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Which pneumonia vaccine works best for lymphoma patients? new study aims to find out

NCT ID NCT04460235

Disease control Sponsor: Poitiers University Hospital Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now This study
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 25, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This study compares two pneumococcal vaccination strategies in 160 adults with lymphoma who have had chemotherapy. One group gets two vaccines (Prevenar 13 followed by Pneumovax 23), while the other gets a single newer vaccine (Prevenar 20). Researchers will measure immune responses at several time points to see which approach provides better protection against pneumococcal disease. The goal is to improve vaccination guidelines for this vulnerable population.

What this could mean

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

Active substance
pneumococcal vaccines (Prevenar 13, Pneumovax 23, and Prevenar 20)
What this could lead to
If successful, this could show which vaccine schedule offers better protection against serious pneumococcal infections for people with lymphoma.
What could go wrong
This is a phase 4 study with 160 participants, so results may not apply to all patients. The immune response in lymphoma patients can be weak, and the study compares two strategies rather than testing a new drug.

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

Study facts

What this study's own registry entry says, in plain language.

Phase

Phase 4

Runs after approval, following long-term safety and how well the treatment works in everyday use.

Participants

About 160 people

The number the study aims to enrol. It can still change while the study runs.

Started

Sep 2021

Expected to finish

Jun 2029

An estimate. End dates often move.

Lead sponsor

Other sponsor

The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Ages

18 years and older

Sex

Anyone

Healthy volunteers

Not accepted

This study is not open to healthy volunteers. The entry requirements below say who it is open to.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: * Patient ≥ 18 year-old. * AND medical follow-up in hematology unit * AND had received a first course of chemotherapy for diffuse large B cell lymphoma or for follicular lymphoma * Life expectancy \> 6 months. * Negative pregnancy test. * Having signed the consent form. * Having an health insurance. Exclusion Criteria: * Receiving monoclonal antibodies or biotherapies altering the immune response, other than anti-CD20 antibodies in the chemotherapy protocol. * Uncontrolled bacterial, viral or fungal infection less than 7 days. * Previous vaccination with PCV13 or PPV23 (unless PCV13 was administered in childhood. The last injection must be performed at least five years ago). * Preexisting condition that altered the immune response: splenectomy, HIV, primary or secondary immune deficiency, nephrotic syndrome, sickle cell anemia, autoimmune disorder, solid organ transplantation, immunosuppressive drugs or biotherapy not included in the chemotherapy. * Patient who already received chemotherapy for malignancy in the previous 2 years before the inclusion. * Major blood clotting disorders preventing intramuscular injection. * Medical history of anaphylactic reaction to vaccination. * Known allergy to one of the vaccine components. * Involvement to another vaccine biomedical research. * Protected person. * Pregnant women or women of childbearing age without appropriate contraceptive measures. * Perfusion of polyvalent immunoglobulins during follow-up. * Participants with hypersensitivity to aluminum phosphate, phenol or CRM197 protein, protein derived from Corynebacterium diphtheria.

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Conditions

The condition(s) this trial relates to.

diffuse large B-cell lymphoma follicular lymphoma lymphoma lymphoma, non-Hodgkin, familial non-Hodgkin lymphoma streptococcal pneumonia pneumococcal infection prevention target

As listed by the trial registrant

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

Lymphoma, non-Hodgkin Streptococcus pneumoniae Vaccine

How to take part

Only the study team decides who joins. These are the ways to reach them.

  1. The places running it

    5 sites. The list below names each one and where it is.

  2. The official record

    ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.

    Open the record ↗

  3. A doctor treating you

    A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.

Contacts and locations

Locations

  • CHU Bordeaux

    TERMINATED

    Bordeaux, France

  • CHU Limoges

    RECRUITING

    Limoges, France

  • CHU Poitiers

    RECRUITING

    Poitiers, France

  • CHU Tours

    RECRUITING

    Tours, France

  • Ch Perigueux

    RECRUITING

    Périgueux, France

  • Chu Angers

    RECRUITING

    Angers, France

  • Chu Nantes

    TERMINATED

    Nantes, France

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