Procedure guide · Haematology and haemato-oncology
An allogeneic bone marrow or stem cell transplant uses blood-forming stem cells from a donor. The US National Cancer Institute explains that the donor’s tissue type (HLA) must closely match yours, and that a brother or sister is most often the closest match. It needs a specialised transplant centre, and a haematologist decides whether it suits you.
What is an allogeneic transplant?
After high-dose chemotherapy, sometimes with radiation, the donor’s stem cells are given through a drip. The NCI notes that donor cells can come from blood, bone marrow or umbilical cord blood. The new cells settle in the marrow and begin making blood.
Donor cells can also act against remaining cancer. The NCI calls this the graft-versus-tumour effect. The same cells can attack the patient’s own tissues, such as skin, liver and intestines. This is graft-versus-host disease (GVHD). Closer HLA matching and medicines that damp down the immune system lower that risk.
Who may be considered for an allogeneic transplant?
The NCI lists leukaemia, lymphoma, multiple myeloma and myelodysplastic syndromes as the most common reasons for stem cell transplants. It also mentions non-cancer uses, such as aplastic anaemia and sickle cell disease. Whether an allogeneic transplant suits you depends on your disease, its stage and response to treatment, your fitness and donor availability. Only a transplant haematologist can decide.
How is a donor found?
The NCI explains that the more HLA markers donor and patient share, the better the chance the body accepts the cells. Siblings are tested first. Ask your doctor at home whether brothers and sisters can have HLA typing before you travel. The NCI notes that a donor may be a relative or an unrelated person who matches. Ask the team which options apply to you and how a family donor would travel with you.
Which reports does a transplant team usually ask for?
- the diagnosis report, including bone marrow, cytogenetic and molecular results
- a full record of treatment so far
- the latest response assessment
- HLA typing for you and any siblings tested
- blood counts and organ function tests
- infection screening results
How do I plan an allogeneic transplant trip?
The NCI says an allogeneic transplant needs a hospital with a specialised transplant centre. It explains that patients may stay in hospital for long periods and those who live far away may need to rent accommodation near the centre. Without complications, it says people can often go home about 100 days after the transplant, with close follow-up still needed. The immune system can take one to two years to recover. Your own team will set your timeline.
Plan for the patient, the donor and an attendant. The donor needs a visa and time for tests and collection. Infection control is strict, so choose clean accommodation close to the hospital. Ask for a long-term plan for anti-rejection medicines, GVHD monitoring and vaccinations at home.
What should I ask the hospital before booking?
- Is an allogeneic transplant recommended now, and why?
- Which donor options do I have if no sibling matches?
- How will my donor be tested and when must they arrive?
- How long should I plan to stay near the centre?
- How will GVHD be monitored once I am home?
- Which medicines will I need long term and are they available in my country?
Who decides
IndiaMedica does not give medical advice. Your oncology team decides on treatment, its schedule, how long you stay and when it is safe to travel.
Questions people ask
What is graft-versus-host disease?
GVHD happens when the donor’s immune cells attack the patient’s own tissues, such as the skin, liver or intestines. The NCI says it can be acute or chronic. Close HLA matching and immune-suppressing medicines lower the risk. Your team monitors you closely for it.
Does my donor need to travel to India?
Ask the hospital where and how a family donor’s cells would be collected. If the donor travels to India, they need a valid visa and time for tests and collection. Ask what documents the hospital requires for a donor before anyone applies for a visa.
Sources
General information, not medical or legal advice. Rules change: confirm with the official source. Your treating specialist decides on suitability, treatment and length of stay. How we write and check.