Randomized open-labbel non-inferiority trial of paracetamol or celecoxib for patients with chronic low back pain - multicenter longitudinal study -

Randomized open-labbel non-inferiority trial of paracetamol or celecoxib for patients with chronic low back pain - multicenter longitudinal study - - The effects on two conventional medication for chronic low back pain

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

JPRN

Registry ID

JPRN-UMIN000039719

Enrollment

186

Registered

2020-03-05

Start date

2020-04-01

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

Chronic low back pain

Interventions

Oral administration of acetaminophen 1,000 mg/time, three times a day, for 4 weeks Oral administration of celecoxib 100 mg/time, two times a day, for 4 weeks

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: 1) The subjects who complain of following chronic low back pain. 2) The subjects who can agree to participate in this study.

Exclusion criteria

Exclusion criteria: 1) The subjects just seek second opinion. 2) History of malignant disease. 3) The subjects with neuropathic pain. 4) The subjects with surgical histories within six month. 5) The subjects considered inappropriate by the attending doctor.

Design outcomes

Primary

Measure	Time frame
Bio-equivalence of the effects on two conventional medications for pain reduction	—

Countries

Japan

Contacts

Public ContactKenji Miki

Hayaishi Hospital Center for pain management

hisyohayaishi@gmail.com06-6771-1227

Outcome results

None listed

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