Endometrial Stromal TumorsESTNCT02829437
Observational Study on Endometrial Stromal Tumors
An observational study of Endometrial Stromal Tumors, run by Italian Sarcoma Group at 13 sites in Italy.
Trial summary
Observational, retrospective and prospective study on Endometrial Stromal Tumor (EST) Read more about this study
- Who is it for?
- Ages 18 to 80 years, women only
- Conditions the study is for
- Endometrial Stromal Tumors
- What is being tested?
- Treatment for EST
- How many people
- 100 participants
- Where
- 13 sitesItaly
- Study dates
- Oct 2016to Dec 2026
- 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 18 to 80 years
- Women only
- No healthy volunteers
- Adult, Older adult
Study population: All the patients with a diagnosis of Endometrial Stromal Tumor (EST)
Who may be able to join
- patients with a diagnosis of Endometrial Stromal Tumor (EST) according to the World Health Organization (WHO) classification 2003 or 2014
- Informed consent signature
Who cannot join
- patients with different diagnosis from EST
Trial locations and contacts
13 sites in 1 country. Contact the study team or a site near you to ask about taking part.
13 sites in 1 country
Italy13 sites, 13 recruiting
- Not yet recruiting
Centro di Riferimento Oncologico di Aviano
Aviano, PD, 33081
Angela Buonadonna, MD, +390434659190, abuonadonna@cro.it
Angela Buonadonna, MD
- Not yet recruiting
Policlinico S.Orsola Malpighi - Unit of Medical Oncology
Bologna, 40138
Maria Abbondanza Pantaleo, MD
- Not yet recruiting
Fondazione del Piemonte per l'Oncologia IRCC Candiolo
Candiolo, Torino, 10060
Giovanni Grignani, MD, +390119933623, enrico.grignani@ircc.it
Giovanni Grignani, MD
- Not yet recruiting
Azienda Ospedaliera Universitaria Careggi
Florence, 50100
Silvia Gasperoni, MD, 39 055 7949648, gasperoni.silvia@gmail.com
Silvia Gasperoni, MD
- Not yet recruiting
Azienda Ospedaliero-Universitaria Careggi
Florence, 50100
Daniela Greto, MD, + 39055794 ext. 111, daniela.greto@gmail.com
Daniela Greto, MD
- Not yet recruiting
Istituto Scientifico Romagnolo per lo Studio e la Cura dei Tumori - IRST
Meldola, FC
Toni Ibrahim, MD
- Recruiting
Fondazione IRCCS Istituto Nazionale dei Tumori
Milan, MI, 20133
Paolo G. Casali, MD, paolo.casali@istitutotumori.mi.it
Paolo G. Casali, MD
- Not yet recruiting
Istituto Europeo di Oncologia
Milan, MI, 20141
Tommaso M. De Pas, MD
- Not yet recruiting
Istituto Oncologico Veneto
Padova, PD, 35128
Antonella Brunello, MD
- Not yet recruiting
Azienda Ospedaliera Universitaria Paolo Giaccone
Palermo, PA, 90127
Antonio Russo, MD, +39 091 6552534, antonio.russo@usa.net
Antonio Russo, MD
- Not yet recruiting
Ospedale Misericordia e Dolce Ist. Toscano Tumori, Az. USL4
Prato, 59100
Giacomo G Baldi, MD
- Not yet recruiting
Campus Biomedico
Roma, 00100
Bruno Vincenzi, MD
Bruno Vincenzi, MD
- Not yet recruiting
Istituti Fisioterapici Ospitalieri di Roma
Roma, 00100
Virginia Ferraresi, MD, virginia.ferraresi@ifo.gov.it
Virginia Ferraresi, MD
About this study
Official title: Endometrial Stromal Tumors: an Observational Study
Observational, retrospective and prospective study on Endometrial Stromal Tumor (EST)
Read the detailed description
Observational, retrospective and prospective study on EST aimed to understand more about its biology, natural history and antitumor activity of different treatment options.
This study will collect data in prospective and retrospective way of patients affected by EST and treated according disease guidelines and local practices.
The study will also review the diagnosis by a central expert pathologist in order to its confirmation
- Conditions
- Endometrial Stromal Tumors
- Being tested
- Treatment for EST
- Medical subject headings
- Endometrial Stromal Tumors
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Treatment for ESTOther
Surgery and/or Chemotherapy and or/radiotherapy for EST treatment according to disease guidelines: no specific treatment is imposed by protocol (observational study)
| Study group | Role | What they receive |
|---|---|---|
| Retrospective Observational Group | Patients who received treatment for EST Patients with EST diagnosis prior August 2016 Receives: Other: Treatment for EST | |
| Prospective Observational Group | Patients who will receive treatment for EST Patients with EST diagnosis after August 2016 Receives: Other: Treatment for EST |
What is being measured
The primary outcome is the main question the study is designed to answer.
Disease natural history
Collection of data on the natural history of endometrial stromal tumors
Measured: Through survival, an average of 5 years
Secondary outcomes (2)
Disease diagnosis and classification
Highlight some main issues in pathologic diagnosis of these tumors and their classification
Measured: At the time of diagnosis, an average of 1 month
Chemotherapy received treatment
Number and type of chemotherapy agents received for EST treatment
Measured: Through treatment completion, an average of 24 month
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted12 Jul 2016 (estimated)
- Study startOct 2016
- Primary completionDec 2026 (estimated)
- Study completionDec 2026 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (26)Papers the sponsor has linked to this study.
- Other trials for Endometrial Stromal TumorsStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
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
- Cohort
- Time perspective
- Other
- Enrolment
- 100 participants (estimated)
Sponsor and investigators
- Lead sponsor
- Italian Sarcoma Group
- Sponsor type
- Research network
- Responsible party
- Sponsor
- Investigators
- Paolo G Casali, MD, Study chair, Italian Sarcoma Group
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT02829437
- Sponsor's protocol ID
- ISG EST
- Acronym
- EST
- Status last verified
- Dec 2025
- First submitted
- 8 Jul 2016
- Last updated
- 2 Jan 2026
- Results posted
- No
- Data monitoring committee
- No
- Individual data sharing
- Yes: Aggregate anonymized results will be available upon request at the end of the study
Publications
Brooks SE, Zhan M, Cote T, Baquet CR. Surveillance, epidemiology, and end results analysis of 2677 cases of uterine sarcoma 1989-1999. Gynecol Oncol. 2004 Apr;93(1):204-8. doi: 10.1016/j.ygyno.2003.12.029.
PubMed 15047237Toro JR, Travis LB, Wu HJ, Zhu K, Fletcher CD, Devesa SS. Incidence patterns of soft tissue sarcomas, regardless of primary site, in the surveillance, epidemiology and end results program, 1978-2001: An analysis of 26,758 cases. Int J Cancer. 2006 Dec 15;119(12):2922-30. doi: 10.1002/ijc.22239.
PubMed 17013893Ali RH, Rouzbahman M. Endometrial stromal tumours revisited: an update based on the 2014 WHO classification. J Clin Pathol. 2015 May;68(5):325-32. doi: 10.1136/jclinpath-2014-202829. Epub 2015 Jan 16.
PubMed 25595274Tavassoli FA, Norris HJ. Mesenchymal tumours of the uterus. VII. A clinicopathological study of 60 endometrial stromal nodules. Histopathology. 1981 Jan;5(1):1-10. doi: 10.1111/j.1365-2559.1981.tb01761.x.
PubMed 7216172Dionigi A, Oliva E, Clement PB, Young RH. Endometrial stromal nodules and endometrial stromal tumors with limited infiltration: a clinicopathologic study of 50 cases. Am J Surg Pathol. 2002 May;26(5):567-81. doi: 10.1097/00000478-200205000-00003.
PubMed 11979087Su TF, Chao TK, Lee HS, Perng CL, Nieh S. Malignant potential of endometrial stromal tumor with limited infiltration: a case report. Int J Surg Pathol. 2014 Sep;22(6):559-63. doi: 10.1177/1066896913506934. Epub 2013 Oct 23.
PubMed 24155223Dong R, Pang Y, Mao H, Yang N, Liu P. Successful pregnancy following conservative management of low-grade endometrial stromal sarcoma: A case report. Oncol Lett. 2014 Apr;7(4):1039-1042. doi: 10.3892/ol.2014.1858. Epub 2014 Feb 7.
PubMed 24944665Choi MC, Kim G, Hwang YY. Fertility-sparing management combined with photodynamic therapy for endometrial stromal sarcoma: a case report. Photodiagnosis Photodyn Ther. 2014 Dec;11(4):533-6. doi: 10.1016/j.pdpdt.2014.07.007. Epub 2014 Aug 11.
PubMed 25125393Della Badia C, Karini H. Endometrial stromal sarcoma diagnosed after uterine morcellation in laparoscopic supracervical hysterectomy. J Minim Invasive Gynecol. 2010 Nov-Dec;17(6):791-3. doi: 10.1016/j.jmig.2010.07.001.
PubMed 20955991Park JY, Kim DY, Kim JH, Kim YM, Kim YT, Nam JH. The impact of tumor morcellation during surgery on the outcomes of patients with apparently early low-grade endometrial stromal sarcoma of the uterus. Ann Surg Oncol. 2011 Nov;18(12):3453-61. doi: 10.1245/s10434-011-1751-y. Epub 2011 May 4.
PubMed 21541824Shah JP, Bryant CS, Kumar S, Ali-Fehmi R, Malone JM Jr, Morris RT. Lymphadenectomy and ovarian preservation in low-grade endometrial stromal sarcoma. Obstet Gynecol. 2008 Nov;112(5):1102-8. doi: 10.1097/AOG.0b013e31818aa89a.
PubMed 18978112Dos Santos LA, Garg K, Diaz JP, Soslow RA, Hensley ML, Alektiar KM, Barakat RR, Leitao MM Jr. Incidence of lymph node and adnexal metastasis in endometrial stromal sarcoma. Gynecol Oncol. 2011 May 1;121(2):319-22. doi: 10.1016/j.ygyno.2010.12.363. Epub 2011 Jan 26.
PubMed 21276609Amant F, De Knijf A, Van Calster B, Leunen K, Neven P, Berteloot P, Vergote I, Van Huffel S, Moerman P. Clinical study investigating the role of lymphadenectomy, surgical castration and adjuvant hormonal treatment in endometrial stromal sarcoma. Br J Cancer. 2007 Nov 5;97(9):1194-9. doi: 10.1038/sj.bjc.6603986. Epub 2007 Sep 25.
PubMed 17895898Amant F, Coosemans A, Debiec-Rychter M, Timmerman D, Vergote I. Clinical management of uterine sarcomas. Lancet Oncol. 2009 Dec;10(12):1188-98. doi: 10.1016/S1470-2045(09)70226-8.
PubMed 19959075Rauh-Hain JA, del Carmen MG. Endometrial stromal sarcoma: a systematic review. Obstet Gynecol. 2013 Sep;122(3):676-83. doi: 10.1097/AOG.0b013e3182a189ac.
PubMed 23921879
Study at a glance
From the registry record, last updated by the sponsor on 2 Jan 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Endometrial Stromal Tumors: an Observational Study
- ClinicalTrials.gov ID
- NCT02829437
- Acronym / sponsor ID
- EST / ISG EST
- Conditions
- Endometrial Stromal Tumors
- Study type
- Observational
- Recruitment status
- Recruiting
- Enrolment
- 100 participants (estimated)
- Lead sponsor
- Italian Sarcoma GroupResearch network
- Study start
- Oct 2016
- Primary completion
- Dec 2026 (estimated)
- Study completion
- Dec 2026 (estimated)
- First posted
- 12 Jul 2016 (estimated)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
Observational, retrospective and prospective study on Endometrial Stromal Tumor (EST)
Detailed description
Observational, retrospective and prospective study on EST aimed to understand more about its biology, natural history and antitumor activity of different treatment options.
This study will collect data in prospective and retrospective way of patients affected by EST and treated according disease guidelines and local practices.
The study will also review the diagnosis by a central expert pathologist in order to its confirmation
Study design
- Observational model
- Cohort
- Time perspective
- Other
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| Retrospective Observational Group | – | Other: Treatment for ESTPatients who received treatment for EST Patients with EST diagnosis prior August 2016 |
| Prospective Observational Group | – | Other: Treatment for ESTPatients who will receive treatment for EST Patients with EST diagnosis after August 2016 |
Who may qualify
- Ages
- 18 to 80 years
- Sex
- Female only
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
- Study population
- All the patients with a diagnosis of Endometrial Stromal Tumor (EST)
Key inclusion criteria (2 listed)
- patients with a diagnosis of Endometrial Stromal Tumor (EST) according to the World Health Organization (WHO) classification 2003 or 2014
- Informed consent signature
Key exclusion criteria (1 listed)
- patients with different diagnosis from EST
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| Treatment for ESTSurgery and/or Chemotherapy and or/radiotherapy for EST treatment according to disease guidelines: no specific treatment is imposed by protocol (observational study) | Other | Prospective Observational Group, Retrospective Observational Group |
Primary outcome
Disease natural history
Time frame: Through survival, an average of 5 years
Collection of data on the natural history of endometrial stromal tumors
2 secondary outcomes
Disease diagnosis and classification
Time frame: At the time of diagnosis, an average of 1 month
Chemotherapy received treatment
Time frame: Through treatment completion, an average of 24 month
Results and safety
This study is still under way. Results are not available in the source record yet.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 2 Jan 2026.
- Background: PubMed 15047237Brooks SE, Zhan M, Cote T, Baquet CR. Surveillance, epidemiology, and end results analysis of 2677 cases of uterine sarcoma 1989-1999. Gynecol Oncol. 2004 Apr;93(1):204-8. doi: 10.1016/j.ygyno.2003.12.029.
- Background: PubMed 17013893Toro JR, Travis LB, Wu HJ, Zhu K, Fletcher CD, Devesa SS. Incidence patterns of soft tissue sarcomas, regardless of primary site, in the surveillance, epidemiology and end results program, 1978-2001: An analysis of 26,758 cases. Int J Cancer. 2006 Dec 15;119(12):2922-30. doi: 10.1002/ijc.22239.
- Background: PubMed 25595274Ali RH, Rouzbahman M. Endometrial stromal tumours revisited: an update based on the 2014 WHO classification. J Clin Pathol. 2015 May;68(5):325-32. doi: 10.1136/jclinpath-2014-202829. Epub 2015 Jan 16.
- Background: PubMed 7216172Tavassoli FA, Norris HJ. Mesenchymal tumours of the uterus. VII. A clinicopathological study of 60 endometrial stromal nodules. Histopathology. 1981 Jan;5(1):1-10. doi: 10.1111/j.1365-2559.1981.tb01761.x.
- Background: PubMed 11979087Dionigi A, Oliva E, Clement PB, Young RH. Endometrial stromal nodules and endometrial stromal tumors with limited infiltration: a clinicopathologic study of 50 cases. Am J Surg Pathol. 2002 May;26(5):567-81. doi: 10.1097/00000478-200205000-00003.
- Background: PubMed 24155223Su TF, Chao TK, Lee HS, Perng CL, Nieh S. Malignant potential of endometrial stromal tumor with limited infiltration: a case report. Int J Surg Pathol. 2014 Sep;22(6):559-63. doi: 10.1177/1066896913506934. Epub 2013 Oct 23.
- Background: PubMed 24944665Dong R, Pang Y, Mao H, Yang N, Liu P. Successful pregnancy following conservative management of low-grade endometrial stromal sarcoma: A case report. Oncol Lett. 2014 Apr;7(4):1039-1042. doi: 10.3892/ol.2014.1858. Epub 2014 Feb 7.
- Background: PubMed 25125393Choi MC, Kim G, Hwang YY. Fertility-sparing management combined with photodynamic therapy for endometrial stromal sarcoma: a case report. Photodiagnosis Photodyn Ther. 2014 Dec;11(4):533-6. doi: 10.1016/j.pdpdt.2014.07.007. Epub 2014 Aug 11.
- Background: PubMed 20955991Della Badia C, Karini H. Endometrial stromal sarcoma diagnosed after uterine morcellation in laparoscopic supracervical hysterectomy. J Minim Invasive Gynecol. 2010 Nov-Dec;17(6):791-3. doi: 10.1016/j.jmig.2010.07.001.
- Background: PubMed 21541824Park JY, Kim DY, Kim JH, Kim YM, Kim YT, Nam JH. The impact of tumor morcellation during surgery on the outcomes of patients with apparently early low-grade endometrial stromal sarcoma of the uterus. Ann Surg Oncol. 2011 Nov;18(12):3453-61. doi: 10.1245/s10434-011-1751-y. Epub 2011 May 4.
- Background: PubMed 18978112Shah JP, Bryant CS, Kumar S, Ali-Fehmi R, Malone JM Jr, Morris RT. Lymphadenectomy and ovarian preservation in low-grade endometrial stromal sarcoma. Obstet Gynecol. 2008 Nov;112(5):1102-8. doi: 10.1097/AOG.0b013e31818aa89a.
- Background: PubMed 21276609Dos Santos LA, Garg K, Diaz JP, Soslow RA, Hensley ML, Alektiar KM, Barakat RR, Leitao MM Jr. Incidence of lymph node and adnexal metastasis in endometrial stromal sarcoma. Gynecol Oncol. 2011 May 1;121(2):319-22. doi: 10.1016/j.ygyno.2010.12.363. Epub 2011 Jan 26.
- Individual participant dataSharing planned: Yes. Aggregate anonymized results will be available upon request at the end of the study
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part.
Paolo G Casali, MD study chair
Italian Sarcoma Group
13 sites in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
An observational study of Endometrial Stromal Tumors, run by Italian Sarcoma Group at 13 sites in Italy.
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 1 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 2 Jan 2026. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 13 sites in Italy. 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 Gianluca Ignazzi, PhD (+393335359192, gianluca.ignazzi@italiansarcomagroup.org), or a site near the patient. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Disease natural history (time frame: Through survival, an average of 5 years). 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 NCT02829437, which also lists 26 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 2 Jan 2026.