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En undersøgelse til at vurdere behandlingsmønstre og behandlingsoverholdelse hos deltagere med tidlig HER2-positiv brystkræft efter decentralisering af behandlingen (Close2HER)

5. november 2026 opdateret af: Hoffmann-La Roche

Real-World-Forskning af Behandlingsmønstre og Behandlingsoverholdelse i Tidlig HER2-positiv Brystkræft i Serbien Efter Behandlingsdecentralisering (Close2HER)

The main purpose of this study is to evaluate the impact of a decentralized treatment model on treatment adherence in participants with early-stage human epidermal growth factor receptor 2- positive (HER2+) breast cancer (BC).

This study has 2 groups: Group 1: Consistent Travel Burden (Cohorts A, C, and D), will include participants whose adjuvant therapy location does not increase their travel requirements, and Group 2: Increased Travel Burden (Cohort B), will include participants who must travel from a secondary center to a tertiary center to receive their adjuvant therapy.

Studieoversigt

Status

Rekruttering

Betingelser

Undersøgelsestype

Observationel

Tilmelding (Anslået)

100

Kontakter og lokationer

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

Studiekontakt

  • Navn: Fastest response: use the inquiry form. https://www.gene.com/contact-us/submit-medical-inquiry

Undersøgelse Kontakt Backup

  • Navn: Reference Study ID Number: ML46477 https://forpatients.roche.com/ No attachments to email below.
  • Telefonnummer: 888-662-6728 (U.S. Only)
  • E-mail: global-roche-genentech-trials@gene.com

Studiesteder

    • Bolnička 65
      • Loznica, Bolnička 65, Serbien, 15300
        • Rekruttering
        • Health Centre Loznica
    • Bratstva Jedinstva 135
      • Požarevac, Bratstva Jedinstva 135, Serbien, 12000
        • Rekruttering
        • General Hospital Požarevac
    • Dragiše Mišovića 1
      • Bor, Dragiše Mišovića 1, Serbien, 19210
        • Rekruttering
        • Healthcare Centre Bor
    • Dunavska 1-3
      • Kladovo, Dunavska 1-3, Serbien, 19320
        • Rekruttering
        • Health Centre Kladovo
    • Knez Mihailova 51
      • Smederevo, Knez Mihailova 51, Serbien, 11300
        • Rekruttering
        • Health Centre ''Sveti Luka'' Smederevo
    • Miloša Trebinjca 11
      • Pančevo, Miloša Trebinjca 11, Serbien, 26000
        • Rekruttering
        • General Hospital Pančevo
    • Pasterova 14
      • Belgrade, Pasterova 14, Serbien, 11000
        • Rekruttering
        • Institute for Onocology and Radiology of Serbia
    • Popa Karana 2-4
      • Šabac, Popa Karana 2-4, Serbien, 15000
        • Rekruttering
        • General Hospital "Dr Laza K. Lazarevic" Sabac
    • Sinđelićeva 62
      • Valjevo, Sinđelićeva 62, Serbien, 14000
        • Rekruttering
        • Health Centre Valjevo
    • Vuka Karadžića 147
      • Smederevska Palanka, Vuka Karadžića 147, Serbien, 11420
        • Rekruttering
        • General Hospital ''Stefan Visoki'' Smederevska Palanka

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

Prøveudtagningsmetode

Ikke-sandsynlighedsprøve

Studiebefolkning

The study population will consist of participants diagnosed with HER2-positive eBC who are initiating or undergoing treatment following a nationwide healthcare policy change in Serbia that decentralized the administration of anti-HER2 therapies.

Beskrivelse

Inclusion Criteria:

  • Diagnosis of stage II and III HER2+ eBC according to European Society For Medical Oncology (ESMO) guidelines
  • Underwent curative-intent surgical resection for BC
  • Histologically documented HER2-positive BC (determined per American Society of Clinical Oncology [ASCO]/College of American Pathologists [CAP] guidelines) before or after surgery

Exclusion Criteria:

  • Any medical or psychiatric condition that, in the investigator's opinion, would compromise the participant's ability to provide informed consent or to complete study-related questionnaires
  • Receipt of prior neoadjuvant or adjuvant therapy for HER2+ BC at a center other than the 10 participating study sites (Bor, Kladovo, Institute for oncology and Radiology of Serbia (IORS), Loznica, Pančevo, Požarevac, Smederevo, Smederevska Palanka, Šabac, Valjevo)
  • Participants administratively belonging to the following secondary centers: Bor, Kladovo, Loznica, Pančevo, Požarevac, Smederevo, Smederevska Palanka, Šabac, or Valjevo, who initiated neoadjuvant therapy at IORS instead of their local secondary center

Studieplan

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

Hvordan er undersøgelsen tilrettelagt?

Design detaljer

  • Observationsmodeller: COHORT
  • Tidsperspektiver: PROSPECTIVE

Kohorter og interventioner

Gruppe / kohorte
Group 1: Cohort A

Participants who received neoadjuvant therapy and achieved pathological complete response (pCR) and receive their adjuvant treatment at a designated secondary or tertiary center, administratively assigned based on their place of residence will be observed to assess the impact on quality of life (QoL) and travel burden. All treatment decisions will be made at the discretion of the treating physician and participant, reflecting routine clinical practice without any study-mandated interventions.

Group 2: Cohort B

Participants who received neoadjuvant therapy at a secondary center and were subsequently found to have residual invasive disease will be referred to a centralized referent tertiary institution to receive their adjuvant treatment and will be observed to assess the impact on QoL and travel burden. All treatment decisions will be made at the discretion of the treating physician and participant, reflecting routine clinical practice without any study-mandated interventions.

Group 1: Cohort C

Participants who received neoadjuvant therapy at their designated tertiary center, which is the institution administratively assigned based on their place of residence, and subsequently found to have residual invasive disease will continue with adjuvant treatment at the same institution, and will be observed to assess the impact on QoL and travel burden. All treatment decisions will be made at the discretion of the treating physician and participant, reflecting routine clinical practice without any study-mandated interventions.

Group 1: Cohort D

Participants who missed neoadjuvant therapy and underwent primary BC surgery will start adjuvant treatment at their designated secondary hospital or tertiary center, which is the institution administratively assigned based on their place of residence and will be observed to assess the impact on QoL and travel burden. All treatment decisions will be made at the discretion of the treating physician and participant, reflecting routine clinical practice without any study-mandated interventions.

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Tidsramme
Behandlingsoverholdelsesrate
Tidsramme: Op til 2,25 år
Op til 2,25 år

Sekundære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Behandlingsgennemførelsesrate for Anti-HER2-behandling
Tidsramme: Op til 2,25 år
Op til 2,25 år
Procentdel af deltagere med ≥1 dosisudskydelser, der overskrider en foruddefineret tærskel (3 uger) fra den planlagte dato
Tidsramme: Op til 2,25 år
Op til 2,25 år
Tid til start af adjuvant behandling
Tidsramme: Tid fra operation til start af adjuvante behandling (op til ca. 1,25 år)
Tid fra operation til start af adjuvante behandling (op til ca. 1,25 år)
Mean Travel Burden Between Group 1 (Cohorts A, C, D) and Group 2 (Cohort B) During the Adjuvant Therapy Phase
Tidsramme: Up to 2.25 years

Travel Burden is a composite measure encompassing both objective and subjective components. Objective travel burden is defined by the one-way travel distance (in kilometers [km]) and one-way travel time (in minutes) from the participant's residence to the treatment center. Subjective travel burden will capture the participant's personal experience and will be assessed using patient-reported outcomes collected via dedicated questionnaires.

Up to 2.25 years
Cohort B: Change in Intra-participant Travel Burden Between the Neoadjuvant and Adjuvant Treatment Centers
Tidsramme: Up to 2.25 years

Travel Burden is a composite measure encompassing both objective and subjective metrices. Objective travel metrics include driving distance and travel time and subjective, patient-reported metrics include out-of-pocket costs, mode of transport, and perceived travel-related challenges. Intra-participant travel burden between the Neoadjuvant and Adjuvant treatment centers will be done as a longitudinal analysis of the change in these metrics from the neoadjuvant to the adjuvant phase.

Up to 2.25 years
Difference in the European Organisation for Research and Treatment of Cancer Quality of Life Questionnaire - Core 30 (EORTC QLQ-C30) Global Health Status (GHS)/QoL Score, Between Participants of Cohort B and Cohort C
Tidsramme: At 6 months post-baseline

EORTC QLQ-C30 is a cancer-specific instrument consisting of 30 questions that evaluates 5 aspects of participant functioning (physical, emotional, role, cognitive, & social), 3 symptom scales (fatigue, nausea & vomiting, & pain), GHS/QoL & 6 single items (dyspnea, insomnia, appetite loss, constipation, diarrhea & financial difficulties). The GHS/QoL questions will be scored on a 7-point scale, with scores ranging from 1=Very poor to 7=Excellent. Scores will be linearly transformed to a range of 0-100. A high score for a GHS/QoL scale indicates a better health-related quality of life (HRQoL).

At 6 months post-baseline
Mean Intra-patient Change in the EORTC QLQ-C30 GHS/QoL Score
Tidsramme: Cohorts A, B and C: Baseline to Month 6; Cohort D: Month 6 to Month 12

EORTC QLQ-C30 is a cancer-specific instrument consisting of 30 questions that evaluates 5 aspects of participant functioning (physical, emotional, role, cognitive, & social), 3 symptom scales (fatigue, nausea & vomiting, & pain), GHS/QoL & 6 single items (dyspnea, insomnia, appetite loss, constipation, diarrhea & financial difficulties). The GHS/QoL questions will be scored on a 7-point scale, with scores ranging from 1=Very poor to 7=Excellent. Scores will be linearly transformed to a range of 0-100. A high score for a GHS/QoL scale indicates a better HRQoL.

Cohorts A, B and C: Baseline to Month 6; Cohort D: Month 6 to Month 12
Time to Neoadjuvant Treatment Initiation
Tidsramme: At Baseline

Time to Neoadjuvant Treatment Initiation was defined as time from early breast cancer (eBC) diagnosis to the start of neoadjuvant treatment. Data for neoadjuvant treatment will be collected retrospectively at the baseline visit using the participant's medical records.

At Baseline
Time to Surgery
Tidsramme: At Baseline

Time to surgery was defined as the time from the neoadjuvant treatment completion to surgery. Data for neoadjuvant treatment will be collected retrospectively at the baseline visit using the participant's medical records.

At Baseline
Percentage of Participants Treated at Least Once With Neoadjuvant Therapy
Tidsramme: At Baseline

Data for neoadjuvant treatment will be collected retrospectively at the baseline visit using the participant's medical records.

At Baseline
Percentage of Participants Not Treated With Neoadjuvant Therapy
Tidsramme: At Baseline

Data for neoadjuvant treatment will be collected retrospectively at the baseline visit using the participant's medical records.

At Baseline
Percentage of Participants With pCR After Neoadjuvant Systemic Therapy Completion
Tidsramme: At Baseline

Data for neoadjuvant treatment will be collected retrospectively at the baseline visit using the participant's medical records.

At Baseline

Samarbejdspartnere og efterforskere

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

Sponsor

Efterforskere

  • Studieleder: Clinical Trials, Hoffmann-La Roche

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)

23. februar 2026

Primær færdiggørelse (Anslået)

31. oktober 2028

Studieafslutning (Anslået)

31. oktober 2028

Datoer for studieregistrering

Først indsendt

7. april 2026

Først indsendt, der opfyldte QC-kriterier

7. april 2026

Først opslået (Faktiske)

14. april 2026

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Faktiske)

6. november 2026

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

5. november 2026

Sidst verificeret

1. november 2026

Mere information

Begreber relateret til denne undersøgelse

Andre undersøgelses-id-numre

  • ML46477

Plan for individuelle deltagerdata (IPD)

Planlægger du at dele individuelle deltagerdata (IPD)?

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