Completed

A Randomized Double-Blind Phase II Trial of Celecoxib, A COX-2 Inhibitor, in the Treatment of Patients With Cervical Intraepithelial Neoplasia 2/3 or 3 (CIN 2/3 or 3)

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What is being tested

Celecoxib

+ Laboratory Biomarker Analysis
+ Placebo
Drug
Other
Who is being recruted

Urogenital Diseases
+11

+ Genital Diseases
+ Carcinoma
Over 18 Years
See all eligibility criteria
How is the trial designed

Prevention Study

Placebo-Controlled
Phase 2
Interventional
Study Start: June 2005
See protocol details

Summary

Principal SponsorGynecologic Oncology Group
Last updated: January 14, 2026
Sourced from a government-validated database.Claim as a partner
Study start date: June 1, 2005Actual date on which the first participant was enrolled.

PRIMARY OBJECTIVES: I. To determine the efficacy of celecoxib to induce complete remission (or partial regression to cervical intraepithelial neoplasia (CIN) 1) of CIN 2/3 or CIN 3 as evaluated in the post-treatment excisional biopsy. II. To determine the toxicity of celecoxib (400 mg once daily) as assessed by Common Terminology Criteria for Adverse Events in this patient population of women with CIN 2/3 or CIN 3. SECONDARY OBJECTIVES: I. To assess whether treatment with celecoxib changes the number of quadrants containing acetowhite lesions as determined through colposcopic examination. II. To determine the efficacy of celecoxib treatment in changing human papillomavirus (HPV) viral load in cervical cells. III. To examine the association of histologic response; HPV viral load; lesion size; proliferation index (marker of proliferation Ki-67 \[Ki67\]), apoptosis index (terminal deoxynucleotidyl transferase (TdT)-mediated dUTP nick end labelin \[TUNEL\] assay), angiogenesis (vascular endothelial growth factor \[VEGF\]), and cyclooxygenase-2 (COX-2) in tissue; the amount of VEGF and basic fibroblast growth factor (bFGF) in serum before and after treatment; and the amount of celecoxib present in serum during treatment. Cervical cytology karyometry will be assessed as a potential marker for regression IV. To determine the feasibility of digital imaging, web-based review of histopathology in a Gynecologic Oncology Group (GOG) study. V. To compare the diagnoses of the web-based review of histopathology with the diagnoses of GOG's standard procedure. OUTLINE: Patients are randomized to 1 of 2 treatment arms. ARM I: Patients receive oral celecoxib once daily for 14-18 weeks. ARM II: Patients receive oral placebo once daily for 14-18 weeks.

Official TitleA Randomized Double-Blind Phase II Trial of Celecoxib, A COX-2 Inhibitor, in the Treatment of Patients With Cervical Intraepithelial Neoplasia 2/3 or 3 (CIN 2/3 or 3) 
NCT00081263
Principal SponsorGynecologic Oncology Group
Last updated: January 14, 2026
Sourced from a government-validated database.Claim as a partner

Protocol

This section provides details of the study plan, including how the study is designed and what the study is measuring.
Design Details
130 patients to be enrolledTotal number of participants that the clinical trial aims to recruit.
Prevention Study
Prevention studies aim to stop a disease from developing. They often involve people at risk and test things like vaccines, lifestyle changes, or preventive medications.

How participants are assigned to different groups/arms
In this clinical study, participants are placed into groups randomly, like flipping a coin. This ensures that the study is fair and unbiased, making the results more reliable. By assigning participants by chance, researchers can better compare treatments without external influences.

Other Ways to Assign Participants
Non-randomized allocation
: Participants are assigned based on specific factors, such as their medical condition or a doctor's decision.

None (Single-arm trial)
: If the study has only one group, all participants receive the same treatment, and no allocation is needed.

How treatments are given to participants
Participants are divided into different groups, each receiving a specific treatment at the same time. This helps researchers compare how well different treatments work against each other.

Other Ways to Assign Treatments
Single-group assignment
: Everyone gets the same treatment.

Cross-over assignment
: Participants switch between treatments during the study.

Factorial assignment
: Participants receive different combinations of treatments.

Sequential assignment
: Participants receive treatments one after another in a specific order, possibly based on individual responses.

Other assignment
: Treatment assignment does not follow a standard or predefined design.

How the effectiveness of the treatment is controlled
In a placebo-controlled study, some participants receive the experimental treatment, while others receive an inert substance (placebo) to compare outcomes. This method helps to isolate the effect of the treatment from the psychological effects of receiving any treatment at all.

Other Options
Non-placebo-controlled
: No placebo is used. All participants receive the actual treatment or alternative interventions (often the Standard of Care), and comparisons are made between these treatments.

How the interventions assigned to participants is kept confidential
Neither participants nor researchers know who is receiving which treatment. This is the most rigorous way to reduce bias, ensuring that expectations do not influence the results.

Other Ways to Mask Information
Open-label
: Everyone knows which treatment is being given.

Single-blind
: Participants do not know which treatment they are receiving, but researchers do.

Triple-blind
: Participants, researchers, and outcome assessors do not know which treatment is given.

Quadruple-blind
: Participants, researchers, outcome assessors, and care providers all do not know which treatment is given.

Eligibility

Researchers look for people who fit a certain description, called eligibility criteria: person's general health condition or prior treatments.
Conditions
Criteria
FemaleBiological sex of participants that are eligible to enroll.
Over 18 YearsRange of ages for which participants are eligible to join.
Healthy volunteers not allowedIf individuals who are healthy and do not have the condition being studied can participate.
Conditions
Pathology
Urogenital Diseases
Genital Diseases
Carcinoma
Carcinoma in Situ
Uterine Cervical Diseases
Uterine Cervical Dysplasia
Female Urogenital Diseases and Pregnancy Complications
Genital Diseases, Female
Neoplasms
Neoplasms by Histologic Type
Neoplasms, Glandular and Epithelial
Precancerous Conditions
Uterine Diseases
Female Urogenital Diseases
Criteria

Inclusion Criteria: * Patients must have histologically proven CIN 2/3 or CIN 3 diagnosed by cervical biopsy between 2 and 8 weeks prior to enrollment * For a patient to be eligible, the pathology report must clearly state "CIN 2/3" or "CIN 3" or must state "moderate-severe dysplasia", "moderate-severe dyskaryosis," "severe dysplasia," or "severe dyskaryosis;" patients with a diagnosis of CIN 2 alone or moderate dysplasia or dyskaryosis alone are not eligible for this study (3/26/2007) * Patients must have a satisfactory (readable, good quality) colposcopic evaluation at least 14 days after diagnostic biopsy * Patients must have signed an approved informed consent and authorization permitting release of personal health information * Patients must have colposcopically visible cervical lesion at entry consistent with biopsy * Patients must have a negative urine pregnancy test; women of childbearing potential must practice an acceptable form of contraception (e.g. intrauterine device, contraceptive pills, diaphragm, condoms) * Patients must have a GOG Performance Status of 0, 1, or 2 * Patients must agree to refrain from using non-steroidal anti-inflammatory drugs (NSAIDS) and aspirin during the time they are taking the study medication * Patients must be good candidates for delayed treatment of their CIN, i.e. they must be reliable to return for follow-up and provide a combination of at least three phone numbers or addresses for contact * Hemoglobin (HgB) greater than 11.0g/dl * White blood cell (WBC) count greater than 3000/mcl * Platelet count greater than 125,000/mcl (3/26/2007) * Creatinine less than or equal to 1.5 x upper limit normal (ULN) * Total bilirubin less than or equal to 1.5 x ULN excluding Gilbert's disease * Aspartate aminotransferase (AST) and alanine aminotransferase (ALT) \< 2.0 x ULN Exclusion Criteria: * Patients who are pregnant or lactating * Patients with cytologic or biopsy evidence of endocervical dysplasia or invasive cancer * Patients with undiagnosed abnormal vaginal bleeding * Patients who have previously taken celecoxib or any other COX-2 inhibitor at a frequency of greater than 3 times per week within 2 months (60 days) prior to randomization; patients can use Naproxen without restriction (6/23/2008) * Patients with a known immunocompromised condition * Patients who have had a known allergic reaction to any NSAIDS or aspirin (asthma, urticaria, allergic-type reaction) * Patients with a prior history of cervical cancer * Patients with hypersensitivity to Celecoxib * Patients with a known allergic reaction to sulfonamides * Patients with a history of peptic ulcer disease * Patients currently using fluconazole or lithium * Patients with a chronic or acute renal, or hepatic disorder, a significant bleeding disorder, or any other condition which in the investigator's opinion might preclude study participation for the duration of the trial * Patients with a history of transient ischemic attack (TIA), stroke, cardiovascular disease or uncontrolled hypertension

Study Plan

Find out more about all the medication administered in this study, their detailed description and what they involve.
Treatment Groups
Study Objectives
2 intervention groups 

are designated in this study

50% chance 

of being blinded to the placebo group

Treatment Groups
Group I
Experimental
Patients receive oral celecoxib once daily for 14-18 weeks.

Given orally

Correlative studies
Group II
Placebo
Patients receive oral placebo once daily for 14-18 weeks.

Correlative studies

Given orally
Study Objectives
Primary Objectives

Whether or not patients with CIN 2/3 or CIN 3 upon entry experience a complete remission (or partial regression to CIN 1) in the post-treatment excisional biopsy.

Number of participants with a grade of 3 or higher during the treatment period.

Study Centers

These are the hospitals, clinics, or research facilities where the trial is being conducted. You can find the location closest to you and its status.
This study has 43 locations
Suspended
University of Arizona Cancer Center-North CampusTucson, United StatesSee the location
Suspended
University of Arkansas for Medical SciencesLittle Rock, United States
Suspended
Beebe Medical CenterLewes, United States
Suspended
Christiana Care Health System-Christiana HospitalNewark, United States
Completed43 Study Centers