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Skjørhet, livskvalitet og tidlig reversering av midlertidig defungerende stomi i eggstokkreft (FOLERO)

25. september 2026 oppdatert av: Sahar Salehi

Skrøpelighet, livskvalitet og tidlig reversering av midlertidig defungerende stomi i eggstokkreft (FOLERO): En prospektiv kohortstudie for å bestemme effekten av skrøpelighet på overlevelse og for å vurdere tidlig reversering av 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.

Studieoversikt

Status

Rekruttering

Forhold

Intervensjon / Behandling

Detaljert 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)

Studietype

Intervensjonell

Registrering (Antatt)

475

Fase

  • Ikke aktuelt

Kontakter og plasseringer

Denne delen inneholder kontaktinformasjon for de som utfører studien, og informasjon om hvor denne studien blir utført.

Studiekontakt

Studiesteder

  • Sverige
      • Gothenburg, Sverige, 41685
        • Rekruttering
        • Sahlgrenska University Hospital and Sahlgrenska Academy
        • Ta kontakt med:
        • Hovedetterforsker:
          • Pernilla Dahm-Kähler, MD, Prof.
        • Hovedetterforsker:
          • Charlotte Palmqvist, MD, PhD
      • Linköping, Sverige, 581 85
      • Lund, Sverige, 22185
        • Rekruttering
        • Skåne University Hospital
        • Ta kontakt med:
        • Hovedetterforsker:
          • Mihaela Asp, MD, PhD
        • Underetterforsker:
          • Päivi Kannisto, MD, Ass Prof
    • Solna
      • Stockholm, Solna, Sverige, 171 76

Deltakelseskriterier

Forskere ser etter personer som passer til en bestemt beskrivelse, kalt kvalifikasjonskriterier. Noen eksempler på disse kriteriene er en persons generelle helsetilstand eller tidligere behandlinger.

Kvalifikasjonskriterier

Alder som er kvalifisert for studier

18 år og eldre (Voksen, Eldre voksen)

Tar imot friske frivillige

Nei

Kjønn som er kvalifisert for studier

Hunn

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

Denne delen gir detaljer om studieplanen, inkludert hvordan studien er utformet og hva studien måler.

Hvordan er studiet utformet?

Designdetaljer

  • Primært formål: Annen
  • Tildeling: N/A
  • Intervensjonsmodell: Enkeltgruppeoppdrag
  • Masking: Ingen (Open Label)

Våpen og intervensjoner

Deltakergruppe / Arm
Intervensjon / Behandling
Eksperimentell: Frailty

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

Frailty and Quality of Life evaluation after surgery

Hva måler studien?

Primære resultatmål

Resultatmål
Tiltaksbeskrivelse
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
Tiltaksbeskrivelse
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

Samarbeidspartnere og etterforskere

Det er her du vil finne personer og organisasjoner som er involvert i denne studien.

Sponsor

Sahar Salehi

Etterforskere

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

Publikasjoner og nyttige lenker

Den som er ansvarlig for å legge inn informasjon om studien leverer frivillig disse publikasjonene. Disse kan handle om alt relatert til studiet.

Generelle publikasjoner

Studierekorddatoer

Disse datoene sporer fremdriften for innsending av studieposter og sammendragsresultater til ClinicalTrials.gov. Studieposter og rapporterte resultater gjennomgås av National Library of Medicine (NLM) for å sikre at de oppfyller spesifikke kvalitetskontrollstandarder før de legges ut på det offentlige nettstedet.

Studer hoveddatoer

Studiestart (Faktiske)

11. mars 2024

Primær fullføring (Antatt)

28. mars 2030

Studiet fullført (Antatt)

28. mars 2031

Datoer for studieregistrering

Først innsendt

26. februar 2024

Først innsendt som oppfylte QC-kriteriene

1. mars 2024

Først lagt ut (Faktiske)

7. mars 2024

Oppdateringer av studieposter

Sist oppdatering lagt ut (Faktiske)

28. september 2026

Siste oppdatering sendt inn som oppfylte QC-kriteriene

25. september 2026

Sist bekreftet

1. september 2026

Mer informasjon

Begreper knyttet til denne studien

Ytterligere relevante MeSH-vilkår

Andre studie-ID-numre

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

Legemiddel- og utstyrsinformasjon, studiedokumenter

Studerer et amerikansk FDA-regulert medikamentprodukt

Nei

Studerer et amerikansk FDA-regulert enhetsprodukt

Nei

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