Artios Pharma Reports Differentiated Clinical Activity in STELLA Phase 1/2a Study for Lead Program ART0380 at the American Association for Cancer Research (AACR) Annual Meeting 2025

On April 29, 2025 Artios Pharma Limited ("Artios"), a clinical-stage biotech company led by pioneers of DNA damage response ("DDR") drug development, reported encouraging data from its ongoing STELLA Phase 1/2a trial (NCT04657068) in an oral presentation at the American Association for Cancer Research (AACR) (Free AACR Whitepaper) Annual Meeting 2025 in Chicago (Press release, Artios Pharma, APR 29, 2025, View Source [SID1234652301]). The presentation by Principal Investigator Susanna Ulahannan, MD, Associate Professor, Stephenson Cancer Center at the University of Oklahoma and Director, Drug Development, Sarah Cannon Research Institute (SCRI) at OU Health Stephenson Cancer Center, highlighted the Phase 1/2a clinical data from the STELLA trial of Artios’ lead candidate, ART0380, in combination with low-dose irinotecan in advanced or metastatic solid tumors.

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Artios is pursuing a differentiated clinical development path with its lead product candidate, ART0380, which selectively targets a protein kinase called Ataxia telangiectasia and Rad3-related (ATR). ATR plays a key role in the cellular response to replication stress, a process that can occur endogenously or exogenously, for example via chemotherapy. Many cancers exhibit high endogenous replication stress, such as Ataxia-Telangiectasia Mutated (ATM) protein deficiency found in up to 24% of high-unmet need solid tumors. Artios’ innovative approach exploits replication stress to kill cancer cells through triple targeting: selecting cancers with high replication stress, inducing further replication stress with a low dose of irinotecan, and preventing cellular rescue by inhibiting ATR with ART0380.

"Artios is exploiting a new area of DNA damage response called replication stress with ART0380, and the data from our Phase 1/2a study shows robust clinical activity and good tolerability in a large, identifiable patient population," said Ian Smith, Chief Medical Officer of Artios. "These are unprecedented data for the ATR inhibitor class, and they validate our unique approach of combining ART0380 with a low dose of irinotecan to amplify replication stress. We are encouraged by the incidence and durability of the responses in ATM-deficient cancers, including those of particularly high unmet need, such as pancreatic and colorectal cancer."

Summary of Key Clinical Results:

Artios completed patient enrollment in the dose escalation and initial expansion. As of the data cut-off in February 2025, 87 patients with advanced/metastatic solid tumors who had no satisfactory alternative therapy available to them were treated with ART0380 in combination with low-dose irinotecan, of which 58 patients were treated at the RP2D (recommended Phase 2 dose). These patients’ tumors had varying levels of ATM protein.

The combination treatment at the RP2D showed a meaningful duration of response and prolonged clinical benefit across multiple histologies
37% confirmed overall response rate (cORR) in patients with ATM-negative1 and ATM-low1 cancers (14/38), according to RECIST
50% cORR in ATM-negative cancers (10/20) with a median duration of response (mDoR) of 5.7 months (several responses ongoing)
22% cORR in ATM-low cancers (4/18) with the median duration of response not reached
Responses were observed in 8 different solid tumor types
The combination had a favorable safety profile, was well tolerated, and was shown to be suitable for long-term dosing

The 21-day combination treatment regimen at the RP2D includes administering ART0380 (200mg) on days 1 – 3 and 8 – 10, and irinotecan (60mg/m²) on days 1 and 8.

"The first results from the ongoing STELLA clinical trial are compelling and demonstrate the potential for ART0380-irinotecan combination treatment in ATM biomarker-driven tumors. I am encouraged by the clinical activity and durable responses across multiple cancer indications in heavily pretreated patients, especially considering the complete responses observed in metastatic pancreatic cancer," added Susanna Ulahannan, MD, Director, Drug Development, SCRI at OU Health Stephenson Cancer Center, USA.

The Phase 1/2a trial for ART0380 is conducted with SCRI’s contract research organization, SCRI Development Innovations. Based on the meaningful clinical responses observed, Artios is initiating expansion studies in earlier-line settings, including colorectal and pancreatic cancers, to enable pivotal development of ART0380.

About ART0380

ART0380 is an orally administered, selective small molecule inhibitor of ataxia telangiectasia and Rad3-related protein (ATR) with first- and best-in-class potential. ATR is activated as the cell’s response to replication stress frequently occurring in rapidly multiplying cells. Inhibiting ATR with ART0380 removes a cancer cell’s ability to repair damaged DNA, leading to the killing of cancerous cells. ART0380 is designed to maximize the therapeutic window and is optimized for combination with DNA damaging therapy to improve patient outcomes. It is currently being evaluated in multiple clinical settings to identify its potential in high replication stress tumors. ART0380 was originally in-licensed by Artios from The University of Texas MD Anderson Cancer Center and ShangPharma Innovation in 2019. The molecule was discovered as part of a collaboration between ShangPharma and MD Anderson’s Therapeutics Discovery Division.

Quanterix and Akoya Biosciences Announce Amended Merger Agreement

On April 29, 2025 Quanterix Corporation (NASDAQ: QTRX), a company fueling scientific discovery through ultra-sensitive biomarker detection, and Akoya Biosciences (NASDAQ: AKYA), The Spatial Biology Company, reported an amendment to the terms of their previously announced merger agreement (Press release, Akoya Biosciences, APR 29, 2025, View Source [SID1234652300]).

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Under the amended terms, Quanterix will issue approximately 7.76 million shares of its common stock and pay $20 million in cash to Akoya shareholders. Each Akoya share will receive $0.38 per share in cash and 0.1461 shares of Quanterix common stock.

With the amended exchange ratio, Quanterix will issue over 9 million fewer shares than under the original deal terms. Quanterix shareholders will own approximately 84% of the combined company and Akoya shareholders will own approximately 16%.

Masoud Toloue, PhD, Chief Executive Officer of Quanterix, said, "The strategic merits of the transaction remain strong even as the market has been focused on academic funding and tariff concerns. In light of recent volatility, we re-engaged with Akoya to revise the terms of the agreement. The combined company will provide a significant value creation opportunity for shareholders."

Brian McKelligon, Chief Executive Officer of Akoya, said, "We remain excited to combine with Quanterix and believe this partnership offers compelling value for Akoya shareholders. We look forward to closing the transaction and leveraging our collective scale to drive synergies across our organizations and customers, expediting our path to profitability."

Additional Details about the Transaction

The revised transaction terms and amended merger agreement have been approved by the Quanterix Board and the Akoya Board, respectively.

Shareholders of Akoya who hold more than 50% of Akoya’s common stock have agreed to vote in favor of the merger on the amended terms.

As a result of the amended merger agreement, Quanterix will no longer hold its previously announced special meeting of shareholders.

The transaction is expected to close during the second quarter of 2025, subject to the approval of Akoya shareholders and satisfaction of other customary closing conditions.

An updated investor presentation is being furnished by Quanterix to the Securities and Exchange Commission and also is available at View Source, highlighting the benefits of the combination.

Advisors

Goldman Sachs & Co. LLC is serving as financial advisor to Quanterix with Covington & Burling LLP and Sidley Austin LLP serving as legal counsel. Perella Weinberg Partners LP is serving as financial advisor to Akoya and DLA Piper LLP is serving as legal counsel.

Immutep Quarterly Activities Report & Appendix 4C Q1 FY25

On April 29, 2025 Immutep Limited(ASX: IMM; NASDAQ: IMMP) ("Immutep" or "the Company"), a clinical-stage biotechnology company developing novel LAG-3 immunotherapies for cancer and autoimmune disease, reported an update on its activities for the quarter ended 31 December 2024 (Q2 FY25) (Press release, Immutep, APR 29, 2025, View Source;v=7bc42bd11d853ed5e8c28f2ffcd6a069ee5cd6b4 [SID1234652261]).

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EFTI DEVELOPMENT PROGRAM FOR CANCERTACTI-004 –Start of Phase III Trial in 1L NSCLC

In December 2024, Immutep initiated its pivotal TACTI-004 Phase III clinical trial of eftilagimod alfa ("efti") for the treatment of first-line metastatic non-small cell lung cancer (1L NSCLC). The receipt of regulatory approval from the Australian Therapeutic Goods Administration means that Immutep has transitioned into a Phase III company; a significant milestone for the Company.

Immutep has successfully completed regulatory submissions in the vast majority of the more than 25 countries that will be part of the global TACTI-004 trial. Additional approvals from multiple countries are expected in the weeks and months ahead. The Company expects to enrol the first patient in Q1 of CY2025.

TACTI-003 (KEYNOTE-C34) –Phase IIb Trial in 1L HNSCC

In December 2024, Immutep reported further positive results from Cohort B of the TACTI-003 (KEYNOTE-C34) Phase IIb trial. Cohort B is evaluating efti in combination with MSD’s anti-PD-1 therapy KEYTRUDA (pembrolizumab) as first-line treatment of recurrentor metastatic head and neck squamous cell carcinoma patients (1L HNSCC) with PD-L1 negative tumours (CPS <1) who typically do not respond well to anti-PD-1 therapy alone. The results were presented by Martin Forster, M.D., Ph.D., at the ESMO (Free ESMO Whitepaper) Immuno-Oncology (IO) Annual Congress 2024.

Adding to the high response rates and favourable safety data previously reported in July 2024, the new data showed that, encouragingly, median overall survival (OS) has not yet been reached and the 12-month OS rate is 67%. A promising progression-free survival (PFS) of 5.8 months, interim median duration of response (DOR) of 9.3 months, 35.5% objective response rate (ORR) and 58.1% disease control rate (DCR) were also reported. The complete response rate increased to 12.9% and 16.1%, according to RECIST 1.1and iRECIST, respectively. This data compares favourably to historical results from anti-PD-1 therapy alone in 1L HNSCC patients with CPS <1. In addition, efti in combination with KEYTRUDA continues to be well-tolerated with no new safety signals. Immutepwill continue to follow the maturing data from TACTI-003 and engage with regulatory authorities regarding potential paths forward.

AIPAC-003 –Phase II/III Trial in Metastatic Breast Cancer

In October 2024, Immutep completed patient enrolment in the Phase II portion of the AIPAC-003 trial. The randomised Phase II portion of the trial enrolled 65 metastatic hormone receptor positive (HR+), HER2-negative/low or triple-negative breast cancer patients who exhausted endocrine therapy including cyclin-dependent kinase 4/6 (CDK4/6) inhibitors. Patients across 22 clinical sites in Europe and the United States have been randomised 1:1 to receive either 30mg or 90mg dosing of efti in combination with paclitaxel to determine the optimal biological dose consistent with the FDA’s Project Optimus initiative and prior regulatory interaction with FDA. Data cleaning and analysis is ongoing.

INSIGHT-003 –Phase I Trial in Non-Squamous 1L NSCLC

In November 2024, first overall survival results were reported from the investigator-initiated INSIGHT-003 trial evaluating efti in combination with KEYTRUDA (pembrolizumab) and doublet chemotherapy as first-line treatment for patients with advanced or metastatic non-squamous non-small cell lung cancer (1L NSCLC).

Mature data from patients with a minimum follow-up of 22 months (N=21) demonstrated results significantly exceeding historical controls and expectations. Data included a median OS of 32.9 months, median PFS of 12.7 months, and a 24-month OS rate of 81.0%. Data from all evaluable patients to date (N=40) showed a marked improvement in ORR compared to historical controls. Safety remains favourablewith no new safety signals reported.

Subsequent to quarter end, patient enrolment was completed for INSIGHT-003 in January 2025. The trial reached its enrolment target of approximately 50 evaluable patients across multiple clinical sites in Germany led by the Frankfurt Institute of Clinical Cancer Research IKF. Additional data updates are expected in 2025 and beyond.

EFTISARC-NEO –Phase II Trial in Soft Tissue Sarcoma

Also in November, new data from the EFTISARC-NEO Phase II investigator-initiated trial of efti in combination with radiotherapy plus KEYTRUDA (pembrolizumab) for patients with soft tissue sarcoma (STS) were presented at the Connective Tissue Oncology Society (CTOS) 2024 Annual Meeting.

Based on preliminary analysis, the triple combination therapy demonstrates significant efficacy in the neoadjuvant setting for resectable STS. The combination achieved a greater than three-fold increase in tumour hyalinization/fibrosis (median 50%) at the time of surgery as compared to a historical median of 15% from radiotherapy alone. In addition to being the primary endpoint of the EFTISARC-NEO study, the tumour hyalinization/fibrosis rate has also been identified as a predictor of overall survival for STS patients in the neoadjuvant setting.

The EFTISARC-NEO trial, with a data cut-off of 20 October 2024, also showed 71.4% of patients achieved a pathologic response defined as ≥35% of hyalinization/fibrosis and 9.5% of patients achieved a complete pathologic response. Additionally, the triple combination therapy is safe with no grade ≥3 toxicities related to efti and KEYTRUDA.

IMP761 DEVELOPMENT PROGRAM FOR AUTOIMMUNE DISEASE

IMP761 is a first-in-class agonist LAG-3 antibody designed to restore balance to the immune system by enhancing the "brake" function of LAG-3 to silence dysregulated self-antigen-specific memory T cells that cause many autoimmune diseases.

In December 2024, Immutep reported favourable initial safety data from the placebo-controlled, double-blind first-in-human Phase I study evaluating IMP761. There have been no treatment related adverse events in the first three of five single ascending dosecohorts in healthy participants. Additional safety data and assessment of pharmacokinetic/pharmacodynamic (PK/PD) relationships to follow in the first half of CY2025.

PARTNER ACTIVITY

Collaboration with Monash University

In December 2024, new findings that resolve how human lymphocyte activation gene 3 (LAG-3) binds to its main ligand MHC Class II (MHC-II), also known as HLA Class II (HLA-II) in humans, were published in Science Immunology. The work by Monash University and Immutep, is also the first to show the crystal structure of a human LAG-3/MHC-II complex and provides a better foundation for development of blocking LAG-3 therapeutics, including Immutep’s anti-LAG-3 small molecule program.

INTELLECTUAL PROPERTY

During the quarter, Immutep was granted threenew patents for eftiandIMP761 in various territories. In particular, Immutep was granted a new patent for efti in combination with a PD-1 pathway inhibitor for the treatment of infection from the Brazilian Patent Officeand a new patent for the same combination for the treatment of cancer or infection by the Japan Patent Office. In addition, a new patent was granted for IMP761 by the Malaysian Patent Office.

CORPORATE & FINANCIAL SUMMARY

Board & Senior Management Changes

Independent Non-Executive Director, Anne Anderson, tendered her resignation from the role, effective from 4 October 2024. The Board thanked her for her contribution to Immutep and wished her every success with her next endeavours.

As Immutep’s efti program has advanced into Phase III development, the Company has continued to grow and evolve its team. As part of this, Christian Mueller, who has been with Immutep for over eight years, most recently as SVP Regulatory and Strategy has been promoted to Chief Development Officer. In addition, Dr Florian Vogl, Immutep’s Chief Medical Officer will depart the Company in April 2025. The Company’s current Medical Affairs Advisor, who has been working in different roles closely with Immutep for over nine years, Dr Stephan Winckels, has been appointed acting CMO and taken over all related responsibilities.

Cash Flow Summary

During the quarter, Immutep continued to advance its clinical trial programs for efti and for IMP761. The Company is well funded with a strong cash, cash equivalent and term deposit balance as at 31 December 2024 of approximately A$159.26 million in total, which gives Immutepan expected cash reach to the end of CY2026. The A$159.26 million total balance consists of: 1) a cash and cash equivalent balance of $73.89 million and 2) bank term deposits totalling A$85.37 million, which have been recognised as short-term investments due to having maturities of more than 3 months and less than 12 months.

In Q2 FY25, cash receipts from customers were $8k. The net cash used in G&A activities in the quarter was $566k, compared to $961k in Q1 FY25. Payments to Related Parties (detailed in item 6.1 of the Appendix 4C) comprises Non-Executive Directors’ fees andExecutive Directors’ remuneration of $344k.

The net cash used in R&D activities during the quarter was $16.2 million, compared to $9.5 million to Q1 FY25. The increase is mainly due to the increased level of clinical trial activities especially the commencement of the phase III TACTI-004 clinical trial. Paymentsfor staff costs were$2.5 million in the quarter compared to $2.8 million in Q1 FY25.

Total net cash outflows used in operating activities in the quarter were $19.0 million compared to $8.6 million in Q1 FY25.

Total cash flow used in investing activities for the quarter was $30.4 million, mainly due to the net increase of $30.0 million in short-term investments. The short-term investments are comprised of term deposits with maturities of greater than 3 months and less than 12 months. During the quarter, the company invested $35.3 million inshort-term investments and transferred back $5.3 million from short-term investments that had matured to cash at bank, resulting in anet increase in short-term investments of $30.0 million.

Update on CAPItello-280 Phase III trial of Truqap in metastatic castration-resistant prostate cancer

On April 29, 2025 AstraZeneca reported that it is discontinuing the CAPItello-280 Phase III trial evaluating the efficacy and safety of Truqap (capivasertib) in combination with docetaxel and androgen-deprivation therapy (ADT) compared to docetaxel and ADT with placebo in patients with metastatic castration-resistant prostate cancer (mCRPC) (Press release, AstraZeneca, APR 29, 2025, View Source [SID1234652260]).

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This decision is based on the recommendation of the Independent Data Monitoring Committee (IDMC) following their review of data from a pre-specified interim analysis, which concluded that the Truqap combination was unlikely to meet the dual primary endpoints of radiographic progression-free survival (rPFS) and overall survival (OS) versus the comparator arm upon trial completion. The safety profile for Truqap was consistent with previous trials.

The Company will work with investigators to ensure the necessary follow up with patients. Data from the trial will inform ongoing research.

Notes

Prostate cancer
Prostate cancer is the second most prevalent cancer in men and the fifth leading cause of male cancer death globally, with an incidence of more than 1.4 million and over 397,000 deaths in 2022.1

Metastatic prostate cancer is associated with a significant mortality rate, with only one third of patients surviving five years after diagnosis.2 Development of prostate cancer is often driven by male sex hormones called androgens, including testosterone.3

Metastatic castration-resistant prostate cancer
Approximately 10-20% of men with advanced prostate cancer will develop castration-resistant prostate cancer within five years.4 In patients with mCRPC, their prostate cancer grows and spreads to other parts of the body despite the use of androgen-deprivation therapy to block the action of male sex hormones.3 At least 84% of these men will have metastases at the time of CRPC diagnosis and, of those patients with no metastases at CRPC diagnosis, 33% are likely to develop metastases within two years.4 Approximately half of patients with mCRPC may receive only one line of active treatment, and those that go on to receive further treatment often have diminishing benefit of subsequent therapies.5-6

Despite the advances in mCRPC treatment with taxane and new hormonal agent treatments, there is high unmet need in this population.4,7,8

CAPItello-280
CAPItello-280 is a Phase III, double-blind, randomised trial evaluating the efficacy and safety of Truqap in combination with docetaxel and ADT compared to docetaxel and ADT in combination with placebo in patients with mCRPC.

The global trial enrolled 1,033 adult patients with histologically confirmed prostate adenocarcinoma with evidence of mCRPC with progression of disease despite ADT. The dual primary endpoints of the CAPItello-280 trial are rPFS as assessed by investigator and OS in the overall trial population. Key secondary endpoints include OS and rPFS as assessed by investigator in patients with mCRPC and PTEN-deficient tumours, OS and rPFS as assessed by investigator in patients with mCRPC and PTEN-proficient tumours, time to pain progression (TTPP) in the overall trial population and time to first symptomatic skeletal-related event (SSRE) in the overall trial population.

Truqap
Truqap is a first-in-class, potent, adenosine triphosphate (ATP)-competitive inhibitor of all three AKT isoforms (AKT1/2/3). Truqap 400mg is administered twice daily according to an intermittent dosing schedule of four days on and three days off. This was chosen in early phase trials based on tolerability and the degree of target inhibition.

Truqap in combination with Faslodex (fulvestrant) is approved in the US, EU, Japan, China and several other countries for the treatment of adult patients with HR-positive (or estrogen receptor-positive), HER2-negative locally advanced or metastatic breast cancer with one or more biomarker alterations (PIK3CA, AKT1 or PTEN) following recurrence or progression on or after an endocrine-based regimen based on the results from the CAPItello-291 trial. Truqap is also approved in Australia for the treatment of adult patients with HR-positive, HER2-negative locally advanced or metastatic breast cancer following recurrence or progression on or after an endocrine based regimen based on these trial results.

Truqap is being evaluated in ongoing Phase III trials for the treatment of breast and prostate cancers.

Truqap was discovered by AstraZeneca subsequent to a collaboration with Astex Therapeutics (and its collaboration with the Institute of Cancer Research and Cancer Research Technology Limited).

Fixed-duration Calquence-based regimens recommended for approval in the EU by CHMP for 1st-line chronic lymphocytic leukaemia

On April 29, 2025 AstraZeneca reported that a fixed-duration regimen of Calquence (acalabrutinib) in combination with venetoclax, with or without obinutuzumab, has been recommended for approval in the European Union (EU) for the treatment of adult patients with previously untreated chronic lymphocytic leukaemia (CLL) (Press release, AstraZeneca, APR 29, 2025, View Source [SID1234652259]).

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The Committee for Medicinal Products for Human Use (CHMP) of the European Medicines Agency (EMA) based its positive opinion on results from the AMPLIFY Phase III trial, which were presented at the American Society of Haematology (ASH) (Free ASH Whitepaper) 2024 Annual Meeting and published in The New England Journal of Medicine.1

Results showed Calquence plus venetoclax reduced the risk of disease progression or death by 35% compared to standard-of-care chemoimmunotherapy (investigator’s choice of fludarabine-cyclophosphamide-rituximab or bendamustine-rituximab; hazard ratio [HR] 0.65; 95% confidence interval [CI] 0.49-0.87; p=0.0038). Calquence plus venetoclax with obinutuzumab demonstrated a 58% reduction in the risk of disease progression or death compared to standard-of-care chemoimmunotherapy (HR 0.42; 95% CI 0.30-0.59; p<0.0001).2

At three years, 77% of patients treated with Calquence plus venetoclax and 83% of patients treated with Calquence plus venetoclax and obinutuzumab were progression free, versus 67% of patients treated with chemoimmunotherapy.1 Median progression-free survival (PFS) was not reached for either experimental arm versus 47.6 months for chemoimmunotherapy.1

Wojciech Jurczak, MD, Maria Sklodowska-Curie National Institute of Oncology, Kraków, Poland and investigator for the trial, said: "Chronic lymphocytic leukaemia is an incurable cancer which means patients live with the disease and stay on treatment for many years, which can have long-term effects. The fixed-duration Calquence regimens will allow patients to take breaks from their treatment, reducing the risk of long-term adverse events and drug resistance."

Susan Galbraith, Executive Vice President, Oncology Haematology R&D, AstraZeneca, said: "With this recommendation, Calquence plus venetoclax can potentially be the only all-oral second-generation BTK inhibitor option approved in Europe for patients with previously untreated chronic lymphocytic leukaemia. Calquence has demonstrated efficacy and safety in fixed-duration and treat-to-progression regimens providing patients and their doctors more treatment flexibility."

CLL is the most common type of leukaemia in adults, with an estimated 27,000 patients diagnosed in the UK, France, Germany, Spain and Italy in 2024.3

The safety and tolerability of Calquence was consistent with its known safety profile, and no new safety signals were identified.

Regulatory applications for Calquence plus venetoclax, with or without obinutuzumab, in this setting are currently under review in several countries based on the AMPLIFY results.

Notes

Chronic lymphocytic leukaemia (CLL)
CLL is the most prevalent type of leukaemia in adults, with over 117,000 new cases globally in 2021.4 Although some people with CLL may not experience any symptoms at diagnosis, others may experience symptoms, such as weakness, fatigue, weight loss, chills, fever, night sweats, swollen lymph nodes and abdominal pain.5 In CLL, there is an accumulation of abnormal lymphocytes within the blood, bone marrow and lymph nodes. As the number of abnormal cells increases, there is less room within the marrow for the production of normal white blood cells, red blood cells and platelets.6 This could result in infection, anaemia and bleeding. B-cell receptor signalling through BTK is one of the essential growth pathways for CLL.

AMPLIFY
AMPLIFY is a randomised, global, multi-centre, open-label Phase III trial evaluating the efficacy and safety of Calquence in combination with venetoclax, with or without obinutuzumab, compared to investigator’s choice of chemoimmunotherapy (fludarabine-cyclophosphamide-rituximab or bendamustine-rituximab) in adult patients with previously untreated CLL without del(17p) or TP53 mutation.7 Patients were randomised 1:1:1 to receive either Calquence plus venetoclax, Calquence plus venetoclax with obinutuzumab for a fixed duration or standard-of-care chemoimmunotherapy.7 Both the Calquence containing arms were administered for a fixed duration of 14 cycles (each 28 days), and the standard-of-care chemoimmunotherapy was for 6 cycles.7

The primary endpoint is PFS in the Calquence and venetoclax arm as assessed by an Independent Review Committee and PFS in the Calquence plus venetoclax with obinutuzumab is a key secondary endpoint.7 Other key secondary endpoints include OS and undetectable measurable residual disease.7 The trial includes 27 countries across North and South America, Europe, Asia and Oceania.7

The AMPLIFY trial enrolled patients from 2019 to 2021, continuing through the COVID-19 pandemic.7 Patients with blood cancer remain at a disproportionately high risk of severe outcomes from COVID-19, including hospitalisation and death compared to the general population.8

Calquence
Calquence (acalabrutinib) is a second-generation, selective inhibitor of Bruton’s tyrosine kinase (BTK). Calquence binds covalently to BTK, thereby inhibiting its activity.9 In B-cells, BTK signalling results in activation of pathways necessary for B-cell proliferation, trafficking, chemotaxis and adhesion.

Calquence is approved for the treatment of chronic lymphocytic leukaemia (CLL) and small lymphocytic lymphoma (SLL) in the US, Japan and China, approved for CLL in the EU and many other countries worldwide. Calquence is also approved for the treatment of adult patients with previously untreated MCL in the US and other countries. It is also approved for the treatment of adult patients with MCL who have received at least one prior therapy in China and several other countries. Calquence is not currently approved for the treatment of MCL in Japan.

As part of an extensive clinical development programme, 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 and diffuse large B-cell lymphoma.