Brand Name
Imfinzi
Generic Name
Durvalumab
View Brand Information FDA approval date: May 01, 2017
Classification: Programmed Death Ligand-1 Blocker
Form: Injection
What is Imfinzi (Durvalumab)?
IMFINZI is a programmed death-ligand 1 blocking antibody indicated: in combination with platinum-containing chemotherapy as neoadjuvant treatment, followed by IMFINZI continued as a single agent as adjuvant treatment after surgery, for the treatment of adult patients with resectable non-small cell lung cancer and no known epidermal growth factor receptor mutations or anaplastic lymphoma kinase rearrangements.
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Brand Information
IMFINZI (Durvalumab)
1DOSAGE FORMS AND STRENGTHS
Injection: 120 mg/2.4 mL (50 mg/mL) and 500 mg/10 mL (50 mg/mL) clear to opalescent, colorless to slightly yellow solution in a single-dose vial.
2CONTRAINDICATIONS
None.
3ADVERSE REACTIONS
The following adverse reactions are discussed in greater detail in other sections of the labeling.
- Immune-Mediated Adverse Reactions
- Infusion-Related Reactions
3.1Clinical Trials Experience
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 data described in the WARNINGS AND PRECAUTIONS section reflect exposure to IMFINZI as a single agent in a total of 1,889 patients enrolled in the PACIFIC study (a randomized, placebo-controlled study that enrolled 475 patients with unresectable Stage III NSCLC), Study 1108 (an open-label, single-arm, multicohort study that enrolled 970 patients with advanced solid tumors), and an additional open-label, single-arm study (ATLANTIC Study) that enrolled 444 patients with advanced solid tumors, including NSCLC. In these studies, IMFINZI was administered at a dose of 10 mg/kg every 2 weeks. Among the 1889 patients, 38% were exposed for 6 months or more and 18% were exposed for 12 months or more. The data also reflect exposure to IMFINZI 1,500 mg every 4 weeks as a single agent in 262 patients from the ADRIATIC study (a randomized, double-blind study in patients with LS-SCLC) and to IMFINZI in combination with chemotherapy in 265 patients from the CASPIAN study (a randomized, open-label study in patients with ES-SCLC) and in 338 patients from the TOPAZ-1 study (a randomized, double-blind study in patients with BTC). In the CASPIAN and TOPAZ-1 studies, IMFINZI was administered at a dose of 1,500 mg every 3 or 4 weeks.
The data also reflect exposure to IMFINZI 1,120 mg in combination with carboplatin and paclitaxel (every 3 weeks for up to 6 cycles) followed by IMFINZI 1,500 mg (every 4 weeks) as a single agent in 235 patients in DUO-E (a randomized, placebo-controlled trial in endometrial cancer). Among the 235 patients, 77% (181 patients) were exposed to IMFINZI for 6 months or more and 41% (96 patients) for 12 months or more.
The data also reflect exposure to IMFINZI 1,500 mg in combination with tremelimumab-actl 300 mg in 388 patients in HIMALAYA. In the HIMALAYA study patients received IMFINZI 1,500 mg in combination with tremelimumab-actl as a single intravenous infusion of 300 mg, followed by IMFINZI 1,500 mg every 4 weeks. The pooled safety population (N = 596) described in the WARNINGS AND PRECAUTIONS section reflect exposure to IMFINZI 1,500 mg in combination with tremelimumab-actl 75 mg and histology-based platinum chemotherapy regimens in 330 patients in POSEIDON
The data described in this section reflect exposure to IMFINZI in patients with unresectable Stage III NSCLC enrolled in the PACIFIC study, in patients with metastatic NSCLC enrolled in the POSEIDON study, in patients with LS-SCLC enrolled in the ADRIATIC study, in patients with ES-SCLC enrolled in the CASPIAN study, in patients with BTC enrolled in the TOPAZ‑1 study, in patients with uHCC included in the HIMALAYA study, in patients with dMMR endometrial cancer enrolled in the DUO-E study, in patients with resectable NSCLC enrolled in the AEGEAN study, in patients with MIBC enrolled in the NIAGARA study and in patients with resectable GC/GEJC enrolled in the MATTERHORN study.
Non-Small Cell Lung Cancer
Neoadjuvant and Adjuvant Treatment of Resectable NSCLC – AEGEAN
The safety of IMFINZI in combination with neoadjuvant platinum-containing chemotherapy followed by surgery, and continued adjuvant treatment with IMFINZI as a single agent after surgery, was investigated in AEGEAN, a randomized, double-blind, placebo-controlled, multicenter study for patients with resectable NSCLC (Stage IIA to select Stage IIIB [AJCC, 8
Safety data are available for the 799 patients who received IMFINZI in combination with chemotherapy (n=401) or placebo in combination with chemotherapy (n=398).
The median duration of exposure to IMFINZI 1,500 mg every 3 weeks in the neoadjuvant phase was 12 weeks (range: 0 to 19 weeks). The median duration of exposure to IMFINZI 1,500 mg every 4 weeks in the adjuvant phase was 37 weeks (range: 4 to 67 weeks). The median age of patients who received IMFINZI was 65 years (range: 30 to 88), 52% age 65 or older, 12% age 75 or older; 65% male; 54% White, 41% Asian, 1% Black, 3% Other races; and 17% Hispanic or Latino.
The most common adverse reactions (occurring in ≥ 20% of patients) were anemia, nausea, constipation, fatigue, musculoskeletal pain, and rash.
Table 5 summarizes the adverse reactions that occurred in (≥ 10%) patients treated with IMFINZI in combination with chemotherapy.
Table 6 summarizes the laboratory abnormalities in patients treated with IMFINZI in combination with chemotherapy.
Neoadjuvant Phase of AEGEAN
A total of 401 patients received at least 1 dose of IMFINZI in combination with platinum-containing chemotherapy as neoadjuvant treatment and 398 patients received at least 1 dose of placebo in combination with platinum-containing chemotherapy as neoadjuvant treatment.
Serious adverse reactions occurred in 21% of patients who received IMFINZI in combination with platinum-containing chemotherapy as neoadjuvant treatment; the most frequent (≥1%) serious adverse reactions were pneumonia (2.7%), anemia (1.5%), myelosuppression (1.5%), vomiting (1.2%), neutropenia (1%), and acute kidney injury (1%). Fatal adverse reactions occurred in 2% of patients, including death due to COVID-19 pneumonia (0.5%), sepsis (0.5%), myocarditis (0.2%), decreased appetite (0.2%), hemoptysis (0.2%), and death not otherwise specified (0.2%).
Permanent discontinuation of any study drug due to an adverse reaction occurred in 14% of patients who received IMFINZI in combination with platinum-containing chemotherapy as neoadjuvant treatment; the most frequent (>0.5%) adverse reactions that led to permanent discontinuation of any study drug were anemia (1.5%), neutropenia (0.7%), myelosuppression (0.7%), and periphery sensory neuropathy (0.7%). Permanent discontinuation of IMFINZI due to an adverse reaction occurred in 6.7% of patients who received IMFINZI in combination with platinum-containing chemotherapy as neoadjuvant treatment; the most frequent (≥0.5%) adverse reactions that led to permanent discontinuation of IMFINZI were peripheral sensory neuropathy (0.7%) and pneumonitis (0.5%).
Of the 401 IMFINZI-treated patients and 398 placebo-treated patients who received neoadjuvant treatment, 1.7% (n=7) and 1% (n=4), respectively, did not receive surgery due to adverse reactions. Adverse reactions that led to cancellation of surgery in the IMFINZI arm were COVID-19 pneumonia, HIV infection, pneumonitis, prostate cancer, colon cancer, pruritus, and colitis.
Of the 325 IMFINZI-treated patients who received surgery, 4% (n=15) experienced delay of surgery (a surgical delay is defined as on-study surgery occurring more than 40 days after the last dose of study treatment in the neoadjuvant period) due to adverse reactions. Of the 326 placebo-treated patients who received surgery, 4% (n=16) experienced delay of surgery due to adverse reactions.
Of the 325 IMFINZI-treated patients who received surgery, 6.5% (n=21) did not receive adjuvant treatment due to adverse reactions. Of the 326 placebo-treated patients who received surgery, 5.8% (n=19) did not receive adjuvant treatment due to adverse reactions.
Adjuvant Phase of AEGEAN
A total of 265 patients in the IMFINZI arm and 254 patients in the placebo arm received at least 1 dose of adjuvant treatment.
Of the patients who received single agent IMFINZI as adjuvant treatment, 13% experienced serious adverse reactions. The most frequent serious adverse reactions reported in >1% of patients were pneumonia (1.9%), pneumonitis (1.1%), and COVID-19 (1.1%). Four fatal adverse reactions occurred during the adjuvant phase of the study, including COVID-19 pneumonia, pneumonia aspiration, interstitial lung disease and aortic aneurysm. Permanent discontinuation of adjuvant IMFINZI due to an adverse reaction occurred in 8% of patients. The most frequent (≥0.5%) adverse reaction that led to permanent discontinuation of adjuvant IMFINZI was pneumonitis (1.1%) and rash (0.8%).
Unresectable Stage III NSCLC - PACIFIC
The safety of IMFINZI in patients with Stage III NSCLC who completed concurrent platinum-based chemoradiotherapy within 42 days prior to initiation of study drug was evaluated in the PACIFIC study, a multicenter, randomized, double-blind, placebo-controlled study. A total of 475 patients received IMFINZI 10 mg/kg intravenously every 2 weeks. The study excluded patients who had disease progression following chemoradiation, with active or prior autoimmune disease within 2 years of initiation of the study or with medical conditions that required systemic immunosuppression
The study population characteristics were: median age of 64 years (range: 23 to 90), 45% age 65 years or older, 70% male, 69% White, 27% Asian, 75% former smoker, 16% current smoker, and 51% had WHO performance status (PS) of 1. All patients received definitive radiotherapy as per protocol, of which 92% received a total radiation dose of 54 Gy to 66 Gy. The median duration of exposure to IMFINZI was 10 months (range: 0.2 to 12.6).
IMFINZI was discontinued due to adverse reactions in 15% of patients. The most common adverse reactions leading to IMFINZI discontinuation were pneumonitis or radiation pneumonitis in 6% of patients. Serious adverse reactions occurred in 29% of patients receiving IMFINZI. The most frequent serious adverse reactions reported in at least 2% of patients were pneumonitis or radiation pneumonitis (7%) and pneumonia (6%). Fatal pneumonitis or radiation pneumonitis and fatal pneumonia occurred in < 2% of patients and were similar across arms. The most common adverse reactions (occurring in ≥ 20% of patients) were cough, fatigue, pneumonitis or radiation pneumonitis, upper respiratory tract infections, dyspnea, and rash.
Table 7 summarizes the adverse reactions that occurred in at least 10% of patients treated with IMFINZI.
Other adverse reactions occurring in less than 10% of patients treated with IMFINZI were dysphonia, dysuria, night sweats, peripheral edema, and increased susceptibility to infections.
Table 8 summarizes the laboratory abnormalities that occurred in at least 20% of patients treated with IMFINZI.
Metastatic NSCLC - POSEIDON
The safety of IMFINZI in combination with tremelimumab-actl and platinum-based chemotherapy in patients with metastatic NSCLC was evaluated in POSEIDON (NCT03164616), a randomized, open-label, multicenter, active-controlled study. A total of 330 patients received IMFINZI 1,500 mg in combination with tremelimumab-actl (≥ 30 kg body weight received 75 mg and < 30 kg body weight received 1 mg/kg) and histology-based platinum chemotherapy regimens
The median age of patients who received IMFINZI in combination with tremelimumab-actl and platinum-based chemotherapy was 63 years (range: 27 to 87); 80% male; 61% White, 29% Asian, 58% former smoker, 25% current smoker, and 68% ECOG performance of 1.
Serious adverse reactions occurred in 44% of patients receiving IMFINZI in combination with tremelimumab-actl and platinum-based chemotherapy. The most frequent serious adverse reactions reported in at least 2% of patients were pneumonia (11%), anemia (5%), diarrhea (2.4%), thrombocytopenia (2.4%), pyrexia (2.4%), and febrile neutropenia (2.1%). Fatal adverse reactions occurred in a total of 4.2% of patients receiving IMFINZI in combination with tremelimumab-actl and platinum-based chemotherapy. These include hepatitis, nephritis, myocarditis, pancreatitis (all in the same patient), death (2 patients), sepsis (2 patients), pneumonitis (2 patients), acute kidney injury (2 patients), febrile neutropenia (1 patient), chronic obstructive pulmonary disease (COPD) (1 patient), dyspnea (1 patient), sudden death (1 patient), and ischemic stroke (1 patient).
Permanent discontinuation of IMFINZI or tremelimumab-actl due to an adverse reaction occurred in 17% of the patients. Adverse reactions which resulted in permanent discontinuation of IMFINZI or tremelimumab-actl in > 2% of patients included pneumonia.
Dosage interruption or delay of IMFINZI and tremelimumab-actl due to an adverse reaction occurred in 41% of patients. Adverse reactions which required dosage interruption or delay of IMFINZI and tremelimumab-actl in > 1% of patients included anemia, leukopenia/white blood cell count decreased, pneumonia, pneumonitis, colitis, diarrhea, hepatitis, rash, asthenia, amylase increased, alanine aminotransferase increased, aspartate aminotransferase increased, lipase increased, neutropenia/ neutrophil count decreased, and thrombocytopenia/platelet count decreased.
The most common adverse reactions (occurring in ≥ 20% of patients) were nausea, fatigue, musculoskeletal pain, decreased appetite, rash, and diarrhea. Grade 3 or 4 laboratory abnormalities (≥ 10%) were neutropenia, anemia, leukopenia, lymphocytopenia, lipase increased, hyponatremia and thrombocytopenia.
Table 9 summarizes the adverse reactions in POSEIDON.
Table 10 summarizes the laboratory abnormalities in POSEIDON.
Small Cell Lung Cancer
Limited Stage Small Cell Lung Cancer – ADRIATIC
The safety of IMFINZI as a single agent in patients with LS-SCLC without disease progression following completion of concurrent platinum-based chemoradiotherapy (60-66 Gy once daily over 6 weeks or 45 Gy twice daily over 3 weeks) within 42 days prior to initiation of study drug, was evaluated in the ADRIATIC study, a multicenter, randomized, double-blind, placebo-controlled study
The study population characteristics were: median age of 62 years (range: 28 to 84); 39% age 65 years or older, 6% age 75 years or older; 69% male; 50% white, 48% Asian, 1.3% other races; 4.2% Hispanic or Latino; 68% former smoker, 22% current smoker; and 51% had WHO performance status of 1. Sixty-seven percent of patients received a total radiation dose of 60 Gy to 66 Gy once daily and 27% of patients received a total radiation dose of 45 Gy twice daily. The median duration of exposure to IMFINZI was 9.2 months (range: 0.92 to 25) in the IMFINZI arm.
Serious adverse reactions occurred in 30% of patients receiving IMFINZI. The most frequent serious adverse reactions reported in ≥ 1% of patients receiving IMFINZI were pneumonitis or radiation pneumonitis (12%), and pneumonia (5%). Fatal adverse reactions occurred in 2.7% of patients who received IMFINZI including pneumonia (1.5%), cardiac failure, encephalopathy and pneumonitis (0.4% each). Permanent discontinuation of IMFINZI due to adverse reactions occurred in 16% of the patients. Adverse reactions which resulted in permanent discontinuation of IMFINZI in ≥ 1% of patients included pneumonitis or radiation pneumonitis (9%) and pneumonia (1.5%). Dosage interruptions of IMFINZI due to an adverse reaction occurred in 35% of patients. Adverse reactions which required dosage interruption in ≥ 5% of patients included pneumonitis or radiation pneumonitis (17%). The most common adverse reactions occurring in ≥ 20% of patients receiving IMFINZI were pneumonitis or radiation pneumonitis (38%), and fatigue (21%).
Table 11 summarizes the adverse reactions that occurred in patients treated with IMFINZI in the ADRIATIC study.
Table 12 summarizes the laboratory abnormalities that occurred in at least 20% of patients treated with IMFINZI.
Extensive Stage Small Cell Lung Cancer – CASPIAN
The safety of IMFINZI in combination with etoposide and either carboplatin or cisplatin in previously untreated ES-SCLC was evaluated in CASPIAN, a randomized, open-label, multicenter, active-controlled study. A total of 265 patients received IMFINZI 1,500 mg in combination with chemotherapy every 3 weeks for 4 cycles followed by IMFINZI 1,500 mg every 4 weeks until disease progression or unacceptable toxicity. The study excluded patients with active or prior autoimmune disease or with medical conditions that required systemic corticosteroids or immunosuppressants
Among 266 patients receiving chemotherapy alone, 57% of the patients received 6 cycles of chemotherapy and 8% of the patients received prophylactic cranial irradiation (PCI) after chemotherapy.
IMFINZI was discontinued due to adverse reactions in 7% of the patients receiving IMFINZI plus chemotherapy. These include pneumonitis, hepatotoxicity, neurotoxicity, sepsis, diabetic ketoacidosis and pancytopenia (1 patient each). Serious adverse reactions occurred in 31% of patients receiving IMFINZI plus chemotherapy. The most frequent serious adverse reactions reported in at least 1% of patients were febrile neutropenia (4.5%), pneumonia (2.3%), anemia (1.9%), pancytopenia (1.5%), pneumonitis (1.1%) and COPD (1.1%). Fatal adverse reactions occurred in 4.9% of patients receiving IMFINZI plus chemotherapy. These include pancytopenia, sepsis, septic shock, pulmonary artery thrombosis, pulmonary embolism, and hepatitis (1 patient each) and sudden death (2 patients). The most common adverse reactions (occurring in ≥ 20% of patients) were nausea, fatigue/asthenia and alopecia.
Table 13 summarizes the adverse reactions that occurred in patients treated with IMFINZI plus chemotherapy.
Table 14 summarizes the laboratory abnormalities that occurred in at least 20% of patients treated with IMFINZI plus chemotherapy.
Biliary Tract Cancer
Locally Advanced or Metastatic BTC - TOPAZ-1
The safety of IMFINZI in combination with gemcitabine and cisplatin in locally advanced or metastatic BTC was evaluated in TOPAZ-1, a randomized, double-blind, placebo-controlled, multicenter study. A total of 338 patients received IMFINZI 1,500 mg in combination with gemcitabine and cisplatin every 3 weeks up to 8 cycles followed by IMFINZI 1,500 mg every 4 weeks until disease progression or unacceptable toxicity. Patients with active or prior documented autoimmune or inflammatory disorders, HIV infection or other active infections, including tuberculosis or hepatitis C were ineligible
IMFINZI was discontinued due to adverse reactions in 6% of the patients receiving IMFINZI plus chemotherapy. The most frequently reported events resulting in discontinuation were sepsis (3 patients) and ischemic stroke (2 patients). The remaining events were dispersed across system organ classes and reported in 1 patient each. Serious adverse reactions occurred in 47% of patients receiving IMFINZI plus chemotherapy. The most frequent serious adverse reactions reported in at least 2% of patients were cholangitis (7%), pyrexia (3.8%), anemia (3.6%), sepsis (3.3%) and acute kidney injury (2.4%). Fatal adverse reactions occurred in 3.6% of patients receiving IMFINZI plus chemotherapy. These include ischemic or hemorrhagic stroke (4 patients), sepsis (2 patients) and upper gastrointestinal hemorrhage (2 patients). The most common adverse reactions (occurring in ≥ 20% of patients) were fatigue, nausea, constipation, decreased appetite, abdominal pain, rash and pyrexia. Table 15 summarizes the adverse reactions that occurred in patients treated with IMFINZI plus chemotherapy.
Table 16 summarizes the laboratory abnormalities in patients treated with IMFINZI plus chemotherapy.
Hepatocellular Carcinoma
Unresectable HCC - HIMALAYA
The safety of IMFINZI in combination with tremelimumab-actl was evaluated in a total of 388 patients with uHCC in HIMALAYA, a randomized, open-label, multicenter study
Serious adverse reactions occurred in 41% of patients who received IMFINZI in combination with tremelimumab-actl. Serious adverse reactions in > 1% of patients included hemorrhage (6%), diarrhea (4%), sepsis (2.1%), pneumonia (2.1%), rash (1.5%), vomiting (1.3%), acute kidney injury (1.3%), and anemia (1.3%). Fatal adverse reactions occurred in 8% of patients who received IMFINZI in combination with tremelimumab-actl, including death (1%), hemorrhage intracranial (0.5%), cardiac arrest (0.5%), pneumonitis (0.5%), hepatic failure (0.5%), and immune-mediated hepatitis (0.5%). The most common adverse reactions (occurring in ≥ 20% of patients) were rash, diarrhea, fatigue, pruritus, musculoskeletal pain, and abdominal pain.
Permanent discontinuation of treatment regimen due to an adverse reaction occurred in 14% of patients; the most common adverse reactions leading to treatment discontinuation (≥ 1%) were hemorrhage (1.8%), diarrhea (1.5%), AST increased (1%), and hepatitis (1%).
Dosage interruptions or delay of the treatment regimen due to an adverse reaction occurred in 35% of patients. Adverse reactions which required dosage interruption or delay in ≥ 1% of patients included ALT increased (3.6%), diarrhea (3.6%), rash (3.6%), amylase increased (3.4%), AST increased (3.1%), lipase increased (2.8%), pneumonia (1.5%), hepatitis (1.5%), pyrexia (1.5%), anemia (1.3%), thrombocytopenia (1%), hyperthyroidism (1%), pneumonitis (1%), and blood creatinine increased (1%).
Table 17 summarizes the adverse reactions that occurred in patients treated with IMFINZI in combination with tremelimumab-actl in the HIMALAYA study.
Table 18 summarizes the laboratory abnormalities that occurred in patients treated with IMFINZI in combination with tremelimumab-actl in the HIMALAYA study.
Endometrial Cancer
Advanced or Recurrent dMMR Endometrial Cancer – DUO-E
The safety of IMFINZI in combination with carboplatin and paclitaxel followed by IMFINZI as a single agent was evaluated in 44 patients with dMMR advanced or recurrent endometrial cancer in DUO-E, a randomized, double-blind, placebo-controlled trial
Serious adverse reactions occurred in 30% of patients who received IMFINZI with carboplatin and paclitaxel. The most common serious adverse reactions (≥4%) were constipation (4.5%) and rash (4.5%).
Permanent discontinuation of IMFINZI due to adverse reactions occurred in 11% of patients. The adverse reaction which resulted in permanent discontinuation of IMFINZI (≥4%) was rash (4.5%).
Dosage interruptions of IMFINZI due to adverse reactions occurred in 52% of patients. Adverse reactions which required dosage interruptions of IMFINZI (≥ 4%) were anemia (11%), thrombocytopenia (9%), neutropenia (9%), COVID-19 (9%), increased ALT (4.5%), and pneumonitis (4.5%).
The most common adverse reactions (> 20%), including laboratory abnormalities, were peripheral neuropathy, musculoskeletal pain, nausea, alopecia, fatigue, abdominal pain, constipation, rash, decreased magnesium, increased ALT, increased AST, diarrhea, vomiting, cough, decreased potassium, dyspnea, headache, increased alkaline phosphatase, and decreased appetite.
Tables 19 and 20 summarize adverse reactions and laboratory abnormalities in DUO-E, respectively.
Clinically relevant adverse reactions in < 10% of patients who received IMFINZI with carboplatin and paclitaxel included autoimmune hemolytic anemia, colitis, immune-mediated thyroiditis, infusion related reaction, interstitial lung disease, myositis, pneumonitis, pulmonary embolism, and sepsis.
Table 20 summarizes the laboratory abnormalities that occurred in patients treated with IMFINZI with carboplatin and paclitaxel followed by IMFINZI as a single agent.
Muscle Invasive Bladder Cancer (MIBC)
Neoadjuvant and adjuvant treatment of MIBC – NIAGARA
The safety of IMFINZI in combination with neoadjuvant gemcitabine and cisplatin followed by surgery and continued IMFINZI treatment as adjuvant, single-agent therapy was evaluated in NIAGARA, a randomized, open-label, multicenter trial. Patients received IMFINZI in combination with chemotherapy (n=530) or received chemotherapy alone (n=526)
The median duration of exposure to IMFINZI 1,500 mg every 3 weeks in the neoadjuvant phase was 12 weeks (range: 1.1 to 84 weeks). The median duration of exposure to IMFINZI 1,500 mg every 4 weeks in the adjuvant phase was 32 weeks (range: 2.4 to 50 weeks).
The most common adverse reactions, including laboratory abnormalities, in the overall study (occurring in ≥ 20% of patients) were decreased hemoglobin, decreased neutrophils, increased blood creatinine, decreased sodium, nausea, increased ALT, decreased calcium, decreased platelets, fatigue, increased potassium, decreased lymphocytes, increased AST, constipation, decreased magnesium, decreased appetite, increased alkaline phosphate, rash, pyrexia, diarrhea, vomiting, and abdominal pain.
Table 21 summarizes the adverse reactions that occurred in patients treated with IMFINZI plus chemotherapy.
Table 22 summarizes the laboratory abnormalities in patients treated with IMFINZI plus chemotherapy.
Neoadjuvant Phase of NIAGARA
A total of 530 patients received at least 1 dose of IMFINZI in combination with chemotherapy as neoadjuvant treatment in the IMFINZI treatment arm, and 526 patients received at least 1 dose of chemotherapy as neoadjuvant treatment in the chemotherapy treatment arm. In the neoadjuvant phase, serious adverse reactions occurred in 24% of patients who received IMFINZI in combination with chemotherapy; the most frequent (≥1%) serious adverse reactions were pulmonary embolism (1.9%), febrile neutropenia (1.5%), acute kidney injury (1.3%), thrombocytopenia (1.3%), urinary tract infection (1.3%) and pneumonia (1.3%). Fatal adverse reactions occurred in 1.1% of patients including sepsis (0.2%), myocardial infarction (0.2%), and pulmonary embolism (0.2%). One fatal adverse reaction of pneumonia was reported in 1 (0.2%) patient in the post-surgery phase before adjuvant treatment started.
Permanent discontinuation of IMFINZI due to an adverse reaction in the neoadjuvant phase occurred in 9% of patients while receiving IMFINZI in combination with chemotherapy. The most frequent (≥ 0.5%) adverse reactions that led to permanent discontinuation of IMFINZI were blood creatinine increased (0.9%), neutropenia (0.6%), acute kidney injury (0.6%), asthenia (0.6%) and fatigue (0.6%).
Of the 530 patients in the IMFINZI treatment arm and 526 patients in the chemotherapy treatment arm who received neoadjuvant treatment, 1 (0.2%) patient in each treatment arm did not receive surgery due to adverse reactions. The adverse reaction that led to cancellation of surgery in the IMFINZI treatment arm was interstitial lung disease.
Of the 469 patients in the IMFINZI treatment arm who underwent radical cystectomy, 4 (0.8%) patients experienced delay of surgery (defined as occurring more than 56 days after the last dose of neoadjuvant treatment) due to adverse reactions.
Adjuvant Phase of NIAGARA
A total of 383 patients (72%) in the IMFINZI treatment arm received at least 1 dose of adjuvant treatment.
Serious adverse reactions occurred in 26% of patients receiving IMFINZI as adjuvant treatment. The most frequent serious adverse reactions (occurring in ≥1% of patients) were urinary tract infection (7%), acute kidney injury (3.7%), hydronephrosis (2.1%), pyelonephritis (2.1%), urosepsis (1.8%), and sepsis (1.6%). Fatal adverse reactions occurred in 1.8% of patients, including COVID-19 (0.3%), severe acute respiratory syndrome (0.3%), cardiopulmonary failure (0.3%), gastrointestinal haemorrhage (0.3%), and chronic hepatic failure (0.3%).
Permanent discontinuation of adjuvant IMFINZI due to an adverse reaction occurred in 5% of patients. The most frequent (≥0.5%) adverse reactions that led to permanent discontinuation of adjuvant IMFINZI were nephritis (0.8%), fatigue (0.5%), diarrhea (0.5%), decreased appetite (0.5%) and pneumonitis (0.5%).
Gastric or Gastroesophageal Junction Adenocarcinoma (GC/GEJC)
Neoadjuvant and Adjuvant Treatment of Resectable GC/GEJC – MATTERHORN
The safety of IMFINZI with FLOT as neoadjuvant and adjuvant treatment, followed by single-agent IMFINZI, was evaluated in MATTERHORN, a randomized, double-blind, placebo-controlled, multicenter study of patients with resectable GC/GEJC (Stage II to Stage IVA [AJCC, 8th edition])
Safety data are available for the 944 patients who received IMFINZI with FLOT (n=475) or placebo with FLOT (n=469).
The median duration of exposure to IMFINZI 1,500 mg every 4 weeks in the neoadjuvant phase was 8 weeks (range: 1.4 to 8.7 weeks). The median duration of exposure to IMFINZI 1,500 mg every 4 weeks in the adjuvant phase was 48 weeks (range: 1.9 to 50.1 weeks).
The most common adverse reactions (occurring in ≥ 20% of patients) were diarrhea, nausea, peripheral neuropathy, fatigue, alopecia, decreased appetite, rash, abdominal pain, vomiting, musculoskeletal pain, pyrexia, and stomatitis.
Table 23 summarizes the adverse reactions that occurred in ≥ 10% of patients treated with IMFINZI in combination with FLOT chemotherapy.
- Table 24 summarizes the laboratory abnormalities in patients treated with IMFINZI in combination with FLOT chemotherapy.
Adverse Reactions by Phase of Treatment
Table 25 summarizes safety profile by Phase of treatment.
Serious adverse reactions (≥2%) in the IMFINZI arm were diarrhea (2.5%) during the neoadjuvant phase, and pneumonia (2.5%) in the adjuvant phase.
Deaths (≥2 patients) in the IMFINZI arm were septic shock (0.6%) and acute coronary syndrome (0.4%) during the neoadjuvant phase; gastrointestinal perforation (0.5%) and COVID-19 (0.5%) during adjuvant phase; and gastrointestinal perforation (0.6%) and COVID-19 (0.6%) in the single-agent adjuvant phase.
Permanent discontinuation of IMFINZI (≥2 patients) due an adverse reaction in the IMFINZI arm were nephritis (0.4%) during the neoadjuvant phase; hepatitis (1.1%), pneumonitis (1.1%), rash (0.8%), musculoskeletal pain (0.5%), and renal failure (0.5%) during adjuvant phase; and hepatitis (0.9%), pneumonitis (0.9%), musculoskeletal pain (0.6%), and renal failure (0.6%) during the single-agent adjuvant phase.
4DESCRIPTION
Durvalumab is a programmed cell death ligand 1 (PD-L1) blocking antibody. Durvalumab is a human immunoglobulin G1 kappa (IgG1κ) monoclonal antibody that is produced by recombinant DNA technology in Chinese Hamster Ovary (CHO) cell suspension culture.
IMFINZI (durvalumab) Injection for intravenous use is a sterile, preservative-free, clear to opalescent, colorless to slightly yellow solution, free from visible particles.
Each 500 mg vial of IMFINZI contains 500 mg of durvalumab in 10 mL solution. Each mL contains durvalumab, 50 mg, L-histidine (2 mg), L-histidine hydrochloride monohydrate (2.7 mg), α,α-trehalose dihydrate (104 mg), Polysorbate 80 (0.2 mg), and Water for Injection, USP.
Each 120 mg vial of IMFINZI contains 120 mg of durvalumab in 2.4 mL solution. Each mL contains durvalumab, 50 mg, L-histidine (2 mg), L-histidine hydrochloride monohydrate (2.7 mg), α,α-trehalose dihydrate (104 mg), Polysorbate 80 (0.2 mg), and Water for Injection, USP.
5HOW SUPPLIED/STORAGE AND HANDLING
IMFINZI (durvalumab) Injection is a clear to opalescent, colorless to slightly yellow solution supplied in a carton containing one single-dose vial either as:
- 500 mg/10 mL (50 mg/mL) (NDC 0310-4611-50)
- 120 mg/2.4 mL (50 mg/mL) (NDC 0310-4500-12)
Store in a refrigerator at 2°C to 8°C (36°F to 46°F) in original carton to protect from light.
Do not freeze. Do not shake.
6PATIENT COUNSELING INFORMATION
Advise the patient to read the FDA-approved patient labeling (Medication Guide).
Immune-Mediated Adverse Reactions
Inform patients of the risk of immune-mediated adverse reactions that may require corticosteroid treatment and interruption or discontinuation of IMFINZI
- Pneumonitis: Advise patients to contact their healthcare provider immediately for any new or worsening cough, chest pain, or shortness of breath.
- Hepatitis: Advise patients to contact their healthcare provider immediately for jaundice, severe nausea or vomiting, pain on the right side of abdomen, lethargy, or easy bruising or bleeding.
- Colitis: Advise patients to contact their healthcare provider immediately for diarrhea, blood or mucus in stools, or severe abdominal pain.
- Endocrinopathies: Advise patients to contact their healthcare provider immediately for signs or symptoms of hypothyroidism, hyperthyroidism, adrenal insufficiency, type 1 diabetes mellitus, or hypophysitis.
- Nephritis: Advise patients to contact their healthcare provider immediately for signs or symptoms of nephritis.
- Dermatological Reactions: Advise patients to contact their healthcare provider immediately for signs or symptoms of severe dermatological reactions.
- Pancreatitis: Advise patients to contact their healthcare provider immediately for signs or symptoms of pancreatitis.
- Other Immune-Mediated Adverse Reactions: Advise patients to contact their healthcare provider immediately for signs or symptoms of pancreatitis, aseptic meningitis, encephalitis, immune thrombocytopenia, myocarditis, hemolytic anemia, myositis, uveitis, keratitis, and myasthenia gravis.
Infusion-Related Reactions:
- Advise patients to contact their healthcare provider immediately for signs or symptoms of infusion-related reactions
Complications of Allogeneic HSCT:
- Advise patients of potential risk of post-transplant complications
Embryo-Fetal Toxicity:
- Advise females of reproductive potential that IMFINZI can cause harm to a fetus and to inform their healthcare provider of a known or suspected pregnancy
- Advise females of reproductive potential to use effective contraception during treatment and for 3 months after the last dose of IMFINZI
Lactation:
- Advise female patients not to breastfeed while taking IMFINZI and for 3 months after the last dose
Manufactured for:
AstraZeneca Pharmaceuticals LP
7MEDICATION GUIDE
This Medication Guide has been approved by the U.S. Food and Drug Administration. Revised: 11/2025
8PACKAGE/LABEL PRINCIPAL DISPLAY PANEL
NDC 0310-4500-12
Rx only
IMFINZI™
120 mg/2.4 mL
For Intravenous Infusion After Dilution
Must dilute before use.
AstraZeneca
9PACKAGE/LABEL DISPLAY PANEL
NDC 0310-4611-50
Rx only
IMFINZI™
500 mg/10 mL
For Intravenous Infusion After Dilution
Must dilute before use.
AstraZeneca
