Senior Consultant, Pediatric Hemato-Oncology and Bone Marrow Transplant, Artemis Hospitals, Gurugram, India
Series overview · 9 articles
Sickle Cell Disease and Bone Marrow Transplant
September 2, 2026
Sickle cell disease is not simply an anemia or an occasional pain crisis. It is a chronic, disabling condition that damages nearly every organ in the body over a patient's lifetime. Dr. Arun Singh Danewa, Senior Consultant, Pediatric Hemato-Oncology and Bone Marrow Transplant at Artemis Hospitals, Gurugram, used his Jivo Masterclass, held during Sickle Cell Awareness Month, to walk referring doctors through the full clinical picture: how the disease develops, why it causes lifelong organ damage, and why bone marrow transplant and gene therapy remain the only two treatments that address the disease itself rather than its symptoms.
The scale of the problem
Among congenital hemoglobin disorders, which are dominated by sickle cell disease and thalassemia, the burden ranks third worldwide after heart disease and neural tube defects. More than three lakh babies are born every year with a hemoglobinopathy. The disease is concentrated on the African continent and in India, though Indian variants tend to run symptomatically milder than the African ones. Nigeria carries the label of the sickle cell capital of the world, a distinction with the same weight as India's status as the thalassemia capital.
What this series covers
This series works through the single gene defect that causes sickling and why it damages organs from the brain to the kidney to the bone, the difference between supportive treatment and curative treatment, how a donor is matched and selected including haploidentical transplant from a parent, what happens to a patient in the weeks before and during transplant, why age changes transplant outcomes, how doctors track whether a transplant is working through chimerism testing, where gene therapy and disease-modifying drugs fit in, and what referring doctors abroad need to know about cost, outcomes, and the genetics that persist even after a successful cure.
This article is based on a Jivo Masterclass session conducted by Dr. Arun Singh Danewa, Senior Consultant, Pediatric Hemato-Oncology and Bone Marrow Transplant, Artemis Hospitals, Gurugram. The article has been summarised with the assistance of an AI tool from the original masterclass recording. Watch the full Masterclass recording
Looking for a sickle cell disease or bone marrow transplant consultation or a second opinion? Get in touch with the Jivo team
This guide is based on a live Jivo Masterclass — Dr. Arun Singh Danewa taught doctors across Africa on September 2, 2026.
Watch the full recording, or read the guide above.
FROM THE LIVE Q&A
Dr. Waiswa Kaziba
Almost 99% of the sickle cell patients I see in clinical practice cannot afford curative treatment options. How can I best improve quality of life for these patients?
Dr. Arun Singh Danewa
Hydroxyurea should be on the medication chart of every single patient, alongside L-glutamine, the two proven disease-modifying drugs. Vaccination against Haemophilus influenzae, pneumococcus, and Neisseria meningitidis should be part of every patient's care given their functional asplenia. Transcranial Doppler is important for any patient with a stroke history, and chronic transfusion therapy should start if the Doppler reading crosses the cutoff. Educating patients about precipitating factors for pain crisis, changes in weather and infection among them, is equally valuable where curative treatment is not accessible.
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Frequently Asked Questions
If disease-modifying drugs continue to improve, will that eventually eliminate the need for bone marrow transplant?▼
No. These drugs do not hit the primary pathology, the sickling process itself. They can reduce pain symptoms and severity, but the silent chronic organ damage keeps progressing underneath. Only bone marrow transplant and gene therapy correct the underlying disease, so a patient who can access and afford curative therapy should pursue it; supportive therapy remains the best option only where curative treatment is out of reach.
Over a lifetime, would supportive therapy end up costing more than a bone marrow transplant?▼
Yes, cumulatively the costs converge. Patients in their mid-thirties frequently say they would accept any transplant risk just to be rid of the disease. Adding up a lifetime of hospitalizations and medications produces a total broadly similar to the cost of transplant, the real difference is timing: transplant requires the full sum upfront in a short window, while supportive care is paid in smaller, less visible installments over decades.
How many times can one person be a bone marrow donor?▼
Usually a maximum of two times in a lifetime, under blood bank regulations in most countries. The minimum gap between two donations should be six months, occasionally reduced to three months in a life-threatening situation, though six months to a year is recommended. Most Indian regulations do not permit bone marrow donation beyond two times.
If two siblings both have sickle cell disease and one sibling is a full-match donor, can that one donor's harvest be used for both patients?▼
Yes, this is done in practice. Since the minimum stem cell dose is 3 million cells per kilogram of the recipient's weight, a larger harvest can be divided into two doses for two patients. Where families want to proceed with one transplant first and the second once funds are arranged, half the dose is used immediately and the rest is cryopreserved for the second transplant later, sometimes with additional stimulating injections used to boost the donor's total yield.
If a patient undergoes a successful bone marrow transplant, grows up, and has children of their own, is the sickle cell inheritance chain broken for the next generation?▼
No. Transplant replaces the blood-forming stem cell system, not the gene itself; the reproductive organs still carry the SS gene. The post-transplant patient will transmit one sickle gene to their offspring, and if their partner is also a carrier, their child can still be born with sickle cell disease. Families need to be counseled that both the patient and their partner should be tested once the child is grown and ready to have children of their own.
Is sickle cell disease just a blood disorder?▼
No. It is a chronic condition that affects nearly every organ, including the brain, lungs, spleen, kidney, bones, eyes, and heart, because sickled red blood cells repeatedly clog blood vessels throughout the body.
What are the only curative treatments for sickle cell disease?▼
Bone marrow transplant and gene therapy are the only two treatments that address the underlying disease process. All other treatments, including hydroxyurea and transfusions, only manage symptoms.
In This Series: Sickle Cell Disease and Bone Marrow Transplant
- 1.Sickle Cell Disease and Bone Marrow Transplant
- 2.Why Sickle Cell Disease Affects Every Organ in the Body
- 3.Supportive Care vs Cure: The Two Tracks of Sickle Cell Treatment
- 4.Finding a Donor: HLA Matching and Haploidentical Transplant in Sickle Cell
- 5.Conditioning and Fertility: What Happens Before a Sickle Cell Transplant
- 6.Stem Cell Collection and the Right Age for Sickle Cell Transplant
- 7.Engraftment and Chimerism: How Doctors Know a Sickle Cell Transplant Is Working
- 8.Gene Therapy and Drug Treatments: The Non-Transplant Options for Sickle Cell
- 9.Cost, Outcomes, and Genetics After a Sickle Cell Cure