An observational study in Hemoglobin Disorder, sponsored by St. Jude Children's Research Hospital. Recruiting at 1 site in United States. Per ClinicalTrials.gov, last updated 2026-09-15.
Sponsored by St. Jude Children's Research Hospital · Observational
This is a prospective, longitudinal, non-therapeutic study which includes routine assessment for long-term effects, as per FDA guidelines after receipt of an allogeneic HCT or autologous genetically modified cellular products for hemoglobin disorders.
Primary objective:
- To provide long term follow up, for individuals with hemoglobin disorders undergoing allogeneic hematopoietic stem cell transplantation (HCT) or receipt of an autologous genetically modified cellular product to treat their hemoglobinopathy. For individuals receiving a genetically modified cellular product, this long term follow up study is in accordance with the guidelines provided by the Food and Drug Administration (FDA).
This protocol will provide a mechanism to appropriately monitor individuals with hemoglobin disorders that have received an allogenic HCT or an autologous genetically modified cellular product for hemoglobinopathies. Monitoring will include potential long-term adverse effects after receipt of these treatments, as well as long-term monitoring after the receipt of the genetically modified cellular product.
100 studies on the registry are indexed under Hemoglobinopathies; 29 are open to participants now.
This study's planned enrollment of 200 is below the median of 350 across 29 observational studies indexed under Hemoglobinopathies.
Browse Hemoglobinopathies studies →St. Jude Children's Research Hospital is the lead sponsor of 440 studies on the registry; 102 are open to participants now.
Of its 61 completed or terminated interventional studies of FDA-regulated products, 37 (61%) have results posted.
Counted across the registry records on this site, refreshed daily.
200 patients with hemoglobin disorders that have received, or are planning to receive, either a genetically modified cell product or allogenic HCT will be invited to enroll on this long term follow up study.
Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.
Exclusion Criteria:
Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Stem cell (bone marrow) transplants. Allogeneic uses cells from a donor; autologous uses your own cells, collected earlier and given back.
The protein in red blood cells that carries oxygen. A low level is anaemia, which can cause tiredness and breathlessness. Measured in g/dL or g/L (9 g/dL is 90 g/L).
Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.
You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.
Allogeneic and autologous transplant
Stem cell (bone marrow) transplants. Allogeneic uses cells from a donor; autologous uses your own cells, collected earlier and given back.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Hemoglobin (Hb)
The protein in red blood cells that carries oxygen. A low level is anaemia, which can cause tiredness and breathlessness. Measured in g/dL or g/L (9 g/dL is 90 g/L).
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Informed consent
Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.
You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
To provide ongoing review of long-term clinical and psychosocial outcomes and late effects of hematopoietic stem cell transplant and gene therapy recipients at St. Jude Children's Research Hospital.
Time frame: long term follow up. Can also be stated as "up to 15 years after transplant"
Started Jun 2025 (actual). Primary completion is estimated for Jan 2035, 115 months after the start.
Of 21 observational studies under Hemoglobinopathies, half reached primary completion within 53 months of starting (the median), counting those still running; a quarter within 28 and three quarters within 68. This study's planned 115 months is above that.
How these figures are worked out, and which studies are left out of them.
Eligibility is decided by the study team. Share this record with your doctor or contact the team directly.
Contact study teamGet an email when the registry record changes — status, dates, results — or when someone posts here.
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Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.
St. Jude Children's Research Hospital →