A Prospective Observational Study to Describe Clinical Outcomes, Treatment Patterns, Patients Characteristics Among Patients With HR+/HER2- Advanced BC Initiating Treatment With Risarg®, Piqray®, Endocrine Therapy or Chemotherapy in Routine Clinical Practice in Russia (PROSPERITY)

A Prospective Observational Study to Describe Clinical Outcomes, Treatment Patterns, Patients Characteristics Among Patients With HR+/HER2- Advanced BC Initiating Treatment With Risarg® (Ribociclib), Piqray® (Alpelisib), Endocrine Therapy or Chemotherapy in Routine Clinical Practice in Russia

This study is planned as a prospective multicenter NIS. This study is observational in nature and does not impose a therapy protocol, diagnostic/therapeutic interventions or a visit schedule. Patients with HR+/ HER2- advanced or metastatic BC that initiated treatment with ribociclib, alpelisib, mono endocrine therapy or chemotherapy will be included into the study across seven Russian districts.

Study Overview

• Status: Completed
• Conditions: Breast Cancer
• Intervention / Treatment: Other: ribociclib; Other: aplelicib; Other: mono endocrine therapy; Other: chemotherapy

Detailed Description

Patients will attend the sites in accordance with routine clinical practice. It is assumed that visits will be conducted every 3-4 months. Patients will undergo standard procedures and tests according to clinical guidelines and physician's judgement. Available data from routine clinical management of the patients will be collected at patients' visits to the clinical site. Patients enrolled in the study will be followed up until death or study close whichever occurs first. The recruitment period is planned for 24 months, observation period for maximum of 24 months, with total duration of study 4 years. Patients may discontinue from this NIS at any time.

• Study Type: Observational
• Enrollment (Actual): 2424

Contacts and Locations

Study Locations

• Russia
  • Arkhangelsk, Russia, 163045
    • Novartis Investigative Site
  • Barnaul, Russia, 656045
    • Novartis Investigative Site
  • Belgorod, Russia, 308010
    • Novartis Investigative Site
  • Bryansk, Russia, 241028
    • Novartis Investigative Site
  • Cheboksary, Russia, 428020
    • Novartis Investigative Site
  • Chelyabinsk, Russia, 454087
    • Novartis Investigative Site
  • Cherkessk, Russia, 369000
    • Novartis Investigative Site
  • Chita, Russia, 672027
    • Novartis Investigative Site
  • Irkutsk, Russia, 664035
    • Novartis Investigative Site
  • Ivanovo, Russia, 153040
    • Novartis Investigative Site
  • Izhevsk, Russia, 426009
    • Novartis Investigative Site
  • Kaliningrad, Russia, 236016
    • Novartis Investigative Site
  • Khabarovsk, Russia, 680042
    • Novartis Investigative Site
  • Khanty-Mansiysk, Russia, 628012
    • Novartis Investigative Site
  • Kirov, Russia, 610021
    • Novartis Investigative Site
  • Kostroma, Russia, 156005
    • Novartis Investigative Site
  • Krasnodar, Russia, 350040
    • Novartis Investigative Site
  • Krasnoyarsk, Russia, 660022
    • Novartis Investigative Site
  • Moscow, Russia, 143423
    • Novartis Investigative Site
  • Moscow, Russia, 115522
    • Novartis Investigative Site
  • Moscow, Russia, 129110
    • Novartis Investigative Site
  • Moscow, Russia, 111123
    • Novartis Investigative Site
  • Moscow, Russia, 115304
    • Novartis Investigative Site
  • Moscow, Russia, 105005
    • Novartis Investigative Site
  • Moscow Region Balas, Russia, 143900
    • Novartis Investigative Site
  • Nal'chik, Russia, 360051
    • Novartis Investigative Site
  • Nizhny Novgorod, Russia, 603081
    • Novartis Investigative Site
  • Novosibirsk, Russia, 630108
    • Novartis Investigative Site
  • Odintsovo, Russia, 143003
    • Novartis Investigative Site
  • Omsk, Russia, 644013
    • Novartis Investigative Site
  • Perm, Russia, 614066
    • Novartis Investigative Site
  • Podolsk, Russia, 142110
    • Novartis Investigative Site
  • Pyatigorsk, Russia, 357502
    • Novartis Investigative Site
  • Rostov-on-Don, Russia, 344006
    • Novartis Investigative Site
  • Saint Petersburg, Russia, 197758
    • Novartis Investigative Site
  • Saint Petersburg, Russia, 191104
    • Novartis Investigative Site
  • Saint Petersburg, Russia, 194214
    • Novartis Investigative Site
  • Saransk, Russia, 430032
    • Novartis Investigative Site
  • Saratov, Russia, 410053
    • Novartis Investigative Site
  • Sestroretsk, Russia, 197706
    • Novartis Investigative Site
  • Sevastopol’, Russia, 299045
    • Novartis Investigative Site
  • Severodvinsk, Russia, 450054
    • Novartis Investigative Site
  • Simferopol, Russia, 295023
    • Novartis Investigative Site
  • Tambov, Russia, 392000
    • Novartis Investigative Site
  • Tula, Russia, 300040
    • Novartis Investigative Site
  • Tver', Russia, 170008
    • Novartis Investigative Site
  • Tyumen, Russia, 625041
    • Novartis Investigative Site
  • Ufa, Russia, 450054
    • Novartis Investigative Site
  • Vladikavkaz, Russia, 362002
    • Novartis Investigative Site
  • Vladivostok, Russia, 690105
    • Novartis Investigative Site
  • Voronezh, Russia, 394036
    • Novartis Investigative Site
  • Yekaterinburg, Russia, 620036
    • Novartis Investigative Site
  • Yekaterinburg, Russia, 620027
    • Novartis Investigative Site
  • Yuzhno-Sakhalinsk, Russia, 693010
    • Novartis Investigative Site
  • Komi
    • Syktyvkar, Komi, Russia, 167904
      • Novartis Investigative Site
  • Russia
    • Kaluga, Russia, Russia, 248007
      • Novartis Investigative Site
  • Russian Federation
    • Sochi, Russian Federation, Russia, 354057
      • Novartis Investigative Site
  • Tymen Area
    • Surgut, Tymen Area, Russia, 628402
      • Novartis Investigative Site

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 18 years to 99 years (Adult, Older Adult)
• Accepts Healthy Volunteers: No

• Sampling Method: Non-Probability Sample

Study Population

Women with HR+/ HER2- advanced or metastatic BC that initiated treatment with ribociclib, alpelisib, monoET or CT within the study enrollment timeline will be provided by national oncology centers and hospitals that will be selected based on their experience in treating Breast Cancer.

Description

Inclusion Criteria:

1. Age ≥ 18 years at the moment of ribociclib, alpelisib, monoET or CT treatment initiation.
2. Female gender.
3. Confirmed diagnosis of locally advanced/metastatic not amenable to surgery HR+/HER2- BC (progressed following prior therapy or de novo) for whom the treating physicial took the decision to initiate treatment with ribociclib, alpelisib, monoET or CT before entering the study.
4. Patient who initiated treatment with ribociclib, alpelisib, monoET or CT no longer than 4 weeks (28 days) prior to written informed consent for this study.
5. Patients with ECOG performance status ≤ 2.
6. Provision of written informed consent.

Exclusion Criteria:

1. Patients with a life expectancy of less than 3 months at the time of aBC diagnosis per the investigator's judgment.
2. Patients participating in any interventional clinical trial that includes investigational or marketed products at the time of enrollment. (Patients participating in other investigator initiated trial or NIS can be included as long as their standard of care is not altered by the study).
3. Patients receiving active treatment for malignancies other than BC at the time of enrollment.
4. Patients who are unable to understand the nature of the study.

Study Plan

How is the study designed?

Number of groups / cohorts

4

Cohorts and Interventions

Group / Cohort	Intervention / Treatment
ribociclib + AI/fulvestrant; Patients administered ribociclib + AI/fulvestrant by prescription AI: Aromatase inhibitor	Other: ribociclib; There is no treatment allocation. Patients administered ribociclib by prescription that have started before inclusion of the patient into the study will be enrolled.
aplelicib + fulvestrant; Patients administered aplelicib + fulvestrant by prescription	Other: aplelicib; There is no treatment allocation. Patients administered aplelicib by prescription that have started before inclusion of the patient into the study will be enrolled.
mono endocrine therapy; Patients administered mono endocrine therapy by prescription	Other: mono endocrine therapy; There is no treatment allocation. Patients administered mono endocrine therapy by prescription that have started before inclusion of the patient into the study will be enrolled.
chemotherapy; Patients administered chemotherapy by prescription	Other: chemotherapy; There is no treatment allocation. Patients administered chemotherapy by prescription that have started before inclusion of the patient into the study will be enrolled.

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Time to treatment failure (TTF)	Defined as the time from study treatment initiation to the earliest of date of progression, date of death due to any cause, or date of discontinuation due to reasons other than 'Protocol violation' or 'Administrative problems'. The time to treatment failure for patients who did not experience treatment failure will be censored at last adequate tumor assessment.	Up to 24 months

Secondary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Line of treatment	Line of advanced breast cancer therapy when treatment of interest was prescribed; 1st; 2nd; 3rd; Later lines	Baseline
ECOG status	Eastern Cooperative Oncology Group (ECOG) Performance status: describes a patient's level of functioning in terms of their ability to care for themself, daily activity, and physical ability (walking, working, etc.). Scores can range from a lower value of 0 (fully active, able to carry on all pre-disease performance without restriction) up to 5 (dead)	Up to 24 months
Location of metastases	Locations of metastatic sited at study entry: Local; Lung; Liver; Central nervous system (CNS); Bone; Other	Baseline
Menopausal status	Menopausal status; PremenopausalOvarian suppressionOvarian ablation; PerimenopausalOvarian suppressionOvarian ablation; Postmenopausal	Baseline
Number of patients with comorbidities	Number of patients with comorbidities will be presented	Baseline
PIK3CA mutation status	PIK3CA mutation status; Confirmed PIK3CA mutation; Confirmed absence of PIK3CA mutation; No data available	Baseline
Proportions of patients by treatment pattern	Proportions of patients receiving the pre-stablished treatments	Up to 24 months
Proportions (%) of patients by treatment sequence	Proportions (%) of patients by treatment sequence: ribociclib in 1st line --> alpelisib in 2nd line.; alpelisib in 1st line --> ribociclib or other CDK4/6 inhibitor in 2nd line	Up to 24 months
Progression free survival (PFS)	Defined as the time from index date to the date of the first documented progression or death due to any cause. If a patient has not had an event, PFS will be censored at the date of the last adequate tumor assessment by local BC management guidelines.	Up to 24 months
Overall survival (OS)	Defined as the time from index date to date of death due to any cause. If a patient is not known to have died, then OS will be censored at the latest date the patient was known to be alive (on or before the cut-off date).	Up to 24 months
Time to chemotherapy (TTC)	Defined as the time from index date to the date of initiation of chemotherapy in patient who did not receive chemotherapy for advanced breast cancer at the inclusion. The time to chemotherapy for patients who did not receive any chemotherapy will be censored at the end of follow-up period.	Up to 24 months
Proportion (%) of patients with permanent discontinuation	Proportion of patients with permanent discontinuation to becollected	Up to 24 months
Reasons of permanent discontinuation	Reason of treatment discontinuation (if initial treatment was discontinued); Cancer progression; Adverse event; Death; Patient decision; Other	Up to 24 months
Proportion (%) of patients with dose adjustment	Proportion of patients with dose adjustment will be collected	Up to 24 months
Reasons of dose adjustment	Reasons of dose adjustment will be collected	Up to 24 months
Quality of life (EORTC QLQ-C30)	The changes from baseline to each visit where measured using QLQ-C30. EORTC-QLQ-C30 is a 30-item questionnaire developed to assess the quality of life of cancer patients. Subject's responses to 28 questions about their physical functioning, disease symptoms, global health status and utilities are scored on a 4-point scale (1=Not at all to 4=Very much), a low score indicates a high / healthy level of functioning. And the responses to 2 questions about health-related QoL are scored on a 7-point scale (1=Very poor to 7=Excellent), a high score indicates a high / healthy level of functioning. Using linear transformation, raw scores are standardized, so that scores range from 0 to 100.	Baseline
Quality of life (EQ-5D-5L)	EQ-5D-5L is a standardized participant completed questionnaire that measures health-related quality of life and translates that score into an index value or utility score. EQ-5D-5L consists of two components: a health state profile and an optional visual analogue scale (VAS). EQ-5D health state profile is comprised of 5 dimensions: mobility, self-care, usual activities, pain/discomfort and anxiety/depression. Each dimension has 5 levels: 1= no problems, 2= slight problems, 3=moderate problems, 4= severe problems, and 5= extreme problems. Higher scores indicated greater levels of problems across each of the five dimensions.	Baseline

Collaborators and Investigators

• Sponsor: Novartis Pharmaceuticals
• Investigators: Study Director: Novartis Pharmaceuticals, Novartis Pharmaceuticals

Study record dates

Study Major Dates

• Study Start (Actual): July 27, 2021
• Primary Completion (Actual): July 28, 2025
• Study Completion (Actual): July 28, 2025

Study Registration Dates

• First Submitted: June 21, 2021
• First Submitted That Met QC Criteria: June 21, 2021
• First Posted (Actual): June 29, 2021

Study Record Updates

• Last Update Posted (Actual): April 1, 2026
• Last Update Submitted That Met QC Criteria: March 26, 2026
• Last Verified: March 1, 2026

More Information

Terms related to this study

• Keywords: Breast Cancer; Russia; ribociclib; alpelisib; CDK4/6 inhibitors; Piqray; advanced HR+/HER2- breast cancer; Risarg
• Additional Relevant MeSH Terms: Neoplasms by Site; Neoplasms; Skin Diseases; Breast Diseases; Skin and Connective Tissue Diseases; Breast Neoplasms; Therapeutics; Drug Therapy; ribociclib
• Other Study ID Numbers: CLEE011ARU01

Plan for Individual participant data (IPD)

• Plan to Share Individual Participant Data (IPD)?: NO