Table 3.

Secondary agents (updated from Lee et al33).

AgentPublished overall response ratesOrgan specific response rates (CR+PR)Hypothesized mechanism of actionSide effectsSurvivalAdult use, %*Pediatric use, %*
* Percentages of adult and pediatric use from survey of 526 transplant physicians asked to choose an agent to treat steroid-refractory chronic GVHD.20  
Common agents 
Mycophenolate mofetil34 36 (Cellcept) 46–75% response rate (N = 21–26) Skin (53%, n = 15), mouth (67%, n = 15), liver (54%, n = 13) Prodrug of mycophenolic acid interferes with purine synthesis in lymphocytes Nausea, vomiting, diarrhea, abdominal cramps, neutropenia 85% survival at 2 years 52 50 
High-dose corticosteroids37  48% major response rate (N = 56)  Lympholytic at a dose of 10 mg/kg/d for 4 days Infection, glucose intolerance, psychological effects including psychosis, insomnia 88% survival at 1 year 16 
Extracorporeal 38,39 photopheresis 61% response rate (N = 71) Skin (40%, n = 48),40 sclerotic skin (67%, n = 21), mouth (77%, n = 7), eye (67%, n = 4) and lung (54%, n = 6). Induces apoptosis in 5–10% T cells, increases regulatory T cells Anemia, potential need for central IV access 53% survival at 1 year 10 
Sirolimus/rapamycin41,42 (Rapamune) 63–94% clinical response (n = 16–35) Skin (65%, n = 29), mouth (75%, n = 8), liver (33%, n = 6), eye (64%, n = 11), GI (67%, n = 6) Binds to FKBP-12 and mTOR (mammalian target of rapamycin) to inhibit cytokine-driven T cell proliferation Hypertriglyceridemia, renal insufficiency, cytopenias, infection 41% survival at 2 years; 89% survival at 3 years 
2-deoxycoformycin43 (Pentostatin) 53% major response rates, 2% minor response (N = 58) Lichenoid skin (69%, n = 39), sclerotic skin, fascial, mouth (52–57%, n = 39) Nucleoside analog that inhibits adenosine deaminase (ADA) Nausea, vomiting, infection, renal dysfunction, rash, headache 78% survival at 1 year 
Tacrolimus (Prograf)44,45  35% response rate (N = 39)  Binds to FKBP-12 (FK binding protein) and inhibits T lymphocyte activation, concentrates in liver Renal dysfunction, thrombotic microangiopathy, neurotoxicity, hypertension Survival not reported 12 
Less common agents 
Rituximab (Rituxan)46,47  65–70% response rate (N = 21–38) Skin (63%, n = 28), mouth (48%, n = 21), eyes (43%, n = 14), liver (25%, n = 12), lung (38%, n = 8) Chimeric anti-CD20 monoclonal antibody Allergic reactions, infections, hepatitis reactivation 76% survival at 2 years 
Thalidomide48 50  20–38% response rate (N = 23–80) Skin (46%, n = 30), mouth (22%, n = 14); joint (78%, n = 14), lung (0%, n = 6) Anti-inflammatory and immunosuppressive properties Neuropathy, somnolence, constipation, neutropenia 41% survival at 2 years 
AgentPublished overall response ratesOrgan specific response rates (CR+PR)Hypothesized mechanism of actionSide effectsSurvivalAdult use, %*Pediatric use, %*
* Percentages of adult and pediatric use from survey of 526 transplant physicians asked to choose an agent to treat steroid-refractory chronic GVHD.20  
Common agents 
Mycophenolate mofetil34 36 (Cellcept) 46–75% response rate (N = 21–26) Skin (53%, n = 15), mouth (67%, n = 15), liver (54%, n = 13) Prodrug of mycophenolic acid interferes with purine synthesis in lymphocytes Nausea, vomiting, diarrhea, abdominal cramps, neutropenia 85% survival at 2 years 52 50 
High-dose corticosteroids37  48% major response rate (N = 56)  Lympholytic at a dose of 10 mg/kg/d for 4 days Infection, glucose intolerance, psychological effects including psychosis, insomnia 88% survival at 1 year 16 
Extracorporeal 38,39 photopheresis 61% response rate (N = 71) Skin (40%, n = 48),40 sclerotic skin (67%, n = 21), mouth (77%, n = 7), eye (67%, n = 4) and lung (54%, n = 6). Induces apoptosis in 5–10% T cells, increases regulatory T cells Anemia, potential need for central IV access 53% survival at 1 year 10 
Sirolimus/rapamycin41,42 (Rapamune) 63–94% clinical response (n = 16–35) Skin (65%, n = 29), mouth (75%, n = 8), liver (33%, n = 6), eye (64%, n = 11), GI (67%, n = 6) Binds to FKBP-12 and mTOR (mammalian target of rapamycin) to inhibit cytokine-driven T cell proliferation Hypertriglyceridemia, renal insufficiency, cytopenias, infection 41% survival at 2 years; 89% survival at 3 years 
2-deoxycoformycin43 (Pentostatin) 53% major response rates, 2% minor response (N = 58) Lichenoid skin (69%, n = 39), sclerotic skin, fascial, mouth (52–57%, n = 39) Nucleoside analog that inhibits adenosine deaminase (ADA) Nausea, vomiting, infection, renal dysfunction, rash, headache 78% survival at 1 year 
Tacrolimus (Prograf)44,45  35% response rate (N = 39)  Binds to FKBP-12 (FK binding protein) and inhibits T lymphocyte activation, concentrates in liver Renal dysfunction, thrombotic microangiopathy, neurotoxicity, hypertension Survival not reported 12 
Less common agents 
Rituximab (Rituxan)46,47  65–70% response rate (N = 21–38) Skin (63%, n = 28), mouth (48%, n = 21), eyes (43%, n = 14), liver (25%, n = 12), lung (38%, n = 8) Chimeric anti-CD20 monoclonal antibody Allergic reactions, infections, hepatitis reactivation 76% survival at 2 years 
Thalidomide48 50  20–38% response rate (N = 23–80) Skin (46%, n = 30), mouth (22%, n = 14); joint (78%, n = 14), lung (0%, n = 6) Anti-inflammatory and immunosuppressive properties Neuropathy, somnolence, constipation, neutropenia 41% survival at 2 years