CALQUENCE® (acalabrutinib) plus chemoimmunotherapy reduced the risk of disease progression or death by 27% vs. standard of care in patients with untreated mantle cell lymphoma in ECHO Phase III trial
AstraZeneca's ECHO Phase III trial revealed that CALQUENCE® (acalabrutinib) combined with bendamustine and rituximab significantly reduced the risk of disease progression or death by 27% in untreated mantle cell lymphoma (MCL) patients compared to standard chemoimmunotherapy. Median progression-free survival (PFS) was 66.4 months with CALQUENCE vs. 49.6 months with the standard treatment. The study demonstrated a favorable trend in overall survival (OS) but the data remains immature. Safety profiles were consistent with previous findings, and no new safety signals were identified. These results were presented at the European Hematology Association (EHA) 2024 Hybrid Congress in Madrid.
- CALQUENCE reduced the risk of disease progression or death by 27%.
- Median PFS was 66.4 months with CALQUENCE vs. 49.6 months with standard treatment.
- PFS improved to 36% when COVID-19-related deaths were censored.
- Favorable trend in OS with CALQUENCE combination.
- No new safety signals identified; safety profile consistent with known data.
- CALQUENCE demonstrated potential to change the standard of care in MCL.
- Overall survival data remains immature and inconclusive.
- High incidence of Grade 3 or higher adverse events (88.9% with CALQUENCE).
- AEs leading to discontinuation higher with CALQUENCE (10.4%) vs. placebo (6.4%).
- Grade 5 events related to COVID-19 occurred in 9.4% of CALQUENCE patients.
Insights
The ECHO Phase III trial results for CALQUENCE® (acalabrutinib) highlight its significant potential in treating previously untreated mantle cell lymphoma (MCL). The study demonstrated a 27% reduction in the risk of disease progression or death compared to the standard chemoimmunotherapy regimen. Notably, the median progression-free survival (PFS) for the CALQUENCE combination was 66.4 months, in contrast to 49.6 months for the standard treatment. This extended PFS is highly relevant given that MCL is known for its aggressive nature and poor prognosis. The trial also showed a favorable trend in overall survival (OS), though the data is not yet mature. This offers a potential shift in treatment paradigms for MCL, especially for older patients who represent the majority of MCL cases.
While the safety profile of CALQUENCE was consistent with previous findings, the adverse events (AEs) were closely aligned between both treatment arms. This consistency in safety, combined with superior PFS, could make CALQUENCE a preferred first-line therapy for MCL. Additionally, the trial's wide geographical scope and large sample size add robustness to the findings, enhancing their generalizability across different populations. However, the long-term OS benefit remains to be conclusively established as the study progresses.
For investors, the positive results from the ECHO Phase III trial are promising for AstraZeneca's financial outlook. The success of CALQUENCE in extending PFS by 16.8 months over standard chemoimmunotherapy highlights its potential market dominance in the MCL space. Given MCL's aggressive nature and the need for effective first-line treatments, CALQUENCE could see strong adoption. This would drive revenue growth, especially as CALQUENCE is already approved for other indications like chronic lymphocytic leukemia (CLL) and small lymphocytic lymphoma (SLL).
Considering the broader market, the competition in the BTK inhibitor space is fierce, with drugs like Imbruvica and Brukinsa already established. CALQUENCE's unique selling proposition will rely heavily on its demonstrated efficacy in this trial. Furthermore, the safety profile showing comparable AEs to standard treatments reinforces its viability as a safer alternative. Investors should monitor further updates on OS data and potential regulatory approvals, as these will significantly impact market dynamics and AstraZeneca's stock performance.
The ECHO Phase III trial's findings are a testament to the advancements in targeted therapy for MCL. CALQUENCE, a BTK inhibitor, showed a significant improvement in PFS, reducing the risk of disease progression or death by 27% and 36% when COVID-19 deaths were censored. This indicates its robustness even under varying conditions. The trial's design, which included a double-blind, placebo-controlled approach across 27 countries, strengthens the validity of the results.
The trial's outcome may prompt further research into BTK inhibitors in other hematological malignancies. The notable trend in OS improvement, though not mature, along with CALQUENCE's manageable safety profile, suggests a favorable benefit-risk ratio. This could encourage more widespread clinical adoption and integration into treatment guidelines. However, ongoing monitoring for long-term survival and real-world effectiveness will be important for sustained clinical and commercial success.
First and only BTK inhibitor to demonstrate favorable overall survival trend vs. standard-of-care chemoimmunotherapy in this setting
These results were presented today in a late-breaking oral presentation at the European Hematology Association (EHA) 2024 Hybrid Congress in
Results showed the CALQUENCE combination regimen reduced the risk of disease progression or death by
The secondary endpoint of OS showed a favorable trend for the CALQUENCE combination compared to standard-of-care chemoimmunotherapy, further supporting the clinical benefit of this combination (HR 0.86;
The ECHO trial enrolled during the pandemic period, and a pre-specified analysis censoring for COVID-19-related deaths was conducted to assess the impact. PFS was further improved in both arms, with the CALQUENCE combination reducing the risk of disease progression or death by
Michael Wang, MD, Puddin Clarke Endowed Professor, Director of Mantle Cell Lymphoma Program of Excellence, Co-Director of Clinical Trials at MD Anderson Cancer Center in
Susan Galbraith, Executive Vice President, Oncology R&D, AstraZeneca, said: “The ECHO trial data demonstrate important progress in improving outcomes for patients with mantle cell lymphoma. The 16.8 months of additional time patients can live without their disease progressing is highly clinically meaningful, together with a trend to improvement in overall survival. We therefore believe CALQUENCE plus chemoimmunotherapy will be an important new option for patients living with this disease.”
Summary of Results: ECHO
|
CALQUENCE plus bendamustine and rituximab (n=299) |
Placebo plus bendamustine and rituximab (n=299) |
Median PFS (months) |
66.4 |
49.6 |
PFS HR ( |
0.73 (0.57-0.94) |
|
PFS p-value |
0.0160 |
|
OS HR ( |
0.86 (0.65-1.13) |
|
OS p-value |
0.2743 |
|
Censoring for COVID-19 deaths |
||
Median PFS |
NR |
61.6 |
PFS HR ( |
0.64 (0.48-0.84) |
|
PFS p-value |
0.0017 |
|
OS HR ( |
0.75 (0.53-1.04) |
|
OS p-value |
0.0797 |
|
NR=Not reached |
The safety and tolerability of CALQUENCE was consistent with its known safety profile, and no new safety signals were identified. Grade 3 or higher adverse events (AEs) due to any cause occurred in
Additional AstraZeneca data at EHA
In addition to these compelling data, AstraZeneca data at EHA 2024 shows how the Company is advancing a diverse and innovative pipeline spanning multiple modalities including next-generation T cell engagers, cell therapy and antibody drug conjugates, to enable the creation of novel combination regimens across a range of blood cancers.
Results from the ongoing Phase I, dose-escalation trial of AZD0486, a novel CD19xCD3 T cell engager, showed durable responses in patients with heavily pretreated relapsed/refractory follicular lymphoma with a median follow up of 11 months. Complete response rates of
In an oral presentation, preliminary data was shared from an investigator-initiated trial of AstraZeneca’s first hematology cell therapy, GC012F (AZD0120), in patients with transplant-eligible high-risk, newly diagnosed multiple myeloma. Early results showed that GC012F had an overall response rate of
INDICATIONS AND USAGE
CALQUENCE is a Bruton tyrosine kinase (BTK) inhibitor indicated for the treatment of adult patients with mantle cell lymphoma (MCL) who have received at least one prior therapy.
This indication is approved under accelerated approval based on overall response rate. Continued approval for this indication may be contingent upon verification and description of clinical benefit in confirmatory trials.
CALQUENCE is also indicated for the treatment of adult patients with chronic lymphocytic leukemia (CLL) or small lymphocytic lymphoma (SLL).
IMPORTANT SAFETY INFORMATION ABOUT CALQUENCE® (acalabrutinib) tablets
Serious and Opportunistic Infections
Fatal and serious infections, including opportunistic infections, have occurred in patients with hematologic malignancies treated with CALQUENCE.
Serious or Grade 3 or higher infections (bacterial, viral, or fungal) occurred in
Hemorrhage
Fatal and serious hemorrhagic events have occurred in patients with hematologic malignancies treated with CALQUENCE. Major hemorrhage (serious or Grade 3 or higher bleeding or any central nervous system bleeding) occurred in
Use of antithrombotic agents concomitantly with CALQUENCE may further increase the risk of hemorrhage. In clinical trials, major hemorrhage occurred in
Consider the benefit-risk of withholding CALQUENCE for 3-7 days pre- and post-surgery depending upon the type of surgery and the risk of bleeding.
Cytopenias
Grade 3 or 4 cytopenias, including neutropenia (
Second Primary Malignancies
Second primary malignancies, including skin cancers and other solid tumors, occurred in
Cardiac Arrhythmias
Serious cardiac arrhythmias have occurred in patients treated with CALQUENCE. Grade 3 atrial fibrillation or flutter occurred in
Hepatotoxicity, Including Drug-Induced Liver Injury
Hepatotoxicity, including severe, life-threatening, and potentially fatal cases of drug-induced liver injury (DILI), has occurred in patients treated with Bruton tyrosine kinase inhibitors, including CALQUENCE.
Evaluate bilirubin and transaminases at baseline and throughout treatment with CALQUENCE. For patients who develop abnormal liver tests after CALQUENCE, monitor more frequently for liver test abnormalities and clinical signs and symptoms of hepatic toxicity. If DILI is suspected, withhold CALQUENCE. Upon confirmation of DILI, discontinue CALQUENCE.
ADVERSE REACTIONS
The most common adverse reactions (≥
*Treatment-emergent decreases (all grades) of hemoglobin (
Dose reductions or discontinuations due to any adverse reaction were reported in
The most common adverse reactions (≥
*Treatment-emergent decreases (all grades) of hemoglobin, platelets, and neutrophils were based on laboratory measurements and adverse reactions.
In patients with previously untreated CLL exposed to CALQUENCE, fatal adverse reactions that occurred in the absence of disease progression and with onset within 30 days of the last study treatment were reported in
Adverse reactions led to CALQUENCE dose reduction in
In patients with relapsed/refractory CLL exposed to CALQUENCE, serious adverse reactions occurred in
Adverse reactions led to CALQUENCE dose reduction in
DRUG INTERACTIONS
Strong CYP3A Inhibitors: Avoid co-administration of CALQUENCE with a strong CYP3A inhibitor. If these inhibitors will be used short-term, interrupt CALQUENCE. After discontinuation of strong CYP3A inhibitor for at least 24 hours, resume previous dosage of CALQUENCE.
Moderate CYP3A Inhibitors: Reduce the dosage of CALQUENCE to 100 mg once daily when co-administered with a moderate CYP3A inhibitor.
Strong CYP3A Inducers: Avoid co-administration of CALQUENCE with a strong CYP3A inducer. If co-administration is unavoidable, increase the dosage of CALQUENCE to 200 mg approximately every 12 hours.
SPECIFIC POPULATIONS
Based on findings in animals, CALQUENCE may cause fetal harm and dystocia when administered to a pregnant woman. There are no available data in pregnant women to inform the drug-associated risk. Advise pregnant women of the potential risk to a fetus.
Pregnancy testing is recommended for females of reproductive potential prior to initiating CALQUENCE therapy. Advise female patients of reproductive potential to use effective contraception during treatment with CALQUENCE and for 1 week following the last dose of CALQUENCE.
It is not known if CALQUENCE is present in human milk. Advise lactating women not to breastfeed while taking CALQUENCE and for 2 weeks after the last dose.
Avoid use of CALQUENCE in patients with severe hepatic impairment (Child-Pugh class C). No dosage adjustment of CALQUENCE is recommended in patients with mild (Child-Pugh class A) or moderate (Child-Pugh class B) hepatic impairment.
Please see full Prescribing Information, including Patient Information.
Notes
Mantle cell lymphoma
MCL is a rare and typically aggressive form of non-Hodgkin lymphoma (NHL), often diagnosed as a late-stage disease, resulting when B-lymphocytes mutate into malignant cells within a region of the lymph node known as the mantle zone.1,2 While MCL patients initially respond to treatment, patients do tend to relapse.3 MCL comprises about 3
ECHO
ECHO is a randomized, double-blind, placebo-controlled, multi-center Phase III trial evaluating the efficacy and safety of CALQUENCE plus bendamustine and rituximab compared to standard of care chemoimmunotherapy (bendamustine and rituximab) in adult patients at or over 65 years of age (n=635) with previously untreated MCL.7 Patients were randomized 1:1 to receive either CALQUENCE or placebo administered orally twice per day, on 28 day treatment cycles, plus bendamustine on days 1 and 2 and rituximab on day 1 of each cycle. After six cycles of induction therapy, all patients continued CALQUENCE or placebo in combination with bendamustine and rituximab, patients receive CALQUENCE or placebo plus maintenance rituximab for two years and then either CALQUENCE or placebo only until disease progression.7
The primary endpoint is PFS assessed by an Independent Review Committee and key secondary endpoints include OS, overall response rate (ORR), duration of response (DoR) and time to response (TTR).7 The trial includes 27 countries across
The ECHO trial enrolled patients from May 2017 to March 2023, continuing through the COVID-19 pandemic. Patients with blood cancer remain at a disproportionately high risk of severe outcomes from COVID-19, including hospitalization and death compared to the general population.8
CALQUENCE
CALQUENCE (acalabrutinib) is a next-generation, selective inhibitor of Bruton’s tyrosine kinase (BTK). CALQUENCE binds covalently to BTK, thereby inhibiting its activity.9 In B-cells, BTK signaling results in activation of pathways necessary for B-cell proliferation, trafficking, chemotaxis and adhesion.
CALQUENCE has been used to treat more than 80,000 patients worldwide and is approved for the treatment of CLL and small lymphocytic lymphoma (SLL) in the US and
As part of an extensive clinical development program, CALQUENCE is currently being evaluated as a single treatment and in combination with standard-of-care chemoimmunotherapy for patients with multiple B-cell blood cancers, including CLL, MCL, diffuse large B-cell lymphoma and follicular lymphoma.
AstraZeneca in hematology
AstraZeneca is pushing the boundaries of science to redefine care in hematology. Our goal is to help transform the lives of patients living with malignant, rare and other related hematologic diseases through innovative medicines and approaches that are shaped by insights from patients, caregivers and physicians.
In addition to our marketed products, we are spearheading the development of novel therapies designed to target underlying drivers of disease across six scientific platforms. Our recent acquisitions of Alexion, with expertise in rare, non-malignant blood disorders, and Gracell Biotechnologies Inc., focused on cell therapies for hematologic malignancies, expand our hematology pipeline and enable us to reach more patients with high unmet needs through the end-to-end development and delivery of novel therapies.
AstraZeneca in oncology
AstraZeneca is leading a revolution in oncology with the ambition to provide cures for cancer in every form, following the science to understand cancer and all its complexities to discover, develop and deliver life-changing medicines to patients.
The Company's focus is on some of the most challenging cancers. It is through persistent innovation that AstraZeneca has built one of the most diverse portfolios and pipelines in the industry, with the potential to catalyze changes in the practice of medicine and transform the patient experience.
AstraZeneca has the vision to redefine cancer care and, one day, eliminate cancer as a cause of death.
AstraZeneca
AstraZeneca is a global, science-led biopharmaceutical company that focuses on the discovery, development, and commercialization of prescription medicines in Oncology, Rare Diseases and BioPharmaceuticals, including Cardiovascular, Renal & Metabolism, and Respiratory & Immunology. Based in
References
- Lymphoma Research Foundation. Mantle Cell Lymphoma. Available at: https://lymphoma.org/aboutlymphoma/nhl/mcl/. Accessed May 2024.
- National Organization for Rare Disorders. Mantle Cell Lymphoma. Available at: https://rarediseases.org/rare-diseases/mantle-cell-lymphoma/. Accessed May 2024.
- Cheah C, Seymour J, Wang ML. Mantle cell lymphoma. J Clin Oncol. 2016;34(11):1256-1269. doi: 10.1200/JCO.2015.63.5904.
- MD Anderson Cancer Center. What to know about mantle cell lymphoma. Available at: https://www.mdanderson.org/cancerwise/what-to-know-about-mantle-cell-lymphoma-symptoms-diagnosis-and-treatment.h00-159385101.html. Accessed May 2024.
- GLOBOCAN. Non-Hodgkin Lymphoma. Available at: https://gco.iarc.who.int/media/globocan/factsheets/cancers/34-non-hodgkin-lymphoma-fact-sheet.pdf. Accessed May 2024.
- Lynch DT, Koya S, Acharya U, et al. Mantle Cell Lymphoma. Available at: https://www.ncbi.nlm.nih.gov/books/NBK536985/. Accessed May 2024.
- ClinicalTrials.gov. A Study of BR Alone Versus in Combination With Acalabrutinib in Subjects With Previously Untreated MCL. Available at: https://clinicaltrials.gov/study/NCT02972840. Accessed May 2024.
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Dube S, et al. Continued Increased Risk of COVID-19 Hospitalisation and Death in Immunocompromised Individuals Despite Receipt of ≥4 Vaccine Doses: Updated 2023 Results from INFORM, a Retrospective Health Database Study in
England . Poster P0409 at ECCMID 2024. - Wu J, Zhang M, Liu D. Acalabrutinib (ACP-196): a selective second-generation BTK inhibitor. J Hematol Oncol. 2016;9(21).
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FAQ
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