Medical Information Only. Always consult your healthcare provider before enrolling in any clinical trial.

NCT00000433 · ClinicalTrials.gov registry record · Phase 2

Blocking Tumor Necrosis Factor in Ankylosing Spondylitis

A Phase 2 study, sponsored by National Institute of Arthritis and Musculoskeletal and Skin Diseases (NIAMS).

Completed
Registry status
Phase 2
Development phase
42
Enrollment target

NCT00000433: Completed Phase 2 study, sponsored by National Institute of Arthritis and Musculoskeletal and Skin Diseases (NIAMS).

NCT00000433 is a Phase 2 study that has completed, run by National Institute of Arthritis and Musculoskeletal and Skin Diseases (NIAMS). The registered enrollment target is 42 participants, below the 133-participant average among 30,622 other Phase 2 trials with a reported enrollment target (68% lower). According to ClinicalTrials.gov, the official US trial registry.

View on ClinicalTrials.gov ↗

View your shortlist →

The verdict

NCT00000433, a Phase 2 study, has completed, sponsored by National Institute of Arthritis and Musculoskeletal and Skin Diseases (NIAMS).

COMPLETED
Registry status
Phase 2
Development phase
42 participants
Enrollment target

Study Summary

The Division of Rheumatology at University of California San Francisco is conducting a research study on the treatment of ankylosing spondylitis (AS) with a new therapy currently used for people with other forms of arthritis. The drug, called Enbrel (or etanercept), is a protein that is given twice weekly by injection underneath the skin. It blocks the action of tumor necrosis factor-alpha (TNF-alpha), a substance that may be involved in AS, rheumatoid arthritis, and other inflammatory conditions. We will randomly assign patients to receive either the drug or a placebo (inactive treatment) for 4 months. The results we will monitor include morning stiffness, spinal mobility, activities of daily life, and safety of the drug.

Interventions

  • DRUG Anti-Tumor Necrosis Factor

Trial Details

FieldValue
Enrollment Target 42 participants
Start Date 1999-10
Est. Completion 2002-03
Phase Phase 2

What the finished NCT00000433 record still lists

NCT00000433 is an interventional study that assigns participants to a tested intervention. The registry caps enrollment at 42 participants, a relatively small participant target, below the 133-participant average among 30,622 other Phase 2 trials with a reported enrollment target (68% lower).

The record links to 0 conditions, and to 1 intervention - of which Anti-Tumor Necrosis Factor is the first listed.

NCT00000433 does not publish any study locations in the registry export this page uses.

Frequently Asked Questions

What is clinical trial NCT00000433 about?

NCT00000433 is a clinical study titled "Blocking Tumor Necrosis Factor in Ankylosing Spondylitis". The Division of Rheumatology at University of California San Francisco is conducting a research study on the treatment of ankylosing spondylitis (AS) with a new therapy currently used for people with other forms of arthritis. The drug, called Enbrel (or etanercept), is a protein that is given twice ...

What is the current status of trial NCT00000433?

This trial is currently completed. It is a Phase 2 study. The enrollment target is 42 participants. The study started on 1999-10. Estimated completion is 2002-03.

What interventions are being tested in trial NCT00000433?

The interventions under investigation include: Anti-Tumor Necrosis Factor (DRUG).

Who is sponsoring clinical trial NCT00000433?

This trial is sponsored by National Institute of Arthritis and Musculoskeletal and Skin Diseases (NIAMS), which has 93 total clinical trials registered on ClinicalTrials.gov.

How this trial's enrollment target compares

Where NCT00000433's enrollment target sits among peer trials

42 1339th of 2000 higher than 649 of 2,000 other Phase 2 trials

participants (enrollment target), bucketed by value

Each bar is a band; taller bars hold more other Phase 2 trials. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.

Source ClinicalTrials.gov registry export · 2026-08-08

Nationwide trials with similar profiles

Cross-condition peers matched on enrollment target and registry start date, not the same-condition list above.

Similar enrollment target

  • NCT02852213 · 42 participants · Phase 1

    A Single-Stage, Adaptive, Open-label, Dose Escalation Safety and Efficacy Study of AADC Deficiency in Pediatric Patients

  • NCT03136146 · 42 participants · Phase 2

    Combination Chemotherapy in Treating Patients With Relapsed or Refractory Acute Lymphoblastic Leukemia, Lymphoblastic Lymphoma, Burkitt Lymphoma/Leukemia, or Double-Hit Lymphoma/Leukemia

  • NCT03178149 · 42 participants · Phase 1

    A Study of the Safety and Tolerability of ASP7317 in Senior Adults Who Are Losing Their Clear, Sharp Central Vision Due to Geographic Atrophy Secondary to Dry Age-related Macular Degeneration

  • NCT03663530 · 42 participants · NA

    Circadian Misalignment and Energy Balance

Similar registry start date

  • NCT05988463 · started 2027-01-01 · Phase 1

    Dose-Escalation Study of Artesunate Patients With IPF

  • NCT07219706 · started 2026-12-10 · NA

    Dietary Fiber and Time Restricted Eating

  • NCT02831335 · started 2026-12-01

    Technical Development of Multi-Parametric Renocerebral MRI

  • NCT05962346 · started 2026-12 · NA

    Fetal Endoscopic Tracheal Occlusion for Congenital Diaphragmatic Hernia

Source: ClinicalTrials.gov NCT00000433, the US trial registry maintained by the National Library of Medicine. NCT00000433 (small enrollment · none site footprint · completed) retrieved and formatted by PlainTrial, see methodology.