# The Effects of Upper Airway and Digestive Tract Tumors on the Immune System

> **NCT00001603** · — · COMPLETED · sponsor: **National Institute on Deafness and Other Communication Disorders (NIDCD)** · enrollment: 93 (—)

## Conditions studied

- Esophageal Neoplasm
- Head and Neck Neoplasm
- Laryngeal Neoplasm
- Papilloma
- Squamous Cell Carcinoma

## Interventions

_None listed._

## Key facts

- **NCT ID:** NCT00001603
- **Lead sponsor:** National Institute on Deafness and Other Communication Disorders (NIDCD)
- **Sponsor class:** NIH
- **Phase:** —
- **Study type:** OBSERVATIONAL
- **Status:** COMPLETED
- **Start date:** 1996-12
- **Primary completion:** —
- **Final completion:** 2004-12
- **Target enrollment:** 93 (—)
- **Last updated:** 2008-03-04


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT00001603

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT00001603, "The Effects of Upper Airway and Digestive Tract Tumors on the Immune System". Retrieved via AI Analytics 2026-06-26 from https://api.ai-analytics.org/clinical/NCT00001603. Licensed CC0.

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