Duc Lam Trung, Viet Nam
Pasteur institute Department of Disease Control and PreventionPresenter of 1 Presentation
STUDY PARTICIPANT WITHDRAWALS: LESSONS LEARNT FROM A VACCINE TRIAL IN INFANTS IN HO CHI MINH CITY, VIETNAM (ID 1105)
Abstract
Background
Subject recruitment and retention are crucial factors contributing to the success of clinical trials. We describe the experience from a clinical trial of
pneumococcal conjugate vaccines currently underway in Ho Chi Minh City.
Methods
Subject recruitment and retention are crucial factors contributing to the success of clinical trials. We describe the experience from a clinical trial of
pneumococcal conjugate vaccines currently underway in Ho Chi Minh City.
Results
2,501 subjects were recruited at 2 months of age. To date 1,612 subjects have completed their final 24 month visit. The last 24 month visit is due in May 2020. We have a current withdrawal rate of 7.8%. The most common reason for withdrawal is moving outside the study area. Withdrawal rates and reasons by study group will be presented at the conference
Conclusions
Recruiting subjects who intend to remain in the study area is a challenge for clinical trials involving follow up of children over a number of years. Involving staff from subjects' local health clinics helps to keep the withdrawal rate down.
Author Of 1 Presentation
STUDY PARTICIPANT WITHDRAWALS: LESSONS LEARNT FROM A VACCINE TRIAL IN INFANTS IN HO CHI MINH CITY, VIETNAM (ID 1105)
Abstract
Background
Subject recruitment and retention are crucial factors contributing to the success of clinical trials. We describe the experience from a clinical trial of
pneumococcal conjugate vaccines currently underway in Ho Chi Minh City.
Methods
Subject recruitment and retention are crucial factors contributing to the success of clinical trials. We describe the experience from a clinical trial of
pneumococcal conjugate vaccines currently underway in Ho Chi Minh City.
Results
2,501 subjects were recruited at 2 months of age. To date 1,612 subjects have completed their final 24 month visit. The last 24 month visit is due in May 2020. We have a current withdrawal rate of 7.8%. The most common reason for withdrawal is moving outside the study area. Withdrawal rates and reasons by study group will be presented at the conference
Conclusions
Recruiting subjects who intend to remain in the study area is a challenge for clinical trials involving follow up of children over a number of years. Involving staff from subjects' local health clinics helps to keep the withdrawal rate down.