A Study of Incidence, Treatment Patterns, and Outcomes in Transfusion-dependent Lower-risk Myelodysplastic Syndromes in Spain
Observational Retrospective Study on Incidence, First-line Treatment Patterns, and Clinical Outcomes in Transfusion-dependent Lower-risk Myelodysplastic Syndromes in Spain Using the BIG-PAC® Database
1 other identifier
observational
1,300
1 country
1
Brief Summary
The purpose of this study is to understand the incidence of transfusion dependent lower-risk myelodysplastic syndromes (TD LR-MDS) and describing real-world first-line treatment patterns, healthcare resource utilization, and associated clinical outcomes in adult patients with TD LR-MDS in Spain
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for all trials
Started Feb 2026
Shorter than P25 for all trials
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
Study Start
First participant enrolled
February 2, 2026
CompletedFirst Submitted
Initial submission to the registry
February 24, 2026
CompletedFirst Posted
Study publicly available on registry
March 11, 2026
CompletedPrimary Completion
Last participant's last visit for primary outcome
April 23, 2026
CompletedStudy Completion
Last participant's last visit for all outcomes
November 27, 2026
ExpectedOctober 1, 2026
September 1, 2026
3 months
February 24, 2026
September 30, 2026
Conditions
Keywords
Outcome Measures
Primary Outcomes (2)
Incidence of transfusion dependent lower-risk myelodysplastic syndromes (TD LR-MDS)
Up to 5-years
Prevalence of transfusion dependent lower-risk myelodysplastic syndromes (TD LR-MDS)
Up to 5-years
Secondary Outcomes (23)
Proportion of participants receiving each first-line treatment category
Up to 5-years
Proportion of participants by treatment category at each line of therapy
Up to 5-years
Treatment duration (time from initiation to discontinuation) of first-line treatment
Up to 5-years
Defined as number of RBC units received per participant per 8-weeks
Up to 5-years
Number and Rate of Healthcare Resource Utilization Events
Up to 5-years
- +18 more secondary outcomes
Study Arms (11)
Cohort 1
Overall cohort of participants with transfusion dependent lower-risk myelodysplastic syndromes (TD LR-MDS)
Cohort 2
Participants that initiated first-line treatment with erythropoiesis-stimulating agents (ESAs)
Cohort 3
Participants that initiated first-line treatment with luspatercept
Cohort 4
Participants that initiated first-line treatment with hypomethylating agents (HMAs)
Cohort 5
Participants that initiated first-line treatment with lenalidomide
Cohort 6
Participants that receive conservative management (red blood cell transfusions without disease modifying therapy)
Cohort 7
Participants with low red-blood cell (RBC) transfusion dependance (\<4 RBC per 8 weeks)
Cohort 8
Participants with moderate red-blood cell (RBC) transfusion dependance (4-5 RBC per 8 weeks)
Cohort 9
Participants with high red-blood cell (RBC) transfusion dependance (≥6 RBC per 8 weeks)
Cohort 10
Participants aged \<75 years
Cohort 11
Participants aged ≥75 years
Interventions
According to the product label
According to the product label
Eligibility Criteria
The study population will consist of adult participants diagnosed with transfusion dependent lower-risk myelodysplastic syndromes (TD LR-MDS) identified in Spain using the BIG-PAC® database
You may qualify if:
- Age ≥18 years at the time of lower-risk myelodysplastic syndromes (LR-MDS) diagnosis.
- Documented diagnosis of LR-MDS identified through International Classification of Diseases (ICD) 9 codes recorded in medical history. In addition, recorded diagnosis of MDS with an explicitly documented International Prognostic Scoring System (IPSS) category of low or intermediate-1 and/or revised IPSS category of very low or low at or around the index date.
- Evidence of transfusion dependence, defined as receiving ≥2 red blood cell (RBC) units within an 8-week interval, occurring within the selection window (January 1, 2021, to May 31, 2025, or the latest date ensuring detectable follow-up).
- Active participants in BIG-PAC®, defined as ≥1 claim of any kind within 12 months prior to or on the index date (baseline period).
- A minimum of 6 months of follow-up data available after the index date, unless the patient dies earlier
You may not qualify if:
- Diagnosis of high-risk MDS (HR-MDS) or another hematologic malignancy (e.g., acute myeloid leukemia) before the index date.
- Documented transformation to acute myeloid leukemia (AML) or HR-MDS occurring before initiation of first-line treatment.
- Participation in interventional clinical trials during the period of first-line treatment.
- Presence of anemia secondary to non-MDS-related causes, such as nutritional deficiencies, advanced chronic kidney disease, or active bleeding, when such conditions preclude accurate attribution of transfusion dependence to MDS.
- Lack of sufficient clinical history, defined as \<12 months of observable data before the index date.
- Have missing key variables, e.g., age or sex.
- Incomplete or inconsistent clinical information that prevents reliable evaluation of key study variables, including transfusion dependence status, treatment patterns, or outcomes.
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
Local Institution - 0001
Madrid, 28001, Spain
Related Links
MeSH Terms
Interventions
Intervention Hierarchy (Ancestors)
Study Officials
- STUDY DIRECTOR
Bristol-Myers Squibb
Bristol-Myers Squibb
Study Design
- Study Type
- observational
- Observational Model
- COHORT
- Time Perspective
- RETROSPECTIVE
- Sponsor Type
- INDUSTRY
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
February 24, 2026
First Posted
March 11, 2026
Study Start
February 2, 2026
Primary Completion
April 23, 2026
Study Completion (Estimated)
November 27, 2026
Last Updated
October 1, 2026
Record last verified: 2026-09
Data Sharing
- IPD Sharing
- Will not share