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En fase 1, åben-label, multippel stigende dosis undersøgelse af sikkerheden og tolerabiliteten af CTX-10726

22. oktober 2026 opdateret af: Compass Therapeutics

En fase 1, åben-label, multi-stigende dosis undersøgelse af sikkerhed og tolerabilitet af CTX-10726 hos patienter med fremskredne maligniteter

This is a Phase 1, open-label, first-in-human study of CTX-10726 monotherapy in patients with metastatic or locally advanced malignancies. The study will be conducted in 2 Cohorts: Cohort 1 Dose Escalation and Cohort 2 Dose Expansion.

Studieoversigt

Status

Rekruttering

Betingelser

Intervention / Behandling

Detaljeret beskrivelse

This Phase 1, open-label, first-in-human study will evaluate the safety, tolerability, immunogenicity, and pharmacokinetics profile of CTX-10726 monotherapy. Preliminary anti-tumor activity of CTX-10726 will also be assessed. The study will be conducted in 2 cohorts: Dose escalation and Dose expansion. The Dose Escalation Cohort will utilize a 3+3 design to evaluate four dose levels (0.3-10.0mg/kg) of CTX-10726 given as an IV infusion once every 2 weeks. Patients in the Dose Expansion Cohort will receive CTX-10726 as an IV infusion at dose(s) based on data from the Dose Escalation Cohort.

Undersøgelsestype

Interventionel

Tilmelding (Anslået)

70

Fase

  • 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

    • Arizona
      • Phoenix, Arizona, Forenede Stater, 85054
        • Rekruttering
        • Mayo Clinic Arizona
        • Kontakt:
          • Clinical Trials Referral Office
          • Telefonnummer: 855-776-0015
        • Ledende efterforsker:
          • Yousef Zakharia, MD
    • Florida
      • Jacksonville, Florida, Forenede Stater, 32224
        • Rekruttering
        • Mayo Clinic Florida
        • Kontakt:
          • Clinical Trials Referral Office
          • Telefonnummer: 855-776-0015
        • Ledende efterforsker:
          • Umair Majeed, MD
    • Minnesota
      • Rochester, Minnesota, Forenede Stater, 55905
        • Rekruttering
        • Mayo Clinic Rochester
        • Kontakt:
          • Clinical Trials Referral Office
          • Telefonnummer: 855-776-0015
        • Ledende efterforsker:
          • Andrea E Wahner Hendrickson, MD
    • Nebraska
      • Omaha, Nebraska, Forenede Stater, 68130
        • Rekruttering
        • Nebraska Cancer Specialists
        • Ledende efterforsker:
          • Ralph Hauke, MD
        • Kontakt:
    • New York
      • Lake Success, New York, Forenede Stater, 11042
        • Rekruttering
        • START New York
        • Kontakt:
        • Ledende efterforsker:
          • Geraldine O'Sullivan Coyne, MD, PhD
    • Pennsylvania
      • Pittsburgh, Pennsylvania, Forenede Stater, 15213
        • Rekruttering
        • UPMC Hillman Cancer Center
        • Ledende efterforsker:
          • Diwakar Davar, MD
        • Kontakt:
    • South Carolina
      • Greenville, South Carolina, Forenede Stater, 29605
        • Rekruttering
        • Prisma Health Cancer Institute
        • Kontakt:
        • Ledende efterforsker:
          • Jeff Edenfield, MD
    • Tennessee
      • Nashville, Tennessee, Forenede Stater, 37203
        • Rekruttering
        • SCRI Oncology Partners
        • Ledende efterforsker:
          • Meredith Pelster, MD
        • Kontakt:

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:

  1. Age 18 years or older.
  2. Patients must have a histologically or cytologically confirmed diagnosis of locally advanced unresectable or metastatic disease that is relapsed/refractory to standard therapy or for which no effective standard therapy is available, including:

2a: Renal Cell Carcinoma (RCC)

  • Histologically confirmed diagnosis of renal cell carcinoma (with clear cell component) with advanced or metastatic disease that is not amenable to cure by surgery or other means.

  • Patients who have progressed after a minimum of 2 doses of a programmed cell death 1 (PD-1)/ programmed cell death ligand 1 (PDL1) treatment.

  • Patients must have received at least one regimen including a tyrosine kinase inhibitor (TKI).

  • Patients who received immunomodulatory drugs (thymosin, interferon, interleukin, etc.) within 2 weeks before the first dose or received major surgical treatment within 3 weeks before the first dose are not eligible.

    2b: Hepatocellular Carcinoma (HCC)

  • Patients who have progressed after a minimum of 2 doses of a PD-1/PDL1 treatment.

  • Patient must have received one of the following regimens: ipilimumab+nivolumab, tremelimumab+durvalumab, atezolizumab+bevacizumab or lenvatinib+pembrolizumab.

  • Hepatic function: Child -Pugh A and Child-Pugh B7.

  • Receipt of local area treatment of the liver more than 4 weeks prior to the first dose is allowed.

    2c. Gastroesophageal Cancer (GC)

  • Patients who have progressed after a minimum of 2 doses of a PD-1/PDL1 treatment.

  • Patients must have received prior treatment with platinum-based chemotherapy.

    2d: Endometrial Cancer (EC)

  • Patients must have received at least 1 cycle of platinum-based chemotherapy.

  • Patients with newly diagnosed advanced endometrial cancer that have persistent lesion(s) after standard treatment with surgery and chemotherapy ± radiotherapy.

  • Patients with MSI- high or deficient DNA mismatch repair (dMMR) tumors who have progressed after a minimum of 2 doses of a PD-1/PDL1 treatment.

    3. Patients must have measurable disease per RECIST 1.1. Tumor sites that are considered measurable must not have received prior radiation.

    4. Eastern Cooperative Oncology Group (ECOG) performance status 0-1.

    5. Adequate organ function including:

  • Bone marrow function defined by absolute neutrophil (ANC) of ≥ 1.5×109/L, platelet count of ≥ 100.0×109/L, and hemoglobin of ≥ 9.0 g/dL (with or without transfusion).

  • Hepatic function defined as serum total bilirubin ≤ 1.5 × ULN (<3 x ULN in patients with Gilbert's syndrome), AST/ALT ≤ 2.5 × ULN (or ≤ 5 × ULN in patients with liver metastases).

  • Renal function defined as creatinine clearance ≥ 30 mL/min by Cockcroft Gault equation.

  • Cardiac function with Left Ventricular Ejection Fraction (LVEF) ≥ 50%.

    6. Female patients must be surgically sterile (or have a monogamous partner who is surgically sterile) or be at least 2 years postmenopausal or commits to use 2 acceptable forms of birth control (defined as the use of an intrauterine device, a barrier method with spermicide, condoms, any form of hormonal contraceptives) or abstinence for the duration of the study and for 4 months following the last dose of study treatment. Male patients must be sterile (biologically or surgically) or commit to the use of a reliable method of birth control (condoms with spermicide) for the duration of the study and for 4 months following the last dose of study treatment.

    7. Female patients who are women of childbearing potential (WOCBP) must have a negative serum pregnancy test at Screening within 7 days of dosing with CTX-10726.

    8. Prior anticancer therapy > 28 days (or 2 half-lives for proteins, whichever is shorter), radiotherapy > 7 days (concurrent localized palliative radiotherapy is allowed during CTX-10726 treatment with medical monitor approval), therapeutic surgical intervention > 21 days, blood transfusion > 14 days, or biopsy or minor surgery (excluding placement of vascular access devices) > 7 days prior to the first dose of CTX-10726.

    9. Resolution of all prior anti-cancer therapy toxicities ≤ Grade 2 (excluding alopecia).

    10. Capable of understanding and complying with protocol requirements

    11. Signed and dated institutional review board (IRB) approved informed consent form (ICF) before any protocol-directed screening procedures are performed.

Exclusion Criteria:

  1. Developed clinically significant adverse reaction to prior PD-1 or PD-L1 therapy, including immune related adverse reactions (irAE), that led to discontinuation of treatment. A prior irAE may be considered not exclusionary only after consultation with the Medical Monitor if it resolved or stabilized to Grade 1 or baseline before informed consent, has been clinically stable for at least 3 months, and does not require ongoing systemic corticosteroids or other systemic immunosuppressive therapy other than protocol-permitted physiologic replacement. Participants are not eligible if the prior irAE was severe or life-threatening, involved a high-risk organ system with potentially dangerous recurrence, was recurrent or occurred after rechallenge, required second-line immunosuppressive therapy beyond corticosteroids, suggested broad immune susceptibility, or could confound safety evaluation in this first-in-human study.

  2. Prior organ transplantation.

  3. History of arterial or venous thrombosis or stroke or transient ischemic attack within 6 months prior to the first dose.

  4. History of other neoplasms within 3 years prior to screening, except basal cell carcinoma of the skin, squamous cell carcinoma of the skin, or cervical cancer in situ that has undergone successful surgery.

  5. Symptomatic or uncontrolled central nervous system (CNS) and brain metastasis or active leptomeningeal disease. Patients with equivocal findings or with confirmed brain metastases are eligible for the study provided that they are asymptomatic and radiologically and neurologically stable without the need for corticosteroid treatment or seizure prophylaxis for >4 weeks before the first dose of study drug. Prior treatment with either surgery or radiation is permitted and all patients with a history of CNS or brain lesions require imaging during screening to confirm stability.

  6. A pleural, abdominal (eg, ascites) or pericardial effusion that is clinically symptomatic or requires repeated management (puncture or drainage, etc) within 14 days of dosing with CTX-10726.

  7. Imaging at screening that shows the tumor surrounds important blood vessels or had obvious necrosis and voids, and the investigators deems that it might cause bleeding risk.

  8. The presence of severe, unhealed or open wounds, active ulcers, or untreated fractures at the time of screening.

  9. A history of significant bleeding tendency or severe coagulopathy.

  10. Current therapeutic dose of anticoagulant or thrombolytic medication within 14 days of the first dose. Note: prophylactic use of low molecular heparin (ie, enoxaparin 40 mg/day) is allowed.

  11. Current or recent use of aspirin (> 325 mg/day) or other non-steroidal anti-inflammatory drugs (NSAIDs) within 14 days of first dose.

  12. Known uncontrolled diabetes mellitus despite optimized anti-diabetes medications.

  13. The presence of poorly controlled hypertension (systolic blood pressure [SBP]/diastolic blood pressure [DBP]) >140/90 mmHg (eg, patient with SBP/DBP > 140/90 mmHg despite ≥3 anti-hypertensive medications within 7 days of dosing with CTX-10726).

  14. Pregnant or lactating WOCBP.

  15. Patients with evidence of active hepatitis B virus (HBV), hepatitis C virus (HCV) or human immunodeficiency virus (HIV) infection. Patients with positive HBsAg and/or detectable HBV DNA are eligible only if adequately controlled on antiviral therapy according to institutional standards and liver function eligibility criteria are also met. HCV patients showing sustained viral response or patients with immunity to HBV infection may enroll.

    1. Hepatitis B subjects who meet the following criteria are also eligible for inclusion: HBV viral load must be < 1000 copies /ml (200 IU/ml) prior to initial dosing, and subjects should receive anti-HBV therapy to avoid viral reactivation throughout the duration of study chemotherapy drug treatment. For subjects with anti-HBC (+), HBsAg (-), anti-HBS (-), and HBV viral load (-), prophylactic anti-HBV therapy is not required, but close monitoring of viral reactivation is required.
    2. HIV-infected subjects who meet the following criteria are eligible for inclusion: HIV-RNA levels below the lower limit of detection.
  16. Active HCV-infected subjects (HCV antibody positive and HCV-RNA levels above the lower limit of detection).

  17. Patients that received attenuated vaccination within 4 weeks prior to screening or planning to receive attenuated vaccination during the study period.

  18. Current or recent systemic therapy with immunosuppressive agents within 7 days before the start of CTX-10726 treatment. Topical, intranasal, intraocular, or inhaled corticosteroids and physiologic replacement (≤ 10 mg/day prednisone or equivalent) for patients with adrenal insufficiency are allowed.

  19. Active autoimmune disease or medical conditions requiring chronic steroid (i.e., > 10 mg/day prednisone or equivalent) or immunosuppressive therapy. Patients with a prior history of autoimmune disease may be eligible following discussion with the Medical Monitor.

  20. Active or prior documented idiopathic pulmonary fibrosis or idiopathic pneumonia; current acute lung disease, interstitial lung disease or pneumonia (except localized interstitial pneumonia due to radiotherapy induction), pulmonary fibrosis, severe respiratory distress, pulmonary insufficiency or continuous oxygenation.

  21. Other medical conditions in the opinion of the Investigator and/or Sponsor Medical Monitor may interfere with the conduct and/or interpretation of the current study, including:

    1. Congestive heart failure (> New York Heart Association Class II), active coronary artery disease, unevaluated new onset angina within 3 months or unstable angina (angina symptoms at rest) or clinically significant cardiac arrhythmias.
    2. QTc interval (using Fridericia correction calculation) > 480 msec.

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: Ikke-randomiseret
  • Interventionel model: Enkelt gruppeopgave
  • Maskning: Ingen (Åben etiket)

Våben og indgreb

Deltagergruppe / Arm
Intervention / Behandling
Eksperimentel: Dose Escalation Cohort 1

Escalating doses of CTX-10726

Intravenous (IV) infusion (0.3-10.0mg/kg) every two weeks.

Eksperimentel: Dose Expansion Cohort 2

Dose of CTX-10726 depending on Cohort 1 data

Intravenous (IV) infusion (0.3-10.0mg/kg) every two weeks.

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Kohorte 1: Bestem dosis/doser af CTX-10726, der skal undersøges yderligere i Kohorte 2 og fase 2-studier
Tidsramme: Fra første dosis af CTX-10726 (Cykel 1 Dag 1, Cykel = 2 uger) indtil 30 dage efter sidste dosis af CTX-10726 (gennemsnitligt 6 måneder)
Fra første dosis af CTX-10726 (Cykel 1 Dag 1, Cykel = 2 uger) indtil 30 dage efter sidste dosis af CTX-10726 (gennemsnitligt 6 måneder)
Cohort 1: Evaluate the safety and tolerability of CTX-10726 by incidence of treatment-emergent adverse events (TEAEs) in escalating doses
Tidsramme: From first dose of CTX-10726 (Cycle 1 Day 1, Cycle = 2 weeks) until 30 days after the last dose of CTX-10726, average of 6 months)

Incidence of dose limiting toxicities (DLTs), treatment-emergent adverse events (TEAEs), and/or changes in clinical laboratory abnormalities.

From first dose of CTX-10726 (Cycle 1 Day 1, Cycle = 2 weeks) until 30 days after the last dose of CTX-10726, average of 6 months)
Cohort 2: Evaluate the safety and tolerability of CTX-10726 by incidence of treatment-emergent adverse events (TEAEs) at dose(s) selected from Cohort 1
Tidsramme: From first dose of CTX-10726 (Cycle 1 Day 1, Cycle = 2 weeks) until 30 days after the last dose of CTX-10726 (up to 2 years)

Incidence of treatment-emergent adverse events (TEAEs)

From first dose of CTX-10726 (Cycle 1 Day 1, Cycle = 2 weeks) until 30 days after the last dose of CTX-10726 (up to 2 years)

Sekundære resultatmål

Resultatmål
Tidsramme
Sygdomskontrolrate (DCR) procentdel af patienter med bedste samlede respons på CR, PR eller SD ifølge RECIST version 1.1
Tidsramme: Fra første dosis af CTX-10726 (Cykel 1 Dag 1, Cykel = 2 uger) indtil sygdomsprogression eller død, alt efter hvad der indtræffer først (op til 2 år)
Fra første dosis af CTX-10726 (Cykel 1 Dag 1, Cykel = 2 uger) indtil sygdomsprogression eller død, alt efter hvad der indtræffer først (op til 2 år)
Klinisk fordelssats (CBR) procentdel af patienter med bedste samlede respons på CR, PR eller SD i ≥ 6 måneder i henhold til RECIST version 1.1
Tidsramme: Fra første dosis af CTX-10726 (cyklus 1 dag 1, cyklus = 2 uger) indtil sygdomsprogression eller død, alt efter hvad der indtræffer først (op til 2 år)
Fra første dosis af CTX-10726 (cyklus 1 dag 1, cyklus = 2 uger) indtil sygdomsprogression eller død, alt efter hvad der indtræffer først (op til 2 år)
Progressionsfri overlevelse (PFS) ifølge Response Evaluation Criteria in Solid Tumors (RECIST) 1.1
Tidsramme: Fra første dosis af CTX-10726 (Cykel 1 Dag 1, Cyklus = 2 uger) indtil sygdomsprogression eller død, alt efter hvad der indtræffer først (op til 2 år)
Fra første dosis af CTX-10726 (Cykel 1 Dag 1, Cyklus = 2 uger) indtil sygdomsprogression eller død, alt efter hvad der indtræffer først (op til 2 år)
Overlevelse i alt (OS)
Tidsramme: Fra første dosis af CTX-10726 (cyklus 1 dag 1, cyklus = 2 uger) indtil døden (op til 2 år)
Fra første dosis af CTX-10726 (cyklus 1 dag 1, cyklus = 2 uger) indtil døden (op til 2 år)
Maksimal serumkoncentration (Cmax) af CTX-10726
Tidsramme: Fra første dosis af CTX-10726 (cyklus 1 dag 1 = 2 uger) indtil behandlingsophør
Fra første dosis af CTX-10726 (cyklus 1 dag 1 = 2 uger) indtil behandlingsophør
Tidspunkt for maksimal serumkoncentration (Tmax) af CTX-10726
Tidsramme: Fra første dosis af CTX-10726 (cyklus 1 dag 1, cyklus = 2 uger) indtil behandlingsophør
Fra første dosis af CTX-10726 (cyklus 1 dag 1, cyklus = 2 uger) indtil behandlingsophør
Trogkoncentration (Ctrough) af CTX-10726
Tidsramme: Fra første dosis af CTX-10726 (Cykel 1 Dag 1, Cykel = 2 uger) indtil behandlingen afsluttes
Fra første dosis af CTX-10726 (Cykel 1 Dag 1, Cykel = 2 uger) indtil behandlingen afsluttes
Areal under kurven (AUC) for CTX-10726
Tidsramme: Fra første dosis af CTX-10726 (Cykel 1 Dag 1, Cyklus = 2 uger) indtil behandlingsophør
Fra første dosis af CTX-10726 (Cykel 1 Dag 1, Cyklus = 2 uger) indtil behandlingsophør
Clearance (CL) af serumkoncentrationer af CTX-10726
Tidsramme: Fra første dosis af CTX-10726 (cyklus 1 dag 1, cyklus = 2 uger) indtil behandlingsophør
Fra første dosis af CTX-10726 (cyklus 1 dag 1, cyklus = 2 uger) indtil behandlingsophør
Fordelingsvolumen (Vd) for serumkoncentrationer af CTX-10726
Tidsramme: Fra første dosis af CTX-10726 (Cykel 1 Dag 1, Cykel = 2 uger) indtil behandling afsluttes
Fra første dosis af CTX-10726 (Cykel 1 Dag 1, Cykel = 2 uger) indtil behandling afsluttes
Terminal eliminationshalveringstid (t1/2) for serumkoncentrationer af CTX-10726
Tidsramme: Fra første dosis af CTX-10726 (cyklus 1 dag 1, cyklus = 2 uger) indtil behandling ophører
Fra første dosis af CTX-10726 (cyklus 1 dag 1, cyklus = 2 uger) indtil behandling ophører
Dosisrespons for CTX-10726
Tidsramme: Fra første dosis af CTX-10726 (cyklus 1 dag 1, cyklus = 2 uger) indtil behandlingsophør
Fra første dosis af CTX-10726 (cyklus 1 dag 1, cyklus = 2 uger) indtil behandlingsophør
Vurder immunogeniteten af CTX-10726 og screen for tilstedeværelsen og udviklingen af antistoffer mod CTX-10726
Tidsramme: Fra første dosis af CTX-10726 (cyklus 1 dag 1, cyklus = 2 uger) indtil behandlingsafslutningsbesøget
Fra første dosis af CTX-10726 (cyklus 1 dag 1, cyklus = 2 uger) indtil behandlingsafslutningsbesøget
Objektiv responsrate (ORR) (procentdel af deltagere med objektiv respons) ifølge Response Evaluation Criteria in Solid Tumors (RECIST) version 1.1
Tidsramme: Baseline indtil bekræftet sygdomsprogression (op til 2 år)
Baseline indtil bekræftet sygdomsprogression (op til 2 år)
Varighed af respons (DOR) i henhold til Response Evaluation Criteria in Solid Tumors (RECIST) version 1.1
Tidsramme: Fra datoen for første bekræftede komplet respons (CR) eller delvis respons (PR) indtil den første dato for tilbagevendende eller progressiv sygdom (op til 2 år)
Fra datoen for første bekræftede komplet respons (CR) eller delvis respons (PR) indtil den første dato for tilbagevendende eller progressiv sygdom (op til 2 år)

Samarbejdspartnere og efterforskere

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

Sponsor

Efterforskere

  • Studieleder: Cynthia Sirard, MD, Compass Therapeutics

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)

28. maj 2026

Primær færdiggørelse (Anslået)

1. april 2028

Studieafslutning (Anslået)

1. november 2028

Datoer for studieregistrering

Først indsendt

12. februar 2026

Først indsendt, der opfyldte QC-kriterier

12. februar 2026

Først opslået (Faktiske)

19. februar 2026

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Faktiske)

23. oktober 2026

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

22. oktober 2026

Sidst verificeret

1. februar 2026

Mere information

Begreber relateret til denne undersøgelse

Andre undersøgelses-id-numre

  • CTX-10726-001

Plan for individuelle deltagerdata (IPD)

Planlægger du at dele individuelle deltagerdata (IPD)?

UBESLUTET

IPD-planbeskrivelse

Undecided

Lægemiddel- og udstyrsoplysninger, undersøgelsesdokumenter

Studerer et amerikansk FDA-reguleret lægemiddelprodukt

Ja

Studerer et amerikansk FDA-reguleret enhedsprodukt

Ingen

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