A Prospective Study of G-CSF Primed Bone Marrow from Pediatric Donors as a Stem Cell Source for Allogeneic Bone Marrow Transplant: A Pediatric Blood and Marrow Transplant Consortium (PBMTC) Study.

Blood ◽  
2005 ◽  
Vol 106 (11) ◽  
pp. 1964-1964 ◽  
Author(s):  
Haydar Frangoul ◽  
Ann Woolfrey ◽  
Shakila Khan ◽  
Michael Pulsipher ◽  
John Levine ◽  
...  
Keyword(s):  
Bone Marrow ◽  
High Risk ◽  
Chronic Gvhd ◽  
Marrow Transplant ◽  
Allogeneic Bone ◽  
Post Transplant ◽  
Cell Dose ◽  
Pediatric Donors ◽  
Standard Risk

Abstract Higher bone marrow cell dose has been associated with improved survival after allogeneic BMT. Although PBSC provides higher cell dose, it also provides a higher number of T cells which increases the risk of GVHD and may negatively impact the outcome in pediatric patients. A prospective multi-center trial was conducted to evaluate the safety and feasibility of G-CSF primed bone marrow in children receiving HLA-identical sibling bone marrow transplantation (BMT). Thirty eight children at 9 different centers, 17 female and 21 male with a median age of 9.8 years (range 0.8–17) were enrolled between May 2003 and May 2005. Fifteen patients had high risk diseases (ALL ≥CR2=4, AML≥ CR2/refractory=5, Advanced MDS=3, JMML=1, NHL=2) and 23 had standard risk disease (SAA=6, Red Cell Aplasia=1, Sickle cell disease=1, CML-CP=2, AML CR1=9, ALL CR1=2, MDS-RA=2). Five patients had undergone a prior allogeneic transplant. All patients received myeloablative preparative regimens (Cy/TBI±VP-16=12, BU/Cy±other=20 and Cy/ATG=6) and 32 (84%) received CSP/FK506 with MTX as GVHD prophylaxis. Donors were HLA identical siblings except for one who was syngeneic. Donors with median age of 9.2 y (range 1.1–22) received 5 mcg/kg/day of GCSF SQ for 5 consecutive days. Bone marrow was collected on the fifth day with a median volume of 14.5 cc/kg (range 5.2–25). No donor experienced any complications related to G-CSF administration or harvest, up to the time of last follow-up at one month after the harvest. The absolute CD34 cell count at the day of the harvest was measured in 28 patients and it was significantly higher in bone marrow compared to peripheral blood, median of 50/μl (8–247) vs 513/μl (116–156) respectively (p <0.0001). Median nucleated and CD 34 cells infused was 8.4x108/kg (range 2.4–60.9) and 8.7x106/kg (range 2–27.6) respectively. No G-CSF was administered post transplant. All patients had neutrophil engraftment at a median of 19 days (13–28), and all but one patient with early post-transplant relapse had platelet engraftment at a median of 20 days (9–44). Thirteen patients (35%) developed grade 2 GVHD and 4 of 34 evaluable patients (12%) developed chronic GVHD (3 limited and 1 extensive). There was no transplant related mortality. Among 30 patients with malignant disorders 9 (30%) relapsed (6 with high risk and 3 with standard risk disease). The EFS and OS of patients with standard disease at 1 year is 84% (95% CI 68–100%) and 95% (95% CI 87–100) respectively. With a median follow up of 1 year the estimated EFS and OS of all patients at one year is 76% (CI 62–93) and 92% (95% CI 83–100) respectively. We conclude that G-CSF primed bone marrow from pediatric donors is safe and can result in high NC and CD34 cell dose that facilitate engraftment after myeloablative BMT without a discernable increase in the risk of GVHD. A prospective randomized trial comparing G-CSF primed bone marrow to unstimulated marrow is planned.

scholarly journals Graves’ Disease After Hematopoietic Allogeneic Bone Marrow Transplant in a Patient With Sickle Cell Disease

2021 ◽  
Vol 5 (Supplement_1) ◽  
pp. A930-A931
Author(s):  
Majid Alameri
Keyword(s):  
Bone Marrow ◽  
Sickle Cell Disease ◽  
Sickle Cell ◽  
Marrow Transplant ◽  
Graves Disease ◽  
Allogeneic Bone ◽  
Cell Disease ◽  
Free T4 ◽  
Post Transplant

Abstract Endocrinopathies are among the most recognized late complications post hematopoietic stem cell transplant (HSCT). Dysfunctions of hormonal axes including the hypothalamus, pituitary, gonads, thyroid and adrenals reported. Moreover, thyroid dysfunctions including thyroiditis, hypothyroidism and hyperthyroidism has been reported to develop 8-32 months after HSCT. We report a 27-year-old male with sickle cell disease diagnosed at age of 5. He had multiple painful vasoocclusive sickle crises treated with blood transfusions, folic acid and rituximab. At age of 21, he presented with sudden right sided weakness and slurred speech. Further investigations, including magnetic resonance imaging of brain revealed occlusion of the left middle cerebral artery resulting in ischemic infarction. Subsequently, he had multiple red blood cell exchange transfusions on regular basis. He remained with residual weakness and slurred speech after rehabilitation. Bone marrow transplant was recommended as a curative treatment for his sickle cell disease by haematology team. A year later, he underwent a geno-identical allogeneic bone marrow transplantation harvested from his brother. He remained well for 22 months post-transplant without any evidence of graft versus host disease. 23 months post-transplant, he presented with loose motions, 2 kg wight loss and fine tremors. He was referred to endocrine department for further workup. Physical examination revealed a small smooth goitre. He had discrete exophthalmos of his left eye without any signs of active inflammation. Thyroid function tests confirmed diagnosis of Graves’ disease with TSH&lt;0.01 milli IU/L, Free T4=23.9 pmol/L, and TSH receptor antibodies of 3.79 IU/ml. Ophthalmological consultation suggested 6 months of selenium supplementation (200 mcg/day) with regular follow up. There has been no family history of autoimmune diseases or thyroid disorders. He started carbimazole (CMZ) 30 mg daily. His symptoms improved within 8 weeks, with normalization of Free T4 and Free T3 (TSH remained suppressed). 18 months later, he remained asymptomatic on carbimazole. He had recurrence of hyperthyroidism symptoms after 4 weeks trail of stopping carbimazole with elevation of Free T4 and Free T3. Carbimazole was restarted and he has been offered other treatment modalities of Graves’ disease. He elected to undergo total thyroidectomy. His sickle cell and blood counts remained stable during follow up period. Conclusion: Transplanted patients carries a life-long risk for developing endocrinopathies post initial transplant therapy. Acknowledging the wide spectrum of post-transplant endocrinopathies, an individualized case based periodic screening can be helpful to improve health outcomes of such patients. Because of the usual late presentation of such endocrine complications, transplanted patients might need life-long endocrine follow-up.

Regimen-related toxicity of a busulfan-cyclophosphamide conditioning regimen in 70 patients undergoing allogeneic bone marrow transplantation.

1991 ◽  
Vol 9 (7) ◽  
pp. 1224-1232 ◽  
Author(s):  
T J Nevill ◽  
M J Barnett ◽  
H G Klingemann ◽  
D E Reece ◽  
J D Shepherd ◽  
...  
Keyword(s):  
Bone Marrow ◽  
Bone Marrow Transplantation ◽  
High Risk ◽  
Marrow Transplantation ◽  
Acute Gvhd ◽  
Allogeneic Bone Marrow Transplantation ◽  
Conditioning Regimen ◽  
Allogeneic Bone ◽  
Risk Patients ◽  
Standard Risk

The regimen-related toxicity (RRT) of a busulfan (16 mg/kg) and cyclophosphamide (120 mg/kg) conditioning regimen (BuCy) was evaluated in 70 consecutive patients undergoing allogeneic bone marrow transplantation for hematologic malignancies. Patients were given toxicity gradings retrospectively in each of eight organ systems (cardiac, bladder, renal, pulmonary, hepatic, CNS, stomatic, and gastrointestinal) according to a recently developed RRT scale. A set of patient, disease, and treatment parameters (age, sex, diagnosis, Eastern Cooperative Oncology Group [ECOG] score, preconditioning liver function tests [LFT], prior chemotherapy exposure, disease status, graft-versus-host disease [GVHD] prophylaxis, antimicrobial agent use, hematologic recovery, and severity of acute GVHD) was statistically analyzed to determine significant predictors of RRT. The most common significant organ toxicities were stomatic (87% of patients; 63% grades II to IV) and hepatic (83% of patients; 44% grades II to IV). Renal and gastrointestinal toxicities were not uncommon (35% and 27%, respectively) but were rarely serious (9% and 1% grades II to IV, respectively). Twelve patients developed grade III toxicities of the following systems: hepatic (seven), pulmonary (two), bladder (two), and CNS (one). Females had more frequent stomatitis (P = .04) and hepatic RRT (P = .004). Patients receiving methotrexate in their GVHD prophylactic regimen experienced more grade II to IV stomatitis (P = .04) and hepatic RRT (P = .04). The use of amphotericin B (P = .01) or prolonged antibiotic courses (P = .04) was associated with more grades II to IV hepatic RRT. In a multivariate analysis, only amphotericin B administration predicted grades II to IV hepatic RRT (P = .01). The incidence of acute GVHD was 49%, with 31% having grades II to IV GVHD. The estimated 2-year event-free survival (EFS) for the entire study group was 44%. The estimated 2-year EFS was 63% for standard-risk patients (acute leukemia in first remission and chronic myelogenous leukemia [CML] in first stable phase) and 24% for all others (high-risk patients). High-risk patients were at increased risk of disease recurrence and RRT. BuCy is an efficacious bone marrow transplant conditioning regimen for standard-risk patients with leukemia but has significant associated hepatic RRT.

scholarly journals Unrelated bone marrow donor transplants for children with leukemia or myelodysplasia

Blood ◽  
1995 ◽  
Vol 85 (9) ◽  
pp. 2354-2363 ◽  
Author(s):  
J Casper ◽  
B Camitta ◽  
R Truitt ◽  
LA Baxter-Lowe ◽  
N Bunin ◽  
...  
Keyword(s):  
Bone Marrow ◽  
High Risk ◽  
Myeloid Leukemia ◽  
Chronic Gvhd ◽  
Allogeneic Bone Marrow Transplantation ◽  
Myelogenous Leukemia ◽  
Unrelated Donor ◽  
Allogeneic Bone ◽  
Significant Difference ◽  
Matched Sibling

Allogeneic bone marrow transplantation is the treatment of choice for many childhood leukemias. The donor of choice-an HLA matched sibling-is only available about 30% of the time. Unrelated donors are an alternative choice. In this report, we describe the results of unrelated donor bone marrow transplants (BMT) in 50 children with leukemia (25 acute lymphoblastic leukemia [ALL], 3 acute myeloid leukemia [AML], 3 juvenile chronic myelogenous leukemia [JCML], 10 chronic myeloid leukemia [CML]) or myelodysplastic syndrome (MDS; 9). The median age of the 31 male and 19 female patients was 9 years (range 2 to 18). Only 13 patients were serologically matched at HLA-A, B, DR, and DQ with their donors; 6 of these were reactive in mixed lymphocyte culture. The other 37 patients were mismatched for one (36 patients) or more (1 patient) HLA antigens. Pretransplant conditioning included cytosine arabinoside, cyclophosphamide, fractionated total body irradiation (TBI) (with lung, liver, and more recently, kidney shielding), and methylprednisolone. High-risk patients also received busulfan. Graft-versus-host disease (GVHD) prophylaxis consisted of T- cell depletion with IgM monoclonal antibody T10B9 plus complement and posttransplant cyclosporine-A. Forty-nine patients (98%) engrafted. Median times to greater than 500 polymorphonuclear leukocytes (PMN)/microL and greater than 25,000 platelets/microL were 18 and 20 days, respectively. Acute GVHD > or = grade II occurred in 16 patients (33%); 13 (81%) of these died. Chronic GVHD developed in 30 of 40 patients at risk, but was extensive in only 5. Event-free survival (EFS) for all patients was 44% +/- 7% (median follow-up was 49 months), and overall survival was 50 +/- 7%. Patients with low-risk disease (ALL or AML in first or second remission and CML in chronic phase) had a better EFS than children with high-risk disease (60% v 34%, P = .07). There was no significant difference in EFS between patients who were serologically matched with their donors (46%) and those who were partially mismatched (43%) (P = .97). These data compare favorably with published reports for children transplanted with HLA-matched sibling donors and should encourage earlier consideration of unrelated donor BMT in children with leukemia or myelodysplasia.

EXTENDED FOLLOW-UP IN 212 LONG-TERM ALLOGENEIC BONE MARROW TRANSPLANT SURVIVORS ISSUES OF QUALITY OF LIFE

1993 ◽  
Vol 55 (3) ◽  
pp. 551-556 ◽  
Author(s):  
GERHARD M. SCHMIDT ◽  
JOYCE C. NILAND ◽  
STEPHEN J. FORMAN ◽  
FILAR P. FONBUENA ◽  
ANDREW C. DAGIS ◽  
...  
Keyword(s):  
Quality Of Life ◽  
Bone Marrow ◽  
Bone Marrow Transplant ◽  
Marrow Transplant ◽  
Allogeneic Bone Marrow ◽  
Allogeneic Bone ◽  
Allogeneic Bone Marrow Transplant

Outpatient Haploidentical Peripheral Blood Stem-Cell Transplantation with Post-Transplant Cyclophosphamide in Children and Adolescents

Blood ◽  
2015 ◽  
Vol 126 (23) ◽  
pp. 4389-4389
Author(s):  
Oscar Gonzalez-Llano ◽  
Elias Eugenio Gonzalez-Lopez ◽  
Ana Carolina Ramirez-Cazares ◽  
Edson Rene Marcos-Ramirez ◽  
Guillermo J. Ruiz-Arguelles ◽  
...  
Keyword(s):  
Stem Cell ◽  
T Cell ◽  
High Risk ◽  
Children And Adolescents ◽  
Hematological Malignancies ◽  
Acute Gvhd ◽  
Chronic Gvhd ◽  
High Dose ◽  
Post Transplant

Abstract Patients with high-risk hematological malignancies have a poor prognosis without a hematopoietic stem cell transplant. An HLA- haploidentical donor is available in 95% of the cases, and post-transplant cyclophosphamide permits the use of T-cell replete grafts in settings were ex-vivo manipulation is not available. The experience with HLA-haploidentical HSCT with PBSC and post-tranplant Cy in the pediatric and adolescent population is limited; we report the following experience. We retrospectively collected data on 25 patients (0 to 21 years old) with hematological malignancies, who underwent ambulatory haploidentical HSCT with post-transplant Cy from November 2011 to November 2014. The different conditioning regimens are described in Table 1. All patients received high-dose Cy(50mg/kg) on days +3 and +4. Cyclosporine A (CYA; 6mg/kg/d per os) and mycophenolate mofetil (MMF; 15mg/kg two times daily per os) were started on day +5. MMF was discontinued on day +35 and tapering of cyclosporin started day +90 in the absence of GVHD. All patients received anti-microbial prophylaxis for bacteria, fungal, herpes infection and Pneumocystis jiroveci according to institutional practices. First chimerism was performed at day +30, and second chimerism at day +100. Primary graft failure was defined when neutrophil counts did not exceed 0.5 x 109/L by day +30. Acute and chronic GVHD were graded according to NIH criteria. Patient, donor and stem-cell harvest characteristics are described in Table 1. All patients had high risk hematological malignancies. There were 5 patients who underwent their first transplant on 1st CR, 4 with ALL with high risk cytogenetics and 1 with AML. All other patients were defined as high risk because they were refractory/relapsed. Twenty-three patients (92%) had neutrophil engraftment after a median 17 (7-24) days. Platelet engraftment was observed in 20 (80%) patients after a median of 14.5 (11-23) days, 3 (12%) patients did not have platelet counts below 20,000/mcL. One patient was catalogued as a primary failure for not achieving neutrophil and platelet engraftment by day +30. One patient died before engraftment at day +10 of septic shock. Four patients (16%) died before day +30. The only patient that did not have a complete chimerism, had a diagnosis of AML and 30% of donor cells by day +30, by day +45 relapse of disease was documented. After a median follow-up of 157 days, 13 patients (52%) remain alive, with an estimated 1-year OS of 52% (95%CI: 30.4 - 65.6%).Nine patients (36%) died of complications (mainly infectious) not related to relapse at a median time of 66 days (10-579 days) from stem cell infusion. Nine patients (36%) relapsed in a median time of 105 days (45-288 days); three of those patients died at days +150, +113 and + 370 from transplant. Estimated 1 year event-free survival is 40.2% (95%CI: 41.3 - 75.8%) (Figures 1 and 2). Patients transplanted on 1st CR had a median follow-up of 664 days with an OS and EFS of 80% (4 patients), which was statistically different from the rest of the population (p=0.03) (Figure 3). Among those who engrafted (n=21), 9 cases (42.9%) had grade 2-4 acute GVHD and 4 cases (19%) of grade 3-4 acute GVHD. Three patients (14.3%) developed chronic GVHD, two had mild skin or liver cGVHD. One patient had severe (NIH stage 3) skin cGVHD, she was alive and with a grade 2 cGVHD until last follow up at day +893. Outpatient procedure, HLA-haploidentical HSCT including PBSC as a stem cell source, and post-transplant T-cell in vivo depletion using high-dose cyclophosphamide is feasible in children and adolescents, with acceptable rates of response and GVHD. Table 1. Patient, donor and harvest characteristics Variable N=25 Age, median(range in years) 10 (1-21) Gender, n(%) Male Female 17 (68%) 8 (32%) Diagnosis, n(%) ALL-B ALL-T AML CML 16 (64%) 2 (8%) 5 (20%) 2 (8%) Time from diagnosis to transplant (months) 17.2 (1.9-153.5) Conditioning regimen, n(%) Cy 1500mg/m2 + Flu 75mg/m2 + Bu 9.6mg/kg (IV) Cy 1050mg/m2 + Flu 75mg/m2 + Bu 12 mg/kg (oral) Cy/VP-16/RT Cy/Flu/Mel 16 (64%) 6 (24%) 2 (8%) 1 (4%) Donor, n(%) Mother Father Sister 20 (80%) 3 (12%) 2 (8%) Donor age, median(range in years) 38 (17-49) Infused CD34+ x 106/kg, median(range) 11 (3.2-20) Disclosures No relevant conflicts of interest to declare.

Long-Term Outcomes after Myeloablative Allogeneic Hematopoietic Cell Transplantation for Adult Acute Lymphoblastic Leukemia

Blood ◽  
2015 ◽  
Vol 126 (23) ◽  
pp. 5534-5534
Author(s):  
Moaath Mustafa Ali ◽  
Donna M Abounader ◽  
Lisa A. Rybicki ◽  
Jamie Starn ◽  
Christina Ferraro ◽  
...  
Keyword(s):  
Acute Lymphoblastic Leukemia ◽  
High Risk ◽  
Cell Transplantation ◽  
Hematopoietic Cell Transplantation ◽  
Lymphoblastic Leukemia ◽  
Chronic Gvhd ◽  
Long Term Outcomes ◽  
Post Transplant

Abstract Allogeneic hematopoietic cell transplantation (alloHCT) is a curative therapy for high-risk acute lymphoblastic leukemia (ALL). However, long-term outcomes after alloHCT for adult ALL have not been well described. We conducted a retrospective cohort study of 72 consecutive adult ALL patients who underwent a first myeloablative alloHCT at our institution from January 2000-December 2013. Median age at HCT was 38 yrs (range, 18-62), 40 (56%) were male, 18 (38%) had high HCT CI score, 14 (19%) had prior CNS leukemia and 35 (49%) had BCR-ABL+ disease. Donor source was HLA-matched related donor for 50% patients and 90% received PBSC as graft source. All patients were transplanted in CR (72% were in 1st or 2nd CR) and 92% received T-cell replete grafts. Median time from diagnosis to alloHCT was 5 months (range, 2-90). The incidences of grade II-IV and III-IV acute GvHD, chronic GvHD and extensive chronic GvHD were 43%, 13%, 51% and 36%, respectively. The median follow-up for our cohort is 76 months. At 6 years after HCT, probability of overall survival (OS) was 33% (95% CI, 21-44%) and relapse-free survival (RFS) was 30% (95% CI, 19-42%), and the cumulative incidence of relapse was 36% (95% CI, 25-48%) and non-relapse mortality (NRM) was 37% (95% CI, 26-49%). The most common causes of death were relapse (43%) and infection (21%); majority of relapses occurred within the first 2-years post-transplantation. There were no second cancer related deaths. In multivariable analyses, factors significantly associated with OS were HCT CI score (HR 2.69 for high vs. low/int., P=0.002) and CMV status (HR 2.62 for donor+ vs. others, P=0.05). HCT CI score was the only predictive factor for RFS (HR 2.26 for high, P=0.007). We also compared outcomes by BCR-ABL status. BCR-ABL+ patients were older (median age 42 vs. 36 yrs, p=0.02), had low HCT CI score (34% vs 22%, p=0.01), were more likely to be in CR1 (74% vs. 32%, p=0.002), and as a result, proceeded to HCT sooner after diagnosis (median 4 vs 7 months, p=<0.001). For BCR-ABL+ and BCR-ABL- patients, 6 year OS was 41% and 25%, RFS was 40% and 21%, relapse was 27% and 45% and NRM was 38% and 36% (P=NS for all comparisons). Myeloablative alloHCT can provide long-term survival for selected high-risk adult ALL patients. Relapses are relatively uncommon after 2 years post-transplant. Long-term NRM is high in this population and we did not observe a plateau in its incidence until 7.5 years post-transplant, suggesting the need for long-term follow up to prevent and manage late complications of alloHCT. Figure 1. Figure 1. Disclosures Majhail: Gamida Cell Ltd.: Consultancy; Anthem Inc.: Consultancy.

EBV Related Lymphoproliferative Disorders Post Allogeneic Bone Marrow Transplantation for Haematological Malignancies

Blood ◽  
2015 ◽  
Vol 126 (23) ◽  
pp. 5480-5480
Author(s):  
A. Paisiou ◽  
C. M. Vadikolia ◽  
K. Stefanaki ◽  
E. Goussetis ◽  
I. Peristeri ◽  
...  
Keyword(s):  
Risk Factors ◽  
Bone Marrow ◽  
Allogeneic Bone Marrow Transplantation ◽  
Unrelated Donor ◽  
Allogeneic Bone ◽  
Haematological Malignancies ◽  
Hla Antigen ◽  
Post Transplant ◽  
Concurrent Infections

Abstract Background: Post transplant lymphoproliferative disorder (PTLD) is a heterogeneous complication of HSCT. It comprises a spectrum of pathogenetic mechanisms and clinical manifestations. It is mostly associated with EBV infection, either as a consequence of reactivation in the post transplant period or less frequently from primary infection. WHO classification defines four major histopathologic subtypes: 1. early plasmacytic hyperplasia and infectious mononucleosis (IM)-like 2. polymorphic lesions which may be polyclonal or focally monoclonal (P-PTLD) 3. monomorphic lesions that fulfill criteria for aggressive B- or T/NL-cell neoplasm (M-PTLD) 4. classic Hodgkin-type Lymphomas (CHL-PTLD). Indistinguishable categories, such as Hodgkin-like P-or M-PTLD might represent laborious diagnostic dilemmas. In literature, PTLD occurs in less than 1% of non T-cell-depleted grafts from matched siblings compared with as high as 25% in unrelated donor (VUD) recipients. There are several risk factors such as the type of conditioning and the use of ATG, the degree of immunosuppression and complications such as concurrent infections and GvHD. Objectives: To present our experience regarding the frequency, presentation and outcome of EBV related PTLD in a paediatric population of allo-HSCT recipients with haematological malignancies, to assess the risk factors and inquire into the heterogeneity in clinical presentation and outcome. Patients-Methods: From January 2004 until December 2014, 177 allo-HSCTs for myeloid and lymphoid malignancies were performed in patients aged 3 months to 19 years. PTLD was recorded in 15 (8 male) with median age of 13.24 yrs (range 5.0-17.9yrs). 11 patients had VUD, 4 patients had an haploidentical related donor and the grafts depleted of T-cells. 12 patients had peripheral blood and 3 had bone marrow as the source of HSCs. 4 were given a fully matched graft, 6 had 1 HLA antigen or allele mismatched donors, 1 patient had a 2 HLA antigen mismatched donor and 4 had 5/10 HLA matched haploidentical donors. All except for 2 patients were EBV IgG positive and the two seronegative patients had an EBV IgG positive donor. The conditioning regimens used were Busulfan or Treosulfan based in 11 patients with the addition of a combination of Cyclophosphamide, Fludarabine, Melphalan, VP16 and ATG. The latter was administered to all patients. GvHD prophylaxis consisted of Cyclosporin A and Methotrexate. Five patients (1 male) are alive and well with a median follow up of 43.1 months (range 8.3-69.2). Results: Neutrophil and platelet engraftment occurred at a median of 20 (range 14-24) and 21 days (range 14-48) respectively. Acute GvHD (stage II-IV) was recorded in 9 patients. Serial quantitative EBV-DNA/ml was employed routinely and the median day of confirmation of a rising level above 1.0x103/ml was day +58 post transplant. Median EBV copies at diagnosis were 2.3x104/ml(range 1.3x103/ml-2.15x105/ml). EBV positivity was immediately recorded post DLI in 3 patients and reactivation occurred post subsequent DLI. Immune reconstitution had not been achieved in any patient at the time of diagnosis. Median WBC count was 4.1x109/lt (1.04X109/lt - 8.78x109/lt) and all patients had absolute lymphopenia. 9 patients had documented other viral and/or bacterial infections. 2 patients developed M-PTLD, consistent unequivocally with DLBCL, 7 patients had P-PTLD and 6 patients had IM-like PTLD with plasmacytic hyperplasia only. All had anti-CD20, two patients had additional chemotherapy. Although responsive to EBV treatment, 3 died of primary disease recurrence while PTLD failed to regress in 7 patients who died of a multitude of complications. With a median follow up of 43,1 months (range 8.3-69.2), 5 patients (1 male) are alive and well. Conclusions: Nearly all HSCT recipients are EBV infected or will be infected eventually, yet only a fraction develop EBV driven PTLD. In our population the incidence was found to be 8.47%. PTLD exhibits a spectrum of features ranging from non specific and reactive to life threatening, indistinguishable from lymphoma. Administration of ATG, the type and extend of HLA mismatch, multiple sites of disease, immune suppression and concurrent infections heighten the risk of systemic manifestation. Rising EBV loads are strongly associated with impending PTLD, which can occur even with an overall modest viral load, thus requiring prompt recognition and early intervention. Disclosures No relevant conflicts of interest to declare.

Impact of proteasome inhibitor vs. IMiD maintenance therapy on outcomes of patients with high-risk multiple myeloma (HRMM).

2020 ◽  
Vol 38 (15_suppl) ◽  
pp. e20557-e20557
Author(s):  
Eric Leon Tam ◽  
David Joseph Iberri ◽  
Michaela Liedtke ◽  
Lori S. Muffly ◽  
Parveen Shiraz ◽  
...  
Keyword(s):  
Multiple Myeloma ◽  
High Risk ◽  
Maintenance Therapy ◽  
Proteasome Inhibitor ◽  
Post Transplant ◽  
Risk Patients ◽  
To Receive ◽  
Standard Risk

e20557 Background: The ideal choice of maintenance therapy in patients with HRMM high-risk multiple myeloma remains unknown. We analyzed the outcomes of patients with HRMM undergoing transplant receiving different maintenance approaches. Methods: Patients with MM undergoing their first ASCT from 2012-19 within 1 year of diagnosis were identified from the prospectively maintained database of patients undergoing ASCT. HRMM was defined as having t(4;14), t(14;16), t(14;20), del17p13, or gain 1q detected on fluorescent in situ hybridization (FISH). Results: Of the 412 patients undergoing ASCT within 1 year of diagnosis, 333 had FISH data available and of these, 37% (124/333) patients had high-risk cytogenetics. Distribution of HR cytogenetics was as follows: deletion 17p: 37% (n = 46), t(4;14): 27% (n = 34), t(14;16) or t(14;20): 12% (n = 26), gain1q: 31% (n = 41). 9% (n = 12) had more than one HR abnormality. In patients with HRMM, median age at transplant was 59 years (range: 39 to 73), and 61% (n = 103) were males. 64% (n = 107) of high-risk patients received post-transplant maintenance therapy. Maintenance therapy in this group included a proteasome inhibitor (PI) in 34% (n = 29), immunomodulatory drug (IMiD) in 59% (n = 51), or both in 7% (n = 6). There was no difference in baseline characteristics of HRMM patients receiving PI vs. IMiD maintenance, except that patients with del17p were more likely to receive PI maintenance therapy (55% vs 28%, p = 0.01). (Table) After a median follow-up of 3.1 years from diagnosis, patients with HRMM had inferior PFS compared to patients with standard risk disease, with median PFS of 3 vs. 4.8 years, p < 0.001. Amongst the 86 HRMM patients receiving maintenance therapy, median PFS in patients receiving PI vs. IMiD vs. both PI + IMiD maintenance was 3 vs. 3.2 vs. 2.2 years, respectively, log-rank p = 0.7. In the sub-group of patients with 17p deletion, median PFS in the three groups was 3 vs. 2.9 vs. 2.2 years, respectively, log-rank p = 0.7. Conclusions: Patients with HRMM have inferior PFS compared to patients with standard risk disease. We observed similar outcomes in HRMM patients post-transplant regardless of the choice of maintenance therapy. [Table: see text]

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