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EndometriosisENDOMETNCT01301885

ENDOMET - Novel Diagnostic Tools and Treatments for Endometriosis

An observational study of Endometriosis, run by Turku University Hospital at 4 sites in Finland.

Recruiting

Looking for participants now. Contact the study team or a site below to ask about taking part.

Sites and contacts
Official record
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Trial summary

Endometriosis is a chronic disease characterized by the presence of functional endometrial glands and stroma in ectopic locations outside the uterine cavity. The ectopic endometrial tissue responds to estradiol and other hormones similarly to the normal endometrium. Read more about this study

Who is it for?
Ages 19 to 48 years, women onlyHealthy volunteers can take part
Conditions the study is for
Endometriosis
What is being tested?
Laparoscopy/laparotomy
Type of treatment
Surgery or procedure
How many people
230 participants
Where
4 sitesFinland
Study dates
Oct 2005to Dec 2028
Phase
Observational
Are there results?
Not yet: the study is under way

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 19 to 48 years
  • Women only
  • Healthy volunteers accepted
  • Adult

Study population: Endometriosis: Finnish Caucasian women surgically treated for endometriosis; age 19-48, no significant other disease or medication for other diseases Healthy controls: symptomless Finnish Caucasian women going through laparoscopy for tubal ligation; age 32-48, no significant other disease or medication

Who may be able to join

  • study group: surgically and pathologically verified endometriosis
  • control group: existence of endometriosis ruled out in laparoscopy

Who cannot join

  • no other significant disease or medication for other diseases
  • suspicion of malignancy
  • pregnancy
  • acute infection
  • insufficient understanding of Finnish language
  • previous hysterectomy and/or bilateral salpingo-oophorectomy

Trial locations and contacts

4 sites in 1 country. Contact the study team or a site near you to ask about taking part.

Antti H Perheentupa, MD PhD contact

+358-2-3130000 ext. 30222

antti.perheentupa@utu.fi

Kaisa Huhtinen, PhD contact

+358-2-333 7376

kaisa.huhtinen@utu.fi

Finland4 sites, 1 recruiting
  • Dept of Obstetrics and Gynecology, Helsinki University Hospital

    Helsinki, 00029

    Completed
  • Dept of Obstetrics and Gynecology, North Carelia Central Hospital

    Joensuu, 80210

    Completed
  • Dept of Obstetrics and Gynecology, Päijät-Häme Central Hospital

    Lahti, 15850

    Completed
  • Dept of Obstetrics and Gynecology, Turku University Central Hospital

    Turku, 20520

    Antti Perheentupa, MD, PhD

    Kaisa Huhtinen, PhD

    Recruiting

Other trials in Finland

About this study

Official title: Novel Diagnostic Tools for Endometriosis and Their Exploitation for Prognosis and Prevention of Complications

Endometriosis is a chronic disease characterized by the presence of functional endometrial glands and stroma in ectopic locations outside the uterine cavity. The ectopic endometrial tissue responds to estradiol and other hormones similarly to the normal endometrium. Endometriosis is one of the most common benign gynecological conditions, as many as 5-10% of women in the reproductive age may be affected. In addition to pain which may be severe, subfertility is one of the typical problems associated with endometriosis and may be present in up to 40% of those affected. There is lack of a clear correlation between severity of pain and degree of compromised fertility. Different modes of treatment exist. Hormonal treatments are based on the suppression of estrogenic action on endometriosis as well as the endometrium. Unfortunately, discontinuation of the hormonal treatment typically results in a rapid recurrence of the disease. Surgery may alleviate the symptom for different lengths of time, however, curative treatment frequently involves hysterectomy with bilateral oophorectomy. In order to escape this radical treatment, new targeted therapy in the form of novel pharmacological agents would be of crucial importance. Presently, endometriosis can be reliably diagnosed only by laparoscopy. Since this is an invasive surgical procedure, new diagnostic tools would be warmly welcomed. Furthermore, as the progression of the disease is presently impossible to predict, new markers for the "malignancy" of each case are desperately needed.

The aim of the investigators research is to identify expression of endometriosis specific RNAs/proteins. Evaluation of expression profiles in samples of endometriosis and endometrium of patients with careful clinical and surgical classification of endometriosis as well as healthy control women should initially enable to identify novel targets for new therapies and biomarkers. Particularly the different pain symptoms will be recorded annually and evaluated comprehensively. Furthermore, combined with an adequate 10-year follow up (based on a questionnaire, including fertility, received treatments and different pain symptoms; NRS), the study should enable for example to identify markers for endometriosis associated infertility as well as cases where the disease progresses very rapidly or reoccurs. Different forms of effective treatment may thereafter be designed following the identification of such factors.

Conditions
Endometriosis
Being tested
Laparoscopy/laparotomy
Keywords
endometriosis, dysmenorrhea, infertility, biomarker, drug target, recurrence, complications, dyspareunia, dyschezia, dysuria, chronic pelvic pain, surgical treatment, long-term follow-up
Medical subject headings
Endometriosis, Dysmenorrhea, Infertility, Recurrence, Dyspareunia, Constipation, Dysuria

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Laparoscopy/laparotomyProcedure or surgery

    Surgical treatment of endometriosis (laparotomy/laparoscopy) or laparoscopic sterilisation. Sample collection in both groups.

Study groups in NCT01301885
Study groupRoleWhat they receive
EndometriosisWomen (19-48 years of age) with surgically confirmed endometriosis.
Receives: Procedure: Laparoscopy/laparotomy
Healthy womenHealthy women (32-48 years of age), symptom free, existence of endometriosis ruled out during laparoscopy for tubal ligation
Receives: Procedure: Laparoscopy/laparotomy

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Intra-tissue steroid profiling indicates differential progesterone and testosterone metabolism in the endometrium and endometriosis lesions.

    Measured: During the surgical sample collection

  2. Endometrial and endometriotic concentrations of estrone and estradiol are determined by local metabolism rather than circulating levels.

    Measured: During the surgical sample collection

  3. Serum HE4 concentration differentiates malignant ovarian tumours from ovarian endometriotic cysts.

    Measured: During the surgical sample collection

  4. A relational database to identify differentially expressed genes in the endometrium and endometriosis lesions

    Measured: During the surgical sample collection

Secondary outcomes (2)
  1. A prospective 5-year follow-up of pain recurrence after surgical treatment of endometriosis

    Questionnaire based evaluation of postoperative pain symptoms

    Measured: 5 years (annually) after the completion of patient recruitment

  2. Serum HE-4 concentration is not dependent on menstrual cycle or hormonal treatment among endometriosis patients and healthy premenopausal women

    Measured: During surgical sample collection

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted23 Feb 2011 (estimated)
  2. Study startOct 2005
  3. Primary completionDec 2025 (estimated)
  4. Study completionDec 2028 (estimated)

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Observational
Observational model
Case-control
Time perspective
Prospective
Enrolment
230 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01301885
Sponsor's protocol ID
ENDOMET-231/2004
Acronym
ENDOMET
Status last verified
Aug 2021
First submitted
21 Feb 2011
Last updated
16 Aug 2021
Results posted
No
Data monitoring committee
No

Publications

  • Gabriel M, Fey V, Heinosalo T, Adhikari P, Rytkonen K, Komulainen T, Huhtinen K, Laajala TD, Siitari H, Virkki A, Suvitie P, Kujari H, Aittokallio T, Perheentupa A, Poutanen M. A relational database to identify differentially expressed genes in the endometrium and endometriosis lesions. Sci Data. 2020 Aug 28;7(1):284. doi: 10.1038/s41597-020-00623-x.

    PubMed 32859947
  • Heinosalo T, Gabriel M, Kallio L, Adhikari P, Huhtinen K, Laajala TD, Kaikkonen E, Mehmood A, Suvitie P, Kujari H, Aittokallio T, Perheentupa A, Poutanen M. Secreted frizzled-related protein 2 (SFRP2) expression promotes lesion proliferation via canonical WNT signaling and indicates lesion borders in extraovarian endometriosis. Hum Reprod. 2018 May 1;33(5):817-831. doi: 10.1093/humrep/dey026.

    PubMed 29462326
  • Huhtinen K, Suvitie P, Hiissa J, Junnila J, Huvila J, Kujari H, Setala M, Harkki P, Jalkanen J, Fraser J, Makinen J, Auranen A, Poutanen M, Perheentupa A. Serum HE4 concentration differentiates malignant ovarian tumours from ovarian endometriotic cysts. Br J Cancer. 2009 Apr 21;100(8):1315-9. doi: 10.1038/sj.bjc.6605011. Epub 2009 Mar 31.

    PubMed 19337252
  • Hiissa J, Elo LL, Huhtinen K, Perheentupa A, Poutanen M, Aittokallio T. Resampling reveals sample-level differential expression in clinical genome-wide studies. OMICS. 2009 Oct;13(5):381-96. doi: 10.1089/omi.2009.0027.

    PubMed 19663710
  • Hallamaa M, Suvitie P, Huhtinen K, Matomaki J, Poutanen M, Perheentupa A. Serum HE4 concentration is not dependent on menstrual cycle or hormonal treatment among endometriosis patients and healthy premenopausal women. Gynecol Oncol. 2012 Jun;125(3):667-72. doi: 10.1016/j.ygyno.2012.03.011. Epub 2012 Mar 14.

    PubMed 22426487
  • Huhtinen K, Desai R, Stahle M, Salminen A, Handelsman DJ, Perheentupa A, Poutanen M. Endometrial and endometriotic concentrations of estrone and estradiol are determined by local metabolism rather than circulating levels. J Clin Endocrinol Metab. 2012 Nov;97(11):4228-35. doi: 10.1210/jc.2012-1154. Epub 2012 Sep 11.

    PubMed 22969138
  • Huhtinen K, Saloniemi-Heinonen T, Keski-Rahkonen P, Desai R, Laajala D, Stahle M, Hakkinen MR, Awosanya M, Suvitie P, Kujari H, Aittokallio T, Handelsman DJ, Auriola S, Perheentupa A, Poutanen M. Intra-tissue steroid profiling indicates differential progesterone and testosterone metabolism in the endometrium and endometriosis lesions. J Clin Endocrinol Metab. 2014 Nov;99(11):E2188-97. doi: 10.1210/jc.2014-1913. Epub 2014 Aug 19.

    PubMed 25137424
  • Vehmas AP, Muth-Pawlak D, Huhtinen K, Saloniemi-Heinonen T, Jaakkola K, Laajala TD, Kaprio H, Suvitie PA, Aittokallio T, Siitari H, Perheentupa A, Poutanen M, Corthals GL. Ovarian endometriosis signatures established through discovery and directed mass spectrometry analysis. J Proteome Res. 2014 Nov 7;13(11):4983-94. doi: 10.1021/pr500384n. Epub 2014 Aug 20.

    PubMed 25099244

Questions about this trial

What is this clinical trial studying?

An observational study of Endometriosis, run by Turku University Hospital at 4 sites in Finland.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 2 inclusion and 6 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: looking for participants now, as of the sponsor's last update on 16 Aug 2021. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 4 sites in Finland. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

This study is still under way. Results are not available in the source record yet.

How can a doctor refer a patient or contact the research team?

Contact Antti H Perheentupa, MD PhD (+358-2-3130000 ext. 30222, antti.perheentupa@utu.fi), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Intra-tissue steroid profiling indicates differential progesterone and testosterone metabolism in the endometrium and endometriosis lesions. (time frame: During the surgical sample collection). The study lists 4 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT01301885, which also lists 8 linked publications.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 16 Aug 2021.

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