海口市龙华区大同街道龙昆社区卫生服务中心青光眼是一组以眼压异常,导致视神经萎缩及凹陷、视野缺损及视力下降为共同特征的眼科常见疾病,是不可逆转的。,原发性青光眼的病因尚不清楚,可能与遗传因素有关。 继发性青光眼常见的原发病变主要有炎症、外伤、出血、血管疾病、相关药物、眼部手术及占位性病变等,干扰或破坏了正常的房水循环。 先天性青光眼是由于胎儿时期前房角组织发育异常而引起。,眼底,原发性青光眼患者可在药物控制眼压后行手术治疗;继发性青光眼患者在药物控制眼压后行相应原发病治疗,如老年性白内障膨胀期继发青光眼患者,在控制眼压后行白内障手术治疗。,急性虹膜睫状体炎 可出现视力下降明显,视物模糊,眼球疼痛,眼睛充血等症状,眼科检查鉴别前房深度正常,前房闪光明显阳性、有浮游物,瞳孔缩小有后粘连,眼压正常或偏低或稍高,角膜后壁有较多灰白色沉着物。 其他系统疾病 因闭角型青光眼急性发作时,常有头痛、恶心、呕吐等症状,可被误诊为脑血管疾病或胃肠系统疾病,可通过眼科检查进行确认。,无,眼内组织结构检查 包括裂隙灯显微镜检查、前房角镜检查、眼底照相和光学相干断层扫描(OCT)检查等。 裂隙灯显微镜检查可观察角膜水肿、前房深浅、瞳孔活动等情况。 前房角镜可清晰观察房角图像。 眼底照相可观察眼底视盘形态及杯盘比有无异常。 光学相干断层扫描可分析患者视神经纤维层厚度及黄斑区厚度。 检查时保持良好心态,呼吸平稳,眼部保持平静,不要随便眨眼或者转动眼球。听从医生指挥转动眼球。 眼压测量 判断眼压情况。 青光眼患者常合并病理性高眼压。 双眼同时注视前方,睁大眼睛注视仪器内红色指示点。测量时有轻微气流喷出,避免瞬目(眨眼或闭眼)及后退。 视野检查 判断视野有无缺损,高眼压症发展为青光眼时可出现视野缺损。 医生会将你的一眼遮盖,伸出自己的手来回摆动,在两人之间从各个方向的外周向中心移动。觉察手指出现的刹那,立即告知医生。 视野仪检查需要患者按医生要求判断闪烁光标,手动按压按钮。,。
擅长社区常见病多发病的诊治:高血压、糖尿病、冠心病、心律失常、脑血管疾病、高脂血症、高尿酸血症、痛风、前列腺增生、慢性肾功能不全、骨质疏松、上呼吸道感染、支气管炎、支气管肺炎、哮喘、消化不良、急慢性胃炎、胃肠功能紊乱、胆囊炎、失眠以及体检报告的解读
当地时间10月29日礼来宣布了Ⅲb期临床试验(TRAILBLAZER-ALZ 6)的积极结果,对于早期症状性阿尔茨海默病成人患者,用改良滴定方案接受donanemab治疗的患者在24周主要终点时,伴水肿/积液的淀粉样蛋白相关影像学异常(ARIA-E)有所减少。
donanemab这个新药在今年7月获批于美国,又在之后获日本厚生劳动省、英国药品和医疗产品监管局批准,用于轻度阿尔茨海默病、轻度认知功能障碍的治疗。donanemab在国内2023年取得突破性治疗药物认定,并纳入优先审评审批程序,目前还在审评审批过程中。
CDE官网截图
但在FDA说明书中有黑框警告,大意是应用该药时应注意淀粉样蛋白相关影像学异常(ARIA),表现为ARIA-E和ARIA伴含铁血黄素沉积(ARIA-H),通常发生在治疗早期,且无症状,很少发生严重和危及生命的事件。本次试验的积极结果和这个黑框警告相关。一起来看详情。
FDA说明书截图
给药方式有哪些改变?会不会影响效果?
TRAILBLAZER-ALZ 6是一项多中心随机双盲Ⅲb期研究,主要研究donanemab的不同给药方案对早期症状性AD患者ARIA-E和淀粉样蛋白清除率的影响,这里的早期AD指的是轻度认知障碍(MCI)和轻度痴呆疾病阶段。
给药方式和既往不同,既往标准给药方案是在前三次输注时接受2瓶(700mg)donanemab,然后再接受4瓶(1400mg);改良滴定方式是患者第一次输注1瓶(350mg),第二次输注2瓶(700mg),第三次输注3瓶(1050mg),此后每次输注4瓶(1400mg)。
研究的主要终点是第24周时患者出现ARIA-E占总参与者的比例,结果显示接受改良滴定方式的患者ARIA-E发生率为14%,而标准给药方案为24%,相对风险降低41%。载脂蛋白E(APOE)是已知的阿尔茨海默病遗传风险因素的携带者,在这些患者中,19%患者在改良滴定时患有ARIA-E,而标准给药方案中为57%,相对风险降低67%。
看到这里你或许也有疑问,虽然ARIA-E的发生风险降低了,但改良滴定方案会不会影响疗效?答案是不会。
与接受标准给药方案的患者相比,改良滴定患者淀粉样斑块和p-tau217减少。改良滴定的患者的淀粉样斑块水平较基线平均降低 67%,而标准给药组患者为69%。
参考来源
1.Modified Titration of Donanemab Demonstrated Reduction of ARIA-E in Early Symptomatic Alzheimer's Disease Patients in Phase Ⅲb study.
2.CED官网.
3.A Study of Different Donanemab (LY3002813) Dosing Regimens in Adults With Early Alzheimer's Disease (TRAILBLAZER-ALZ 6).
当地时间10月29日,阿西米尼(asciminib)获美国食品药品管理局(FDA)加速批准[1] ,用于慢性期新诊断的费城染色体阳性慢性粒细胞白血病(Ph+CML)成年患者。CML是一种骨髓和血细胞癌症,通常由费城染色体的异常染色体引起。在一线治疗中,约1/3的患者会出现下列问题:由于不良反应或者治疗无效而停止酪氨酸激酶抑制剂(TKI)治疗。
为了解决这一问题,需要开发新的药物,asciminib就是解决这一困境的新药。早在2022年8月,加拿大药物和卫生技术局(CADTH)建议[2] :“若满足条件,可通过公共药物计划报销asciminib用于治疗费城染色体阳性慢性粒细胞白血病。”
asciminib为何得到FDA的青睐?
本次获批基于一项III期多中心随机研究,研究目的是比较每日80mg的asciminib与TKI治疗的疗效。TKI治疗是接受伊马替尼、尼洛替尼、达沙替尼或博舒替尼任意一种治疗。
共有405名患者被随机分配(1:1)进两组治疗。主要疗效结局指标是48周时的主要分子反应(MMR)率。这个指标是慢性髓性白血病的关键指标,这个比例越高,说明该治疗在基因水平上对疾病的控制效果越好,能够更有效地抑制疾病相关基因的表达,进而有望更好地控制疾病的进展、改善患者的症状和预后。
研究结果显示,48周时MMR率方面,asciminib组中为68%(95% CI: 61, 74),TKI组为49%(95% CI: 42, 56),二者相差19%。细看具体的TKI,入组伊马替尼和其他TKI药物入组比例为1:1;asciminib组的MMR率为69%(95% CI: 59, 78),而伊马替尼组为40%(95% CI: 31, 50),相差近30%(95% CI: 17, 42)。
这个新药安全吗?每周需要打几次药?
根据FDA数据显示,在新诊断和既往接受过治疗的患者,应用新药最常见的不良反应(≥20%)是肌肉骨骼疼痛、皮疹、疲劳、上呼吸道感染、头痛、腹痛和腹泻。若只看新诊断的患者,最常见的实验室异常(≥40%)是淋巴细胞计数降低、白细胞计数降低、血小板计数降低、中性粒细胞计数降低等。
根据FDA已批准的asciminib说明书,用药期间还需要注意一下事项:
1.骨髓抑制 :用药期间可能因出现骨髓抑制,发生血小板减少症、中性粒细胞减少症和贫血。用药应在治疗的前3个月,需要每两周进行一次全血细胞计数,此后每月进行一次检测,从而判断患者有无骨髓抑制症状。根据严重程度,咨询医生是否需要停药。
2.胰腺毒性 :患者可能出现血清脂肪酶和淀粉酶无症状升高,每月需评估血清脂肪酶和淀粉酶水平,如果您有胰腺炎,则注意主动告知医生,需要进行频率更高的检测。
3.高血压风险 :可能出现3级或4级高血压风险,应注意检测血压。
4.超敏反应 :可能出现3级或4级超敏反应,包括皮疹、水肿和支气管痉挛。如果出现这些症状,需及时反馈医生,医生会根据超敏反应的体征和症状,开始适当的治疗。
5.心血管毒性 :如果您有心血管病史,需要告知医生;对于3级或更高级别的心血管毒性,医生会考虑暂停用药、减少剂量或永久停药。
6.胚胎/胎儿毒性 :若您在怀孕期间用药或在服用药物期间怀孕,可能对孩子有潜在风险。这个新药是口服药,需要根据不同的给药剂量(80mg或40mg)每天/或每两天用药。
近些年来,还有哪些白血病药物获批FDA?
根据FDA肿瘤学/血液系统恶性肿瘤批准通知,白血病相关新药整理如下表。
另外可以看出21年时asciminib已获批白血病治疗,但限定既往接受过两种或更多TKIs治疗,本次获批属于扩大适应证。
参考来源:
1.FDA grants accelerated approval to asciminib for newly diagnosed chronic myeloid leukemia. 2.Asciminib(Scemblix):CADTHReimbursementRecommendation:Indication:ForthetreatmentofadultpatientswithPhiladelphiachromosome-positivechronicmyeloidleukemia(Ph+CML)inchronicphase(CP)previouslytreatedwith2ormoretyrosinekinaseinhibitors.Ottawa(ON):CanadianAgencyforDrugsandTechnologiesinHealth;2022Aug.PMID:38713779. 3.AStudyofOralAsciminibVersusOtherTKIsinAdultPatientsWithNewlyDiagnosedPh+CML-CP. 4.Product information:SCEMBLIX-asciminibtablet,filmcoated.UpdatedAugust7,2024. 5.Oncology(Cancer)/HematologicMalignanciesApprovalNotifications.
以下内容来源于新英格兰医学杂志。
以下内容来源于新英格兰医学杂志。
Presentation of Case
Dr. Christine M. Parsons (Medicine): A 75-year-old woman was evaluated at this hospital because of arthritis, abdominal pain, edema, malaise, and fever.
Three weeks before the current admission, the patient noticed waxing and waning “throbbing” pain in the right upper abdomen, which she rated at 9 (on a scale of 0 to 10, with 10 indicating the most severe pain) at its maximal intensity. The pain was associated with nausea and fever with a temperature of up to 39.0°C. Pain worsened after food consumption and was relieved with acetaminophen. During the 3 weeks before the current admission, edema developed in both legs; it had started at the ankles and gradually progressed upward to the hips. When the edema began to affect her ambulation, she presented to the emergency department of this hospital.
A review of systems that was obtained from the patient and her family was notable for intermittent fever, abdominal bloating, anorexia, and fatigue that had progressed during the previous 3 weeks. The patient reported new orthopnea and nonproductive cough. Approximately 4 weeks earlier, she had had diarrhea for several days. During the 6 weeks before the current admission, the patient had lost 9 kg unintentionally; she also had had pain in the wrists and hands, 3 days of burning and dryness of the eyes, and diffuse myalgias. She had not had night sweats, dry mouth, jaw claudication, vision changes, urinary symptoms, or oral, nasal, or genital ulcers.
The patient’s medical history was notable for multiple myeloma (for which treatment with thalidomide and melphalan had been initiated 2 years earlier and was stopped approximately 1 year before the current admission); hypothyroidism; chikungunya virus infection (diagnosed 7 years earlier); seropositive erosive rheumatoid arthritis affecting the hands, wrists, elbows, and shoulders (diagnosed 3 years earlier); vitiligo; and osteoarthritis of the right hip, for which she had undergone arthroplasty. Evidence of gastritis was reportedly seen on endoscopy that had been performed 6 months earlier. Medications included daily treatment with levothyroxine and acetaminophen and pipazethate hydrochloride as needed for cough. The patient consumed chamomile and horsetail herbal teas. She had no known allergies to medications, but she had been advised not to take nonsteroidal antiinflammatory drugs after her diagnosis of multiple myeloma.
Approximately 5 months before the current admission, the patient had emigrated from Central America. She lived with her daughter and grandchildren in an urban area of New England. She had previously worked in health care. She had no history of alcohol, tobacco, or other substance use. There was no family history of cancer or autoimmune, renal, gastrointestinal, pulmonary, or cardiac disease.
On examination, the temporal temperature was 37.1°C, the heart rate 106 beats per minute, the blood pressure 152/67 mm Hg, and the oxygen saturation 100% while the patient was breathing ambient air. She had a frail appearance and bitemporal cachexia. The weight was 41 kg and the body-mass index (the weight in kilograms divided by the square of the height in meters) 15.2. Her dentition was poor; most of the teeth were missing, caries were present in the remaining teeth, and the mucous membranes were dry. She had abdominal tenderness on the right side and mild abdominal distention, without organomegaly or guarding. Bilateral axillary lymphadenopathy was palpable. Infrequent inspiratory wheezing was noted.
The patient had swan-neck deformity, boutonnière deformity, ulnar deviation, and distal hyperextensibility of the thumbs (Fig. 1). Subcutaneous nodules were observed on the proximal interphalangeal joints of the second and third fingers of the right hand and on the proximal interphalangeal joint of the fourth finger of the left hand. Synovial thickening of the metacarpophalangeal joints of the second fingers was noted. There was mild swelling and tenderness of the wrists. She had pain with flexion of the shoulders and right hip, and there was subtle swelling of the shoulders and right knee. Pitting edema (3+) and vitiligo were noted on the legs. No sclerodactyly, digital pitting, telangiectasias, appreciable calcinosis, nodules, nail changes (including pitting), or tophi were present. The remainder of the examination was normal.
The blood levels of glucose, alanine aminotransferase, aspartate aminotransferase, bilirubin, globulin, lactate, lipase, magnesium, and phosphorus were normal, as were the prothrombin time and international normalized ratio; other laboratory test results are shown in Table 1. Urinalysis showed 3+ protein and 3+ blood, and microscopic examination of the sediment revealed 5 to 10 red cells per high-power field and granular casts. Urine and blood were obtained for culture. An electrocardiogram met (at a borderline level) the voltage criteria for left ventricular hypertrophy.
Dr. Rene Balza Romero: Computed tomography (CT) of the chest, abdomen, and pelvis, performed after the intravenous administration of contrast material, revealed scattered subcentimeter pulmonary nodules (including clusters in the right middle lobe and patchy and ground-glass opacities in the left upper lobe), trace pleural effusion in the left lung, coronary and valvular calcifications, and trace pericardial effusion, ascites, and anasarca. The scans also showed slight enlargement of the axillary lymph nodes (up to 11 mm in the short axis) bilaterally and a chronic-appearing compression fracture involving the T12 vertebral body.
Dr. Parsons: Morphine and lactated Ringer’s solution were administered intravenously. On the second day in the emergency department (also referred to as hospital day 2), the blood levels of haptoglobin, folate, and vitamin B12 were normal; other laboratory test results are shown in Table 1. A rapid antigen test for malaria was positive. Wright–Giemsa staining of thick and thin peripheral-blood smears was negative for parasites; the smears also showed Döhle bodies and basophilic stippling. Antigliadin antibodies and anti–tissue transglutaminase antibodies were not detected. Tests for hepatitis A IgG and hepatitis C antibodies were positive. Tests for hepatitis B core and surface antibodies were negative. A test for human immunodeficiency virus type 1 (HIV-1) and type 2 (HIV-2) was negative.
Findings on abdominal ultrasound imaging performed on the second day (Fig. 2A and 2B) were notable for a small volume of ascites and kidneys with echogenic parenchyma. Ultrasonography of the legs showed no deep venous thrombosis. An echocardiogram showed normal ventricular size and function, aortic sclerosis with mild aortic insufficiency, moderate tricuspid regurgitation, a right ventricular systolic pressure of 39 mm Hg, and a small circumferential pericardial effusion. Intravenous hydromorphone was administered, and the patient was admitted to the hospital.
On the third day (also referred to as hospital day 3), nucleic acid testing for cytomegalovirus, Epstein–Barr virus, and hepatitis C virus was negative, and a stool antigen test for Helicobacter pylori was negative. An interferon-γ release assay for Mycobacterium tuberculosis was also negative. Oral acetaminophen and ivermectin and intravenous hydromorphone and furosemide were administered.
Dr. Balza Romero: Radiographs of the hands (Fig. 2C through 2F) showed joint-space narrowing of both radiocarpal joints and proximal interphalangeal erosions involving both hands. Radiographs of the shoulders showed arthritis of the glenohumeral joint and alignment suggestive of a tear of the right rotator cuff. A radiograph of the pelvis showed diffuse joint-space narrowing of the left hip, without osteophytosis, and an intact right hip prosthesis.
Dr. Parsons: Diagnostic tests were performed, and management decisions were made.
Final Diagnosis
Overlap syndrome of rheumatoid arthritis and systemic lupus erythematosus complicated by proliferative lupus nephritis, superimposed on amyloid A amyloidosis.
以下内容来源于PubMed。
Abstract
Sacituzumab govitecan (SG) significantly improved progression-free survival (PFS) and overall survival (OS) versus chemotherapy in hormone receptor-positive human epidermal growth factor receptor 2-negative (HR+HER2-) metastatic breast cancer (mBC) in the global TROPiCS-02 study. TROPiCS-02 enrolled few Asian patients. Here we report results of SG in Asian patients with HR+HER2- mBC from the EVER-132-002 study. Patients were randomized to SG (n = 166) or chemotherapy (n = 165). The primary endpoint was met: PFS was improved with SG versus chemotherapy (hazard ratio of 0.67, 95% confidence interval 0.52-0.87; P = 0.0028; median 4.3 versus 4.2 months). OS also improved with SG versus chemotherapy (hazard ratio of 0.64, 95% confidence interval 0.47-0.88; P = 0.0061; median 21.0 versus 15.3 months). The most common grade ≥3 treatment-emergent adverse events were neutropenia, leukopenia and anemia. SG demonstrated significant and clinically meaningful improvement in PFS and OS versus chemotherapy, with a manageable safety profile consistent with prior studies. SG represents a promising treatment option for Asian patients with HR+HER2- mBC (ClinicalTrials.gov identifier no. NCT04639986 ).
以下内容来源于PubMed。
Abstract
Irritable bowel syndrome with diarrhea (IBS-D) is a common and chronic gastrointestinal disorder that is characterized by abdominal discomfort and occasional diarrhea. The pathogenesis of IBS-D is thought to be related to a combination of factors, including psychological stress, abnormal muscle contractions, and inflammation and disorder of the gut microbiome. However, there is still a lack of comprehensive analysis of the logical regulatory correlation among these factors. In this study, we found that stress induced hyperproduction of xanthine and altered the abundance and metabolic characteristics of Lactobacillus murinus in the gut. Lactobacillus murinus-derived spermidine suppressed the basal expression of type I interferon (IFN)-α in plasmacytoid dendritic cells by inhibiting the K63-linked polyubiquitination of TRAF3. The reduction in IFN-α unrestricted the contractile function of colonic smooth muscle cells, resulting in an increase in bowel movement. Our findings provided a theoretical basis for the pathological mechanism of, and new drug targets for, stress-exposed IBS-D.
Keywords: AdorA2B; Lactobacillus murinus; irritable bowel syndrome with diarrhea; spermidine; stress; type I interferon; xanthine.