IZALCO trial: SARCLISA ESCENA™ (isatuximab-irfc) with CirCLIQ™ + Kd met the major efficacy outcome of ORR in patients with RRMM1

IZALCO safety
- The most common adverse reactions (≥10%, all grades) were upper respiratory tract infection (54%), musculoskeletal pain (20%), pneumonia (18%), hypertension (14%), COVID-19 (12%), insomnia (12%), diarrhea (11%), and pyrexia (11%)
- Clinically relevant adverse reactions in <10% of patients who received SARCLISA ESCENA + Kd included cardiac failure
- Serious adverse reactions occurred in 41% of patients receiving SARCLISA ESCENA + Kd. Serious adverse reactions in ≥5% of patients included pneumonia (11%)
- Fatal adverse reactions occurred in 5.4% of patients who received SARCLISA ESCENA + Kd, including meningitis (1.4%), acute pulmonary edema (1.4%), acute respiratory distress syndrome (1.4%), and death from unknown cause (1.4%)
- The most common laboratory abnormalities that worsened from baseline (≥30%, all grades) were decreased lymphocytes (85%), decreased platelets (85%), decreased leukocytes (59%), decreased hemoglobin (56%), decreased calcium (55%), decreased neutrophils (47%), decreased sodium (44%), decreased magnesium (33%), increased alkaline phosphatase (33%), and decreased albumin (32%)
IZALCO trial design
A sequential, open-label, phase 2 trial that evaluated SARCLISA ESCENA (1,400-mg fixed dose) with CirCLIQ + Kd in 74 patients with RRMM who had received 1 to 3 prior lines of therapy. In part 1, 8 patients received SARCLISA ESCENA with manual administration. In part 2, 66 patients received SARCLISA ESCENA with manual administration (cycles 1 to 3) followed by SARCLISA ESCENA with CirCLIQ (cycles 4 to 6), or SARCLISA ESCENA with CirCLIQ (cycles 1 to 3) followed by subcutaneous manual administration (cycles 4 to 6). The major efficacy outcome was ORR by IRC.
IRC=independent review committee; Kd=carfilzomib and dexamethasone; ORR=overall response rate; RRMM=relapsed or refractory multiple myeloma.
ISASOCUT trial: SARCLISA ESCENA™ (isatuximab-irfc) with CirCLIQ™ + VRd met the major efficacy outcome in front-line patients with non-transplant NDMM1

ISASOCUT safety
- The most common adverse reactions (≥10%, all grades) were peripheral neuropathy (59%), constipation (43%), diarrhea (41%), fatigue (37%), musculoskeletal pain (32%), upper respiratory tract infection (30%), injection site reaction (27%), insomnia (26%), edema (20%), erythema (20%), rash (20%), COVID-19 (18%), back pain (16%), hypotension (16%), pneumonia (15%), nausea (15%), bronchitis (14%), muscle spasms (14%), decreased weight (14%), influenza (12%), urinary tract infection (12%), abdominal pain (11%), pyrexia (11%), and vomiting (11%)
- Clinically relevant adverse reactions in <10% of patients who received SARCLISA ESCENA + VRd included systemic administration reactions
- Serious adverse reactions occurred in 45% of patients receiving SARCLISA ESCENA + VRd. Serious adverse reactions in >5% of patients included pneumonia (8%)
- Fatal adverse reactions occurred in 2.7% of patients who received SARCLISA ESCENA + VRd, including cardiorespiratory arrest (1.4%) and myocardial infarction (1.4%)
- The most common laboratory abnormalities that worsened from baseline (≥30%, all grades) were decreased lymphocytes (92%), decreased leukocytes (92%), decreased platelets (82%), decreased neutrophils (76%), increased alkaline phosphatase (42%), and decreased hemoglobin (41%)
ISASOCUT trial design
An open-label, single-arm, investigator-sponsored, phase 2 trial that evaluated SARCLISA ESCENA with CirCLIQ + VRd in 74 patients with NDMM who were not eligible for transplant. During induction (cycles 1 to 12), patients received SARCLISA ESCENA (1,400-mg fixed dose) with CirCLIQ + VRd. From cycle 13 onward, patients received SARCLISA ESCENA with CirCLIQ + R as continuous treatment until disease progression or unacceptable toxicity. The major efficacy outcome was ORR.
Bortezomib was administered at days 1, 8, and 15 of each 28-day cycle during cycles 2 to 12, and discontinued following the induction phase.
NDMM=newly diagnosed multiple myeloma; ORR=overall response rate; R=lenalidomide; VRd=bortezomib, lenalidomide, dexamethasone.
IZALCO trial: SARCLISA ESCENA™ (isatuximab-irfc) with CirCLIQ™ + Kd met the major efficacy outcome of ORR in patients with RRMM1

IZALCO safety
- The most common adverse reactions (≥10%, all grades) were upper respiratory tract infection (54%), musculoskeletal pain (20%), pneumonia (18%), hypertension (14%), COVID-19 (12%), insomnia (12%), diarrhea (11%), and pyrexia (11%)
- Clinically relevant adverse reactions in <10% of patients who received SARCLISA ESCENA + Kd included cardiac failure
- Serious adverse reactions occurred in 41% of patients receiving SARCLISA ESCENA + Kd. Serious adverse reactions in ≥5% of patients included pneumonia (11%)
- Fatal adverse reactions occurred in 5.4% of patients who received SARCLISA ESCENA + Kd, including meningitis (1.4%), acute pulmonary edema (1.4%), acute respiratory distress syndrome (1.4%), and death from unknown cause (1.4%)
- The most common laboratory abnormalities that worsened from baseline (≥30%, all grades) were decreased lymphocytes (85%), decreased platelets (85%), decreased leukocytes (59%), decreased hemoglobin (56%), decreased calcium (55%), decreased neutrophils (47%), decreased sodium (44%), decreased magnesium (33%), increased alkaline phosphatase (33%), and decreased albumin (32%)
IZALCO trial design
A sequential, open-label, phase 2 trial that evaluated SARCLISA ESCENA (1,400-mg fixed dose) with CirCLIQ + Kd in 74 patients with RRMM who had received 1 to 3 prior lines of therapy. In part 1, 8 patients received SARCLISA ESCENA with manual administration. In part 2, 66 patients received SARCLISA ESCENA with manual administration (cycles 1 to 3) followed by SARCLISA ESCENA with CirCLIQ (cycles 4 to 6), or SARCLISA ESCENA with CirCLIQ (cycles 1 to 3) followed by subcutaneous manual administration (cycles 4 to 6). The major efficacy outcome was ORR by IRC.
IRC=independent review committee; Kd=carfilzomib and dexamethasone; ORR=overall response rate; RRMM=relapsed or refractory multiple myeloma.
ISASOCUT trial: SARCLISA ESCENA™ (isatuximab-irfc) with CirCLIQ™ + VRd met the major efficacy outcome in front-line patients with non-transplant NDMM1

ISASOCUT safety
- The most common adverse reactions (≥10%, all grades) were peripheral neuropathy (59%), constipation (43%), diarrhea (41%), fatigue (37%), musculoskeletal pain (32%), upper respiratory tract infection (30%), injection site reaction (27%), insomnia (26%), edema (20%), erythema (20%), rash (20%), COVID-19 (18%), back pain (16%), hypotension (16%), pneumonia (15%), nausea (15%), bronchitis (14%), muscle spasms (14%), decreased weight (14%), influenza (12%), urinary tract infection (12%), abdominal pain (11%), pyrexia (11%), and vomiting (11%)
- Clinically relevant adverse reactions in <10% of patients who received SARCLISA ESCENA + VRd included systemic administration reactions
- Serious adverse reactions occurred in 45% of patients receiving SARCLISA ESCENA + VRd. Serious adverse reactions in >5% of patients included pneumonia (8%)
- Fatal adverse reactions occurred in 2.7% of patients who received SARCLISA ESCENA + VRd, including cardiorespiratory arrest (1.4%) and myocardial infarction (1.4%)
- The most common laboratory abnormalities that worsened from baseline (≥30%, all grades) were decreased lymphocytes (92%), decreased leukocytes (92%), decreased platelets (82%), decreased neutrophils (76%), increased alkaline phosphatase (42%), and decreased hemoglobin (41%)
ISASOCUT trial design
An open-label, single-arm, investigator-sponsored, phase 2 trial that evaluated SARCLISA ESCENA with CirCLIQ + VRd in 74 patients with NDMM who were not eligible for transplant. During induction (cycles 1 to 12), patients received SARCLISA ESCENA (1,400-mg fixed dose) with CirCLIQ + VRd. From cycle 13 onward, patients received SARCLISA ESCENA with CirCLIQ + R as continuous treatment until disease progression or unacceptable toxicity. The major efficacy outcome was ORR.
Bortezomib was administered at days 1, 8, and 15 of each 28-day cycle during cycles 2 to 12, and discontinued following the induction phase.
NDMM=newly diagnosed multiple myeloma; ORR=overall response rate; R=lenalidomide; VRd=bortezomib, lenalidomide, dexamethasone.
Indication
Reference: 1. SARCLISA ESCENA. Prescribing information. sanofi-aventis U.S. LLC; 2026.
