr 10, 2024

Study contacts

Dr. Fung-Wei Chang
Contact
doc30666@gmail.com
886-2-87923311 ext. 12304
Dr. Fung-Wei Chang
principal investigator · Tri-Service General Hospital

Oversight

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

Interested in this study?

Eligibility is decided by the study team. Share this record with your doctor or contact the team directly.

Contact study team

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