Pulmonary function among COVID-19 patients in home isolation program

Status

Active, not recruiting

Phases

Unknown

Study type

Observational

Source

TCTR

Registry ID

TCTR20211121001

Enrollment

245

Registered

2021-11-21

Start date

2021-12-01

Completion date

Unknown

Last updated

2026-08-03

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

Conditions

COVID-19 COVID-19 Pulmonary functions Pulmonary function test Chest X-ray

Interventions

COVID-19 patients in home isolation program confirmed by RT-PCR SAR-CoV-2 test who aged 18 years or more and recovery from COVID-19.

Screening

COVID-19 patients

Eligibility

Sex/Gender

All

Age

18 Years to No maximum

Inclusion criteria

Inclusion criteria: 1. COVID-19 patients in home isolation program confirmed by RT-PCR SAR-CoV-2 test, 2. Age 18 years or more, 3. Recovery from COVID-19

Exclusion criteria

Exclusion criteria: 1. Inability to perform pulmonary function test (spirometry), 2. Contraindication for pulmonary function test (spirometry), 3. Inability to commucation

Design outcomes

Primary

Measure	Time frame
Forced vital capacity (FVC) At the beginning of the study and 3 months later %predicted ,Forced vital capacity (FVC) At the beginning of the study and 3 months later Liters,Forced expiratory volume in 1 second (FEV1) At the beginning of the study and 3 months later %predicted,Forced expiratory volume in 1 second (FEV1) At the beginning of the study and 3 months later Liters,FEV1 to FVC At the beginning of the study and 3 months later %	—

Measure

Time frame

Forced vital capacity (FVC) At the beginning of the study and 3 months later %predicted ,Forced vital capacity (FVC) At the beginning of the study and 3 months later Liters,Forced expiratory volume in 1 second (FEV1) At the beginning of the study and 3 months later %predicted,Forced expiratory volume in 1 second (FEV1) At the beginning of the study and 3 months later Liters,FEV1 to FVC At the beginning of the study and 3 months later %

—

Secondary

Measure	Time frame
Prevalence of abnormal chest X-ray findings At the beginning of the study %	—

Countries

Thailand

Contacts

Public ContactNarongkorn Saiphoklang

Thammasat University

M_narongkorn@hotmail.com6629269794

Outcome results

None listed

Source: TCTR (via WHO ICTRP) · Data processed: Aug 9, 2026