Effect of Chemotherapy Treatment on Fetal-Maternal Microchimerism in Parous Cancer Patients.

Blood ◽  
2006 ◽  
Vol 108 (11) ◽  
pp. 5134-5134
Author(s):  
Gary L. Gilmore ◽  
Melissa M. Holm ◽  
Yuliya Anikanova ◽  
Bushra Haq ◽  
Sri Lakshmi Jasthy ◽  
...  

Abstract Fetal-maternal microchimerism [MC] is a benign condition arising from cross-trafficking of circulating cells between the fetus and the mother during gestation. It is known that MC persists for decades post-partum. The reported incidence of MC is 33% in normal parous women, but the MC status of cancer patients has not been examined. We have completed our study of 200 parous cancer patients, using a sensitive two-round PCR technique with nested primer sets specific for the Y-chromosome specific sequence, DSY14, to detect male DNA in blood samples from female patients. Exhaustive analysis of samples from parous cancer patients gave a frequency of 34% MC+ [68 of 200], which is significantly lower than the 57% MC+ [114 of 200] we found in normal parous women [p<.0001]. We reported an apparent dichotomy based on diagnosis, in that patients with hematologic malignancies had a greater frequency of MC than solid tumor patients [46% vs 29%; p<.0001]. Both groups received similar numbers of chemotherapy cycles [3.4 cycles for solid tumor patients; 3.2 for hem/onc patients], suggesting this difference was not due to less intensive treatment. When we separated the untreated patients from each population, we found that only 25% [3 of 12] untreated patients with hematologic malignancies were MC, whereas 32% of untreated solid tumor patients were MC+ [12 of 38; p=.66, ns]. Therapy appeared to increase the frequency of MC in hematologic patients to 52% [25 of 48; p=.09, ns], but MC was essentially unaffected in solid tumor patients [27%, 28 of 104; p = .18, ns]. The difference between treated solid tumor patients and those with hematologic malignancies was significant [p=.0001]. Thus, one side effect of chemotherapy may be to increase MC in hematologic malignancy, but in solid tumor patients, MC is not affected. The reason for the increased MC in treated hematologic patients in unclear, but we speculate the reduced frequency in untreated patients is due to dilution by the malignant clone, and that chemotherapy restores the normal balance of blood cells in these patients. The reason for reduced MC in solid tumor patients is also not obvious, as DNA yields are roughly equivalent between the two groups of cancer patients. Further analysis of the data is underway to see if an underlying cause can be determined.

2006 ◽  
Vol 24 (18_suppl) ◽  
pp. 8548-8548
Author(s):  
P. Jiang ◽  
M. Choi ◽  
D. Smith ◽  
L. Heilbrun ◽  
S. M. Gadgeel

8548 Background: The percentage of cancer patients ≥ 80 years old is expected to rise in the United States. However data are limited on use of chemotherapy in this group of patients. Methods: Retrospective identification of patients who received systemic chemotherapy at our cancer center between 1/1/2000 to 12/31/2004 was performed using the computer generated pharmacy data and medical records. Patients who had diagnosis of cancer and ≥ 80 years were included in the study; patients receiving only supportive care, hormonal therapy, or oral chemotherapy were excluded. The protocol for this study was approved by the Wayne State University IRB. Results: A total of 133 patients ≥ 80 years who received chemotherapy was analyzed. The median age was 83 and 31% of the patients were ≥ 85 years. There were more females (61%) than males (39%). The gender distribution was more even (47% v. 53%) after excluding gender specific tumors. The racial distribution was diverse- Whites 65 (49%); Blacks 41 (31%); Other 18 (13%); Unknown 9 (7%). 16% of the patients had hematologic malignancy and 84% had solid tumors. Gynecological cancers (32%) followed by aerodigestive cancers (26%) were the most common solid tumors. Solid tumor patients primarily had regional (48%) or distant (45%) disease. During the first regimen, 512 cycles of chemotherapy was delivered with a median of 3 cycles per patient (range 1–24 cycles); 40% of patients received only 2 cycles of chemotherapy. 64% of patients were able to receive chemotherapy without 2nd cycle delay. The distribution of single or multidrug regimens was fairly similar; Solid tumors 52% v. 48%; Hematologic cancers 43% v. 57%. Carboplatin and paclitaxel (22%) was the most common regimen among solid tumor patients. 26% of all patients received a second regimen. The 1 year survival rates among hematologic cancer and solid tumor patients were 65% and 48%, respectively. Stage of disease was the only statistically significant factor predicting survival. Conclusions: In this diverse group of cancer patients ≥ 80 years old and selected for chemotherapy, the treatment was feasible. The survival outcomes in this elderly population were comparable to those of a younger patient population suggesting that the treatment is beneficial. No significant financial relationships to disclose.


2021 ◽  
Vol 8 (Supplement_1) ◽  
pp. S254-S254
Author(s):  
Anne-Marie Chaftari ◽  
Alexandre Malek ◽  
Hiba Dagher ◽  
Ying Jiang ◽  
Arnaud Bayle ◽  
...  

Abstract Background Several studies have shown that underlying cancer is a risk factor for progression of COVID-19 to severe illness and fatal outcome but there is very little data that specifies which underlying cancer puts this patient population at the highest risk. Methods We retrospectively collected de-identified data on 1115 cancer patients diagnosed with COVID-19 between January and November 2020, at 12 centers in Asia, Australia, Europe, North America, and South America. Patient characteristics including age, type of malignancy (hematologic malignancy [HM], lung cancer, and non-lung cancer were determined in association with severe illness as well as all-cause mortality within 30 days after COVID-19 diagnosis. Results By multivariable logistic regression analysis, independent risk factors for 30-day mortality in cancer patients included age > 65 (OR 6.64; 95% CI 3.351to 12.55; p< 0.0001), ALC < 0.5 K/microliter (OR 2.10; 95% CI 1.16 to 3.79; p=0.014), and anemia at < 10g/dl (OR 2.41; 95% CI 1.30 to 4.44; p=0.005). Among cancer patients, the 30-day mortality rate was significantly higher in patients with lung cancer than in patients with non-lung cancer solid tumors, including those with lung metastases (22% vs 9%; p=0.001). Patients with HM tended to have higher 30-day mortality than patients with non-lung cancer solid tumors (13% vs 9% p=0.07) and tended to have a lower mortality rate than patients with lung cancer (p=0.07). Furthermore, HM patients were more likely to be lymphopenic and anemic at diagnosis as well as progress to LRTI and be placed on ventilatory support compared to non-lung cancer solid tumor patients ( p= or < 0.01). In addition, lung cancer and HM patients were more likely to develop hypoxia and require hospital admission than non-lung cancer solid tumor patients ( p=0.01). Conclusion Lung cancer and HM patients are associated with the highest risk of progressing to severe disease and mortality in cancer patients with COVID-19. Hence, cancer patient population should be given the highest priority as far as prevention [vaccination with boosters if needed] as well as preemptive early therapy with monoclonal antibodies right after the onset of COVID-19. Disclosures Monica Slavin, MBBS,MD, F2G (Advisor or Review Panel member)Merck (Advisor or Review Panel member)Pfizer (Advisor or Review Panel member)


2012 ◽  
Vol 30 (15_suppl) ◽  
pp. 6125-6125 ◽  
Author(s):  
Ahmed F. Elsayem ◽  
Carmen E. Gonzalez ◽  
S. J. Yeung ◽  
Kelly W. Merriman ◽  
Knox H. Todd

6125 Background: Cancer is a common presenting condition for emergency departments (EDs); however, there is limited information on outcomes of ED cancer patients subsequently admitted to the hospital. The purpose of this study is to describe outcomes of patients with hematologic malignancies versus those with solid tumors admitted through the ED of a comprehensive cancer center. Methods: We queried the ED database of The University of Texas MD Anderson Cancer Center for calendar year 2010 and linked it to our institutional data warehouse, including tumor registry data. We classified all leukemia and related disorders, lymphoma, multiple myeloma, and bone marrow transplant patients as hematologic malignancies, and remaining cancers as solid tumors. Descriptive statistics, including chi-square, and t-tests were used in two-sided comparisons. All statistical analyses were performed using SPSS version 15. Results: 20,732 total ED visits were made by 9,320 unique cancer patients. Of these, 5,364 (58%) were admitted to the hospital at least once (range 1-13 admits). ED admissions constituted 39% of total unique patients admitted (N=13,753). The main admission indications for solid tumor patients were infectious complications (particularly pneumonia), intractable pain, or dehydration. For hematologic malignancies, the main indication was neutropenic fever. 211/1656 (13%) of liquid tumor patients were admitted to the Intensive Care Unit (ICU) compared to 484/3708 (13%) of solid tumor patients (P=NS). Of all patients admitted through the ED, 587/5364 (10.9%) died during hospitalization. The hematologic hospital mortality rate was 225/1653 (13.6%) versus 362/3708 (9.8%) for solid tumors (P<0.001). Only 242/8389 (3%) of patients admitted directly from outpatient clinics died during the hospitalization (p<0.001). Conclusions: Patients admitted through the ED, particularly those with hematologic malignancies, have a high hospital mortality rate. ED-based palliative care interventions may be justified to improve quality of life and prevent unnecessary costly interventions and ICU admission. Further research should define predictors of poor outcomes in cancer patients admitted through the ED.


Blood ◽  
2008 ◽  
Vol 112 (11) ◽  
pp. 2402-2402
Author(s):  
Elizabeth A Richey ◽  
Veena Shankaran ◽  
Steven Hirschfeld ◽  
Steven M Trifilio ◽  
June McKoy ◽  
...  

Abstract Background: The accelerated approval (AA) regulation (21CFR314.510 Subpart H) is granted by the Food and Drug Administration (FDA) when drugs for serious medical illnesses are shown to be an improvement over available therapy. AA provides an option to use surrogate outcomes considered likely to predict clinical benefit. AA was initially developed to hasten access to HIV drugs, then, in 1995, AA was extended to cancer indications. Sponsors receiving AA are required to confirm clinical benefit (termed subpart H trials). Policy makers have several raised concerns: AA is no longer relevant today as the approval bar via this mechanism has been raised too high; many drugs that received AA did not complete subpart H trials; and some drugs approved by AA were subsequently found to be unsafe or ineffective. Methods: Using publicly available databases, we compared safety, efficacy, clinical development times, and subpart H completion rates for FDA-approved new molecular entities (NMEs) for hematologic and solid tumor cancers from 1995–2008. Results: 37% of all oncology NMEs received AA versus regular approval (64% during 1995–2003 and 33% during 2004–2008). Twenty oncology NMEs received FDA approval for hematologic malignancies (lymphomas, leukemias, Kaposi’s sarcoma, and myelodysplastic syndromes), accounting for 34% of regular approvals and 53% of AAs for oncology NMEs. Compared to NMEs approved for solid tumors, NMEs approved for hematologic malignancies were more likely to involve Orphan Drug indications (95% vs. 32%); to have shorter development times, defined as the interval between investigational new drug filing and marketing approval, (median 5.6 vs. 7.8 years); and to be approved based on phase II studies (65% vs. 29%). Prior to 2004, development times were similar for solid tumor and hematologic malignancy NMEs. Since 2004, development times have decreased by more than 2 years for hematologic malignancy NMEs, but not for solid tumor NMEs. 50% of NMEs approved for hematologic malignancies versus 71% of NMEs for solid tumor diagnoses are included in first-line cancer regimens in current National Comprehensive Cancer Network guidelines. Drugs approved for solid tumor and hematologic indications have similar safety profiles and efficacy; respectively, 30% and 38% carried black box warnings at initial approval, and 15% and 10% had black box warnings added post-approval. Studies confirming efficacy were completed for 89% of NMEs receiving AA for solid tumor indications versus 30% for NMEs receiving AA for hematologic malignancy indications. Concern that sponsors are not completing subpart H commitments has led the FDA to move from basing AA on final results of single-arm phase II trials to interim results of phase III trials. Conclusions: AAs for hematologic malignancy indications are less likely to complete Subpart H commitments. In the current era, development times for NMEs are shorter for hematologic malignancy versus solid tumor indications, principally related to the approval based on Phase II versus Phase III studies. Establishing a global policy that AA approval for cancer drugs should be based on interim results of phase III analyses rather than on final analyses of phase II trials may hamper development of novel therapies for hematologic malignancies. Solide tumor indications Hematologic malignancy indications 1995–2003 (n=21) 2004–2008 (n=10) 1995–2003 (n=11) 2004–2008 (n=9) Drugs receivving AA (%) 29 30 64 33 Orphan drugs (%) 24 40 100 78 Of AAs, Subpart H completion (%) 100 66 27 0 Approval based on phase II trial (%) 33 0 73 78 Median development time (years) 8.4 7.8 8.8 5.2


2009 ◽  
Vol 27 (15_suppl) ◽  
pp. e20730-e20730
Author(s):  
H. M. Ashour ◽  
A. El-Sharif

e20730 Background: Nosocomial infections pose significant threats to hospitalized patients, especially the immunocompromised ones, such as cancer patients. Methods: This study examined the microbial spectrum of gram-negative bacteria in various infection sites in patients with leukemia and solid tumors. The antimicrobial resistance patterns of the isolated bacteria were studied. Results: The most frequently isolated gram-negative bacteria were Klebsiella pneumonia (31.2%) followed by Escherichia coli (22.2%). We report the first-time isolation and identification of a number of less-frequent gram negative bacteria (Chromobacterium violacum, Burkholderia cepacia, Kluyvera ascorbata, Stenotrophomonas maltophilia, Yersinia pseudotuberculosis, and Salmonella arizona). Most of the gram-negative isolates from RTI, GITI, UTI, and BSI were obtained from leukemic patients. All gram-negative isolates from SI were obtained from solid-tumor patients. In both leukemic and solid-tumor patients, gram-negative bacteria causing UTI were mainly Escherichia coli and Klebsiella pneumoniae, while gram-negative bacteria causing RTI were mainly Klebsiella pneumoniae. Escherichia coli was the main gram-negative pathogen causing BSI in solid-tumor patients and GITI in leukemic patients. Isolates of Escherichia coli, Klebsiella, Enterobacter, Pseudomonas, and Acinetobacter species were resistant to most antibiotics tested. There was significant imipenem-resistance in Acinetobacter (40.9%), Pseudomonas (40%), and Enterobacter (22.2%) species, and noticeable imipinem-resistance in Klebsiella (13.9%) and Escherichia coli (8%). Conclusions: This is the first study to report the evolution of imipenem-resistant gram-negative strains in Egypt. Mortality rates were higher in cancer patients with nosocomial Pseudomonas infections than any other bacterial infections. Policies restricting antibiotic consumption should be implemented to avoid the evolution of newer generations of antibiotic resistant-pathogens. No significant financial relationships to disclose.


2020 ◽  
Vol 38 (29_suppl) ◽  
pp. 53-53
Author(s):  
Lesley Wu ◽  
Minira Aslanova ◽  
Haley Hines Theroux ◽  
Hsin-hui Huang ◽  
Cardinale B. Smith

53 Background: Hospitalists have been practicing alongside oncologists to provide high quality care for hospitalized cancer patients. We examined the differences in hospital utilization and outcomes among solid tumor patients admitted to oncologist-led teams (OT) versus hospitalist-led teams (HT). Methods: We performed a retrospective cohort study of patients with solid tumors admitted to the OT or HT at Mount Sinai Hospital from July to December 2019. We excluded patients less than 18 years of age, primary hematologic malignancies, or admission to intensive care or surgical units. We used the Activity Measure for Post Acute Care (AMPAC) and Charlson Comorbidity Index as a measure of functional ability and illness severity, respectively. We performed bivariate and multivariate analyses comparing differences in length of stay, ICU transfers, palliative care consults, healthcare proxy (HCP) decision, new DNR decision, readmission within 30 days and inpatient mortality by type of admitting service (OT vs HT). Results: A total of 544 patients were identified; 61% (334) admitted to HT. There were significant differences according to race and cancer type (p= 0.001 for both). HT patients had more functional impairment (p<0.0001) and poorer prognosis (p=0.0002). In bivariate analysis, HT had significantly more ICU transfers (OT, 2% vs HT, 8%; p=0.008), new DNR decisions (OT, 7% vs HT, 16%; p=0.002), and inpatient mortality (OT, 4% vs HT, 9%; p=0.02) while OT had significantly more palliative care consults (OT, 45% vs HT, 20%; p<0.0001). Multivariate analysis (Table) demonstrates HT had significantly more new DNR decisions (odds ratio [OR]: 0.46, 95% confidence interval [CI]: 0.23-0.93) and OT had significantly more palliative care consults (OR: 4.01, 95% CI: 2.51-6.43). Conclusions: At our academic hospital, inpatient cancer care led by hospitalists is comparable to that of oncologists despite HT caring for more severely ill oncology patients. From a value perspective, hospitalists facilitating care for hospitalized cancer patients will allow oncologists to maximize ambulatory time and focus on active cancer treatment. [Table: see text]


2019 ◽  
Vol 2019 (54) ◽  
pp. 144-148 ◽  
Author(s):  
Lenat Joffe ◽  
Keri L Schadler ◽  
Wei Shen ◽  
Elena J Ladas

Abstract Sarcopenia (severe skeletal muscle wasting) and sarcopenic obesity (skeletal muscle wasting in the setting of excess fat) have been increasingly recognized as important prognostic indicators in adult oncology. Unfavorable changes in lean and adipose tissue masses manifest early in therapy and are associated with altered chemotherapy metabolism as well as increased treatment-related morbidity and mortality. Existing literature addresses the role of body composition in children with hematologic malignancies; however, data is lacking among solid tumor patients. Advances in imaging techniques for quantification of tissue compartments potentiate further investigation in this highly understudied area of pediatric oncology. The following review presents an in-depth discussion of body composition analysis and its potential role in the care of pediatric solid tumor patients. Integration of body tissue measurement into standard practice has broad clinical implications and may improve quality of life and treatment outcomes in this at-risk population.


Circulation ◽  
2015 ◽  
Vol 132 (suppl_3) ◽  
Author(s):  
Attila Feher ◽  
Rekha Parameswaran ◽  
Eytan M Stein ◽  
Dipti Gupta

Objective: Patients with hematologic malignancies are at risk for severe thrombocytopenia (sTP). The risk and benefit of aspirin therapy is not known in thrombocytopenic cancer patients who experience an acute myocardial infarction (AMI). Methods: Medical records of patients with hematologic malignancies diagnosed with AMI at Memorial Sloan Kettering Cancer Center during 2005-2014 were reviewed. sTP was defined as platelet count <50 cells k/μL within 7 days of AMI. Demographics, aspirin use, survival and bleeding outcomes were collected. T-tests and Fisher exact tests were used to compare continuous and categorical variables. Survival rates were calculated using the Kaplan-Meier product limit method; groups were compared with log-rank statistic. Results: 118 patients with hematologic malignancies had AMI. 58/118 (49%) had sTP. 25/58 (43%) of those with sTP received aspirin. Patients were mostly male (70%, n=83), mean age 69±11 years, mean follow up 3.6 years. Non-Hodgkin’s lymphoma was the most common hematologic diagnosis (36%, n=42). Survival was significantly worse in patients with sTP vs. no sTP (23% vs. 50% at 1 year, log rank p=0.008). When compared to no sTP with AMI, patients with sTP and AMI were less likely to receive aspirin (83% vs 43%, p=0.0001), thienopyridine (27% vs 3%, p=0.0005) and to undergo coronary angiography (30% vs. 5%, p=0.0005) and revascularization (17% vs. 3%, p=0.03). Cancer patients with sTP and AMI who received aspirin had improved survival when compared to those not treated with aspirin, (92% vs. 70% at 7 days, 72% vs. 33% at 30 days and 32% vs. 13% at 1 year, log rank p=0.008). No fatal bleeding events occurred. Thrombolysis in Myocardial Infarction (TIMI) major bleeding occurred in one patient without sTP. Conclusions: In hematologic malignancy patients with AMI and sTP the use of aspirin was associated with improved survival without increase in major bleeding.


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