# Treatment options for severe beta-thalassaemia
The treatment of severe beta-thalassaemia focuses on supplementing red blood cells, managing complications and – increasingly – on curing the disease itself. The approach varies by stage and depends on how well your body can still produce haemoglobin.
Blood transfusions
ProveniIncluded in official guidelines, or approved by EMA or FDA
Regular blood transfusions have long been the cornerstone of treatment. They add healthy red blood cells and keep the haemoglobin level at a level where your body receives enough oxygen and the most severe growth retardation and bone problems are prevented.
Transfusions are usually given every 2 to 4 weeks, depending on how quickly your body breaks down red cells. During the transfusion, doctors continuously monitor how well you are responding.
The main side effect is iron accumulation: each transfused blood cell contains iron, and your body cannot get rid of excess iron on its own. Too much iron damages the heart, liver and hormone glands (including the pancreas, which can cause diabetes). This happens gradually, over years, and is monitored with regular check-ups.
Another risk is alloimmunisation: sometimes your immune system learns to recognise the transfusion donor as 'foreign' and makes antibodies. This can make transfusions more difficult. There are also rare infection risks, although screened donor blood is very safe.
Iron removal agents (chelators)
ProveniIncluded in official guidelines, or approved by EMA or FDA
Because transfusions bring iron with them, medicines are given that remove iron from your body and eliminate it via urine or faeces. This prevents iron from accumulating in vital organs.
These agents work by 'wrapping up' iron so it can no longer be harmful. They are usually administered daily, depending on which chelator is chosen.
Possible side effects vary depending on the agent and can include gastrointestinal complaints, hearing problems, kidney damage and allergic reactions. Your doctor will regularly check whether your kidneys and hearing are still working properly.
Splenectomy (removal of the spleen)
ProveniIncluded in official guidelines, or approved by EMA or FDA
In about half of patients, the spleen grows abnormally large (splenomegaly). The enlarged spleen destroys red blood cells faster, requiring more transfusions. If drug treatment is not sufficiently helpful, the spleen can be surgically removed.
After that, patients need fewer transfusions, but it does mean your immune system is weakened. Therefore, patients receive vaccinations and certain infections must be prevented; your doctor will discuss this in detail.
Folic acid and B-vitamin supplements
ProveniIncluded in official guidelines, or approved by EMA or FDA
The bodies of thalassaemia patients continuously produce (albeit insufficiently) red blood cells. This consumes a lot of folic acid and B12. Supplementation helps support the remaining own blood cell production.
These are vitamin tablets without significant side effects.
Treatment of complications: cardiac arrhythmias and heart failure
ProveniIncluded in official guidelines, or approved by EMA or FDA
Iron accumulation in the heart can cause cardiac arrhythmias and heart failure. This is treated with standard medications for heart patients (such as ACE inhibitors, beta-blockers and diuretics).
In some cases, further interventions are needed. The doctor and cardiologist decide together what is appropriate.
Treatment of bone damage (osteoporosis)
ProveniIncluded in official guidelines, or approved by EMA or FDA
Thalassaemia patients often have weak bones due to hormone disturbances, iron accumulation, inflammation and reduced growth in childhood. Bone fractures are more common.
Therapy consists of calcium supplements, vitamin D and sometimes bisphosphonates (medications that slow bone loss). Regular physical activity is also important.
Hormone supplementation
ProveniIncluded in official guidelines, or approved by EMA or FDA
Chronic anaemia and iron accumulation damage hormone glands (pituitary gland, thyroid gland, sex hormones). This can cause growth retardation, puberty disorders and menopausal symptoms.
Patients receive regular blood tests to monitor hormone levels. When necessary, hormones are supplemented (for example, growth hormone or thyroid medication).
Eye diseases and treatment
ProveniIncluded in official guidelines, or approved by EMA or FDA
Iron can accumulate in the eye (retina) and damage vision. Regular eye examinations are part of standard care. For retinal degeneration, there are laser treatments and in some cases surgical options, depending on severity.
Gene editing (CRISPR)
ResearchediPositive results in clinical studies, not yet standard treatment
This is a newer field where scientists attempt to correct the fault in your β-globin gene or, where possible, 'activate' other genes that produce compensatory hemoglobin (HbF).
Recent studies and reports from research conferences (ASH 2025) show that gene editing with CRISPR is promising, with cases where patients require significantly fewer transfusions. It is not yet widely available outside research programs, and long-term effects are still being studied.
Eligible patients are usually screened intensively first, and treatment takes place in specialized centers.
Stem cell transplantation (allogeneic)
ProveniIncluded in official guidelines, or approved by EMA or FDA
This is the only recognized cure: healthy stem cells from a donor (usually a brother or sister with a matching genetic profile) replace your own defective stem cells.
The procedure requires chemotherapy or radiation to eliminate your own cells. This is intensive and carries risks (severe infections, rejection, complications from the preparatory treatment itself). The success rate and survival rate depend on the quality of the match, the patient's age, and overall health.
For young children with a perfect match, the chances of success are higher; for older patients or poorer matches, lower. It is reserved for selected candidates.
Mitapivat and pyruvate kinase activators
ResearchediPositive results in clinical studies, not yet standard treatment
These medications improve the functioning of the pyruvate kinase enzyme, making red blood cells more stable and longer-lasting. This can increase hemoglobin levels and reduce transfusion needs.
Various clinical trials are underway to examine effectiveness and safety in different age groups. Preliminary results are positive, but it is not yet available everywhere as standard treatment.
Fetal hemoglobin inducers
ResearchediPositive results in clinical studies, not yet standard treatment
Some medications can stimulate your body to produce more HbF (fetal hemoglobin), which can partially replace the normal, defective hemoglobin in thalassemia patients.
Studies show that certain substances can achieve this, but research is still ongoing into practical application and sustained effectiveness.
Psychosocial support and rehabilitation
ProveniIncluded in official guidelines, or approved by EMA or FDA
Coping with regular transfusions, medications, eye checks, and complications demands a lot. Psychological counseling, peer support groups, and occupational therapy can help with adjustment, stress management, and participation in school and work.
This is not a 'treatment' in the medical sense, but an essential part of living well with thalassemia.
---
_This information never replaces a doctor's judgment. Always discuss your situation with your own healthcare provider._