Independent directory Public ClinicalTrials.gov records United States
ClinicalTrials.gov record
Completed Phase 3 Interventional

A Phase III Study of Civamide Nasal Solution (Zucapsaicin) for the Treatment of Episodic Cluster Headache

ClinicalTrials.gov ID: NCT00033839

Public ClinicalTrials.gov record NCT00033839. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.

ClinicalTrials.gov public records Last synced Oct 24, 2026, 2:39 PM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Official title

A Phase III, Double-Blind, Randomized, Placebo-Controlled, Parallel-Group, Multicenter Evaluation of Civamide (Zucapsaicin) Nasal Solution in the Treatment of Episodic Cluster Headache

Brief summary

Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.

This is a 49-day study to evaluate the effectiveness of Intranasal Civamide (Zucapsaicin) in the treatment of an episodic cluster headache period compared to placebo (medically inactive substance which does not contain any active ingredients).

Study identification

NCT ID
NCT00033839
Recruitment status
Completed
Study type
Interventional
Phase
Phase 3
Lead sponsor
Winston Laboratories
Industry
Enrollment
60 participants

Conditions and interventions

Interventions

Drug

Eligibility (public fields only)

Age range
18 Years and older
Sex
All
Healthy volunteers
Healthy volunteers not accepted

This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.

Study timeline

Start date
Jan 2002 (Type not available)
Primary completion
Jul 2003 (Actual)
Completion
Jul 2003 (Actual)
Last update posted
Jun 10, 2011

2002 – 2003

United States locations

U.S. sites
26
U.S. states
19
U.S. cities
26
Facility City State ZIP Site status
Valley Neurological Headache & Research Center Phoenix Arizona 85020 —
Neurological Associates of Tucson Tucson Arizona 85712 —
Northern California Headache Clinic Mountain View California 94040 —
San Francisco Clinical Research Center San Francisco California 94109 —
California Medical Clinic for Headache Santa Monica California 90404 —
New England Center for Headache, PC Stamford Connecticut 06902 —
Neurology Clinical Research, Inc. Plantation Florida 33324 —
Neurology and Headache Specialists of Atlanta Decatur Georgia 30033 —
Diamond Headache Clinic Chicago Illinois 60614 —
Boston Clinical Research Center Wellesley Hills Massachusetts 02481 —
Michigan Headache Pain & Neurological Institute Ann Arbor Michigan 48104 —
Henry Ford Hospital Department of Neurology Detroit Michigan 48202 —
Department of Neurology Mayo Clinic Rochester Minnesota 55905 —
Mercy Health Research Chesterfield Missouri 63017 —
Headache Care Center/Clinvest Springfield Missouri 65804 —
Dartmouth Hitchcock Medical Center Lebanon New Hampshire 03756 —
New York Headache Center New York New York 10021 —
The Headache Wellness Center Greensboro North Carolina 27401 —
Cincinnati Headache Clinic Cincinnati Ohio 45219 —
Cleveland Clinic Foundation Cleveland Ohio 44195 —
University of Oklahoma Oklahoma City Oklahoma 73104 —
Neurological Associates of Tulsa, Inc. Tulsa Oklahoma 74136 —
Jefferson Headache Center Philadelphia Pennsylvania 19107 —
Nashville Neuroscience Center Nashville Tennessee 37203 —
Houston Headache Clinic Houston Texas 77004 —
The Neurology and Headache Treatment Center (Innovative Clinical Research) Alexandria Virginia 22304 —

Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.

About this trial record page

What this page shows
Public field values for ClinicalTrials.gov record NCT00033839, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
What this page does not do
No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
Where the data comes from
Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
Last refresh
Last update posted Jun 10, 2011 · Synced Oct 24, 2026

Related: full search, browse by condition, browse by drug or therapy, browse by sponsor, browse by U.S. city.

Open the official record

The complete public registry record, listed eligibility criteria, and available contact information for NCT00033839 live on ClinicalTrials.gov.

View official ClinicalTrials.gov record →