# Formation of Antibodies and Subsequent Prediction of Clinical Response in Patients With Rheumatoid Arthritis Treated With Four TNF Blocking Agents

> **NCT01691014** · — · TERMINATED · sponsor: **Pfizer** · enrollment: 79 (actual)

## Conditions studied

- Rheumatoid Arthritis (RA)

## Interventions

- **OTHER:** non-interventional study
- **OTHER:** non-interventional study
- **OTHER:** non-interventional study
- **OTHER:** non-interventional study

## Key facts

- **NCT ID:** NCT01691014
- **Lead sponsor:** Pfizer
- **Sponsor class:** INDUSTRY
- **Phase:** —
- **Study type:** OBSERVATIONAL
- **Status:** TERMINATED
- **Start date:** 2013-04
- **Primary completion:** 2015-01
- **Final completion:** 2015-01
- **Target enrollment:** 79 (ACTUAL)
- **Why stopped:** The study was terminated on 10DEC2014 due to the inability to enroll the planned number of patients. There were no safety concerns.
- **Last updated:** 2016-12-29


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT01691014

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT01691014, "Formation of Antibodies and Subsequent Prediction of Clinical Response in Patients With Rheumatoid Arthritis Treated With Four TNF Blocking Agents". Retrieved via AI Analytics 2026-06-02 from https://api.ai-analytics.org/clinical/NCT01691014. Licensed CC0.

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