The relationship between drug challenge test and cerebral autoregulation in Patients with Chronic Pain

The relationship between drug challenge test and cerebral autoregulation in Patients with Chronic Pain - DCT and cerebral autoregulation

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

JPRN

Registry ID

JPRN-UMIN000008098

Enrollment

Registered

2012-06-04

Start date

2010-12-01

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

Patients with Chronic Pain

Interventions

Measurement of cerebral blood flow velocity by transcranial Doppler ultrasonography in patients with chronic pain Measurement of cerebral blood flow velocity by transcranial Doppler ultrasonography in

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: 1) Patients of 20 years or more with chronic pain 2) The patients who take drug challenge test 3) The patients who agreed to this study and wrote informed consent

Exclusion criteria

Exclusion criteria: 1) Patients who cannot apply noninvasive arterial blood pressure monitor 2) Patients who have past history of a rash by electrode and ultrasound's jelly

Design outcomes

Primary

Measure	Time frame
Alteration in dynamic cerebral autoregulation	—

Countries

Japan

Outcome results

None listed

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