ADC的成功设计是在循环中高药物连接物的稳定性与有效的**内细胞毒性药物释放的结合。过去几年中，在开发更稳定的连接方面取得了重大成就。但是，循环中从载体抗体中非特异性释放药物仍然是决定ADC半衰期的关键因素。为了测量已从载体抗体释放的药物部分（即游离药物），可以将竞争性LBA包被用于捕获的抗药抗体和恒定浓度的HRP-药物一起用作报告基因。

因为从ADC释放的游离药物的清除速度比ADC自身的清除速度快得多，所以可能无法检测到游离药物。为了解决这个问题，可以测量与ADC结合的剩余药物。通过使用组织蛋白酶B消化释放先前与载体抗体结合的药物，然后通过竞争性LBA分析或LC-MS定量游离药物来实现此测量。

 理想情况下，应在ADC开发和表征的早期阶段开发用于非临床PK生物学分析的测定方法。与平均DAR标准相比，可以通过测定富集或纯化的药物抗体比率（DAR）分数的回收率来进行分析评估，以确保不同的分析形式均等地回收药物。如果无法进行此分析，则对于生物分析方法的设计，ADC的作用机理，靶向的**抗原，接头的类型，药物抗体比率，细胞毒性药物等的详细信息是必需的。除了LBA方法外，亲水相互作用色谱（HILIC），HPLC和LC-MS还用于定量ADC。

相关资料：

ADC pre-screening kit A

Protein A-DM1

Protein A-MMAE

Protein A-MMAF

Protein A-Duocarmycin

Protein A-Calicheamicin

Protein A-PBD

ADC pre-screening kit G

Protein G-DM1

Protein G-MMAE

Protein G-MMAF

Protein G-Duocarmycin

Protein G-Amanitin

Protein G-Amanitin

Rabbit Anti-vc-PAB-MMAE pAb

Mouse Anti-vc-PAB-MMAE mAb (B11F11)

Rabbit Anti-MMAF pAb

Mouse Anti-MMAF mAb (F3B11)

Mouse Anti-MMAE / F mAb (B12A2)

Mouse Anti-MMAE /F mAb (C12A1)

Rabbit Anti-DM1/4 pAb

Mouse Anti-DM1/4 mAb (F1D5)

Mouse Anti-DM1/4 mAb (G2F3)

Rabbit Anti-Calicheamicin pAb

Mouse Anti-Calicheamicin mAb (B1G9)

Mouse Anti-Calicheamicin mAb (C1F12)

Rabbit Anti-Duocarmycin pAb 

Mouse Anti-Duocarmycin mAb (E11A1)

Mouse Anti-Duocarmycin mAb (H7A9)

Mouse Anti-Duocarmycin mAb (E6B3) 

Rabbit Anti-PNU-159682 pAb

Mouse Anti-PNU-159682 mAb (F7F2)

Mouse Anti-PNU-159682 mAb (C1E3)

Mouse Anti-PNU-159682 mAb (D12H11)

Rabbit Anti-Amanitin pAb

Mouse Anti-Amanitin mAb (H3E1)

Mouse Anti-Amanitin mAb (H12D6)

Mouse Anti-Amanitin mAb (C2C4)

Rabbit Anti-SN38 pAb

Mouse Anti-SN38 mAb (10F11A9D6)

Mouse Anti-SN38 mAb (8E10F12F3)

Mouse Anti-SN38 mAb (8E10A4A1)

Rabbit Anti-PBD SG3199 pAb

Mouse Anti-PBD SG3199 (7H6H9A6) mAb

Mouse Anti-PBD SG3199 (8G2H12A9) mAb

Mouse Anti-PBD SG3199 (8B3D12G1) mAb

MC-vc-PAB-(PEG2)-duocarmycin DM

DGN549

MPB-vc-PAB-MMAE

MPB-MMAF

DBCO-PEG4-vc-PAB-MMAE

DBCO-PEG4-MMAF

DBCO-PEG4-Ahx-DM1

DBCO-PEG4-vc-PAB-Duocarmycin SA

DBCO-PEG4-vc-PAB-(PEG2)-Duocarmycin SA

DBCO-PEG4-VA-PBD

DBCO-PEG4-vc-PAB-MMAF

DBCO-PEG4-vc-PAB-MMAD

DBCO-PEG4-vc-PAB-Duocarmycin TM

DBCO-PEG4-vc-PAB-(PEG2)-Duocarmycin TM

DBCO-PEG4-vc-PAB-Duocarmycin DM

DBCO-PEG4-vc-PAB-(PEG2)-Duocarmycin DM

DBCO-PEG4-VC-PAB-DMAE-PNU159682

DBCO-PEG4-DMAE-PNU159682

DBCO-PEG4-GGFG-DX8951

DBCO-PEG4-vc-PAB-Ahx-DM1

DBCO-PEG8-VA-PAB-SG3199

Gly3-vc-PAB-MMAE