NCT06044623

Brief Summary

IMPORTANT study is a multicenter, open-label, prospective, randomized-controlled, non-inferiority trial with a pragmatic approach involving older patients (≥ 70 years old) with advanced hormone receptor (HR)-positive/human epidermal growth factor receptor 2 (HER2)-negative breast cancer, not amenable for curative treatment and without prior therapy for advanced disease, who are suitable to receive CDK 4/6-inhibitors plus endocrine therapy as first line therapy. The study implements two approaches with high level of evidence, namely the use of comprehensive geriatric assessment (CGA) approach in treatment decision making and the use of CDK 4/6-inhibitors as the initial treatment of choice, to investigate whether a common clinical practice (starting dose reduction of CDK 4/6-inhibitors in older patients) with evidence of low certainty can be standardized using a more individualized-based approach. On the basis of baseline CGA assessment, patients will either receive full dose of CDK 4/6-inhibitors plus endocrine therapy (if patients are fit according to CGA) or be randomized to full dose vs. reduced initial dose of CDK 4/6-inhibitors (if vulnerable or frail according to CGA). The study hypothesis is that adjusting the dose according to vulnerability will allow patients to tolerate treatment better without jeopardizing the treatment efficacy. This project has received funding from the European Union's HORIZON 2022 research and innovation actions supporting the implementation of the Mission on Cancer under grant agreement No 101104589.

Trial Health

83
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
495

participants targeted

Target at P50-P75 for phase_3

Timeline
37mo left

Started Apr 2024

Longer than P75 for phase_3

Geographic Reach
6 countries

12 active sites

Status
recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Progress41%
Apr 2024May 2029

First Submitted

Initial submission to the registry

September 13, 2023

Completed
8 days until next milestone

First Posted

Study publicly available on registry

September 21, 2023

Completed
6 months until next milestone

Study Start

First participant enrolled

April 1, 2024

Completed
4.6 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

October 31, 2028

Expected
7 months until next milestone

Study Completion

Last participant's last visit for all outcomes

May 31, 2029

Last Updated

November 19, 2024

Status Verified

November 1, 2024

Enrollment Period

4.6 years

First QC Date

September 13, 2023

Last Update Submit

November 15, 2024

Conditions

Outcome Measures

Primary Outcomes (1)

  • Time to treatment failure

    The time from randomization to treatment discontinuation because of any reason including disease progression, treatment toxicity, or death due to any cause.

    Up to 5 years from treatment initiation

Secondary Outcomes (8)

  • Overall treatment utility (OTU)

    Three months after treatment initiation

  • Overall survival

    Up to 5 years from treatment initiation

  • Progression free survival

    Up to 5 years from treatment initiation

  • Time to chemotherapy initiation

    Up to 5 years from treatment initiation

  • Frequency of adverse events

    Up to 5 years from treatment initiation

  • +3 more secondary outcomes

Study Arms (3)

Lower initial dose of CDK 4/6-inhibitor (vulnerable/frail patient cohort)

EXPERIMENTAL

-1 level dose reduction as initial dose of either one of the CDK 4/6-inhibitors: Palbociclib 100 mg x 1 for 21 days with 7 days off; or Ribociclib 400 mg x 1 for 21 days with 7 days off; or Abemaciclib 100 mg x 2 daily added to endocrine therapy.

Drug: CDK 4/6 inhibitorsDrug: Endocrine therapy

Full initial dose of CDK 4/6-inhibitor (vulnerable/frail patient cohort)

ACTIVE COMPARATOR

Full initial dose of either one of the CDK 4/6-inhibitors: Palbociclib 125 mg x 1 for 21 days with 7 days off; or Ribociclib 600 mg x 1 for 21 days with 7 days off; or Abemaciclib 150 mg x 2 daily) added to physician's choice endocrine therapy.

Drug: CDK 4/6 inhibitorsDrug: Endocrine therapy

Full initial dose of CDK 4/6-inhibitor (fit patient cohort)

OTHER

Full initial dose of either one of the CDK 4/6-inhibitors: Palbociclib 125 mg x 1 for 21 days with 7 days off; or Ribociclib 600 mg x 1 for 21 days with 7 days off; or Abemaciclib 150 mg x 2 daily) added to physician's choice endocrine therapy.

Drug: CDK 4/6 inhibitorsDrug: Endocrine therapy

Interventions

Either Palbociclib, Ribociclib or Abemaciclib

Full initial dose of CDK 4/6-inhibitor (fit patient cohort)Full initial dose of CDK 4/6-inhibitor (vulnerable/frail patient cohort)Lower initial dose of CDK 4/6-inhibitor (vulnerable/frail patient cohort)

Either Letrozole, Anastrozole, Exemestane or Fulvestrant in combination with CDK 4/6-inhibitor

Full initial dose of CDK 4/6-inhibitor (fit patient cohort)Full initial dose of CDK 4/6-inhibitor (vulnerable/frail patient cohort)Lower initial dose of CDK 4/6-inhibitor (vulnerable/frail patient cohort)

Eligibility Criteria

Age70 Years+
Sexall
Healthy VolunteersNo
Age GroupsOlder Adult (65+)

You may qualify if:

  • Patients male or female aged at least 70 years old at the time of informed consent.
  • Histologically or cytologically confirmed diagnosis of HR-positive (defined as estrogen-receptor ≥ 1%), HER2-negative breast cancer according to analysis of the most recent tumor specimen by local laboratory.
  • Advanced (locoregionally recurrent or metastatic) breast cancer not amenable to curative treatment.
  • No prior systemic treatment for advanced disease (recurrence during neo-/adjuvant endocrine therapy is allowed). A prior period of treatment with aromatase inhibitors or fulvestrant for up to 28 days from the CDK 4/6-inhibitor initiation is allowed.
  • Adjuvant treatment with CDK 4/6-inhibitors is allowed provided a disease-free interval from treatment end \>12 months.
  • Either measurable disease or non-measurable bone only disease, but evaluable according to RECIST criteria 1.1.
  • Written informed consent prior to any study-specific procedures.
  • Adequate organ function as defined in the summary of product characteristics (SmPC) for the CDK 4/6-inhibitors that is planned to be used.
  • Able to swallow capsules.
  • Able to understand and consent in English language or in native language for each participating country.

You may not qualify if:

  • Eligible patients will be excluded if they have one of the following criteria:
  • Patients considered from treating physician as non-suitable for treatment with CDK 4/6-inhibitors.
  • Contraindications according to SmPC for the CDK 4/6-inhibitors that is planned to be used.
  • Presence of visceral crisis, lymphangitis carcinomatosis, or leptomeningeal carcinomatosis.
  • History of any other cancer (except of non-melanoma skin cancer or carcinoma in-situ of the cervix), unless in complete remission with no therapy for a minimum of 3 years.
  • Participating in other interventional trial.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (12)

Department of Oncology, Helsinki University Hospital Comprehensive Cancer Center and University of Helsinki

Helsinki, Finland

RECRUITING

Fourth Oncology Department & Comprehensive Clinical Trials Center, Metropolitan Hospital

Athens, Greece

NOT YET RECRUITING

Second Department of Medical Oncology, Hygeia Hospital

Athens, Greece

NOT YET RECRUITING

Division of Oncology, Department of Medicine, University Hospital, University of Patras Medical School

Pátrai, Greece

NOT YET RECRUITING

Medical Oncology Unit, S. Andrew Hospital

Pátrai, Greece

NOT YET RECRUITING

Second Department of Medical Oncology, Euromedica General Clinic

Thessaloniki, Greece

NOT YET RECRUITING

Radiation Oncology Unit - Oncology Department, Azienda Ospedaliero Universitaria Careggi

Florence, Italy

NOT YET RECRUITING

"Sandro Pitigliani" Department of Medical Oncology, Hospital of Prato

Prato, Italy

NOT YET RECRUITING

Department of Oncology, Akershus University Hospital (AHUS)

Oslo, Norway

NOT YET RECRUITING

Department of Medical Oncology, Hospital Clinic of Barcelona

Barcelona, Spain

NOT YET RECRUITING

Department of Oncology, Örebro University Hospital

Örebro, Sweden

RECRUITING

Department of Oncology, Uppsala University Hospital

Uppsala, 75185, Sweden

NOT YET RECRUITING

Related Publications (1)

  • Valachis A, Biganzoli L, Christopoulou A, Fjermeros K, Fountzila E, Geisler J, Gomez-Bravo R, Karihtala P, Kosmidis P, Koutras A, Linardou H, Lindman H, Martinez-Ballestero I, Rodriguez AB, Meattini I, Munoz-Mateu M, Othman M, Psyrri A, Risi E, Schiza A, Spathas N, Utriainen M, Visani L, Ballesteros S, Basdekis I, Hay SD, Fotis T, Fricker S, de Graaf G, Jenset M, Kanters T, Lampropoulos K, Markou C, Mastoraki K, Nanou C, Reales Aviles JM, Santaholma M, Kosmidis T. Implementing geriatric assessment for dose optimization of CDK4/6 inhibitors in older breast cancer patients. Future Oncol. 2024;20(37):2937-2948. doi: 10.1080/14796694.2024.2413841. Epub 2024 Oct 21.

MeSH Terms

Conditions

Breast Neoplasms

Condition Hierarchy (Ancestors)

Neoplasms by SiteNeoplasmsBreast DiseasesSkin DiseasesSkin and Connective Tissue Diseases

Study Officials

  • Antonios Valachis, Assoc Prof

    Region Örebro län

    STUDY CHAIR

Central Study Contacts

Antonios Valachis, Assoc Prof

CONTACT

Study Design

Study Type
interventional
Phase
phase 3
Allocation
RANDOMIZED
Masking
NONE
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

September 13, 2023

First Posted

September 21, 2023

Study Start

April 1, 2024

Primary Completion (Estimated)

October 31, 2028

Study Completion (Estimated)

May 31, 2029

Last Updated

November 19, 2024

Record last verified: 2024-11

Locations