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En undersøgelse af GSK5733584 i kombination med anti-kræftbehandlinger til avancerede faste tumorer

30. oktober 2026 opdateret af: GlaxoSmithKline

En fase I/II randomiseret multi-kohort-undersøgelse for at evaluere sikkerheden, tolerabiliteten, farmakokinetikken og klinisk aktivitet af GSK5733584 i kombination med anticancermidler hos deltagere med avancerede faste tumorer

Advanced solid tumors are cancers that have spread to other parts of the body. While many treatments exist, most people become resistant to them, and the cancer returns. Researchers are developing new treatments that combine different medicines for those who do not respond to single medicine. This study is looking at how safe and tolerable Mocertatug Rezetecan (Mo-Rez) is, how the body handles it, and how well it works when used with other cancer medicines. The study will include participants with advanced solid tumors who have either not responded to standard treatments or cannot tolerate them or have no available effective treatment.

Studieoversigt

Status

Rekruttering

Undersøgelsestype

Interventionel

Tilmelding (Anslået)

305

Fase

  • Fase 2
  • Fase 1

Kontakter og lokationer

Dette afsnit indeholder kontaktoplysninger for dem, der udfører undersøgelsen, og oplysninger om, hvor denne undersøgelse udføres.

Studiekontakt

Undersøgelse Kontakt Backup

Studiesteder

      • Buenos Aires, Argentina, C1181ACH
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      • Panama City, Panama
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      • Barcelona, Spanien, 08036
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      • Zaragoza, Spanien, 50009
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          • EUGENIA ORTEGA
      • Stockholm, Sverige, 17164
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          • Lisa Liu Burstrom
      • Seoul, Sydkorea, 05505
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          • jeong yeol park
      • Seoul, Sydkorea, 135-710
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          • Yooyoung Lee
      • Seoul, Sydkorea, 120-752
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          • Jung-Yun Lee
      • Ankara, Tyrkiet (Türkiye), 06590
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          • yuksel urun
      • Ankara, Tyrkiet (Türkiye), 6170
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          • öztürk ateş
      • Istanbul, Tyrkiet (Türkiye), 34010
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          • Fatih Selcukbiricik
      • Cologne, Tyskland, 50931
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          • Christian Maurer
      • Leipzig, Tyskland, 04103
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          • Gertraud Stocker
    • Bavaria
      • München, Bavaria, Tyskland, 81377
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          • Lena Weiss
    • Rhineland-Palatinate
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          • Alexander Desuki

Deltagelseskriterier

Forskere leder efter personer, der passer til en bestemt beskrivelse, kaldet berettigelseskriterier. Nogle eksempler på disse kriterier er en persons generelle helbredstilstand eller tidligere behandlinger.

Berettigelseskriterier

Aldre berettiget til at studere

18 år og ældre (Voksen, Ældre voksen)

Tager imod sunde frivillige

Ingen

Køn, der er berettiget til at studere

Alle

Beskrivelse

Inclusion Criteria:

  • Participants must be 18 years of age inclusive or older, at the time of signing the informed consent, or the legal age of consent in the jurisdiction in which the study is taking place.

  • Participant capable of giving signed informed consent including compliance with the requirements and restrictions listed in the Informed consent form (ICF) and in this protocol.

  • Participants with pathologically confirmed advanced solid tumor specific for study Module (key local diagnostic molecular and/or immunophenotyping testing results/tumor cell phenotype results for confirmed diagnosis should be provided) with no more than 4 lines of prior systemic therapies. Please note:

    1. Adjuvant +/- neoadjuvant considered one line of therapy
    2. Maintenance therapy will be considered as part of the preceding line of therapy (i.e., not counted independently)
    3. Unplanned addition or switching to a new drug in a different class is considered a separate line of therapy. If an agent in a regimen is switched to another agent in the same class due to toxicity or intolerance (e.g. hypersensitivity reaction) this is considered part of the same line (i.e. not counted independently).
  • Requirements for tumor tissue samples: Archival or fresh tumor tissue is required for retrospective central assessment of B7H4 expression by immunohistochemistry (IHC) and other biomarker analysis. The archival tumor tissue should be from the most recent procedure (ideally obtained after the last anti-cancer treatment). If an archival tissue is not available a new biopsy should be performed, and the newly obtained tissue provided.

  • Participants have at least one target lesion as assessed per RECIST 1.1. A target lesion is defined as a measurable lesion that has not undergone locoregional treatment such as irradiation or that has unequivocal progression following locoregional treatment, with the longest diameter of ≥ 10 millimeter (mm) at Baseline (for lymph node lesions, the short axis should be ≥ 15 mm).

  • Participants have a life expectancy of at least 12 weeks per investigator assessment based on disease burden and extent of supportive care needed.

Inclusion criteria of participants under arm Module 1 (Mo-Rez +Dostarlimab) Endometrial Cancer Part 1A:

a. Participants with histologically documented, advanced (metastatic and/or unresectable) or recurrent endometrial cancer who have failed in adequate standard treatments, do not have effective standard treatment or are intolerant to standard of care, and who are not candidates for further curative external radiotherapy or brachytherapy.

Inclusion criteria of participants under arm Module 1 (Mo-Rez +Dostarlimab) Endometrial Cancer Part 1B:

  1. Diagnosis of endometrial cancer with confirmed mismatch repair proficient (MMRp) or microsatellites stable (MSS) tumor status by local test.
  2. Participants who have progressed on or are intolerant to at least 1 line of standard prior systemic therapy (including neoadjuvant or adjuvant as prior line), and who are not candidates for curative external radiotherapy or brachytherapy. Maintenance therapy will be considered part of the preceding line of therapy (i.e, not counted independently).

Inclusion criteria of participants under arm Module 2 (Mo-Rez +/- Bevacizumab) Ovarian Cancer Part 2A:

a. Participants with histologically or cytologically confirmed advanced epithelial ovarian cancer/fallopian tube/peritoneal cancer (any epithelial histology - mucinous, clear cell, carcinosarcoma, high/low grade serous, endometrioid) who have failed in adequate standard treatments, do not have effective standard treatment or are intolerant to standard of care.

Inclusion criteria of participants under arm Module 2 (GSK5733584 +/- Bevacizumab) Ovarian Cancer Part 2B:

  1. Participants whose advanced ovarian cancer/fallopian tube/peritoneal cancer has relapsed more than 6 months from the last dose of platinum before enrollment, i.e., platinum sensitive.

  2. Participants who have progressed on or are intolerant to at least 1 line of standard prior lines of chemotherapy and are not candidates for second cytoreductive surgery.

    • Participants willing to use adequate contraception.

Female participants:

A female participant is eligible to participate if she is not pregnant or breastfeeding, and one of the following conditions applies:

  • Is a Woman of non-childbearing potential (WONCBP) OR

  • Is a Woman of childbearing potential (WOCBP) and using a contraceptive method that is highly effective.

  • A WOCBP must have a negative highly sensitive pregnancy test (urine or serum as required by local regulations) within 24 hours before the first dose of study intervention

    • Has an ECOG performance status of 0 to 1.
    • Participants with normal organ and bone marrow function.

Exclusion Criteria:

  • Has a second malignancy (except disease under study) that has progressed or required active treatment within the past 24 months except for basal cell or squamous cell carcinomas of the skin or in-situ carcinomas [e.g., breast, cervix, bladder] that have been resected with no evidence of metastatic disease.

  • Has had any major surgery within 28 days prior to enrolment.

  • Has any history of prior allogenic or autologous bone marrow transplant or other solid organ transplant.

  • Has known sensitivity to study intervention components, Mo-Rez (antibody-drug conjugate, antibody, free cytotoxin GSK5757810A) and combination partner, or its excipients or other allergy that, in the opinion of the investigator, contraindicates participation in the study.

  • Has any following cardiological examination abnormality:

    1. history in prior year of clinically significant or uncontrolled cardiac disease, acute myocardial infarction, NYHA Class III or IV congestive heart failure or clinically significant arrhythmia not controlled by standard of care therapy.
    2. Corrected QT Interval (QTcF) >450 millisecond (msec) or QTcF >480 msec for participants with bundle branch block
  • Has untreated brain or CNS metastases or brain/CNS metastases rapidly progressing requiring urgent medical intervention.

  • Any evidence of current interstitial lung disease (ILD) or pneumonitis or a prior history of ILD or non-infectious pneumonitis.

  • Has a history of autoimmune disease that has required systemic treatments in the 2 years prior to screening (i.e., with use of disease modifying agents, corticosteroids, or immunosuppressive drugs). Replacement therapy is not considered a form of systemic therapy (e.g., thyroid hormone for autoimmune thyroiditis or insulin is not exclusionary).

  • Clinically significant bleeding symptoms, significant bleeding tendency, or bleeding tumors within 1 month prior to the first dose of study treatment.

  • Serious or poorly controlled hypertension, including history of hypertensive crisis, hypertensive encephalopathy; adjustment of antihypertensive medications due to poor blood pressure control within 2 weeks prior to the first dose of study treatment;

  • Has any active renal condition (e.g., infection, requirement for dialysis, or any other active significant renal condition or dehydrated condition that could affect the participant's safety). Note: renal obstruction successfully managed by stenting is permitted.

  • Has any serious and/or unstable medical condition (such as clinical symptoms of intestinal obstruction) or psychiatric disorder or other condition(s) (including laboratory assessment abnormalities) that could interfere with the participant's safety, obtainment of informed consent, or compliance to the study procedures.

  • Participants with known history of Human immunodeficiency virus (HIV).

Exclusion criteria of participants under arm Module 1 (Mo-Rez +Dostarlimab) Endometrial Cancer:

  1. Has mesenchymal tumor of the uterus (uterine sarcoma).
  2. Has experienced symptomatic pericarditis of any etiology within 6 months of study treatment or any of the following with prior immunotherapy: any imAE ≥ Grade 3, immune-mediated severe neurologic events of any-grade (e.g., myasthenic syndrome/myasthenia gravis, encephalitis Guillain-Barré Syndrome, or transverse myelitis), exfoliative dermatitis of any grade (SJS, TEN, or DRESS syndrome), or myocarditis of any grade.

Exclusion criteria of participants under arm Module 2 (Mo-Rez +/-Bevacizumab) Ovarian Cancer:

  1. Participants with wound healing complications or incompletely healed wounds.

  2. Participants with history or evidence of gastrointestinal perforation, tracheoesophageal fistula, or any grade 4 fistula; participants with gastrointestinal fistula, visceral fistula, or abdominal abscess within 6 months prior to the first dose, participants with history of osteonecrosis of the jaw.

  3. Participants who have evidence of recto-sigmoid involvement by pelvic examination or bowel involvement on CT scan or clinical symptoms of bowel obstruction.

  4. Participants with congenital bleeding diathesis, acquired coagulopathy, recent pulmonary haemorrhage/ haemoptysis (> 2.5 mL of red blood or ½ teaspoon) within the last 3 months. Participants receiving treatment for thromboembolism are permitted as long as they have been on a stable dose of anticoagulation for at least 1 month.

  5. Participant has history of congestive heart failure (CHF) or baseline LVEF <50% or institutional lower limits of normal.

  6. Participant with history of nephrotic syndrome or grade 3 proteinuria. Participants has proteinuria as demonstrated by urine dipstick for proteinuria ≥2 (participants discovered to have ≥2 proteinuria on dipstick at baseline should undergo 24-hour urine collection and must demonstrate ≤1 g of protein in 24 hours to be eligible).

    • Has an Alanine transaminase (ALT) value >2.5x Upper Limit of Normal (ULN) and for participants with documented liver metastases/tumor infiltration has an ALT value >5x ULN.
    • Has a total bilirubin value >1.5x ULN.
    • Has documented presence of HBsAg and/or HBcAb, or HBsAb (except for presence of HBsAb attributable to previous vaccination) at screening or within 3 months prior to the first dose of study intervention.
    • Has a positive HCV antibody test result at screening or within 3 months prior to the first dose of study intervention.
    • Has received prior therapy with topoisomerase-1 inhibitors or ADC with topoisomerase-1 inhibitor warhead, or B7H4 targeted therapy.
    • Has received treatment with any cytotoxic chemotherapy drugs or other anti-tumor drugs (including endocrine therapy, molecular targeted therapy, immunotherapy, biotherapy, and investigational drug) within 30 days or 5 half-lives, whichever is shorter of a medicinal product prior to the first dose of study drug; or need to continue these drugs during the study.
    • Use of inhibitors of P-gp, breast cancer resistance protein (BCRP) or OATP1B1/1B3 within 7 days prior to the first dose of study drug. P-gp inducers should be discontinued for at least 14 days before the start of the study.
    • Have received locoregional radiation therapy within 2 weeks prior to the first dose of study drug; more than 30% of bone marrow irradiation or wide-field radiation therapy within 4 weeks prior to the first dose of study treatment.
    • Has serious infections within 4 weeks prior to the first dose, including but not limited to infectious complications, bacteremia, severe pneumonia treated with intravenous antibiotics for ≥2 weeks.

Studieplan

Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.

Hvordan er undersøgelsen tilrettelagt?

Design detaljer

  • Primært formål: Behandling
  • Tildeling: Randomiseret
  • Interventionel model: Parallel tildeling
  • Maskning: Ingen (Åben etiket)

Våben og indgreb

Deltagergruppe / Arm
Intervention / Behandling
Eksperimentel: Module 1 (Mo-Rez +Dostarlimab) Endometrial Cancer

Mo-Rez will be administered intravenously (IV).

Dostarlimab will be administered IV.

Eksperimentel: Module 2 (Mo-Rez +/-Bevacizumab) Ovarian Cancer

Mo-Rez will be administered intravenously (IV).

Bevacizumab will be administered IV.

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Del A: Procentdel af deltagere med dosisbegrænsende toksiciteter (DLTS)
Tidsramme: Ca. 7 måneder
Ca. 7 måneder
Del A: Antal deltagere med bivirkninger (AES), immunmedierede bivirkninger (IMAES), bivirkninger af særlig interesse (AESI), alvorlige bivirkninger (SAE'er) efter sværhedsgrad
Tidsramme: Op til cirka 22 måneder
Op til cirka 22 måneder
Del A: Antal deltagere med bivirkninger (AES), immunmedierede bivirkninger (IMAES), bivirkninger af særlig interesse (AESI), alvorlige bivirkninger (SAE'er) efter frekvens
Tidsramme: Op til cirka 22 måneder
Op til cirka 22 måneder
Part B: Confirmed Objective Response Rate (ORR)
Tidsramme: Up to approximately 37 months

ORR is defined as the percentage of participants with a best overall confirmed (BOR) of Partial Response (PR) or better per Response Evaluation Criteria in Solid Tumors (RECIST 1.1)

Up to approximately 37 months

Sekundære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Del B: Antal deltagere med bivirkninger (AES), immunmedierede bivirkninger (IMAES), bivirkninger af særlig interesse (AESI), alvorlige bivirkninger (SAE'er) efter frekvens
Tidsramme: Op til cirka 37 måneder
Op til cirka 37 måneder
Del B: Antal deltagere med bivirkninger (AES), immunmedierede bivirkninger (IMAES), bivirkninger af særlig interesse (AESI), alvorlige bivirkninger (SAE'er) efter sværhedsgrad
Tidsramme: Op til cirka 37 måneder
Op til cirka 37 måneder
Dele A og B: Antal deltagere med anti-Drug Antistofies (ADA)
Tidsramme: Op til cirka 37 måneder
Op til cirka 37 måneder
Dele A og B: Antal deltagere med neutraliserende antistof (NAB)
Tidsramme: Op til cirka 37 måneder
Op til cirka 37 måneder
Dele A og B: Antal deltagere med klinisk signifikante ændringer i vitale tegn, laboratorieparametre og elektrokardiogram (EKG)
Tidsramme: Op til cirka 37 måneder
Op til cirka 37 måneder
Part B: Proportion of participants with CA-125 response
Tidsramme: Up to approximately 37 months
Up to approximately 37 months
Parts A and B: Maximum observed concentration (Cmax) of Mo-Rez
Tidsramme: Up to approximately 37 months
Up to approximately 37 months
Parts A and B: Time to reach Cmax (tmax) of Mo-Rez
Tidsramme: Up to approximately 37 months
Up to approximately 37 months
Parts A and B: Trough concentration (Ctrough) of Mo-Rez
Tidsramme: Up to approximately 37 months
Up to approximately 37 months
Parts A and B: Area under the concentration-time curve (AUC) of Mo-Rez
Tidsramme: Up to approximately 37 months
Up to approximately 37 months
Parts A and B: Titers of ADA to Mo-Rez
Tidsramme: Up to approximately 37 months
Up to approximately 37 months
Part A: Confirmed Objective Response Rate (ORR)
Tidsramme: Up to approximately 22 months

ORR is defined as the percentage of participants with a best overall confirmed (BOR) of Partial Response (PR) or better per Response Evaluation Criteria in Solid Tumors (RECIST 1.1)

Up to approximately 22 months
Parts A and B: Duration of response (DoR)
Tidsramme: Up to approximately 37 months

DoR is defined as the time from date of first documented evidence of PR or better to the date of disease progression or death due to any cause.

Up to approximately 37 months
Parts A and B: Progression-free survival (PFS)
Tidsramme: Up to approximately 37 months

PFS is defined as time from the date of randomization (Part B) / first dose of study intervention (Part A or B if single arm) to the date of disease progression according to investigator assessment or death due to any cause, whichever occurs first.

Up to approximately 37 months
Part B: Overall Survival (OS)
Tidsramme: Up to approximately 37 months

OS is defined as the time from randomization (or date of first dose if single arm) to the date of death due to any cause.

Up to approximately 37 months
Parts A and B: Change from Baseline in Eastern Cooperative Oncology Group Performance Scale (ECOG PS) score
Tidsramme: Baseline and up to approximately 37 months

ECOG PS is used for measuring how the disease impacts a participant's daily living abilities. The grades for the scale range from 0 (fully active) to 5 (dead), with increasing severity.

Baseline and up to approximately 37 months

Samarbejdspartnere og efterforskere

Det er her, du vil finde personer og organisationer, der er involveret i denne undersøgelse.

Sponsor

Publikationer og nyttige links

Den person, der er ansvarlig for at indtaste oplysninger om undersøgelsen, leverer frivilligt disse publikationer. Disse kan handle om alt relateret til undersøgelsen.

Datoer for undersøgelser

Disse datoer sporer fremskridtene for indsendelser af undersøgelsesrekord og resumeresultater til ClinicalTrials.gov. Studieregistreringer og rapporterede resultater gennemgås af National Library of Medicine (NLM) for at sikre, at de opfylder specifikke kvalitetskontrolstandarder, før de offentliggøres på den offentlige hjemmeside.

Studer store datoer

Studiestart (Faktiske)

4. marts 2025

Primær færdiggørelse (Anslået)

21. juni 2027

Studieafslutning (Anslået)

10. oktober 2028

Datoer for studieregistrering

Først indsendt

22. januar 2025

Først indsendt, der opfyldte QC-kriterier

22. januar 2025

Først opslået (Faktiske)

28. januar 2025

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Faktiske)

2. november 2026

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

30. oktober 2026

Sidst verificeret

1. oktober 2026

Mere information

Begreber relateret til denne undersøgelse

Plan for individuelle deltagerdata (IPD)

Planlægger du at dele individuelle deltagerdata (IPD)?

JA

IPD-planbeskrivelse

Study Sponsor will assess requests from qualified researchers for anonymized individual patient-level data and related study documents. Data sharing is subject to certain criteria, conditions, and exceptions. For further information, refer to https://www.gsk-studyregister.com/gsk-patient-level-data-sharing-july2025.pdf

IPD-delingstidsramme

Anonymized IPD will be made available within 6 months of publication of primary, key secondary and safety results for studies in product with approved indication(s) or asset(s) with development terminated across all indications.

IPD-delingsadgangskriterier

Anonymized IPD is shared with researchers whose proposals are approved by an Independent Review Panel and after a Data Sharing Agreement is in place. Access is provided for an initial period of 12 months, but an extension may be granted, when justified, for up to 6 months.

IPD-deling Understøttende informationstype

  • STUDY_PROTOCOL
  • SAP
  • ICF
  • CSR

Lægemiddel- og udstyrsoplysninger, undersøgelsesdokumenter

Studerer et amerikansk FDA-reguleret lægemiddelprodukt

Ja

Studerer et amerikansk FDA-reguleret enhedsprodukt

Ingen

Disse oplysninger blev hentet direkte fra webstedet clinicaltrials.gov uden ændringer. Hvis du har nogen anmodninger om at ændre, fjerne eller opdatere dine undersøgelsesoplysninger, bedes du kontakte register@clinicaltrials.gov. Så snart en ændring er implementeret på clinicaltrials.gov, vil denne også blive opdateret automatisk på vores hjemmeside .

Abonner