Leukemia
is a type of blood cancer of the bone marrow and blood-forming cells. The
result is the production of abnormal blood cells, mostly the white blood cells.
Leukemia is divided into several types based on the speed of growth and the
types of cells the cancer starts in (myeloid cells versus lymphoid cells).
Fast-growing leukemias are considered to be acute. Slower-growing leukemias are
considered to be chronic. The classifications of leukemias include acute
lymphocytic leukemia (ALL), acute myelogenous leukemia (AML), chronic
lymphocytic leukemia (CLL), and chronic myelogenous leukemia (CML). ALL and AML are the two most common types of
leukemia found in children. AML and CLL are the two most common types of leukemia
found in adults. Treatment includes a combination of chemotherapy, biologicals,
radiation therapy, and hematopoietic stem cell transplantation (HSCT).
Lymphoma
is also a blood cancer, but is a cancer of the lymphatic system. Lymphomas
account for approximately half of all blood cancers that occur yearly.
Lymphomas are divided into two categories: Hodgkin lymphomas (HLs) and
non-Hodgkin lymphomas (NHLs). NHLs are differentiated as being T-cell lymphomas
or B-cell lymphomas (BCLs). The majority of NHLs are BCLs and can be
categorized as either high grade cancers that grow quickly or low grade cancers
that grow slowly. The list of BCLs is numerous and includes diffuse large
B-cell lymphoma (DLBCL), primary mediastinal BCL, follicular lymphoma (FL),
small lymphocytic lymphoma (SLL; this type of cancer is so closely related to
CLL that they are treated the same), mantle cell lymphoma (MCL), and marginal
zone lymphoma (MZL; these include extranodal marginal zone BCL [also known as
mucosa-associated lymphoid tissue lymphoma {MALT; can either be gastric or
non-gastric}], nodal marginal zone BCL, or splenic marginal zone BCL). Like
leukemias, treatment includes a combination of chemotherapy, biologicals,
radiation therapy, and hematopoietic stem cell transplantation (HSCT).
Multiple myeloma (MM) is also a type of blood cancer,
particularly of the plasma cells within the bone marrow. Like leukemia and
lymphoma, the cancer affects the immune system of the individual with the
malignancy. Like leukemia and lymphoma, treatment includes a combination of
chemotherapy, biologicals, radiation therapy, and hematopoietic stem cell
transplantation (HSCT).
Chimeric antibody receptor (CAR) T-cell therapy is a method whereby the T cells (a type of white blood cell) are altered in a laboratory in order to have them find and destroy cancer cells or other disease-producing cells. Each dose of CAR T is customized to the individual and their cancer or disease. The individual's T cells are collected during a process called leukapheresis and sent to a manufacturing center where they are genetically modified to include a new CAR-gene. The modified T cells target and bind to the specific protein on the surface of the antigen causing the cancer or disease and trigger the individual’s own immune system to help destroy the target. Prior to initiating the CAR T infusion, individuals undergo lymphodepleting chemotherapy to reduce the level of white blood cells and help the body accept the reprogrammed CAR-T cells.
AXICABTAGENE CILOLEUCEL (YESCARTA)
On October 18, 2017, the US Food and Drug Administration (FDA) approved axicabtagene ciloleucel (Yescarta) for the treatment of adult individuals with relapsed or refractory (R/R) large B-cell lymphoma after two or more lines of therapy. Axicabtagene ciloleucel (Yescarta) is the second cluster of differentiation (CD)19-directed genetically modified autologous T-cell immunotherapy available in the United States. Like tisagenlecleucel (Kymriah), axicabtagene ciloleucel (Yescarta) is customized to the individual after the T cells are harvested. The T cells are genetically modified to express a chimeric antigen receptor that targets CD19-expressing cells.
The safety and efficacy of axicabtagene ciloleucel (Yescarta) for the treatment of adult individuals with R/R B-cell NHL were evaluated in a single arm, open-label, multicenter trial, phase 1/2 trial (ZUMA-1; NCT02348216). Individuals eligible for the trial had refractory disease to the most recent therapy or relapse within 1 year of autologous HSCT. The primary endpoint was objective response rate (ORR). Key secondary endpoints included duration of response (DOR) and safety data. Of the 101 individuals who received the axicabtagene ciloleucel (Yescarta) infusion, the ORR was 82 percent (95 percent confidence interval [CI], 73 to 89) with 54 percent achieving a complete remission (CR) and 28 percent achieving a partial remission (PR). At the median follow-up of 7.9 months, individuals in complete remission had not reached the estimated DOR. Grade 3 or higher adverse events occurred in 95 percent of the individuals. Grade 3 or higher cytokine release syndrome (CRS) occurred in 17 percent of individuals and grade 3 or higher neurologic events occurred in 28 percent of individuals. There were four deaths, two of which were believed to be related to the infusion. A long-term follow-up for a median of 27.1 months (range, 25.7 to 28.8) was also published. The ORR was now 83 percent, with a CR of 58 percent and PR of 25 percent. The median DOR was 11.1 months (95 percent CI, 4 to not estimable). The median PFS was 5.9 months (95 percent CI, 3.3 to 15.0). The median overall survival (OS) was not reached (95 percent CI, 12.8 to not estimable). No participants were lost to follow up.
The safety and efficacy of axicabtagene ciloleucel (Yescarta) for the treatment of adult individuals with R/R indolent NHL, including FL and MZL, were evaluated in a single-arm, open-label, multicenter, phase 2 trial (ZUMA-5; NCT03105336). Individuals eligible for the trial had indolent NHL, including FL and nodal or extranodal MZL, that was R/R after two or more previous lines of therapy. Exclusion criteria included autologous HSCT within the previous 6 months, previous allogeneic HSCT, previous CD19-targeted therapy, or previous CAR T-cell therapy. Disease assessments via positron emission tomography-computed tomography (PET-CT) or CT were performed by the investigators and an independent review committee. The primary endpoint of the trial was ORR. Key secondary endpoints included DOR, PFS, OS, and safety. A total of 153 individuals underwent leukapheresis and 148 were transfused with axicabtagene ciloleucel (Yescarta). The median follow-up was 17.5 months (range, 14.1 to 22.6). Of 109 individuals who were able to be assessed in the updated analysis, the ORR was 92 percent [95 percent CI, 85 to 97]) with 83 individuals (76 percent) having a CR. At a cutoff of 18 months, the estimated PFS rate was 64.8 percent (95 percent CI, 54.2 to 73.5). DOR was not reached. At the 18-month cutoff, the OS rate was 87.4 percent (95 CI, 79.2 to 92.5). Among all individuals who were transfused with axicabtagene ciloleucel (Yescarta), 147 (99 percent) experienced treatment-emergent adverse events with 128 (86 percent) experiencing grade 3 or higher events. CRS occurred in 121 individuals (82 percent) with grade 3 or higher occurring in 10 individuals (7 percent). Neurological events occurred in 87 individuals (59 percent) with grade 3 or higher occurring in 28 individuals (19 percent). A total of 19 individuals died after transfusion with axicabtagene ciloleucel (Yescarta), but only one death was believed to be due to the infusion.
The safety and efficacy of axicabtagene ciloleucel (Yescarta) for the treatment of adult individuals with R/R large B-cell lymphoma versus standard of care (SOC) were evaluated in a randomized, open-label, multicenter, phase 3 trial (ZUMA-7; NCT03391466). Individuals with large B-cell lymphoma that had become R/R after no more than 12 months after receiving first-line chemoimmunotherapy were randomly assigned in a 1:1 ratio to receive either axicabtagene ciloleucel (Yescarta) or SOC therapy (two or three cycles of investigator-selected, protocol-defined chemoimmunotherapy; if the individual responded to the chemoimmunotherapy, they received high-dose chemotherapy and autologous HSCT). The primary endpoint of the trial was event-free survival (EFS) based on assessment by a blinded central reviewer. Key secondary endpoints included OS and response to the treatment. In the trial, 180 individuals were randomly assigned into the axicabtagene ciloleucel (Yescarta) cohort and 179 individuals into the SOC cohort. At a median follow-up of 24.9 months, the median EFS in the axicabtagene ciloleucel (Yescarta) cohort was 8.3 months versus 2.0 months in the SOC cohort. The 24-month EFS was 41 percent in the axicabtagene ciloleucel (Yescarta) cohort versus 16 percent in the SOC cohort (hazard ratio [HR] for event/death, 0.40; 95 percent CI, 0.31 to 0.51; P<0.001). The OS rate at 24 months was 61 percent in the axicabtagene ciloleucel (Yescarta) cohort and 52 percent in the SOC cohort. A response occurred in 83 percent of individuals in the axicabtagene ciloleucel (Yescarta) cohort and 50 percent of individuals in the SOC cohort, with a complete response occurring in 65 percent of individuals in the axicabtagene ciloleucel (Yescarta) cohort versus 32 percent in the SOC cohort. Grade 3 or higher adverse events occurred in 91 percent of individuals in the axicabtagene ciloleucel (Yescarta) cohort and 83 percent of the SOC cohort. Grade 3 or higher CRS occurred in six percent and grade 3 or higher neurological event occurred in 21 percent of individuals receiving axicabtagene ciloleucel (Yescarta), but no deaths related to either CRS or neurologic events were reported.
BREXUCABTAGENE AUTOLEUCEL (TECARTUS)
On July 24, 2020, the FDA approved brexucabtagene autoleucel (Tecartus) for the treatment of adult individuals with R/R MCL. Brexucabtagene autoleucel (Tecartus) is a CD19-directed genetically modified autologous T-cell immunotherapy and is customized to the individual after the T cells are harvested. The T cells are genetically modified to express a chimeric antigen receptor that targets CD19-expressing cells.
Safety and efficacy of brexucabtagene autoleucel (Tecartus) for the treatment of adult individuals with R/R MCL, who had previously received anthracycline- or bendamustine-containing chemotherapy, an anti-CD20 antibody, and a Bruton tyrosine kinase (BTK) inhibitor (ibrutinib or acalabrutinib), were evaluated in a single-arm, open-label, multicenter phase 2 trial (ZUMA-2; NCT02601313). Eligible individuals had disease progression after their last regimen or refractory disease to their most recent therapy. A total of 74 individuals were enrolled. Brexucabtagene autoleucel (KTE-X19) was manufactured for 71 individuals and administered to 68. The primary efficacy analysis showed that 93 percent (95 percent CI, 84 to 98) had an objective response as assessed by an independent radiologic review committee with 67 percent (95 percent CI, 53 to 78) having a CR. At a median follow-up of 12.3 months (range, 7.0 to 32.3), 57 percent of the 60 individuals in the primary efficacy analysis were in remission. At 12 months, the estimated PFS and OS were 61 percent and 83 percent, respectively. Common adverse events of grade 3 or higher were cytopenias (in 94 percent of the individuals) and infections (in 32 percent). Grade 3 or higher CRS and neurologic events occurred in 15 percent and 31 percent of individuals, respectively; none were fatal
The safety and efficacy of brexucabtagene autoleucel (Tecartus) for the treatment of adult individuals with ALL were evaluated in a single-arm, open-label, multicenter, phase 1/2 trial (ZUMA-3; NCT02614066). Individuals were eligible for treatment if they had primary refractory ALL, had a first relapse after a remission that lasted 1 year or less, had R/R ALL after second- or higher line of therapy, or R/R ALL 100 days or more after allogeneic HSCT). A total of 71 individuals were enrolled. Brexucabtagene autoleucel (KTE-X19) was manufactured for 65 individuals and administered to 55. The primary endpoint was the rate of overall CR or CR with incomplete hematological recovery by central assessment. Fifty-six percent of the individuals achieved a CR (95 percent CI, 37.8 to 65.7) and 15 percent of the individuals achieved a CR with incomplete hematological recovery. Median OS was 18.2 months in the treated individuals and was not reached in individuals who responded to the treatment. All the treated individuals experienced at least one adverse event. Grade 3 or higher cytopenia occurred in 76 percent of individuals, CRS occurred in 89 percent of individuals, and neurological events occurred in 60 percent of individuals. Six of the treated individuals (11 percent) died secondary to grade 5 adverse events, with two of these believed to be treatment related.
CILTACABTAGENE AUTOLEUCEL (CARVYKTI)
On February 28, 2022, the FDA approved ciltacabtagene autoleucel (Carvykti) for the treatment of adult individuals with R/R MM after four or more prior lines of therapy, including a proteasome inhibitor, an immunomodulatory agent, and an anti-CD38 monoclonal antibody. Ciltacabtagene autoleucel (Carvykti) is a B-cell maturation antigen (BCMA)-directed genetically modified autologous T-cell immunotherapy.
The safety and efficacy of ciltacabtagene autoleucel (Carvykti) for the treatment of adult individuals with MM were evaluated in a single-arm, open-label, multicenter, phase 1b/2 trial (CARTITUDE-1; NCT03548207). Individuals were eligible for treatment if they had a diagnosis of R/R MM and had received three or more previous lines of therapy or were double-refractory to a proteasome inhibitor and an immunomodulatory drug, and had received a proteasome inhibitor, an immunomodulatory drug, and an anti-CD38 antibody. One of the primary endpoints was overall response rates along with safety data. Key secondary endpoints included DOR and PFS. A total of 113 individuals were enrolled in the study and 97 individuals received the ciltacabtagene autoleucel (Carvykti) infusion. The overall response rate was 97 percent (95 percent CI, 91.2 to 99.4 in 94 of 97 individuals). A stringent complete response was achieved by 65 individuals (67 percent). Neither median DOR (95 percent CI, 15.9 to not estimable) nor median PFS (95 percent CI, 16.8 to not estimable) was reached as of the data cut-off (median follow-up, 12.4 months). At 1 year, the PFS was 77 percent (95 percent CI, 66.0 to 84.3) and overall survival rate was 89 percent (95 percent CI, 80.2 to 93.5). All of the transfused individuals experienced an adverse event with hematological adverse events being the most common. CRS occurred in 95 percent (92 of 97) of individuals, but only four percent were grade 3 or 4. Fourteen individuals died during the study, with six of these believed to be treatment related.
The safety and efficacy of ciltacabtagene autoleucel (Carvykti) for the treatment
of adult individuals with MM who were refractory to lenalidomide were evaluated
in a phase 3, randomized, open-label study (CARTITUDE-4; NCT04181827) versus
the provider’s choice of effective standard therapy (pomalidomide, bortezomib,
dexamethasone [PVd] or daratumumab, pomalidomide, dexamethasone [DPd]) in
individuals who had received 1 to 3 lines of prior therapy that included a
proteasome inhibitor and an immunomodulatory drug. The primary endpoint was PFS
up to 6 years or death due to any cause, whichever occurred first. Key
secondary endpoints included ORR and percentage of individuals with CR or
better (stringent CR). A total of 419 individuals were randomized in a 1:1
ratio to treatment with ciltacabtagene autoleucel (Carvykti) or standard
therapy. At a median follow-up of 15.9 months, the medium PFS was not reached
for the ciltacabtagene autoleucel (Carvykti) cohort versus 11.8 months for the
standard therapy cohort (P<0.0001). The ORR was 84.6 percent for the ciltacabtagene
autoleucel (Carvykti) cohort versus 67.8 percent for the standard therapy
cohort (P<0.0001). The percentage of individuals that experienced a complete
response or better in the ciltacabtagene autoleucel (Carvykti) cohort was 74.1
percent versus 22.3 percent for the standard therapy cohort (P<0.0001). Of
the individuals in the ciltacabtagene autoleucel (Carvykti) cohort, 76.1
percent experienced CRS; 1.1 percent grade 3 or 4, none grade 5. The percentage
of adverse events were similar between the two cohorts.
IDECABTAGENE VICLEUCEL (ABECMA)On February 28, 2022, the FDA approved idecabtagene vicleucel (Abecma) for the treatment of adult individuals with R/R MM after four or more prior lines of therapy, including a proteasome inhibitor, an immunomodulatory agent, and an anti-CD38 monoclonal antibody. Idecabtagene vicleucel (Abecma) is a BCMA-directed genetically modified autologous T-cell immunotherapy.The safety and efficacy of idecabtagene vicleucel (Abecma) for the treatment of adult individuals with MM were evaluated in a single-arm, open-label, multicenter, phase 2 trial (KarMMa; NCT03361748). Individuals were eligible for treatment if they had a diagnosis of R/R MM and had received three or more previous lines of therapy including an immunomodulatory agent, a proteasome inhibitor, and an anti-CD38 monoclonal antibody. The primary endpoint was an overall response of partial response or better. A key secondary endpoint was the rate of complete response or better. A total of 140 individuals were enrolled with 128 individuals being transfused with target doses of 150 × 106 CAR T cells, 300 × 106 CAR T cells, or 450 × 106 CAR T cells. Ninety-two percent of the individuals had received a prior autologous HSCT. At a median follow-up of 13.3 months (range, 0.2 to 21.2), 94 individuals (73 percent; 95 percent CI, 66 to 81) had a response to the infusion (P<0.001), and 42 individuals (33 percent) had a complete or stringent complete response. The median DOR for any dose was 10.7 months (95 percent CI, 9.0 to 11.3) with a median DOR of 11.3 months (95 percent CI, 10.3 to 11.4) for the 450 × 106 cohort. The median PFS for any dose was 8.8 months (95 percent CI, 5.6 to 11.6) with a PFS of 12.1 months (95 percent CI, 8.8 to 12.3) for the 450 × 106 cohort. All of the individuals who were transfused reported adverse events, with 99 percent (127 of 128) experiencing grade 3 or 4 events that were mostly hematological. Infections occurred in 88 individuals (69 percent). CRS occurred in 107 individuals (84 percent) with most being grade 1 or 2. A total of 44 individuals (34 percent) died during the study period, with four of these believed to be treatment related.
The safety and efficacy of idecabtagene
vicleucel (Abecma) for the treatment of adult individuals with R/R MM who had
received 2 to 4 prior lines of therapy, including an immunomodulatory agent, a
proteasome inhibitor, and daratumumab, and were refractory to the most recent
regimen were evaluated in a phase 3, randomized, open-label study (KarMMa-3; NCT03651128) versus
the provider’s choice of effective standard therapy (daratumumab, pomalidomide,
dexamethasone [DPd], daratumumab, bortezomib, dexamethasone [DVd], ixazomib,
lenalidomide, dexamethasone [Ird], carfilzomib, dexamethasone [Kd], elotuzumab,
pomalidomide, dexamethasone [EPd] depending on what treatment the individual
had previously received. The primary endpoint was PFS. Key secondary endpoints
included ORR and the percentage of individuals who achieved a CR or better
(stringent CR). A total of 386 individuals were randomized in a 2:1 ratio to
treatment with idecabtagene vicleucel (Abecma) or standard therapy. At a median
follow-up of 18.6 months, the median PFS was 13.3 months in the idecabtagene
vicleucel (Abecma) cohort versus 4.4 months in the standard treatment cohort
(P<0.0001). The ORR was 71 percent for the idecabtagene vicleucel (Abecma)
cohort versus 42 percent for the standard therapy cohort (P<0.0001). The
percentage of individuals in the idecabtagene vicleucel (Abecma) cohort who
achieved CR or better was 98 percent versus 7 percent in the standard therapy
cohort. In the idecabtagene vicleucel (Abecma) cohort, 88 percent experienced
CRS, with 5 percent being grade 3 or higher. The percentage of adverse events
were higher in the idecabtagene vicleucel (Abecma) cohort than in the standard
therapy cohort, but were consistent with previous studies. No new safety
signals were identified.
LISOCABTAGENE MARALEUCEL (BREYANZI)
On February 5, 2021, the FDA approved lisocabtagene maraleucel (Breyanzi) for the treatment of adult individuals with R/R large B-cell lymphoma after two or more lines of systemic therapy, including DLBCL not otherwise specified (including DLBCL arising from indolent lymphoma), high-grade B-cell lymphoma, primary mediastinal large B-cell lymphoma, and FL grade 3B. Lisocabtagene maraleucel (Breyanzi) is a CD19-directed genetically modified autologous T-cell immunotherapy. During the lisocabtagene maraleucel (Breyanzi) manufacturing process, CD8+ and CD4+ T cells are selected from leukapheresis material and then independently activated, transduced, and expanded. Both of these are then infused into the individual.
The safety and efficacy of lisocabtagene maraleucel (Breyanzi) for the treatment of adult individuals with R/R large B-cell lymphoma after two or more lines of systemic therapy were evaluated in a single-arm, open-label, multicenter phase 1 trial (TRANSCEND-NHL-001; NCT02631044). Primary endpoints were ORR assessed by an independent review committee, adverse events, and dose-limiting toxicities. A total of 344 individuals underwent leukapheresis with 269 individuals being transfused with target doses of 50 ×106 CAR T cells (one or two doses), 100 × 106 CAR T cells, or 150 × 106 CAR T cells and 25 individuals received an infusion of a nonconforming CAR T-cell product (i.e., one component did not meet criteria). At a median follow-up of 18.8 months (95 percent CI, 15.0 to 19.3) an ORR was achieved by 186 individuals (73 percent; 95 percent CI, 66.8 to 78.0; P<0.0001) in the efficacy-evaluable set (256 individuals who had received the infusion and had PET-positive disease) with a CR being achieved in 136 individuals (53 percent; 95 percent CI, 46.8 to 59.4; P<0.0001). The median DOR was not reached at a median follow-up of 12 months (95 percent CI, 11.2 to 16.7). The median PFS was 6.8 months (95 percent CI, 3.3 to 14.1) after a median follow up of 12.3 months. Median OS was 21.1 months (95 percent CI, 13.3 to not estimable) after a median follow-up of 17.5 months (95 percent CI, 12.9 to 17.8). CRS occurred in 113 individuals (42 percent) with grade 3 or higher occurring in six individuals (two percent). Nine individuals (six percent) experienced a dose-limiting toxicity including one individual who died from diffuse alveolar damage after receiving a dose of 50 × 106 CAR T cells. Seven individuals (three percent) of the total individuals who were infused died from treatment-emergent events.
On June 24, 2022, the FDA approved lisocabtagene maraleucel (Breyanzi) for the treatment of adult individuals with refractory large B-cell lymphoma to first-line chemoimmunotherapy or relapse within 12 months of first-line chemoimmunotherapy who were eligible for autologous HSCT. This approval was based on a randomized, parallel-group, open-label, multicenter phase 3 trial (TRANSFORM; NCT03575351). A total of 184 individuals were divided 1:1 into two cohorts. One cohort received a SOC regimen, and the other cohort received lisocabtagene maraleucel (Breyanzi). The primary endpoint was EFS. Secondary endpoints were CRR, PFS, OS, ORR, DOR, and adverse events. At the interim data analysis, the median EFS for the lisocabtagene maraleucel (Breyanzi) cohort was 10.1 months (95 percent CI, 6.1 to not reached) compared to 2.3 months (95 percent CI, 2.2 to 4.3) for the SOC cohort; P<0.0001. The CRR for the lisocabtagene maraleucel (Breyanzi) cohort was 66 percent (95 percent CI, 56 to 76) versus 39% (95 percent CI, 29 to 50) for the SOC cohort. The ORR in the lisocabtagene maraleucel (Breyanzi) cohort was 85 percent (95 percent CI, 77 to 92) versus 48 percent (95 percent CI, 37 to 59) in the SOC cohort. The most common grade 3 or worse adverse event was neutropenia in 80 percent of the lisocabtagene maraleucel (Breyanzi) cohort and 51 percent of the SOC cohort. Grade 3 CRS occurred in 1 percent, and neurological events occurred in 4 percent of individuals treated with lisocabtagene maraleucel (Breyanzi). There were no treatment-related deaths in the lisocabtagene maraleucel (Breyanzi) cohort and one treatment-related death in the SOC cohort.
The safety and efficacy of lisocabtagene maraleucel (Breyanzi) in adult individuals with R/R large B-cell lymphoma after first-line treatment and who were ineligible for HSCT (based on age, performance status, and/or comorbidities) were studied in TRANSCEND-PILOT (NCT03483103). This was a single-arm, open-label, multicenter phase 2 study that enrolled 61 participants. The primary endpoint was ORR. The secondary endpoints were CRR, DOR, PFS, EFS, OS, and adverse events. The ORR was 80 percent (95 percent CI, 68 to 89); P<0.0001). At a median follow-up of 13.0 months, the median PFS was 9.03 months (95 percent CI, 4.17 to not reached). At a median follow up of 15.5 months, the median DOR was 12.09 months (95 percent CI, 6.24 to not reached). In the intention-to-treat population, the CRR was 46 percent (95 percent CI, 34 to 58). In this same group, the median EFS was 8.15 months (95 percent CI, 4.37 to 13.34). Median OS was not reached. CRS occurred in 38 percent (one grade 3) of participants and neurological events occurred in 31 percent (three grade 3) of individuals. There were no grade 4 events and no deaths.
The safety
and efficacy of lisocabtagene maraleucel (Breyanzi) in adult individuals with
R/R CLL or SLL after 2 or more lines of therapy for individuals with high-risk
features, or after 3 or more lines of therapy for individuals with
standard-risk features was studied in a phase 1/2 open-label study (TRANSCEND
CLL 004; NCT03331198). The individuals were required to have received a Bruton
tyrosine kinase (BTK) inhibitor and a BCL2 inhibitor as part of their prior
therapy. The phase 1 portion of the study was the dose-finding portion of the
study that determined the dose of lisocabtagene maraleucel (Breyanzi) that
would be used in the phase 2 portion of the study. The primary endpoint of the
phase 2 portion of the study was the ORR or remission at 24 months. Key
secondary endpoints were DOR, PFS, and OS. Of the 113 individuals who underwent
leukapheresis, 94 received lisocabtagene maraleucel (Breyanzi). The ORR was 45
percent. The median DOR was 35.3 months. The median PFS was 11.9 months. The
median OS was 30.3 months. In individuals who received lisocabtagene maraleucel
(Breyanzi), 9 percent experienced grade 3 CRS; none experienced grade 4 or 5.
One death from macrophage activation syndrome-hemophagocytic
lymphohistiocytosis (MAS/HLH) was felt to be related to treatment. There was a
higher incidence of CRS and neurological events in treated individuals, which
is consistent with other studies in individuals with CLL.
The safety and efficacy of lisocabtagene maraleucel (Breyanzi) in adult
individuals with R/R FL after 2 or more lines of therapy
were studied in a phase 2 open label study (TRANSCEND FL; NCT04245839). The
individuals were required to have received an anti-CD20 and alkylating agent as
part of their prior therapy. The primary endpoint was ORR. Key secondary
endpoints included the percentage of CRs and DOR. Of the 114 individuals who
underwent leukapheresis, 107 received lisocabtagene maraleucel (Breyanzi). The ORR was 95.7 percent. The CR rate was 73.4
percent. At a median of 18 months, the DOR has not been reached. CRS occurred
in 58 percent of treated individuals, but only 1 percent was grade 3 with none
being grade 4 or 5. Two deaths were felt to be treatment related. One was from
MAS/HLH, and the other was due to progressive multifocal leukoencephalopathy
after the 90-day treatment-emergent period.
The safety
and efficacy of lisocabtagene maraleucel (Breyanzi) in adult individuals with
R/R MCL after 2 or more lines of therapy was studied in a phase 1 open label
study (TRANSCEND-NHL 001, MCL cohort; NCT NCT02631044). The individuals were
required to have received an alkylating agent, a BTK inhibitor, and either
rituximab or other CD20-targeted agent as part of their prior therapy. A key
primary endpoint included ORR at 24 months. Key secondary endpoints included
percentage of CRs and DOR. Of the 89 individuals who underwent leukapheresis,
71 received lisocabtagene maraleucel (Breyanzi). The ORR was 85.3 percent. The
CR rate was 67.6 percent. The median DOR was 13.3 months. CRS was reported in
61 percent of treated individuals with 1 percent being grade 4, and none being
grade 3 or 5. Only 1 death was considered to be treatment related.
TISAGENLECLEUCEL (KYMRIAH)
On August 30, 2017, the FDA approved tisagenlecleucel (Kymriah) for the treatment of individuals up to 25 years old with B-cell precursor ALL that is refractory or in second- or later stage relapse. Tisagenlecleucel (Kymriah) is a CD19-directed genetically modified autologous T cell immunotherapy.The efficacy and safety of tisagenlecleucel (Kymriah) in pediatric and young adult individuals with R/R B-cell ALL were evaluated in a single-arm, open-label, multicenter, phase 2 study (ELIANA; NCT02435849). Enrolled individuals had to
have received at least 1 prior line of therapy. The primary outcome of this trial is the ORR within 3 months of infusion of tisagenlecleucel (Kymriah). Secondary outcomes included DOR, EFS, OS, and safety. Of 92 individuals who were enrolled, 75 received an infusion. Of the 75 individuals infused with tisagenlecleucel (Kymriah) and who had at least 3 months of follow-up, the ORR was 81 percent (95 percent CI, 71 to 89) with 45 individuals (60 percent) achieving CR and 16 individuals (21 percent) having CR with incomplete hematologic recovery and all of them were minimal residual disease (MRD) negative. DOR was defined as the time since onset of complete remission to relapse or death due to underlying cancer, whichever is earlier. A median duration of remission DOR was not reached by any of the 61 individuals who achieved a CR or CR with incomplete hematologic recovery. The rate of relapse-free survival was 80 percent (95 percent CI, 65 to 89) at 6 months and 59 percent (95 percent CI, 41 to 73) at 12 months. The rate of EFS at 6 months was 73 percent (95 percent CI, 60 to 82) and at 12 months was 50 percent (95 percent CI, 35 to 64) with median EFS not being achieved. The rate of OS for all 75 individuals who received an infusion was 90 percent (95 percent CI, 81 to 95) at 6 months and 76 percent (95 percent CI, 63 to 86) at 12 months. Of the 75 individuals who received an infusion, 71 (95 percent) experienced an adverse event that was believed to be related to the infusion. CRS occurred in 77 percent of the individuals who received an infusion, and neurologic events occurred in 40 percent. A total of 19 individuals died after receiving an infusion, but only three were believed to be due to the infusion.On May 1, 2018, the FDA approved tisagenlecleucel (Kymriah) for the treatment of adults with R/R DLBCL after at least two prior lines of therapy. The efficacy and safety of tisagenlecleucel (Kymriah) were evaluated in an open-label, single-arm multicenter, phase 2 trial (JULIET; NCT02445248). The study included adults with R/R DLBCL who had received two or more lines of chemotherapy, including rituximab and anthracycline, or were ineligible for autologous HSCT or had relapsed following autologous HSCT. The primary endpoint was ORR. Key secondary endpoints included DOR, OS, and safety data. A total of 165 individuals were enrolled and 111 received an infusion. Of the 93 individuals in the efficacy analysis set (individuals who had received an infusion and who were able to be followed for at least 3 months after), the ORR was 52 percent (95 percent CI, 41 to 62) with 40 percent obtaining a CR and 12 percent a PR. The median DOR was not reached (95 percent CI, 10 months to not estimable). The estimated rate of PFS at 12 months was 83 percent. The median OS among individuals who had received an infusion was 12 months (95 percent CI, 7 months to not reached). The percentage of individuals who received an infusion who experienced grade 3 or higher CRS was 22 percent. The percentage of these individuals who experienced a neurologic event of grade 3 or higher was 12 percent. Although 3 individuals died after receiving an infusion, none of these were due to the infusion but were from disease progression. On May 27, 2022, the FDA approved tisagenlecleucel (Kymriah) for the treatment of adults with R/R FL after two or more lines of systemic therapy. This indication was approved under accelerated approval and continued approval may be contingent upon verification and description of clinical benefit in confirmatory trials. The efficacy and safety of tisagenlecleucel (Kymriah) were evaluated in an open-label, single-arm multicenter, phase 2 trial (ELARA; NCT03568461). The study included 98 adults with R/R FL grades 1 to 2 who had previously received two or more lines of treatment or had relapsed after autologous HSCT. Individuals were not eligible for the study if they had previously undergone allogeneic HSCT or had active CNS malignancy. The primary endpoint was CRR. Key secondary endpoints included ORR, DOR, PFS, OS, and safety. Based on interim data, the CRR was 69.1 percent (95 percent CI, 58.8 to 78.3). The ORR was 86.2 percent (95 percent CI, 77.5 to 92.4). The data for the other secondary endpoints has not matured yet. At the time of the publication of the data, the rate of CRS was 48.5 percent (with none grade 3 or higher) and the rate of neurological events was 37.1 percent (3 percent were grade 3 or higher). There have not been any treatment-related deaths. OFF-LABEL INDICATIONS
There may be additional indications contained in the Policy section of this document due to evaluation of criteria highlighted in the Company’s off-label policy, and/or review of clinical guidelines issued by leading professional organizations and government entities.