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Completed Early Phase 1 Interventional Accepts healthy volunteers Results available

An Exploratory Study of ZB-06 as a Vaginal Contraceptive Film

ClinicalTrials.gov ID: NCT04731818

Public ClinicalTrials.gov record NCT04731818. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.

ClinicalTrials.gov public records Last synced Sep 7, 2026, 3:39 PM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Official title

An Exploratory Phase 1 Mechanism-of-action Study of ZB-06, a Vaginal Film Containing HC4-N, an Anti-sperm Monoclonal Antibody.

Brief summary

Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.

This is an early Phase 1 study to establish proof-of-concept by determining whether an intravaginal film containing a human contraceptive antibody (ZB-06) shows promise to provide contraceptive efficacy using the post-coital test, a surrogate measure of efficacy. The study will also evaluate the safety and pharmacokinetics of ZB-06.

Study identification

NCT ID
NCT04731818
Recruitment status
Completed
Study type
Interventional
Phase
Early Phase 1
Lead sponsor
KBio Inc
Industry
Enrollment
20 participants

Conditions and interventions

Conditions

Interventions

Biological

Eligibility (public fields only)

Age range
18 Years to 50 Years
Sex
All
Healthy volunteers
Accepts healthy volunteers

This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.

Study timeline

Start date
Feb 7, 2021
Primary completion
Jan 24, 2022
Completion
Feb 23, 2022
Last update posted
Jan 14, 2025

2021 – 2022

United States locations

U.S. sites
1
U.S. states
1
U.S. cities
1
Facility City State ZIP Site status
Eastern Virginia Medical School Norfolk Virginia 23507

Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.

About this trial record page

What this page shows
Public field values for ClinicalTrials.gov record NCT04731818, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
What this page does not do
No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
Where the data comes from
Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
Last refresh
Last update posted Jan 14, 2025 · Synced Sep 7, 2026

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Open the official record

The complete protocol, eligibility criteria, and contact information for NCT04731818 live on ClinicalTrials.gov.

View official ClinicalTrials.gov record →