ClinicalTrials.gg
RecruitingNCT04232917PAPIONUpdated Aug 27, 2026

Study of 2LPAPI® on the Clearance of Genital HR-HPV Infections.

A Phase 4 interventional study of 2LPAPI® and Placebo in Human Papilloma Virus, sponsored by Labo'Life. Recruiting at 11 sites in 2 countries. Open to female participants aged 25 Years to 45 Years. Per ClinicalTrials.gov, last updated 2026-08-27.

Sponsored by Labo'Life · Phase 4, Interventional, and Treatment

From the registry’s dates

  • Started Oct 2020; still recruiting 6 years later.
Phase
Phase 4
Study type
Interventional
Enrollment
284
Allocation
Randomized
Ages
25 Years to 45 Years
Sex
Female
01

Study summary

Human papillomavirus (HPV) is a prevalent pathogen, the epidemiology of which has mostly been studied in the uterine cervix and the vagina.

In Belgium, since 2025, HPV testing has become the primary screening method for cervical cancer. For women between 30 and 64 years, a clinical guideline (March 2025) from Sciensano stated the following " The triage of HPV-positive women is based on HPV type and reflex cytology outcome as a threshold for colposcopy. In 30- to 64-year-olds, triage of HR-HPV non-16/18 positives consists of an initial reflex cytology, followed by another HPV test 12 months later if the first step demonstrated Negative for Intraepithelial Lesion or Malignancy (NILM). Women who test positive on the initial HR-HPV test for the most high-risk HPV types 16 or 18 are immediately referred for colposcopy. Besides colposcopy, a reflex cytology will be performed. ". Women from 25 to 29 years are recommended to undergo a cytology testing on cervical smear as primary screening method following Sciensano clinical guideline (March 2025) recommendations. If abnormalities are detected, a HPV testing is performed. For the two age groups, if low grade abnormalities are detected with a diagnosis of HR-HPV, a second triage is recommended at 12 months.

There is no treatment that is recommended during this lap time. The 2LPAPI® has been available for more than 20 years, and has received a marketing authorization in Belgium by the FAMHP. It is used as an immune regulator in the treatment of HR-HPV infections. Since 2LPAPI® has been made available, clinical observational data collected on treated patients have shown the beneficial effect on the clearance of HPV.

The purpose of this placebo-controlled trial is to evaluate the efficacy of 2LPAPI® on the clearance of genital HR-HPV infections.

Read the detailed description

The study duration will be 72 months with 60 months of inclusion (that may be extended if the expected number of patients is not reached after 60 months) and 12 months of follow-up.

Patients aged between 25 and 45 years presenting a diagnosis of HR-HPV infection during the routine screening visit for cervical cancer prevention.

The total number of patients to include will be 284 with 142 patients per group.

Primary objective:

Comparison of the efficacy of 2LPAPI® versus placebo on the clearance of genital HR-HPV infections after 12 months of follow-up.

Secondary objectives:

Comparison of 2LPAPI® versus placebo on:

  • HR-HPV infection clearance rate at 6-month visits,
  • HR-HPV infection clearance rate by HPV type at 6-month and 12-month visits,
  • Evolution of cytology,
  • Normalization of cytology for the subpopulation of patients with a baseline non normal cytology,
  • Safety: adverse events (AEs) and serious adverse events (SAEs), considered as related or not to the study drug.

Treatment phase:

Group n°1 = 2LPAPI® (6 months of treatment) Group n°2 = Placebo (6 months of treatment) Post-treatment follow-up phase: 6 months. Treatment will be considered successful if the clearance of HR-HPV is done and the cytology is normal.

02

Conditions studied

  • Human Papilloma Virus

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03

In context

Papilloma

88 studies on the registry are indexed under Papilloma; 19 are open to participants now.

This study's planned enrollment of 284 is above the median of 119 across 64 interventional studies indexed under Papilloma.

Browse Papilloma studies →

Lead sponsor

Labo'Life is the lead sponsor of 6 studies on the registry; 4 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
25 Years to 45 Years
Sexes eligible
Female
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Women 25-45 years,
  • Women of childbearing age under effective ,
  • Patient with last cytology less than 3 years and normal or not more than LSIL or CIN I at the histology,
  • Patient with current cytology presenting normal, ASC-US, AGUS, LSIL, ASC-H, AGC or LSIL+ASC-H results or current diagnosis of CIN I at the histology,
  • Patient with HR-HPV diagnosis at the current cervical collection,
  • 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 Form.

Exclusion criteria

Exclusion Criteria:

  • Pregnant or breastfeeding woman,
  • Patient presenting HSIL diagnosis at the cytology or CIN II or CIN III diagnosis at the histology,
  • Patient having received HPV vaccination in the last month,
  • Patient previously subject to total hysterectomy,
  • Patient under immunotherapy (including treatment) or micro-immunotherapy received during last previous 6 months,
  • Patient with known lactose intolerance,
  • Patient who participated in a clinical study in the previous 3-months' 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,
  • Patient under listed homeopathic or phytotherapy treatment (see protocol),
  • Patient using or addicted to recreational drugs.

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

Terms in these criteria, in plain language(4)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Contraception

Ways of preventing pregnancy. “Highly effective” methods fail less than 1% of the time a year when used correctly — for example an IUD or an implant.

Criteria usually say which methods count and how long to keep using them after the last dose, sometimes for male participants too. Some studies accept a partner’s vasectomy if it was confirmed successful and that person is the participant’s only sexual partner.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

Immunosuppression

A weakened immune system. It can come from an illness, such as HIV or some blood cancers, or from medicines that turn the immune system down, for example after an organ transplant or for an autoimmune disease; steroids at higher doses count.

Read whether the line is about a condition or about medicines, and which medicines and doses it means.

HIV

The human immunodeficiency virus, which weakens the immune system.

Many studies now accept people whose HIV is controlled on treatment, judged by the viral load and the CD4 count. Check the limits this study sets.

05

Study design

Phase
Phase 4
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Triple (Participant, Investigator, Outcomes assessor)
Enrollment
284 participants (estimated)

Study arms

  • Experimental
    2LPAPI® arm

    The treatment schema consists in taking the content of one capsule a day, 15-30 minutes before breakfast, on an empty stomach, sequentially, according to capsules' numerical order: 1 through 10. When capsule number 10 is taken, capsule 1 of the next blister should be taken on the next day to continue the treatment. The duration of treatment will be 6 months of continuous intake of the content of 1 capsule/day.

    Drug: 2LPAPI®

  • Placebo comparator
    Placebo arm

    The treatment schema consists in taking the content of one capsule a day, 15-30 minutes before breakfast, on an empty stomach, sequentially, according to capsules' numerical order: 1 through 10. When capsule number 10 is taken, capsule 1 of the next blister should be taken on the next day to continue the treatment. The duration of treatment will be 6 months of continuous intake of the content of 1 capsule/day.

    Drug: Placebo

Interventions

  • Drug2LPAPI®

    Treatment

    Also known as: 2LPAPI

  • DrugPlacebo

    Placebo

06

What researchers measure

Primary outcomes

  1. Comparison of the efficacy of 2LPAPI® versus placebo on the clearance of genital HR-HPV infections after 12 months of follow-up.

    The primary objective of the study will be to compare the number of patients with positive HR-HPV infection status observed at 12 months and the number of patients with positive HR-HPV infection status observed at the inclusion.

    Time frame: 12 months

Secondary outcomes

  1. Comparison of 2LPAPI® versus placebo on HR-HPV infection clearance rate at 6-month visits.

    The objective of this outcome will be to compare the number of patients with positive HR-HPV infection status observed at 6 months and the number of patients with positive HR-HPV infection status observed at the inclusion.

    Time frame: 6 months

  2. Comparison of 2LPAPI® versus placebo on HR-HPV infection clearance rate by HPV type at 6-month and 12-month visits.

    The objective of this outcome will be to compare the number of patients with specific type of HPV infection observed at 6 and 12 months and the number of patients with specific HPV infection status observed at the inclusion.

    Time frame: 6 and 12 months

  3. Evolution of cytology (normalization, stagnation or worsening) at 6-month and 12-month visits.

    The objective of this outcome will be to compare the evolution of the cytology at 6-month and 12-month visits.

    Time frame: 6 and 12 months

  4. Normalization of cytology at 6-month and 12-month visits for the subpopulation of patients with a baseline non-normal cytology.

    The objective of this outcome will be to compare the number of patients with a normal cytology at 6-month and 12-month visits in the subpopulation of patients with a baseline non-normal cytology.

    Time frame: 6 and 12 months

  5. Occurrence of adverse events (AEs) and severe adverse events (SAEs), considered as related or not to the study drug

    Time frame: 6 months

07

Study locations

7 of 11 sites recruiting
  • CHU Saint-Pierre
    Brussels, 1000, Belgium
    Recruiting
    • Yannick Manigart, Dr · Contact
    • Yannick Manigart, Dr · Principal investigator
    • Aurélie Joris, Dr · Sub investigator
    • Christine Gilles, Dr · Sub investigator
    • Charlotte Rousseau, Dr · Sub investigator
  • Clinique St Jean
    Brussels, 1000, Belgium
    Recruiting
    • Nathanaël DUBOIS · Contact
    • Jean-Paul VAN GOSSUM · Sub investigator
    • Justine JEHOTTE · Sub investigator
    • Andrea RADULESCU · Sub investigator
    • Mathilde BARREIRA · Sub investigator
    • Nathanaël DUBOIS · Principal investigator
  • CHU Brugmann
    Brussels, 1020, Belgium
    Recruiting
    • Tatiana Besse-Hammer, MD · Contact
    • Catherine Van Pachterbeke, MD · Principal investigator
    • Elie Finianos, MD · Sub investigator
    • Tatiana Besse-Hammer, MD · Sub investigator
  • Hôpital Civil Marie Curie ISPPC
    Charleroi, 6042, Belgium
    Active, not recruiting

    Not enrolling at this site.

  • Centre Hospital Reine Astrid Malmedy (CHRAM)
    Malmedy, 4960, Belgium
    Active, not recruiting

    Not enrolling at this site.

  • Belgium
    Namur, 5000, Belgium
    Recruiting
    • Sarah MITRI · Contact
    • Sarah MITRI · Principal investigator
  • Cabinet privé
    Namur, 5000, Belgium
    Recruiting
    • Benoit MOONS · Contact
    • Benoit MOONS · Principal investigator
  • UCL Namur - site Sainte Elisabeth
    Namur, Belgium
    Recruiting
  • Clinique Saint-Pierre Ottignies (CSPO)
    Ottignies, 1340, Belgium
    Not yet recruiting
    • Lucie Verreth, Dr · Contact
    • Lucie Verreth, Dr · Principal investigator
  • CHWAPI
    Tournai, 7000, Belgium
    Recruiting
    • Marc WAYEMBERGH, MD · Contact
    • Céline PETIT, MD · Sub investigator
    • Sandra TASSART, MD · Sub investigator
    • Marc WAYEMBERGH, MD · Principal investigator
  • Spitalul Nicolae Malaxa
    Bucharest, 022448, Romania
    Not yet recruiting
08

References and documents

Individual participant data

Plan to share: No

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reached

Started Oct 2020 (actual). Primary completion is estimated for Oct 2027, 84 months after the start.

How these figures are worked out, and which studies are left out of them.

Registered
Jan 14, 2020
First posted
Jan 18, 2020
StartActual
Oct 17, 2020
Primary completionEst.
Oct 30, 2027
CompletionEst.
Mar 30, 2028
Last update
Aug 27, 2026
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Aug 27, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT04232917
Lead sponsor
Labo'Life
Collaborators
CEBIS International
Responsible party
Sponsor
First posted
Jan 18, 2020
Start date
Oct 17, 2020
Primary completion
Oct 30, 2027 (estimated)
Completion
Mar 30, 2028 (estimated)
Last update
Aug 27, 2026

Study contacts

Laura FERTE
Contact
laura.ferte@labolife.com
+32499717964
Charlotte BOLLE
Contact
charlotte.bolle@labolife.com

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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