scholarly journals Achondroplasia Natural History Study (CLARITY): a multicenter retrospective cohort study of achondroplasia in the United States

Author(s):  
Julie E. Hoover-Fong ◽  
Adekemi Y. Alade ◽  
S. Shahrukh Hashmi ◽  
Jacqueline T. Hecht ◽  
Janet M. Legare ◽  
...  

Abstract Purpose Achondroplasia is the most common short stature skeletal dysplasia (1:20,000–30,000), but the risk of adverse health outcomes from cardiovascular diseases, pain, poor function, excess weight, and sleep apnea is unclear. A multicenter retrospective natural history study was conducted to understand medical and surgical practices in achondroplasia. Methods Data from patients with achondroplasia evaluated by clinical geneticists at Johns Hopkins University, A.I. duPont Hospital for Children, McGovern Medical School UTHealth, and University of Wisconsin were populated into a REDCap database. All available retrospective medical records of anthropometry (length/height, weight, occipitofrontal circumference), surgery, polysomnography (PSG), and imaging (e.g., X-ray, magnetic resonance imaging) were included. Results Data from 1,374 patients (48.8% female; mean age 15.4 ± 13.9 years) constitute the primary achondroplasia cohort (PAC) with 496 subjects remaining clinically active and eligible for prospective studies. Within the PAC, 76.0% had a de novo FGFR3 pathologic variant and 1,094 (79.6%) had one or more achondroplasia-related surgeries. There are ≥37,000 anthropometry values, 1,631 PSGs and 10,727 imaging studies. Conclusion This is the largest multicenter achondroplasia natural history study, providing a vast array of medical information for use in caring for these patients. This well-phenotyped cohort is a reference population against which future medical and surgical interventions can be compared.

Author(s):  
Janet M. Legare ◽  
Chengxin Liu ◽  
Richard M. Pauli ◽  
Adekemi Yewande Alade ◽  
S. Shahrukh Hashmi ◽  
...  

OBJECTIVE The authors sought to determine the overall incidence of cervicomedullary decompression (CMD) in patients with achondroplasia and the characteristics associated with those surgeries across multiple institutions with experience caring for individuals with skeletal dysplasias. METHODS Data from CLARITY (Achondroplasia Natural History Study) for 1374 patients with achondroplasia from four skeletal dysplasia centers (A. I. duPont Hospital for Children, Johns Hopkins University, University of Texas Health, and University of Wisconsin School of Medicine and Public Health) followed from 1957 to 2017 were recorded in a Research Electronic Data Capture (REDCap) database. Data collected and analyzed included surgeries, indications, complications, ages at time of procedures, screening procedures, and medical diagnoses. RESULTS There were 314 CMD procedures in 281 patients (20.5% of the entire cohort). The median age of first CMD was 1.3 years in males and 1.1 years in females. Over time, there was a decrease in the median age of patients at first CMD. All patients born before 1980 who underwent CMD had the procedure after 5 years of age, whereas 98% of patients born after 2010 underwent CMD before 5 years of age. In addition, a greater proportion of patients born in more recent decades had documented neuroimaging and polysomnography (PSG) prior to CMD. Ventriculoperitoneal shunts (VPSs) were placed more frequently in patients undergoing CMD (23%) than in the entire cohort (8%). Patients who required either CMD or VPS were 7 times more likely to require both surgeries than patients who required neither surgery (OR 7.0, 95% CI 4.66–10.53; p < 0.0001). Overall, 10.3% of patients who underwent CMD required a subsequent CMD. CONCLUSIONS The prevalence of CMD in this large achondroplasia cohort was 20%, with more recently treated patients undergoing first CMD at younger ages than earlier patients. The use of neuroimaging and PSG screening modalities increased over time, suggesting that increased and better surveillance contributed to earlier identification and intervention in patients with cervicomedullary stenosis and its complications.


2021 ◽  
Vol 39 (15_suppl) ◽  
pp. 11560-11560
Author(s):  
Danielle Braggio ◽  
Amanda Lucas ◽  
Lynne Hernandez ◽  
Kelly Mercier

11560 Background: The Desmoid Tumor Research Foundation (DTRF) launched the natural history study (NHS) in 2017. At this time, there are no standard-of-care options for this rare sarcoma. The treatments, clinical descriptors, and the patient reported outcomes to pharmacologic agents are described here within. Methods: The web-based natural history study launched September 2017 in collaboration with the National Organization of Rare Disorders. It contains 15 surveys covering diagnostics, disease, treatment, care management, and quality of life. Treatment types included in the DTRF NHS were pharmacology, surgery, radiation, high-intensity focused ultrasound (HiFU), and active surveillance (watch and wait). Results: While surgery was once the primary intervention for desmoid tumor patients, the NHS participants reported that 47.6% had received active surveillance or no systemic treatment at diagnosis. This is most common for desmoid tumors located in abdominal wall (54/103; 52.4%). There were 87 reported cases of complete surgical resection, 38 incomplete resections, and 23 bowel resections. 9 amputations were reported; 8 participants reported recurrent disease following the removal of the limb. The non-surgical interventions, such as radiation and HiFU, were mostly described for participants with chest wall tumors (15 pts) and joints/extremities (10 pts). Many options for systemic therapies were described including sorafenib (44/284; 15.5%), sulindac (36/284; 12.7%), and anti-hormonal agents tamoxifen and toremifene (34/285; 10.9%) were described. Targeted agents, such as gamma secretase inhibitor, pazopanib, and sorafenib, were greater in the United States than the non-US country participants (21% vs 9%). Multiple lines of treatments were reported by 81 participants, surgery is greatest as the first intervention for all tumor locations (49/81, 60%), with the exception of those with head/neck tumors who received chemotherapy (6/11, 55%). Analysis has started to evaluate the efficacy of systemic treatments from these NHS data. The table describes the participant reported outcomes of anti-hormonal agents, chemotherapeutics, non-steroidal anti-inflammatories, and targeted agents. Both chemotherapies and targeted agents were reported to have 38.1% response rates from the participants with 34.3% and 23.8% of participants reported progressive disease on therapy, respectively. Conclusions: Desmoid tumor NHS study participants reported the use of many treatment modalities demonstrating a range of frequency of use by tumor location and efficacy. Data collection through the DTRF NHS is ongoing.[Table: see text]


2021 ◽  
Vol 39 (15_suppl) ◽  
pp. e23549-e23549
Author(s):  
Amanda Lucas ◽  
Danielle Braggio ◽  
Lynne Hernandez ◽  
Kelly Mercier

e23549 Background: Desmoid tumors are a benign sarcoma diagnosed in 4-5 patients per million each year. The Desmoid Tumor Research Foundation (DTRF) launched the patient registry and natural history study (NHS) in 2017. This is a retrospective analysis of diagnostic data collected, tumor location, rates of misdiagnosis, how genetics testing is being incorporated into clinical practice, and additional clinical trial participation. Methods: The NHS launched September 2017 and contains 15 surveys covering diagnostics, disease, treatment, care management, and quality of life. Current reporting as of December 31, 2020, contains 619 participants or legally authorized representatives for which a subset have completed the surveys on desmoid tumor diagnoses. Results: Survey analysis documents that the most prevalent tumor locations were intra-abdominal 35.5% (220), joint / extremities 21.2% (131), and chest wall 14.7% (91). The majority of participants, 68.2%, reported that they had unifocal tumors (199/292), 19.5% reported that they had multifocal desmoid tumors (57). Biopsy procedures were the primary method of diagnosis according to 57.2% (167/292) of the participants, with needle biopsy comprising 19.8% (33/167). Biopsy as the primary method of diagnosis was most prevalent in tumors of the head and neck (18/26, 69.2%), chest wall (32/47, 68.1%) joint /extremities (50/90, 55.6%), and abdominal tumors (27/51, 52.9%). Additionally, imaging methods (CT, MRI) were the primary method of diagnosis in 22.6% (66/292) and surgical resection 14.4% (42/292). Misdiagnosis is common for this tumor type, as 41.0% (119/290) participants reported an incorrect initial diagnosis. The reported incorrect diagnoses are described in the table. Genetic testing is not standard of care for desmoid tumors but is increasing in practice. A total of 78 participants (28%) of 282 participants report they had genetic testing (germline or somatic) of their tumor tissue. The majority of those participants, 65.4% (51/78), reported having Familial Adenomatous Polyposis (FAP). Of the participants that had genetic testing, 89.0% live in the United States. 10.5% of participants (37/353) have reported having participated in clinical trials. The majority of participants (317/368, 86.1%) are willing to participate in other studies in the future, with 77.4% (285/368) willing to donate specimens for biomarker studies. Conclusions: Participants with desmoid tumors report many methods of diagnosis for their diverse tumor locations, high rates of misdiagnosis, and increased rates of genetic mutation testing. Data collection through the DTRF NHS is ongoing.[Table: see text]


2019 ◽  
Vol 6 (Supplement_2) ◽  
pp. S178-S179
Author(s):  
Derek Thomas Larson ◽  
Seunghyun Won ◽  
Robert G Deiss ◽  
Anuradha Ganesan ◽  
Ryan Maves ◽  
...  

Abstract Background The use of antiretroviral therapy has reduced morbidity and mortality associated with HIV infection primarily due to the reduction of AIDS-related events. Although guidelines have aimed to standardize preventive care, disparities in prevention of cardiovascular disease remain prevalent across multiple cohorts. Methods The US Military HIV Natural History Study is an open cohort of Department of Defense beneficiaries. We included subjects aged 21–75 whose most recent study visit was between October 2015 and September 2016 and conducted a retrospective cross-sectional analysis of established cardiovascular disease risk factors and statin use. To determine statin eligibility we used the American College of Cardiology/American Heart Association 2013 atherosclerotic cardiovascular disease management guidelines and included subjects who had all necessary data elements for analysis. Results The participants (n = 1223) were predominantly middle-aged (median 47 years, Interquartile Range [IQR] 33–55), male (95%), and were racially diverse (46% African-American, 16% Hispanic/other). The rate of tobacco use was 16%, diabetes was 11%, and 36% had hypertension. In total, 486 (40%) patients met criteria for statin therapy, with 17% of those being for secondary prevention. As of their last visit, 52 (4%) had a detectable HIV viral load. Statins were prescribed to only 302 (62%) of those with an indication, with lower prescription rates in African Americans (52%) and Hispanics (58%) than Caucasians (73%). Average blood pressure, rates of tobacco use, and prevalence of diabetes were equal between the African American and Caucasian groups. Conclusion We found significant racial disparities in both primary and secondary cardiovascular disease mitigation within the military healthcare system. Previous studies have found similar racial differences attributed to socioeconomic factors and higher rates of intravenous drug use. As active duty service members have a stable income, open access to healthcare, and low rates of injection drug use, our findings challenge that premise. Understanding whether this is due to prescribing practices, physician-patient relationships, or healthcare uptake is critical to narrowing this major gap in care. Disclosures All authors: No reported disclosures.


2008 ◽  
Vol 12 (1) ◽  
Author(s):  
Anthony G Picciano ◽  
Robert V. Steiner

Every child has a right to an education. In the United States, the issue is not necessarily about access to a school but access to a quality education. With strict compulsory education laws, more than 50 million students enrolled in primary and secondary schools, and billions of dollars spent annually on public and private education, American children surely have access to buildings and classrooms. However, because of a complex and competitive system of shared policymaking among national, state, and local governments, not all schools are created equal nor are equal education opportunities available for the poor, minorities, and underprivileged. One manifestation of this inequity is the lack of qualified teachers in many urban and rural schools to teach certain subjects such as science, mathematics, and technology. The purpose of this article is to describe a partnership model between two major institutions (The American Museum of Natural History and The City University of New York) and the program designed to improve the way teachers are trained and children are taught and introduced to the world of science. These two institutions have partnered on various projects over the years to expand educational opportunity especially in the teaching of science. One of the more successful projects is Seminars on Science (SoS), an online teacher education and professional development program, that connects teachers across the United States and around the world to cutting-edge research and provides them with powerful classroom resources. This article provides the institutional perspectives, the challenges and the strategies that fostered this partnership.


Sign in / Sign up

Export Citation Format

Share Document