Skip to content

Safety and Efficacy of A-007 Topical Gel in the Treatment of High-Grade Squamous Intraepithelial Lesions (HSIL) of the Cervix

A Phase 2, Randomized, Double-Blind, Placebo-Controlled, Trial of the Use of 4,4'-Dihydroxybenzophenone-2,4-Dinitrophenyl-hydrazone (A-007) Topical Gel in the Treatment of High-Grade Squamous Intraepithelial Lesions (HSIL) of the Cervix

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00285207
Enrollment
147
Registered
2006-02-01
Start date
2006-01-31
Completion date
2008-06-30
Last updated
2010-10-11

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Cervical Intraepithelial Neoplasia, Uterine Cervical Dysplasia

Keywords

Cervical Intraepithelial Neoplasia (CIN), High-grade Cervical Intraepithelial Neoplasia, High-grade Squamous Intraepithelial Lesions (HSIL), Human Papilloma Virus (HPV), High-Grade Cervical Intraepithelial Lesions (CIN 2/3)

Brief summary

A-007 is an investigational therapy which may be effective in the treatment of pre-cancerous cervical dysplasia (abnormal cell growth). The purpose of this study is to evaluate the safety and efficacy of A-007, when used to treat high-grade cervical dysplasia.

Detailed description

This is a randomized, double-blind, placebo-controlled study. It will randomize patients in a 1:1 ratio to topical cervical treatment with A-007, or placebo gel. Following biopsy confirmation of High Grade Squamous Intraepithelial Lesions (HSIL), women will treat themselves with gel applied to the cervix via an intravaginal applicator. Patients will apply gel once daily for 5 consecutive days of a 28-day cycle for 2 cycles. Women will return to clinic for safety assessments, colposcopy, cytology, and virologic and immunologic testing.

Interventions

DRUGplacebo

5 days of 28 day cycle for 2 cycles

DRUGA007

5 days of 28 day cycle

Sponsors

Tigris Pharmaceuticals
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
DOUBLE (Subject, Investigator)

Eligibility

Sex/Gender
FEMALE
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

Patients may be enrolled in the study only if they meet all of the following criteria: * 18 years of age or older * The patient or her authorized representative must sign and date an Ethical Review Board-approved informed consent document. All aspects of the protocol must be explained and written informed consent obtained. * Patients must have histological proof of HSIL (CIN 2/3) disease documented. * Cervical swabs must test positive for HPV (by Hybrid Capture 2). * Patients must have a Hb ≥ 9 g/dl, a peripheral WBC ≥ 3000 mm3 and platelet counts ≥ 100,000 mm3. * Normal hepatic and renal functions - AST and ALT \< 2.5 x ULN and creatinine \< 1.5 x ULN, respectively. * Females of childbearing potential must use one of the following birth control methods during the treatment period and 2 weeks thereafter: oral, implantable, injectable contraceptives; abstinence (celibacy). Contraceptive sponges, IUD, spermicides, sponges, condoms, or partner's vasectomy are not acceptable methods of birth control.

Exclusion criteria

Patients will be excluded from the study for any of the following preexisting reasons: * Patients with LSIL (CIN 1) or invasive squamous cell carcinoma (SCC). * SIL (CIN) involving the endocervix as determined by endocervical curettage, or otherwise not amenable to adequate colposcopic follow-up evaluations, i.e. unsatisfactory colposcopy. * CIN 3 involving more than two cervical quadrants on colposcopy. * Patients treated for cervical SIL within the past year. * Patients with other malignancy (except for non-melanoma skin) within the past 5 years. * Patients with any active infections (including HIV) other than HPV. * Patients with known clinically relevant immunological deficiency. * Concurrent treatment with cytotoxic, radiation, or immuno-stimulative therapy, or with systemic corticosteroids at a dose of \> 5 mg/d of prednisone (or its equivalent). * Participation in another investigational medication trial concurrently or within 30 days, or prior participation in an HPV vaccine trial. Treatment within the last 30 days with a medication that has not received regulatory approval at the time of study entry. * Concomitant use of topical vaginal medications. * Significant acute or chronic medical or psychiatric illness that, in the judgment of the Investigator, could compromise subject safety, limit the subject's ability to complete the study, and/or compromise the objectives of the study. * History of allergy or hypersensitivity to cosmetics, toiletries, or other topical or dermatologic products. * Pregnant or lactating females who are nursing and will not consent to cease nursing. * Investigators, site personnel directly affiliated with this study, and their immediate families. Immediate family is defined as a spouse, parent, child or sibling, whether biological or legally adopted.

Design outcomes

Primary

MeasureTime frameDescription
Pathological Responsebaseline and 4 monthsPathological resonse is defined as a patient who regressed from Cervical intraepithelial neoplasia (CIN) 2/3 to normal at the end of 4 months.

Secondary

MeasureTime frame
Local Tolerability and Systemic Safety of A-007 Will be Assessed by Way of CTCAE 3.0.over the course of the trial
Eradication of Human Papilloma Virus (HPV) Will be Assessed by Way of Cervical Cytology and Swab Collection.over the course of the trial
Immunologic Parameters B/T Cells Will be Assessed by B/T Cell Profile Collection.over the course of the trial

Countries

United States

Participant flow

Participants by arm

ArmCount
Placebo
Placebo (no treatment)
70
A007
Experimental A007
77
Total147

Withdrawals & dropouts

PeriodReasonFG000FG001
Overall StudyLost to Follow-up32
Overall Studynon-compliance01
Overall StudyPregnancy11
Overall StudyWithdrawal by Subject52

Baseline characteristics

CharacteristicA007PlaceboTotal
Age, Categorical
<=18 years
0 Participants0 Participants0 Participants
Age, Categorical
>=65 years
0 Participants0 Participants0 Participants
Age, Categorical
Between 18 and 65 years
77 Participants70 Participants147 Participants
Age Continuous28.7 years
STANDARD_DEVIATION 7.9
28 years
STANDARD_DEVIATION 6
28.4 years
STANDARD_DEVIATION 7.1
Region of Enrollment
United States
77 participants70 participants147 participants
Sex: Female, Male
Female
77 Participants70 Participants147 Participants
Sex: Female, Male
Male
0 Participants0 Participants0 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
— / —— / —
other
Total, other adverse events
2 / 635 / 75
serious
Total, serious adverse events
0 / 630 / 75

Outcome results

Primary

Pathological Response

Pathological resonse is defined as a patient who regressed from Cervical intraepithelial neoplasia (CIN) 2/3 to normal at the end of 4 months.

Time frame: baseline and 4 months

ArmMeasureValue (NUMBER)
PlaceboPathological Response20 participants
A007Pathological Response24 participants
Secondary

Eradication of Human Papilloma Virus (HPV) Will be Assessed by Way of Cervical Cytology and Swab Collection.

Time frame: over the course of the trial

Secondary

Immunologic Parameters B/T Cells Will be Assessed by B/T Cell Profile Collection.

Time frame: over the course of the trial

Secondary

Local Tolerability and Systemic Safety of A-007 Will be Assessed by Way of CTCAE 3.0.

Time frame: over the course of the trial

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026