Evaluation of endogenous analgesia in patients with chronic low back pain

Evaluation of endogenous analgesia in patients with chronic low back pain - Evaluation of endogenous analgesia in patients with chronic low back pain

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

JPRN

Registry ID

JPRN-UMIN000027087

Enrollment

Registered

2017-04-25

Start date

2017-04-25

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

chronic low back pain

Interventions

conditioned pain modulation test stimulation1:pressure, 30 seconds condition stimulation :cold water, 1 minutes test stimulation2:pressure, 30 seconds

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: Patients:30 patients with chronic low back pain . Control: 30 healthy volunteers. Informed concent is essential.

Exclusion criteria

Exclusion criteria: 1. Healthy volunteers cannot have any chronic pain. 2. Who cannnot understand the protocol of this study because of psyciatric disorder or dimentia. 3. Who cannot tolerate the stimulation.

Design outcomes

Primary

Measure	Time frame
Change of Numerical Rating Scale	—

Countries

Japan

Contacts

Public ContactYuko Nakano

Fukushima Medical University Department of Anesthesiology

yamayu09@fmu.ac.jp024-547-1111

Outcome results

None listed

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