CClinicalTrials.gg
CompletedNCT07228975Updated Nov 20, 2025

Pilot Study on a Dietary Supplement With EndoGen™ as Adjunct Therapy in Women With Endometriosis

An interventional study of MetrioFen Gocce in Endometriosis, sponsored by Endok s.r.l.. Completed at 7 sites in Italy. Open to female participants aged 18 Years to 45 Years. Per ClinicalTrials.gov, last updated 2025-11-20.

Sponsored by Endok s.r.l. · Not applicable, Interventional, and Treatment

From the registry’s dates

  • Registered 1 year 2 months after the study started (first participant enrolled Sep 2024, registered Nov 2025).
Phase
Not applicable
Study type
Interventional
Enrollment
36
Allocation
Not applicable
Ages
18 Years to 45 Years
Sex
Female
01

Study summary

Current treatments for endometriosis, such as NSAIDs and hormone therapies, are meant for long-term use but often cause side effects, including stomach, liver, heart, and kidney issues; allergies; and hormonal problems like weight gain, acne, and bone loss. Therefore, one option being studied is a food supplement based on parsley extract (Petroselinum crispum), rosemary extract (Rosmarinus Officinalis L.), and selenium, combined with mountain celery and Vitamins B6, D, and E. The study's goal is to show improvement in pain and reduced use of NSAIDs in fertile women with endometriosis.

Read the detailed description

This is a small, early-stage study designed to test whether a four-month treatment with EndOK Green-a supplement made from EndoGen (TM), a mixture based on parsley extract (Petroselinum crispum), rosemary extract (Rosmarinus Officinalis L.), and selenium-can help reduce pain and lower the need for NSAIDs in women with moderate endometriosis (classified as stage 2 to 4 by the American Fertility Society). EndOK Green extract contains natural compounds like flavonoids (apigenin and luteolin), myristicin, and apiol, which may help ease symptoms through anti-inflammatory, antioxidant, and hormone-balancing effects, with fewer side effects than standard medications. This study includes a 4-week observational run-in period designed to exclude patients who show a clinically meaningful response without receiving any additional treatment.

Following this period, the investigational product will be administered for 16 consecutive weeks. Treatment responders will be defined as patients who meet either of the following criteria during the last 4 weeks of the treatment phase, specifically during the menstrual period:

A reduction of at least 20% from baseline on the VAS100 pain scale (e.g., if baseline pain is 8, a score of 6.4 is sufficient), and/or a 50% reduction from baseline in exposure (duration or dosage) of NSAIDs or other pain relievers.

02

Conditions studied

  • Endometriosis

Keywords

  • endometriosis
  • Pain management
  • NSAIDs reduction
  • Parsely extract
  • Flavonoids
  • Anti-inflammatory
  • Dietary
  • Apigenin
  • Luteolin
  • rosemary extract
  • EndoGen
  • EndOK Green
03

In context

Endometriosis

901 studies on the registry are indexed under Endometriosis; 259 are open to participants now.

This study's enrollment of 36 is below the median of 64 across 525 interventional studies indexed under Endometriosis.

Browse Endometriosis studies →

Lead sponsor

This is the only study on the registry with Endok s.r.l. as lead sponsor.

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

04

Who can participate

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

Eligibility criteria

Inclusion Criteria for the Initial Run-In Phase

  1. Written informed consent, signed and dated personally by the patient.
  2. Female between the ages of 18 and 45 (including limits), with no race limitation.
  3. Documented endometriosis, confirmed by laparoscopy, ultrasound, or MRI, with or without biopsy, performed up to 36 months prior to the start of this investigation and independently of it.
  4. Stable health condition and stable drug treatments within the past 2 months.
  5. Endometriosis with a grade 2 (mild) to grade 4 (severe) AFSr score, whether or not treated with sex hormones, contraceptives, or any other specific treatment, stable for a minimum of 2 months. Note: In a first phase of the investigation, patients in class 2 and 3 will be recruited, while in a second phase, patients in class 4 will also be recruited.
  6. 10-point Visual Analogue Scale (VAS) score of pain due to endometriosis of at least 4 for at least 2 days in the 4 weeks prior to run-in.

Inclusion criteria for treatment initiation Patients will start treatment with EndOK Green if they meet all of the following criteria.

  1. Negative urine pregnancy test.
  2. Difference, for at least two days, of no more than 10 in the 10-point Visual Analogue Scale (VAS) (10%) between the 4 weeks prior to the screening visit and the end of the run-in phase, provided that at least one menstruation occurred in the period.
  3. No change in background therapy.

Exclusion Criteria Patients will be excluded if they meet even one of the following criteria:

  1. Pregnancy, breastfeeding, or intending to become pregnant during the time this investigation will be conducted.
  2. Absence of cycles for at least 3 months.
  3. Previous hysterectomy or oophorectomy.
  4. Pelvic inflammatory disease regardless of its etiology (Chlamydia Trachomatis, Neisseria gonorrhoeae, fungi, etc.) or presence of ovarian cysts.
  5. Known hypersensitivity or allergy to the active substances and/or any component of the product under investigation.
  6. Patient who has taken, within 4 weeks prior to inclusion, or is currently taking, dietary supplements for the treatment of pelvic pain or other symptoms of endometriosis.
  7. Participation in any clinical study that has been ongoing or concluded for less than three months.
  8. Patient with one or more psychiatric disorders, such as alcoholism, substance abuse or addictive disorder, bipolar disorder, schizophrenia, or other personality disorders.
  9. Patient who, in the opinion of the gynecologist, will not be able to meet the prerequisites required for this investigation.
05

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
36 participants (actual)

Study arms

  • Experimental
    MetrioFen Gocce

    EndOK Green contains EndoGen (TM)-an oral dose (10 drops per administration) twice daily of parsley extract, rosemary extract, other substances with Apigenin and Luteolin in hydro-alcoholic solution

    Dietary Supplement: MetrioFen Gocce

Interventions

  • Dietary supplementMetrioFen Gocce

    Solution-20 drops per day (equal to about 1 ml) on an empty stomach.

06

What researchers measure

Primary outcomes

  1. Percentage of participants identified as a responder

    Assessed using the 10-point Visual Analogue Scale (VAS) or use of NSAIDs or pain relievers. A "Treatment responder" will be defined as a reduction from baseline of at least 20% change in the 10-point Visual Analogue Scale (VAS) in the last 04 weeks during the menstrual phase or a 50% reduction from baseline in exposure (duration or dosage) to NAIDs or pain relievers.

    Time frame: Baseline, week 8 and week 16

Secondary outcomes

  1. Change from baseline in Pain Intensity using Endometriosis Health Profile (EHP)-30 Questionnaire

    To assess the intensity of pain using the Endometriosis Health Profile (EHP)-30 Questionnaire. Scale of 0 to 100, where 0 indicates the best health status and 100 indicates the worst health status.

    Time frame: Baseline,week 8, week 16

  2. Change from baseline in quality of life evaluated using the Endometriosis Health Profile (EHP)-30 core questionnaire

    To assess Quality of Life using the Endometriosis Health Profile (EHP)-30 core (30 items) questionnaire. Scale of 0 to 100, where 0 indicates the best health status and 100 indicates the worst health status.

    Time frame: Baseline,week 8, week 16

  3. Change from baseline in quality of life measured by the Endometriosis Health Profile (EHP)-30 modular questionnaire

    To assess quality of life using the Endometriosis Health Profile (EHP)-30 modular questionnaire. Scale of 0 to 100, where 0 indicates the best health status and 100 indicates the worst health status.

    Time frame: Baseline,Week 8 and Week 16

  4. Incidence of treatment-emergent effects (Safety and Tolerability)

    Record of adverse events

    Time frame: Baseline, week 4, week 8, week 12 and week 16

  5. Measurement of Adherence to treatment

    Compliance by self-report tool questionnaire-yes or no question on if they adhered to the treatment, and if not, what was the percentage of doses not taken, and for what reason.

    Time frame: Baseline,Week 4, week 8, week 12, week 16

  6. Changes in NSAID or other pain medication use

    Evaluation of pain medications (dose and/or frequency), participant diary, and use of painkillers questionnaire

    Time frame: Baseline, Week 4, Week 8, Week 12, Week 16

  7. Overall self-assessment of efficacy and tolerability using a 5-point scale

    Overall efficacy and tolerability are rated on a 0 to 4 scale, with 0 being little to no effectiveness and/or tolerability and 4 being excellent effectiveness and/or tolerability.

    Time frame: Week 16

  8. Overall physician-assessment of efficacy and tolerability using a 5-point scale

    Overall efficacy and tolerability are rated on a 0 to 4 scale, with 0 being little to no effectiveness and/or tolerability and 4 being excellent effectiveness and/or tolerability.

    Time frame: Week 16

07

Study locations

7 sites
  • Site#4 - Via Nicola Tridente, 35
    Bari, BA 70125, Italy
  • Site#1 - Via Europa, 67
    Alzano Lombardo, BG 24022, Italy
  • Site#3 - Via Enrico De Nicola, 171
    Camaiore, LU 55041, Italy
  • Site#6 - Capo di piazza Gianni Bartoli, 1
    Trieste, TS 34100, Italy
  • Site#5 - Via Sabbionera, 45
    Latisana, UD 33053, Italy
  • Site#2 - Borgo Sant'Agnese, 93
    Portogruaro, VE 30026, Italy
  • Site#7 - Via S.Maria del Pozzo, 106
    Somma Vesuviana, 80049, Italy
08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Nov 20, 2025, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT07228975
Lead sponsor
Endok s.r.l.
Collaborators
Hippocrates Research
Responsible party
Sponsor
First posted
Nov 14, 2025
Start date
Sep 9, 2024
Primary completion
Jul 31, 2025
Completion
Jul 31, 2025
Last update
Nov 20, 2025

Study contacts

Gianluigi Corsetti, CEO
study director · ENDOK S.R.L. - Via di Valle Alessandra, 53, Rome (RM) - Italy
Luciano Serra, Chief Scientific Officer
study director · ENDOK S.R.L. - Via di Valle Alessandra, 53, Rome (RM) - Italy

Oversight

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

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This study is completed, as verified in Nov 2025. You cannot join it, but the record below documents what was studied.

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