# To Estimate the Efficacy of Treatment With TNFi as Monotherapy or Combination Therapy With MTX and Compare and Contrast Efficacy With Tofacitinib as Monotherapy and Combination Therapy in a Real World Setting.

> **NCT05576051** · — · COMPLETED · sponsor: **Pfizer** · enrollment: 9159 (actual)

## Conditions studied

- Rheumatoid Arthritis

## Interventions

- **OTHER:** patterns of use of combination therapy and monotherapy

## Key facts

- **NCT ID:** NCT05576051
- **Lead sponsor:** Pfizer
- **Sponsor class:** INDUSTRY
- **Phase:** —
- **Study type:** OBSERVATIONAL
- **Status:** COMPLETED
- **Start date:** 2015-06-04
- **Primary completion:** 2015-10-07
- **Final completion:** 2015-10-07
- **Target enrollment:** 9159 (ACTUAL)
- **Last updated:** 2025-12-23


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT05576051

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT05576051, "To Estimate the Efficacy of Treatment With TNFi as Monotherapy or Combination Therapy With MTX and Compare and Contrast Efficacy With Tofacitinib as Monotherapy and Combination Therapy in a Real World Setting.". Retrieved via AI Analytics 2026-06-26 from https://api.ai-analytics.org/clinical/NCT05576051. Licensed CC0.

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