12-month uptake of PD-L1 testing and atezolizumab (atezo) + nab-paclitaxel (nab-pac) treatment in metastatic triple-negative breast cancer (mTNBC) following accelerated FDA-approval in the United States.

2020 ◽  
Vol 38 (15_suppl) ◽  
pp. e13103-e13103
Author(s):  
Leisha A. Emens ◽  
Christopher Craggs ◽  
Marcio Debiasi ◽  
Matthew Kent ◽  
Patricia Luhn ◽  
...  

e13103 Background: In March 2019, atezo + nab-pac received accelerated FDA-approval for the treatment (tx) of patients (pts) with unresectable locally advanced or metastatic TNBC who express PD-L1 in immune cells (IC), based on the results from the randomized IMpassion130 clinical trial. A companion diagnostic, the Ventana SP142 PD-L1 assay, was concurrently approved. This real-world data analysis describes the uptake of both PD-L1 testing and therapy with atezo + nab-pac from the time of approval. Methods: This is a retrospective study using the Flatiron Health electronic health record (EHR) derived de-identified database, representing > 2.4 million US cancer pts from > 280 cancer clinics. Pts diagnosed with mTNBC starting any line of systemic therapy between March 9, 2019 and December 31, 2019 (to be updated in April 2020 for 12-months follow-up) were included. Two cohorts were examined: pts receiving either atezo-based tx, or tx without atezo. Demographics were described in the pt group overall and by line of therapy (LOT). Steroid tx at baseline was classified as any order/administration of a steroid within the first three administrations of a systemic therapy in a given LOT. Any record of a PD-L1 test was reported. Results: 228 pts diagnosed with mTNBC were included; 65 pts (28%) received any atezo combination, the majority in combination with nab-pac: 57% (n = 37) in first-line (1L), 25% (n = 16) in second-line (2L), and 18% (n = 12) in third-line or later (3L+). Median age at metastatic diagnosis (mDx) for atezo-treated pts was: 1L, 65 y (IQR: 49, 72); 2L, 56 y (IQR: 48, 64); 3L+, 52 y (IQR: 42, 60). Median age at mDx for non-atezo-treated patients was: 1L, 63 y (IQR: 53, 74); 2L, 59 y (IQR: 51, 65); 3L+, 61 y (IQR: 53, 71). Of 228 pts, 158 (69%) had any PD-L1 test recorded. Among atezo-treated pts, 62 (95%) had a documented PD-L1 test; of those 40 (62%) were tested using the SP142 assay. Overall, 205 tests were recorded: SP142, n = 96 (46.8%); unknown/not documented, n = 44 (21.5%); 22C3, n = 36 (17.6%); lab-developed test, n = 26 (12.7%); SP263, n = 2 (1.0%); and 28-8, n = 1, (0.5%). 37 (57%) atezo-treated pts received a steroid at baseline. Conclusions: Atezo tx and testing with SP142 is being implemented following accelerated FDA-approval. A considerable proportion of pts received steroids at baseline and had nab-pac as chemotherapy backbone in clinical practice. Clinical outcomes of atezo-treated pts in the real-world setting remain to be further explored pending longer pt follow-up times.

2020 ◽  
Vol 38 (6_suppl) ◽  
pp. 457-457
Author(s):  
Marley Boyd ◽  
Srinivas Annavarapu ◽  
Gurjyot K. Doshi ◽  
Kentaro Imai ◽  
Eric Sbar ◽  
...  

457 Background: Benefit of IO (PD1 and PD-L1 inhibitors) for mUC was observed in clinical trials but real-world evidence for benefit and clinical outcomes is limited. Methods: This was a retrospective study of adult pts with mUC who initiated IO regardless of PD-L1 expression in the first- (1L cohort) or second-line (2L cohort) setting between 5/1/2016-1/31/2019 in the US Oncology Network (USON), a network of community oncology practices. Descriptive and Kaplan-Meier analyses to evaluate baseline characteristics, treatment patterns and clinical outcomes were conducted using data from USON’s electronic heath record. Results: Among 393 pts in the 1L cohort, median (range) age at IO initiation was 77 (42, 90+), 74% were male, 69% were White, and 19.1% and 4.1% had ECOG performance status (PS) 2 and 3/4, respectively. Among the 366 pts in the 2L cohort, median (range) age at IO initiation was 70 (29, 90+), 74% were male, 71% were White, and 19.7% and 1.4% had ECOG PS 2 and 3, respectively. Median (range) follow-up durations from IO initiation were 4.2 (0, 34.1; 1L cohort) and 4.1 (0, 31.3; 2L cohort) months (mo), during which time 43.1% (1L cohort) and 44.4% (2L cohort) of pts died. Median overall survival (OS) from IO initiation (95% confidence interval [CI]) was 10.6 (9.7, 13.2) mo for the 1L cohort and 9.4 (7.1, 11.5) mo for the 2L cohort; 1-year survival probabilities (95% CI) were 46.6% (40.1%, 52.8%; 1L cohort) and 43.4% (36.8%, 49.8%; 2L cohort). By the end of the follow-up, 48.1% of 1L pts and 47.8% of 2L pts were alive and did not advance to next line of therapy, and 13.5% of 1L and 13.4% of 2L cohort pts advanced to the next line of therapy. Median (95% CI) treatment durations were 2.6 (2.1, 2.9) and 2.8 (2.2, 3.5) mo for the 1L and 2L cohorts, respectively; 6-mo ongoing treatment probabilities (95% CI) were 26.6% (22.2%, 31.2%; 1L cohort) and 31.4% (26.4%, 36.4%; 2L cohort). Conclusions: OS of pts in the real world receiving 1L and 2L IO appears consistent with clinical trial results, although survival follow-up is limited. A minority of pts received post-IO therapy. Future research should examine influence of pt characteristics and PD-L1 expression on treatment choice and outcomes.


2017 ◽  
Vol 35 (15_suppl) ◽  
pp. e12546-e12546 ◽  
Author(s):  
Nicole Princic ◽  
Matthew Brouillette ◽  
Derek Tang ◽  
Chinjune Lin ◽  
Brad Lanoue ◽  
...  

e12546 Background: Patient compliance, typically not captured in clinical trials, may have profound effects on treatment effectiveness. As there has been limited real-world data, the objective of this analysis was to examine compliance among HR+/HER2- mBC patients treated with everolimus as a second or later line of therapy in the US across age groups. Methods: In this retrospective cohort study, the MarketScan Commercial and Medicare Supplemental claims databases were used to select post-menopausal HR+/HER2- mBC women who initiated an everolimus-based line of therapy during 1/1/2013- 7/31/2016 study period. The first secondary malignancy diagnosis was the index date. Patients had 6 months of continuous enrollment in their health plans pre- and post- index, and were followed until the earliest of disenrollment, inpatient death, or end of study. Compliance was measured using medication possession ratio (MPR) during a second (2L), third (3L) and fourth (4L) line of therapy. MPR was defined as total days of supply of everolimus during the line of therapy divided by total duration of the line. Results: Of 645 eligible mBC patients treated with everolimus during follow-up, there were 239, 142, and 80 with a 2L, 3L, and 4L of therapy respectively. Mean age overall was 61.1 + 11.7 years and average duration of follow-up was 718.3 + 304.1 days. Across all patients the median MPR ranged during each line from 0.90-0.92 and the majority (93.8%-97.5%) were highly compliant to therapy (defined as MPR>80%). These results were consistent for patients aged <65 and 65+ years across a 2L, 3L, and 4L of therapy (Table). Conclusions: This study shows high compliance for everolimus-based therapy within a 2L, 3L, and 4L of therapy and this is consistent across ages. This real world data suggests good drug manageability and may provide valuable information for clinicians in selecting treatment for mBC. [Table: see text]


2021 ◽  
Vol 8 (Supplement_1) ◽  
pp. S765-S766
Author(s):  
Madison T Preib ◽  
Fanny S Mitrani-Gold ◽  
Ziyu Lan ◽  
Xiaoxi Sun ◽  
Ashish V Joshi

Abstract Background Gonorrhea (GC) is a major public health threat in the US. The Centers for Disease Control and Prevention (CDC) estimated direct healthcare costs of &271 million in 2018. CDC 2015 guidelines (applicable up to December 18, 2020) recommended cephalosporin plus azithromycin for GC. We used real-world data to assess patterns of inappropriate or suboptimal (IA/SO) or appropriate and optimal (AP&OP) antibiotic (AB) prescription (by CDC 2015 guidelines), and related healthcare costs, in US patients with uncomplicated urogenital GC (uUGG) diagnosed from July 1, 2013–June 30, 2018. Methods A retrospective cohort study of IBM MarketScan data (commercial/Medicare claims) in patients ≥ 12 years old with uUGG. Eligible patients had an AB prescription ±5 days of uUGG diagnosis (index date) and continuous health-plan enrollment with ≥ 6 months’ baseline/≥ 12 months’ follow-up data. Patients with complicated urogenital GC were excluded. Patients were stratified by AB prescription (IA/SO or AP&OP; defined in Table 1) during the first uUGG episode (ie, within 30 days of index). Generalized linear models were used for multivariate analysis. Table 1. Definitions of appropriateness of AB prescriptions Results Of 2847 patients with uUGG (58.5% male), 77.1% had an IA/SO prescription (mostly due to IA AB class [~82.0%] and duration [24.0%]), while only 22.9% had an AP&OP prescription; uUGG episodes were more frequent with IA/SO (n=2386) than AP&OP (n=714) prescriptions during follow-up. Patients with IA/SO prescriptions had higher GC-related total adjusted costs per patient (PP) per index episode (&196) vs those with AP&OP prescriptions (&124, p &lt; 0.0001; Figure). Patients with IA/SO prescriptions also had higher GCrelated total adjusted costs PP during follow-up (&220) vs those with AP&OP prescriptions (&148, p &lt; 0.0001), mostly driven by higher outpatient ambulatory and emergency room (ER) adjusted costs with IA/SO (&148 and &71, respectively) vs AP&OP prescriptions (&129 and &12, respectively, p ≤ 0.0152; Figure). ER visits PP at index and during follow-up were higher with IA/SO vs AP&OP prescriptions (p &lt; 0.0001; Table 2). Figure. GC-related costs per patient with uUGG, stratified by appropriateness of AB prescription* Table 2. GC-related HRU per patient with uUGG, stratified by AB prescription Conclusion Most patients with uUGG were not prescribed treatments in accordance with CDC 2015 guidelines. High IA/SO AB prescriptions and associated healthcare costs suggest an unmet need for improved prescribing practices for uUGG in the US. Disclosures Madison T. Preib, MPH, STATinMED Research (Employee, Former employee of STATinMED Research, which received funding from GlaxoSmithKline plc. to conduct this study) Fanny S. Mitrani-Gold, MPH, GlaxoSmithKline plc. (Employee, Shareholder) Ziyu Lan, MSc, STATinMED Research (Employee, Employee of STATinMED Research, which received funding from GlaxoSmithKline plc. to conduct this study) Xiaoxi Sun, MA, STATinMED Research (Employee, Employee of STATinMED Research, which received funding from GlaxoSmithKline plc. to conduct this study) Ashish V. Joshi, PhD, GlaxoSmithKline plc. (Employee, Shareholder)


2020 ◽  
Vol 13 (Suppl_1) ◽  
Author(s):  
David Lin ◽  
Christine Majeski ◽  
Maral DerSarkissian ◽  
Matt Magestro ◽  
Cristi Cavanaugh ◽  
...  

Introduction: Real-world data describing acute pericarditis (AP) etiology in the US are limited. Data on the characteristics of recurrent pericarditis (RP) patients (pts) are also sparse. To fill this gap, our study assesses longitudinal data from a nationwide privately-insured population. Methods: OptumHealth Reporting and Insights employer claims data (1/2007-3/2017) were used. AP pts were identified and categorized as idiopathic or non-idiopathic etiology based on presence or absence of attributable conditions. Among idiopathic AP pts, a subgroup of RP pts was identified. Recurrence was defined as ≥2 AP events separated by >4 weeks. First recurrence date marked the index date. Pts aged ≥18 years with ≥12 months of continuous enrollment pre-index (baseline) were included. Results: Of 17,168 AP pts, 4,175 (24.3%) had non-idiopathic and 12,993 (75.7%) had idiopathic etiology (Table 1). Application of inclusion criteria left 8,822 idiopathic AP pts, of whom 1,604 (18.2%) had ≥1 recurrence during a mean observation period of 29 months. On average, idiopathic RP pts were aged 50.7 years, 51.6% female, and 42.3% had baseline history of hypertension, 23.8% of coronary artery disease, 11.7% of hypercholesterolemia, and 7.3% of myocardial infarction. Mean (±SD) time from initial AP diagnosis to first recurrence was 8.7 (±12.1) months and mean (±SD) number of recurrences was 1.7 (±1.3) per pt. In idiopathic RP pts with ≥4 years of follow-up after the initial AP diagnosis (N=512), 35.9% had ≥2, 18.2% had ≥3, and 9.8% had ≥4 recurrences within 4 years. Conclusions: The etiologic distribution and proportion of pts with RP are consistent with previous reports. About 36% of RP pts experience ≥2 recurrences after AP diagnosis over 4 years. RP represents a significant clinical burden for affected pts.


Blood ◽  
2018 ◽  
Vol 132 (Supplement 1) ◽  
pp. 2268-2268
Author(s):  
Joseph Feliciano ◽  
Nate Way ◽  
Gerald Engley ◽  
Nilanjan Ghosh

Abstract Introduction: Treatment of relapsed or refractory classical Hodgkin lymphoma (R/R cHL) in patients considered ineligible for stem cell transplant (SCT) in the United States (US) has evolved since 2011. It is important to understand the current treatment landscape and the outcomes associated with current standards of care as new treatment options have been introduced. This analysis provides recent real-world evidence on patient characteristics, treatment patterns, and outcomes in R/R cHL patients in the US who are initially considered ineligible for SCT and are treated with or without brentuximab vedotin (BV). Methods: Hematologists and oncologists (N=205) from the US retrospectively identified patients diagnosed with R/R cHL who received at least two lines of therapy and received their most recent line of therapy between January 2014 and May 2018. The physicians were responsible for abstracting data and completing response forms for variables of interest. The current analysis focused on patients who were considered ineligible for SCT by their physician: descriptive statistics on patient demographics/clinical characteristics, treatment patterns, and outcomes by line of therapy; bivariate analyses (chi-square) comparing treatment modalities by line of therapy. Results: Physicians retrospectively identified 297 patients that they considered ineligible for SCT. Mean (SD) age at initial cHL diagnosis was 53.0 (18.5), most patients were male (69.4%) and Caucasian (61.3%). The most common cHL subtype at diagnosis was nodular sclerosis HL (40.4%), and patients had either Stage I/II (45.8%) or Stage III/IV (54.2%) cHL at initial diagnosis. Median follow-up time for the cohort included here was 15.96 months from initiation of 1L treatment. The majority of the cohort (N = 297) received systemic therapy alone (84.5%) compared to those who received systemic therapy in combination with radiation therapy (RT) (15.5%) in 1L. 1L systemic regimens included regimens that contained ABVD alone or ABVD in combination with other regimens (69.4%). Of those who used ABVD alone or in combination with another regimen (N = 206), 24.8% used a PET adapted approach and deescalated to AVD (N = 51) and 11% escalated to be BEACOPP (N = 18). Other systemic regimens included AVD (10.1%), BEACOPP (7.4%) and ICE (5.7 %). The majority of patients achieved a complete response (CR) or partial remission (PR) after 1L therapy (41.4%, 38% respectively) while 34.1% (N = 61) failed to achieve remission or progressed while on therapy. The most common systemic regimens in 2L (N = 293) were BV monotherapy or in combination with bendamustine (34.6%), salvage regimens [including ICE, DHAP, ESHAP or gemcitabine based combinations] (33%), re-challenge with a previous 1L regimen (19.5%), and PD-1 inhibitors (10.8%). Very few patients received systemic therapy in combination with RT (6.7%) in 2L.The most common systemic regimens used in 3L (N = 21) for the selected cohort of patients not eligible for SCT were BV monotherapy (28.6%) and PD-1 inhibitors (33.3%). Median (range) number of cycles in 2L and 3L was four (1-18) and two (1-14), respectively. Treatment outcomes were variable for patients in 2L and 3L. In 2L, 27.6% achieved a CR, 25.6% achieved a PR, while 24.2% and 15.8% were refractory or progressed on treatment. There were no CRs reported in 3L (N = 21). 26 patients died in 2L and 3L combined. Conclusion/Summary: Given the rapid evolution of therapies used to treat R/R cHL, these findings fill a crucial data gap in real-world evidence on patient characteristics, treatment patterns, and outcomes of patients deemed SCT ineligible in the US. Disclosures Feliciano: Seattle Genetics: Employment. Way:Kantar Health: Employment; Seattle Genetics: Research Funding. Engley:Seattle Genetics: Employment. Ghosh:Juno: Consultancy, Research Funding; SGN: Consultancy, Research Funding, Speakers Bureau; PCYC: Consultancy, Research Funding, Speakers Bureau; Celgene: Consultancy; Spectrum: Consultancy; Gilead: Consultancy, Speakers Bureau; Pharmacyclics, an Abbvie Company: Consultancy, Research Funding, Speakers Bureau; Genentech: Research Funding; F. Hoffman-La Roche Ltd: Research Funding; Abbvie: Consultancy, Speakers Bureau; Forty seven Inc: Research Funding; TG Therapeutics: Honoraria, Research Funding.


Blood ◽  
2018 ◽  
Vol 132 (Supplement 1) ◽  
pp. 4163-4163
Author(s):  
Jeff Sharman ◽  
Shaum Kabadi ◽  
Jamyia Clark ◽  
E Susan Amirian ◽  
David J. Andorsky

Abstract Introduction Ibrutinib, a Bruton's tyrosine kinase inhibitor, was approved in the U.S. for the treatment of relapsed or refractory mantle cell lymphoma (MCL) in November of 2013. However, real-world data on ibrutinib use for the treatment of MCL is limited. The purpose of this study was to examine ibrutinib use, dosages, and reasons for treatment discontinuation among MCL patients treated in a community oncology practice setting. Methods The study population consisted of adult (≥18 year old) MCL patients treated with ibrutinib between November 1, 2013 and October 31, 2016, who were not enrolled in a clinical trial and had at least 2 visits to a US Oncology Network (USON) clinic. Patients with other primary cancers were excluded. Patient data were sourced from the USON's electronic health records system, iKnowMed (iKM)™. The structured iKM database provided information on demographics and clinical and treatment characteristics. Manual chart review was used to confirm ibrutinib treatment patterns. Duration of ibrutinib therapy (DOT), overall survival (OS), and progression-free survival (PFS) from systemic treatment initiation were estimated using Kaplan-Meier methods. Events were defined as death in the OS analysis, and progression or death in the PFS analysis. Patients were censored if their treatment was ongoing for DOT. Censors for OS and PFS were patients lost to follow up or those who did not experience a failure event within the study period. Results 159 eligible MCL patients were identified through iKM. The majority of patients were Caucasian (n=141, 88.7%), male (n=121, 76.1%), and diagnosed with Stage IV disease (n=117, 73.6%). Median follow-up for the population was 16.1 months. Approximately 7.5% (n=12) of patients received ibrutinib as first-line therapy (1L), compared to 54.1% (n=86) in 2L and 38.4% (n=61) in 3L or beyond. Median ibrutinib dose at initiation was 560mg (range: 140-700). During ibrutinib treatment, 16.4% (n=26) of patients experienced a dose reduction. Dose holds occurred in 30.2% (n=48), 66.7% (n=32) due toxicities. The overall discontinuation rate was 83.6% The primary reason for discontinuation was disease progression (n=46, 34.6%) followed by toxicities (n=34, 25.6%). Median DOT was higher for patients initiating treatment in 3L+ (14.9: 95% CI 8.8-17.1) compared to other lines. Median PFS was 19.6 (95% CI: 16.5-24.3) for the overall population and median OS was 25.8 months (95% CI: 19.9-not reached). Conclusions Our real-world findings on survival are consistent with those from clinical trials on ibrutinib in relapsed/refractory MCL, although our observed discontinuation rate (~84%) was higher than that of the trial (~58%), which had a similar median follow-up time (16.1 months vs. 15.3 months, respectively). Our findings provide additional data on MCL treatment patterns and patient outcomes in clinical practice. Disclosures Sharman: Acerta: Consultancy, Research Funding; Pharmacyclics, an AbbVie Company: Consultancy, Research Funding. Kabadi:AstraZeneca: Employment. Clark:McKesson Specialty Health: Employment, Equity Ownership. Amirian:McKesson Specialty Health: Employment. Andorsky:Celgene: Research Funding; CTI BioPharma: Consultancy, Research Funding; AstraZeneca: Consultancy; Genentech: Consultancy.


Stroke ◽  
2013 ◽  
Vol 44 (suppl_1) ◽  
Author(s):  
Maxim Mokin ◽  
Travis Dumont ◽  
Erol Veznedaroglu ◽  
Mandy Binning ◽  
Richard Fessler ◽  
...  

Background and Purpose: Based on promising results of the Solitaire FR With the Intention for Thrombectomy (SWIFT) trial, Solitaire FR stent retriever device recently received the Food and Drug Administration (FDA) approval for recanalization of cerebral vessels in patients with acute ischemic stroke. Real world experience with this device since its FDA approval in the United States has not been previously described. Methods: We conducted retrospective analysis of consecutive acute ischemic strokes cases from March 2012 to July 2012 in 10 centers within the United States, where Solitaire FR was used as a single device or in conjunction with other intra-arterial endovascular approaches. Results: A total of 107 patients were identified (mean age, 64 years; male gender, 51%; mean admission NIHSS score 17). Mean time from symptom onset to angiogram (groin puncture) was 4 hrs 47 min. Intravenous thrombolysis with tissue plasminogen activator (tPA) was administered in 37% of cases. Other endovascular techniques utilized in conjunction with Solitaire FR included intra-arterial thrombolysis with tPA (12% of patients), aspiration thrombectomy with Penumbra system (29%) and stenting (17%). Complete recanalization (TIMI 2-3) was achieved in 88% of patients. The rate of sICH within the first 24 hours was 15%. In-hospital mortality was 24%. 30-day clinical follow up data was available on 82 (77%) patients. Of those, 28 patients (34%) had favorable functional outcome (defined as modified Ranking Scale,mRS≤2) and 22 patients (27%) had excellent functional outcome (mRS≤1) at 30 days. Three or more passes with the Solitaire device was associated with a higher incidence of mortality compared with patients requiring 1 or 2 passes only (43% and 18% respectively, p = 0.011). No statistically significant correlation between clot location or length and outcome was evident. Use of other devices with the Solitaire FR was correlated with worsened outcome (p=0.037). Conclusions: This is the first study describing real-world experience with Solitaire FR device outside the SWIFT trial in the United States. Out study shows that variety of other endovascular approaches are used in conjunction with Solitaire FR.


2021 ◽  
pp. 1-2
Author(s):  
Achim Wöckel

<b>Purpose:</b> Treatment with CDK4/6 inhibitors and endocrine therapy (CDK4/6i + ET) is a standard for patients with advanced hormone receptor-positive, HER2-negative (HR + HER2-) breast cancer (BC). However, real-world data on the implementation of therapy usage, efficacy, and toxicity have not yet been reported. <b>Methods:</b> The PRAEGNANT registry was used to identify advanced HR + HER2- BC patients (n = 1136). The use of chemotherapy, ET, everolimus + ET, and CDK4/6i + ET was analyzed for first-line, second-line, and third-line therapy. Progression-free survival (PFS) and overall survival (OS) were also compared between patients treated with CDK4/6i + ET and ET monotherapy. Also toxicity was assessed. <b>Results:</b> CDK4/6i + ET use increased from 38.5% to 62.7% in the first 2 years after CDK4/6i treatment became available (November 2016). Chemotherapy and ET monotherapy use decreased from 2015 to 2018 from 42.2% to 27.2% and from 53% to 9.5%, respectively. In this early analysis no statistically significant differences were found comparing CDK4/6i + ET and ET monotherapy patients with regard to PFS and OS. Leukopenia was seen in 11.3% of patients under CDK4/6i + ET and 0.5% under ET monotherapy. <b>Conclusions:</b> In clinical practice, CDK4/6i + ET has been rapidly implemented. A group of patients with a more unfavorable prognosis was possibly treated in the real-world setting than in the reported randomized clinical trials. The available data suggest that longer follow-up times and a larger sample size are required in order to identify differences in survival outcomes. Studies should be supported that investigate whether chemotherapy can be avoided or delayed in this patient population by using CDK4/6i + ET.


Blood ◽  
2016 ◽  
Vol 128 (22) ◽  
pp. 3555-3555 ◽  
Author(s):  
Changxia Shao ◽  
Matthew Monberg ◽  
Xiting Cao ◽  
Wei Zhou ◽  
Yichen Zhong ◽  
...  

Abstract Background: Carfilzomib (Car, 2012), pomalidomide (Pom, 2013), and panobinostat (Pano, 2015) were approved for the treatment of rrMM patients after failure of at least two prior standard therapies. There is limited real-world data on utilization of these medications, health care resource utilization (HCRU) and costs in patients with rrMM at the US population level. This study aimed to describe treatment pattern, HCRU, and costs in rrMM patients who received at least two prior therapies using a large administrative claims database. Methods: This was a retrospective database analysis using the Truven Health MarketScan Commercial and Medicare Database. Patients (pts) were included if they were diagnosed with MM between Jan 1, 2006 and May 31, 2015, were ≥18 yrs, had no claim for stem cell transplant, and had ≥6 mos continuous enrollment before and ≥1 mos after the 1st MM diagnosis (index date) and treatment initiation (TI). Only patients who had ≥6 mos continuous enrollment after TI were included in HCRU and cost evaluation. If two or more drugs started within 90 days, they were considered as 1 regimen. End of a line of therapy (LOT) was defined when a new treatment was introduced or there was a treatment gap >90 days or end of follow-up, whichever occurred first. Third line of therapy (3L) was identified following 2 prior lines of therapy. Time to next treatment (TTNT) was defined from initiation of the LOT to initiation of subsequent LOT. Duration of treatment (DOT) and TTNT were estimated based on Kaplan-Meier method. Regimens were classified into 6 mutually-exclusive categories, including bortezomib (Bor), lenalidomide (Len), Pom, Car, thalidomide (Thal), and Other based therapies. HCRU and cost (per patient per month, PPPM) were calculated. The total costs included inpatient costs, outpatient costs and pharmacy costs. Results: A total of 9,960 pts were identified with initiation of 1L therapy. Median age was 67 yrs. And 57.4% were male. During an average of 20.0 mos follow-up post TI, 3,282 (33.0%), 1,103 (11.1%) and 400 (4%) pts initiated 2L, 3L, and 4L therapies, respectively. During 3L therapy, Bor (43.5%, including 10.5% for Bor-Len) and Len based regimens (29.8%) were most commonly observed. Median DOTs ranged from Car (3.7 mos) to Len (8.1 mos) based regimens. Median TTNT from short to long was Car, Pom, Bor, Len, Other, and Thal based regimens. On average, each patient with rrMM had 4.5 outpatient visits, 0.1 inpatients visits, 0.1 ER visits and 0.004 hospice care visits per month. The average PPPM costs were $14,286, $13,377, $11,919, for Bor, Len, Thal based regimens and $25,850 and $21,180 for Pom and Car based regimens, respectively. Conclusions: Although novel agents were added to rrMM treatment, Bor and/or Len based regimens remained the most commonly used therapies in 3L setting. Compared to Bor, Len and Thal based therapies, PPPM costs were higher for Pom and Car based regimens. These data could be useful for treatment consideration and economic evaluation. Table Table. Disclosures Shao: Merck & Co., Inc.: Employment. Monberg:Merck & Co.: Employment. Cao:Merck & Co.: Employment. Zhou:Merck & Co.: Employment. Zhong:Merck & Co., Inc.: Employment. Marinello:Merck & Co., Inc.: Employment.


2020 ◽  
Author(s):  
Raymond A. Harvey ◽  
Jeremy A. Rassen ◽  
Carly A. Kabelac ◽  
Wendy Turenne ◽  
Sandy Leonard ◽  
...  

AbstractImportanceThere is limited evidence regarding whether the presence of serum antibodies to SARS-CoV-2 is associated with a decreased risk of future infection. Understanding susceptibility to infection and the role of immune memory is important for identifying at-risk populations and could have implications for vaccine deployment.ObjectiveThe purpose of this study was to evaluate subsequent evidence of SARS-CoV-2 infection based on diagnostic nucleic acid amplification test (NAAT) among individuals who are antibody-positive compared with those who are antibody-negative, using real-world data.DesignThis was an observational descriptive cohort study.ParticipantsThe study utilized a national sample to create cohorts from a de-identified dataset composed of commercial laboratory test results, open and closed medical and pharmacy claims, electronic health records, hospital billing (chargemaster) data, and payer enrollment files from the United States. Patients were indexed as antibody-positive or antibody-negative according to their first SARS-CoV-2 antibody test recorded in the database. Patients with more than 1 antibody test on the index date where results were discordant were excluded.Main Outcomes/MeasuresPrimary endpoints were index antibody test results and post-index diagnostic NAAT results, with infection defined as a positive diagnostic test post-index, as measured in 30-day intervals (0-30, 31-60, 61-90, >90 days). Additional measures included demographic, geographic, and clinical characteristics at the time of the index antibody test, such as recorded signs and symptoms or prior evidence of COVID-19 (diagnoses or NAAT+) and recorded comorbidities.ResultsWe included 3,257,478 unique patients with an index antibody test. Of these, 2,876,773 (88.3%) had a negative index antibody result, 378,606 (11.6%) had a positive index antibody result, and 2,099 (0.1%) had an inconclusive index antibody result. Patients with a negative antibody test were somewhat older at index than those with a positive result (mean of 48 versus 44 years). A fraction (18.4%) of individuals who were initially seropositive converted to seronegative over the follow up period. During the follow-up periods, the ratio (CI) of positive NAAT results among individuals who had a positive antibody test at index versus those with a negative antibody test at index was 2.85 (2.73 - 2.97) at 0-30 days, 0.67 (0.6 - 0.74) at 31-60 days, 0.29 (0.24 - 0.35) at 61-90 days), and 0.10 (0.05 - 0.19) at >90 days.ConclusionsPatients who display positive antibody tests are initially more likely to have a positive NAAT, consistent with prolonged RNA shedding, but over time become markedly less likely to have a positive NAAT. This result suggests seropositivity using commercially available assays is associated with protection from infection. The duration of protection is unknown and may wane over time; this parameter will need to be addressed in a study with extended duration of follow up.Key PointsQuestionCan real-world data be used to evaluate the comparative risk of SARS-CoV-2 infection for individuals who are antibody-positive versus antibody-negative?FindingOf patients indexed on a positive antibody test, 10 of 3,226 with a NAAT (0.3%) had evidence of a positive NAAT > 90 days after index, compared with 491 of 16,157 (3.0%) indexed on a negative antibody test.MeaningIndividuals who are seropositive for SARS-CoV-2 based on commercial assays may be at decreased future risk of SARS-CoV-2 infection.


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