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Study of Targeted Therapy Using Transcription Activator-like Effector Nucleases in Cervical Precancerous Lesions

Safety Study of Transcription Activator-like Effector Nucleases T512 in HPV16-infected Subjects

Status
UNKNOWN
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03226470
Enrollment
40
Registered
2017-07-21
Start date
2017-03-10
Completion date
2022-06-10
Last updated
2022-01-14

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

Conditions

Human Papillomavirus-Related Malignant Neoplasm

Keywords

Transcription Activator-like Effector Nucleases, Human papillomavirus, cervical intraepithelial neoplasia

Brief summary

This is an single arm clinical study of the safety and efficacy of T512 to possibly treat cervical intraepithelial neoplasia(CIN).

Detailed description

Persistent infection with high-risk human papillomavirus (HPVs),especially types 16 and 18,may lead to cervical intraepithelial neoplasia(CIN).HPVs expresses the oncoproteins E6 and E7, both of which play key roles in maintaining viral infection and promoting carcinogenesis. Previous studies showed that using designated TALENs (T27 and T512) targeted HPV16 E6 and E7 produced disruption of HPV16 E6 and E7 DNA, decreased the expression of E6 and E7 proteins, and induced cell apoptosis. This study will evaluate the safety and efficacy of and T512 in treating HPV Persistency and HPV16-positive CIN.

Interventions

BIOLOGICALT512

T512 suppository contain 500 µg of T512 and suppocire.

Sponsors

Huazhong University of Science and Technology
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
FEMALE
Age
18 Years to 50 Years
Healthy volunteers
No

Inclusion criteria

* Documented HPV16 infection and integration. * Married and fertile, no fertility requirements. * The cervical transformation zone was type I or II, and the biopsy results under colposcopy suggested SIL. * Without administration of hormone in the last six months * Subjects must be meet the ethical requirements and have signed informed consent

Exclusion criteria

* Pregnancy and breast feeding * Any bacterial vaginitis * Any Fungal vaginitis * Any sexually transmitted diseases * Active drug or alcohol abuse * Any HPV medications within the past 12 weeks * Allergy to active or non active ingredients in the study of drugs * Cardiac insufficiency * Liver and renal insufficiency * Hypertension and severe complications * Serious illness in past 30 days * Currently participating in another clinical trial or any prior gene therapy

Design outcomes

Primary

MeasureTime frameDescription
Safety-Number of participants with Adverse Events6 monthsNumber of participants who report adverse events as a measure of safety

Secondary

MeasureTime frameDescription
Change of HPV16 DNA titersBaseline, 3 and 6 monthsBlood samples will be taken at the indicated times
Number of dysplastic cells mearsured by ThinPrep Pap TestBaseline, 3 and 6 monthsFrom high-grade squamous intraepithelial lesion (HSIL) to Low-grade Squamous Intraepithelial Lesion (LSIL), or from LSIL to negative
Change of cervical histological resultsBaseline and 6 monthsColposcopy Biopsy will be conducted at the baseline and month 6 on each subject

Countries

China

Contacts

Primary ContactDing Ma, M.D.
dma@tjh.tjmu.edu.cn86-27-83662681

Outcome results

None listed

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