pRospective Evaluation of Clinical Outcomes in Patients With metAsTatIс melanOma Treated With dabrafeNib and trAmetinib in reaL practicE

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

UNKNOWN

Total Enrollment

500 participants

Study Classification

OBSERVATIONAL

Study Start Date

2021-09-30

Study Completion Date

2024-09-30

Brief Summary

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Prospective evaluation of clinical outcomes in patients with resectable or metastatic BRAF+ melanoma treated with dabrafenib and trametinib in real practice

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Detailed Description

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Rationale and background It is now accepted by the majority of experts in oncology that most effective and safe therapy options should be considered for first-line treatment, including adjuvant setting. As the routine administration of drugs including dosing, treatment interruptions, and early termination in clinical practice may vary from procedures used in clinical trials, post-authorization "real-world" data are important to quantify feasibility, acceptance, and practical considerations on prescription of targeted therapy with Dabrafenib+Trametinib. Therefore, it is of great interest for clinical and scientific communities to evaluate patient and treatment choice used in routine practice of Russian oncology centers. The aim of this study is to asses clinical outcomes of patient receiving Dab+Tram in different substages of resectable melanoma and different lines in metastatic melanoma., Additionally, it is of interest to gain insights into real world data regarding quality of life of melanoma patients treated with Dabrafenib and Trametinib in adjuvant or metastatic setting.

Research question and objectives Primary objective The primary objective in the study is to estimate relapse-free survival (RFS) in melanoma patients in adjuvant settings and progression free survival (PFS) in melanoma patients in metastatic settings. Primary endpoints

• The primary efficacy endpoint of the study is 12-month RFS rate, definded as the time form index date to the date of first documented relapse or death due to any cause.

The primary efficacy endpoint of the study is 12-month PFS rate, defined as the time from the index date to the date of the first documented progression by investigator judgement or death due to any cause. If a patient has not had an event, PFS will be censored at the date of the last tumor assessment

Secondary objectives

* To describe patient populations receiving dabrafenib and trametinib for stage III resectable melanoma with respect to demographics and clinical characteristics at index date (baseline).
* To describe patient populations receiving dabrafenib and trametinib for stage IV metastatic melanoma with respect to demographics and clinical characteristics at index date (baseline).
* Evaluate retrospectively the sequence of therapy prior to initiating treatment with Dabrafenib and Trametinib.
* Analyze prospectively treatment options following disease recurrence or progression on treatment with Dabrafenib and Trametinib.
* Analyze proportion (%) of patients receiving adjuvant therapy with Dabrafenib and Trametinib for melanoma stage IIIA/IIIB/IIIC/IIID
* Analyze proportion (%) of patients receiving Dabrafenib and Trametinib in 1L/2L/3L/later lines in metastatic settings.
* Assess clinical outcomes (including treatment duration, treatment discontinuation rate) in melanoma patients treated with Dabrafenib and Trametinib in adjuvant settings in real-world practice.
* Assess clinical outcomes in melanoma patients treated with Dabrafenib and Trametinib in metastatic settings (including median PFS, treatment duration, RR and) in real-world practice.
* Assess safety of therapy of interest: rate of adverse events associated with the therapy, proportions of patients and reasons of dose adjustment on dabrafenib and trametinib, discontinuation rate and reasons of discontinuation in melanoma patients treated with Dabrafenib and Trametinib in adjuvant and metastatic in real-world practice.
* Describe changes in patient-reported symptoms and quality of life (QoL) in melanoma patients treated with Dabrafenib and Trametinib in real-world setting.

Study design Patients will attend study sites in accordance with routine clinical practice. It is assumed that visits will performed every 3-4 months, as it is stated by the current guidelines (1). Patients will undergo standard procedures and tests according to clinical guidelines and physician's judgement (1). Available data from routine clinical management of the patients will be collected in the course of visits to investigation site.

The supposed duration of observation within the study is 1 year which corresponds to the requested duration of adjuvant therapy and is in line with the median PFS - 11.1 months according to the COMBI D/V trials' analysis for dabrafenib+trametinib therapy in the first line treatment of metastatic cutaneous melanoma with BRAF mutation (2). The enrollment period will continue for two years.

Baseline assessments will include collection of patient demographic data, disease history, treatment history, laboratory data and physical examination results as assessed by clinicians and patient reported outcomes (PROs) for symptoms and QoL. Treatment history will include all pharmacological therapy, its duration, response duration, reason for discontinuation. QoL assessment is not a part of routine practice for some investigation sites, hence, QoL will be evaluated if it does not interfere routine practice.

At each following visit (as indicated above, approximately each 3-4 months up to 1 year) available information on treatment status, response and progression, PROs, patient performance status and any relevant adverse occurrences will be collected.

Setting and study population This study is planned as a prospective non-interventional multicenter study. This study is observational in nature and does not impose a therapy protocol, diagnostic/therapeutic interventions or a visit schedule. Patients with resectable or metastatic BRAF+ melanoma, in that treatment with dabrafenib and trametinib was initiated, either newly diagnosed or progressive during prior lines of therapy, will be included into the study. Initiation of dabrafenib+trametinib therapy will be considered an index event.

Adult patients receiving dabrafenib and trametitnib for adjuvant or metastatic melanoma treatment will be enrolled into study.

Variables All data will be collected in the course of prospective visits of patient to the clinical site according to routine practice. Demographic, disease and treatment-related variables will be collected in order to ensure completeness of data for endpoint analysis. Definitions of variables for analysis will be given in the relevant section of protocol.

Data sources Medical records and other disease-related documents will be used in the study.

Study size This study does not test any pre-defined statistical hypotheses therefore sample size and power calculation projections are not applicable. Since there is no formal hypothesis-testing, sample size for this study is based on the feasibility of enrolling the desired population during the enrolment period for this study.

Data analysis This is an exploratory study and no comparative analysis is planned. Descriptive statistics will be tabulated for the demographic and clinical characteristics and outcome variables. In all cases, point estimates as well as the corresponding two-sided 95% CI will be presented. No missing value imputation will be performed.

Kaplan-Meier method will be used for the analysis of time-to-event.

Milestones

Planned dates of study milestones:

Concept approved: 29 April 2021 Final protocol approval: 30 June 2021 Start of data collection (FPFV): 30 September 2021 End of enrollment (LPFV): 30 September 2023 End of primary data collection (LPLV): 30 September 2024 Final report on study results: 30 April 2025 Publication of study results: 30 September 2025

Conditions

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Melanoma Stage III Melanoma Stage IV Melanoma

Study Design

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Observational Model Type

COHORT

Study Time Perspective

PROSPECTIVE

Study Groups

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Adjuvant cohort

Patients with resectable stage III melanoma, reciveng dabrafenib and trametinib in adjuvant settings

Dabrafenib

Intervention Type DRUG

Observational stusy. No intervention is planned

Trametinib

Intervention Type DRUG

Observational stusy. No intervention is planned

Metastatic cohort

Patients with unresectable stage IIIC/D or stage IV melanoma, reciveng dabrafenib and trametinib in metastatic settings

Dabrafenib

Intervention Type DRUG

Observational stusy. No intervention is planned

Trametinib

* Patients with a life expectancy of less than 3 months at the time of melanoma diagnosis, per the investigator's judgment.
* Patients participating in any interventional clinical trial that includes investigational or marketed products at the time of enrollment. (Patients participating in other investigator initiated or other non-interventional study \[NIS\] can be included as long as their standard of care is not altered by the study).
* Patients on active treatment for malignancies other than melanoma at the time of enrollment.

Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No