Low Dose Cyclophosphamide Treats Genital Warts

This study has been completed.
Information provided by:
Huazhong University of Science and Technology
ClinicalTrials.gov Identifier:
First received: October 21, 2009
Last updated: November 24, 2009
Last verified: November 2009
Condylomata acuminata (CA) caused by human papillomavirus (HPV) is a common sexually transmitted disease with half a million new cases diagnosed in the United States per year. Recurrence is a major challenge for CA treatment. The investigators have demonstrated that FOXP3+ regulatory T (Treg) cells mediate the immunosuppression in large genital warts. And low-dose cyclophosphamide (CY), a conventional chemotherapy drug, has been reported to selectively deplete Treg cells in cancer patients. Therefore, the investigators hypothesized that low-dose CY can be used to treat genital warts. In this study, 104 CA patients have been recruited for clinical trial with a 1:2 randomization. Among them, 64 patients received low-dose cyclophosphamide and 32 received placebo. In 8 extra patients, high-dose cyclophosphamide was given.

Condition Intervention Phase
Genital Wart
Drug: cyclophosphamide
Phase 3

Study Type: Interventional
Study Design: Allocation: Randomized
Endpoint Classification: Safety/Efficacy Study
Intervention Model: Parallel Assignment
Masking: Single Blind (Investigator)
Primary Purpose: Treatment
Official Title: Phase III Study of the Treatment of Genital Warts by Low Dose Cyclophosphamide

Resource links provided by NLM:

Further study details as provided by Huazhong University of Science and Technology:

Primary Outcome Measures:
  • low-dose cyclophosphamide effectively prevents the recurrence of large genital warts after laser therapy [ Time Frame: 6 month ] [ Designated as safety issue: Yes ]

Enrollment: 104
Study Start Date: January 2007
Study Completion Date: August 2009
Primary Completion Date: June 2009 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
No Intervention: placebo
Active Comparator: cyclophosphamide Drug: cyclophosphamide
50 mg oral per day for 7 days
Other Name: CY

Detailed Description:
Patients were first treated with CO2 laser therapy, and then treated with low-dose CY, orally 50 mg per day for 7 days.The CA recurrence were observed.

Ages Eligible for Study:   18 Years to 60 Years
Genders Eligible for Study:   Both
Accepts Healthy Volunteers:   Yes

Inclusion Criteria:

  • Clinical diagnosis of large genital warts

Exclusion Criteria:

  • HPV type 6 or 11 was detected negatively by PCR method.
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Please refer to this study by its ClinicalTrials.gov identifier: NCT00999986

China, Hubei
Tongji Hospital
Wuhan, Hubei, China, 430030
Sponsors and Collaborators
Huazhong University of Science and Technology
Principal Investigator: Bo Huang, PH.D, MD Tongji Medical College
  More Information

Additional Information:
Responsible Party: Feifan Meng, Sheng-Qi-An Biotech Inc
ClinicalTrials.gov Identifier: NCT00999986     History of Changes
Other Study ID Numbers: Sheng-Qi-An 
Study First Received: October 21, 2009
Last Updated: November 24, 2009
Health Authority: China: Ministry of Health

Additional relevant MeSH terms:
Condylomata Acuminata
DNA Virus Infections
Papillomavirus Infections
Sexually Transmitted Diseases
Sexually Transmitted Diseases, Viral
Skin Diseases
Skin Diseases, Infectious
Skin Diseases, Viral
Tumor Virus Infections
Virus Diseases
Alkylating Agents
Antineoplastic Agents
Antineoplastic Agents, Alkylating
Antirheumatic Agents
Immunologic Factors
Immunosuppressive Agents
Molecular Mechanisms of Pharmacological Action
Myeloablative Agonists
Pharmacologic Actions
Physiological Effects of Drugs
Therapeutic Uses

ClinicalTrials.gov processed this record on May 01, 2016