New vaccine aims to shield sickle cell kids from deadly infections

NCT ID NCT07247188

Recruiting now ⭐️ VACCINE ⭐️ Sponsor: Sanofi Source: ClinicalTrials.gov ↗

First seen Jun 24, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This study tests a new 21-valent pneumococcal vaccine (PCV21) in 100 children and teens with sickle cell disease, aged 2 to 17. The goal is to see if it's safe and helps the body make antibodies better than the current 20-valent vaccine. Participants get one shot and are monitored for side effects and immune response.

What this could mean

Our plain-language read of the trial. This is informational only — not medical advice or a prediction.

Active substance
21-valent pneumococcal conjugate vaccine (PCV21)
What this could lead to
If successful, this vaccine could provide better protection against pneumococcal infections for children with sickle cell disease, who are at high risk.
What could go wrong
This is a phase 3 trial, but it's still relatively small (100 participants). The new vaccine may not prove more effective than the existing one, and side effects are possible.

This is an AI summary of the original study and may miss details. Read our disclaimer.

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Conditions

The condition(s) this trial relates to.

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Contacts and locations

Study contacts

  • Contact

    Email: •••••@•••••

Locations

  • Site # 2140001

    RECRUITING

    Santo Domingo, Dominican Republic

  • Site # 2140003

    RECRUITING

    Santo Domingo, Dominican Republic

  • Site # 8400001

    RECRUITING

    New Brunswick, New Jersey, 08901, United States

  • Site # 8400002

    RECRUITING

    Atlanta, Georgia, 30322, United States

  • Site # 8400003

    RECRUITING

    Omaha, Nebraska, 68114, United States

  • Site # 8400004

    RECRUITING

    Houston, Texas, 77030, United States

  • Site # 8400006

    RECRUITING

    Atlanta, Georgia, 30310, United States

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