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COVID-19 vaccine study reveals immune response in people with HIV

NCT ID NCT06731127

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Recruitment status, easiest to join first

Recruiting now
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 This study
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 Results may not be published yet.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
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Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study examined how the COVID-19 vaccine affects the immune system in people with HIV compared to those without HIV. Researchers followed 75 participants aged 55 and older for 48 weeks, taking blood and saliva samples. The goal was to understand vaccine effectiveness and any changes in HIV levels, but no new treatment or vaccine was given.

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.

Participants

75 people

The number who actually took part.

Started

Apr 2021

Finished

Dec 2022

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.

Who is studied

People diagnosed with HIV (1+ year), 55 years of age or older, on antiretroviral therapy for 1+ year with good general health as per medical history and lab tests. HIV negative individuals, 55 years old or older with stable clinical status, without acute illnesses as per medical history and lab tests will also be recruited for control. Blood and saliva sampling at described timepoint prior to 1st dose of COVID-19 vaccination and after the second dose of the COVID-19 vaccination. Evaluations will be taken at screening, baseline and at 8 additional time points during the study. 75 participants will be followed over 48 weeks.

Ages

55 years and older

Sex

Anyone

Healthy volunteers

Accepted

You do not need to have the condition being studied to take part.

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: * Participants will fall into any of the HIV-positive arms or the HIV-negative control arm. Inclusion criteria for HIV-positive participants are: * Ability to provide signed written informed consent * Documented HIV diagnosis for 1+ year * Antiretroviral therapy for 1+ year * 55 years of age or older * Good general health as shown by medical history and screening laboratory tests at the screening visit: * Hemoglobin ≥ 85 g/L White blood cell (WBC) count = 3300 to 12,000 cells/mm3 * Total lymphocyte count ≥ 800 cells/mm3 * Platelets = 50,000 to 550,000/mm3 * Chemistry panel: alanine aminotransferase (ALT), aspartate aminotransferase (AST), and alkaline phosphatase \< 5 times the institutional upper limit of normal (ULN); creatinine (Cr) ≤ institutional upper limit of normal; creatine phosphokinase (CPK) ≤ 2 times the institutional upper limit of normal not related to physical exertion Inclusion criteria for HIV-negative participants are: * Ability to provide signed written informed consent * Negative HIV test at the screening visit * 55 years of age or older * Stable clinical status and absence of acute illnesses as shown by medical history and screening laboratory tests at the screening visit: * Hemoglobin ≥ 85 g/L White blood cell (WBC) count = 3300 to 12,000 cells/mm3 * Total lymphocyte count ≥ 800 cells/mm3 * Platelets = 50,000 to 550,000/mm3 * Chemistry panel: alanine aminotransferase (ALT), aspartate aminotransferase (AST), and alkaline phosphatase \< 5 times the institutional upper limit of normal (ULN); creatinine (Cr) ≤ institutional upper limit of normal; creatine phosphokinase (CPK) ≤ 2 times the institutional upper limit of normal not related to physical exertion Exclusion Criteria: * There will be no exclusion criteria based on gender/gender identity, ethnoracial composition, language, socioeconomic status, mode of HIV acquisition or sexual orientation/identity. Any participant who requires language interpretation can and will be accommodated for by the participation of translators, either at the patient's choice and/or with the assistance of the translator services provided by local ASO organizations. Exclusion criteria include the following: * Participants who would have difficulty participating in a trial due to non-compliance * Participants with a history of anaphylaxis reaction to the COVID-19 vaccine components * Participants with any of the following abnormal laboratory results at the screening visit: * Hemoglobin \< 85 g/L * Lymphocyte count \< .750 X109/L * Platelet count \< 50 X109/L or \> 550 X109/L * AST or ALT \> 5X the upper limit of normal * Creatinine \> 250 µmol/L * Participant with a malignancy or undergoing chemotherapy * Participant with other significant underlying disease (non-HIV-1) that might impinge upon disease progression or death * Active infection with hepatitis virus (HAV, HBV, HCV) or tuberculosis * Prior surgery or radiation therapy within 30 days of study screening or receipt of any other experimental compound within 30 days of signing informed consent * Any concurrent condition requiring the continued use of immunoglobulin, antineoplastic agents, glucocorticoids (other than corticosteroid nasal spray for allergic rhinitis; topical or ophthalmic corticosteroids for acute, uncomplicated dermatitis or conjunctivitis; over the counter medications for acute, uncomplicated dermatitis for treatment period not longer than 14 days) or other immunomodulator medications (other than NSAIDS which will be allowed for any length of time) * Receipt of any blood product within 3 months prior to screening * Receipt of any vaccine within 1 month prior to screening * Active drug or alcohol use/dependence that, in the opinion of the investigator, would interfere with adherence to study requirements * Any illness or conditions including acute illnesses that, in the opinion of the investigator, may affect the safety of the participant or the evaluation of any study endpoints * Any other conditions judged by the investigator that would limit the evaluation of a participant * Positivity for sexually transmitted infections at the screening visit * Use of any unproven registered and unregistered treatments for COVID-19; Administration of immunoglobulins and/ or any blood products within the three months preceding the planned administration of the vaccine candidate * Any confirmed or suspected immunosuppressive or immunodeficient state (except HIV infection for Group-3), asplenia, recurrent severe infections and chronic use (more than 14 days) immunosuppressant medication within the past 6 months (topical steroids are allowed) * For HIV-negative participants: immune-compromising conditions or on medication which suppresses the immune response.

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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

Locations

  • Maple Leaf Medical Clinic

    Toronto, Ontario, M5G 1K2, Canada

More trials for these conditions

Other studies related to the condition(s) this trial covers.