Clinical trial Recruiting at 6 sites Phase 4 Interventional Ages 16 to 80

Evaluating 2LHERP® for treating recurrent orofacial herpes infections

Official title: Randomized, Placebo-controlled, Double-blind Study to Evaluate the Efficacy of 2LHERP® in Patients With Recurrent Orofacial Herpes Infections.

Run by Labo'Life · NCT04065971 · Data updated 2026-11-12

This study is testing if a new treatment called 2LHERP® can help adults with frequent orofacial herpes infections have fewer outbreaks over a year.

Quick facts

PhasePhase 4
Study typeInterventional
Ages16 Years to 80 Years
SexAll
Enrollment140 (estimated)
SponsorLabo'Life
Industry-sponsored
Drugs / interventionschemotherapy, immunotherapy
Locations6 sites (Beerzel and 5 other locations)
StatusRecruiting
StartedMarch 10, 2020
Main results expectedMarch 31, 2027
Study endsMarch 31, 2027
Registry record updatedAugust 27, 2026
Trial IDNCT04065971 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates are adults aged 16 to 80 with a history of recurrent orofacial herpes infections.

Probably not a fit

Patients who are pregnant, breastfeeding, or currently undergoing immunotherapy may not benefit from this study.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This clinical trial aims to assess the efficacy of 2LHERP®, an immune regulator, in reducing the frequency of recurrent orofacial herpes infections in adults. The study will involve 140 participants aged 16 to 80 who have experienced six or more episodes of herpes in the past year. Participants will be randomly assigned to receive either 2LHERP® or a placebo for six months, followed by a six-month follow-up period. The primary objective is to evaluate the reduction in the number of herpes episodes over 12 months, alongside secondary objectives focusing on various aspects of treatment efficacy and safety.

Why it matters

Potential benefit: If successful, this treatment could significantly reduce the frequency of painful herpes outbreaks, improving patients' quality of life.

How similar studies have gone: While 2LHERP® has been used for over 20 years, this specific placebo-controlled trial is novel in its structured evaluation of its efficacy.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Man or woman aged 16-80 years,
* Patient presenting 6 or more episodes of orofacial herpes infections during the preceding 12-months' period (prior to the study entry),
* Woman of childbearing age under effective contraception,
* Patient reporting a current stable sexual relationship (steady sexual partner during study duration),
* Patient having faculties to understand and respect the constraints of the study,
* Signature of the Informed Consent Form.

Exclusion Criteria:

* Pregnant or breastfeeding woman,
* Patient under immunotherapy (including immunosuppressive treatment) or micro-immunotherapy received during last previous 6 months,
* Patient who had a suppressive antiviral therapy during last month,
* Patient who wishes to continue his/her suppressive antiviral therapy,
* Patient with known lactose intolerance,
* Patient who participated in a clinical study in the previous 3-month period,
* Patient who is not sufficiently motivated to engage in a follow-up period of 12 months, or likely to travel or to move before the end of the study,
* Patient with severe immunodeficiency disease requiring long term treatment (\*) or under chemotherapy or radiotherapy or corticoid therapy,
* Patient under listed homeopathic or phytotherapy treatment,
* Patient using or addicted to recreational drugs.

(\*) important renal or respiratory insufficiency, transplanted or grafted patients HIV/AIDS, terminal cancer.

Where it's running

  • Private Practice
    Beerzel, Belgium
    Recruiting
  • Cabinet privé
    Beuzet, Belgium
    Recruiting
  • Clinique Saint-Luc (Bouge)
    Bouge, Belgium
    Recruiting
  • Private Practice
    Linkebeek, Belgium
    Recruiting
  • Cabinet privé
    Noirefontaine, Belgium
    Recruiting
  • Private Practice
    Oisquercq, Belgium
    Recruiting

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.