# ULTRACET (Tramadol Hydrochloride and Acetaminophen) for the Treatment of Rheumatoid Arthritis Pain.

> **NCT00246168** · PHASE4 · COMPLETED · sponsor: **Janssen Korea, Ltd., Korea** · enrollment: 277 (actual)

## Conditions studied

- Arthritis, Rheumatoid

## Interventions

- **DRUG:** tramadol hydrochloride + acetaminophen

## Key facts

- **NCT ID:** NCT00246168
- **Lead sponsor:** Janssen Korea, Ltd., Korea
- **Sponsor class:** INDUSTRY
- **Phase:** PHASE4
- **Study type:** INTERVENTIONAL
- **Status:** COMPLETED
- **Start date:** —
- **Primary completion:** —
- **Final completion:** 2005-06
- **Target enrollment:** 277 (ACTUAL)
- **Last updated:** 2010-11-30


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT00246168

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT00246168, "ULTRACET (Tramadol Hydrochloride and Acetaminophen) for the Treatment of Rheumatoid Arthritis Pain.". Retrieved via AI Analytics 2026-06-03 from https://api.ai-analytics.org/clinical/NCT00246168. Licensed CC0.

---

*[Clinical trials dataset](/datasets/clinical-trials) · CC0 1.0*