The safety and efficacy of COVID-19 vaccines among lung transplant recipients

The safety and efficacy of COVID-19 vaccines among lung transplant recipients: Non-randomised controlled cohort study - The safety and efficacy of COVID-19 vaccines among lung transplant recipients

Status

Recruiting

Phases

Phase 4

Study type

Observational

Source

JPRN

Registry ID

JPRN-jRCT1021210009

Enrollment

Registered

2021-06-04

Start date

2021-06-04

Completion date

Unknown

Last updated

2026-06-29

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

lung transplant recipients lung transplant, solid organ transplant, COVID-19

Interventions

no interventions

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: Lung transplant recipients followed at Tohoku University Hospital who fulfilled the following criteria 1-5: (1) 6 months after lung transplant (2) two-time COVID-19 vaccination (3) no history of COVID-19 infection (4) 20 years old or above (5) written informed consent obtained Controls followed at Tohoku University Hospital or Tohoku Kosai Hospital who fulfilled the following criteria 1-4: (1) no history of transplantation and immunosuppressive therapy (2) two-time COVID-19 vaccination (3) no history of COVID-19 infection (4) 20 years old or above (5) written informed consent obtained

Exclusion criteria

Exclusion criteria: (1) informed consent unobtained (2) aged 19 years old or below

Design outcomes

Primary

Measure	Time frame
The efficacy of COVID-19 vaccine	—

Secondary

Measure	Time frame
The safety of COVID-19 vaccine	—

Contacts

Public ContactTakashi Hirama

Tohoku University Hospital

takashi.hirama.b5@tohoku.ac.jp+81-22-717-7000

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 3, 2026