(enfortumab vedotin-ejfv)
The following serious adverse reactions are described elsewhere in the labeling:
Because clinical trials are conducted under widely varying conditions, adverse reaction rates observed in the clinical trials of a drug cannot be directly compared to rates in the clinical trials of another drug and may not reflect the rates observed in practice.
The safety population described in the WARNINGS AND PRECAUTIONS reflect exposure to PADCEV 1.25 mg/kg in combination with intravenous pembrolizumab for the treatment of MIBC in 570 patients in EV-303 (NCT03924895) and EV-304 (NCT04700124) and for the treatment of la/mUC in 564 patients in EV-302 (NCT04223856) and EV-103 (NCT03288545); PADCEV as a single agent at 1.25 mg/kg in 720 patients in EV-301 (NCT03474107), EV‑201 (NCT03219333), EV-203 (NCT04995419), EV-101 (NCT02091999), and EV-102 (NCT03070990). Ocular disorders reflect 384 patients in EV‑201, EV-101, and EV-102.
Among 570 patients receiving PADCEV in combination with intravenous pembrolizumab for the treatment of MIBC, the most common (≥20%) adverse reactions, including laboratory abnormalities, were decreased hemoglobin, increased aspartate aminotransferase, increased alanine aminotransferase, rash, increased creatinine, decreased lymphocytes, fatigue, pruritus, decreased sodium, peripheral neuropathy, increased potassium, diarrhea, alopecia, dysgeusia, decreased appetite, nausea, constipation, urinary tract infection, dry eye, increased glucose, decreased weight, decreased potassium, hyperglycemia, decreased phosphate, and decreased neutrophils.
Among 564 patients receiving PADCEV in combination with intravenous pembrolizumab for the treatment of la/mUC, 59% were exposed to PADCEV for ≥6 months, and 24% were exposed for ≥12 months. In this pooled population, the most common (≥20%) adverse reactions, including laboratory abnormalities, were increased aspartate aminotransferase, increased creatinine, rash, increased glucose, peripheral neuropathy, increased lipase, decreased lymphocytes, increased alanine aminotransferase, decreased hemoglobin, fatigue, decreased sodium, decreased phosphate, decreased albumin, pruritus, diarrhea, alopecia, decreased weight, decreased appetite, increased urate, decreased neutrophils, decreased potassium, dry eye, nausea, constipation, increased potassium, dysgeusia, urinary tract infection, and decreased platelets.
Among 720 patients receiving PADCEV as a single agent, 37% were exposed for ≥6 months, and 14% were exposed for ≥12 months. In this pooled population, the most common (≥20%) adverse reactions, including laboratory abnormalities, were increased glucose, increased aspartate aminotransferase, decreased lymphocytes, increased creatinine, rash, fatigue, peripheral neuropathy, decreased albumin, decreased hemoglobin, alopecia, decreased appetite, decreased neutrophils, decreased sodium, increased alanine aminotransferase, decreased phosphate, diarrhea, nausea, pruritus, increased urate, dry eye, dysgeusia, constipation, increased lipase, decreased weight, decreased platelets, abdominal pain, and dry skin.
The data described in the following section reflects exposure to PADCEV in combination with intravenous pembrolizumab from EV‑302, the dose escalation cohort, Cohort A and Cohort K of EV-103, EV-303, and EV-304. Patients from EV-302 and EV-103 received PADCEV 1.25 mg/kg in combination with intravenous pembrolizumab until disease progression or unacceptable toxicity. Patients from EV-303 and EV-304 received PADCEV 1.25 mg/kg in combination with intravenous pembrolizumab for 9 cycles or until disease progression or unacceptable toxicity.
The data described in the following section also reflects exposure to PADCEV as a single agent from an open-label, randomized, trial (EV‑301) and Cohort 1 and Cohort 2 of an open-label, single arm, two cohort trial (EV-201). Patients received PADCEV 1.25 mg/kg until disease progression or unacceptable toxicity.
Neoadjuvant and Adjuvant Treatment of Patients with MIBC Who Are Cisplatin-Eligible
EV-304
The safety of PADCEV in combination with intravenous pembrolizumab as neoadjuvant treatment and continued after radical cystectomy (RC) as adjuvant treatment was evaluated in an open-label, randomized, active-controlled, multicenter trial (EV-304) in patients with previously untreated MIBC who were eligible for cisplatin-based chemotherapy. Patients received either PADCEV 1.25 mg/kg in combination with intravenous pembrolizumab (n=403) before and after RC with pelvic lymph node dissection (PLND) or chemotherapy (gemcitabine with cisplatin) before RC with PLND (n=396) [see Clinical Studies (14)].
For the 403 patients who received PADCEV in the neoadjuvant phase, the median duration of exposure to PADCEV was 2.3 months (range: 0.03 to 4 months) and the median number of cycles of PADCEV was 4 (range: 1, 4) in the neoadjuvant phase. Out of 262 patients who received adjuvant treatment in the PADCEV in combination with pembrolizumab arm, 225 patients received PADCEV. The median duration of exposure to PADCEV was 3 months (range: 0.03 to 18.3 months) and the median number of cycles of PADCEV was 5 (range: 1, 5) for patients who received PADCEV in the adjuvant phase. Across the combined neoadjuvant and adjuvant phases (n=403), the median number of cycles of PADCEV was 6 (range: 1, 9) out of a planned 9 cycles.
Table 5 summarizes the most common (≥20%) adverse reactions in EV-304.
Adverse Reaction | Perioperative PADCEV in combination | Neoadjuvant Gemcitabine | ||
All Grades* | Grade 3-4 | All Grades* | Grade 3-4 | |
Skin and subcutaneous tissue disorders | ||||
Rash† | 63 | 12 | 9 | 0.3 |
Pruritus | 46 | 3.2 | 4.5 | 0 |
Alopecia | 32 | 0.5 | 11 | 0 |
General disorders and administration site conditions | ||||
Fatigue† | 48 | 2.7 | 49 | 2.3 |
Nervous system disorders | ||||
Peripheral neuropathy† | 43 | 3 | 11 | 0.8 |
Dysgeusia† | 28 | 0.2 | 10 | 0 |
Gastrointestinal disorders | ||||
Diarrhea† | 36 | 3.2 | 16 | 1.3 |
Nausea | 28 | 1 | 47 | 0.5 |
Constipation | 27 | 0.7 | 37 | 0.5 |
Metabolism and nutrition disorders | ||||
Decreased appetite | 29 | 1 | 18 | 0.5 |
Hyperglycemia† | 20 | 7 | 7 | 0.8 |
Infections and Infestations | ||||
Urinary tract infection | 25 | 10 | 21 | 10 |
Eye disorders | ||||
Dry eye† | 25 | 0 | 1.3 | 0 |
Investigations | ||||
Decreased weight | 22 | 2.5 | 6 | 0.3 |
Clinically relevant adverse reactions (<20%) include dry skin (16%), vomiting (13%), hypothyroidism (12%), pneumonitis/ILD (8%), skin hyperpigmentation (3.5%), myositis (0.7%), infusion site extravasation (0.5%), and myasthenia gravis (0.2%).
| ||||
Laboratory Abnormality* | Perioperative PADCEV in | Neoadjuvant Gemcitabine | ||
All Grades† | Grade 3-4 | All Grades† | Grade 3-4 | |
Hematology | ||||
Decreased hemoglobin | 70 | 8 | 92 | 20 |
Decreased lymphocytes | 52 | 17 | 46 | 11 |
Decreased neutrophils | 32 | 13 | 75 | 40 |
Chemistry | ||||
Increased aspartate aminotransferase | 69 | 7 | 23 | 0.5 |
Increased alanine aminotransferase | 67 | 8 | 30 | 0 |
Increased creatinine | 49 | 8 | 53 | 6 |
Decreased sodium | 43 | 4.2 | 39 | 1.3 |
Decreased albumin | 42 | 3.3 | 36 | 1.8 |
Increased potassium | 35 | 4.7 | 31 | 5 |
Decreased potassium | 22 | 3 | 20 | 2.8 |
Neoadjuvant Phase of EV-304
A total of 403 patients received at least one dose of PADCEV in combination with intravenous pembrolizumab as neoadjuvant treatment before receiving RC.
In the neoadjuvant phase, serious adverse reactions occurred in 27% of patients receiving PADCEV in combination with intravenous pembrolizumab. The most common serious adverse reactions (≥1.5%) were rash (3.2%), pneumonitis/ILD (2.2%), and diarrhea (1.7%). Fatal adverse reactions occurred in 1.7% of patients, including multiple organ dysfunction syndrome (0.5%) and COVID-19 pneumonia, cardiac arrest, pneumonia, septic shock, and urosepsis (0.2% each). Additional fatal adverse reactions were reported in 2 patients in the post-surgery phase before adjuvant treatment started, including pneumonia and sepsis (1 patient each).
Adverse reactions leading to discontinuation of PADCEV in the neoadjuvant phase occurred in 21% of patients. The most common adverse reactions (≥1%) leading to discontinuation of PADCEV were peripheral neuropathy (5%) and rash (3.5%).
Adverse reactions leading to dose interruption of PADCEV in the neoadjuvant phase occurred in 35% of patients. The most common adverse reactions (≥2%) leading to dose interruption of PADCEV were rash (10%), increased alanine aminotransferase (4%), neutropenia (3.7%), and hyperglycemia (3%).
Adverse reactions leading to dose reduction of PADCEV in the neoadjuvant phase occurred in 15% of patients. The most common adverse reactions (≥1%) leading to dose reduction of PADCEV were rash (9%) and pruritus (2%).
Of the 403 patients in the PADCEV in combination with intravenous pembrolizumab arm who received neoadjuvant treatment, 13 (3.2%) patients did not receive surgery due to adverse reactions. The adverse reactions that led to cancellation of surgery were multiple organ dysfunction syndrome (0.5%) and adenocarcinoma of colon, COVID-19 pneumonia, cardiac arrest, chronic obstructive pulmonary disease, coronary artery disease, glomerulonephritis, immune-mediated lung disease, myocarditis, pneumonia, pneumonitis, and urosepsis (0.2% each).
Of the 351 patients who received neoadjuvant treatment with PADCEV in combination with intravenous pembrolizumab and underwent RC, 26 (7%) patients experienced delay of surgery (defined as time from last neoadjuvant treatment to surgery exceeding 8 weeks) due to adverse reactions.
Adjuvant Phase of EV-304
Patients who did not proceed to surgery were ineligible for adjuvant treatment. Of the 351 patients who underwent surgery, 225 patients received adjuvant treatment with PADCEV with or without intravenous pembrolizumab. Of the 126 patients who did not receive adjuvant PADCEV, discontinuation of PADCEV prior to the adjuvant phase was due to an adverse event in 65 patients.
In the adjuvant phase, serious adverse reactions occurred in 36% of patients receiving PADCEV. The most common serious adverse reactions (≥1.5%) in the adjuvant phase in patients who received adjuvant PADCEV included urinary tract infection (8%), sepsis (2.2%), and diarrhea, hyperglycemia, pneumonitis/ILD, and urosepsis (1.8% each). Fatal adverse reactions in the adjuvant phase in patients who received adjuvant PADCEV occurred in 3.1% of patients and included cardiac arrest, death, duodenal ulcer perforation, acute pancreatitis, renal failure, small cell lung cancer, and toxic shock syndrome (0.4% each).
Adverse reactions leading to discontinuation of PADCEV in the adjuvant phase occurred in 16% of patients who received PADCEV in the adjuvant phase. The most common adverse reactions (≥1%) leading to discontinuation of PADCEV were rash (3.6%), peripheral neuropathy (1.8%), and urinary tract infection (1.3%).
Adverse reactions leading to dose interruption of PADCEV in the adjuvant phase occurred in 34% of patients who received PADCEV in the adjuvant phase. The most common adverse reactions (≥2%) leading to dose interruption of PADCEV were diarrhea and urinary tract infection (5% each), rash (4%), and COVID-19 (2.7%).
Adverse reactions leading to dose reduction of PADCEV in the adjuvant phase occurred in 5% of patients who received PADCEV in the adjuvant phase. The most common adverse reaction (>1%) resulting in dose reduction of PADCEV in the adjuvant phase included rash (1.3%).
Neoadjuvant and Adjuvant Treatment of Patients with MIBC Who Are Cisplatin-Ineligible
EV-303
The safety of PADCEV in combination with intravenous pembrolizumab as neoadjuvant treatment and continued after RC as adjuvant treatment was evaluated in an open-label, randomized, multicenter trial (EV-303) in patients with previously untreated MIBC who were ineligible for or declined cisplatin-based chemotherapy. Patients received PADCEV 1.25 mg/kg in combination with intravenous pembrolizumab (n=167) before and after RC with PLND or RC with PLND alone (n=159) [see Clinical Studies (14)].
For the 167 patients who received PADCEV in the neoadjuvant phase, the median duration of exposure to PADCEV was 1.6 months (range: 0.03 to 2.8 months) and the median number of cycles of PADCEV was 3 (range: 1, 3) in the neoadjuvant phase. Out of 100 patients who received adjuvant treatment in the PADCEV in combination arm, 92 patients received PADCEV. The median duration of exposure to PADCEV was 3.7 months (range: 0.03 to 7.6 months) and the median number of cycles of PADCEV was 6 (range: 1, 6) for patients who received PADCEV in the adjuvant phase. Across the combined neoadjuvant and adjuvant phases (n=167), the median number of cycles of PADCEV was 5 (range: 1, 9) out of a planned 9 cycles.
Table 7 summarizes the most common (≥20%) adverse reactions in EV-303.
Adverse Reaction | Perioperative PADCEV in combination | RC with PLND alone | ||
All Grades* | Grade 3-4 | All Grades* | Grade 3-4 | |
Skin and subcutaneous tissue disorders | ||||
Rash† | 54 | 7 | 1.3 | 0 |
Pruritus | 47 | 3 | 0 | 0 |
Alopecia | 35 | 0.6 | 0 | 0 |
General disorders and administration site conditions | ||||
Fatigue† | 47 | 4.2 | 6 | 0.6 |
Nervous system disorders | ||||
Peripheral neuropathy† | 39 | 3 | 1.9 | 0 |
Dysgeusia† | 35 | 0 | 0 | 0 |
Gastrointestinal disorders | ||||
Diarrhea† | 34 | 5 | 3.1 | 1.3 |
Constipation | 28 | 1.8 | 8 | 0 |
Nausea | 26 | 1.2 | 8 | 0.6 |
Metabolism and nutrition disorders | ||||
Decreased appetite | 28 | 0.6 | 1.9 | 0 |
Infections and infestations | ||||
Urinary tract infection | 24 | 12 | 13 | 11 |
Eye disorders | ||||
Dry eye† | 21 | 0 | 0 | 0 |
Investigations | ||||
Decreased weight | 20 | 0 | 3.1 | 0 |
Clinically relevant adverse reactions (<20%) include dry skin (15%), hypothyroidism (14%), vomiting (9%), pneumonitis/ILD (4.2%), skin hyperpigmentation (3%), infusion site extravasation (1.2%), and myasthenia gravis and myositis (0.6% each).
| ||||
Laboratory Abnormality* | Perioperative PADCEV in | RC with PLND alone | ||
All Grades† | Grade 3-4 | All Grades† | Grade 3-4 | |
Chemistry | ||||
Increased glucose | 72 | 12 | 24 | 1.7 |
Increased aspartate aminotransferase | 55 | 6 | 11 | 1.8 |
Increased alanine aminotransferase | 53 | 4.8 | 13 | 0.9 |
Increased creatinine | 47 | 8 | 31 | 2.5 |
Decreased sodium | 44 | 13 | 18 | 7 |
Increased potassium | 39 | 7 | 20 | 6 |
Decreased phosphate | 26 | 6 | 1.8 | 0 |
Hematology | ||||
Decreased hemoglobin | 60 | 13 | 48 | 8 |
Decreased lymphocytes | 40 | 8 | 17 | 1.7 |
Neoadjuvant Phase of EV-303
A total of 167 patients received at least one dose of PADCEV in combination with intravenous pembrolizumab as neoadjuvant treatment before receiving RC.
In the neoadjuvant phase, serious adverse reactions occurred in 27% of patients receiving PADCEV in combination with intravenous pembrolizumab. The most frequent (≥2%) serious adverse reactions were urinary tract infection (3.6%) and hematuria (2.4%). Fatal adverse reactions occurred in 1.2% of patients including myasthenia gravis and TEN (0.6% each). Additional fatal adverse reactions were reported in 2.7% of patients in the post-surgery phase before adjuvant treatment started, including sepsis and intestinal obstruction (1.4% each).
Adverse reactions leading to discontinuation of PADCEV in the neoadjuvant phase occurred in 22% of patients. The most common adverse reactions (≥1%) leading to discontinuation of PADCEV were rash (4.8%), peripheral neuropathy (2.4%), and diarrhea, dysgeusia, fatigue, pruritus, and TEN (1.2% each).
Adverse reactions leading to dose interruption of PADCEV in the neoadjuvant phase occurred in 29% of patients. The most common adverse reactions (≥2%) leading to dose interruption of PADCEV were rash (8%), neutropenia (3.6%), hyperglycemia (3%), and fatigue and peripheral neuropathy (2.4% each).
Adverse reactions leading to dose reduction of PADCEV in the neoadjuvant phase occurred in 13% of patients. The most common adverse reactions (≥1%) leading to dose reduction of PADCEV were rash (4.8%), pruritus (1.8%), and peripheral neuropathy, increase alanine aminotransferase, increased aspartate aminotransferase, decreased appetite, fatigue, neutropenia, and decreased weight (1.2% each).
Of the 167 patients in the PADCEV in combination with intravenous pembrolizumab arm who received neoadjuvant treatment, 7 (4.2%) patients did not receive surgery due to adverse reactions. The most common adverse reactions that led to cancellation of surgery were acute myocardial infarction, bile duct cancer, colon cancer, respiratory distress, urinary tract infection and the deaths due to myasthenia gravis and TEN (0.6% each).
Of the 146 patients who received neoadjuvant treatment with PADCEV in combination with intravenous pembrolizumab and underwent RC, 6 (4.1%) patients experienced delay of surgery (defined as time from last neoadjuvant treatment to surgery exceeding 8 weeks) due to adverse reactions.
Adjuvant Phase of EV-303
Patients who did not proceed to surgery were ineligible for adjuvant treatment. Of the 146 patients who underwent surgery, 92 patients received adjuvant treatment with PADCEV with or without intravenous pembrolizumab. Of the 54 patients who did not receive adjuvant PADCEV, discontinuation of PADCEV prior to the adjuvant phase was due to an adverse event in 27 patients.
In the adjuvant phase, serious adverse reactions occurred in 43% of patients receiving PADCEV. The most frequent (≥2%) serious adverse reactions were urinary tract infection (8%), acute kidney injury, pyelonephritis, and urosepsis (4.3% each), and hypokalemia, intestinal obstruction, and sepsis (2.2% each). Fatal adverse reactions occurred in 8% of patients who received PADCEV in the adjuvant phase, including urosepsis, hemorrhage intracranial, death, myocardial infarction, multiple organ dysfunction syndrome, and pneumonia pseudomonal (1.1% each).
Adverse reactions leading to discontinuation of PADCEV in the adjuvant phase occurred in 28% of patients who received PADCEV in the adjuvant phase. The most common adverse reactions (≥2%) leading to discontinuation of PADCEV were peripheral neuropathy (5%) and rash (4.3%).
Adverse reactions leading to dose interruption of PADCEV in the adjuvant phase occurred in 39% of patients who received PADCEV in the adjuvant phase. The most common adverse reactions (≥2%) leading to dose interruption of PADCEV were rash (7%), diarrhea and urinary tract infection (5% each), fatigue (4.3%), pruritus (3.3%), and peripheral neuropathy and pyelonephritis (2.2% each).
Adverse reactions leading to dose reduction of PADCEV in the adjuvant phase occurred in 8% of patients who received PADCEV in the adjuvant phase. The most common adverse reaction (≥2%) leading to dose reduction of PADCEV was weight decreased (2.2%).
Previously Untreated LA/mUC
EV-302
The safety of PADCEV in combination with intravenous pembrolizumab was evaluated in an open-label, randomized, multicenter trial (EV-302) in patients with la/mUC. Patients received either PADCEV 1.25 mg/kg and pembrolizumab (n=440) or gemcitabine and platinum chemotherapy (either cisplatin or carboplatin) (n=433). Among patients who received PADCEV and pembrolizumab, the median duration of exposure for PADCEV was 7 months (range: 0.3 to 31.9 months).
Serious adverse reactions occurred in 50% of patients treated with PADCEV in combination with intravenous pembrolizumab. The most common serious adverse reactions (≥2%) were rash (6%), acute kidney injury (5%), pneumonitis/ILD (4.5%), urinary tract infection (3.6%), diarrhea (3.2%), pneumonia (2.3%), pyrexia (2%), and hyperglycemia (2%).
Fatal adverse reactions occurred in 3.9% of patients treated with PADCEV in combination with intravenous pembrolizumab including acute respiratory failure (0.7%), pneumonia (0.5%), and pneumonitis/ILD (0.2%).
Adverse reactions leading to discontinuation of PADCEV occurred in 35% of patients. The most common adverse reactions (≥2%) leading to discontinuation of PADCEV were peripheral neuropathy (15%), rash (4.1%), and pneumonitis/ILD (2.3%).
Adverse reactions leading to dose interruption of PADCEV occurred in 73% of patients. The most common adverse reactions (≥2%) leading to dose interruption of PADCEV were peripheral neuropathy (22%), rash (16%), COVID-19 (10%), diarrhea (5%), pneumonitis/ILD (4.8%), fatigue (3.9%), hyperglycemia (3.6%), increased alanine aminotransferase (3%), and pruritus (2.5%).
Adverse reactions leading to dose reduction of PADCEV occurred in 42% of patients. The most common adverse reactions (≥2%) leading to dose reduction of PADCEV were rash (16%), peripheral neuropathy (13%), and fatigue (2.7%).
Table 9 summarizes the most common (≥15%) adverse reactions in EV-302.
Adverse Reaction | PADCEV in combination with | Chemotherapy | ||
All Grades* | Grade 3-4 | All Grades* | Grade 3-4 | |
Skin and subcutaneous tissue disorders | ||||
Rash† | 68 | 15 | 15 | 0 |
Pruritus | 41 | 1.1 | 7 | 0 |
Alopecia | 35 | 0.5 | 8 | 0.2 |
Dry skin | 17 | 0.2 | 1 | 0 |
General disorders and administration site conditions | ||||
Fatigue† | 51 | 6 | 57 | 7 |
Pyrexia | 18 | 0.7 | 16 | 1.2 |
Nervous system disorders | ||||
Peripheral neuropathy† | 67 | 8 | 14 | 0 |
Dysgeusia | 21 | 0 | 9 | 0 |
Metabolism and nutrition disorders | ||||
Decreased appetite | 33 | 1.8 | 26 | 1.8 |
Gastrointestinal disorders | ||||
Diarrhea | 38 | 4.5 | 16 | 1.4 |
Nausea | 26 | 1.6 | 41 | 2.8 |
Constipation | 26 | 0 | 34 | 0.7 |
Investigations | ||||
Decreased weight | 33 | 3.6 | 9 | 0.2 |
Eye disorders | ||||
Dry eye† | 24 | 0 | 2.1 | 0 |
Infections and infestations | ||||
Urinary tract infection | 21 | 5 | 19 | 8 |
Clinically relevant adverse reactions (<15%) include vomiting (12%), pneumonitis/ILD and hypothyroidism (10% each), blurred vision and skin hyperpigmentation (6% each), infusion site extravasation (1.8%), and myositis (0.5%).
Laboratory Abnormality* | PADCEV in combination with | Chemotherapy | ||
All Grades† | Grade 3-4 | All Grades† | Grade 3-4 | |
Chemistry | ||||
Increased aspartate aminotransferase | 75 | 5 | 39 | 3 |
Increased creatinine | 71 | 3 | 68 | 3 |
Increased glucose | 66 | 14 | 54 | 5 |
Increased alanine aminotransferase | 59 | 5 | 49 | 3 |
Decreased sodium | 46 | 13 | 47 | 13 |
Decreased phosphate | 44 | 9 | 36 | 9 |
Decreased albumin | 39 | 2 | 35 | 0.5 |
Decreased potassium | 26 | 5 | 16 | 3 |
Increased potassium | 24 | 1 | 36 | 4 |
Increased calcium | 21 | 1 | 14 | 0.2 |
Hematology | ||||
Decreased lymphocytes | 58 | 15 | 59 | 17 |
Decreased hemoglobin | 53 | 7 | 89 | 33 |
Decreased neutrophils | 30 | 9 | 80 | 50 |
Previously Untreated Patients with LA/mUC Who Are Cisplatin-Ineligible
EV-103
The safety of PADCEV was evaluated in combination with intravenous pembrolizumab in a multi cohort trial (EV-103) in 121 patients with la/mUC who were not eligible for cisplatin-containing chemotherapy and received at least one dose of PADCEV 1.25 mg/kg and pembrolizumab [see Clinical Studies (14)]. The median duration of exposure to PADCEV was 7 months (range: 0.6 to 33 months).
Serious adverse reactions occurred in 50% of patients treated with PADCEV in combination with intravenous pembrolizumab. The most common serious adverse reactions (≥2%) were acute kidney injury (7%), urinary tract infection (7%), urosepsis (5%), sepsis (3.3%), pneumonia (3.3%), hematuria (3.3%), pneumonitis/ILD (3.3%), urinary retention (2.5%), diarrhea (2.5%), myasthenia gravis (2.5%), myositis (2.5%), anemia (2.5%), and hypotension (2.5%).
Fatal adverse reactions occurred in 5% of patients treated with PADCEV in combination with intravenous pembrolizumab including sepsis (1.6%), bullous dermatitis (0.8%), myasthenia gravis (0.8%), and pneumonitis/ILD (0.8%).
Adverse reactions leading to discontinuation of PADCEV occurred in 36% of patients. The most common adverse reactions (≥2%) leading to discontinuation of PADCEV were peripheral neuropathy (20%) and rash (6%).
Adverse reactions leading to dose interruption of PADCEV occurred in 69% of patients. The most common adverse reactions (≥2%) leading to dose interruption of PADCEV were peripheral neuropathy (18%), rash (12%), increased lipase (6%), pneumonitis/ILD (6%), diarrhea (4.1%), acute kidney injury (3.3%), increased alanine aminotransferase (3.3%), fatigue (3.3%), neutropenia (3.3%), urinary tract infection (3.3%), increased amylase (2.5%), anemia (2.5%), COVID-19 (2.5%), hyperglycemia (2.5%), and hypotension (2.5%).
Adverse reactions leading to dose reduction of PADCEV occurred in 45% of patients. The most common adverse reactions (≥2%) leading to dose reduction of PADCEV were peripheral neuropathy (17%), rash (12%), fatigue (5%), neutropenia (5%), and diarrhea (4.1%).
Table 11 summarizes the most common (≥20%) adverse reactions in EV-103.
Adverse Reaction | PADCEV in combination with intravenous pembrolizumab | |
All Grades* | Grade 3-4 | |
Skin and subcutaneous tissue disorders | ||
Rash† | 71 | 21 |
Alopecia | 52 | 0 |
Pruritus | 40 | 3.3 |
Dry skin | 21 | 0.8 |
Nervous system disorders | ||
Peripheral neuropathy† | 65 | 3.3 |
Dysgeusia | 35 | 0 |
Dizziness | 23 | 0 |
General disorders and administration site conditions | ||
Fatigue | 60 | 11 |
Peripheral edema | 26 | 0 |
Investigations | ||
Decreased weight | 48 | 5 |
Gastrointestinal disorders | ||
Diarrhea | 45 | 7 |
Nausea | 36 | 0.8 |
Constipation | 27 | 0 |
Metabolism and nutrition disorders | ||
Decreased appetite | 38 | 0.8 |
Infections and infestations | ||
Urinary tract infection | 30 | 12 |
Eye disorders | ||
Dry eye | 25 | 0 |
Musculoskeletal and connective tissue disorders | ||
Arthralgia | 23 | 1.7 |
Clinically relevant adverse reactions (<20%) include vomiting (20%), pyrexia (18%), hypothyroidism (11%), pneumonitis/ILD (10%), skin hyperpigmentation (8%), myasthenia gravis (2.5%), myositis (3.3%), and infusion site extravasation (0.8%).
| Laboratory Abnormality* | PADCEV in combination with intravenous pembrolizumab | |
|---|---|---|
| All Grades† % | Grade 3-4 % | |
Chemistry | ||
Increased glucose | 74 | 13 |
Increased aspartate aminotransferase | 73 | 9 |
Increased creatinine | 69 | 3.3 |
Decreased sodium | 60 | 19 |
Increased alanine aminotransferase | 60 | 7 |
Increased lipase | 59 | 32 |
Decreased albumin | 59 | 4.2 |
Decreased phosphate | 51 | 15 |
Decreased potassium | 35 | 8 |
Increased potassium | 27 | 1.7 |
Increased calcium | 27 | 4.2 |
Hematology | ||
Decreased hemoglobin | 69 | 15 |
Decreased lymphocytes | 64 | 17 |
Decreased neutrophils | 32 | 12 |
Previously Treated LA/mUC
EV-301
The safety of PADCEV was evaluated as a single agent in EV-301 in patients with la/mUC (n=296) who received at least one dose of PADCEV 1.25 mg/kg and who were previously treated with a PD-1 or PD-L1 inhibitor and a platinum-based chemotherapy [see Clinical Studies (14)]. Routine ophthalmologic exams were not conducted in EV-301. The median duration of exposure to PADCEV was 5 months (range: 0.5 to 19 months).
Serious adverse reactions occurred in 47% of patients treated with PADCEV. The most common serious adverse reactions (≥2%) were urinary tract infection, acute kidney injury (7% each), and pneumonia (5%). Fatal adverse reactions occurred in 3% of patients, including multiorgan dysfunction (1%), hepatic dysfunction, septic shock, hyperglycemia, pneumonitis/ILD, and pelvic abscess (0.3% each).
Adverse reactions leading to discontinuation occurred in 17% of patients; the most common adverse reactions (≥2%) leading to discontinuation were peripheral neuropathy (5%) and rash (4%).
Adverse reactions leading to dose interruption occurred in 61% of patients; the most common adverse reactions (≥4%) leading to dose interruption were peripheral neuropathy (23%), rash (11%), and fatigue (9%).
Adverse reactions leading to dose reduction occurred in 34% of patients; the most common adverse reactions (≥2%) leading to dose reduction were peripheral neuropathy (10%), rash (8%), decreased appetite (3%), and fatigue (3%).
Table 13 summarizes the most common (≥15%) adverse reactions in EV-301.
Adverse Reaction | PADCEV | Chemotherapy | ||
All Grades* | Grade 3-4 | All Grades* | Grade 3-4 | |
Skin and subcutaneous tissue disorders | ||||
Rash† | 54 | 14 | 20 | 0.3 |
Alopecia | 47 | 0 | 38 | 0 |
Pruritus | 34 | 2 | 7 | 0 |
Dry skin | 17 | 0 | 4 | 0 |
General disorders and administration site conditions | ||||
Fatigue† | 50 | 9 | 40 | 7 |
Pyrexia† | 22 | 2 | 14 | 0 |
Nervous system disorders | ||||
Peripheral neuropathy† | 50 | 5 | 34 | 3 |
Dysgeusia† | 26 | 0 | 8 | 0 |
Metabolism and nutrition disorders | ||||
Decreased appetite | 41 | 5 | 27 | 2 |
Gastrointestinal disorders | ||||
Diarrhea† | 35 | 4 | 23 | 2 |
Nausea | 30 | 1 | 25 | 2 |
Constipation | 28 | 1 | 25 | 2 |
Abdominal Pain† | 20 | 1 | 14 | 3 |
Musculoskeletal and connective tissue disorders | ||||
Musculoskeletal Pain† | 25 | 2 | 35 | 5 |
Eye Disorders | ||||
Dry eye† | 24 | 0.7 | 6 | 0.3 |
Infections and infestations | ||||
Urinary Tract Infection† | 17 | 6 | 13 | 3 |
Vascular disorders | ||||
Hemorrhage† | 17 | 3 | 13 | 2 |
Investigations | ||||
Decreased weight | 16 | 0.3 | 7 | 0 |
Clinically relevant adverse reactions (<15%) include vomiting (14%), increased aspartate aminotransferase (12%), hyperglycemia (10%), increased alanine aminotransferase (9%), skin hyperpigmentation (8%), pneumonitis/ILD (3%), and infusion site extravasation (0.7%).
Laboratory Abnormality* | PADCEV | Chemotherapy | ||
Grades 2-4† | Grade 3-4 | Grades 2-4† | Grade 3-4 | |
Hematology | ||||
Decreased lymphocytes | 41 | 14 | 34 | 18 |
Decreased hemoglobin | 28 | 4 | 42 | 14 |
Decreased neutrophils | 27 | 12 | 25 | 17 |
Chemistry | ||||
Decreased phosphate | 39 | 8 | 24 | 6 |
Increased glucose (non‑fasting) | 33 | 9 | 27 | 6 |
Increased creatinine | 18 | 2 | 13 | 0 |
Decreased potassium | 16 | 2 | 7 | 3 |
Increased lipase | 13 | 8 | 7 | 4 |
Decreased sodium | 8 | 8 | 5 | 5 |
EV-201, Cohort 1
The safety of PADCEV was evaluated as a single agent in EV-201, Cohort 1 in patients (n=125) with la/mUC who had received prior treatment with a PD-1 or PD-L1 inhibitor and platinum-based chemotherapy [see Clinical Studies (14)]. Patients received PADCEV 1.25 mg/kg on Days 1, 8, and 15 of a 28-day cycle until disease progression or unacceptable toxicity. The median duration of exposure to PADCEV was 4.6 months (range: 0.5 to 15.6 months).
Serious adverse reactions occurred in 46% of patients treated with PADCEV. The most common serious adverse reactions (≥3%) were urinary tract infection (6%), cellulitis (5%), febrile neutropenia (4%), diarrhea (4%), sepsis (3%), acute kidney injury (3%), dyspnea (3%), and rash (3%). Fatal adverse reactions occurred in 3.2% of patients, including acute respiratory failure, aspiration pneumonia, cardiac disorder, sepsis, and pneumonitis/ILD (each 0.8%).
Adverse reactions leading to discontinuation occurred in 16% of patients; the most common adverse reaction leading to discontinuation was peripheral neuropathy (6%).
Adverse reactions leading to dose interruption occurred in 64% of patients; the most common adverse reactions leading to dose interruption were peripheral neuropathy (18%), rash (9%), and fatigue (6%).
Adverse reactions leading to dose reduction occurred in 34% of patients; the most common adverse reactions leading to dose reduction were peripheral neuropathy (12%), rash (6%), and fatigue (4%).
Table 15 summarizes the All Grades and Grades 3-4 adverse reactions reported in patients in EV-201, Cohort 1.
| Adverse Reaction | PADCEV n=125 | |
|---|---|---|
| All Grades* % | Grade 3-4 % | |
General disorders and administration site conditions | ||
Fatigue† | 56 | 6 |
Nervous system disorders | ||
Peripheral neuropathy† | 56 | 4 |
Dysgeusia | 42 | 0 |
Metabolism and nutrition disorders | ||
Decreased appetite | 52 | 2 |
Skin and subcutaneous tissue disorders | ||
Rash† | 52 | 13 |
Alopecia | 50 | 0 |
Dry skin | 26 | 0 |
Pruritus† | 26 | 2 |
Gastrointestinal disorders | ||
Nausea | 45 | 3 |
Diarrhea† | 42 | 6 |
Vomiting | 18 | 2 |
Eye disorders | ||
Dry eye† | 40 | 0 |
Clinically relevant adverse reactions (<15%) include skin hyperpigmentation (14%), herpes zoster (3%), pneumonitis/ILD (2%), and infusion site extravasation (2%).
| Laboratory Abnormality* | PADCEV | |
|---|---|---|
| Grades 2-4† % | Grade 3-4 % | |
Hematology | ||
Decreased hemoglobin | 34 | 10 |
Decreased lymphocytes | 32 | 10 |
Decreased neutrophils | 14 | 5 |
Chemistry | ||
Decreased phosphate | 34 | 10 |
Increased glucose (non-fasting) | 27 | 8 |
Increased creatinine | 20 | 2 |
Decreased potassium | 19‡ | 1 |
Increased lipase | 14 | 9 |
Decreased sodium | 8 | 8 |
Increased urate | 7 | 7 |
EV-201, Cohort 2
The safety of PADCEV was evaluated as a single agent in EV-201, Cohort 2 in patients with la/mUC (n=89) who received at least one dose of PADCEV 1.25 mg/kg and had prior treatment with a PD-1 or PD-L1 inhibitor and were not eligible for cisplatin-based chemotherapy. The median duration of exposure was 5.98 months (range: 0.3 to 24.6 months).
Serious adverse reactions occurred in 39% of patients treated with PADCEV. The most common serious adverse reactions (≥3%) were pneumonia, sepsis, and diarrhea (5% each). Fatal adverse reactions occurred in 8% of patients, including acute kidney injury (2.2%), metabolic acidosis, sepsis, multiorgan dysfunction, pneumonia, and pneumonitis/ILD (1.1% each).
Adverse reactions leading to discontinuation occurred in 20% of patients; the most common adverse reaction (≥2%) leading to discontinuation was peripheral neuropathy (7%).
Adverse reactions leading to dose interruption occurred in 60% of patients; the most common adverse reactions (≥3%) leading to dose interruption were peripheral neuropathy (19%), rash (9%), fatigue (8%), diarrhea (5%), increased aspartate aminotransferase (3%), and hyperglycemia (3%).
Adverse reactions leading to dose reduction occurred in 49% of patients; the most common adverse reactions (≥3%) leading to dose reduction were peripheral neuropathy (19%), rash (11%), and fatigue (7%).
Table 17 summarizes the All Grades and Grades 3-4 adverse reactions reported in patients in EV-201, Cohort 2.
| Adverse Reaction | PADCEV n=89 | |
|---|---|---|
| All Grades* (%) | Grades 3-4 (%) | |
Skin and subcutaneous tissue disorders | ||
Rash† | 66 | 17 |
Alopecia | 53 | 0 |
Pruritus | 35 | 3 |
Dry skin | 19 | 1 |
Nervous system disorders | ||
Peripheral neuropathy† | 58 | 8 |
Dysgeusia† | 29 | 0 |
General disorders and administration site conditions | ||
Fatigue† | 48 | 11 |
Metabolism and nutrition disorders | ||
Decreased appetite | 40 | 6 |
Hyperglycemia | 16 | 9 |
Gastrointestinal disorders | ||
Diarrhea† | 36 | 8 |
Nausea | 30 | 1 |
Investigations | ||
Decreased weight | 35 | 1 |
Eye disorders | ||
Dry eye† | 30 | 0 |
Clinically relevant adverse reactions (<15%) include vomiting (13%), increased aspartate aminotransferase (12%), increased lipase (11%), increased alanine aminotransferase (10%), skin hyperpigmentation (4%), pneumonitis/ILD (4%), and infusion site extravasation (1%).
| Laboratory Abnormality* | PADCEV n=88* | |
|---|---|---|
| Grades 2-4† % | Grade 3-4 % | |
Hematology | ||
Decreased lymphocytes | 43 | 15 |
Decreased hemoglobin | 34 | 5 |
Decreased neutrophils | 20 | 9 |
Chemistry | ||
Increased glucose (non-fasting) | 36 | 13 |
Decreased phosphate | 25 | 7 |
Increased creatinine | 23 | 3 |
Increased lipase | 18 | 11 |
Increased urate | 9 | 9 |
Increased potassium | 8 | 6 |
Decreased sodium | 7 | 7 |
The following adverse reactions have been identified during post-approval use of PADCEV. Because these reactions are reported voluntarily from a population of uncertain size, it is not always possible to reliably estimate their frequency or establish a causal relationship to drug exposure.
Skin and subcutaneous tissue disorders: Epidermal necrosis, SJS, and TEN [see Warnings and Precautions (5.1)].
PATIENT INFORMATION PADCEV® (PAD-sev) (enfortumab vedotin-ejfv) for injection | ||||
If your healthcare provider prescribes PADCEV in combination with the medicines pembrolizumab or pembrolizumab and berahyaluronidase alfa-pmph, also read the Medication Guide that comes with these medicines for additional important information. | ||||
What is the most important information I should know about PADCEV? PADCEV may cause serious side effects, including: Skin reactions. Skin reactions including severe skin reactions have happened in people treated with PADCEV and may be more common when PADCEV is given with pembrolizumab. In some cases, these severe skin reactions have caused death. Most severe skin reactions occurred during the first cycle of treatment but may happen later. Your healthcare provider will monitor you, may stop your treatment with PADCEV completely or for a period of time (temporarily), may change your dose, and may prescribe medicines if you get skin reactions. Tell your healthcare provider right away if you develop any of these signs of a new or worsening skin reaction: | ||||
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See “What are the possible side effects of PADCEV?” for more information about side effects. | ||||
What is PADCEV? PADCEV is a prescription medicine used to treat adults with bladder cancer and cancers of the urinary tract (renal pelvis, ureter, or urethra).
It is not known if PADCEV is safe and effective in children. | ||||
Before receiving PADCEV, tell your healthcare provider about all of your medical conditions, including if you:
Tell your healthcare provider about all the medicines you take, including prescription and over-the-counter medicines, vitamins, and herbal supplements. Taking PADCEV with certain other medicines may cause side effects. | ||||
How will I receive PADCEV?
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What are the possible side effects of PADCEV? PADCEV may cause serious side effects, including:
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Your healthcare provider may decrease your dose of PADCEV, or temporarily or completely stop your treatment with PADCEV if you get severe side effects. The most common side effects of PADCEV when used in combination with pembrolizumab include: | ||||
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The most common side effects of PADCEV when used alone include: | ||||
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PADCEV may cause fertility problems in females and males, which may affect the ability to have children. Talk to your healthcare provider if you have concerns about fertility. These are not all of the possible side effects of PADCEV. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088. | ||||
General information about the safe and effective use of PADCEV. Medicines are sometimes prescribed for purposes other than those listed in a Patient Information leaflet. You can ask your pharmacist or healthcare provider for information about PADCEV that is written for healthcare professionals. | ||||
What are the ingredients in PADCEV? Active ingredient: enfortumab vedotin-ejfv Inactive ingredients: histidine, histidine hydrochloride monohydrate, polysorbate 20, and trehalose dihydrate. Manufactured and Marketed by: Astellas Pharma US, Inc., Northbrook, Illinois 60062 Distributed and Marketed by: Seagen Inc., Bothell, WA 98021 U.S. License 2124 PADCEV is a registered trademark jointly owned by Agensys, Inc. and Seagen Inc. ©2026 Agensys, Inc. and Seagen Inc. For more information, go to www.padcev.com or call 1-888-472-3238 10194-EV-US | ||||
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