Donidalorsen

丨猎药人俱乐部研究团队整理 小核酸药物经多年发展，重磅产品不断涌现。渤健与Ionis开发的Nusinersen是目前销售额最高的小核酸药物，2019-2020年全球销售额均超过20亿美元；诺华与Alnylam开发的 leqvio(Inclisiran) 是一款长效降脂药，一年仅需注射两次，开启了小核酸药物应用于常见慢性病的新篇章。根据诺华最新财报显示，leqvioQ3单季销售大卖1.98亿美金（同比120%），全年已卖超5.31亿美金（同比129%）。 不过leqvio仍在不断扩张适用边界，除了公司已计划提交用于降低低或中等ASCVD风险患者的LDL-C水平的上市申请，诺华也开展了VictORION系列研究，其中包含业内唯一一项在高危一级预防人群中探索非他汀类降脂疗法效果的研究。 在国内，Leqvio于2023年8月获国家药监局批准上市，作为饮食的辅助疗法，用于成人原发性高胆固醇血症（杂合子型家族性和非家族性）或混合型血脂异常患者的治疗。诺华Q1季报显示，国内每天新增患者超过250名，按此规模估算，Leqvio在中国的销售额接近30亿元。而随着近日国谈结束，医保落地后，将会有更多患者使用并收益。 leqvio已然成为了小核酸赛道的“璀璨新星”，而随着小核酸技术的逐渐成熟和应用的不断扩展，未来我们也期待该赛道迎来更多的“重磅药物”。本文根据国内外各调研机构的数据，统计了14款值得关注的小核酸药物，其中包括未来有望成为销售额＞10亿美元“重磅药物”的7款药物，仅供参考。 具有＞10亿美元“重磅”潜力小核酸药物 01 首次纳入医保，持续拓宽边界，leqvio“天花板”有多高？ 2024年10月31日，根据最新一次国家医保谈判结果，首次参与国家医保谈判的诺华制药研发的「英克司兰钠注射液」（Inclisiran，商品名：乐可为 Leqvio）本次定价9988元针。在谈判前，乐可为的全球市场定价为每针3250美元（约合人民币23769元），一年两针共计6500美元（约合人民币47538元），降幅达58%。 作为全球首个且唯一siRNA超长效降脂药物（慢病用药），该药注射液的给药方式是单次皮下注射，首次给药后，患者需要在3个月和每6个月时分别进行再次给药。因此，一般患者每年可能需要接受两到三针的治疗，每年的费用大约在2万到3万元人民币之间。 纳入医保显然能够助推PCSK9放量。以最早上市的安进的依洛尤单抗为例，它于2015年获批，于2021年纳入医保目录，直接从每针1300元，年费用3万多元，降到了每针300元，年费用7000元左右，降幅达77%。 依洛尤单抗虽早在2021年就突破10亿美元门槛，成为重磅级产品，但随着放量速度持续猛涨，到2023年营收已飙升至16.35亿美元。从国内市场看，据中康开思系统显示，依洛尤单抗在2023年等级医院的销售额达11.41亿元，同比上涨134.7%。 依洛尤单抗全国等级医院销售额（来源：中康开思系统） 从市场格局来看，Leqvio虽然也承受着来自依洛尤单抗、托莱西单抗等PCSK9单抗的竞争压力，但增长势头良好，诺华仍然在继续扩展Leqvio的应用边界。 今年8月28日，诺华宣布III期V-MONO研究取得了积极结果。该研究旨在评估每年两次给药的Leqvio（inclisiran，英克司兰）对比安慰剂、ezetimibe（依折麦布）治疗低、中危且未接受过降脂治疗的动脉粥样硬化性心血管疾病（ASCVD）患者的疗效和安全性。结果显示，该研究达到了主要终点，Leqvio降低了患者的低密度脂蛋白胆固醇（LDL-C）水平。公司已计划提交该药物用于降低低或中等ASCVD风险患者的LDL-C水平的上市申请。 此外，为探索Leqvio对心血管结局的潜在益处，从而扩大该药物的适用人群，诺华开展了VictORION系列研究，例如： VICTORION-1 PREVENT（V1P）研究（n=14000）：评估Leqvio对比安慰剂在高危一级预防患者中预防主要心血管不良事件的有效性和安全性； VICTORION-2 PREVENT（V2P）研究（n=17006）：评估Leqvio对比安慰剂在高危二级预防患者中预防主要心血管不良事件的有效性和安全性； VICTORION-INCEPTION研究（n=384）：评估Leqvio联合常规治疗（Usual Care）对比常规治疗降低近期出现急性冠状动脉综合征（ACS）患者的LDL-C水平的有效性和安全性； VICTORION-INCLUSION研究（n=1440）：评估Leqvio联合常规治疗对比常规治疗降低高危或已确诊ASCVD患者的LDL-C水平的有效性和安全性。 ORION-4研究（n=16124）：评估Leqvio对比安慰剂改善ASCVD患者的临床结局的有效性和安全性。 其中，V1P研究是唯一一项在高危一级预防人群中探索非他汀类降脂疗法效果的研究。ORION-4和V2P研究的结果分别有望在2026年和2027年获得数据。 根据市场调研机构GlobalData预测，Leqvio的销售额将稳步增长，到 2030年该药物的全球销售额将达到34亿美元。 02 14款值得关注的小核酸药物 1）预计年底获批：2款 Ionis：Olezarsen 作用机制:ApoC3抑制剂 适应症:家族性乳糜微粒血症综合征（FCS）2030年销售额预测：3.99亿美元（根据cortellis） Olezarsen是一种ASO疗法，能够抑制机体产生ApoC3。ApoC3是一种在肝脏中产生、调节血液中甘油三酯（TG）代谢的蛋白。Balance临床3期试验结果显示，FCS患者每四周接受一次80 mg olezarsen皮下注射治疗，患者的TG水平持续显著降低（经安慰剂调整），治疗6个月降幅为44%；治疗第6个月到第12个月期间降低59%；经安慰剂调整后的apoC3降幅在接受治疗6个月时为74%，在12个月时为81%。美国FDA已接受olezarsen用于治疗FCS成人患者的新药申请（NDA）并授予优先审评资格，预计在2024年12月19日前完成审评。Ionis还计划在今年在欧盟和加拿大递交监管申请。根据cortellis预测，Olezarsen 2030年销售额有望达到3.99亿美元。 赛诺菲/Alnylam：Fitusiran 作用机制:抗凝血酶III抑制剂 适应症:血友病A与血友病B2030年销售额预测：2.98亿美元（根据cortellis） Fitusiran是一款小干扰RNA（siRNA）疗法，旨在作为体内产生/未产生凝血因子抑制物的血友病A或血友病B患者的预防性治疗。Fitusiran可降低抗凝血酶水平，从而促进凝血酶生成，重新平衡止血功能并预防出血。在两项3期临床研究中，与对照组相比，每月一次皮下注射fitusiran预防治疗组患者的年化出血率降低了90%。Fitusiran注射液的上市申请已于2024年5月获得中国国家药监局（NMPA）受理，并于6月获得美国FDA受理。根据cortellis预测，Fitusiran 2030年销售额有望达到2.98亿美元。 2）销售预测＞10亿美元的潜力重磅药物：7款Arrowhead：ARO-ANG3 作用机制：ANGPTL3抑制剂 适应症：血脂异常、家族性高胆固醇血症（FH）、高甘油三酯血症（HTG） 销售峰值预测：45亿美元（根据Zacks Investment Research） ARO-ANG3是公司开发的一款靶向血管生成素样蛋白3（ANGPTL3）的RNAi疗法，被开发用于治疗血脂异常、家族性高胆固醇血症（FH）、高甘油三酯血症（HTG）。2024年5月在《新英格兰医学杂志》上发表的一项2期试验评估了zodasiran治疗混合性高脂血症的效果。结果显示Zodasiran在混合型高脂血症患者中显示出显著降低TG、非HDL-C、载脂蛋白B和LDL-C水平的效果。其疗效呈现出剂量依赖性，200 mg剂量组的疗效最为显著。此外，Zodasiran治疗还与肝脏脂肪含量的减少相关。Zodasiran的整体安全性良好，未发现与药物相关的严重不良事件，但需注意在已存在糖尿病的患者中可能出现的糖化血红蛋白水平升高问题。 不过，根据Firece网站的最新报道，在资金流的压力下，Arrowhead Pharmaceuticals正在面临对两款心脏代谢疾病候选药物进行抉择，他们暂时需要放弃zodasiran，以便能全力支持另一个候选药物plzasiran的开发。不过，虽然Arrowhead计划倾全司之力在2025年将plzasiran推向市场，但仍希望能找到一个合作伙伴，来开发已经失去优先地位的zodasiran。 Ionis/诺华：Pelacarsen 作用机制：LP(a)抑制剂 适应症:主动脉瓣狭窄;心血管疾病;高脂蛋白血症2030年销售额预测：25.78亿美元（根据cortellis） Pelacarsen是一款反义寡核苷酸（ASO）药物，靶向Apo(a) mRNA，抑制其翻译成脂蛋白(a)的蛋白。其原研是IONIS，2019年和Norvartis达成合作协议共同开发。2023年初，Royalty Pharma买入IONIS持有的Pelacarsen的剩余权益的25%。目前Pelacarsen已完成I期与II期的临床研究。II期研究表明，Pelacarsen 20 mg QW降低Lp(a)最高可达80%，80mg/月的给药剂量可使98%的患者Lp(a)水平降至50 mg/dL以下。 III期试验（NCT04023552）主要观察其对心血管疾病患者的主要心血管事件的影响，该临床试验正在进行中。Pelacarsen将有望成为首个靶向强效降低脂蛋白(a)并带来心血管获益的药物。根据cortellis预测，Pelacarsen2030年销售额有望达到25.78亿美元。 Ionis/GSK：Bepirovirsen 作用机制：抑制HBsAg 蛋白表达，TLR8刺激免疫应答 适应症：乙肝销售峰值预测：25亿美元（根据GSK）Bepirovirsen (GSK3228836，GSK836) 是Ionis Pharmaceuticals 和 葛兰素史克（GSK）合作开发用于慢性乙型肝炎治疗的一款具有三重作用机制的非结合型反义寡核苷酸（ASO），靶向所有HBV RNA，包括HBV信使RNA和前基因组RNA，目前正在进行3期临床试验。该药物是目前唯一一款处在 phase III 期临床试验阶段的单药，与口服的核苷（酸）类似物联合用药时具有实现有临床意义的功能性治愈潜能。公司已公布phase IIb 期试验 B-Clear 和 B-Sure 的研究数据，这两项试验评估了 Bepirovirsen 对慢性乙型肝炎患者的疗效、安全性和反应持久性。一项确认疗效的III期临床试验B-Well正在进行中。在B-Clear试验中，总计457名慢性乙肝患者接受了不同剂量的bepirovirsen的治疗，其中大约一半同时在接受核苷/核苷酸类似物（NA）治疗，另一半没有接受NA治疗。研究结果显示，接受300毫克bepirovirsen治疗24周后，大约有26%~29%的患者的乙肝表面抗原和乙肝病毒DNA水平都低于可检测的最低水平。为期24周的随访观察显示，停药24周后，9%~10%的患者仍然维持乙肝表面抗原和乙肝病毒DNA水平检测不到的状态。在这些停药24周仍然维持乙肝表面抗原和乙肝病毒DNA水平检测不到的患者中，一半患者显示免疫系统被激活。目前，Bepirovirsen已相继获得中美日三国的 “快速通道”，这将大大缩短药物上市时间。 Ionis/渤健：BIIB080 作用机制：tau蛋白抑制剂 适应症：阿尔兹海默症 2030年销售额预测：20亿美元（根据Morningstar） BIIB080（IONIS-MAPT）是一款在研反义寡核苷酸（ASO）疗法，是首款进入临床试验期的tau蛋白靶向治疗轻度AD的ASO药物。BIIB080通过与编码tau蛋白的mRNA结合，导致mRNA的降解和tau蛋白水平的下降。在2023年10月举办的第 16 届阿尔茨海默病临床试验(CTAD)会议上，渤健公布了BIIB080的1b期试验临床积极结果。分析显示，接受该疗法患者展现认知下降改善的趋势。根据此积极结果，渤健已启动相关CELIA临床2期试验。 根据投资机构Morningstar的预测，预计BIIB080 的获批概率为30%，到 2030 年的概率加权销售额为 20 亿美元。 Alnylam/罗氏：zilebesiran 作用机制：血管紧张素原配体抑制剂 适应症:高血压销售峰值预测：19亿美元（根据Cortellis） Zilebesiran（ALN-AGT01）是一种皮下给药、靶向血管紧张素原（AGT）的在研RNAi治疗药物。AGT是肾素-血管紧张素-醛固酮系统（RAAS）中最上游的靶点，该级联反应已被证实在血压调节中发挥作用，其抑制具有明确的抗高血压作用。 zilebesiran的KARDIA-2临床研究数据表明：对于高血压控制不佳患者，zilebesiran与标准降压药联用，可带来额外的降压获益，降压效果可维持6个月。KARDIA-3 Ⅱ期研究(NCT06272487)已经启动，将评估zilebesiran对经2~4个标准降压药物治疗后血压仍不能有效控制的高血压患者的有效性和安全性，这些高血压患者同时存在慢性肾功能不全，或心血管疾病高危风险。Cortellis预测Zilebesiran 的潜在峰值销售额将达到 19 亿美元。 Ultragenyx：GTX-102 作用机制：UBE3A抑制剂 适应症:天使综合征2030年销售额预测：16.13亿美元（根据Cortellis） GTX-102是一款鞘内给药的在研反义寡核苷酸新药，旨在靶向和抑制UBE3A反义（UBE3A-AS）转录本的表达，同时激活神经元细胞中父系UBE3A的等位基因表达，产生患者体内所缺失的关键蛋白产物。该药物用于治疗天使综合征，这是由UBE3A基因缺失或突变导致的罕见性神经遗传疾病，患者会出现发育迟缓，平衡障碍、运动障碍以及癫痫发作等情况，大多不会说话。天使综合征经常被误诊为自闭症或脑瘫。目前尚未批准用于该疾病的疗法上市。 4月15日，Ultragenyx Pharmaceutical宣布了其用于治疗天使综合征（Angelman syndrome）的在研疗法GTX-102在1/2期临床试验中取得积极数据：接受GTX-102治疗的扩展队列A和B的患者，在第170天显示出具有临床意义的多领域功能改善。部分剂量递增队列患者在第758天显示出长期和持续的临床益处，远超过自然历史数据。根据cortellis预测，GTX-102在2030年销售额有望达到16.13亿美元。 再生元/Alnylam：Cemdisiran 作用机制：C5抑制剂 适应症:IgA肾病2030年销售额预测：11.67亿美元（根据Cortellis） Cemdisiran为一款再生元与Alnylam联合开发的C5靶向siRNA疗法。在IgA肾病中，补体系统的异常激活会导致过敏毒素C3a和C5a以及攻膜复合物C5b-9的过量产生，这些物质会损害肾小球结构。Cemdisiran通过精准靶向补体途径的关键成分——C5补体蛋白，有效阻断补体通路的激活，进而降低对肾脏的损害，并显著减少蛋白尿的排泄。 Cemdisiran 治疗IgA肾病的II期试验结果表明其可抑制肝脏中C5的产生，并能显著降低IgA肾病患者的尿蛋白水平。2024年8月13日，III期临床试验（R3918-MG-2018）完成首例给药。根据cortellis预测，cemdisiran2030年销售额有望达到11.67亿美元。 3）其他值得重点关注的重磅「活跃」药物 Arrowhead：plozasiran 作用机制：ApoC3抑制剂 适应症:I型高脂蛋白血症;高甘油三酯血症;脂质代谢紊乱2030年销售额预测：6.67亿美元（根据Cortellis） Plozasiran（ARO-APOC3）是Arrowhead公司首款研究性RNA干扰(RNAi)治疗药物，是一款靶向APOC3基因的潜在“first-in-class”RNAi疗法。Plozasiran治疗目标是通过下调APOC3降低甘油三酯水平，并将脂质恢复到更正常的水平。在多项临床研究中，plozasiran显示可降低FCS、严重高甘油三酯血症（SHTG）和混合性高脂血症患者的甘油三酯和多种致动脉粥样硬化脂蛋白。 2024年9月，Arrowhead Pharmaceuticals公布plozasiran用于治疗家族性乳糜微粒血症综合征（FCS）患者的3期PALISADE研究结果。分析显示，试验成功达到主要终点和所有关键次要终点，plozasiran使患者的甘油三酯（TG）、载脂蛋白C-III（APOC3）水平显著下降，并使急性胰腺炎（AP）的发病率显著降低。基于该试验积极数据，Arrowhead打算在2024年底前向美国FDA提交plozasiran的新药申请，并计划随后向其他全球监管机构寻求批准。 Wave Life Sciences：WVE-003 作用机制：HTT抑制剂 适应症：亨廷顿病 2030年销售额预测：4.52亿美元（根据Cortellis） 亨廷顿病是由于编码亨廷顿蛋白的HTT基因上出现CAG扩增，导致生成的亨廷顿蛋白突变体（mHTT）产生神经毒性。野生型亨廷顿蛋白对正常神经元功能也具有重要作用，因此HTT基因的突变不但增加了mHTT的产生，也降低了正常蛋白的水平，导致神经突触功能失常、细胞死亡和神经退行性病变。WWE-003是一款潜在“first-in-class”等位基因特异性RNAi疗法，它选择性结合表达mHTT的mRNA，在降低突变蛋白表达的同时，不影响野生型蛋白的表达。 6月26日，Wave Life Sciences宣布，在研疗法WVE-003在治疗亨廷顿病（HD）的1b/2a期临床试验SELECT-HD中取得了积极成果。数据显示，WVE-003总体安全性和耐受性良好，没有报告严重不良事件（SAEs），脑室体积与自然历史一致。在28周评估期间观察到WVE-003组患者显著的mHTT蛋白水平降低，支持每季度或更少频率的给药。在28周评估期间，wtHTT蛋白水平得到维持，验证了等位基因选择性沉默。此外，与安慰剂相比，wtHTT蛋白水平显著增加。 Ionis：donidalorsen 作用机制：激肽释放酶（PKK）抑制剂 适应症:遗传性血管性水肿（HAE）2030年销售额预测：3.90亿美元（根据Cortellis） Donidalorsen是一款潜在“first-in-class”的RNA反义寡核苷酸配体偶联（LICA）药物，旨在精确靶向以沉默前激肽释放酶（PKK）的表达，中断导致遗传性血管性水肿（HAE）发作的通路。PKK在激活与HAE急性发作相关的炎症介质中起重要作用。通过沉默PKK的产生，donidalorsen可能是治疗HAE的有效预防方法。IONIS授权日本大冢制药负责亚太地区和欧洲的特定区域开发、监管备案和商业化。 今年6月，Ionis公布了donidalorsen在治疗遗传性血管性水肿（HAE）的3期临床试验OASIS-HAE和OASISplus中的积极成果：donidalorsen以每月和每两月的给药方案进行治疗，一年后患者的HAE发作频率显著且持续降低超过90%；从其他预防性治疗转换至donidalorsen治疗的患者，其月均HAE发作率相较于基线进一步降低了62%，其中84%的患者更倾向于使用donidalorsen。Ionis 计划今年向美国食品药品管理局（FDA）提交新药申请，如获批准，将在美国独立上市donidalorsen。 PepGen：PGN-EDO51 作用机制：外显子51跳跃疗法 适应症:DMD 2030年销售额预测：2.79亿美元（根据Cortellis） PGN-ED051专门设计用于跳过外显子51，能够帮助大约13%的DMD患者。PepGen认为与现有药物相比，PGN-ED051的不同之处在于它使用了该公司专有的增强递送寡核苷酸技术，将药物直接递送至肌肉细胞，可以更有效地跳过外显子：与所有已获批准药物和已知开发中的候选药物相比，根据公开的跨研究数据，PGN-EDO51在灵长类动物的骨骼肌和隔膜中实现了最高的第51外显子跳跃水平，并且此效果在安全的剂量范围内获得。 今年8月，PepGen发布了其新式候选药物PGN-EDO51的积极临床数据：5mg/kg剂量的PGN-EDO51在三个月给药后，能使患者的外显子跳跃水平高于类似PMO剂量水平的其他寡核苷酸疗法。同时，此药物在肌肉调整后的肌营养不良蛋白水平上，也表现出较基线的显著增长。该公司计划在今后的试验中继续评估PGN-EDO51的疗效，并将着力于推动其二期试验CONNECT2-EDO51的开展。他们期待在更高剂量（10 mg/kg）中观察到更高水平的肌营养不良蛋白产生。 Idera Pharmaceuticals：Tilsotolimod 作用机制：TLR9激动剂 适应症：黑色素瘤2030年销售额预测：/ 在先天性免疫反应的过程中，TLR9扮演着举足轻重的角色，尤其在向肿瘤组织募集T细胞的过程中发挥着关键作用。这一靶点深藏于细胞内部，这使得TLR9激动剂的开发面临重重挑战，以寡核苷酸为药物形式的TLR9激动剂正逐渐成为研究热点。 Tilsotolimod 是一种在研合成 Toll 样受体 9 (TLR9) 激动剂，由Idera Pharmaceuticals开发，获得了美国FDA的快速通道，联合Ipilimumab用于治疗抗PD-1抗体难治性黑色素瘤，以及孤儿药物资格指定用于治疗IIb-IV期黑色素瘤。在I/II期临床试验中，ORR为22%，疾病控制率为71%，中位总生存期(OS)为21个月。目前处于黑色素瘤的关键3期临床（NCT03445533）阶段。 参考资料：医药魔方Info、摩熵医药、新康界、细胞基因治疗前沿 *文章封面首图及配图，版权归版权所有人所有。若版权者认为其作品不宜供大家浏览或不应无偿使用，请及时联系我们，本平台将立即更正。 SHINE CONSULTANT 上海士研管理咨询有限公司成立于2005年，致力于为组织领导者提供沟通交流与专家智库平台。通过二十年沉淀与积累，覆盖了金融与投资、交通与运输、消费与文旅、医药与医疗、能源与资源、高科与电信、公用与政府等产业领域，服务着全球500强和万余家领导型企业，汇聚了百万余名机构决策者，并与千余家产业权威机构建立了战略伙伴关系。士研咨询秉承专业立身的理念发展队伍，现拥有百余名专业的资深人员，核心管理团队都具有十五年以上的专业经验。

WAINUATM U.S. launch progressing well; approved in UK; positive CHMP opinion Olezarsen FCS PDUFA December 19, 2024 Donidalorsen HAE PDUFA August 21, 2025; EU regulatory submission in process On track to achieve 2024 P&L financial guidance; increased 2024 cash guidance CARLSBAD, Calif., Nov. 6, 2024 /PRNewswire/ -- Ionis Pharmaceuticals, Inc. (Nasdaq: IONS) (the "Company") today reported financial results for the third quarter of 2024. "Today, we stand on the cusp of a new era for Ionis, with our first co-commercialization launch proceeding well with WAINUA, our first planned independent launch fast approaching and continued strong progress across our rich pipeline. With an upcoming December FDA action date, we are ready to independently bring olezarsen to people with familial chylomicronemia syndrome, a serious rare disease with no approved treatments in the U.S. We are similarly well positioned for our second independent launch for donidalorsen, which we believe could become a preferred treatment choice for people with hereditary angioedema, with an FDA action date of August 21, 2025," said Brett P. Monia, Ph.D., chief executive officer of Ionis. "In parallel, we are making great progress across the rest of our rich Phase 3 pipeline. We expect Phase 3 results supporting olezarsen's second indication in severe hypertriglyceridemia and pelacarsen in Lp(a)-driven cardiovascular disease next year, as well as Phase 3 results supporting eplontersen's second indication in ATTR cardiomyopathy in the second half of 2026. We are also advancing our next wave of potentially transformational wholly owned medicines, including ION582 for Angelman syndrome, which we expect to enter Phase 3 development in the first half of next year following our positive end of Phase 2 discussion with the FDA. Our recent achievements, together with our advancing and expanding pipeline, position Ionis to deliver on our goal to bring a steady cadence of transformational medicines to people with serious diseases." Third Quarter 2024 Summary Financial Results(1): Financial Highlights Revenue for the three and nine months ended September 30, 2024 decreased by 7% and increased by 3% compared to the same periods last year, respectively. Ionis continued to generate revenue from diverse sources, including a new source of royalty revenue with the launch of WAINUA in the U.S in the first quarter Operating expenses for the three and nine months ended September 30, 2024 increased as planned compared to the same periods last year, excluding certain one-time costs in 2023, reflecting continued investments in late-stage development, including WAINUA for ATTR cardiomyopathy (ATTR-CM) and olezarsen for severe hypertriglyceridemia (sHTG), and commercialization efforts for WAINUA, olezarsen and donidalorsen Reaffirmed 2024 P&L financial guidance, increased cash guidance to $2.2 billion reflecting proceeds from equity offering Recent Marketed Medicines Highlights WAINUA (WAINZUA in Europe) for the treatment of adults with polyneuropathy of hereditary transthyretin-mediated amyloidosis (ATTRv-PN) achieved multiple commercial and regulatory milestones: Generated sales of $23 million and $44 million resulting in royalty revenue of $5 million and $10 million in the three and nine months ended September 30, 2024, respectively Received positive Committee for Medicinal Products for Human Use (CHMP) opinion from European Medicines Agency (EMA) for the treatment of hereditary transthyretin-mediated amyloidosis in adult patients with stage 1 or stage 2 polyneuropathy Approved in UK by the Medicines and Healthcare products Regulatory Agency (MHRA) with an accelerated National Institute for Health and Care Excellence (NICE) recommendation; earning $30 million from AstraZeneca Launch underway in Canada, following approval and reimbursement from Health Canada SPINRAZA® (nusinersen) for the treatment of spinal muscular atrophy (SMA) generated global sales of $381 million and $1.2 billion resulting in royalty revenue of $57 million and $152 million in the three and nine months ended September 30, 2024, respectively Positive Phase 2/3 DEVOTE study data presented from higher dose nusinersen; global regulatory applications planned QALSODY® (tofersen) granted marketing approval in China for the treatment of SOD1-ALS Recent Late-Stage Pipeline Highlights Olezarsen positioned to potentially treat two patient populations with urgent unmet need, familial chylomicronemia syndrome (FCS) and severe hypertriglyceridemia (sHTG): NDA for patients with FCS under FDA Priority Review with a PDUFA date of December 19, 2024 Marketing authorization application (MAA) under regulatory review by the EMA Ongoing pivotal development program for sHTG on track for data in H2:2025 Donidalorsen Phase 3 data position it to potentially launch next year as the first RNA-targeted prophylactic treatment for people with hereditary angioedema (HAE): FDA accepted the NDA for patients with HAE with a PDUFA date of August 21, 2025; Otsuka, Europe and Asia Pacific partner, preparing to submit MAA Presented positive Phase 2 open label extension (OLE) study data in patients treated up to three years with every four weeks or every eight weeks dosing Zilganersen Phase 3 study fully enrolled as a potential treatment for Alexander disease; on track for data in 2025 Granted Fast Track designation by the FDA ION582 achieved important clinical and regulatory milestones enabling initiation of Phase 3 development in Angelman syndrome (AS) in H1:2025: Presented positive Phase 1/2 data in patients with AS at Angelman Syndrome Foundation (ASF) Family Conference Completed positive End-of-Phase 2 discussion with FDA, included alignment on Phase 3 design Reported positive data from the Phase 2 study of IONIS-FB-LRx in patients with immunoglobulin A nephropathy (IgAN); Roche continues to advance IONIS-FB-LRx in the Phase 3 IMAGINATION study Recent Other Pipeline Updates Sapablursen for the treatment of polycythemia vera granted orphan drug designation by FDA; enrollment complete in Phase 2 IMPRSSION study with data expected in 2025 IONIS-MAPTRx (BIIB080) enrollment complete in Phase 2 CELIA study in patients with early Alzheimer's disease (AD); data expected in 2026 Initiated first in human studies with multiple medicines from neurological disease pipeline: Phase 1/2 Orbit study of ION356 (PLP1) in patients with Pelizaeus-Merzbacher disease (PMD) Phase 1/2 HERO study of ION269 (APP), for the potential treatment of Alzheimer's disease (AD), which is initially being evaluated in patients with Down syndrome (DS) who have a genetic risk for developing AD Phase 1/2 ATTUNE study of ION440 (MECP2) in patients with MECP2 duplication syndrome Third Quarter 2024 Financial Results "This year has been marked by strong delivery on our pipeline and business goals, which position Ionis to deliver on our vision of bringing a steady cadence of innovative medicines to patients in need. Fully realizing these significant opportunities requires substantial investment. As a result, we recently executed an equity offering that extends our cash runway, enabling us to continue to invest in the numerous attractive opportunities ahead of us, including our near-term commercial launches with multi-billion-dollar revenue potential and our rich late and mid-stage pipeline," said Elizabeth L. Hougen, chief financial officer of Ionis. "Looking beyond this year, we will continue to invest in go-to-market preparations for our planned olezarsen and donidalorsen launches. Additionally, with our increased confidence in the potential of WAINUA and olezarsen to address broader patient populations, we plan to scale our capabilities in line with the significant potential of these important medicines. At the same time, we are investing in our next wave of medicines, including pre-commercialization activities and Phase 3 development for ION582 for Angelman syndrome and zilganersen for Alexander disease. We expect our investments today will position Ionis for sustainable growth for years to come." Revenue Ionis' revenue was comprised of the following: Commercial revenue for the three and nine months ended September 30, 2024 included a new source of royalty revenue with the launch of WAINUA in the U.S. in late January 2024. Ionis' commercial revenue for the three and nine months ended September 30, 2024 and 2023 also included royalties from the net sales of QALSODY, which Biogen launched in the U.S. in the second quarter of 2023 and in the EU in the second quarter of 2024. SPINRAZA product sales for the three months ended September 30, 2024 compared to the same period last year increased slightly in the U.S. and decreased outside of the U.S. primarily due to an annual order from a single country that did not recur in 2024. R&D revenue was relatively consistent for the three months ended September 30, 2024 compared to the same period last year. R&D revenue increased for the nine months ended September 30, 2024 compared to the same period last year primarily due to the amortization of upfront payments from the new collaborations with Roche and Novartis that Ionis entered into during the second half of last year. In addition, license fees increased year over year as a result of new collaborations Ionis entered into during the second quarter of 2024, including the expanded donidalorsen licensing agreement with Otsuka, which now includes the Asia-Pacific region in addition to Europe. These increases were partially offset by the decrease in WAINUA joint development revenue, which decreased as development activities relating to ATTRv-PN wound down with the launch of WAINUA for this indication. Operating Expenses Ionis' operating expenses, excluding one-time costs associated with a lease exit in the third quarter of 2023, increased for the three and nine months ended September 30, 2024 compared to the same periods in 2023, consistent with expectations. SG&A expenses increased year over year primarily due to the launch of WAINUA in the U.S. and launch preparation activities for olezarsen and donidalorsen, including establishing the field team for olezarsen in the second quarter of 2024. R&D expenses were essentially flat for the three and nine months ended September 30, 2024 compared to the same periods last year as several late-stage studies have ended. Balance Sheet As of September 30, 2024, Ionis' cash, cash equivalents and short-term investments increased to $2.5 billion compared to $2.3 billion at December 31, 2023. In September 2024, Ionis issued 11.5 million shares of its common stock at a public offering price of $43.50 per share that generated gross proceeds of $500 million, before deducting underwriting discounts and commissions and other offering expenses payable by Ionis. The Company plans to continue deploying its capital resources toward growth opportunities, and projects to end 2024 with $2.2 billion in cash, cash equivalents and short-term investments. Ionis' working capital also increased over the same period primarily due to the Company's higher cash and short-term investments balance. As a result of Ionis' advancing pipeline that has delivered several positive data readouts, Ionis expects to make increased investments in the years ahead with the goal to realize the value of these opportunities, with a focus on its wholly owned late-stage and next wave of innovative medicines. Webcast Management will host a conference call and webcast to discuss Ionis' third quarter 2024 results at 11:30 a.m. Eastern time on Wednesday, November 6, 2024. Interested parties may access the webcast here. A webcast replay will be available for a limited time at the same address. To access the Company's third quarter 2024 earnings slides click here. For more information about SPINRAZA and QALSODY, visit and , respectively. QALSODY is approved under accelerated approval based on reduction in plasma neurofilament light chain (NfL) observed in patients treated with QALSODY. Continued approval may be contingent upon verification of clinical benefit in confirmatory trial(s). INDICATION for WAINUA™ (eplontersen) WAINUA injection, for subcutaneous use, 45 mg is indicated for the treatment of the polyneuropathy of hereditary transthyretin-mediated amyloidosis in adults. IMPORTANT SAFETY INFORMATION for WAINUA™ (eplontersen) WARNINGS AND PRECAUTIONS Reduced Serum Vitamin A Levels and Recommended Supplementation WAINUA leads to a decrease in serum vitamin A levels. Supplement with recommended daily allowance of vitamin A. Refer patient to an ophthalmologist if ocular symptoms suggestive of vitamin A deficiency occur. ADVERSE REACTIONS Most common adverse reactions (≥9% in WAINUA-treated patients) were vitamin A decreased (15%) and vomiting (9%). Please see link to U.S. Full Prescribing Information for WAINUA. About Ionis Pharmaceuticals, Inc. For three decades, Ionis has invented medicines that bring better futures to people with serious diseases. Ionis currently has five marketed medicines and a leading pipeline in neurology, cardiology, and other areas of high patient need. As the pioneer in RNA-targeted medicines, Ionis continues to drive innovation in RNA therapies in addition to advancing new approaches in gene editing. A deep understanding of disease biology and industry-leading technology propels our work, coupled with a passion and urgency to deliver life-changing advances for patients. To learn more about Ionis, visit Ionis.com and follow us on X (Twitter), LinkedIn and Instagram. Ionis' Forward-looking Statement This press release includes forward-looking statements regarding Ionis' business, financial guidance and the therapeutic and commercial potential of our commercial medicines, additional medicines in development and technologies. Any statement describing Ionis' goals, expectations, financial or other projections, intentions or beliefs is a forward-looking statement and should be considered an at-risk statement. Such statements are subject to certain risks and uncertainties including those inherent in the process of discovering, developing and commercializing medicines that are safe and effective for use as human therapeutics, and in the endeavor of building a business around such medicines. Ionis' forward-looking statements also involve assumptions that, if they never materialize or prove correct, could cause its results to differ materially from those expressed or implied by such forward-looking statements. Although Ionis' forward-looking statements reflect the good faith judgment of its management, these statements are based only on facts and factors currently known by Ionis. Except as required by law, we undertake no obligation to update any forward-looking statements for any reason. As a result, you are cautioned not to rely on these forward-looking statements. These and other risks concerning Ionis' programs are described in additional detail in Ionis' annual report on Form 10-K for the year ended December 31, 2023, and most recent Form 10-Q, which are on file with the Securities and Exchange Commission. Copies of these and other documents are available from the Company. In this press release, unless the context requires otherwise, "Ionis," "Company," "we," "our" and "us" all refer to Ionis Pharmaceuticals and its subsidiaries. Ionis Pharmaceuticals® is a registered trademark of Ionis Pharmaceuticals, Inc. Akcea Therapeutics® is a registered trademark of Akcea Therapeutics, Inc. TEGSEDI® is a registered trademark of Akcea Therapeutics, Inc. WAYLIVRA® is a registered trademark of Akcea Therapeutics, Inc. SPINRAZA® and QALSODY® are registered trademarks of Biogen. WAINUATM is a registered trademark of the AstraZeneca group of companies. Ionis Investor Contact: D. Wade Walke, Ph.DD. [email protected] 760-603-2331 Ionis Media Contact: Hayley Soffer [email protected] 760-603-4679 Reconciliation of GAAP to Non-GAAP Basis As illustrated in the Selected Financial Information in this press release, non-GAAP operating expenses, non-GAAP loss from operations, and non-GAAP net loss were adjusted from GAAP to exclude compensation expense related to equity awards and the related tax effects. Compensation expense related to equity awards are non-cash. These measures are provided as supplementary information and are not a substitute for financial measures calculated in accordance with GAAP. Ionis reports these non-GAAP results to better enable financial statement users to assess and compare its historical performance and project its future operating results and cash flows. Further, the presentation of Ionis' non-GAAP results is consistent with how Ionis' management internally evaluates the performance of its operations. 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