Development of technology for prediction of vasovagal reaction on blood donation by continuous monitoring using laser Doppler flowmetry

Development of technology for prediction of vasovagal reaction on blood donation by continuous monitoring using laser Doppler flowmetry - Developmental study on prediction of VVR using LDF

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

JPRN

Registry ID

JPRN-UMIN000034874

Enrollment

300

Registered

2018-11-14

Start date

2018-11-05

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

Vasovagal reaction

Interventions

Arrangement of speed on extracorporeal circulation Posture change of a donor (Flatting donor chair)

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: Platelet apheresis donor

Exclusion criteria

Exclusion criteria: Subjects who are deferred by pre-donation examination

Design outcomes

Primary

Measure	Time frame
Reduction of VVR cases	—

Secondary

Measure	Time frame
Development of preventive procedures for VVR	—

Countries

Japan

Contacts

Public ContactTetsu Yamamoto

Hokkaido Red Cross Blood Center General Affairs

y.tetsu@hokkaido.bc.jrc.or.jp0116136121

Outcome results

None listed

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