# Hyperthyroid Follow-Up Study

> **NCT02989103** · — · COMPLETED · sponsor: **National Cancer Institute (NCI)** · enrollment: 35593 (actual)

## Conditions studied

- All-Cause Mortality
- Circulatory and Other Disease Mortality
- Thyroid and Other Cancer Mortality

## Interventions

_None listed._

## Key facts

- **NCT ID:** NCT02989103
- **Lead sponsor:** National Cancer Institute (NCI)
- **Sponsor class:** NIH
- **Phase:** —
- **Study type:** OBSERVATIONAL
- **Status:** COMPLETED
- **Start date:** 2016-12-06
- **Primary completion:** 2020-09-01
- **Final completion:** 2020-10-28
- **Target enrollment:** 35593 (ACTUAL)
- **Last updated:** 2020-10-29


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT02989103

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT02989103, "Hyperthyroid Follow-Up Study". Retrieved via AI Analytics 2026-06-02 from https://api.ai-analytics.org/clinical/NCT02989103. Licensed CC0.

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