Endometrial CancerPhase 2/3NCT05797831
Study of Navtemadlin as Maintenance Therapy in TP53WT Advanced or Recurrent Endometrial Cancer
A Phase 2/3 study testing Navtemadlin in people with Endometrial Cancer, run by Kartos Therapeutics, Inc. at 83 sites in 17 countries.
Trial summary
This study evaluates navtemadlin as maintenance treatment for patients with advanced or recurrent endometrial cancer (EC) who have achieved complete response or partial response on chemotherapy. The study will be conducted in 2 parts. Read more about this study
- Who is it for?
- Ages 18 years and older, women only
- Conditions the study is for
- Endometrial Cancer
- What is being tested?
- Navtemadlin
- Type of treatment
- Pill or oral medicine
- Could I receive a placebo?
- Yes, some participants may receive a placebo
- How many people
- 268 participants
- Where
- 83 sitesin 17 countries
- Study dates
- 17 Jul 2023to Jul 2027
- Phase
- Phase 2/3
- 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
- Women only
- No healthy volunteers
- Adult, Older adult
Who may be able to join
- ECOG 0-1
- Histologically or cytologically confirmed diagnosis of endometrial cancer documented as TP53WT
- Subjects with advanced or recurrent disease must have completed a single line of up to 6 cycles of taxane-platinum based chemo and achieved a CR or PR per RECIST V1.1
- Adequate hematologic, hepatic and renal function (within 14 days)
Who cannot join
- Has any sarcomas or small-cell carcinomas with neuroendocrine differentiation
- Prior immune therapy, cytokine therapy, or any investigational therapy (within 28 days)
- Indwelling surgical drains
- Grade 2 or higher QTc prolongation
- History of major organ transplant
- History of bleeding diathesis; major hemorrhage or intracranial hemorrhage (within 24 weeks)
Trial locations and contacts
83 sites in 17 countries. Contact the study team or a site near you to ask about taking part.
83 sites in 17 countries
United States19 sites, 19 recruiting
- Recruiting
Northside Hospital
Atlanta, Georgia, 30342
- Recruiting
Texas Oncology-Austin Central
Austin, Texas, 78745
- Recruiting
OhioHealth Institute
Columbus, Ohio, 43214
- Recruiting
Oncology Associates of Oregon
Eugene, Oregon, 97401
- Recruiting
Parkview Research Center
Fort Wayne, Indiana, 46845
- Recruiting
Texas Oncology-Fort Worth Cancer Center
Fort Worth, Texas, 76104
- Recruiting
Dr. Sudarshan K. Sharma, Ltd.
Hinsdale, Illinois, 60521
- Recruiting
Indiana University
Indianapolis, Indiana, 46202
- Recruiting
Women's Cancer Center of Nevada
Las Vegas, Nevada, 89106
- Recruiting
Minnesota Oncology Hematology, P.A.
Minneapolis, Minnesota, 55404
- Recruiting
FirstHealth Carolinas
Pinehurst, North Carolina, 28374
- Recruiting
Northwest Cancer Specialists
Portland, Oregon, 97227
- Recruiting
Texas Oncology-San Antonio Medical Center
San Antonio, Texas, 78130
- Recruiting
St. Joseph
Savannah, Georgia, 31405
- Recruiting
Maryland Oncology Hematology, P.A.
Silver Spring, Maryland, 20904
- Recruiting
Washington University School of Medicine
St Louis, Missouri, 63108
- Recruiting
Oklahoma Cancer Specialists and Research Institute
Tulsa, Oklahoma, 74146
- Recruiting
Kaiser Permanente Center
Vallejo, California, 94589
- Recruiting
Good Samaritan Hospital Medical Center
West Islip, New York, 11795
Italy13 sites, 13 recruiting
- Recruiting
A.O. Cannizzaro
Catania, 95126
- Recruiting
IRCCS Istituto Romangolo per lo Studio dei Tumori "Dino Amadori"
Forlì, 47014
- Recruiting
Ospedale Policlinico San Martino
Genoa, 16132
- Recruiting
ASST di Lecco-Ospedale Alessandro Manzoni
Lecco, 23900
- Recruiting
Ospedale San Luca
Lucca, 55100
- Recruiting
Osp. Niguarda
Milan, 20162
- Recruiting
University Hospital of Parma
Parma, 43126
- Recruiting
Ospedale Guglielmo da Saliceto
Piacenza, 29121
- Recruiting
Ospedale di Prato S. Stefano
Prato, 59100
- Recruiting
Ospedale Santa Maria delle Croci
Ravenna, 48121
- Recruiting
"Azienda Unità Sanitaria Locale della Romagna - Hospital ""Infermi"" of Rimini Oncology Department"
Rimini, 47923
- Recruiting
Policlinico Umberto
Rome, 00161
- Recruiting
Ospedale Filippo Del Ponte
Varese, 21110
Poland9 sites, 9 recruiting
- Recruiting
Białostockie Centrum Onkologii
Bialystok, 15-027
- Recruiting
Szpitale Pomorskie
Gdansk, 80-210
- Recruiting
Uniwersyteckie Centrum Kliniczne
Gdansk, 80-214
- Recruiting
NIO-PIB Oddzial w Gliwicach
Gliwice, 44-102
- Recruiting
Centrum Badań klinicznych Jagiellońskie Centrum Innowacji
Krakow, 31-115
- Recruiting
Siedleckie Centrum Onkologii
Olsztyn, 10-228
- Recruiting
Uniwersytecki Szpital
Poznan, 60-569
- Recruiting
NIO-PIB Klinika Gine-Onk
Warsaw, 02-781
- Recruiting
Lower Silesian Oncology, Pulmonology and Hematology Center, Department of Oncological Gynecology
Wroclaw, 53-413
Spain9 sites, 9 recruiting
- Recruiting
CHUAC (Hospital de Coruña)
A Coruña, 15006
- Recruiting
Hospital del Mar
Barcelona, 08003
- Recruiting
Hospital Galdakao-Usansolo
Galdakao, 48960
- Recruiting
Hospital Universitario de Jaen
Jaén, 23007
- Recruiting
H.G.U. Jerez de la Frontera
Jerez de la Frontera, 11407
- Recruiting
Hospital U Insular de GC
Las Palmas, 35016
- Recruiting
Hospital de Leon
León, 24008
- Recruiting
HCU Santiago de Compostela
Santiago de Compostela, 15706
- Recruiting
Hospital Universitario de Valme
Seville, 41014
Romania7 sites, 7 recruiting
- Recruiting
Bucharest CF2 Hospital
Bucharest, 012244
- Recruiting
Ovidius Clinical Hospital SRL
Constanța, 905900
- Recruiting
Onco Clinic Consult S.A.
Craiova, 200094
- Recruiting
Oncology Center "Sf. Nectarie"
Craiova, 200542
- Recruiting
Gral Medical S.R.L. - Oncofort Hospital
Piteşti, 110283
- Recruiting
Oncocenter, Oncology Clinic SRL
Timișoara, 300166
- Recruiting
SC Oncomed SRL
Timișoara, 300239
Austria3 sites, 3 recruiting
- Recruiting
University Hospital Graz, Department of Gynecology and Obstetrics
Graz, 8036
- Recruiting
Medizinische Universität Innsbruck
Innsbruck, 6020
- Recruiting
Medizinische Universität Wien
Vienna, 1090
Georgia3 sites, 3 recruiting
- Recruiting
LTD High Technology hospital Medcenter
Batumi, 6000
- Recruiting
American Hospital Network LLC
Tbilisi, 0102
- Recruiting
Caucasus Medical Centre
Tbilisi, 0186
Israel3 sites, 3 recruiting
- Recruiting
Rambam Medical Center
Haifa, Rambam Medical Center
- Recruiting
Shaare Zedek Medical Center
Jerusalem, 9103102
- Recruiting
Sourasky Medical Center
Tel Aviv, 6423906
Norway3 sites, 3 recruiting
- Recruiting
Southern Hospital Sorlandet
Kristiansand, 4604
- Recruiting
Oslo University Hospital HF
Oslo, 0379
- Recruiting
Sykehusapotek Nord Tromsø
Tromsø, 9038
Canada2 sites, 2 recruiting
- Recruiting
Cross Cancer Institute
Edmonton, T6G 1Z2
- Recruiting
CHUM - University of Montreal Hospital Centre
Montreal, H2X 3E4
Finland2 sites, 2 recruiting
- Recruiting
Kuopio University Hospital
Kuopio, 70200
- Recruiting
Turku University Hospital
Turku, 20520
Hungary2 sites, 2 recruiting
- Recruiting
National Institute of Oncology
Budapest, H-1122
- Recruiting
University of Debrecen Clinical Center
Debrecen, 4032
Lithuania2 sites, 2 recruiting
- Recruiting
Health Sciences Kaunas Clinics
Kaunas, LT-45434
- Recruiting
Nation Cancer Institute of Lithuania, Vilnius
Vilnius, LT-08660
Slovenia2 sites, 2 recruiting
- Recruiting
Institute of Oncology Ljubljana
Ljubljana, 1000
- Recruiting
University Clinical Center Maribor
Maribor, 2000
Sweden2 sites, 2 recruiting
- Recruiting
Linkoping University Hospital
Linköping, 581 85
- Recruiting
Karolinska University Hospital
Stockholm, SE-171 76
Denmark1 site, 1 recruiting
- Recruiting
Odense University Hospital
Odense, DK-5000
About this study
Official title: A Phase 2/3 Study of Navtemadlin as Maintenance Therapy in Subjects With TP53WT Advanced or Recurrent Endometrial Cancer Who Responded to Chemotherapy
This study evaluates navtemadlin as maintenance treatment for patients with advanced or recurrent endometrial cancer (EC) who have achieved complete response or partial response on chemotherapy.
The study will be conducted in 2 parts. Part 1 will evaluate safety and efficacy of two different doses of navtemadlin alongside an observational control arm to determine the Phase 3 navtemadlin dose. Part 2 will evaluate the efficacy and safety of navtemadlin Phase 3 dose compared to placebo.
- Conditions
- Endometrial Cancer
- Being tested
- Navtemadlin, Navtemadlin Placebo
- Keywords
- navtemadlin
- Medical subject headings
- Endometrial Neoplasms
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
NavtemadlinDrug
Also called KRT-232
Navtemadlin is an experimental MDM2 anticancer drug taken by mouth
Navtemadlin PlaceboDrug
Navtemadlin placebo is a placebo that is the same in appearance to navtemadlin drug taken by mouth
| Study group | Role | What they receive |
|---|---|---|
| Part 1 Arm 1 | Experimental | Navtemadlin administered orally at 180 mg, once daily (QD) on Days 1-7 in a 28-day treatment cycles. Receives: Drug: Navtemadlin |
| Part 1 Arm 2 | Experimental | Navtemadlin administered orally at 240 mg, once daily (QD) on Days 1-7 in a 28-day treatment cycles. Receives: Drug: Navtemadlin |
| Part 1 Arm 3 | No intervention | Observational control ("watch and wait") on a 28-day cycle. |
| Part 2 Arm A | Experimental | Navtemadlin administered orally at 180 mg once daily (QD) on Days 1-7 in a 28-day treatment cycles. Receives: Drug: Navtemadlin |
| Part 2 Arm B | Experimental | Navtemadlin administered orally at 240 mg once daily (QD) on Days 1-7 in a 28-day treatment cycles. Receives: Drug: Navtemadlin |
| Part 2 Arm C | Placebo comparator | Placebo administered orally at 180 mg once daily (QD) on Days 1-7 in a 28-day administration cycle. Receives: Drug: Navtemadlin Placebo |
| Part 2 Arm D | Placebo comparator | Placebo administered orally at 240 mg once daily (QD) on Days 1-7 in a 28-day administration cycle. Receives: Drug: Navtemadlin Placebo |
What is being measured
The primary outcome is the main question the study is designed to answer.
Part 1: To determine the navtemadlin Phase 3 dose
Safety review committee (SRC) will determine the navtemadlin Phase 3 dose for Part 2 based on safety data from Part 1
Measured: 12 months
Part 2: To compare progression-free (PFS) survival by independent review committee (IRC) between navtemadlin and placebo
PFS defined as the time from randomization to disease progression by IRC or death, whichever occurs first
Measured: 50 months
Secondary outcomes (6)
Part 1: To evaluate the treatment effect of navtemadlin on PFS by IRC and investigator assessment
PFS defined as the time from randomization to disease progression by IRC/investigator assessment or death, whichever occurs first
Measured: 50 months
Part 2: To evaluate the treatment effect of navtemadlin on the time to first subsequent treatment (TFST)
TFST defined as the time from randomization to initiation of first subsequent anticancer therapy or death, whichever occurs first
Measured: 50 months
Parts 1 and 2: To determine the pharmacokinetic (PK) profile of navtemadlin
Will determine the Maximum observed concentration (Cmax)
Measured: 1 day
Parts 1 and 2: To determine the pharmacokinetic (PK) profile of navtemadlin
Will determine the area under the plasma concentration versus time curve (AUC)
Measured: 1 day
Parts 1 and 2: To determine the pharmacokinetic (PK) profile of navtemadlin
Will determine the time of maximum plasma concentration (Tmax)
Measured: 1 day
Parts 1 and 2: To evaluate the treatment effect of navtemadlin on the disease control rate (DCR)
Best response of complete response (CR), partial response (PR) or stable disease (SD) by IRC/investigator assessment among subjects with PR as best response from prior chemotherapy
Measured: 50 months
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted4 Apr 2023
- Study start17 Jul 2023
- Primary completionAug 2025 (estimated)
- Study completionJul 2027 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- 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 2/3
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Quadruple blind
- Who is masked
- Participant, Care provider, Investigator, Outcomes assessor
- Enrolment
- 268 participants (estimated)
Sponsor and investigators
- Lead sponsor
- Kartos Therapeutics, Inc.
- Sponsor type
- Industry (pharma, biotech, devices)
- Collaborators
- European Network of Gynaecological Oncological Trial Groups (ENGOT), GOG Foundation
- Responsible party
- Sponsor
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT05797831
- Sponsor's protocol ID
- KRT-232-118
- Other IDs
- ENGOT en-21, GOG-3089
- Status last verified
- Apr 2024
- First submitted
- 7 Mar 2023
- Last updated
- 2 May 2024
- Results posted
- No
- Data monitoring committee
- Yes
- FDA-regulated drug
- Yes
- FDA-regulated device
- No
Study at a glance
From the registry record, last updated by the sponsor on 2 May 2024. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- A Phase 2/3 Study of Navtemadlin as Maintenance Therapy in Subjects With TP53WT Advanced or Recurrent Endometrial Cancer Who Responded to Chemotherapy
- ClinicalTrials.gov ID
- NCT05797831
- Acronym / sponsor ID
- KRT-232-118
- Conditions
- Endometrial Cancer
- Keywords
- navtemadlin
- Phase
- Phase 2/3
- Study type
- Interventional
- Recruitment status
- Recruiting
- Enrolment
- 268 participants (estimated)
- Lead sponsor
- Kartos Therapeutics, Inc.Industry (pharma, biotech, devices)
- Collaborators
- European Network of Gynaecological Oncological Trial Groups (ENGOT), GOG Foundation
- Study start
- 17 Jul 2023 (actual)
- Primary completion
- Aug 2025 (estimated)
- Study completion
- Jul 2027 (estimated)
- First posted
- 4 Apr 2023 (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.
This study evaluates navtemadlin as maintenance treatment for patients with advanced or recurrent endometrial cancer (EC) who have achieved complete response or partial response on chemotherapy.
The study will be conducted in 2 parts. Part 1 will evaluate safety and efficacy of two different doses of navtemadlin alongside an observational control arm to determine the Phase 3 navtemadlin dose. Part 2 will evaluate the efficacy and safety of navtemadlin Phase 3 dose compared to placebo.
Study design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Quadruple blind (participant, care provider, investigator, outcomes assessor)
- Number of arms
- 7
| Arm | Type | Receives |
|---|---|---|
| Part 1 Arm 1 | Experimental | Drug: NavtemadlinNavtemadlin administered orally at 180 mg, once daily (QD) on Days 1-7 in a 28-day treatment cycles. |
| Part 1 Arm 2 | Experimental | Drug: NavtemadlinNavtemadlin administered orally at 240 mg, once daily (QD) on Days 1-7 in a 28-day treatment cycles. |
| Part 1 Arm 3 | No intervention | –Observational control ("watch and wait") on a 28-day cycle. |
| Part 2 Arm A | Experimental | Drug: NavtemadlinNavtemadlin administered orally at 180 mg once daily (QD) on Days 1-7 in a 28-day treatment cycles. |
| Part 2 Arm B | Experimental | Drug: NavtemadlinNavtemadlin administered orally at 240 mg once daily (QD) on Days 1-7 in a 28-day treatment cycles. |
| Part 2 Arm C | Placebo comparator | Drug: Navtemadlin PlaceboPlacebo administered orally at 180 mg once daily (QD) on Days 1-7 in a 28-day administration cycle. |
| Part 2 Arm D | Placebo comparator | Drug: Navtemadlin PlaceboPlacebo administered orally at 240 mg once daily (QD) on Days 1-7 in a 28-day administration cycle. |
Who may qualify
- Ages
- 18 years and older
- Sex
- Female only
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (4 listed)
- ECOG 0-1
- Histologically or cytologically confirmed diagnosis of endometrial cancer documented as TP53WT
- Subjects with advanced or recurrent disease must have completed a single line of up to 6 cycles of taxane-platinum based chemo and achieved a CR or PR per RECIST V1.1
- Adequate hematologic, hepatic and renal function (within 14 days)
Key exclusion criteria (6 listed)
- Has any sarcomas or small-cell carcinomas with neuroendocrine differentiation
- Prior immune therapy, cytokine therapy, or any investigational therapy (within 28 days)
- Indwelling surgical drains
- Grade 2 or higher QTc prolongation
- History of major organ transplant
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 |
|---|---|---|
| NavtemadlinAlso: KRT-232Navtemadlin is an experimental MDM2 anticancer drug taken by mouth | Drug | Part 1 Arm 1, Part 1 Arm 2, Part 2 Arm A, Part 2 Arm B |
| Navtemadlin PlaceboNavtemadlin placebo is a placebo that is the same in appearance to navtemadlin drug taken by mouth | Drug | Part 2 Arm C, Part 2 Arm D |
Primary outcome
Part 1: To determine the navtemadlin Phase 3 dose
Time frame: 12 months
Safety review committee (SRC) will determine the navtemadlin Phase 3 dose for Part 2 based on safety data from Part 1
Part 2: To compare progression-free (PFS) survival by independent review committee (IRC) between navtemadlin and placebo
Time frame: 50 months
PFS defined as the time from randomization to disease progression by IRC or death, whichever occurs first
6 secondary outcomes
Part 1: To evaluate the treatment effect of navtemadlin on PFS by IRC and investigator assessment
Time frame: 50 months
Part 2: To evaluate the treatment effect of navtemadlin on the time to first subsequent treatment (TFST)
Time frame: 50 months
Parts 1 and 2: To determine the pharmacokinetic (PK) profile of navtemadlin
Time frame: 1 day
Parts 1 and 2: To determine the pharmacokinetic (PK) profile of navtemadlin
Time frame: 1 day
Parts 1 and 2: To determine the pharmacokinetic (PK) profile of navtemadlin
Time frame: 1 day
Parts 1 and 2: To evaluate the treatment effect of navtemadlin on the disease control rate (DCR)
Time frame: 50 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 2 May 2024.
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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.
83 sites in 17 countries: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A Phase 2/3 study testing Navtemadlin in people with Endometrial Cancer, run by Kartos Therapeutics, Inc. at 83 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?
The sponsor lists 4 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 2 May 2024. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 83 sites in United States, Italy, Poland, Spain, Romania 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 combined phase mean?
Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.
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?
Contact John Mei (650-542-0136, jmei@kartosthera.com), or a site near the patient. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Part 1: To determine the navtemadlin Phase 3 dose (time frame: 12 months). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.
Where can I read the original study information?
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 May 2024.