NCT02964494 · Children's Hospital Medical Center, Cincinnati
The Congenital Dyserythropoietic Anemia Registry (CDAR)
What this study is about
The investigators have created and maintain a comprehensive registry for patients with the diagnosis of Congenital Dyserythropoietic Anemia (CDA) in North America.
View original scientific description
The investigators have created and maintain a comprehensive registry for patients with the diagnosis of Congenital Dyserythropoietic Anemia (CDA) in North America. The goal of this registry is to collect long-term confidential data on patients with CDA in the US, Canada, and Mexico and maintain a bio-repository of de-identified patient blood and bone marrow specimens as a tool for the investigation of epidemiology, natural history, biology, and molecular pathogenetic mechanisms of CDA.
Who can participate
This study lists these criteria on ClinicalTrials.gov. A study coordinator reviews eligibility during screening — this page does not determine whether you qualify.
Inclusion criteria
- Diagnosis of Congenital Dyserythropoietic Anemia (CDA), whether a genetic mutation is identified or not
- Evidence of congenital anemia/jaundice or a positive family history
- Evidence of ineffective erythropoiesis
- Typical morphological appearance of bone marrow erythroblasts
- All ages (ages 0-99)
Exclusion criteria
- Diagnosis of cancer
- Myelodysplasia
- Secondary dyserythropoiesis: e.g.; vitamin B12 deficiency or drug-related. Note1: Patients with rare band 3 (SLC4A1) mutations recently described to be associated with dyserythropoiesis will be eligible since the mechanisms appear to involve direct participation of band 3 in the erythroblast mitosis and cytokinesis. Note2: Siblings, parents, and family members of patients with confirmed CDA diagnosis are encouraged to participate in the study.
Where
- Cincinnati, Ohio
Frequently asked questions
What is a clinical trial?
A clinical trial is a research study that tests new medical treatments, drugs, devices, or procedures to determine their safety and effectiveness. Trials are carefully designed and monitored to protect participants while advancing medical knowledge.
Is it safe to participate?
Clinical trials follow strict safety guidelines and ethical standards. Trials must be reviewed and approved, and participants are closely monitored by medical professionals throughout the study. You can withdraw at any time if you choose.
Will I be compensated?
Many clinical trials offer compensation for your time, travel expenses, and inconvenience. The specific compensation varies by study and will be discussed during the screening process. All study-related medical care is typically provided at no cost to participants.
Will I receive a placebo instead of treatment?
When effective treatment exists, participants typically receive either the standard treatment plus the study intervention, or the standard treatment plus placebo. You would not be denied effective care. Placebos are primarily used when no proven treatment is available, or in addition to standard care. Your trial consent form will clearly explain what treatments you may receive.
Can I leave a trial if I change my mind?
Absolutely. Participation in clinical trials is completely voluntary. You have the right to withdraw from the study at any time, for any reason, without penalty or loss of benefits to which you are otherwise entitled.
How long does a clinical trial last?
Trial duration varies widely depending on the study design and purpose. Some trials last just a few weeks, while others may continue for months or years. The study coordinator will provide specific timeline information during your screening call.
Data: ClinicalTrials.gov · synced Jun 16, 2026 · Source of record for eligibility and locations