ADVERSE REACTIONS
The following serious adverse reactions are discussed in greater detail in another section of the label:
- Cytokine Release Syndrome [see Warnings and Precautions (5.1)]
- Neurological Toxicities [see Warnings and Precautions (5.2)]
- Hemophagocytic Lymphohistiocytosis/Macrophage Activation Syndrome [see Warnings and Precautions (5.3)]
- Serious Infections [see Warnings and Precautions (5.5)]
- Prolonged Cytopenias [see Warnings and Precautions (5.6)]
- Hypogammaglobulinemia [see Warnings and Precautions (5.7)]
Clinical 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 safety data described in the WARNINGS AND PRECAUTIONS and in this section reflect exposure to KYMRIAH in three non-randomized, single-arm studies in which 79 pediatric and young adult patients with relapsed/refractory (r/r) B-cell ALL (ELIANA Study), 115 adults with r/r diffuse large B-cell lymphoma (JULIET Study), and 97 adults with r/r follicular lymphoma (ELARA Study) received a single dose of CAR-positive viable T cells.
Pediatric and Young Adult r/r B-cell Acute Lymphoblastic Leukemia (ALL) (up to 25 years of age)
Based on a recommended dose which was weight-based, all 79 patients in the ELIANA study (Study 1) received a single intravenous dose of KYMRIAH [see Clinical Studies (14.1)]. The most common adverse reactions (> 20%) were CRS (77%), infections-pathogen unspecified (57%), hypogammaglobulinemia (53%), fever (42%), decreased appetite (38%), viral infectious disorders (38%), headache (35%), febrile neutropenia (34%), hemorrhage (32%), musculoskeletal pain (32%), vomiting (32%), encephalopathy (30%), bacterial infectious disorders (29%), diarrhea (29%), hypotension (29%), cough (27%), nausea (27%), pain (25%), hypoxia (25%), tachycardia (24%), edema (23%), fatigue (23%), and acute kidney injury (22%).
The adverse reactions with greater than or equal to 10% incidence for any Grade are summarized in Table 3.
Table 3. Selected Adverse Reactions Anytime After Infusion (≥ 10%) Following Treatment with KYMRIAH in Pediatric and Young Adult r/r B-cell ALL (N = 79)
| Adverse reaction |
All Grades (%) |
Grades 3 or higher
(%) |
| Blood and lymphatic system disorders |
34 |
34 |
| Febrile neutropenia |
34 |
34 |
| Cardiac disorders |
|
|
| Tachycardia |
24 |
4 |
| Gastrointestinal disorders |
|
|
| Vomiting |
32 |
1 |
| Diarrhea |
29 |
1 |
| Nausea |
27 |
3 |
| Abdominal painb |
18 |
3 |
| Constipation |
18 |
0 |
| General disorders and administration site conditions |
|
|
| Fever |
42 |
13 |
| Painc |
25 |
3 |
| Fatigued |
23 |
0 |
| Edemae |
23 |
8 |
| Immune system disorders |
|
|
| Cytokine release syndrome |
77 |
48 |
| Hypogammaglobulinemiaf |
53 |
13 |
| Infections and infestations |
|
|
| Infections–pathogen unspecified |
57 |
27 |
| Viral infectious disorders |
37 |
22 |
| Bacterial infectious disorders |
29 |
16 |
| Fungal infectious disorders |
15 |
9 |
| Metabolism and nutrition disorders |
|
|
| Decreased appetite |
38 |
15 |
| Hypocalcemia |
20 |
6 |
| Hyperferritinemiag |
10 |
3 |
| Musculoskeletal and connective tissue disorders |
|
|
| Musculoskeletal painh |
32 |
4 |
| Arthralgia |
14 |
1 |
| Nervous system disorders |
|
|
| Headachei |
35 |
3 |
| Encephalopathyj |
30 |
9 |
| Psychiatric disorders |
|
|
| Deliriumk |
19 |
4 |
| Anxiety |
17 |
3 |
| Sleep disorderl |
11 |
0 |
| Renal and urinary disorders |
|
|
| Acute kidney injurym |
22 |
14 |
| Respiratory, thoracic and mediastinal disorders |
|
|
| Coughn |
27 |
0 |
| Hypoxia |
25 |
20 |
| Dyspneao |
19 |
14 |
| Pulmonary edema |
15 |
9 |
| Nasal congestion |
11 |
0 |
| Oropharyngeal pain |
10 |
0 |
| Pleural effusion |
10 |
4 |
| Tachypnea |
10 |
5 |
| Skin and subcutaneous tissue disorders |
|
|
| Rashp |
18 |
1 |
| Vascular disorders |
|
|
| Hemorrhageq |
32 |
10 |
| Hypotension |
29 |
20 |
| Hypertension |
19 |
5 |
|
[1]Tachycardia includes sinus tachycardia and tachycardia. bAbdominal pain includes abdominal pain, abdominal pain upper. cPain includes pain and pain in extremity. dFatigue includes fatigue and malaise. eEdema includes face edema, fluid overload, generalized edema, localized edema, edema peripheral.
fHypogammaglobulinemia includes hypogammaglobulinemia, immunoglobulins decreased, blood immunoglobulin G decreased, blood immunoglobulin A decreased, blood immunoglobulin M decreased, immunodeficiency, immunodeficiency common variable. gHyperferritinemia includes serum ferritin increased.
hMusculoskeletal pain includes back pain, bone pain, musculoskeletal chest pain, musculoskeletal pain, myalgia, neck pain, and noncardiac chest pain. iHeadache includes headache and migraine.
jEncephalopathy includes encephalopathy, cognitive disorder, confusional state, depressed level of consciousness, disturbance in attention, lethargy, mental status changes, somnolence, memory impairment, and automatism. Encephalopathy is a dominant feature of immune effector cell-associated neurotoxicity syndrome (ICANS), along with other symptoms.
kDelirium includes delirium, agitation, hallucination, hallucination visual, irritability, restlessness. lSleep disorder includes sleep disorder, insomnia and nightmare. mAcute kidney injury includes acute kidney injury, anuria, azotemia, renal failure, renal tubular dysfunction, renal tubular necrosis, and blood creatinine increased. nCough includes cough and productive cough. oDyspnea includes acute respiratory failure, dyspnea, respiratory distress, and respiratory failure. pRash includes dermatitis, rash, rash maculo-papular, rash papular, and rash pruritic.
qHemorrhage includes anal hemorrhage, catheter site hemorrhage, cerebral hemorrhage, conjunctival hemorrhage, contusion, cystitis hemorrhagic, disseminated intravascular coagulation, epistaxis, gastrointestinal hemorrhage, gingival bleeding, hemarthrosis, hematemesis, hematuria, hemoptysis, heavy menstrual bleeding, melena, mouth hemorrhage, peritoneal hematoma, petechiae, pharyngeal hemorrhage, purpura, retinal hemorrhage, vaginal hemorrhage.
[1] Cardiac failure includes cardiac failure, cardiac failure congestive, left ventricular dysfunction, right ventricular dysfunction. bArrhythmia includes cardiac arrest. cSeizure includes generalized tonic-clonic seizure and seizure. dPeripheral neuropathy includes hyperasthesia, hypoasthesia, paresthesia. eSpeech disorder includes aphasia and dysarthria. fMotor dysfunction includes muscle spasms.
|
Additional important adverse reactions that did not meet the threshold criteria for inclusion in Table 3 were:
Blood and lymphatic system disorders: coagulopathy (6%), hemophagocytic lymphohistiocytosis (6%), pancytopenia (3%)
Cardiac disorders: cardiac failurea (9%), arrhythmiab (4%)
Eye disorders: visual impairment (3%)
Gastrointestinal disorders: abdominal distention (4%), ascites (4%), stomatitis (4%), abdominal compartment syndrome (1%), dry mouth (1%)
General disorders and administration site conditions:chills (9%), asthenia (4%), influenza-like illness (3%), multiple organ dysfunction syndrome (3%)
Immune system disorders: infusion related reaction (6%), graft versus host disease (3%)
Investigations: prothrombin time prolonged (4%), fibrin D dimer increased (3%), weight decreased (3%)
Metabolism and nutrition disorders: tumor lysis syndrome (6%), hypercalcemia (4%)
Nervous system disorders: tremor (8%), seizurec (6%), dizziness (5%), peripheral neuropathyd (4%), speech disordere (3%), motor dysfunctionf (1%), neuralgia (1%)
Respiratory, thoracic, and mediastinal disorders: acute respiratory distress syndrome (4%), lung infiltration (1%)
Skin and subcutaneous tissue disorders: pruritus (9%), erythema (6%), hyperhidrosis (4%), night sweats (1%)
Vascular disorders: capillary leak syndrome (3%), thrombosis (3%), flushing (1%)
Laboratory Abnormalities
[1] Cardiac failure includes cardiac failure, cardiac failure congestive, left ventricular dysfunction, right ventricular dysfunction. bArrhythmia includes cardiac arrest. cSeizure includes generalized tonic-clonic seizure and seizure. dPeripheral neuropathy includes hyperasthesia, hypoasthesia, paresthesia. eSpeech disorder includes aphasia and dysarthria. fMotor dysfunction includes muscle spasms.
Table 4. Grade 3 or 4 Laboratory Abnormalities Occurring in > 10% of Patients Following Treatment with KYMRIAH in Pediatric and Young Adult r/r B-cell ALL based on CTCAEa (N = 79)
|
Laboratory abnormality
|
Grade 3 or 4 (%)
|
|
Hematology
Blood fibrinogen decreased
|
11
|
|
Biochemistry
Aspartate aminotransferase increased
|
29
|
|
Hypokalemia
|
28
|
|
Alanine aminotransferase increased
|
22
|
|
Hypophosphatemia
|
20
|
|
Hyperbilirubinemia
|
19
|
|
Hyperglycemia
|
13
|
|
aCTCAE = Common Terminology Criteria for Adverse Events version 4.03.
|
All patients experienced neutropenia, anemia and thrombocytopenia. See Table 5 for the incidences of ≥ Grade 3 prolonged thrombocytopenia and prolonged neutropenia in responding patients.
Table 5. Prolonged Cytopenias Following Treatment with KYMRIAH in Pediatric and Young Adult r/r B-cell ALL
|
Prolonged cytopenia
|
N = 52 (%)
|
N = 52 (%)
|
|
|
Day 28
|
Day 56
|
|
Prolonged neutropeniaa
|
40
|
17
|
|
Prolonged thrombocytopeniaa
|
27
|
12
|
|
a≥ Grade 3 observed within 14 days after Day 28 or Day 56 in responding patients.
|
Adult r/r Diffuse Large B-cell Lymphoma (DLBCL)
In the JULIET study (Study 2) 115 adults with r/r DLBCL received a single intravenous dose of KYMRIAH [see Clinical Studies (14.2)]. The most common adverse reactions (incidence > 20%) were CRS, infections-pathogen unspecified, fever, diarrhea, nausea, fatigue, hypotension, edema, bleeding episodes, dyspnea, and headache.
The study population characteristics were median age of 56 years (range, 22 to 76 years), 80% DLBCL; a median of 3 prior lines of therapy (range, 1 to 6), 49% had a prior autologous hematopoietic stem cell transplantation, and 32% had received prior radiation therapy. One hundred seven patients (93%) received lymphodepleting chemotherapy prior to KYMRIAH, which included fludarabine (n = 85) or bendamustine (n = 22).
The adverse reactions with greater than or equal to 10% incidence for any Grade are summarized in Table 6 below.
Table 6. Selected Adverse Reactions Anytime After Infusion Reported in ≥ 10% Following Treatment with KYMRIAH in Adult r/r DLBCL (N = 115)
|
Adverse reaction
|
All Grades
(%)
|
Grades 3 or higher
(%)
|
|
Blood and lymphatic system disorders
Febrile neutropenia
|
17
|
17
|
|
Cardiac disorders
Tachycardiaa
|
13
|
3
|
|
Arrhythmiab
|
10
|
5
|
|
Gastrointestinal disorders
Diarrhea
|
31
|
1
|
|
Nausea
|
29
|
1
|
|
Constipation
|
17
|
1
|
|
Abdominal painc
|
10
|
2
|
|
General disorders and administration site conditions
Fever
|
35
|
5
|
|
Fatigued
|
27
|
6
|
|
Edemae
|
27
|
3
|
|
Painf
|
14
|
3
|
|
Chills
|
12
|
0
|
|
Immune system disorders
Cytokine release syndrome
|
74
|
23
|
|
Hypogammaglobulinemiag
|
17
|
6
|
|
Infections and infestations
Infections-pathogen unspecified
|
48
|
26
|
|
Bacterial infectious disorders
|
17
|
8
|
|
Fungal infectious disorders
|
11
|
5
|
|
Viral infectious disorders
|
11
|
2
|
|
Investigations
Weight decreased
|
12
|
4
|
|
Metabolism and nutrition disorders
Decreased appetite
|
14
|
4
|
|
Musculoskeletal and connective tissue disorders
Arthralgia
|
14
|
0
|
|
Musculoskeletal painh
|
13
|
1
|
|
Nervous system disorders
Headachei
|
21
|
1
|
|
Encephalopathyj
|
16
|
11
|
|
Peripheral neuropathyk
|
12
|
3
|
|
Dizzinessl
|
12
|
2
|
|
Psychiatric disorders
Anxiety
|
10
|
1
|
|
Sleep disorderm
|
10
|
0
|
|
Renal and urinary disorders
Acute kidney injuryn
|
17
|
6
|
|
Respiratory, thoracic and mediastinal disorders
Dyspneao
|
21
|
6
|
|
Coughp
|
17
|
0
|
|
Skin and subcutaneous tissue disorders
Rashq
|
11
|
0
|
|
Vascular disorders
Hypotensionr
|
25
|
9
|
|
Hemorrhages
|
22
|
8
|
|
[1]Tachycardia includes sinus tachycardia and tachycardia.
[1] Cardiac failure includes cardiac failure congestive.
b Arrhythmia includes atrial fibrillation, cardiac arrest, supraventricular tachycardia, and ventricular extrasystoles.
c Abdominal pain includes abdominal discomfort, abdominal pain, and abdominal pain upper.
d Fatigue includes fatigue and malaise.
e Edema includes face edema, fluid overload, fluid retention, generalized edema, localized edema, edema peripheral, peripheral swelling.
f Pain includes pain and pain in extremity.
g Hypogammaglobulinemia includes blood immunoglobulin G decreased, immunodeficiency, immunoglobulins decreased and hypogammaglobulinemia.
h Musculoskeletal pain includes back pain, flank pain, musculoskeletal chest pain, neck pain, and non-cardiac chest pain.
i Headache includes headache and migraine.
j Encephalopathy includes cognitive disorder, confusional state, disturbance in attention, lethargy, mental status changes, somnolence, memory impairment, metabolic encephalopathy and thinking abnormal. Encephalopathy is a dominant feature of immune effector cell-associated neurotoxicity syndrome (ICANS), along with other symptoms.
k Peripheral neuropathy includes paraesthesia, hypoaesthesia, hyperaesthesia, peripheral sensory neuropathy, neuropathy peripheral, cranial nerve paralysis, demyelinating polyneuropathy, Horner’s syndrome, polyneuropathy, and sciatica.
l Dizziness includes dizziness, presyncope, and syncope.
m Sleep disorder includes insomnia and sleep disorder.
n Acute kidney injury includes acute kidney injury, blood creatinine abnormal, and blood creatinine increased.
o Dyspnea includes dyspnea, dyspnea exertional, respiratory distress, and respiratory failure.
p Cough includes cough, productive cough, and upper-airway cough syndrome.
q Rash includes dermatitis, dermatitis acneiform, dermatitis contact, rash, rash maculo-papular, rash papular, and rash pruritic.
r Hypotension includes hypotension and orthostatic hypotension.
s Hemorrhage includes anal hemorrhage, blood urine present, cerebral hemorrhage, contusion, cystitis hemorrhagic, disseminated intravascular coagulation, duodenal ulcer hemorrhage, epistaxis, eye contusion, gastrointestinal hemorrhage, hematemesis, hematochezia, hematuria, large intestinal hemorrhage, melena, mouth hemorrhage, petechiae, pharyngeal hemorrhage, post procedural hemorrhage, pulmonary hemorrhage, purpura, retinal hemorrhage, traumatic hematoma, tumor hemorrhage, upper gastrointestinal hemorrhage.
|
Additional important adverse reactions that did not meet the threshold criteria for inclusion in Table 5 were:
Blood and lymphatic system disorders: pancytopenia (3%), hemophagocytic lymphohistiocytosis (2%), B-cell aplasia (1%)
Cardiac disorders: cardiac failurea (1%)
Eye disorders: visual impairment[1] (6%)
Gastrointestinal disorders: vomiting (9%), stomatitis (6%), dry mouth (5%), abdominal distension (4%), ascites (3%)
General disorders and administration site conditions: influenza-like illness (9%), asthenia (7%), multiple organ dysfunction syndrome (3%)
Immune system disorders: infusion related reaction (3%)
Investigations: fibrin D dimer increased (4%)
Metabolism and nutrition disorders: hypocalcemia (5%), hypercalcemia (4%), hyperferritinemiac (4%), tumor lysis syndrome (2%)
Musculoskeletal and connective tissue disorders: myalgia (5%)
[1] Visual impairment includes vision blurred and visual impairment. cHyperferritinemia includes serum ferritin increased. dMotor dysfunction includes muscle spasms, muscle twitching, myoclonus and myopathy. eTremor includes dyskinesia and tremor.
[1] Visual impairment includes vision blurred and visual impairment. cHyperferritinemia includes serum ferritin increased. dMotor dysfunction includes muscle spasms, muscle twitching, myoclonus and myopathy. eTremor includes dyskinesia and tremor.
Nervous system disorders: motor dysfunctiond (6%), tremore (6%), speech disorder[1] (4%), neuralgiag (3%), seizureh (3%), ataxia[2] (2%), ischemic cerebral infarction (1%)
Psychiatric disorders: deliriumj (5%)
Respiratory, thoracic, and mediastinal disorders: hypoxia (8%), oropharyngeal pain[3] (8%), pleural effusion (5%), nasal congestion (4%), pulmonary edemal (3%), tachypnea (3%)
Skin and subcutaneous tissue disorders: night sweats (5%), pruritus (4%), hyperhidrosis (4%), erythema (2%) Vascular disorders: thrombosism (6%), hypertension (4%), capillary leak syndrome (1%)
Laboratory Abnormalities
Table 7. Grade 3 or 4 Laboratory Abnormalities Occurring in > 10% of Patients Following KYMRIAH Infusion in Adult r/r DLBCL Patients Based on CTCAEa N = 115
|
Laboratory parameter
|
Grade 3 or 4 (%)
|
|
Hematology
Lymphopenia
|
95
|
|
Neutropenia
|
82
|
|
Leukopenia
|
78
|
|
Anemia
|
59
|
|
Thrombocytopenia
|
56
|
|
Biochemistry
Hypophosphatemia
|
24
|
|
Hypokalemia
|
13
|
|
aCTCAE = Common Terminology Criteria for Adverse Events version 4.03.
|
Adult r/r Follicular Lymphoma (FL)
The safety of KYMRIAH was evaluated in the ELARA study (Study 3), a trial that included 97 patients with r/r FL who received a single intravenous dose of KYMRIAH [see Clinical Studies (14.3)]. Patients with a history of CNS disorders or autoimmune disease requiring systemic immunosuppression were ineligible. The median age was 57 years (range, 29 to 73 years), 34% were female, 75% were White, 13% were Asian, and 1% were Black or African American.
The most common adverse reactions (incidence > 20%) were CRS, infections-pathogen unspecified, fatigue, musculoskeletal pain, headache, and diarrhea.
The adverse reactions with greater than or equal to 10% incidence for any Grade are summarized in Table 8 below.
Table 8. Selected Adverse Reactions Anytime After Infusion Reported in ≥ 10% Following Treatment with KYMRIAH in Adult r/r FL (N = 97)
|
Adverse reaction
|
All Grades
(%)
|
Grades 3 or higher
(%)
|
|
Blood and lymphatic system disorders
Febrile neutropenia
|
13
|
13
|
|
Gastrointestinal disorders
Diarrhea
|
24
|
2
|
|
Nausea
|
16
|
2
|
|
Constipation
|
16
|
0
|
|
Abdominal paina
|
10
|
1
|
|
General disorders and administration site conditions
Fatigueb
|
27
|
3
|
|
Fever
|
19
|
1
|
|
Immune system disorders
Cytokine release syndrome
|
53
|
0
|
|
Hypogammaglobulinemiac
|
18
|
1
|
|
Infections and infestations
Infections-pathogen unspecified
|
38
|
12
|
|
Viral infectious disorders
|
18
|
5
|
|
Musculoskeletal and connective tissue disorders
Musculoskeletal paind
|
25
|
1
|
|
Arthralgia
|
10
|
0
|
|
Nervous system disorders
Headachee
|
25
|
2
|
|
Respiratory, thoracic and mediastinal disorders
Coughf
|
19
|
0
|
|
Skin and subcutaneous tissue disorders
Rashg g
|
10
|
0
|
|
Abdominal pain includes abdominal pain and abdominal pain upper. bFatigue includes asthenia, fatigue, and malaise. cHypogammaglobulinemia includes blood immunoglobulin G decreased and hypogammaglobulinemia. dMusculoskeletal pain includes back pain, bone pain, flank pain, muscle discomfort, musculoskeletal chest pain, musculoskeletal pain, myalgia, neck pain, and non-cardiac chest pain. [1]Headache includes headache and migraine. [2]Cough includes cough and productive cough. [3]Rash includes rash, rash maculo-papular, and rash papular.
|
Additional important adverse reactions that did not meet the threshold criteria for inclusion in Table 8 were:
Blood and lymphatic system disorders: pancytopenia (3%), hemolysisa (2%), coagulopathyb (2%) Cardiac disorders: tachycardiac (2%), arrhythmiad (4%)
Eye disorders: visual impairmente (4%)
Gastrointestinal disorders: vomiting (9%), stomatitisf (4%), abdominal distension (2%), dry mouth (2%)
General disorders and administration site conditions: edemag (9%), painh (8%), chills (6%)
Immune system disorders: infusion related reaction (3%), graft versus host diseasei (1%), hemophagocytic lymphohistiocytosis (1%)
Infections and infestations: bacterial infectious disorders (7%), fungal infectious disorders (2%)
Investigations: weight decreased (7%)
Metabolism and nutrition disorders: decreased appetite (8%), tumor lysis syndrome (2%)
Nervous system disorders: dizziness[1] (8%), motor dysfunction[2] (9%), peripheral neuropathyl (7%), immune effector cellassociated neurotoxicity syndrome (4%), encephalopathy (3%), tremor (3%) Psychiatric disorders: sleep disorderm (6%), anxiety (2%), delirium (1%)
Renal and urinary disorder: acute kidney injuryn (4%)
Respiratory, thoracic, and mediastinal disorders: dyspneao (8%), pleural effusion (6%), oropharyngeal pain (5%), nasal congestion (2%), rhinorrhea (2%)
Skin and subcutaneous tissue disorders: pruritus (9%), night sweats (3%), erythema (2%), hyperhidrosis (1%) Vascular disorders: hypotensionp (9%), hemorrhage[3] (6%), hypertension (5%), thrombosisr (1%)
Laboratory Abnormalities
Table 9. Grade 3 or 4 Laboratory Abnormalities Occurring in > 10% of Patients Following KYMRIAH Infusion in Adult r/r FL Patients Based on CTCAEa (N = 97*)
|
Laboratory abnormality
|
Grade 3 or 4 (%)
|
|
Hematology
Neutropenia
|
63
|
|
Leukopenia
|
40
|
|
Thrombocytopenia
|
21
|
|
Anemia
|
20
|
|
Lymphopenia
|
19
|
|
Biochemistry
Hypophosphatemia
|
12
|
|
aCTCAE = Common Terminology Criteria for Adverse Events version 4.03.
*Evaluable population (n = 91 to 97) for each laboratory value included number of patients who had both baseline (before KYMRIAH infusion) and at least one post-KYMRIAH infusion on-study laboratory value available.
|
Postmarketing Experience
Because adverse events to marketed products 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 product exposure.
The following adverse events have been identified during postmarketing use of KYMRIAH.
- Anaphylactic reaction
- Neoplasms: T cell malignancies
Immunogenicity
In clinical studies, humoral immunogenicity of KYMRIAH was measured by determination of anti-murine CAR19 antibodies (anti-mCAR19) in serum pre- and post-administration. The majority of patients, 91% in ELIANA (Study 1),
94% in JULIET (Study 2), and 66% in ELARA (Study 3), tested positive for pre-dose anti-mCAR19 antibodies prior to
KYMRIAH infusion. Treatment induced anti-mCAR19 antibodies were detected in 9% and 33% of the patients in JULIET and ELARA, respectively. However, the preexisting and treatment-induced antibodies were not associated with an impact on clinical response and did not have an impact on the initial expansion and persistence of KYMRIAH. Persistence of KYMRIAH was similar between patients with positive post-infusion anti-mCAR19 antibodies compared with patients with negative post-infusion anti-mCAR19 antibodies. There is no evidence that the presence of preexisting and treatment-induced anti-mCAR19 antibodies impact the safety or effectiveness of KYMRIAH.
T cell immunogenicity responses were not observed in r/r ALL, r/r DLBCL, or r/r FL patients.
Drug Interactions for Kymriah
HIV and the lentivirus used to make KYMRIAH have limited, short spans of identical genetic material (RNA). Therefore, some commercial HIV nucleic acid tests (NATs) may yield false-positive results in patients who have received KYMRIAH.