A Study of AZD1222, a Vaccine for the Prevention of COVID-19 in Immunocompromised Adults (VICTORIA)

AstraZeneca

Status and phase: Terminated; Phase 4

Conditions: COVID-19, SARS-CoV-2

Treatments: Biological: AZD1222

Study type: Interventional

Funder types: Industry

Identifiers

NCT05057897

D8111C00010

Details and patient eligibility

About

The aim of this study is to assess the immunogenicity and safety of AZD1222 for prevention of COVID-19 in immunocompromised adults.

Full description

The purpose of this study is to demonstrate the immunogenicity and safety of AZD1222, AstraZeneca's approved ChAdOx1 vector vaccine against SARS-CoV-2, in SARS-CoV-2 seronegative immunocompromised individuals who are unvaccinated.

Enrollment: 34 patients

Sex: All

Ages: 18 to 130 years old

Volunteers: Accepts Healthy Volunteers

Inclusion criteria

1. Adult, ≥ 18 years at the time of signing the informed consent.
2. Cohort specific inclusion criteria:

Solid organ transplant

• Participants with heart, lung, kidney, or liver transplant, and are stable on immunosuppressants (defined as no change in dose in the previous 4 weeks).

Hematopoietic stem cell transplant

• Participants with autologous (up to 6 months after transplantation) or allogeneic stem cell transplant who are immunosuppressed, with no evidence of active graft-versushost disease, at least one month after the procedure.

Cancer patients on chemotherapy

• Participants with solid tumors (except breast cancer), histologically diagnosed, who were undergoing intravenous cytotoxic chemotherapy within the last 6 months, who received at least 1 cycle prior to cytotoxic chemotherapy, and have a life expectancy of longer than 3 months.

Chronic inflammatory conditions

• Participants with chronic inflammatory conditions, including those on immunosuppressant medications, can be recruited. The following conditions are specifically excluded: multiple sclerosis and peripheral demyelinating disease.

Primary immune deficiency

• Examples include combined granulomatous disorder, SCID, common variable immunodeficiency.

Immunocompetent:

• No confirmed or suspected immunosuppressive or immunodeficient state.
• No use of immunosuppressant medication within the past 1 month (≥ 20 mg per day of prednisone or its equivalent, given daily or on alternate days for ≥ 15 days within 30 days prior to administration of AZD1222). The following exceptions are permitted: topical/inhaled steroids or short-term oral steroids (course lasting ≤ 14 days).
• No receipt of immunoglobulins and/or any blood products within 3 months prior to administration of AZD1222 or expected receipt during the period of study follow up.
• No severe and/or uncontrolled cardiovascular disease, respiratory disease, gastrointestinal disease, liver disease, renal disease, endocrine disorder, and neurological illness, as judged by the Investigator.

Exclusion criteria

1. History of allergic disease or reactions likely to be exacerbated by any component of AZD1222.
2. Active infection with SARS-CoV-2 as confirmed locally by nucleic acid amplification test (e.g. RT-PCR).
3. Known current or past laboratory-confirmed SARS-CoV-2 infection.
4. Significant infection or other acute illness, including fever (temperature > 37.8°C) on the day prior to or day of first dosing.
5. Thrombocytopenia with platelet count ≤ 75,000 x 109/microliter based on complete blood count test at screening visit.
6. HIV-positive participants based on a positive ELISA test performed at screening visit.
7. History of cerebral venous sinus thrombosis (CVST).
8. Receipt of any vaccine (licensed or investigational) within 30 days prior to and after administration of AZD1222.

Trial design

Primary purpose: Prevention

Allocation: Non-Randomized

Interventional model: Single Group Assignment

Masking: None (Open label)

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34 participants in 6 patient groups

Cohort 1 - immunocompromised participants with solid organ transplant

Other group

Description:

Previously unvaccinated immunocompromised participants with solid organ transplant will receive a primary vaccination series with 3 IM doses of AZD1222 separated by 4 weeks and will be followed to the end of the study. The first dose will be administered on Day 1, the second dose will be administered 28 days after dose 1, and the third dose will be administered 28 days after dose 2.

Treatment:

Biological: AZD1222

Cohort 2 - immunocompromised participants with hematopoietic stem cell transplant

Other group

Description:

Previously unvaccinated immunocompromised participants with hematopoietic stem cell transplant will receive a primary vaccination series with 3 IM doses of AZD1222 separated by 4 weeks and will be followed to the end of the study. The first dose will be administered on Day 1, the second dose will be administered 28 days after dose 1, and the third dose will be administered 28 days after dose 2.

Treatment:

Biological: AZD1222

Cohort 3 - immunocompromised participants with solid organ cancer receiving cytotoxic chemotherapy

Other group

Description:

Previously unvaccinated immunocompromised participants with solid organ cancer receiving cytotoxic chemotherapy will receive a primary vaccination series with 3 IM doses of AZD1222 separated by 4 weeks and will be followed to the end of the study. The first dose will be administered on Day 1, the second dose will be administered 28 days after dose 1, and the third dose will be administered 28 days after dose 2.

Treatment:

Biological: AZD1222

Cohort 4 - immunocompromised participants with chronic inflammatory disorders

Other group

Description:

Previously unvaccinated immunocompromised participants with chronic inflammatory disorders will receive a primary vaccination series with 3 IM doses of AZD1222 separated by 4 weeks and will be followed to the end of the study. The first dose will be administered on Day 1, the second dose will be administered 28 days after dose 1, and the third dose will be administered 28 days after dose 2.

Treatment:

Biological: AZD1222

Cohort 5 - immunocompromised participants with primary immunodeficiency

Other group

Description:

Previously unvaccinated immunocompromised participants with primary immunodeficiency will receive a primary vaccination series with 3 IM doses of AZD1222 separated by 4 weeks and will be followed to the end of the study. The first dose will be administered on Day 1, the second dose will be administered 28 days after dose 1, and the third dose will be administered 28 days after dose 2.

Treatment:

Biological: AZD1222

Cohort 6 - immunocompetent participants

Other group

Description:

Previously unvaccinated immunocompetent participants will receive a primary vaccination series with 2 IM doses of AZD1222 separated by 4 weeks, followed by a booster dose of AZD1222 administered 6 months after the first dose. The first dose will be administered on Day 1, the second dose will be administered 28 days after dose 1. Participants will receive a third dose booster 6 months after dose 1 and will continue to be followed to the end of the study.

Treatment:

Biological: AZD1222