---
title: COVID-19 Vaccine Confidence Among Pregnant Women and Mothers
nct_id: NCT04694664
overall_status: COMPLETED
sponsor: Pregistry
study_type: OBSERVATIONAL
primary_condition: Pregnancy Related
countries: United States
canonical_url: "https://parkinsonspathways.com/agent/trials/NCT04694664.md"
clinicaltrials_gov: "https://clinicaltrials.gov/study/NCT04694664"
ct_last_update_post_date: 2021-01-05
last_seen_at: "2026-05-12T06:36:17.485Z"
source: ClinicalTrials.gov (mirrored, no enrichment)
---
# COVID-19 Vaccine Confidence Among Pregnant Women and Mothers

**Official Title:** Vaccine Confidence Among Pregnant Women and Mothers During the COVID-19 Pandemic

**NCT ID:** [NCT04694664](https://clinicaltrials.gov/study/NCT04694664)

## Key Facts

- **Status:** COMPLETED
- **Study Type:** OBSERVATIONAL
- **Target Enrollment:** 18000
- **Lead Sponsor:** Pregistry
- **Collaborators:** Harvard School of Public Health (HSPH)
- **Conditions:** Pregnancy Related, Mothers
- **Start Date:** 2020-10-01
- **Completion Date:** 2020-12-01
- **CT.gov Last Update:** 2021-01-05

## Brief Summary

The purpose of this study is to assess the level of vaccine confidence and influencers among pregnant women and mothers of school-aged children during the COVID-19 pandemic.

## Detailed Description

The WHO has listed "vaccine hesitancy" as one of the top threats to global health.

The COVID-19 pandemic has triggered the need to vaccinate worldwide as soon as a safe and efficacious vaccine becomes available. However preliminary data show that, on average, only 50% to 66% of US adults would be willing to receive COVID-19 vaccination when it becomes available, a percentage lower than what is required for herd immunity to control the pandemic. Furthermore, there is a pressing need to vaccinate children to reopen schools and keeping them safe, as well as to immunize pregnant women through vaccination programs since they constitute a vulnerable population. Vaccine confidence among pregnant women and mothers of school-aged children during the period of COVID-19 pandemic is unknown, leading to an important gap of knowledge that may hinder the upcoming global COVID-19 vaccination scale-up effort. It is therefore of critical importance to assess the level of vaccine confidence and influencers among pregnant women and mothers of school-aged children during the COVID-19 pandemic.

The international nature of the proposed survey will allow the evaluation of vaccine confidence and its influencers among pregnant women and mothers of school-aged children on a global level. Therefore, social and geographic characteristics from different countries and cultures will be available for comparison. The resulting knowledge will be relevant to a large percentage of the world's population. Any country in the world can participate.

## Eligibility

- **Minimum age:** 18 Years
- **Maximum age:** 65 Years
- **Sex:** FEMALE
- **Healthy Volunteers:** Yes

```
Inclusion Criteria:

* Pregnant women or women who have at least one child younger than 18 years of age. Able to give electronic informed consent

Exclusion Criteria:

* \<18 years of age
```

## Arms

- **Pregnant Women** — Pregnant women who are 18 years of age or older.
- **Post-partum women** — Women who have at least one child younger than 18 years of age.

## Interventions

- **This is an online survey with no intervention.** (OTHER) — As this is an online survey about health and wellbeing, there is no intervention.

## Primary Outcomes

- **Percentage of acceptance of a COVID-19 vaccine** _(time frame: up to 2 months)_ — This outcome will evaluate the hesitancy or acceptance to a COVID-19 vaccine

## Locations (1)

- Pregistry, Los Angeles, California, United States

## Recent Field Changes (last 30 days)

- `status.overallStatus` — added _(2026-05-12)_
- `status.primaryCompletionDate` — added _(2026-05-12)_
- `status.completionDate` — added _(2026-05-12)_
- `status.lastUpdatePostDate` — added _(2026-05-12)_
- `design.enrollmentCount` — added _(2026-05-12)_
- `eligibility.criteria` — added _(2026-05-12)_
- `eligibility.minAge` — added _(2026-05-12)_
- `eligibility.maxAge` — added _(2026-05-12)_
- `eligibility.sex` — added _(2026-05-12)_
- `outcomes.primary` — added _(2026-05-12)_
- `armsInterventions.arms` — added _(2026-05-12)_
- `armsInterventions.interventions` — added _(2026-05-12)_
- `sponsor.lead` — added _(2026-05-12)_
- `sponsor.collaborators` — added _(2026-05-12)_
- `results.hasResults` — added _(2026-05-12)_
- `locations.pregistry|los angeles|california|united states` — added _(2026-05-12)_

---

*Canonical: https://parkinsonspathways.com/agent/trials/NCT04694664.md*  
*Source data (authoritative): https://clinicaltrials.gov/study/NCT04694664*  
*This page is a raw mirror with no AI summary, no editorial enrichment, and no Parkinson's-specific filtering.*