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Skrøbelighed, livskvalitet og tidlig reversering af midlertidigt defungerende stomi i ovariecancer (FOLERO)

25. september 2026 opdateret af: Sahar Salehi

Skrøbelighed, livskvalitet og tidlig reversering af midlertidigt defungerende stomi i ovariecancer (FOLERO): En prospektiv kohorteundersøgelse til at bestemme virkningen af ​​skrøbelighed på overlevelse og til at vurdere tidlig reversering af midlertidig intestinal stomi

Complete macroscopic surgical resection (CMR) requires extensive surgery and combined with chemotherapy confers best chance of survival in advanced ovarian cancer. During cytoreductive surgery 11% of women require a temporary diverting intestinal stoma.

Unexpectedly, our results from a unique fully accounted for population demonstrate that survival was not improved when increasing the proportion of women in whom CMR was achieved and in a yet unidentified subgroup of women extensive surgery was detrimental. In these women surgical treatment should be omitted in favor of chemotherapy only. Accordingly, there is an imperative need to improve patient selection to surgical treatment.

In Sweden, we treat an unselected population of women in a public healthcare system, where 30% of women with are >75 years. Despite these circumstances guidelines on patient-selection are lacking.

Age is an imprecise variable to base clinical decisions on but must be considered with an aging population. The dynamics between physiological changes of aging, comorbidity and medical condition are included in the concept of frailty, that has gained little attention in oncology, despite their potential to stratify risk and mortality.

The FOLERO study is a prospective adequately powered national cohort study with aim to determine if frailty instruments may be used to select patient to surgical treatment. In addition, we test the feasibility of early stoma reversal after index cytoreductive surgery in a small phase I trial and follow our patients Health Related Quality of Life after state of the art surgical treatment.

Studieoversigt

Status

Rekruttering

Betingelser

Intervention / Behandling

Detaljeret beskrivelse

Hypothesis: Frailty is a predictor of poor survival Primary objective: To assess three different frailty instruments as predictors of survival Exposure: Frailty according to the three different frailty instruments evaluated Control: No frailty according to the three different frailty instruments evaluated Primary outcome measure: Overall survival

Secondary objectives (selection):

  • To evaluate the effect of sarcopenia on postoperative outcome and survival
  • To evaluate the effect of surgical extent on postoperative outcome and survival
  • To describe the HRQoL and symptoms of the" Low anterior resection syndrome" after surgery

Phase I sub-study on the feasibility and safety of early stoma reversal (Karolinska University Hospital only)

Hypothesis: Early stoma reversal in select patients with advanced ovarian cancer is feasible and safe.

Primary objective: To assess the feasibility and safety of early closure of defunctioning stoma after upfront cytoreductive surgery in ovarian cancer Primary outcome measure : Feasibility and safety of early stoma reversal as measured by rate of anastomotic leakage, urgent re- operations and time-interval to adjuvant chemotherapy (defined cut-offs based on historic comparison in the study protocol)

Undersøgelsestype

Interventionel

Tilmelding (Anslået)

475

Fase

  • Ikke anvendelig

Kontakter og lokationer

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

Studiekontakt

Studiesteder

  • Sverige
      • Gothenburg, Sverige, 41685
        • Rekruttering
        • Sahlgrenska University Hospital and Sahlgrenska Academy
        • Kontakt:
        • Ledende efterforsker:
          • Pernilla Dahm-Kähler, MD, Prof.
        • Ledende efterforsker:
          • Charlotte Palmqvist, MD, PhD
      • Linköping, Sverige, 581 85
      • Lund, Sverige, 22185
        • Rekruttering
        • Skåne University Hospital
        • Kontakt:
        • Ledende efterforsker:
          • Mihaela Asp, MD, PhD
        • Underforsker:
          • Päivi Kannisto, MD, Ass Prof
    • Solna

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

Kvinde

Beskrivelse

Inclusion Criteria:

  • Women with epithelial ovarian cancer scheduled for cytoreductive surgery with curative intent
  • Age ≥18 years
  • Signed written informed consent

Exclusion Criteria:

  • Not able to understand the Swedish or English language
  • Other diagnosis than ovarian cancer on final pathology

Studieplan

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

Hvordan er undersøgelsen tilrettelagt?

Design detaljer

  • Primært formål: Andet
  • Tildeling: N/A
  • Interventionel model: Enkelt gruppeopgave
  • Maskning: Ingen (Åben etiket)

Våben og indgreb

Deltagergruppe / Arm
Intervention / Behandling
Eksperimentel: Frailty

Single arm study evaluating frailty by assessment of questionnaires and three different frailty tools
Andet: Frailty and Quality of Life evaluation

Frailty and Quality of Life evaluation after surgery

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Overall Survival
Tidsramme: 24 months after index surgery

Overall survival time is calculated from the date of index surgery to the date of death (due to any cause), or for patients still alive to the date of last follow-up.
24 months after index surgery

Sekundære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
1-year mortality
Tidsramme: 12 months from index surgery

Mortality within 1-year after index surgery
12 months from index surgery
Health related quality of life (HRQoL) (QLQ-C30)
Tidsramme: At baseline, 12-15 weeks after index surgery and 12 months after index surgery

Assessed by validated questionnaire and comprise the European Organisation for Research and Treatment of Cancer (EORTC), Core Questionnaire (QLQ-C30)
At baseline, 12-15 weeks after index surgery and 12 months after index surgery
Health related quality of life (HRQoL) (QLQ-OV28)
Tidsramme: At baseline, 12-15 weeks after index surgery and 12 months after index surgery

Assessed by validated questionnaire and comprise the European Organisation for Research and Treatment of Cancer (EORTC), EORTC Quality of life Questionnaire Ovarian Cancer Module (QLQ)-OV28
At baseline, 12-15 weeks after index surgery and 12 months after index surgery
Health related quality of life (HRQoL) (QLQ-ELD14)
Tidsramme: At baseline, 12-15 weeks after index surgery and 12 months after index surgery

Assessed by validated questionnaire and comprise the European Organisation for Research and Treatment of Cancer (EORTC), EORTC Quality of life Questionnaire Elderly Module (EORTC-QLQ-ELD14)
At baseline, 12-15 weeks after index surgery and 12 months after index surgery
Health related quality of life (HRQoL) (EQ-5D-5L)
Tidsramme: At baseline, 12-15 weeks after index surgery and 12 months after index surgery

Assessed by validated questionnaire and comprise the European Organisation for Research and Treatment of Cancer (EORTC), EQ-5D-5L
At baseline, 12-15 weeks after index surgery and 12 months after index surgery
Low anterior resection syndrome (LARS)
Tidsramme: At baseline, 12-15 weeks after index surgery and 12 months after index surgery

Assessed by the validated LARS questionnaire
At baseline, 12-15 weeks after index surgery and 12 months after index surgery
Postoperative complications
Tidsramme: 30 days after index surgery

Assessed by validated instruments, Clavien-Dindo Classification
30 days after index surgery
Readmissions
Tidsramme: 30 days after index surgery

Assessed by review of hospital records from the day of discharge after index surgery
30 days after index surgery
Length of hospital stay
Tidsramme: From date of index surgery to the date of discharge or at latest 90 days after index surgery

Assessed by review of hospital records
From date of index surgery to the date of discharge or at latest 90 days after index surgery
Extent of surgery vs survival
Tidsramme: Up to 60 months after index surgery

Measured by surgical complexity score (as defined by the Mayo and Karolinska Surgical Complexity scores) and Peritoneal Cancer Index (PCI) both by assessment at the preoperative multidisciplinary conference

The agreement between preoperative and peroperative assessment of surgical extent needed to achive complete macroscopic resection.
Up to 60 months after index surgery
Sarcopenia vs post-operative outcome
Tidsramme: Up to 60 months after index surgery

Sarcopenia is measured by computed tomography and different muscle groups by different software programs (e.g. Coreslicer, Slice-o-matic etc.).
Up to 60 months after index surgery
Standard regimen of adjuvant chemotherapy
Tidsramme: At 1 year after index surgery

Standard regimen of adjuvant chemotherapy is defined as Carboplatin (AUC 5) and Paclitaxel (175 mg/m2) every 21 days for 6 cycles. Dose and frequency will be assessed by review of hospital records
At 1 year after index surgery
Time interval to adjuvant chemotherapy
Tidsramme: From index surgery to first infusion of adjuvant chemotherapy

Assessed by review of hospital records.
From index surgery to first infusion of adjuvant chemotherapy
Total number of hospital days and readmissions within90 days after index surgery
Tidsramme: 90 days after index surgery

Total number of hospital days within 90 days after index surgery by review of hospital records
90 days after index surgery
Health economics
Tidsramme: At baseline, 12-15 weeks after index surgery and 1 year after index surgery

Health economics will be assessed by the Eq5D-5L validated instrument
At baseline, 12-15 weeks after index surgery and 1 year after index surgery
Recurrence or progression free survival
Tidsramme: Up to 60 months after index surgery

Defined as the time interval between index surgery and the date of recurrence or death, whichever comes first. For event-free patients recurrence free survival is the time between index surgery and the date for the last follow-up visit by review of medical records.
Up to 60 months after index surgery

Samarbejdspartnere og efterforskere

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

Sponsor

Sahar Salehi

Efterforskere

  • Studieleder: Sahar Salehi, MD, PhD, Karolinska University Hospital

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.

Generelle publikationer

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)

11. marts 2024

Primær færdiggørelse (Anslået)

28. marts 2030

Studieafslutning (Anslået)

28. marts 2031

Datoer for studieregistrering

Først indsendt

26. februar 2024

Først indsendt, der opfyldte QC-kriterier

1. marts 2024

Først opslået (Faktiske)

7. marts 2024

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Faktiske)

28. september 2026

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

25. september 2026

Sidst verificeret

1. september 2026

Mere information

Begreber relateret til denne undersøgelse

Yderligere relevante MeSH-vilkår

Andre undersøgelses-id-numre

  • 2023-04696-01
  • 2023 (U.S. NIH-bevilling/kontrakt)

Lægemiddel- og udstyrsoplysninger, undersøgelsesdokumenter

Studerer et amerikansk FDA-reguleret lægemiddelprodukt

Ingen

Studerer et amerikansk FDA-reguleret enhedsprodukt

Ingen

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