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Study of CryptiVax-1001 in Maintenance Setting for Advanced Serous Ovarian, Fallopian Tube, or Primary Peritoneal Cancer (OVACT)

14. august 2026 opdateret af: Epitopea Ltd

A Phase I/Ib, Multi-centre, Open-label Study to Evaluate the Safety, Tolerability, and Immunogenicity of CryptiVax-1001, a mRNA Lipid Nanoparticle Therapeutic Cancer Vaccine, in Participants With FIGO Stage III-IV High-Grade Serous or Predominantly Serous Ovarian, Fallopian Tube, or Primary Peritoneal Cancer Following Optimal Primary/Interval Debulking Surgery and First-Line Platinum-Based Chemotherapy (OVACT Study)

Ovarian, fallopian tube, or primary peritoneal cancer, collectively referred to as ovarian cancer, remains the deadliest type of gynaecological cancer. The most common and aggressive form is called high-grade serous ovarian cancer.

The main purpose of this study is to understand whether an experimental study vaccine, CryptiVax-1001, is safe when administered to patients with high-grade serous ovarian cancer (HGSOC). The study vaccine is a cancer vaccine, which aims to delay or possibly prevent the cancer from coming back. However, as this is the first study of the vaccine in patients, the primary purpose of this study is to assess the safety of the study vaccine.

Following surgery and platinum-based chemotherapy participants may enter the trial and receive CryptiVax-1001 as an explorative maintenance therapy.

The main purposes of this study are therefore to:

  • assess how well the study vaccine is tolerated and identify any side effects.
  • analyse the study vaccine's capacity to activate your immune system

The study will test escalating dose levels of CryptiVax-1001 based on the safety evaluations to estimate appropriate future dose levels for CryptiVax-1001.

Studieoversigt

Status

Rekruttering

Betingelser

Intervention / Behandling

Detaljeret beskrivelse

The OVACT study is the First in Human clinical evaluation of Cryptivax-1001 in patients with advanced high-grade serous or predominantly serous ovarian, fallopian tube, or primary peritoneal cancer, following optimal debulking surgery (R0 or R1 after either IDS or PDS), and no recurrence or progression after completion of platinum-based chemotherapy. This phase I/Ib dose escalation and expansion study will assess safety, tolerability, and immunogenicity in a population where there is a high unmet need and no clearly effective maintenance therapy options. By focusing on the BRCAwt/HRP subgroup, the study addresses the majority of patients who currently lack access to biologically-matched maintenance strategies.

The study consist of 2 parts - a dose escalation part and an optional dose expansion part

Undersøgelsestype

Interventionel

Tilmelding (Anslået)

50

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

  • Det Forenede Kongerige
      • Cambridge, Det Forenede Kongerige, CB2 0QQ
        • Rekruttering
        • Cambridge University Hospitals NHS Foundation Trust - Addenbrookes Hospital
      • Edinburgh, Det Forenede Kongerige, EH4 2XR
        • Ikke rekrutterer endnu
        • The University of Edinburgh - Western General Hospital - Edinburgh Cancer Research Centre
      • Glasgow, Det Forenede Kongerige, G12 0YN
        • Rekruttering
        • Beatson West of Scotland Cancer Centre
      • Leeds, Det Forenede Kongerige, LS9 7TF
        • Rekruttering
        • St. James's University Hospital
      • Leicester, Det Forenede Kongerige, LE2 7LX
        • Rekruttering
        • University Hospitals of Leicester NHS Trust -Leicester Royal Infirmary
      • London, Det Forenede Kongerige, SE1 9RT
        • Ikke rekrutterer endnu
        • Guy's and St Thomas' NHS Foundation Trust - Guy's Hospital
      • London, Det Forenede Kongerige, SW3 6JJ
        • Rekruttering
        • Royal Marsden NHS Foundation Trust - Royal Marsden Hospital
      • London, Det Forenede Kongerige, NW1 2PG
        • Rekruttering
        • University College London Hospitals NHS Foundation Trust - Cancer Clinical Trials Unit
      • Preston, Det Forenede Kongerige, PR2 9HT
        • Rekruttering
        • Lancashire Teaching Hospitals NHS Foundation Trust - Royal Preston Hospital
      • Sutton, Det Forenede Kongerige, SM2 5PT
        • Rekruttering
        • Royal Marsden NHS Foundation Trust - Institute of Cancer Research

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

  • Voksen
  • Ældre voksen

Tager imod sunde frivillige

Ingen

Beskrivelse

Inclusion Criteria:

  • Able to comprehend and are willing to sign the ICF and willing to follow the study procedures
  • Female, aged 18 years of age or older at the time of informed consent.
  • Histologically confirmed diagnosis of epithelial ovarian, fallopian tube, or primary peritoneal carcinoma of high-grade serous histology or other high-grade predominantly serous subtypes
  • The FIGO 2014 stage III or IV disease at initial diagnosis.
  • Underwent optimal PDS or IDS with residual disease ≤1 cm (R0 or R1 resection)
  • Completed first-line platinum-based chemotherapy (minimum 4 cycles of carboplatin and paclitaxel, or equivalent, received in either neoadjuvant or adjuvant, or both settings).
  • In the presence of measurable target lesion, achieved CR or PR per investigator assessment based on RECIST 1.1 after completion of chemotherapy. In the absence of measurable target lesion, no new lesion or overt progression per investigator assessment based on RECIST 1.1 after completion of chemotherapy.
  • A minimum of 4 weeks from screening since the last dose of first-line platinum-based chemotherapy but not more than 12 weeks from screening since the last dose of first-line platinum-based chemotherapy.
  • No evidence of radiologic or clinical progression between the end of chemotherapy and baseline screening.
  • Known BRCAwt status.
  • HRP confirmed
  • No prior, current, or planned treatment with bevacizumab or PARPi in the first-line maintenance setting.
  • ECOG performance status of 0 or 1.
  • Adequate haematologic and organ function
  • Negative pregnancy test for WOCBP.
  • HLA type matching Cryptivax-1001

Exclusion Criteria:

  • Non-epithelial or low malignant potential ovarian tumours
  • Presence of uncontrolled ascites or pleural effusion requiring drainage within 4 weeks of screening.
  • Concurrent malignancy or history of another malignancy within the past 3 years except for malignancies with a negligible risk of metastasis or death
  • Active autoimmune disease requiring systemic immunosuppression
  • Uncontrolled intercurrent illness that, in the opinion of the investigator, would compromise participant safety or interfere with study assessments
  • History of anaphylactic reaction to mRNA-LNP therapies.
  • Previous treatment with any cancer vaccine, checkpoint inhibitor, or adoptive cellular immunotherapy.
  • Administration of any vaccine within 30 days prior to first dosing.
  • Participation in a clinical study involving administration of an IMP (new chemical entity) in the past 90 days or 5 half-lives of that drug (if known) prior to first dosing, whichever is longer.

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: Sekventiel tildeling
  • Maskning: Ingen (Åben etiket)

Våben og indgreb

Deltagergruppe / Arm
Intervention / Behandling
Eksperimentel: Dosisniveau 1
Biologisk: CryptiVax-1001
i.m injection
Eksperimentel: Dosisniveau 2
Biologisk: CryptiVax-1001
i.m injection
Eksperimentel: Dosisniveau 3
Biologisk: CryptiVax-1001
i.m injection
Eksperimentel: Dosisniveau 4
Biologisk: CryptiVax-1001
i.m injection
Eksperimentel: Dosisniveau 5
Biologisk: CryptiVax-1001
i.m injection
Eksperimentel: Recommended Dose
Recommended phase 2 dose or another safe dose, based on Dose Escalation part
Biologisk: CryptiVax-1001
i.m injection

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
To evaluate the safety and tolerability of CryptiVax-1001
Tidsramme: Through study completion, an average of up 2 to years
Incidence, severity, and relatedness of treatment-emergent adverse events (TEAEs) per Common Terminology Criteria for Adverse Events
Through study completion, an average of up 2 to years
To evaluate the safety and tolerability of CryptiVax-1001
Tidsramme: From Day 1 to Day 21
Incidence and nature of dose-limiting toxicities (DLTs) during the DLT observation period
From Day 1 to Day 21
To evaluate the safety and tolerability of CryptiVax-1001
Tidsramme: Through study completion, an average of up to 2 years
Clinically significant changes from baseline in vital signs (body temperature, pulse rate, respiratory rate, systolic and diastolic blood pressure)
Through study completion, an average of up to 2 years
To evaluate the safety and tolerability of CryptiVax-1001
Tidsramme: Through study completion, and average of up to 2 years
Clinically significant changes from baseline in clinical laboratory assessments (hematology and chemistry)
Through study completion, and average of up to 2 years

Sekundære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
To characterise the immunogenicity of Cryptivax-1001
Tidsramme: At pre-defined timepoints during treatment and Follow-up period, an average of up to 2 years
Detection and quantification of antigen-specific T cells in peripheral blood at predefined timepoints
At pre-defined timepoints during treatment and Follow-up period, an average of up to 2 years

Samarbejdspartnere og efterforskere

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

Sponsor

Epitopea Ltd

Efterforskere

  • Ledende efterforsker: Susana Banerjee, MBBS MA FRCP PhD, Royal Marsden NHS Foundation Trust

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 (Anslået)

1. september 2026

Primær færdiggørelse (Anslået)

1. marts 2029

Studieafslutning (Anslået)

1. april 2029

Datoer for studieregistrering

Først indsendt

12. juni 2026

Først indsendt, der opfyldte QC-kriterier

18. juni 2026

Først opslået (Faktiske)

24. juni 2026

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Faktiske)

17. august 2026

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

14. august 2026

Sidst verificeret

1. juli 2026

Mere information

Begreber relateret til denne undersøgelse

Nøgleord

Yderligere relevante MeSH-vilkår

Andre undersøgelses-id-numre

  • OVCA-1
  • UTN U1111-1332-3427 (Anden identifikator: WHO)

Plan for individuelle deltagerdata (IPD)

Planlægger du at dele individuelle deltagerdata (IPD)?

INGEN

Lægemiddel- og udstyrsoplysninger, undersøgelsesdokumenter

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Studerer et amerikansk FDA-reguleret enhedsprodukt

Ingen

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