Independent directory Public ClinicalTrials.gov records United States
ClinicalTrials.gov record
Not listed No phase listed Observational

International Registry for Severe Chronic Neutropenia

ClinicalTrials.gov ID: NCT00004342

Public ClinicalTrials.gov record NCT00004342. 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 Sep 9, 2026, 6:48 AM EDT

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

Brief summary

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

OBJECTIVES: I. Document the clinical course of severe chronic neutropenia (SCN). II. Monitor and assess long term safety of primary treatment in SCN patients in the United States, Canada, Europe, and Australia. III. Study the incidence and outcome of adverse events such as osteoporosis, splenomegaly, cytogenetic abnormalities, myelodysplastic syndrome, and leukemia. IV. Evaluate growth and development and hematologic parameters. V. Monitor for clinically significant changes in primary treatment response over time. VI. Establish a physician network to increase the understanding of SCN. VII. Establish a demographic database to allow for future research.

Study identification

NCT ID
NCT00004342
Recruitment status
Not listed
Study type
Observational
Phase
Not listed
Enrollment
1,000 participants

Conditions and interventions

Conditions

Interventions

Not listed

Eligibility (public fields only)

Age range
3 Months 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
May 31, 1994
Primary completion
Not listed
Completion
Not listed
Last update posted
Oct 21, 2020

Started 1994

United States locations

U.S. sites
5
U.S. states
4
U.S. cities
5
Facility City State ZIP Site status
Dana-Farber/Boston Children¹s Cancer and Blood Disorders Center Boston Massachusetts 02115 Recruiting
University of Massachusetts Worcester Massachusetts 01655 Recruiting
University of Michigan Ann Arbor Michigan 48109-0266 Recruiting
St. Joseph's Children's Hospital Paterson New Jersey 07503 Recruiting
University of Washington School of Medicine Seattle Washington 98195 Recruiting

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

Non-U.S. locations

This page focuses on the U.S. directory. The official record also lists 5 non-U.S. sites.

About this trial record page

What this page shows
Public field values for ClinicalTrials.gov record NCT00004342, 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 Oct 21, 2020 · Synced Sep 9, 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 protocol, eligibility criteria, and contact information for NCT00004342 live on ClinicalTrials.gov.

View official ClinicalTrials.gov record →