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Drug registry study to evaluate the effectiveness of tramadol / acetaminophen combination tablets as pain management for patient with rheumatoid arthritis.

Drug registry study to evaluate the effectiveness of tramadol / acetaminophen combination tablets as pain management for patient with rheumatoid arthritis. - Research for an appropriate use of tramadol / acetaminophen combination tablets for patient with rheumatoid arthritis.

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
JPRN
Registry ID
JPRN-UMIN000012364
Enrollment
31
Registered
2013-11-25
Start date
2014-01-10
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

rheumatoid arthritis

Interventions

Tramadol / acetaminophen combination tablets will be administrated by 1 tablets / time/ qid and every 4 hours for pain relief. Step by step dose up administration schedule over 4weeks will be applied
*Day1-Day7(1 tablet/day, after night meal) *Day8-Day14(1 tabletX2 times /day, after morning and night meal) *Day15-Day21(1 tabletX3 times /day, after morning, afternoon and night meal *Day22-Day30(

Sponsors

Osaka City University Medical School, Department of Orthopedic Surgery
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: *Rheumatoid arthritis (RA) *Duration of RA > = 6 months *Patient who are recieving standard RA treatment *Visual analogue scale >= 10 mm at baseline *Patient who shows insufficient pain relief to non-opioid analgesic treatment or who does not meet to use non-opioid analgesic. *Steinbrocker functional category = < III (because of clinical outcome evaluation in case of Steinbrocker functional category IV)

Exclusion criteria

Exclusion criteria: *Patient who received surgery within 3 months *Patient who have history of bone fracture (including non-traumatic fracture). *Patient who had a significant unstable RA disease status. *Patients who is addiction for alcohol, narcoleptic agents, opioids and psychotropic agents) *Patient who is taking MAO inhibitors or discontinue MAO inhibitors within 14 days *Patient who had a history of seizures *Patient who had peptic ulcer *Patient who had severe hematological disorder *Patient who had a severe liver function disorder *Patient who had a severe renal function disorder *Patient who had a severe respiratory disorder. *Patient who had a history of aspirin asthma *Patient who had a history of hypersensitivity for tramadol or acetaminophen *Patient who is taking Selegiline *Patient who had a history of treatment by opioids within 3 months *Patient who was pregnant, planning on becoming pregnant or breast feeding

Design outcomes

Primary

MeasureTime frame
Mean change from baseline of Visual Analogue Scale (VAS)

Secondary

MeasureTime frame
1.Pain assessment: Mean value of Visual Analogue Scale(VAS), Mean change ratio from baseline of Visual Analogue Scale(VAS) 2. Disease activity assessment: Mean value of DAS28 and SDAI, Mean change and change ratio from baseline of DAS28 and SDAI. 3. Patients reported outcome: Mean value of MHAQ and EQ-5D, Mean change and change ratio from baseline of MHAQ and EQ-5D. 4. Quality of sleep: Mean value of Visual Analogue Scale(VAS), Mean change ratio from baseline of Visual Analogue Scale(VAS) 5. Opioid related adverse event 6. Treatment status: Treatment discontinuation rate.

Countries

Japan

Contacts

Public ContactMasahiro Tada

Osaka City University Medical School Department of Orthopedic Surgery

m-tada@med.osaka-cu.ac.jp06-6645-3851

Outcome results

None listed

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