# Ultrarunners Longitudinal TRAcking Study (ULTRA)

> **NCT02014038** · — · COMPLETED · sponsor: **Stanford University** · enrollment: 2452 (actual)

## Conditions studied

- Arthritis
- Osteoporosis
- Injuries

## Interventions

_None listed._

## Key facts

- **NCT ID:** NCT02014038
- **Lead sponsor:** Stanford University
- **Sponsor class:** OTHER
- **Phase:** —
- **Study type:** OBSERVATIONAL
- **Status:** COMPLETED
- **Start date:** 2011-05
- **Primary completion:** 2012-12
- **Final completion:** 2016-12
- **Target enrollment:** 2452 (ACTUAL)
- **Last updated:** 2023-04-13

## Collaborators

- [object Object]

## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT02014038

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT02014038, "Ultrarunners Longitudinal TRAcking Study (ULTRA)". Retrieved via AI Analytics 2026-06-03 from https://api.ai-analytics.org/clinical/NCT02014038. Licensed CC0.

---

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