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NCT Number: NCT04979975

Evaluating Safety and Efficacy of Repeat Doses of UB-621in Adult Patients With Recurrent Genital Herpes

To evaluate the efficacy of repeat-dose UB-621 for the recurrent genital HSV-2 infection To evaluate the safety and tolerance of repeat-dose UB-621 for the recurrent HSV-2 infection To evaluate the pharmacokinetics of repeat-dose UB-621 in RGH patients

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Key information

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Age ≧18 years at the time of signing ICF
  • HSV-2 seropositive when screening
  • A history of recurrent genital herpes and experience 6-12 episodes in the past year
  • Negative result of the HIV assay
  • In baseline period, subject have to present at the site within 72 hours after the occurrence of new lesions
  • Keep daily diary during the study period
  • Female subjects: negative serum β-HCG at screening and no beast-feeding.
  • Use contraception during study participation
  • Understanding and willing to fully comply with study interventions and restrictions.

Exclusion criteria

  • Any medical conditions that may interfere the assessment of UB-621efficacy, or any medical conditions that may present symptoms in the anogenital regions (such as syphilis, genital warts).
  • History of malignancy, diabetes, auto-immune diseases or immunodificiency diseases.
  • Use of systemic steroids or immunomodulators within 30 days prior to the screening
  • Participating any clinical trials within 30 days prior to the screening, or within 5 half-life of any investigational drugs, take the longer.
  • Vaccination within 30 days prior to the screening.
  • Prior exposure to any HSV vaccines
  • Known hypersensitive to monoclonal antibodies
  • ECG abnormalities with clinical relevance or cardiovascular diseases at screening
  • Serum creatinine > 1.5 mg/dL at screening
  • AST and ALT > 2.5 x ULN at screening
  • HBsAg positive or HCT antibody positive at screening
  • Syphilis RPR test positive at screening
  • TB history or documented T-spot positive, or now is under treatment of TB
  • Any other circumstances that are determined to affect the conduct or successful completion of the clinical study

Treatment and study plan

Placebo

Other

PBO- placebo matching to UB-621

UB-621 low-dose

Biological

fully human anti-HSV mAb

UB-621 high-dose

Biological

fully human anti-HSV mAb

Primary outcomes

  1. Time to first recurrence

    Time frame: 26 weeks

    Time to first recurrence episode after experimental drug administration as reported by patient and verified by investigator.

Secondary outcomes

  1. Proportion of subjects with episodes

    Time frame: 26 weeks

    Proportion of subjects with episodes is calculated as the number of subjects with episodes divided by the number of total subjects.

  2. Lesion rate

    Time frame: 26 weeks

    Lesion rate is calculated as the number of days with lesion divided by the number of study days.

  3. Duration of recurrent lesions

    Time frame: 26 weeks

    Duration of recurrent lesions is calculated as consecutive days with lesions.

  4. Recurrence rate

    Time frame: 26 weeks

    Recurrence rate is defined as number of recurrences divided by the total number of study days.

Other outcomes

  1. HSV-2 shedding rate

    Time frame: 12 weeks

    Viral shedding rate is defined as the number of positive anogenital swabs divided by total number of swabs.

  2. Clinical and Subclinical HSV-2 Shedding Rates

    Time frame: 12 weeks

    Daily record of subject self-assessment of genital lesions in subject diary in addition to anogenital swabs collected daily from subjects during the follow-up periods will be used to evaluate the clinical (lesional) and subclinical (non-lesional) HSV-2 shedding rates.

  3. Rate of HSV-2 Shedding Episodes

    Time frame: 12 weeks

    The rate of HSV-2 shedding episodes is the number of onsets of shedding episodes divided by the total number of days with swabs collected. Shedding episodes are defined as consecutive HSV-2 positive swab results including no more than 1 consecutive negative result or missed swab. The episodes are preceded and followed by 2 consecutive negative swab results.

  4. HSV-2 viral load

    Time frame: 12 weeks

    Anogenital swab samples collected from subjects during follow-up period will be used to quantify HSV-2 DNA copies.

Study contacts

Contact information is provided by the study sponsor or research team.

Linda Shih, DVM

CONTACT

[email protected]

+886 36684800 ext. 3851

Sponsors and collaborators

Lead sponsor

UBP Greater China (Shanghai) Co., Ltd

Industry

Registry information

Official study title

A Randomized, Single-blind, Placebo-control, Parallel, Phase II Trial to Evaluate the Safety and Efficacy of UB-621 in Adults With Recurrent Genital HSV-2 Infection

Important dates

Study start
2023
Primary completion
2025
Study completion
2026
First posted
Jul 28, 2021
Registry last updated
Oct 3, 2022

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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