Endometrial CancerPhase 3XPORT-EC-042NCT05611931
Selinexor in Maintenance Therapy After Systemic Therapy for Participants With p53 Wild-Type, Advanced or Recurrent Endometrial Carcinoma
A Phase 3 study testing Selinexor in people with Endometrial Cancer, run by Karyopharm Therapeutics Inc at 185 sites in 17 countries.
Trial summary
The purpose of this study is to evaluate the efficacy and safety of selinexor as a maintenance treatment in patients with p53 wt endometrial carcinoma (EC), who have achieved a partial response (PR) or complete response (CR) (per Response Evaluation Criteria in Solid Tumors version 1.1 [RECIST v 1.1]) after completing… Read more about this study
- Who is it for?
- Ages 18 years and older
- Conditions the study is for
- Endometrial Cancer
- What is being tested?
- Selinexor
- Type of treatment
- Pill or oral medicine
- Could I receive a placebo?
- Yes, some participants may receive a placebo
- How many people
- 257 participants
- Where
- 185 sitesin 17 countries
- Study dates
- 18 Apr 2023to Jan 2028
- Phase
- Phase 3
- 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 years and older
- All sexes
- No healthy volunteers
- Adult, Older adult
Inclusion Criteria: Patients must meet all of the following inclusion criteria in order to be eligible to participate in this study:
- Adults (Aged ≥ 18 years)
- Histologically confirmed endometrial cancer (endometrioid, serous, undifferentiated, or carcinosarcoma sub-types) that is TP53 wild type by central NGS
- Must have completed at least 12 weeks of platinum-based chemotherapy (with or without immune checkpoint inhibitors), with a confirmed partial or complete response according to RECIST v1.1
- Must be able to initiate C1D1 within 3-8 weeks after last platinum dose
- Eastern Cooperative Oncology Group (ECOG) performance status of 0 or 1
- Adequate bone marrow function and organ function
Exclusion Criteria: Patients meeting any of the following exclusion criteria are not eligible to participate in this study:
- Uterine sarcomas, clear cell or small cell carcinoma with neuroendocrine differentiation
- Palliative radiotherapy administered within 14 days of intended C1D1
- Any gastrointestinal dysfunction that could interfere with the absorption of oral study therapy
- Serious psychiatric or medical conditions that could interfere with study participation or would make study involvement unreasonably hazardous
- Previous treatment with an XPO1 inhibitor
- Stable disease or disease progression after platinum-based chemotherapy
- Pregnancy, breastfeeding, or other legal/ethical restrictions to trial participation
- Known dMMR/MSI-H EC tumors that are medically eligible to receive an immune checkpoint inhibitor
Trial locations and contacts
185 sites in 17 countries.
185 sites in 17 countries
United States65 sites
Women's Cancer Care Associates, LLC
Albany, New York, 12208
Illinois Cancer Specialists
Arlington Heights, Illinois, 60005
Grady Hospital
Atlanta, Georgia, 30303
Emory University
Atlanta, Georgia, 30322
Georgia Cancer Center at Augusta University
Augusta, Georgia, 30912
USON - Texas Oncology, Austin Central
Austin, Texas, 78731
Intermountain Health St. Vincent Regional Hospital
Billings, Montana, 59101
The University of Alabama at Birmingham
Birmingham, Alabama, 35205
Tufts Medical Center
Boston, Massachusetts, 02111
Atrium Health Levine Cancer Institute
Charlotte, North Carolina, 28209
University of Virginia
Charlottesville, Virginia, 22908
MetroHealth
Cleveland, Ohio, 44109
Zangmeister Cancer Center
Columbus, Ohio, 43219
Parkland Health & Hospital System
Dallas, Texas, 75235
Texas Oncology - Dallas
Dallas, Texas, 75246
University of Texas Southwestern Medical Center
Dallas, Texas, 75390
UC DAVIS
Davis, California, 95616
Karmanos Cancer Institute
Detroit, Michigan, 48201
City of Hope National Medical Center
Duarte, California, 91010
Duke Cancer Center
Durham, North Carolina, 27710
Northwest Cancer Center
Dyer, Indiana, 46311
Oncology Associates of Oregon
Eugene, Oregon, 97401
NorthShore University Health System
Evanston, Illinois, 60201
Broward Health Medical Center
Fort Lauderdale, Florida, 33316
Goshen Health
Goshen, Indiana, 46526
Houston Methodist
Houston, Texas, 77030
St Vincent Hospital
Indianapolis, Indiana, 46260
University of Iowa
Iowa City, Iowa, 52242
City of Hope at Irvine Lennar
Irvine, California, 92618
St. Dominic's Gynecologic Oncology
Jackson, Mississippi, 39216
Midwest Ventures Group HCA MId America Division
Kansas City, Missouri, 64132
University of Tennessee Medical Center
Knoxville, Tennessee, 37920
Alliance Cancer Specialists
Langhorne, Pennsylvania, 19047
University of Arkansas for Medical Sciences
Little Rock, Arkansas, 72205
Cancer and Blood Specialty Clinic
Los Alamitos, California, 90720
UCLA - Women's Health Clinical Research Unit
Los Angeles, California, 90095
Long Beach Memorial Medical Center
Los Angeles, California, 90806
University of Wisconsin Hospital and Clinics
Madison, Wisconsin, 53792
University of Tennessee Health Science Center
Memphis, Tennessee, 38103
Mount Sinai Comprehensive Cancer Center
Miami Beach, Florida, 33140
NYU Langone Hospital-Long Island
Mineola, New York, 11501
USON - Minnesota Oncology Hematology
Minneapolis, Minnesota, 55404
University of Minnesota
Minneapolis, Minnesota, 55455
Northwell Health - Zuckerberg Cancer Center
New Hyde Park, New York, 11042
LSU Health Sciences Center New Orleans
New Orleans, Louisiana, 70119
Perlmutter Cancer Center at NYU Langone Health
New York, New York, 10016
Lenox Hill Hospital
New York, New York, 10075
University of Oklahoma Health Sciences Center
Oklahoma City, Oklahoma, 73104
Advent Health
Orlando, Florida, 32804
Stanford University
Palo Alto, California, 94304
Honor Health
Phoenix, Arizona, 85016
Magee - Women's Hospital
Pittsburgh, Pennsylvania, 15213
Allegheny Health Network - West Penn Hospital
Pittsburgh, Pennsylvania, 15224
Providence Portland Medical Center
Portland, Oregon, 97213
Northwell Health - Queens Cancer Center
Rego Park, New York, 11374
Center Of Hope
Reno, Nevada, 89511
University of Rochester
Rochester, New York, 14642
University of Utah
Salt Lake City, Utah, 84112
Texas Oncology - San Antonio
San Antonio, Texas, 78240
California Pacific Medical Center
San Francisco, California, 94109
Avera
Sioux Falls, South Dakota, 57105
ProMedica Flower Hospital
Sylvania, Ohio, 43560
Texas Oncology - The Woodlands
The Woodlands, Texas, 77380
Oklahoma Cancer Specialists and Research Institute, LLC
Tulsa, Oklahoma, 74146
Texas Oncology, PC, Tyler
Tyler, Texas, 75702
Spain21 sites
ICO Badalona
Badalona, 08916
Hospital Universitari Vall d' Hebrón
Barcelona, 08035
Hospital Clinic de Barcelona
Barcelona, 08036
Institut Catala d'Oncologia Hospitalet
Barcelona, 08908
Hospital Universitario Reina Sofía
Córdoba, 14004
Hospital Universitario Donostia
Donostia / San Sebastian, Gipuzkoa, 20014
Institut Catala d'Oncologia de Girona
Girona, 17007
Hospital Universitario Virgen de las Nieves
Granada, 18014
MD Anderson Cancer Center Madrid
Madrid, 28033
Hospital Universitario Ramón y Cajal
Madrid, 28034
Hospital Universitario Clinico San Carlos
Madrid, 28040
H 12 de Octubre
Madrid, 28041
Hospital Universitario La Paz
Madrid, 28046
Hospital Universitatrio Virgen de la Victoria
Málaga, 29010
Virgen de la Arrixaca University Clinical Hospital
Murcia, 30120
Hospital Universitario Virgen del Rocío
Seville, 41013
Instituto Valenciano de Oncología
Valencia, 46009
Hospital Clínico Universitario de Valencia
Valencia, 46010
Hospital LaFe Uacenlia
Valencia, 46026
Hospital Clínico Universitario Lozano Blesa
Zaragoza, Zaragoza, 50009
Hospital Miguel Servet
Zaragoza, 50009
Australia15 sites
Border Medical Oncology & Haematology
Albury, New South Wales, 2640
Box Hill Hospital - Eastern Health (Oncology)
Box Hill, Victoria, 3128
Macarthur Cancer Therapy Centre
Campbelltown, New South Wales, 2560
Chris O'Brien Lifehouse
Camperdown, New South Wales, 2050
Monash Health
Clayton, Victoria, 3168
Frankston Hospital
Frankston, Victoria, 3199
Central Coast LHD - Gosford & Wyong Hospitals
Gosford, New South Wales, 2250
Royal Hobart Hospital
Hobart, Tasmania, 7000
Cabrini Health
Malvern, Victoria, 3144
Newcastle Private Hospital
New Lambton Heights, New South Wales, 2305
Royal North Shore Hospital
Saint Leonards, New South Wales
ICON Cancer Centre Southport
Southport, Queensland, 4215
The Royal Adelaide Hospital
Southport, 5000
Toowoomba Hospital
Toowoomba, Queensland, 4350
Westmead Hospital
Wentworthville, New South Wales, 2145
Italy15 sites
IRCCS Azienda Ospedaliero Universitaria di Bologna
Bologna, 40138
ASST Spedali Civili Di Brescia
Brescia, 25123
IRCCS Istituto Romagnolo Per Lo Studio Del Tumori "Dino Amadori" - IRST S.R.L.
Meldola, 47014
San Raffaele Hospital
Milan, 20132
Istituto Nazionale dei Tumori IRCCS - MILANO S. C. Ginecologia Oncologica
Milan, 20133
Instituto Europeo di Oncologia
Milan, 20141
Humanitas San Pio X Hospital
Milan, 20159
Ospedale San Gerardo - Asst Monza
Monza, 20900
"Istituto Nazionale Tumori IRCCS "Fondazione G. Pascale" - NAPOLI Struttura Complessa Oncologia Medica Uro-Ginecologica"
Naples, 20133
Istituto Oncologico Veneto
Padova, 35128
Universita di Pisa
Pisa, 56127
Nuovo Ospedale di Prato
Prato, 59100
Fondazione Policlinico Universitario Agostino Gemelli - ROMA
Roma, 00168
Ospedale Ostetrico Ginecologico Sant'Anna
Torino, 10124
AO Ordine Mauriziano
Torino, 10128
Germany11 sites
Charite Berlin Universitatsmedizin
Berlin, 13353
Universitätsklinikum Hamburg Eppendorf
Hamburg, 20246
University Hospital Dresden
Kiel, 01307
Universitatsklinikum Schleswig-Holstein
Kiel, 24105
Helios Klinikum Krefeld
Krefeld, 47805
Universitätsklinik Leipzig
Leipzig, 04103
Universitätsfrauenklinik Mainz
Mainz, 55131
Universitätsmedizin Mannheim
Mannheim, 68167
Klinik und Poliklinik fur Frauenheilkunde und Geburtshilfe GroBhadern
Munich, 80337
Klinikum Südstadt Rostock
Rostock, 18059
Universitätsfrauenklinik Ulm
Ulm, 89075
Georgia8 sites
High Technology Hospital Medcenter
Batumi, 6000
Todua Clinic
Tbilisi, 0112
LTD New Hospitals
Tbilisi, 0114
Tbilisi Cancer Center
Tbilisi, 0156
JSC - K.Eristavi National Center of Experimental and Clinical Surgery
Tbilisi, 0159
Caucasus Medical Centre
Tbilisi, 0186
LTD Innova Medical Center
Tbilisi, 0186
Multiprofile Clinic "Consilium Medulla"
Tbilisi, 0186
Turkey (Türkiye)7 sites
Çukurova University
Adana, 01330
Adana Baskent Hospital
Adana, 34920
Hacettepe University Oncology Hospital
Ankara, 06230
Memorial Ankara Hospital
Ankara, 06520
Ankara Baskent Hospital
Çankaya, Ankara, 34093
Cerrahpasa University
Istanbul, 34098
Acibadem Atakent Hospital
Istanbul, 34303
Canada6 sites
Cross Cancer Institute
Edmonton, Alberta, T6G 1Z2
Centre Hospitalier de l'Université de Montréal
Montreal, Quebec, H2X 0C1
McGill University Health Centre (MUHC)
Montreal, Quebec, H4A3J1
Hospital Maisonneuve-Rosemont
Montreal, Quebec
Princess Margaret
Toronto, Ontario, M5G 2M9
Sunnybrook Research Institute
Toronto, Ontario, M9L 2H9
Taiwan6 sites
Kaohsiung Chang Gung Memorial Hospital
Kaohsiung City, 833401
TaiChung Veterans General Hospital
Taichung, 407219
Chi Mei Medical Center
Tainan, 71004
Mackay Memorial Hospital
Taipei, 104217
Taipei Medical University- Shuang Ho Hospital, Ministry of Health and Welfare
Taipei, 23561
Chang Gung Memorial Hospital
Taoyuan City, 333
Belgium5 sites
Cliniques Universitaires St. Luc
Brussels, 1200
AZ Sint Lucas
Ghent, 9000
UZ Leuven
Leuven, 3000
CHU Ambroise Pare
Mons, 7000
CHU UCL Namur, Site Sainte-Elisabeth
Namur, 5000
Czechia5 sites
University Hospital Brno
Brno, 60200
University Hospital Ostrava
Ostrava, 70852
UH Královské Vinohrady
Prague, 10034
General University Hospital in Prague
Prague, 12851
Hospital Na Bulovce
Prague, 18100
Ireland5 sites
Cork University Hospital
Cork, T12 DC4A
St. Vincent's University Hospital
Dublin, Elm Park, D04 T6F4
St. James Hospital
Dublin, D08 NHY1
Galway University
Galway, H91 YR71
University Hospital Waterford
Waterford, X91 ER8E
Israel4 sites
Hillel-Yaffe Medical Center
Hadera, 38100
Wolfson Medical Center
Holon
Hadassah Medical Center
Jerusalem, 91120
Sheba Medical Center
Ramat Gan, 52621
Slovakia4 sites
St. Elisabeth Cancer Institute
Bratislava, 81250
UH Bratislava
Bratislava, 82606
National Cancer Institute
Bratislava, 83310
UH Trenčín
Trenčín, 91101
Greece3 sites
Alexandra Hospital
Athens, 11528
Hygeia Hospital
Athens, 15123
Euromedica General Clinic
Thessaloniki, 54645
South Korea3 sites
CHA University/Bundang CHA General Hospital
Seongnam-si, 59
Seoul National University Hospital
Seoul, 03080
Korea University Anam Hospital
Seoul, 73
Hungary2 sites
Unit of Gynecol.Oncol., Dept.Obstet.Gynecol., Clinical Center, University of Debrecen
Debrecen, 4032
Petz Aladár University Teaching Hospital
Győr, 9024
About this study
Official title: A Phase 3, Randomized, Placebo-Controlled, Double-Blind, Multicenter Trial of Selinexor in Maintenance Therapy After Systemic Therapy for Patients With p53 Wild-Type, Advanced or Recurrent Endometrial Carcinoma
The purpose of this study is to evaluate the efficacy and safety of selinexor as a maintenance treatment in patients with p53 wt endometrial carcinoma (EC), who have achieved a partial response (PR) or complete response (CR) (per Response Evaluation Criteria in Solid Tumors version 1.1 [RECIST v 1.1]) after completing at least 12 weeks of platinum-based therapy. A total of 276 participants will be enrolled in the study and randomized in a 1:1 ratio to maintenance therapy with either selinexor or placebo.
- Conditions
- Endometrial Cancer
- Being tested
- Selinexor, Matching Placebo for selinexor
- Keywords
- Selinexor, KPT-330, Advanced or Recurrent Endometrial Carcinoma, XPORT-EC, ENGOT-EN20, GOG-3083, XPORT-EC-042, p53 wild-type, Tumor protein 53 wild-type
- Medical subject headings
- Endometrial Neoplasms
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
SelinexorDrug
Also called KPT-330
Dose: 60 mg (3 tablets); Dosage form: film-coated, immediate-release tablet of 20 mg each; Route of administration: oral
Matching Placebo for selinexorDrug
Dose:60 mg (3 tablets); Dosage form: film-coated, immediate-release tablet of 20 mg each; Route of administration: oral
| Study group | Role | What they receive |
|---|---|---|
| Selinexor | Experimental | Participants will receive a fixed dose of selinexor 60 milligrams (mg) oral tablets once weekly (QW) on Days 1, 8, 15, and 22 of each 28-day cycle. Receives: Drug: Selinexor |
| Placebo | Placebo comparator | Participants will receive matching placebo for selinexor oral tablets QW on Days 1, 8, 15, and 22 of each 28-day cycle. Receives: Drug: Matching Placebo for selinexor |
What is being measured
The primary outcome is the main question the study is designed to answer.
Investigator assessed Progression Free Survival (PFS) per RECIST v1.1
Measured: From randomization until disease progression (PD) or death, whichever occurs first (up to 34 months)
Secondary outcomes (7)
Overall Survival (OS)
Time from randomization to death due to any cause
Measured: Up to 34 months
Safety and tolerability of study drug (selinexor and placebo)
The safety and tolerability of study drug (selinexor and placebo) will be evaluated based on adverse event (AE) reports, physical examination results (including vital signs), and clinical laboratory results, by means of the occurrence, nature, and severity of AEs via Common Terminology Criteria for Adverse Events (CTCAE) v. 5.0.
Measured: From start of study drug administration up to 34 months
Time to First Subsequent Therapy (TFST)
Time from randomization until date of initiation of first therapy after discontinuation of study drug or death, whichever occurs first
Measured: From randomization until date of initiation of first therapy after discontinuation of study drug or death, whichever occurs first (up to 34 months)
Time to Second Subsequent Therapy (TSST)
Time from randomization until date of initiation of second therapy after discontinuation of study drug or death, whichever occurs first
Measured: From randomization until date of initiation of second therapy after discontinuation of study drug or death, whichever occurs first (up to 34 months)
Progression-free survival after initiating a next-line treatment (PFS2)
Time from randomization until the progression event after initiating a next-line treatment or death due to any cause, whichever occurs first
Measured: From randomization until the next-line progression event or death due to any cause, up to 34 months
Progression-free Survival (PFS) as assessed by a Blinded Independent Central Review (BICR), per RECIST v1.1
Measured: From randomization until disease progression (PD) or death, whichever occurs first (up to 34 months)
EuroQol-5 Dimensions-5 Levels Quality of Life Questionnaire (EQ-5D-5L)
EQ-5D-5L is a generic questionnaire that assesses health status as perceived by the patient across 5 categories (mobility, self-care, usual activities, pain/discomfort and anxiety/depression) and overall.
Measured: From baseline and at specified timepoints up to 34 months
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted10 Nov 2022
- Study start18 Apr 2023
- Primary completion22 May 2026
- Study completionJan 2028 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (3)Papers the sponsor has linked to this study.
- Other trials for Endometrial CancerStudies 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
- Interventional
- Phase
- Phase 3
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Double blind
- Who is masked
- Participant, Investigator
- Enrolment
- 257 participants (actual)
Sponsor and investigators
- Lead sponsor
- Karyopharm Therapeutics Inc
- Sponsor type
- Industry (pharma, biotech, devices)
- Collaborators
- GOG Foundation, European Network of Gynaecological Oncological Trial Groups (ENGOT), Belgian Gynaecological Oncology Group, North Eastern German Society of Gynaecological Oncology, The Central and Eastern European Gynecologic Oncology Group, Israeli Society of Gynecologic Oncology, Australia New Zealand Gynaecological Oncology Group, Multicenter Italian Trials in Ovarian Cancer (MITO), Grupo Español de Investigación en Cáncer de Ovario, Hellenic Cooperative Oncology Group, Cancer Trials Ireland (CTI), Mario Negri Gynecologic Oncology group (MaNGO)
- Responsible party
- Sponsor
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT05611931
- Sponsor's protocol ID
- XPORT-EC-042
- Other IDs
- GOG-3083, ENGOT-EN20
- Acronym
- XPORT-EC-042
- Status last verified
- Oct 2026
- First submitted
- 3 Nov 2022
- Last updated
- 29 Oct 2026
- Results posted
- No
- Data monitoring committee
- Yes
- FDA-regulated drug
- Yes
- FDA-regulated device
- No
- Individual data sharing
- Undecided
Publications
Secord AA, Powell MA, McAlpine J. Molecular Characterization and Clinical Implications of Endometrial Cancer. Obstet Gynecol. 2025 Nov 1;146(5):660-671. doi: 10.1097/AOG.0000000000006080. Epub 2025 Sep 18.
PubMed 40966692Makker V, Perez-Fidalgo JA, Valabrega G, Hamilton E, Van Gorp T, Sehouli J, Reginacova K, Richardson DL, Perri T, Oza AM, Miller DS, Alia EMG, De Giorgi U, Henry S, Spitz DL, Wimberger P, Bednarikova M, Chon HS, Martinez-Garcia J, Pisano C, Berek JS, Romero I, Scambia G, Farinas-Madrid L, Buscema J, Schochter F, Li K, Kalyanapu P, Walker CJ, Vergote I. Long-term follow-up of efficacy and safety of selinexor maintenance treatment in patients with TP53wt advanced or recurrent endometrial cancer: A subgroup analysis of the ENGOT-EN5/GOG-3055/SIENDO study. Gynecol Oncol. 2024 Jun;185:202-211. doi: 10.1016/j.ygyno.2024.05.016. Epub 2024 Jun 3.
PubMed 38834399Vergote I, Perez Fidalgo A, Valabrega G, Monk BJ, Herzog T, Cibula D, Colombo N, Pothuri B, Sehouli J, Korach J, Barlin J, Papadimitriou CA, van Gorp T, Richardson D, McCarthy M, Antill Y, Mirza MR, Li K, Kalyanapu P, Slomovitz B, Coleman RL. ENGOT-EN20/GOG-3083/XPORT-EC-042 - A phase III, randomized, placebo-controlled, double-blind, multicenter trial of selinexor in maintenance therapy after systemic therapy for patients with p53 wild-type, advanced, or recurrent endometrial carcinoma: rationale, methods, and trial design. Int J Gynecol Cancer. 2024 Aug 5;34(8):1283-1289. doi: 10.1136/ijgc-2024-005412.
PubMed 38627035
Study at a glance
From the registry record, last updated by the sponsor on 29 Oct 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- A Phase 3, Randomized, Placebo-Controlled, Double-Blind, Multicenter Trial of Selinexor in Maintenance Therapy After Systemic Therapy for Patients With p53 Wild-Type, Advanced or Recurrent Endometrial Carcinoma
- ClinicalTrials.gov ID
- NCT05611931
- Acronym / sponsor ID
- XPORT-EC-042 / XPORT-EC-042
- Conditions
- Endometrial Cancer
- Keywords
- Selinexor, KPT-330, Advanced or Recurrent Endometrial Carcinoma, XPORT-EC, ENGOT-EN20, GOG-3083, XPORT-EC-042, p53 wild-type
- Phase
- Phase 3
- Study type
- Interventional
- Recruitment status
- Active, not recruiting
- Enrolment
- 257 participants (actual)
- Lead sponsor
- Karyopharm Therapeutics IncIndustry (pharma, biotech, devices)
- Collaborators
- GOG Foundation, European Network of Gynaecological Oncological Trial Groups (ENGOT), Belgian Gynaecological Oncology Group, North Eastern German Society of Gynaecological Oncology, The Central and Eastern European Gynecologic Oncology Group, Israeli Society of Gynecologic Oncology, Australia New Zealand Gynaecological Oncology Group, Multicenter Italian Trials in Ovarian Cancer (MITO), Grupo Español de Investigación en Cáncer de Ovario, Hellenic Cooperative Oncology Group, Cancer Trials Ireland (CTI), Mario Negri Gynecologic Oncology group (MaNGO)
- Study start
- 18 Apr 2023 (actual)
- Primary completion
- 22 May 2026 (actual)
- Study completion
- Jan 2028 (estimated)
- First posted
- 10 Nov 2022 (actual)
- 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.
The purpose of this study is to evaluate the efficacy and safety of selinexor as a maintenance treatment in patients with p53 wt endometrial carcinoma (EC), who have achieved a partial response (PR) or complete response (CR) (per Response Evaluation Criteria in Solid Tumors version 1.1 [RECIST v 1.1]) after completing at least 12 weeks of platinum-based therapy. A total of 276 participants will be enrolled in the study and randomized in a 1:1 ratio to maintenance therapy with either selinexor or placebo.
Study design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Double blind (participant, investigator)
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| Selinexor | Experimental | Drug: SelinexorParticipants will receive a fixed dose of selinexor 60 milligrams (mg) oral tablets once weekly (QW) on Days 1, 8, 15, and 22 of each 28-day cycle. |
| Placebo | Placebo comparator | Drug: Matching Placebo for selinexorParticipants will receive matching placebo for selinexor oral tablets QW on Days 1, 8, 15, and 22 of each 28-day cycle. |
Who may qualify
- Ages
- 18 years and older
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
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 |
|---|---|---|
| SelinexorAlso: KPT-330Dose: 60 mg (3 tablets); Dosage form: film-coated, immediate-release tablet of 20 mg each; Route of administration: oral | Drug | Selinexor |
| Matching Placebo for selinexorDose:60 mg (3 tablets); Dosage form: film-coated, immediate-release tablet of 20 mg each; Route of administration: oral | Drug | Placebo |
Primary outcome
Investigator assessed Progression Free Survival (PFS) per RECIST v1.1
Time frame: From randomization until disease progression (PD) or death, whichever occurs first (up to 34 months)
7 secondary outcomes
Overall Survival (OS)
Time frame: Up to 34 months
Safety and tolerability of study drug (selinexor and placebo)
Time frame: From start of study drug administration up to 34 months
Time to First Subsequent Therapy (TFST)
Time frame: From randomization until date of initiation of first therapy after discontinuation of study drug or death, whichever occurs first (up to 34 months)
Time to Second Subsequent Therapy (TSST)
Time frame: From randomization until date of initiation of second therapy after discontinuation of study drug or death, whichever occurs first (up to 34 months)
Progression-free survival after initiating a next-line treatment (PFS2)
Time frame: From randomization until the next-line progression event or death due to any cause, up to 34 months
Progression-free Survival (PFS) as assessed by a Blinded Independent Central Review (BICR), per RECIST v1.1
Time frame: From randomization until disease progression (PD) or death, whichever occurs first (up to 34 months)
EuroQol-5 Dimensions-5 Levels Quality of Life Questionnaire (EQ-5D-5L)
Time frame: From baseline and at specified timepoints up to 34 months
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 29 Oct 2026.
- Derived from this study: PubMed 40966692Secord AA, Powell MA, McAlpine J. Molecular Characterization and Clinical Implications of Endometrial Cancer. Obstet Gynecol. 2025 Nov 1;146(5):660-671. doi: 10.1097/AOG.0000000000006080. Epub 2025 Sep 18.
- Derived from this study: PubMed 38834399Makker V, Perez-Fidalgo JA, Valabrega G, Hamilton E, Van Gorp T, Sehouli J, Reginacova K, Richardson DL, Perri T, Oza AM, Miller DS, Alia EMG, De Giorgi U, Henry S, Spitz DL, Wimberger P, Bednarikova M, Chon HS, Martinez-Garcia J, Pisano C, Berek JS, Romero I, Scambia G, Farinas-Madrid L, Buscema J, Schochter F, Li K, Kalyanapu P, Walker CJ, Vergote I. Long-term follow-up of efficacy and safety of selinexor maintenance treatment in patients with TP53wt advanced or recurrent endometrial cancer: A subgroup analysis of the ENGOT-EN5/GOG-3055/SIENDO study. Gynecol Oncol. 2024 Jun;185:202-211. doi: 10.1016/j.ygyno.2024.05.016. Epub 2024 Jun 3.
- Derived from this study: PubMed 38627035Vergote I, Perez Fidalgo A, Valabrega G, Monk BJ, Herzog T, Cibula D, Colombo N, Pothuri B, Sehouli J, Korach J, Barlin J, Papadimitriou CA, van Gorp T, Richardson D, McCarthy M, Antill Y, Mirza MR, Li K, Kalyanapu P, Slomovitz B, Coleman RL. ENGOT-EN20/GOG-3083/XPORT-EC-042 - A phase III, randomized, placebo-controlled, double-blind, multicenter trial of selinexor in maintenance therapy after systemic therapy for patients with p53 wild-type, advanced, or recurrent endometrial carcinoma: rationale, methods, and trial design. Int J Gynecol Cancer. 2024 Aug 5;34(8):1283-1289. doi: 10.1136/ijgc-2024-005412.
- Individual participant dataSharing planned: Undecided
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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. This study is not recruiting at the moment.
The record lists no contact. Use the official record to reach the sponsor.
185 sites in 17 countries: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A Phase 3 study testing Selinexor in people with Endometrial Cancer, run by Karyopharm Therapeutics Inc at 185 sites in 17 countries.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
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: under way, not looking for participants, as of the sponsor's last update on 29 Oct 2026. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 185 sites in United States, Spain, Australia, Italy, Germany and 12 more countries. 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. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
What does this phase mean?
Phase 3 studies compare the treatment with the current standard treatment or a placebo in a large group, to confirm how well it works and watch for side effects.
Not every study follows the same path, and some studies (observational studies, device studies) have no phase.
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?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Investigator assessed Progression Free Survival (PFS) per RECIST v1.1 (time frame: From randomization until disease progression (PD) or death, whichever occurs first (up to 34 months)). 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 NCT05611931, which also lists 3 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 29 Oct 2026.