# Changes in MTX-PG Concentrations During Subcutaneous MTX Therapy in Patients With Rheumatoid Arthritis(COSMOS Study)

> **NCT06913907** · PHASE4 · RECRUITING · sponsor: **Keio University** · enrollment: 100 (estimated)

## Conditions studied

- Rheumatoid Arthritis (RA)

## Interventions

- **DRUG:** Methotrexate (MTX)

## Key facts

- **NCT ID:** NCT06913907
- **Lead sponsor:** Keio University
- **Sponsor class:** OTHER
- **Phase:** PHASE4
- **Study type:** INTERVENTIONAL
- **Status:** RECRUITING
- **Start date:** 2025-04-10
- **Primary completion:** 2027-12-31
- **Final completion:** 2027-12-31
- **Target enrollment:** 100 (ESTIMATED)
- **Last updated:** 2025-04-06

## Collaborators

- [object Object]
- [object Object]

## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT06913907

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT06913907, "Changes in MTX-PG Concentrations During Subcutaneous MTX Therapy in Patients With Rheumatoid Arthritis(COSMOS Study)". Retrieved via AI Analytics 2026-06-24 from https://api.ai-analytics.org/clinical/NCT06913907. Licensed CC0.

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