ADC TOXICITY ATLAS
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Polatuzumab vedotin

FDA-approved
Polivy; DCDS4501A
Sponsor
Genentech/Roche
Indication
CD79B+ DLBCL
Target family
Immunoglobulin superfamily
RP2D dose
1.8 mg/kg
Q3WRP2D
01
Multi-organ toxicity

Fingerprint & organ drill-down

Also reported
0%severity100%
0
Assessed · clear
true 0%
No data
never assessed
41 adverse-event terms

Ocular

Any-grade
1.2%
G3+
0%
RP2D
sagittal schematic · Partial

Tissues shaded by reported adverse-event rate.

Cornea
AE
-
Express.
0%
Limbus
AE
-
Express.
0%
Conjunctiva
AE
-
Express.
0%
Lens
AE
-
Express.
-
Retina / RPE
AE
-
Express.
-
0 nTPM
Dominant tissue
-
Surface subtype
Unknown
Reversibility
Partial
Reported ocular events
DRY EYE8.82%
non-seriousn=34
CONJUNCTIVITIS5.88%
non-seriousn=34
Vision blurred3.48%
non-seriousn=115
Dry eye3.48%
non-seriousn=115
CONJUNCTIVITIS VIRAL2.94%
non-seriousn=34
CATARACT NUCLEAR2.94%
non-seriousn=34
SCLERITIS2.94%
non-seriousn=34
VITREOUS DEGENERATION2.94%
non-seriousn=34
Eye infection2.44%
non-seriousn=41
Periorbital edema2.44%
non-seriousn=41
EYE PAIN2.29%
non-seriousn=131
OCULAR HYPERAEMIA1.77%
non-seriousn=113
PERIORBITAL OEDEMA1.77%
non-seriousn=113
Visual impairment1.41%
non-seriousn=142
Eye pain1.41%
non-seriousn=142
CATARACT1.22%
non-seriousn=82
AMBLYOPIA1.22%
non-seriousn=82
CONJUNCTIVAL HYPERAEMIA1.22%
non-seriousn=82
CONJUNCTIVAL IRRITATION1.22%
non-seriousn=82
EYE IRRITATION1.22%
non-seriousn=82
Blurred vision1.2%
n=173
EYE PRURITUS0.92%
non-seriousn=327
OCULAR ICTERUS0.88%
non-seriousn=113
Halo vision0.87%
non-seriousn=115
Retinopathy0.87%
non-seriousn=115
Vitreous floaters0.87%
non-seriousn=115
LACRIMATION INCREASED0.76%
non-seriousn=131
VISION BLURRED0.76%
non-seriousn=131
RETINAL DETACHMENT0.76%
seriousn=131
RETINAL TEAR0.76%
seriousn=131
DIPLOPIA0.76%
non-seriousn=131
PHOTOPHOBIA0.76%
non-seriousn=131
SCLERAL HYPERAEMIA0.76%
non-seriousn=131
VISUAL ACUITY REDUCED0.76%
non-seriousn=131
VISUAL IMPAIRMENT0.76%
non-seriousn=131
OCULAR MELANOMA0.76%
non-seriousn=131
OCULAR SURFACE SQUAMOUS NEOPLASIA0.76%
non-seriousn=131
Lacrimation increased0.7%
non-seriousn=142
CYTOMEGALOVIRUS CHORIORETINITIS0.31%
seriousn=327
GLAUCOMA0.31%
non-seriousn=327
EYE DISCHARGE0.31%
non-seriousn=327
Per-trial detail

Adverse events by trial

A Study of Polatuzumab Vedotin (DCDS4501A) in Combination With Rituximab or ObinPHASE1|PHASE2real-worldn=327CTCAE NR (ClinicalTrials.govPooledC
360 adverse-event terms · 21 systems · expand a system below
Infections69
UPPER RESPIRATORY TRACT INFECTION
9.48%non-serious
31/327
PNEUMONIA
7.65%serious
25/327
URINARY TRACT INFECTION
5.81%non-serious
19/327
HERPES ZOSTER
5.2%non-serious
17/327
SEPSIS
4.89%serious
16/327
BRONCHITIS
2.75%non-serious
9/327
ORAL HERPES
2.75%non-serious
9/327
NASOPHARYNGITIS
2.45%non-serious
8/327
SINUSITIS
2.45%non-serious
8/327
ORAL CANDIDIASIS
1.83%non-serious
6/327
HERPES VIRUS INFECTION
1.22%non-serious
4/327
SEPTIC SHOCK
1.22%serious
4/327
CANDIDA INFECTION
0.92%non-serious
3/327
INFECTION
0.92%non-serious
3/327
NEUTROPENIC SEPSIS
0.92%serious
3/327
RESPIRATORY TRACT INFECTION
0.92%serious
3/327
CELLULITIS
0.92%non-serious
3/327
CLOSTRIDIUM DIFFICILE INFECTION
0.61%non-serious
2/327
CYTOMEGALOVIRUS INFECTION
0.61%non-serious
2/327
LOWER RESPIRATORY TRACT INFECTION
0.61%non-serious
2/327
RHINOVIRUS INFECTION
0.61%serious
2/327
CYSTITIS
0.61%non-serious
2/327
ABDOMINAL ABSCESS
0.31%serious
1/327
ABDOMINAL INFECTION
0.31%serious
1/327
ARTHRITIS BACTERIAL
0.31%serious
1/327
BACTERAEMIA
0.31%serious
1/327
BACTERIAL INFECTION
0.31%serious
1/327
CLOSTRIDIUM DIFFICILE COLITIS
0.31%serious
1/327
COVID-19 PNEUMONIA
0.31%serious
1/327
CYTOMEGALOVIRUS COLITIS
0.31%serious
1/327
CYTOMEGALOVIRUS ENTERITIS
0.31%serious
1/327
CYTOMEGALOVIRUS VIRAEMIA
0.31%non-serious
1/327
DEVICE RELATED INFECTION
0.31%serious
1/327
DISSEMINATED VARICELLA ZOSTER VIRUS INFECTION
0.31%serious
1/327
DIVERTICULITIS
0.31%serious
1/327
EAR INFECTION
0.31%non-serious
1/327
ENTEROCOLITIS VIRAL
0.31%serious
1/327
ESCHERICHIA BACTERAEMIA
0.31%serious
1/327
ESCHERICHIA URINARY TRACT INFECTION
0.31%non-serious
1/327
GASTROENTERITIS
0.31%serious
1/327
GIARDIASIS
0.31%serious
1/327
HEPATITIS E
0.31%serious
1/327
OESOPHAGEAL CANDIDIASIS
0.31%serious
1/327
ORAL INFECTION
0.31%serious
1/327
PARONYCHIA
0.31%serious
1/327
PLEURAL INFECTION BACTERIAL
0.31%serious
1/327
PNEUMONIA BACTERIAL
0.31%serious
1/327
PNEUMONIA FUNGAL
0.31%serious
1/327
POST PROCEDURAL INFECTION
0.31%serious
1/327
PROGRESSIVE MULTIFOCAL LEUKOENCEPHALOPATHY
0.31%serious
1/327
RESPIRATORY SYNCYTIAL VIRUS INFECTION
0.31%serious
1/327
RESPIRATORY TRACT INFECTION VIRAL
0.31%serious
1/327
SKIN INFECTION
0.31%non-serious
1/327
VASCULAR ACCESS SITE CELLULITIS
0.31%serious
1/327
CEREBRAL TOXOPLASMOSIS
0.31%serious
1/327
CLOSTRIDIAL SEPSIS
0.31%serious
1/327
GASTROINTESTINAL BACTERIAL INFECTION
0.31%serious
1/327
HUMAN ANAPLASMOSIS
0.31%serious
1/327
INFECTED LYMPHOCELE
0.31%serious
1/327
LARGE INTESTINE INFECTION
0.31%serious
1/327
MENINGOENCEPHALITIS HERPETIC
0.31%serious
1/327
PNEUMOCYSTIS JIROVECII PNEUMONIA
0.31%serious
1/327
PNEUMONIA CYTOMEGALOVIRAL
0.31%serious
1/327
PNEUMONIA PNEUMOCOCCAL
0.31%serious
1/327
PNEUMONIA VIRAL
0.31%serious
1/327
UROSEPSIS
0.31%serious
1/327
FOLLICULITIS
0.31%non-serious
1/327
RASH PUSTULAR
0.31%non-serious
1/327
VASCULAR ACCESS SITE INFECTION
0.31%non-serious
1/327
GI43
Neurologic (other)33
Pulmonary30
Investigations24
General20
Metabolic17
Musculoskeletal16
Neoplasms16
Dermatologic14
Cardiac13
Hematologic12
Vascular10
Renal9
Injury8
Psychiatric8
Ocular6
EYE PRURITUS
0.92%non-serious
3/327
VISION BLURRED
0.92%non-serious
3/327
CYTOMEGALOVIRUS CHORIORETINITIS
0.31%serious
1/327
OCULAR HYPERAEMIA
0.31%non-serious
1/327
EYE DISCHARGE
0.31%non-serious
1/327
GLAUCOMA
0.31%non-serious
1/327
Other5
Hepatic3
Ear2
Immune2
02
Construct

Molecular anatomy

Antibody
IgG1
Humanized
Linker
Cleavable
3.5
DAR
Payload
Tubulin inhibitor
Linker structureC28H40N6O7
[H]OC([H])([H])c1c([H])c([H])c(N([H])C(=O)[C@@]([H])(N([H])C(=O)[C@@]([H])(N([H])C(=O)C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])N2C(=O)C([H])=C([H])C2=O)C([H])(C([H])([H])[H])C([H])([H])[H])C([H])([H])C([H])([H])C([H])([H])N([H])C(=O)N([H])[H])c([H])c1[H]
Payload structureC39H67N5O7
CC[C@H](C)[C@@H]([C@@H](CC(=O)N1CCC[C@H]1[C@@H]([C@@H](C)C(=O)N[C@H](C)[C@H](C2=CC=CC=C2)O)OC)OC)N(C)C(=O)[C@H](C(C)C)NC(=O)[C@H](C(C)C)NC
03
Antibody

Antibody & Fc engineering

Antibody
MCDS4501A (polatuzumab)
Isotype
IgG1
Origin
Humanized
Fc modifications
Noneinferred
Glycoengineering
Standardinferred
Effector silencing
Noneinferred
FcγR binding
Retained
C1q binding
Retainedinferred
Target KD (nM)
0.02
Epitope / domain
CD79b extracellular Ig-like domain
04
Linker & conjugation

Linker chemistry

Linker profile
Linker
MC-vc-PAB (vedotin)
Class
Cleavable
Cleavage
Cleavable
Attachment
Cysteine (interchain)
Conjugation
Conventional interchain Cys
Symmetry
Symmetric
DAR (mean)
3.5
DAR homogeneity
Heterogeneous
Plasma t½
6.0 d
Cleavage trigger
Cathepsin B (Val-Cit)
Release control
Conditional
Hydrophilicity mask
Noneinferred
Platform
vcMMAE / Seagen
Cell line
CHO
Formula
C28H40N6O7
Linker MW
572.663 Da
Linker TPSA
200.03 Ų
Linker xLogP
0.6769
ADCdb linker
LIN0SQEDQ
In-vitro stability
-
Stability note
acMMAE t½ 4.43–7.98 d in Japanese R/R B-NHL Ph1 (Tanizaki 2021); population PK in POLARIX (Lu 2024) confirms ~6 d; conventional Cys vc-MMAE
05
Payload

Payload & physicochemistry

Payload profile
Payload
MMAE
Class
Auristatin
Mechanism
Tubulin inhibitor
Released catabolite
Unconjugated MMAE
Mechanistic subtype
Tubulin-auristatin
Stereochem / salt
-
Bystander
Yes
PAMPA rank
1
MW
718 Da
XLogP3
4.1
logD₇.₄
2.7
TPSA
150 Ų
pKa
9.1 pKa
Charge pH 7.4
+1
H-bond donors
4
H-bond acceptors
8
IC50 (HCEC)
-
Formula
C39H67N5O7
PubChem CID
11542188
ADCdb payload
PAY0FSXOW
Plasma protein binding (%)
71 %
Hydrophobicity · logD₇.₄
hydrophilic −2+2.7+4 lipophilic
Bioactivity note
ADCdb reports clinical efficacy in relapsed/refractory DLBCL (ORR up to ~76% in combination therapy); no explicit free-payload IC50 or ADC binding affinity value was listed on the ADCdb page or PubChem entry. ADCdb therapeutic target for the payload: Microtubule (MT) disruption (
06
Dosing & regimen

Dosing

RP2D dose
1.8 mg/kg
Schedule
Q3W
Route
IV
Fractionated
No
n at RP2D
435
Dose basis
TBW
Trial phase
Approved
Dose-OAE available
No
Tox summary basis
RP2D
ADA rate (%)
1.4 %
07
Pharmacology

Clinical pharmacokinetics

By analyte · FDA label §12.3 + Drugs@FDA clinical-pharmacology reviews
Intact ADCFree payload
Cmax
688ng/mL+2
3.19ng/mL+2
AUC
2040day*ng/mL+2
31.0day*ng/mL+2
12.2days
3.74days
CL
0.9L/day
Vd
3.15L
FDA label §12.3 Drugs@FDA reviewhover a value for dose / population / source · “+N” marks additional reported values
08
Ocular & expression

Ocular profile & eye-tissue target expression

Target profile
OAE any-grade
1.2 %
OAE grade 3+
0 %
OAE data status
reported
Severity (weighted)
0.4
Keratopathy
-
Conjunctival
-
Dry eye
-
Blurred vision
1.2 %
Dominant tissue
-
Surface subtype
Unknown
Grading scale
CTCAE v4.03locator?
Reversibility
Partial
Target expression in eye tissues (HCA detection · HPA bulk)
Cornea (central)
0 %
Cornea (limbal)
0 %
Conjunctiva
0 %
RPE
-
Retina (HPA)
0 nTPM
Cross-trial comparability · source-verified
Ascertainment: Symptom-driven reportingScale: CTCAE v4Denominator: RP2D⚠ Not comparable: symptom-driven ascertainment
Dose & schedule → ocular toxicity · ocular AE (any-grade) by cohort
1.8 mg/kg
Day 2 of Cycle 1 then Day 1 of Cycles 2-6, 21-day cycles
1.2%
n=173 · GO29365 (expanded safety population)
see line_context
20%
n=10 · Obin + Pola + Venetoclax
see line_context
10%
n=20 · ROMULUS (Pola+anti-CD20 arms)
8.82%
n=34 · A Study Evaluating Safety and Efficacy of Obinutuzumab, Polatuzumab Vedotin (Pol
see line_context
7.5%
n=40 · ROMULUS (Pola+anti-CD20 arms)
7.04%
n=142 · ROMULUS
see line_context
5.9%
n=17 · Pola + R-CHP/G-CHP 1L DLBCL
see line_context
5.3%
n=38 · GO40516 (Mosun + CHP-Pola)
see line_context
5%
n=40 · Pola + Lenalidomide + G/R
see line_context
5%
n=20 · GO29365 (Pola+BR / Pola+BG)
see line_context
5%
n=20 · GO29365 (Pola+BR / Pola+BG)
see line_context
4.5%
n=22 · GO40516 (Mosun + CHP-Pola)
3.48%
n=115 · A Phase Ib/II Study Investigating the Safety, Tolerability, Pharmacokinetics, an
see line_context
2.9%
n=35 · Pola-R-ICE
2.65%
n=113 · A Study of Obinutuzumab, Polatuzumab Vedotin, and Lenalidomide in Relapsed or Re
see line_context
2.5%
n=40 · Pola + Venetoclax + G/R
2.44%
n=41 · Polatuzumab Vedotin, Rituximab, Ifosfamide, Carboplatin, and Etoposide (PolaR-IC
see line_context
2.4%
n=41 · Pola + Venetoclax + G/R
2.29%
n=131 · A Study of Obinutuzumab, Rituximab, Polatuzumab Vedotin, and Venetoclax in Relap
1.22%
n=82 · A Study of Polatuzumab Vedotin in Combination With Rituximab or Obinutuzumab, Cy
0.92%
n=327 · A Study of Polatuzumab Vedotin (DCDS4501A) in Combination With Rituximab or Obin
Per-cohort rates from the per-trial extraction, sorted by dose. Cross-trial comparison is subject to ascertainment / scale differences (see comparability above) — e.g. an early symptom-driven trial can read lower than a later systematic-exam trial at a higher dose.
Ocular AE grading reference — interspecialty consensus · 6 scales + dose modification
09
Identity & registry

Identifiers, registry & notes

ADC id
polatuzumab-vedotin
Approval status
FDA-approved
Approval year
2019
UniProt
P40259
ADCdb ADC
DRG0QWZIT
ADCdb antibody
ANI0WTRRK
ADCdb target
TAR0KZVDX
Primary source
POLIVY DailyMed label (Mar 2026); imputed from >=10% threshold
Aliases & development codes
Polivy; DCDS4501A
Notes
5% imputed; CD79B absent from cornea/conjunctiva