# Evaluation of Late Effects and Natural History of Disease in Patients Treated With Radiotherapy

> **NCT00026650** · — · RECRUITING · sponsor: **National Cancer Institute (NCI)** · enrollment: 700 (estimated)

## Conditions studied

- Cancer

## Interventions

_None listed._

## Key facts

- **NCT ID:** NCT00026650
- **Lead sponsor:** National Cancer Institute (NCI)
- **Sponsor class:** NIH
- **Phase:** —
- **Study type:** OBSERVATIONAL
- **Status:** RECRUITING
- **Start date:** 2000-02-14
- **Primary completion:** —
- **Final completion:** —
- **Target enrollment:** 700 (ESTIMATED)
- **Last updated:** 2026-05-18


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT00026650

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT00026650, "Evaluation of Late Effects and Natural History of Disease in Patients Treated With Radiotherapy". Retrieved via AI Analytics 2026-06-03 from https://api.ai-analytics.org/clinical/NCT00026650. Licensed CC0.

---

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