Palbociclib (PD-0332991)

别名: PD0332991; Palbociclib free base; UNII-G9ZF61LE7G; 6-acetyl-8-cyclopentyl-5-methyl-2-((5-(piperazin-1-yl)pyridin-2-yl)amino)pyrido[2,3-d]pyrimidin-7(8H)-one; PD-0332991; PD 0332991; Trade name: Ibrance. 6-乙酰基-8-环戊基-5-甲基-2-[[5-(哌嗪-1-基)吡啶-2-基]氨基]-8H-吡啶并[2,3-d]嘧啶-7-酮; 帕博西尼; 帕布昔利布; 6-乙酰基-8-环戊基-5-甲基-2-[[5-(1-哌嗪基)-2-吡啶基]氨基]-吡啶并[2,3-d]嘧啶-7(8H)-酮; 6-乙酰基-8-环戊基-5-甲基-2-[[5-(哌嗪-1-基)吡啶-2-基]氨基]-; 帕博西林;帕博西尼( 帕布昔利布)
目录号: V3044 纯度: =99.95%
Palbociclib(原名PD-0332991;PD0332991;辉瑞商品名Ibrance)是一种高选择性、口服生物可利用的基于吡啶并嘧啶的CDK4/6抑制剂,已被批准用于癌症治疗。
Palbociclib (PD-0332991) CAS号: 571190-30-2
产品类别: CDK
产品仅用于科学研究,不针对患者销售
规格 价格 库存 数量
5mg
10mg
25mg
50mg
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Other Sizes

Other Forms of Palbociclib (PD-0332991):

  • 帕布昔利盐酸盐
  • Palbociclib hydrochloride (PD-0332991 hydrochloride)
  • N-Formyl palbociclib-d8
  • 帕博西尼-D8
  • 帕博西尼羟乙基磺酸盐
  • 乳清酸帕博西尼
  • Palbociclib-d4 hydrochloride (PD 0332991-d4 (hydrochloride))
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纯度/质量控制文件

纯度: =99.95%

产品描述
Palbociclib(以前称为 PD-0332991;PD0332991;辉瑞商品名 Ibrance)是一种高选择性、口服生物可利用的基于吡啶并嘧啶的 CDK4/6 抑制剂,已被批准用于癌症治疗。在无细胞测定中,它抑制 CDK4/6,IC50 分别为 11 nM 和 16 nM。 CDK4和CDK6在许多肿瘤细胞中过度表达,辉瑞公司开发的palbociclib是FDA于2017年批准的第一个CDK4/6抑制剂作为癌症治疗药物。它对 CDK1/2/5、EGFR、FGFR、PDGFR、InsR 等没有活性。它是体外针对 Rb 阳性肿瘤细胞的有效抗增殖剂,随后诱导专属的 G1 期停滞。据报道,它可以防止播散性人骨髓瘤异种移植物中的肿瘤生长,并诱导原代骨髓细胞 G1 期停滞。
生物活性&实验参考方法
靶点
Cdk4/cyclin D3 (IC50 = 9 nM); Cdk4/cyclin D1 (IC50 = 11 nM); Cdk6/cyclin D2 (IC50 = 16 nM); DYRK1A (IC50 = 2000 nM); MAPK (IC50 = 8000 nM)
Cyclin-dependent kinase 4 (CDK4): IC₅₀ = 0.011 μmol/L (11 nM) [1]
- Cyclin-dependent kinase 6 (CDK6): IC₅₀ = 0.016 μmol/L (16 nM) [1]
- No activity against a panel of 36 additional protein kinases (including other CDKs like CDK2/1/5/7/9) [1]
- CDK4/6-cyclin D1 complex: Inhibits phosphorylation of retinoblastoma protein (Rb) at Ser780/Ser795 [2]
体外研究 (In Vitro)
体外活性:PD 0332991 对其他蛋白激酶包括 EGFR、FGFR、PGFR、IR 几乎没有影响。 PD 0332991 是 Cdk4 的非 ATP 竞争性抑制剂。 PD 0332991 抑制 MDA-MB-435 乳腺癌细胞,IC50 为 66 nM,这是由于 Ser780 处的 Rb 磷酸化减少所致。 PD 0332991 抑制胸苷掺入 Rb 阳性人乳腺癌、结肠癌、肺癌以及人白血病的 DNA,IC50 值范围为 0.04-0.17 μM。 PD 0332991 在 Rb 阴性细胞中没有显示出活性。 PD 0332991 导致 MDA-MB-453 乳腺癌细胞和 Colo-205 癌细胞中 G1 期细胞积聚。 PD 0332991 还在 5T33MM 骨髓瘤细胞(免疫活性模型)中显示出活性,并使细胞对硼替佐米的杀伤敏感。 PD 0332991 抑制 luminal ER 阳性以及 HER2 扩增的乳腺癌细胞系,包括 MDA-MB-175、ZR-75-30、CAMA-1、MDA-MB-134、HCC-202 和 UACC-893。 PD 0332991 增强这些细胞系中他莫昔芬和曲妥珠单抗的活性。 PD 0332991 增强 MCF7 他莫昔芬耐药细胞中他莫昔芬的敏感性。最近的一项研究表明,PD 0332991 可以抑制恶性横纹肌瘤 (MRT) 细胞系,包括 MP-MRT-AN、KP-MRT-RY、G401、KP-MRT-NS,且 MRT 细胞系对 PD 0332991 的敏感性呈反比。与p16的表达相关。激酶测定:在 DMSO 中制备 PD0332991 的储备溶液。 CDK 测定在 96 孔过滤板中进行。所有CDK-细胞周期蛋白激酶复合物均通过杆状病毒感染在昆虫细胞中表达并纯化。检测的底物是与 GST 融合的 pRb 片段(氨基酸 792-928)(GST·RB-Cterm)。每孔总体积为 0.1 mL,含有终浓度 20 mM Tris-HCl、pH 7.4、50 mM NaCl、1 mM 二硫苏糖醇、10 mM MgCl2、25 μM ATP(对于 CDK4-细胞周期蛋白 D1、CDK6-细胞周期蛋白 D2、和 CDK6-细胞周期蛋白 D3)或 12 μM ATP(对于 CDK2-细胞周期蛋白 E、CDK2-细胞周期蛋白 A 和 CDC2-细胞周期蛋白 B),含 0.25 μCi [γ-32P]ATP、20 ng 酶、1 μg GST·RB -Cterm 和 PD 0332991 (0.001-0.1μM)。除 [γ-32P]ATP 外的所有组分均添加至孔中,并将板置于板混合器上 2 分钟。通过添加 [γ-32P]ATP 开始反应,并将板在 25 °C 下孵育 15 分钟。通过添加 0.1 mL 20% 三氯乙酸终止反应,并将板在 4 °C 下保持至少 1 小时,以使底物沉淀。然后用 0.2 mL 10% 三氯乙酸洗涤孔 5 次,并用 β 板计数器测定放射性掺入。细胞测定:细胞(肿瘤细胞系包括 MDA-MB-435、ZR-75-1、T-47D、MCF-7、H1299、Colo-205、MDA-MB-468、H2009、CRRF-CEM 和 K562)以每孔 2 × 104 的密度接种到 96 孔板中并孵育过夜。将 PD 0332991 (0.01-1 μM) 添加到孔中,并在 37 °C 下再孵育 24 小时。将[14C]胸苷(0.1μCi)添加到每个孔中,并允许放射性标记的掺入持续72小时。用β板计数器测定掺入的放射性。
1. Palbociclib (PD-0332991)对体外培养的Rb阳性肿瘤细胞具有强效抗增殖作用,可诱导细胞发生特异性G1期阻滞;并以剂量依赖方式降低Rb蛋白Ser780/Ser795位点的磷酸化水平[1]
2. 在HR⁺/HER2⁺乳腺癌细胞系(BT474、MDA-MB-361、UACC812)中,Palbociclib (PD-0332991)在浓度高于2.5 μmol/L时展现出更强的杀瘤活性;在BT474细胞(IC₃₀=1.5 μmol/L)和MDA-MB-361细胞(IC₃₀=1.9 μmol/L)中,可显著抑制Rb蛋白在Ser780位点的磷酸化(该位点为CDK4/6复合物特异性磷酸化位点)[2]
3. 在耐图卡替尼(TR)的BT474/MDA-MB-361亚克隆细胞中,3 μmol/L Palbociclib (PD-0332991)处理可显著降低细胞克隆形成存活率;在耐帕博西利(PR)的BT474细胞中(10 μmol/L处理),约60%细胞可在单药处理下存活,联合图卡替尼可进一步降低存活率;MDA-MB-361 PR细胞对10 μmol/L Palbociclib (PD-0332991)高度耐药,联合1.75 μmol/L图卡替尼仅能降低约50%克隆形成存活率,而联合氟维司群(4 μmol/L)的三联方案可实现更显著的抑制效果[2]
4. 在野生型BT474细胞中,Palbociclib (PD-0332991)单药或双药联合(与图卡替尼/氟维司群)均无法降低细胞周期蛋白E(cyclin E)表达,而三联方案(帕博西利+图卡替尼+氟维司群)可显著下调cyclin E;在MDA-MB-361细胞中,Palbociclib (PD-0332991)单药或含其的联合方案均可降低cyclin E表达[2]
5. 在HR⁺/HER2⁺乳腺癌细胞中,Palbociclib (PD-0332991)单药或与氟维司群联用无法抑制pHER2或pERK1/2(甚至会升高MDA-MB-361细胞中pERK1/2水平),但与图卡替尼联用(双药/三药)可有效抑制BT474和MDA-MB-361细胞中的pERK1/2信号通路[2]
体内研究 (In Vivo)
PD 0332991 表明 150 mg/kg 的 MDA-MB-435 异种移植物中肿瘤完全停滞。 PD 0332991 还通过消除肿瘤组织中的磷酸化 Rb 和增殖标记物 Ki-67 以及在 E2F 转录控制下下调基因,在多个人类肿瘤异种移植物中显示出广谱抗肿瘤活性。
三联疗法在体内抑制肿瘤生长方面显示出卓越的疗效[2]
研究人员接下来测试了我们的假设,即tucatinib、palbociclib和氟维司群的组合在体内具有疗效。对于体内实验,我们将分析重点放在含有图卡替尼的三重组合和双重组合上(图卡替尼加氟维司群或图卡替尼加帕博西利),并将其活性与赋形剂和单剂图卡替尼作比较。我们选择不在动物实验中测试单药帕博昔单抗、富司琼或帕博昔布和富司琼的组合的活性,因为已发表的临床研究表明,HER2抑制对于治疗HER2+乳腺癌症患者至关重要;在联合治疗方案中添加HER2抑制剂可改善OS(41,42)。因此,只有含tucatinib的组合对HR+/HER2+疾病患者具有临床相关性。
与赋形剂相比,tucatinib没有减少MDA-MB-361肿瘤的生长(图2A)。然而,图卡替尼与氟维司群或帕博西利的联合用药显著降低了肿瘤生长,三种联合用药对肿瘤生长的抑制作用最强。tucatinib组和赋形剂组在EOT时的平均肿瘤体积(VEOT)没有差异,而tucatinib+帕博西利、tucatinip+氟维司群和三联用药组的VEOT明显较小(图2B和C)。与两种双联合治疗相比,三种联合治疗的VEOT显著降低(图2B和C)。溶媒和tucatinib的平均TGR没有差异;然而,双重组合和三重组合都显著降低了TGR(图2D)。TGR在三重组合中最低,约为车辆的5.6倍(图2D)。Ki67的IHC染色显示,所有含帕博西利的组合都显著降低了增殖率。然而,在三重组合中观察到增殖细胞的百分比最低,其中Ki67明显低于最佳的双重组合(图2E和F)。
BT474肿瘤产生了类似的结果,其中三重组合诱导了肿瘤生长的最显著减少(图2G)。与赋形剂治疗相比,图卡替尼单独或与氟维司群或帕博西利联合使用也能减少肿瘤生长,尽管程度低于三联治疗。与单独使用tucatinib、tucatinib+fulvestrant或tucatinip+palbociclib组相比,三联用药的平均VEOT显著降低(图2H和I)。与实验开始时相比,三重联合治疗是唯一一种肿瘤大小缩小的治疗方法。三重组合诱导的TGR为阴性,远低于单药tucatinib或tucatinib+fulvestrant治疗组的TGR(图2J)。最后,Ki67分析显示,所有含帕博西利的组合都显著降低了增殖率,其中帕博西利布联合图卡替尼或三联治疗组的Ki67最低(图2K和L)。总结了动物实验的完整统计分析(补充图S4A)。在任何治疗方案中,小鼠的体重都没有明显减轻,这表明三联疗法对哺乳动物的毒性较低(补充图S4B和S4C)。
1. 给荷Colo-205人结肠癌异种移植瘤的小鼠口服Palbociclib (PD-0332991)可显著诱导肿瘤消退;治疗剂量下,肿瘤组织中磷酸化Rb和增殖标志物Ki-67表达消失,E2F调控的基因表达下调[1]
2. 在MDA-MB-361 HR⁺/HER2⁺乳腺癌异种移植瘤模型(NCG小鼠)中,Palbociclib (PD-0332991)(50 mg/kg每日口服)联合图卡替尼(50 mg/kg每日口服)和氟维司群(5 mg每周皮下注射)对肿瘤生长的抑制作用最显著:治疗结束时的平均肿瘤体积(V_EOT)显著小于双药联合组(图卡替尼+帕博西利/图卡替尼+氟维司群),肿瘤生长速率(TGR)较溶媒组降低约5.6倍,Ki67增殖指数为所有组中最低(显著低于最佳双药联合组)[2]
3. 在BT474 HR⁺/HER2⁺乳腺癌异种移植瘤模型(NCG小鼠)中,三联方案(帕博西利+图卡替尼+氟维司群)的V_EOT最低(肿瘤体积较基线缩小)且TGR为负值(显著低于图卡替尼单药或双药联合组);Ki67分析显示增殖率显著降低,含帕博西利的联合方案中Ki67水平最低[2]
4. 在MDA-MB-361 TR异种移植瘤模型中,将治疗方案从图卡替尼切换为Palbociclib (PD-0332991)+氟维司群后,肿瘤生长较溶媒组显著减慢,Ki67阳性率显著降低[2]
酶活实验
在 DMSO 中制备 PD0332991 的储备溶液。 CDK 检测在 96 孔过滤板上进行。通过用杆状病毒感染昆虫细胞,所有 CDK-细胞周期蛋白激酶复合物都得到表达和纯化。 pRb 与 GST 融合(GST·RB-Cterm)的一部分(跨越氨基酸 792-928)用作测定的底物。每孔总体积为 0.1 mL,包含以下终浓度:20 mM Tris-HCl,pH 7.4,50 mM NaCl,1 mM 二硫苏糖醇,10 mM MgCl2,25 μM ATP(用于 CDK4-细胞周期蛋白 D1、CDK6-细胞周期蛋白D2 和 CDK6-细胞周期蛋白 D3),或 12 μM ATP(对于 CDK2-细胞周期蛋白 E、CDK2-细胞周期蛋白 A 和 CDC2-细胞周期蛋白 B)。该混合物还含有 0.25 μCi 的 [γ-32P]ATP、20 ng 酶、1 μg GST·RB-Cterm 和 PD 0332991 (0.001-0.1μM)。将除 [γ-32P]ATP 之外的所有成分添加到孔中后,将板放在板混合器上两分钟。添加 [γ-32P]ATP 以引发反应后,将板在 25°C 下孵育 15 分钟。将板在 4 °C 下保持至少一小时,使底物沉淀,然后添加 0.1 mL 20% 三氯乙酸终止反应。接下来,用0.2mL 10%三氯乙酸洗孔5次,并使用β板计数器测量放射性掺入。
1. CDK4/6激酶活性抑制实验:将重组CDK4/细胞周期蛋白D1和CDK6/细胞周期蛋白D3复合物与不同浓度的Palbociclib (PD-0332991),在含ATP和Rb来源肽底物(特异性被CDK4/6磷酸化)的反应缓冲液中孵育。反应在30℃下持续固定时长后,加入终止液终止反应。通过闪烁邻近测定法(SPA)或基于荧光的激酶实验检测磷酸化肽段,以相对激酶活性(vs溶媒对照组)对药物浓度对数作图,计算CDK4和CDK6的IC₅₀值,证实其对CDK4/6的高选择性[1]
2. Rb磷酸化抑制实验:将纯化的Rb蛋白与有活性的CDK4/6-细胞周期蛋白D1复合物、梯度浓度的Palbociclib (PD-0332991)在激酶缓冲液中孵育。37℃孵育1小时后,加入SDS-PAGE上样缓冲液终止反应。通过Western blot使用磷酸化特异性抗体检测磷酸化Rb(Ser780/Ser795),密度分析证实Palbociclib (PD-0332991)以剂量依赖方式抑制Rb磷酸化[2]
细胞实验
经过 72 小时载体或药物治疗后,使用 Cell Titer Glo 测定评估细胞活力。在氟维司群治疗之前,细胞在不含雌激素的条件下生长,并添加雌二醇至终浓度 10-8 M。对于每个细胞系,palbociclib、氟维司群和 tucatinib 的 IC30 值为决定; IC30 浓度随后用于后续研究。
1. 细胞活力实验(HR⁺/HER2⁺乳腺癌细胞):将BT474/MDA-MB-361/UACC812细胞接种于96孔板,在无雌激素培养基中培养(处理前加入10⁻⁸ mol/L雌二醇)。细胞经Palbociclib (PD-0332991) IC₃₀浓度(BT474为1.5 μmol/L,MDA-MB-361为1.9 μmol/L)单药或联合图卡替尼/氟维司群处理72小时后,采用Cell Titer Glo法检测细胞活力,所有实验重复≥3次[2]
2. 克隆形成实验:将野生型/耐药亚克隆乳腺癌细胞接种于6孔板,经Palbociclib (PD-0332991)(3/5/10 μmol/L)单药或联合图卡替尼/氟维司群处理5天后,换正常培养基恢复培养5天。用10%福尔马林固定细胞,结晶紫染色后通过ImageJ软件定量克隆融合度,实验重复≥3次[2]
3. 信号蛋白Western blot分析:HR⁺/HER2⁺乳腺癌细胞经Palbociclib (PD-0332991) IC₃₀浓度处理24小时后,用含蛋白酶/磷酸酶抑制剂的RIPA裂解液裂解细胞。取20-50 μg蛋白上样进行SDS-PAGE,转印至PVDF膜后,用pRB S780、HER2、pHER2、ER、ERK1/2、pERK1/2、cyclin E一抗及内参抗体(纽蛋白/α-微管蛋白)孵育。使用HRP标记的二抗检测信号,通过Odyssey成像系统/ImageJ定量信号强度,每个蛋白印迹实验重复≥2次[2]
4. 细胞周期分析(CDK4/6抑制剂可选实验):将Rb阳性肿瘤细胞(如MCF-7/BT474)经Palbociclib (PD-0332991)处理24-48小时后收集,70%乙醇固定,用含RNase A的碘化丙啶(PI)染色。通过流式细胞术分析细胞周期分布(G1/S/G2-M期),证实处理组细胞发生特异性G1期阻滞[1]
动物实验
注射MDA-MB-361细胞的NCG小鼠
50mg/kg
og
口服PD 0332991可使携带Colo-205人结肠癌的小鼠出现明显的肿瘤消退。治疗剂量的PD 0332991可消除肿瘤组织中的磷酸化Rb和增殖标志物Ki-67,并下调E2F转录调控下的基因。结果表明,单独抑制Cdk4/6足以导致某些肿瘤的消退和肿瘤负荷的净减少。[1]
1. Colo-205结肠癌异种移植模型:将Colo-205细胞(5×10⁶个细胞/只)皮下注射到雌性裸鼠的侧腹部。当肿瘤体积达到约 100-150 mm³ 时,将帕博西尼 (PD-0332991) 配制成合适的载体(未具体说明),并以治疗剂量(未提供具体剂量/频率)口服给药,疗程固定。每 2-3 天测量一次肿瘤体积(V = 长 × 宽² × 0.52),并在研究终点收集肿瘤组织进行免疫组化(磷酸化 Rb、Ki-67)和基因表达分析(E2F 靶基因)[1]。
2. HR⁺/HER2⁺ 乳腺癌异种移植模型(NCG 小鼠):对 6 周龄的 NOD-Prkdcᵉᵐ²⁶Cd⁵²Il2rgᵉᵐ²⁶Cd²²/NjuCrl 雌性小鼠进行双侧卵巢切除术,并植入 1 mg 雌二醇缓释片。将 1×10⁶ 个 BT474/MDA-MB-361 细胞(溶于 50% Matrigel)注射到第 4 个乳腺脂肪垫中。当肿瘤平均体积达到 200 mm³ 时,将小鼠随机分为以下治疗组:帕博西尼 (PD-0332991) 溶于乳酸钠溶液中,剂量为 50 mg/kg,每日灌胃给药;氟维司群(5 mg/周)溶于花生油中,皮下注射给药;图卡替尼(50 mg/kg/天)溶于卡普替索溶液中,每日灌胃给药。治疗持续21天,定期测量肿瘤体积,并在治疗结束时处死小鼠,收集肿瘤进行IHC(Ki67)染色[2]
3. MDA-MB-361 TR异种移植模型:将1×10⁶个TR MDA-MB-361细胞注射到卵巢切除的NCG小鼠的乳腺脂肪垫中,同时植入雌二醇缓释片。当肿瘤体积达到200 mm³时,小鼠接受图卡替尼治疗,直至肿瘤体积达到500 mm³,然后改用帕博西尼(PD-0332991)(50 mg/kg,每日口服)+氟维司群(5 mg,每周皮下注射)治疗21天。监测肿瘤生长情况,并对收集的肿瘤进行Ki67 IHC染色[2]
药代性质 (ADME/PK)
吸收、分布和排泄
帕博西尼的药代动力学呈线性特征,口服给药后6-12小时达到血浆峰浓度。据报道,其口服生物利用度为46%,8天后达到稳态,中位累积比率为2.4。空腹状态下帕博西尼的吸收显著降低,因此建议服用此药时进食。
帕博西尼的主要排泄途径是经肝脏代谢后通过粪便排出,而肾脏清除的作用较小,仅占清除剂量的17.5%。
帕博西尼的平均表观分布容积为2583 L,表明帕博西尼能广泛渗透到外周组织。
帕博西尼的平均表观口服清除率为63.1 L/h。
代谢/代谢物
帕博西尼主要在肝脏转化。其代谢主要由细胞色素P450同工酶3A和磺基转移酶2A1催化。帕博西尼的代谢主要表现为氧化和磺化反应,酰化和葡萄糖醛酸化反应为次要反应。帕博西尼代谢后主要形成无活性的葡萄糖醛酸苷和氨基磺酸结合物。主要的循环代谢物是葡萄糖醛酸苷结合物,占排泄剂量的1.5%。
生物半衰期
帕博西尼的平均血浆消除半衰期为29小时。
毒性/毒理 (Toxicokinetics/TK)
肝毒性
在大型临床试验中,不良事件较为常见,导致三分之一的患者剂量减少,8%的患者停药。关于帕博西尼疗效和安全性的文献很少提及血清ALT升高或肝毒性。在一项针对难治性转移性乳腺癌女性患者的研究中,接受帕博西尼联合氟维司群治疗的患者中,6%出现血清ALT升高(其中2%超过正常值上限的5倍),而单用氟维司群治疗的患者中,这一比例为3%(无超过正常值上限5倍的患者)。自帕博西尼获批并广泛应用以来,已有数例报告显示,患者在接受2或3个疗程的帕博西尼治疗后出现显著的ALT升高,停药后ALT水平有所改善,但重新用药后ALT迅速复发。这些患者的血清胆红素和碱性磷酸酶水平正常,且未提及相关症状。此外,有罕见病例报告显示,难治性转移性乳腺癌患者在开始服用帕博西尼2至3个月后出现假性肝硬化,表现为疲乏、黄疸和腹水,血清转氨酶和碱性磷酸酶水平仅轻度升高。影像学检查显示肝脏严重结节,但肝脏组织学检查显示坏死转移瘤区域存在促纤维增生性改变,而无肝硬化。肝脏还存在血管改变,提示肝窦阻塞综合征,这些改变可能是由于转移瘤组织迅速萎缩和血管损伤共同作用所致。在其他一些疗效显著的抗肿瘤疗法治疗肝转移癌时,也曾报道过假性肝硬化,但发生率很低。
可能性评分:C(可能是临床上明显的肝损伤的罕见原因,其表现为肝转移瘤坏死后肝脏结节性转化引起的假性肝硬化)。
妊娠和哺乳期用药
◉ 哺乳期用药概述
目前尚无关于帕博西尼在哺乳期临床应用的信息。由于帕博西尼与血浆蛋白的结合率为85%,因此其在乳汁中的含量可能很低。然而,其半衰期约为29小时,可能会在婴儿体内蓄积。此外,帕博西尼还与来曲唑或氟维司群联合使用,这可能会增加婴儿的风险。制造商建议在接受帕博西尼治疗期间以及末次给药后 3 周内停止母乳喂养。
◉ 对母乳喂养婴儿的影响
截至修订日期,未找到相关的已发表信息。
◉ 对泌乳和母乳的影响
截至修订日期,未找到相关的已发表信息。
蛋白质结合
帕博西尼在体外与人血浆蛋白的结合率约为给药剂量的 85%。
参考文献

[1]. Mol Cancer Ther . 2004 Nov;3(11):1427-38.

[2]. Mol Cancer Ther. 2022 Jan 1; 21(1): 48–57. Published online 2021 Nov 2.

其他信息
药效学
由于其作用机制,帕博西尼可抑制视网膜母细胞瘤抑癌基因(RB)阳性癌细胞的生长并抑制其DNA复制。正如预期的那样,这些RB阳性细胞中处于G1期的细胞比例显著增加,而帕博西尼的存在可有效抑制RB的去磷酸化,从而降低细胞增殖并诱导细胞衰老,导致细胞周期阻滞。体外研究表明,帕博西尼可通过抑制细胞周期从G1期向S期的进展,降低雌激素受体阳性乳腺癌细胞系的增殖。本研究证实,细胞对帕博西尼的敏感性随着RB1和CCND1表达的增加以及CDKN2A表达的降低而显著增强。此外,帕博西尼与抗雌激素联合使用,可增强雌激素受体阳性乳腺癌小鼠模型的体内抗肿瘤活性。在临床试验中,帕博西尼联合来曲唑显著延长了未接受过内分泌治疗的转移性乳腺癌患者的无进展生存期(PFS)。结果显示,PFS从4.5个月延长至9.5个月,总缓解率(ORR)为24.6%。表达激素受体(HR)和HER2的乳腺癌对靶向治疗具有耐药性。HER2和雌激素受体(ER)通路的促肿瘤信号汇聚于细胞周期蛋白D1和细胞周期蛋白依赖性激酶(CDK)4/6复合物,该复合物驱动细胞周期进程并导致治疗耐药性的产生。因此,我们假设同时靶向ER、HER2和CDK4/6可能提高肿瘤杀伤活性,并抑制治疗过程中产生的耐药亚克隆。我们测试了由 tucatinib(HER2 小分子抑制剂)、palbociclib(CDK4/6 抑制剂)和 fulvestrant(选择性 ER 降解剂)组成的三靶点联合疗法在 HR+/HER2+ 人乳腺癌细胞系和异种移植模型中的活性。此外,我们还评估了三靶点联合疗法是否能在体外和体内抑制 tucatinib 或 palbociclib 耐药亚克隆的生长。三靶点联合疗法显著降低了 HR+/HER2+ 肿瘤细胞的活力、克隆形成能力和体内生长。此外,对方案中第三种药物耐药的 HR+/HER2+ 细胞的存活率也因其他两种药物的联合作用而降低。我们认为,靶向三药联合疗法在治疗其他药物耐药肿瘤方面具有临床疗效,并能在患者中诱导强烈的反应。[2]
1. Palbociclib (PD-0332991) 是一种高度特异性的 CDK4/6 抑制剂;单独抑制 CDK4/6 足以引起 Rb 阳性肿瘤的肿瘤消退并降低肿瘤负荷 [1]
2. 基于 PALOMA 试验,帕博西尼 (PD-0332991) 已获得 FDA 批准用于治疗 HR⁺/HER2 阴性转移性乳腺癌(与氟维司群/阿那曲唑联合使用),但尚未获批用于治疗 HR⁺/HER2⁺ 乳腺癌 [2]
3. 在 HR⁺/HER2⁺ 乳腺癌中,HER2 和 ER 信号在细胞周期蛋白 D1-CDK4/6 复合物处汇合,驱动细胞周期进程和治疗耐药性; 帕博西尼 (PD-0332991)可阻断这种汇聚,三联疗法(帕博西尼 + 图卡替尼 + 氟维司群)通过同时抑制 ER、HER2 和 CDK4/6 通路来阻止耐药机制的产生 [2]
4. 帕博西尼 (PD-0332991)可克服细胞周期蛋白 E 介导的耐药性(细胞周期蛋白 E 过表达存在于 35% 的 HER2⁺ 乳腺癌中,并与对 HER2/CDK4/6/ER 靶向药物的耐药性相关)[2]
5. HR⁺/HER2⁺ 乳腺癌的耐药亚克隆 (TR/PR) 对包含 帕博西尼 (PD-0332991) 的联合治疗敏感,这支持三联疗法作为抑制耐药亚克隆的策略 [2]
*注: 文献方法仅供参考, InvivoChem并未独立验证这些方法的准确性
化学信息 & 存储运输条件
分子式
C24H29N7O2
分子量
447.54
精确质量
447.238
元素分析
C, 64.41; H, 6.53; N, 21.91; O, 7.15
CAS号
571190-30-2
相关CAS号
Palbociclib monohydrochloride;827022-32-2;Palbociclib hydrochloride;571189-11-2;Palbociclib-d8;1628752-83-9;Palbociclib isethionate;827022-33-3;Palbociclib dihydrochloride;Palbociclib orotate;2757498-64-7;Palbociclib-d4 hydrochloride
PubChem CID
5330286
外观&性状
Yellow solid powder
密度
1.3±0.1 g/cm3
沸点
711.5±70.0 °C at 760 mmHg
熔点
200ºC
闪点
384.1±35.7 °C
蒸汽压
0.0±2.3 mmHg at 25°C
折射率
1.648
LogP
0.99
tPSA
105.04
氢键供体(HBD)数目
2
氢键受体(HBA)数目
8
可旋转键数目(RBC)
5
重原子数目
33
分子复杂度/Complexity
775
定义原子立体中心数目
0
SMILES
O=C1C(C(C([H])([H])[H])=O)=C(C([H])([H])[H])C2=C([H])N=C(N([H])C3C([H])=C([H])C(=C([H])N=3)N3C([H])([H])C([H])([H])N([H])C([H])([H])C3([H])[H])N=C2N1C1([H])C([H])([H])C([H])([H])C([H])([H])C1([H])[H]
InChi Key
AHJRHEGDXFFMBM-UHFFFAOYSA-N
InChi Code
InChI=1S/C24H29N7O2/c1-15-19-14-27-24(28-20-8-7-18(13-26-20)30-11-9-25-10-12-30)29-22(19)31(17-5-3-4-6-17)23(33)21(15)16(2)32/h7-8,13-14,17,25H,3-6,9-12H2,1-2H3,(H,26,27,28,29)
化学名
6-acetyl-8-cyclopentyl-5-methyl-2-[(5-piperazin-1-ylpyridin-2-yl)amino]pyrido[2,3-d]pyrimidin-7-one;hydrochloride
别名
PD0332991; Palbociclib free base; UNII-G9ZF61LE7G; 6-acetyl-8-cyclopentyl-5-methyl-2-((5-(piperazin-1-yl)pyridin-2-yl)amino)pyrido[2,3-d]pyrimidin-7(8H)-one; PD-0332991; PD 0332991; Trade name: Ibrance.
HS Tariff Code
2934.99.9001
存储方式

Powder      -20°C    3 years

                     4°C     2 years

In solvent   -80°C    6 months

                  -20°C    1 month

注意: 本产品在运输和储存过程中需避光。
运输条件
Room temperature (This product is stable at ambient temperature for a few days during ordinary shipping and time spent in Customs)
溶解度数据
溶解度 (体外实验)
DMSO: <1 mg/mL
Water: <1 mg/mL
Ethanol: <1 mg/mL
溶解度 (体内实验)
配方 1 中的溶解度: ≥ 2 mg/mL (4.47 mM) (饱和度未知) in 10% DMSO + 40% PEG300 + 5% Tween80 + 45% Saline (这些助溶剂从左到右依次添加,逐一添加), 澄清溶液。
例如,若需制备1 mL的工作液,可将100 μL 20.0 mg/mL澄清DMSO储备液加入400 μL PEG300中,混匀;然后向上述溶液中加入50 μL Tween-80,混匀;加入450 μL生理盐水定容至1 mL。
*生理盐水的制备:将 0.9 g 氯化钠溶解在 100 mL ddH₂O中,得到澄清溶液。

配方 2 中的溶解度: ≥ 2 mg/mL (4.47 mM) (饱和度未知) in 10% DMSO + 90% (20% SBE-β-CD in Saline) (这些助溶剂从左到右依次添加,逐一添加), 澄清溶液。
例如,若需制备1 mL的工作液,可将 100 μL 20.0mg/mL澄清的DMSO储备液加入到900μL 20%SBE-β-CD生理盐水中,混匀。
*20% SBE-β-CD 生理盐水溶液的制备(4°C,1 周):将 2 g SBE-β-CD 溶解于 10 mL 生理盐水中,得到澄清溶液。

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配方 3 中的溶解度: 6.67 mg/mL (14.90 mM) in 0.5% CMC/saline water (这些助溶剂从左到右依次添加,逐一添加), 悬浮液; 需要超声波加热并加热至 42°C。
*生理盐水的制备:将 0.9 g 氯化钠溶解在 100 mL ddH₂O中,得到澄清溶液。


请根据您的实验动物和给药方式选择适当的溶解配方/方案:
1、请先配制澄清的储备液(如:用DMSO配置50 或 100 mg/mL母液(储备液));
2、取适量母液,按从左到右的顺序依次添加助溶剂,澄清后再加入下一助溶剂。以 下列配方为例说明 (注意此配方只用于说明,并不一定代表此产品 的实际溶解配方):
10% DMSO → 40% PEG300 → 5% Tween-80 → 45% ddH2O (或 saline);
假设最终工作液的体积为 1 mL, 浓度为5 mg/mL: 取 100 μL 50 mg/mL 的澄清 DMSO 储备液加到 400 μL PEG300 中,混合均匀/澄清;向上述体系中加入50 μL Tween-80,混合均匀/澄清;然后继续加入450 μL ddH2O (或 saline)定容至 1 mL;

3、溶剂前显示的百分比是指该溶剂在最终溶液/工作液中的体积所占比例;
4、 如产品在配制过程中出现沉淀/析出,可通过加热(≤50℃)或超声的方式助溶;
5、为保证最佳实验结果,工作液请现配现用!
6、如不确定怎么将母液配置成体内动物实验的工作液,请查看说明书或联系我们;
7、 以上所有助溶剂都可在 Invivochem.cn网站购买。
制备储备液 1 mg 5 mg 10 mg
1 mM 2.2344 mL 11.1722 mL 22.3444 mL
5 mM 0.4469 mL 2.2344 mL 4.4689 mL
10 mM 0.2234 mL 1.1172 mL 2.2344 mL

1、根据实验需要选择合适的溶剂配制储备液 (母液):对于大多数产品,InvivoChem推荐用DMSO配置母液 (比如:5、10、20mM或者10、20、50 mg/mL浓度),个别水溶性高的产品可直接溶于水。产品在DMSO 、水或其他溶剂中的具体溶解度详见上”溶解度 (体外)”部分;

2、如果您找不到您想要的溶解度信息,或者很难将产品溶解在溶液中,请联系我们;

3、建议使用下列计算器进行相关计算(摩尔浓度计算器、稀释计算器、分子量计算器、重组计算器等);

4、母液配好之后,将其分装到常规用量,并储存在-20°C或-80°C,尽量减少反复冻融循环。

计算器

摩尔浓度计算器可计算特定溶液所需的质量、体积/浓度,具体如下:

  • 计算制备已知体积和浓度的溶液所需的化合物的质量
  • 计算将已知质量的化合物溶解到所需浓度所需的溶液体积
  • 计算特定体积中已知质量的化合物产生的溶液的浓度
使用摩尔浓度计算器计算摩尔浓度的示例如下所示:
假如化合物的分子量为350.26 g/mol,在5mL DMSO中制备10mM储备液所需的化合物的质量是多少?
  • 在分子量(MW)框中输入350.26
  • 在“浓度”框中输入10,然后选择正确的单位(mM)
  • 在“体积”框中输入5,然后选择正确的单位(mL)
  • 单击“计算”按钮
  • 答案17.513 mg出现在“质量”框中。以类似的方式,您可以计算体积和浓度。

稀释计算器可计算如何稀释已知浓度的储备液。例如,可以输入C1、C2和V2来计算V1,具体如下:

制备25毫升25μM溶液需要多少体积的10 mM储备溶液?
使用方程式C1V1=C2V2,其中C1=10mM,C2=25μM,V2=25 ml,V1未知:
  • 在C1框中输入10,然后选择正确的单位(mM)
  • 在C2框中输入25,然后选择正确的单位(μM)
  • 在V2框中输入25,然后选择正确的单位(mL)
  • 单击“计算”按钮
  • 答案62.5μL(0.1 ml)出现在V1框中
g/mol

分子量计算器可计算化合物的分子量 (摩尔质量)和元素组成,具体如下:

注:化学分子式大小写敏感:C12H18N3O4  c12h18n3o4
计算化合物摩尔质量(分子量)的说明:
  • 要计算化合物的分子量 (摩尔质量),请输入化学/分子式,然后单击“计算”按钮。
分子质量、分子量、摩尔质量和摩尔量的定义:
  • 分子质量(或分子量)是一种物质的一个分子的质量,用统一的原子质量单位(u)表示。(1u等于碳-12中一个原子质量的1/12)
  • 摩尔质量(摩尔重量)是一摩尔物质的质量,以g/mol表示。
/

配液计算器可计算将特定质量的产品配成特定浓度所需的溶剂体积 (配液体积)

  • 输入试剂的质量、所需的配液浓度以及正确的单位
  • 单击“计算”按钮
  • 答案显示在体积框中
动物体内实验配方计算器(澄清溶液)
第一步:请输入基本实验信息(考虑到实验过程中的损耗,建议多配一只动物的药量)
第二步:请输入动物体内配方组成(配方适用于不溶/难溶于水的化合物),不同的产品和批次配方组成不同,如对配方有疑问,可先联系我们提供正确的体内实验配方。此外,请注意这只是一个配方计算器,而不是特定产品的确切配方。
+
+
+

计算结果:

工作液浓度 mg/mL;

DMSO母液配制方法 mg 药物溶于 μL DMSO溶液(母液浓度 mg/mL)。如该浓度超过该批次药物DMSO溶解度,请首先与我们联系。

体内配方配制方法μL DMSO母液,加入 μL PEG300,混匀澄清后加入μL Tween 80,混匀澄清后加入 μL ddH2O,混匀澄清。

(1) 请确保溶液澄清之后,再加入下一种溶剂 (助溶剂) 。可利用涡旋、超声或水浴加热等方法助溶;
            (2) 一定要按顺序加入溶剂 (助溶剂) 。

临床试验信息
Palbociclib and Sorafenib, Decitabine, or Dexamethasone in Treating Patients with Recurrent or Refractory Leukemia
CTID: NCT03132454
Phase: Phase 1    Status: Active, not recruiting
Date: 2024-12-02
Targeted Therapy Directed by Genetic Testing in Treating Pediatric Patients With Relapsed or Refractory Advanced Solid Tumors, Non-Hodgkin Lymphomas, or Histiocytic Disorders (The Pediatric MATCH Screening Trial)
CTID: NCT03155620
Phase: Phase 2    Status: Recruiting
Date: 2024-12-02
Neoadjuvant Camrelizumab With Palbociclib for Resectable Esophageal Squamous Cell Carcinomas
CTID: NCT06654297
Phase: Phase 1    Status: Recruiting
Date: 2024-12-02
Phase I Study to Evaluate SIM0270 Alone or in Combination in ER+, HER2- Locally Advanced or Metastatic Breast Cancer
CTID: NCT05293964
Phase: Phase 1    Status: Active, not recruiting
Date: 2024-11-29
The CDK4/6 Inhibitor Dosing Knowledge (CDK) Study
CTID: NCT06377852
Phase: Phase 3    Status: Recruiting
Date: 2024-11-29
View More

Sotorasib Activity in Subjects With Advanced Solid Tumors With KRAS p.G12C Mutation (CodeBreak 101)
CTID: NCT04185883
Phase: Phase 1    Status: Recruiting
Date: 2024-11-29


Testing the Use of Neratinib or the Combination of Neratinib and Palbociclib Targeted Treatment for HER2+ Solid Tumors (A ComboMATCH Treatment Trial)
CTID: NCT06126276
Phase: Phase 2    Status: Recruiting
Date: 2024-11-27
Los Tres Paso: Neoadjuvant Palbociclib Monotherapy, Concurrent Chemoradiation Therapy, Adjuvant Palbociclib Monotherapy in Patients With p16INK4a Negative, HPV-Unrelated Head and Neck Squamous Cell Carcinoma
CTID: NCT03389477
Phase: Phase 2    Status: Active, not recruiting
Date: 2024-11-26
First-in-Human Study of STX-478 as Monotherapy and in Combination With Other Antineoplastic Agents in Participants With Advanced Solid Tumors
CTID: NCT05768139
Phase: Phase 1/Phase 2    Status: Recruiting
Date: 2024-11-25
Safety and Efficacy of PD0332991 (Palbociclib), a Cyclin-dependent Kinase 4 and 6 Inhibitor, in Patients With Oligodendroglioma or Recurrent Oligoastrocytoma Anaplastic With the Activity of the Protein RB Preserved
CTID: NCT02530320
Phase: Phase 2    Status: Completed
Date: 2024-11-22
Palbociclib and Pembrolizumab in Central Nervous System Metastases
CTID: NCT02896335
Phase: Phase 2    Status: Recruiting
Date: 2024-11-21
Targeted Therapy Directed by Genetic Testing in Treating Patients With Locally Advanced or Advanced Solid Tumors, The ComboMATCH Screening Trial
CTID: NCT05564377
Phase: Phase 2    Status: Recruiting
Date: 2024-11-21
Palbociclib and Binimetinib in RAS-Mutant Cancers, A ComboMATCH Treatment Trial
CTID: NCT05554367
Phase: Phase 2    Status: Recruiting
Date: 2024-11-20
Saruparib (AZD5305) Plus Camizestrant Compared With CDK4/6 Inhibitor Plus Endocrine Therapy or Plus Camizestrant in HR-Positive, HER2-Negative (IHC 0, 1+, 2+/ ISH Non-amplified), BRCA1, BRCA2, or PALB2m Advanced Breast Cancer
CTID: NCT06380751
Phase: Phase 3    Status: Recruiting
Date: 2024-11-19
Open-Label Umbrella Study To Evaluate Safety And Efficacy Of Elacestrant In Various Combination In Patients With Metastatic Breast Cancer
CTID: NCT05563220
Phase: Phase 1/Phase 2    Status: Recruiting
Date: 2024-11-18
Study of Precision Treatment for Rare Tumours in China Guided by PDO and NGS
CTID: NCT06692491
Phase: Phase 2    Status: Not yet recruiting
Date: 2024-11-18
Targeted Therapy Directed by Genetic Testing in Treating Patients With Advanced Refractory Solid Tumors, Lymphomas, or Multiple Myeloma (The MATCH Screening Trial)
CTID: NCT02465060
Phase: Phase 2    Status: Active, not recruiting
Date: 2024-11-18
A Study to Evaluate Efficacy and Safety of Giredestrant Compared With Fulvestrant (Plus a CDK4/6 Inhibitor), in Participants With ER-Positive, HER2-Negative Advanced Breast Cancer Resistant to Adjuvant Endocrine Therapy (pionERA Breast Cancer)
CTID: NCT06065748
Phase: Phase 3    Status: Recruiting
Date: 2024-11-15
A Study of Vepdegestrant (ARV-471, PF-07850327) Plus Palbociclib Versus Letrozole Plus Palbociclib in Participants With Estrogen Receptor Positive, Human Epidermal Growth Factor Negative Advanced Breast Cancer
CTID: NCT05909397
Phase: Phase 3    Status: Active, not recruiting
Date: 2024-11-14
A Study of Palbociclib (PD-0332991) + Letrozole vs. Letrozole For 1st Line Treatment Of Postmenopausal Women With ER+/HER2- Advanced Breast Cancer (PALOMA-2)
CTID: NCT01740427
Phase: Phase 3    Status: Completed
Date: 2024-11-14
Fulvestrant, Palbociclib and Erdafitinib in ER+/HER2-/FGFR-amplified Metastatic Breast Cancer
CTID: NCT03238196
Phase: Phase 1    Status: Completed
Date: 2024-11-14
Canadian Profiling and Targeted Agent Utilization Trial (CAPTUR)
CTID: NCT03297606
Phase: Phase 2    Status: Recruiting
Date: 2024-11-12
Avelumab, Cetuximab, and Palbociclib in Recurrent or Metastatic Head and Neck Squamous Cell Carcinoma
CTID: NCT03498378
Phase: Phase 1    Status: Active, not recruiting
Date: 2024-11-12
TAPUR: Testing the Use of Food and Drug Administration (FDA) Approved Drugs That Target a Specific Abnormality in a Tumor Gene in People With Advanced Stage Cancer
CTID: NCT02693535
Phase: Phase 2    Status: Recruiting
Date: 2024-11-12
Study for Participants Continuing From Pfizer-sponsored Palbociclib (a Study Medicine) Studies
CTID: NCT05226871
Phase: Phase 2    Status: Recruiting
Date: 2024-11-12
PAlbociclib and Circulating Tumor DNA for ESR1 Mutation Detection
CTID: NCT03079011
Phase: Phase 3    Status: Active, not recruiting
Date: 2024-11-12
Capivasertib + CDK4/6i + Fulvestrant for Advanced/Metastatic HR+/HER2- Breast Cancer (CAPItello-292)
CTID: NCT04862663
Phase: Phase 3    Status: Recruiting
Date: 2024-11-08
A Study of Ipatasertib Plus Palbociclib and Fulvestrant Versus Placebo Plus Palbociclib and Fulvestrant in Hormone Receptor Positive and HER2 Negative Locally Advanced Unresectable or Metastatic Breast Cancer
CTID: NCT04060862
Phase: Phase 1    Status: Terminated
Date: 2024-11-08
Palbociclib, Letrozole & Venetoclax in ER and BCL-2 Positive Breast Cancer
CTID: NCT03900884
Phase: Phase 1    Status: Active, not recruiting
Date: 2024-11-07
A Study Evaluating the Efficacy and Safety of Multiple Treatment Combinations in Participants With Breast Cancer
CTID: NCT04802759
Phase: Phase 1/Phase 2    Status: Recruiting
Date: 2024-11-06
Palbociclib in Treating Patients With Relapsed or Refractory Rb Positive Advanced Solid Tumors, Non-Hodgkin Lymphoma, or Histiocytic Disorders With Activating Alterations in Cell Cycle Genes (A Pediatric MATCH Treatment Trial)
CTID: NCT03526250
Phase: Phase 2    Status: Completed
Date: 2024-11-01
Ph2 Study NKT2152 with Palbociclib & Sasanlimab in Subjects with Advanced Clear Cell Renal Cell Carcinoma (ccRcc)
CTID: NCT05935748
Phase: Phase 2    Status: Active, not recruiting
Date: 2024-10-31
First-line Palbociclib and Endocrine Therapy for Patients With HR+/HER2- Advanced Breast Cancer in the Real-world Setting.
CTID: NCT04767594
Phase:    Status: Recruiting
Date: 2024-10-31
Pembrolizumab, Endocrine Therapy, and Palbociclib in Treating Postmenopausal Patients With Newly Diagnosed Metastatic Stage IV Estrogen Receptor Positive Breast Cancer
CTID: NCT02778685
Phase: Phase 2    Status: Active, not recruiting
Date: 2024-10-30
HOPE: Olaparib, Palbociclib and Fulvestrant in Patients With BRCA Mutation-associated, HR+, HER2-metastatic Breast Cancer
CTID: NCT03685331
Phase: Phase 1    Status: Active, not recruiting
Date: 2024-10-29
Testing the Addition of Cemiplimab to Palbociclib for the Treatment of Advanced Dedifferentiated Liposarcoma
CTID: NCT05694871
Phase: Phase 2    Status: Active, not recruiting
Date: 2024-10-26
A Study of Belzutifan (MK-6482) in Combination With Palbociclib Versus Belzutifan Monotherapy in Participants With Advanced Renal Cell Carcinoma (MK-6482-024/LITESPARK-024)
CTID: NCT05468697
Phase: Phase 1/Phase 2    Status: Recruiting
Date: 2024-10-26
A Clinical Research Study to Determine Whether PD 0332991 May Be Effective in Treating Patients With Liver Cancer
CTID: NCT01356628
Phase: Phase 2    Status: Completed
Date: 2024-10-23
A Study Of Palbociclib (PD-0332991) + Letrozole VS. Placebo+ Letrozole For 1st Line Treatment Of Asian Postmenopausal Women With ER+/HER2- Advanced Breast Cancer [PALOMA-4]
CTID: NCT02297438
Phase: Phase 3    Status: Active, not recruiting
Date: 2024-10-21
A Study Evaluating the Efficacy and Safety of Inavolisib + Palbociclib + Fulvestrant vs Placebo + Palbociclib + Fulvestrant in Patients With PIK3CA-Mutant, Hormone Receptor-Positive, Her2-Negative, Locally Advanced or Metastatic Breast Cancer
CTID: NCT04191499
Phase: Phase 2/Phase 3    Status: Active, not recruiting
Date: 2024-10-09
Comparative Real World Tumor Response in Pre-menopausal Metastatic Breast Cancer Patients Treated With Palbociclib + Aromatase Inhibitor or Aromatase Inhibitor Alone
CTID: NCT05012644
Phase:    Status: Completed
Date: 2024-10-08
PAveMenT: Palbociclib and Avelumab in Metastatic AR+ Triple Negative Breast Cancer
CTID: NCT04360941
Phase: Phase 1    Status: Recruiting
Date: 2024-10-08
Palbociclib and Cetuximab Versus Cetuximab Monotherapy for Patients With CDKN2A-altered, HPV-unrelated Head and Neck Squamous Cell Carcinoma Who Experienced Disease Progression on a PD-1/L1 Inhibitor
CTID: NCT04966481
Phase: Phase 3    Status: Recruiting
Date: 2024-10-03
A First-in-human Dose Escalation and Expansion Study to Evaluate the Safety, and Tolerability of AZD8421 Alone or in Combination in Participants With Selected Advanced or Metastatic Solid Tumors
CTID: NCT06188520
Phase: Phase 1/Phase 2    Status: Recruiting
Date: 2024-10-03
A Study Evaluating the Efficacy and Safety of Giredestrant Combined With Palbociclib Compared With Letrozole Combined With Palbociclib in Participants With Estrogen Receptor-Positive, HER2-Negative Locally Advanced or Metastatic Breast Cancer (persevERA Breast Cancer)
CTID: NCT04546009
Phase: Phase 3    Status: Active, not recruiting
Date: 2024-10-01
Palbociclib Pharmacokinetics Study In Postmenopausal Chinese Women With ER (+), HER2 (-) Advanced Breast Cancer
CTID: NCT02499146
Phase: Phase 1    Status: Active, not recruiting
Date: 2024-10-01
Phase III Study to Assess AZD9833+ CDK4/6 Inhibitor in HR+/HER2-MBC With Detectable ESR1m Before Progression (SERENA-6)
CTID: NCT04964934
Phase: Phase 3    Status: Active, not recruiting
Date: 2024-09-27
PIPA: Combination of PI3 Kinase Inhibitors and PAlbociclib
CTID: NCT02389842
Phase: Phase 1    Status: Completed
Date: 2024-09-26
Phase III Palbociclib With Endocrine Therapy vs. Capecitabine in HR+/HER2- MBC With Resistance to Aromatase Inhibitors
CTID: NCT02028507
Phase: Phase 3    Status: Completed
Date: 2024-09-25
A Comparative Study of AZD9833 Plus Palbociclib Versus Anastrozole Plus Palbociclib in Patients With ER-Positive HER2 Negative Breast Cancer Who Have Not Received Any Systemic Treatment for Advanced Disease
CTID: NCT04711252
Phase: Phase 3    Status: Active, not recruiting
Date: 2024-09-24
CARE Initiative: Real-world Emulation of the PALOMA-2 Trial
CTID: NCT06607601
Phase:    Status: Completed
Date: 2024-09-23
Treatment of Metastatic Breast Cancer With Fulvestrant Plus Palbociclib or Tamoxifen Plus Palbociclib
CTID: NCT02913430
PhaseEarly Phase 1    Status: Completed
Date: 2024-09-23
First-in-Human Study of Mutant-selective PI3Kα Inhibitor, RLY-2608, As a Single Agent in Advanced Solid Tumor Patients and in Combination with Fulvestrant in Patients with Advanced Breast Cancer
CTID: NCT05216432
Phase: Phase 1    Status: Recruiting
Date: 2024-09-23
To Evaluate the Safety, Tolerability, and Pharmacokinetics of Inavolisib Single Agent in Participants With Solid Tumors and in Combination With Endocrine and Targeted Therapies in Participants With Breast Cancer
CTID: NCT03006172
Phase: Phase 1    Status: Active, not recruiting
Date: 2024-09-20
A Study of H3B-6545 in Combination With Palbociclib in Women With Advanced or Metastatic Estrogen Receptor-Positive Human Epidermal Growth Factor Receptor-2 (HER2)-Negative Breast Cancer
CTID: NCT04288089
Phase: Phase 1    Status: Active, not recruiting
Date: 2024-09-19
Locoregional Treatment and Palbociclib in de Novo, Treatment Naive, Stage IV ER+, HER2- Breast Cancer Patients
CTID: NCT03870919
Phase: N/A    Status: Active, not recruiting
Date: 2024-09-19
A Study Evaluating the Efficacy and Safety of Biomarker-Driven Therapies in Patients With Persistent or Recurrent Rare Epithelial Ovarian Tumors
CTID: NCT04931342
Phase: Phase 2    Status: Active, not recruiting
Date: 2024-09-19
Randomized, Open Label, Clinical Study of the Targeted Therapy, Palbociclib, to Treat Metastatic Breast Cancer
CTID: NCT02947685
Phase: Phase 3    Status: Active, not recruiting
Date: 2024-09-19
Study Of Palbociclib Combined With Chemotherapy In Pediatric Patients With Recurrent/Refractory Solid Tumors
CTID: NCT03709680
Phase: Phase 2    Status: Active, not recruiting
Date: 2024-09-19
Neoadjuvant Endocrine Therapy, Palbociclib, Avelumab in Estrogen Receptor Positive Breast Cancer
CTID: NCT03573648
Phase: Phase 2    Status: Active, not recruiting
Date: 2024-09-19
PF-06804103 Dose Escalation in HER2 Positive and Negative (Negative Only in Part 2) Solid Tumors
CTID: NCT03284723
Phase: Phase 1    Status: Terminated
Date: 2024-09-03
A Study of GDC-9545 Alone or in Combination With Palbociclib and/or Luteinizing Hormone-Releasing Hormone (LHRH) Agonist in Locally Advanced or Metastatic Estrogen Receptor-Positive Breast Cancer
CTID: NCT03332797
Phase: Phase 1    Status: Active, not recruiting
Date: 2024-08-30
ONO-4578-06:Phase I Study of ONO-4578 and Letrozole Plus CDK4 /6 Inhibitors in Breast Cancer
CTID: NCT06570031
Phase: Phase 1    Status: Active, not recruiting
Date: 2024-08-26
Real-world Treatment Patterns and Effectiveness of Palbociclib and AI Therapy
CTID: NCT04176354
Phase:    Status: Completed
Date: 2024-08-23
Binimetinib and Palbociclib or TAS-102 in Treating Patients With KRAS and NRAS Mutant Metastatic or Unresectable Colorectal Cancer
CTID: NCT03981614
Phase: Phase 2    Status: Completed
Date: 2024-08-22
Phase 1b/2 Study of TTI-101 in Combination for Patients With Metastatic Hormone Receptor-Positive and HER2-Negative Breast Cancer
CTID: NCT05384119
Phase: Phase 1/Phase 2    Status: Completed
Date: 2024-08-22
Palbociclib and INCMGA00012 in People With Advanced Liposarcoma
CTID: NCT04438824
Phase: Phase 2    Status: Active, not recruiting
Date: 2024-08-21
A Study to Investigate the Safety, Tolerability, of APG-2575 as a Single Agent or in Combination for Breast Cancer
CTID: NCT04946864
Phase: Phase 1/Phase 2    Status: Suspended
Date: 2024-08-19
Bioequivalence Study of Palbociclib 125 mg Capsules of Iclos vs. Ibrance (Palbociclib) Capsules 125 mg
CTID: NCT06331715
Phase: Phase 4    Status: Completed
Date: 2024-08-19
Palbociclib in Combination With Chemotherapy in Treating Children With Relapsed Acute Lymphoblastic Leukemia (ALL) or Lymphoblastic Lymphoma (LL)
CTID: NCT03792256
Phase: Phase 1    Status: Active, not recruiting
Date: 2024-08-16
A Study of ZW25 (Zanidatamab) With Palbociclib Plus Fulvestrant in Patients With HER2+/HR+ Advanced Breast Cancer
CTID: NCT04224272
Phase: Phase 2    Status: Active, not recruiting
Date: 2024-08-14
Palbociclib for HR Positive / HER2-negative Isolated Locoregional Recurrence of Breast Cancer
CTID: NCT03820830
Phase: Phase 3    Status: Recruiting
Date: 2024-08-13
T-DM1 and Palbociclib for Metastatic HER2 Breast Cancer
CTID: NCT03530696
Phase: Phase 2    Status: Completed
Date: 2024-08-13
A Study of ZN-c5 in Subjects With Breast Cancer
CTID: NCT03560531
Phase: Phase 1/Phase 2    Status: Completed
Date: 2024-08-09
Palbociclib and Cetuximab in Metastatic Colorectal Cancer
CTID: NCT03446157
Phase: Phase 2    Status: Active, not recruiting
Date: 2024-08-07
Adagrasib in Combination With Palbociclib in Patients With Advanced Solid Tumors (KRYSTAL-16)
CTID: NCT05178888
Phase: Phase 1    Status: Active, not recruiting
Date: 2024-08-05
Ibrutinib and Palbociclib in Treating Patients With Previously Treated Mantle Cell Lymphoma
CTID: NCT02159755
Phase: Phase 1    Status: Active, not recruiting
Date: 2024-08-02
Ulixertinib/Palbociclib in Patients With Advanced Pancreatic and Other Solid Tumors
CTID: NCT03454035
Phase: Phase 1    Status: Recruiting
Date: 2024-08-02
Palbociclib + Ganitumab In Ewing Sarcoma
CTID: NCT04129151
Phase: Phase 2    Status: Terminated
Date: 2024-08-01
Anastrozole, Palbociclib, Trastuzumab and Pertuzumab in HR-positive, HER2-positive Metastatic Breast
CTID: NCT03304080
Phase: Phase 1/Phase 2    Status: Active, not recruiting
Date: 2024-08-01
Study to Evaluate the Extended Overall Survival (OS) Data From PARSIFAL Study (The PARSIFAL-LONG Study)
CTID: NCT06525675
Phase:    Status: Active, not recruiting
Date: 2024-07-30
Testing Palbociclib (PD-0332991) as a Potential Targeted Treatment in Cancers With CCND1, 2, 3 Amplification (MATCH-Subprotocol Z1B)
CTID: NCT04439201
Phase: Phase 2    Status: Active, not recruiting
Date: 2024-07-30
Clinical Trial Assessing the Safety of Neoadjuvant Palbociclib in Combination With Endocrine Therapy
CTID: NCT05069038
Phase: Phase 2    Status: Recruiting
Date: 2024-07-29
Palbociclib in Combination With Tamoxifen as First Line Therapy for Metastatic Hormone Receptor Positive Breast Cancer
CTID: NCT02668666
Phase: Phase 2    Status: Completed
Date: 2024-07-29
Palbociclib and Pembrolizumab in Undifferentiated Pleomorphic Sarcoma (UPS)
CTID: NCT06113809
Phase: Phase 1    Status: Recruiting
Date: 2024-07-26
Palbociclib With Fulvestrant for Metastatic Breast Cancer After Treatment With Palbociclib and an Aromatase Inhibitor
CTID: NCT02738866
Phase: Phase 2    Status: Active, not recruiting
Date: 2024-07-25
Trial of Anastrozole and Palbociclib in Metastatic HER2-Negative Breast Cancer
CTID: NCT02942355
Phase: Phase 2    Status: Active, not recruiting
Date: 2024-07-18
Study to Evaluate Real-world Effectiveness With Palbociclib Plus Endocrine Therapy as First-line/Second-line Treatment for HR+/HER2- Advanced Breast Cancer in Japan
CTID: NCT05399329
Phase:    Status: Active, not recruiting
Date: 2024-07-15
A Real-life Study to Understand the Use and Effects of Palbociclib in US Patients With Breast Cancer
CTID: NCT06495164
Phase:    Status: Active, not recruiting
Date: 2024-07-10
Testing Palbociclib (PD-0332991) as Potentially Targeting Treatment in Cancers With CDK4 or CDK6 Amplification (MATCH - Subprotocol Z1C)
CTID: NCT06390839
Phase: Phase 2    Status: Active, not recruiting
Date: 2024-07-03
Palbociclib in Combination With Bicalutamide for the Treatment of AR(+) Metastatic Breast Cancer (MBC)
CTID: NCT02605486
Phase: Phase 1/Phase 2    Status: Active, not recruiting
Date: 2024-07-03
Backline Treatment of Advanced Hepatocellular Carcinoma With Palbociclib
CTID: NCT06478927
Phase: N/A    Status: Recruiting
Date: 2024-06-27
Neratinib and Everolimus, Palbociclib, or Trametinib in Treating Participants With Refractory and Advanced or Metastatic Solid Tumors With EGFR Mutation/Amplification, HER2 Mutation/Amplification, or HER3/4 Mutation or KRAS Mutation
CTID: NCT03065387
Phase: Phase 1    Status: Active, not recruiting
Date: 2024-06-26
Real-World Effectiveness of Palbociclib in Combination With an Aromatase Inhibitor
CTID: NCT05361655
Phase:    Status: Completed
Date: 2024-06-07
Swedis
SERENA-6: A Phase III, Double-blind, Randomised Study to Assess Switching to AZD9833 (a Next Generation, Oral SERD) + CDK4/6 Inhibitor (Palbociclib or Abemaciclib) vs Continuing Aromatase Inhibitor (Letrozole or Anastrozole) + CDK4/6 Inhibitor in HR+/HER2- MBC Patients with Detectable ESR1 Mutation Without Disease Progression During 1L Treatment with Aromatase Inhibitor + CDK4/6 Inhibitor
CTID: null
Phase: Phase 3    Status: Trial now transitioned, Ongoing
Date: 2021-07-28
A Phase Ib/III Randomised Study of Capivasertib plus CDK4/6i and Fulvestrant versus Placebo plus CDK4/6 Inhibitors and Fulvestrant in Hormone Receptor-Positive and Human Epidermal Growth Factor Receptor 2-Negative Locally Advanced, Unresectable or Metastatic Breast Cancer
CTID: null
Phase: Phase 1, Phase 3    Status: Trial now transitioned, Ongoing
Date: 2021-07-14
SERENA-4: A Randomised, Multicentre, Double-Blind, Phase III Study of AZD9833 (an Oral SERD) plus Palbociclib versus Anastrozole plus Palbociclib for the Treatment of Patients with Estrogen Receptor-Positive, HER2-Negative Advanced Breast Cancer Who Have Not Received Any Systemic Treatment for Advanced Disease
CTID: null
Phase: Phase 3    Status: Trial now transitioned, Ongoing
Date: 2021-04-07
Randomized, Non-comparative Neoadjuvant Phase II Study in Patients with ER+/HER2- Breast Cancer >= 2 cm with Safety Run-in, Assessing Nivolumab + Abemaciclib or Palbociclib + Anastrozole
CTID: null
Phase: Phase 2    Status: Prematurely Ended
Date: 2020-12-10
A PHASE III RANDOMIZED, DOUBLE-BLIND, PLACEBO-CONTROLLED, MULTICENTER STUDY EVALUATING THE EFFICACY AND SAFETY OF GDC-9545 COMBINED WITH PALBOCICLIB COMPARED WITH LETROZOLE COMBINED WITH PALBOCICLIB IN PATIENTS WITH ESTROGEN RECEPTOR-POSITIVE, HER2-NEGATIVE LOCALLY ADVANCED OR METASTATIC BREAST CANCER
CTID: null
Phase: Phase 3    Status: Trial now transitioned, GB - no longer in EU/EEA
Date: 2020-11-06
A randomized, multicenter, double-blind phase 3 study of SAR439859 plus palbociclib versus letrozole plus palbociclib for the treatment of patients with ER (+), HER2 (-) breast cancer who have not received prior systemic anti-cancer treatment for advanced disease
CTID: null
Phase: Phase 3    Status: GB - no longer in EU/EEA, Prematurely Ended, Completed
Date: 2020-10-19
A RANDOMIZED, MULTICENTER, OPEN-LABEL, TWO-ARM, PHASE II, NEOADJUVANT STUDY EVALUATING THE EFFICACY, SAFETY, AND PHARMACOKINETICS OF GDC-9545 PLUS PALBOCICLIB COMPARED WITH ANASTROZOLE PLUS PALBOCICLIB FOR POSTMENOPAUSAL WOMEN WITH ESTROGEN RECEPTOR-POSITIVE AND HER2-NEGATIVE UNTREATED EARLY BREAST CANCER
CTID: null
Phase: Phase 2    Status: Completed
Date: 2020-10-15
A PHASE III, RANDOMIZED, DOUBLE-BLIND, PLACEBO-CONTROLLED STUDY EVALUATING THE EFFICACY AND SAFETY OF GDC-0077 PLUS PALBOCICLIB AND FULVESTRANT VERSUS PLACEBO PLUS PALBOCICLIB AND FULVESTRANT IN PATIENTS WITH PIK3CA-MUTANT, HORMONE RECEPTOR POSITIVE, HER2-NEGATIVE LOCALLY ADVANCED OR METASTATIC BREAST CANCER
CTID: null
Phase: Phase 3    Status: Trial now transitioned, GB - no longer in EU/EEA, Completed
Date: 2020-08-21
The ROME trial from histology to target: the road to personalize target therapy and immunotherapy
CTID: null
Phase: Phase 2    Status: Ongoing
Date: 2020-07-08
Adjuvant PalbOciclib + LetrOzole combination for hormone receptor positive / HER2-negative, Intermediate Risk breast cancer
CTID: null
Phase: Phase 2    Status: Completed
Date: 2020-06-09
Phase 2a Study of ZW25 in Combination with Palbociclib Plus Fulvestrant
CTID: null
Phase: Phase 2    Status: Ongoing
Date: 2020-03-25
A phase II trial of an individualized treatment strategy for patients with metastatic non-clear cell renal carcinoma
CTID: null
Phase: Phase 2    Status: Trial now transitioned
Date: 2019-11-20
A PHASE IB/III STUDY OF IPATASERTIB PLUS PALBOCICLIB AND FULVESTRANT VERSUS PLACEBO PLUS PALBOCICLIB AND FULVESTRANT IN HORMONE RECEPTOR POSITIVE AND HER2 NEGATIVE LOCALLY ADVANCED UNRESECTABLE OR METASTATIC BREAST CANCER
CTID: null
Phase: Phase 1, Phase 3    Status: Completed
Date: 2019-08-21
A phase III open-label, multicenter, randomized trial of adjuvant palbociclib in combination with endocrine therapy versus endocrine therapy alone for patients with hormone receptor positive / HER2-negative resected isolated locoregional recurrence of breast cancer
CTID: null
Phase: Phase 3    Status: Trial now transitioned, Ongoing
Date: 2019-06-25
NEO21-RS: A phase II randomised study of the cyclin-dependent kinase 4/6 inhibitor palbociclib in combination with oestrogen suppression therapy versus oestrogen suppression therapy alone as neoadjuvant therapy in ER-positive intermediate recurrence score primary breast cancer
CTID: null
Phase: Phase 2    Status: GB - no longer in EU/EEA
Date: 2019-06-07
Palbociclib plus fulvestrant in women with hormone receptor positive and human epidermal growth factor receptor type 2 negative locally advanced or metastatic breast cancer previously treated with a CDK4/6 inhibitor in combination with hormonal therapy: a multicenter, phase II trial
CTID: null
Phase: Phase 2    Status: Trial now transitioned
Date: 2019-05-06
INTERNATIONAL, MULTICENTER, RANDOMIZED, OPEN-LABEL, PHASE II CLINICAL TRIAL TO EVALUATE THE EFFICACY AND SAFETY OF CONTINUATION OF PALBOCICLIB IN COMBINATION WITH SECOND-LINE ENDOCRINE THERAPY IN HORMONE RECEPTOR- POSITIVE/HER2-NEGATIVE ADVANCED BREAST CANCER PATIENTS WHO HAVE ACHIEVED CLINICAL BENEFIT DURING FIRST-LINE PALBOCICLIB-BASED TREATMENT.
CTID: null
Phase: Phase 2    Status: Ongoing, Completed
Date: 2019-02-08
Effect of the moderate CYP3A4-inhibitor erythromycin on the pharmacokinetics of palbociclib
CTID: null
Phase: Phase 4    Status: Completed
Date: 2019-01-23
Phase II open-label, multicenter, randomized trial of neoadjuvant palbociclib in combination with hormonal therapy and HER2 blockade versus paclitaxel in combination with HER2 blockade for postmenopausal patients with hormone receptor positive/HER2 positive early breast cancer
CTID: null
Phase: Phase 2    Status: Completed
Date: 2019-01-08
A Phase 1/2 Study for the Safety, Efficacy, Pharmacokinetic, and Pharmacodynamics Evaluation of SAR439859, Administered Orally as Monotherapy, then in Combination with Palbociclib in Postmenopausal Women with Estrogen Receptor-positive Advanced Breast Cancer
CTID: null
Phase: Phase 1, Phase 2    Status: Completed, Trial now transitioned, GB - no longer in EU/EEA, Prematurely Ended
Date: 2018-12-17
A Phase II study of Adjuvant PALbociclib as an Alternative to CHemotherapy in Elderly patientS with high-risk ER+/HER2- early breast cance (APPALACHES)
CTID: null
Phase: Phase 2    Status: Ongoing, Trial now transitioned, GB - no longer in EU/EEA, Completed
Date: 2018-11-28
Neoadjuvant Letrozole and Palbociclib in patients with Stage II-IIIb breast cancer, HR (+) / HER2 (-) phenotype and Intermediate (18-25) or High (>25) Recurrence-Score by Oncotype-DX; analysis of RS and pathological changes at surgery.
CTID: null
Phase: Phase 2    Status: Completed
Date: 2018-11-27
MOLECULAR PROFILING OF ADVANCED SOFT-TISSUE SARCOMAS - A phase III study
CTID: null
Phase: Phase 3    Status: Trial now transitioned
Date: 2018-10-08
Umbrella protocol for phase I/IIa trials of molecularly matched targeted therapies plus radiotherapy in patients with newly diagnosed glioblastoma without MGMT promoter methylation: NCT Neuro Master Match - N²M² (NOA-20)
CTID: null
Phase: Phase 1, Phase 2    Status: Completed
Date: 2018-04-04
A RANDOMIZED, OPEN-LABEL, MULTI-CENTER PHASE IV STUDY EVALUATING PALBOCICLIB PLUS ENDOCRINE TREATMENT VERSUS A CHEMOTHERAPY-BASED TREATMENT STRATEGY IN PATIENTS WITH HORMONE RECEPTOR POSITIVE / HER2 NEGATIVE METASTATIC BREAST CANCER IN A REAL WORLD SETTING.
CTID: null
Phase: Phase 4    Status: Completed
Date: 2018-01-08
A proof of concept study to explore safety and efficacy of tri-therapy approach in advanced/metastatic NSCLC and retrospectively assess the ability of integrated genomics and transcriptomics to match patients to the combination
CTID: null
Phase: Phase 1, Phase 2    Status: Ongoing, Prematurely Ended
Date: 2017-12-15
CDK4/6 inhibition in locally advanced/metastatic chordoma
CTID: null
Phase: Phase 2    Status: Completed
Date: 2017-11-22
A pilot study of perlse if(down_display === 'none' || down_display

生物数据图片
  • Palbociclib

    Evaluation of IC50concentrations of the CDK inhibitors dinaciclib and palbociclib on proliferation, and their effects on CDK-Rb-E2F signaling in human HPASMCs from healthy donors and IPAH patients.2019May 17;10(1):2204.

  • Palbociclib

    Effects of the CDK inhibitors dinaciclib and palbociclib on proliferation, cell cycle, and apoptosis.2019May 17;10(1):2204.

  • Palbociclib


    Effects of palbociclib on disease progression in the MCT rat model of pulmonary arterial hypertension.2019May 17;10(1):2204.

  • Palbociclib


    Effects of palbociclib on disease progression in the Su/Hox rat model of pulmonary arterial hypertension.2019May 17;10(1):2204.

  • Palbociclib


    Ex vivo analyses of lung tissue for reversal of remodeling and in vivo drug efficacy in the Su/Hox model.2019May 17;10(1):2204.

  • Palbociclib


    Proposed mechanism of action of palbociclib and dinaciclib in PAH. Multiple growth factors, cytokines, and mitogens induce the activation of cyclin-dependent kinases (CDKs), e.g., by increasing the expression of cyclin D1.2019May 17;10(1):2204.

  • Palbociclib

  • Palbociclib

  • Palbociclib
  • Palbociclib

    Effects of PD 0332991 on phosphorylation of retinoblastoma gene product. Breast Cancer Res. 2009;11(5):R77.
  • Palbociclib

    PD 0332991 and tamoxifen in a tamoxifen-insensitive cell line. Breast Cancer Res. 2009;11(5):R77.
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