Stem Cell Transplants

A stem cell transplant (also called a bone marrow transplant) can be a life-saving treatment for many blood cancers.

What is a Stem Cell Transplant?

A stem cell transplant replaces your diseased bone marrow with healthy blood-forming stem cells. This gives you a new, healthy immune system capable of fighting your cancer.

Types of Transplants

Allogeneic Transplant

Stem cells come from a donor—either a family member or unrelated matched donor.

The donor's immune system can help fight remaining cancer cells (graft-versus-leukemia effect).

Autologous Transplant

Uses your own stem cells, collected and stored before high-dose chemotherapy.

More common for lymphoma and myeloma than for leukemia.

The Transplant Process

Phase 1: Conditioning

Conditioning is the period of high-dose chemotherapy and/or radiation therapy delivered in the week before transplant. It destroys remaining cancer cells and suppresses your immune system to make room for the new stem cells.

Common Regimens

• Chemo: Common drugs include Busulfan, Fludarabine, Cyclophosphamide, or Melphalan.
• TBI: Total Body Irradiation may be used to help clear the marrow.

Phase 2: Transplant Day (Day 0)

The transplant itself is similar to a blood transfusion. Healthy stem cells are infused through your central line and naturally "home" to your bone marrow to begin their work.

Phase 3: The Nadir (White Count Zero)

In the days following transplant, your blood counts will drop to zero (the nadir). During this 1-2 week period, you have no immune system and require intensive support.

🛡️ Isolation: Strict precautions to prevent infection while neutropenic.
🩸 Transfusions: Frequent red cell and platelet support.

Phase 4: Engraftment

Usually 14-21 days after transplant, the new cells begin to function. Your white blood cell count (ANC) will begin to rise, followed by platelets and red cells. This marks the start of your new immune system.

Finding a Donor

If you need an allogeneic transplant, your medical team will search for a matching donor. Options include:

Siblings (about 25-30% chance of a match)
Parents or children (haploidentical, or half-matched)
Unrelated donors through registries like Be The Match
Umbilical cord blood

Preparing for Transplant

Before your transplant, you'll go through an extensive workup to ensure you're ready. This typically includes:

📋Medical evaluation: Heart, lung, liver, and kidney function tests
🦷Dental clearance: Treating infections before immunosuppression
💉Central line placement: A catheter for medications and blood draws
🏠Caregiver planning: Arranging 24/7 support for the first 100 days
📚Education sessions: Learning about what to expect and how to care for yourself

Side Effects & Complications

Transplant is a major procedure that affects many systems in your body. Your care team will monitor you closely for these common issues:

👅 Mucositis

Painful inflammation and sores in the mouth and digestive tract caused by conditioning regimens. Often requires specialized oral care and pain management.

🦠 Infection Risks

Because your new immune system is "new," you are at risk for viral, bacterial, and fungal infections, including CMV or EBV reactivation.

Understanding GVHD

Graft-versus-Host Disease (GVHD) occurs when the donor's immune cells recognize your body as "foreign" and attack it.

Acute GVHD

Occurs within the first 100 days. May affect skin (rash), gut (diarrhea), and liver.

Treated with steroids and other immunosuppressive medications.

Chronic GVHD

Develops after 100 days. Can affect skin, eyes, mouth, joints, and other organs.

May require long-term management but often improves over time.

💡 The Graft-versus-Leukemia Effect

While GVHD is a challenge, a small amount of it is actually beneficial—it's a sign that the donor immune cells are active and can help prevent cancer relapse by attacking any leftover leukemia cells.

Life After Transplant

Recovery from a stem cell transplant is a marathon, not a sprint. Here's what to expect:

First 100 Days

High infection risk, frequent clinic visits, dietary restrictions, close monitoring for GVHD.

3-12 Months

Gradual immune recovery, possible tapering of immunosuppression, energy slowly returning.

1-2 Years and Beyond

Re-vaccination, return to many normal activities, ongoing monitoring, potential long-term effects management.

🌟 Survivorship Resources

Many transplant centers have survivorship programs to help with the physical, emotional, and practical challenges of life after transplant. Ask your team about available resources.

📚 Learn More

Blood Cancer United provides comprehensive information about stem cell transplantation.

Stem Cell Transplantation at Blood Cancer United