Genmab and Seagen Announce That TIVDAK® (tisotumab vedotin-tftv) Met its Primary Endpoint of Improved Overall Survival in Patients with Recurrent or Metastatic Cervical Cancer Compared to Chemotherapy

On September 4, 2023 Genmab A/S (Nasdaq: GMAB) and Seagen Inc. (Nasdaq: SGEN) reported that the Phase 3 innovaTV 301 global trial in recurrent or metastatic cervical cancer patients with disease progression on or after front-line therapy who received TIVDAK (tisotumab vedotin-tftv), compared with chemotherapy alone, met its primary endpoint of overall survival (OS) (Press release, Genmab, SEP 4, 2023, View Source [SID1234634862]). An Independent Data Monitoring Committee determined that OS crossed the pre-specified efficacy boundary at interim analysis. The key secondary endpoints of investigator-assessed progression-free survival and objective response rate also demonstrated statistical significance. The safety profile of TIVDAK in innovaTV 301 is consistent with the known safety profile of TIVDAK as presented in the U.S. prescribing information, and no new safety signals were observed.

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The results of innovaTV 301/ENGOT cx-12/GOG 3057, a global, randomized, open-label Phase 3 trial, add to the previous results of innovaTV 204, which served as the basis for the accelerated approval of TIVDAK in the United States. Subject to discussions with regulatory authorities, the results from innovaTV 301 are intended to serve as the pivotal confirmatory trial for the U.S. accelerated approval and support global regulatory applications. The innovaTV 301 China extension study has been initiated and continues to enroll patients, in collaboration with Zai Lab Limited.

"TIVDAK is the only U.S. Food and Drug Administration-approved therapy in second-line recurrent or metastatic cervical cancer regardless of biomarker status, tumor histology and prior therapy," said Roger Dansey, M.D., President of Research and Development and Chief Medical Officer at Seagen. "Demonstrating a survival benefit with the results of innovaTV 301 is a critical milestone in our efforts to ensure more adults living with advanced cervical cancer have an approved treatment option."

"With limited options for advanced cervical cancer patients who have progressed after front-line therapy, there is a need for therapeutic options with new mechanisms of action, particularly those with a demonstrated survival benefit," said Jan van de Winkel, Ph.D., Chief Executive Officer, Genmab. "These results provide hope for patients with recurrent or metastatic cervical cancer."

Results of the Phase 3 innovaTV 301 clinical trial will be submitted for presentation at an upcoming medical congress and discussed with regulatory authorities.

About Cervical Cancer
Cervical cancer remains a disease with high unmet need despite advances in effective vaccination and screening practices to prevent and diagnose pre-/early-stage cancers for curative treatment. Recurrent and/or metastatic cervical cancer is a particularly devastating and mostly incurable disease; up to 16% of adults are diagnosed with metastatic disease at diagnosisi,ii and, for adults diagnosed at earlier stages who receive treatment, up to 61% will experience disease recurrence and progress to metastatic cervical cancer.iii It is estimated that in 2023, more than 13,960 new cases of invasive cervical cancer will be diagnosed in the U.S. and 4,310 adults will die from the disease.iv

About the innovaTV 301 Trial
The innovaTV 301 trial (NCT04697628) is a global, randomized, open-label Phase 3 trial evaluating TIVDAK (tisotumab vedotin-tftv) versus investigator’s choice of chemotherapy alone (topotecan, vinorelbine, gemcitabine, irinotecan or pemetrexed) in 502 patients with recurrent or metastatic cervical cancer who received no more than two prior systemic regimens in the recurrent or metastatic setting.

Patients with recurrent or metastatic cervical cancer with squamous cell, adenocarcinoma or adenosquamous histology, and disease progression during or after treatment with a standard of care systemic chemotherapy doublet or platinum-based therapy (if eligible) are included. The main efficacy outcome measure is overall survival. The main secondary outcomes are progression-free survival, objective response rate, time to response and duration of response, as assessed by the investigator, as well as safety and quality of life outcomes.

The study was conducted by Seagen in collaboration with Genmab, European Network of Gynaecological Oncological Trial Groups (ENGOT, study number ENGOT cx-12) and the Gynecologic Oncology Group (GOG) Foundation (study number GOG 3057). For more information about the Phase 3 innovaTV 301 clinical trial and other clinical trials with tisotumab vedotin, please visit www.clinicaltrials.gov.

About TIVDAK (tisotumab vedotin)
TIVDAK (tisotumab vedotin) is an antibody-drug conjugate (ADC) composed of Genmab’s human monoclonal antibody directed to tissue factor (TF) and Seagen’s ADC technology that utilizes a protease-cleavable linker that covalently attaches the microtubule-disrupting agent monomethyl auristatin E (MMAE) to the antibody. Determination of TF expression is not required. Nonclinical data suggest that the anticancer activity of TIVDAK is due to the binding of the ADC to TF-expressing cancer cells, followed by internalization of the ADC-TF complex, and release of MMAE via proteolytic cleavage. MMAE disrupts the microtubule network of actively dividing cells, leading to cell cycle arrest and apoptotic cell death. In vitro, TIVDAK also mediates antibody-dependent cellular phagocytosis and antibody-dependent cellular cytotoxicity.

In September 2021, the U.S. Food and Drug Administration granted accelerated approval for TIVDAK in adult patients with recurrent or metastatic cervical cancer with disease progression on or after chemotherapy. TIVDAK is the first and only approved ADC for the treatment of these patients with recurrent or metastatic cervical cancer with disease progression on or after chemotherapy. The Phase 3 innovaTV 301 clinical trial, an open-label, randomized, global trial, is intended as the confirmatory trial for use in verifying and describing the clinical benefit and for global regulatory applications.

Indication
TIVDAK is indicated in the U.S. for the treatment of adult patients with recurrent or metastatic cervical cancer with disease progression on or after chemotherapy.

This indication is approved under accelerated approval based on tumor response rate and durability of response. Continued approval for this indication may be contingent upon verification and description of clinical benefit in confirmatory trials.

Important Safety Information

BOXED WARNING: OCULAR TOXICITY

TIVDAK caused changes in the corneal epithelium and conjunctiva resulting in changes in vision, including severe vision loss, and corneal ulceration. Conduct an ophthalmic exam at baseline, prior to each dose, and as clinically indicated. Adhere to premedication and required eye care before, during, and after infusion. Withhold TIVDAK until improvement and resume, reduce the dose, or permanently discontinue, based on severity.

WARNINGS AND PRECAUTIONS

Ocular adverse reactions occurred in 60% of patients with cervical cancer treated with TIVDAK across clinical trials. The most common were conjunctival adverse reactions (40%), dry eye (29%), corneal adverse reactions (21%), and blepharitis (8%). Grade 3 ocular adverse reactions occurred in 3.8% of patients, including severe ulcerative keratitis in 3.2% of patients. One patient experienced ulcerative keratitis with perforation requiring corneal transplantation. Cases of symblepharon were reported in patients with other tumor types treated with TIVDAK at the recommended dose.

In innovaTV 204, 4% of patients experienced visual acuity changes to 20/50 or worse including 1% of patients who experienced a visual acuity change to 20/200. Of the patients who experienced decreased visual acuity to 20/50 or worse, 75% resolved, including the patient who experienced decreased visual acuity to 20/200.

Refer patients to an eye care provider for an ophthalmic exam, including visual acuity and slit lamp exam, at baseline, prior to each dose, and as clinically indicated. Adhere to premedication and required eye care to reduce the risk of ocular adverse reactions. Promptly refer patients to an eye care provider for any new or worsening ocular signs and symptoms. Withhold dose, reduce the dose, or permanently discontinue TIVDAK based on the severity of the adverse reaction.

Peripheral Neuropathy (PN) occurred in 42% of cervical cancer patients treated with TIVDAK across clinical trials; 8% of patients experienced Grade 3 PN. PN adverse reactions included peripheral neuropathy (20%), peripheral sensory neuropathy (11%), peripheral sensorimotor neuropathy (5%), motor neuropathy (3%), muscular weakness (3%), and demyelinating peripheral polyneuropathy (1%). One patient with another tumor type treated with TIVDAK at the recommended dose developed Guillain- Barre syndrome.

Hemorrhage occurred in 62% of cervical cancer patients treated with TIVDAK across clinical trials. The most common all grade hemorrhage adverse reactions were epistaxis (44%), hematuria (10%), and vaginal hemorrhage (10%). Grade 3 hemorrhage occurred in 5% of patients.

Monitor patients for signs and symptoms of hemorrhage. For patients experiencing pulmonary or central nervous system (CNS) hemorrhage, permanently discontinue TIVDAK. For Grade ≥2 hemorrhage in any other location, withhold until bleeding has resolved, blood hemoglobin is stable, there is no bleeding diathesis that could increase the risk of continuing therapy, and there is no anatomical or pathologic condition that can increase the risk of hemorrhage recurrence. After resolution, either resume treatment or permanently discontinue TIVDAK.

Pneumonitis that is severe, life-threatening, or fatal can occur in patients treated with antibody-drug conjugates containing vedotin, including TIVDAK. Among patients with cervical cancer treated with TIVDAK across clinical trials, 2 patients (1.3%) experienced pneumonitis, including 1 patient who had a fatal outcome.

Monitor patients for pulmonary symptoms of pneumonitis. Symptoms may include hypoxia, cough, dyspnea or interstitial infiltrates on radiologic exams. Infectious, neoplastic, and other causes for symptoms should be excluded through appropriate investigations. Withhold TIVDAK for patients who develop persistent or recurrent Grade 2 pneumonitis and consider dose reduction. Permanently discontinue TIVDAK in all patients with Grade 3 or 4 pneumonitis.

Severe cutaneous adverse reactions, including events of fatal or life-threatening Stevens-Johnson syndrome (SJS), can occur in patients treated with TIVDAK.

Monitor patients for signs or symptoms of severe cutaneous adverse reactions, which include target lesions, worsening skin reactions, blistering or peeling of the skin, painful sores in mouth, nose, throat, or genital area, fever or flu-like symptoms, and swollen lymph nodes. If signs or symptoms of severe cutaneous adverse reactions occur, withhold TIVDAK until the etiology of the reaction has been determined. Early consultation with a specialist is recommended to ensure greater diagnostic accuracy and appropriate management. Permanently discontinue TIVDAK for confirmed Grade 3 or 4 severe cutaneous adverse reactions, including SJS.

Embryo-fetal toxicity: TIVDAK can cause fetal harm when administered to a pregnant woman. Advise patients of the potential risk to a fetus. Advise females of reproductive potential to use effective contraception during treatment with TIVDAK and for 2 months after the last dose. Advise male patients with female partners of reproductive potential to use effective contraception during treatment with TIVDAK and for 4 months after the last dose.

Adverse Reactions
Serious adverse reactions occurred in 43% of patients; the most common (≥3%) were ileus (6%), hemorrhage (5%), pneumonia (4%), PN, sepsis, constipation, and pyrexia (each 3%). Fatal adverse reactions occurred in 4% of patients who received TIVDAK, including septic shock, pneumonitis, sudden death, and multisystem organ failure (each 1%).

Adverse reactions leading to permanent discontinuation occurred in 13% of patients receiving TIVDAK; the most common (≥3%) were PN (5%) and corneal adverse reactions (4%). Adverse reactions leading to dose interruption occurred in 47% of patients; the most common (≥3%) were PN (8%), conjunctival adverse reactions (4%), and hemorrhage (4%). Adverse reactions leading to dose reduction occurred in 23% of patients; the most common (≥3%) were conjunctival adverse reactions (9%) and corneal adverse reactions (8%).

The most common (≥25%) adverse reactions, including laboratory abnormalities, were hemoglobin decreased (52%), fatigue (50%), lymphocytes decreased (42%), nausea (41%), PN (39%), alopecia (39%), epistaxis (39%), conjunctival adverse reactions (37%), hemorrhage (32%), leukocytes decreased (30%), creatinine increased (29%), dry eye (29%), prothrombin international normalized ratio increased (26%), activated partial thromboplastin time prolonged (26%), diarrhea (25%), and rash (25%).

Drug Interactions
Strong CYP3A4 inhibitors: Concomitant use with strong CYP3A4 inhibitors may increase unconjugated monomethyl auristatin E (MMAE) exposure, which may increase the risk of TIVDAK adverse reactions. Closely monitor patients for TIVDAK adverse reactions.

Use in Specific Populations

Moderate or severe hepatic impairment: MMAE exposure and adverse reactions are increased. Avoid use.

Lactation: Advise lactating women not to breastfeed during TIVDAK treatment and for at least 3 weeks after the last dose.

Please see full prescribing information, including BOXED WARNING for TIVDAK here.

ONCOS-102 mesothelioma study published in Journal for ImmunoTherapy of Cancer

On September 4, 2023 Circio Holding ASA (OSE: CRNA), a biotechnology company developing novel circular RNA and immunotherapy medicines, reported that the completed phase 1/2 trial of ONCOS-102 in combination with Standard of Care (SoC) chemotherapy in malignant pleural mesothelioma (MPM) has been published in the Journal for ImmunoTherapy of Cancer (JITC), the prestigious immunology journal of the Society for Immunotherapy of Cancer (SITC) (Free SITC Whitepaper) (Press release, Circio, SEP 4, 2023, View Source [SID1234634861]).

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The study was a randomized phase 1/2 trial adding ONCOS-102 to SoC chemotherapy (pemetrexed/cisplatin) in first and later line MPM to assess safety, immune activation and clinical efficacy in a total of 31 patients. The ONCOS-102 and SoC combination showed a favorable safety profile, robust immune responses in injected tumors and a signal of clinical benefit. In first line patients, the OS rate at 30 months was 34.1% for ONCOS-102-treated patients, which is a clear improvement over the first-line SoC-only control group where the OS rate was 0%.

Title of publication: ONCOS-102 plus pemetrexed and platinum chemotherapy in malignant pleural mesothelioma: a randomized phase 2 study investigating clinical outcomes and the tumor microenvironment

For the full publication, please see link: View Source

Margrethe Sørgaard, VP and Head of Clinical at Circio, said: "Mesothelioma remains a challenging disease with poor prognosis and few available treatment options. In this exploratory trial, ONCOS-102 demonstrated a clear signal of clinical benefit for this underserved patient group, particularly in an early treatment setting. Importantly, the study also showed that ONCOS-102 can be safely and effectively combined with chemotherapy and drive robust immune activation in an immunologically cold tumor type, thereby demonstrating the versatility of the product and expanding future development opportunities."

Celyad Oncology Reports First Half 2023 Financial Results and Recent Business Highlights

On September 4, 2023 Celyad Oncology (Euronext: CYAD) (the "Company" or "Celyad Oncology"), reported its financial results and recent business developments for the first half year, ended June 30, 2023 (Press release, Celyad, SEP 4, 2023, View Source [SID1234634860]).

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"Celyad Oncology is now fully focused on maximizing the potential of its proprietary technology platforms and intellectual property, enabling the Company to be at the forefront of developing next-generation CAR T-cell therapies. We are eager to see the impact of our research efforts on the future of CAR T-cell treatments, with the goal to broaden the range of cancer indications and tackle the main limitations of current CAR T-cell therapies" commented Georges Rawadi, Celyad Oncology’s Chief Executive Officer.

First Half 2023 and recent corporate highlights:

Georges Rawadi was appointed Chief Executive Officer of the Company as from April 27, 2023. Georges Rawadi is a seasoned executive with over 20 years of experience in pharma/biotech, as research director, business developer, CEO, and board member. He also has insightful knowledge of both the company and the CAR-T space as he spent four years at Celyad Oncology (2014-2018) as Vice-President Business Development & Intellectual Property ("BD & IP"). Georges Rawadi has a genuine passion for seeking and creating new business opportunities.
On May 5th, 2023, the Company announced voluntary delisting of its American Depositary Shares representing ordinary shares ("ADSs") from the Nasdaq Global Market. Delisting was effective as of July 20, 2023. The Company continues to be listed on Euronext Brussels and Euronext Paris.
On August 24, 2023, the Company announced that it has obtained commitments from Fortress, Tolefi and other longstanding existing shareholders to subscribe to a capital increase of up to €9.8 million in 2 tranches:
A first tranche of 2.0 million was disbursed in the context of authorized capital as of September 4, 2023; and
A second tranche to be subscribed by Fortress is subject to the approval by the extraordinary shareholders’ meeting. Following this private placement, the Company believes that its existing cash and cash equivalents should be sufficient, based on the current scope of activities, to fund operating expenses and capital expenditure requirements into the end of the fourth quarter of 2024.
First Half 2023 and recent operational highlights:

Short hairpin ribonucleic acid (shRNA) non-gene edited technology – During this first half of 2023, we have collected and presented data validating our shRNA multiplexing approach:
We developed a micro-RNA (miRNA)-based multiplex shRNA platform designed for easy, efficient, and tunable downregulation of up to four target genes simultaneously;
We showed that the downregulation of each target gene could be fine-tuned, from a moderate downregulation up to a functional knock-out, without the need of gene editing thereby avoiding associated potential safety issues;
The plug-and-play design of our platform is designed to allow swapping of each target sequence without affecting the performance of the technology and streamlining of the generation of engineered adoptive T-cell therapies;
To demonstrate the effectiveness of our approach, we have been able to simultaneous knock-down in CAR T-cells several genes involved in different cellular processes such as alloreactivity (CD3ζ), cell persistence (β2M, CIITA), T-cell exhaustion (PD-1, LAG-3), or ligand-induced apoptosis (CD95);
Data were presented at the World Oncology Cell Therapy Congress in Boston, US (April 25-26, 2023) and at the CAR-TCR Summit in Boston, US (August 29 – September 1).
NKG2D-based CAR T-cells and multi-specific CAR T-cell platform – During this first half of 2023, we have published data validating our NKG2D-based CAR T-cell approach and presented data from our multi-specific CAR T-cell platform:
Results from 16 patients treated in the dose-escalation segment of the hematological arm of the Phase I THINK trial were published in The Lancet Haematology Journal (Lancet Haematol. 2023 Mar;10(3):e191-e202) and provided proof-of-concept for targeting NKG2D ligands (NKG2DL) with CAR T-cell therapy;
We have developed different CD19/NKG2DL multi-specific CAR T-cells, utilizing both tandem and dual NKG2D-based CARs that encompass the extracellular domain of the natural NKG2D receptor fused to an anti-CD19 scFv, or co-expressed with an anti-CD19 CAR, respectively;
The majority of our CD19/NKG2DL multi-specific CAR T-cell candidates were able to secrete cytokines, proliferate, and eliminate acute lymphoblastic leukemia tumor cells lacking the CD19 antigen in vitro. Interestingly, some of these multi-specific CAR T-cells displayed a better in vitro functionality against wild-type leukemia tumor cells expressing the CD19 antigen as compared to CD19-specific single targeting CAR T-cells, highlighting the potential of our approach against both CD19 positive and CD19 negative cancer cells;
First in vivo data suggest that our CD19/NKG2DL multi-specific CAR T-cell candidates have an enhanced anti-tumor efficacy against heterogeneous lymphoma tumors as compared to currently existing treatment options;
We are currently developing several NKG2D-based multi-specific CAR T-cells for the treatment of diverse solid cancers where there is a high heterogeneity in antigen expression;
Data were presented at the Immuno-Oncology Summit Europe 2023 held in London, UK (June 20-22, 2023).
Upcoming anticipated milestones

More data and evidence in the context of the multi-specific CAR platform and shRNA multiplexing approach in H2 2023, with the aim of a clinical evaluation of assets and initiation of clinical trials either by the Company and/or through strategic partnerships afterwards;
Relocation, in H2 2023, into a new research facility which fits better its current needs after the strategic shift. The Company will remain headquartered at the Axis Parc, Mont-Saint-Guibert, Belgium but with its new business location at Dumont 9.
Upcoming Conferences

The Company will take part in the 4th International Conference on Lymphocyte Engineering (ICLE) in Munich (September 12-14) and the annual congress of the Society for Immunotherapy of Cancer (SITC) (Free SITC Whitepaper) in San Diego (November 1-5), as well at several business conferences in the second half of 2023.
First Half 2023 Financial Results

Key financial figures for the first half of 2023, compared with the first half of 2022 and full year 2022, are summarized below:

The Company’s license and collaboration agreements generated no revenue in the first half of 2023 similar to the first half of 2022.

The Research and Development (R&D) expenses have decreased primarily due to the Company’s decision to discontinue some of preclinical programs and manufacturing and clinical study activities after the Company’s decision to adopt and implement a new business strategy. Furthermore, there has been a decrease of employee expenses and related travel costs which is mainly related to headcount reduction through 2022, to support the Group’s reorganization around preclinical and clinical programs, as well as a decrease of the expenses associated with share-based payments (non-cash expenses) related to the warrant plan offered to the Company’s employees, managers and directors.

General and Administrative (G&A) expenses were €3.7 million in 2023 as compared to €6.2 million in 2022. This decrease is primarily related to lower insurances costs, the decrease of employee expenses due to headcount reduction and management changes through 2022 to support the Company’s reorganization and the decrease of the expenses associated with the share-based payments (non-cash expenses) related to the warrants plan offered to the Company’s employees, managers and directors.

As of June 30, 2023, there was no change in fair value of the contingent consideration and other financial liabilities as Management has determined that there have been no event (such as a firm sublicense or collaboration contract) that increases the probability of the projected future cash outflow due to Celdara Medical, LLC and Dartmouth College, indicating that the probability is remote, similar to December 31, 2022.

Regarding the other income/other expenses, the Company recorded €2.1 million in net other income for the first half of 2023 compared to a net other income of €1.6 million for the first half of 2022. The net other income for the first half of 2023 is primarily due to the gain on the sale of certain fixed assets to Cellistic for €1.1 million and grant income from the Walloon Region of €0.8 million.

Net loss was €3.7 million, or €(0.17) per share, for the first half of 2023 compared to a net loss of €14.1 million, or €(0.62) per share, for the same period of 2022.

Net cash used in operations, was €8.3 million for the first half of 2023 compared to €16.3 million for the first half of 2022. The decrease of €8.0 million is primarily driven by the sale of the manufacturing activities in 2022 combined with global decrease on preclinical and clinical activities, insurance costs, headcount, management changes costs and associated impact on the change in working capital.

As of June 30, 2023, the Company had cash and cash equivalents of €5.0 million. No capital increase has occurred in the first half of 2023.

As of June 30, 2023, the total number of basic shares outstanding were 22.6 million similar to December 31, 2022.

Conference Call and Webcast Details

A conference call will be held on Tuesday 5th of September at 1:00 p.m. CET / 7:00 a.m. EDT discuss half year 2023 financial results and provide an update on the Company’s recent changes and upcoming milestones.

Participants may access the conference call by dialing +1-877-407-9716 or +1-201-493-6779 (United States, International), +32 (0) 800-73-904 (Belgium Fixed) or +32 (0) 800-73-566 (Belgium Mobile). Participants may ask for instant telephone access to the event via the "Call me" link or attend the conference live webcast.

Archived recording will be available in the "Events" section of the Celyad website after the event.

Financial Calendar 2023

November 9th, 2023 Third Quarter 2023 Business Update
The financial calendar is communicated on an indicative basis and may be subject to change.

Calquence approved in China for chronic lymphocytic leukaemia

On September 4, 2023 AstraZeneca reported that Calquence (acalabrutinib), a next generation, selective Bruton’s tyrosine kinase (BTK) inhibitor, has been approved in China for the treatment of adult patients with chronic lymphocytic leukaemia (CLL) or small lymphocytic lymphoma (SLL) who have received at least one prior therapy (Press release, AstraZeneca, SEP 4, 2023, View Source [SID1234634856]).

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The approval by the National Medical Products Administration (NMPA) was based on positive results from two clinical trials, including the ASCEND Phase III trial of Calquence versus investigator’s choice of idelalisib plus rituximab (IdR) or bendamustine plus rituximab (BR) for patients with relapsed or refractory (R/R) CLL and an open-label, single-arm Phase I/II trial in China for patients with R/R CLL.1,2

CLL is the most prevalent type of adult leukaemia across the globe and represents approximately 6.4% of B-cell non-Hodgkin lymphoma patients in China.3

Professor Li Jianyong, Director of Haematology, People’s Hospital of Jiangsu Province, and Leader of China CLL Working Group, said: "Many people living with chronic lymphocytic leukaemia experience relapse and need additional treatment options to help manage their disease. I’m delighted that with this approval patients now have access to an established treatment that has already demonstrated effectiveness in many patients across the globe."

Dave Fredrickson, Executive Vice President, Oncology Business Unit, AstraZeneca, said: "Today’s approval is another step towards our goal of making Calquence available to as many patients as possible and offering physicians a treatment option with a well-established efficacy and tolerability profile. Patients with chronic lymphocytic leukaemia are often older and dealing with significant comorbidities, and tolerability is a critical factor in their treatment."

In the ASCEND Phase III trial, 88% of patients with R/R CLL treated with Calquence were alive and free from disease progression after 12 months compared with 68% of patients treated with IdR/BR.1 Longer-term follow-up data showed 62% of patients treated with Calquence were alive and had not progressed at 42 months versus 19% of patients treated with IdR/BR.

Additionally, results from a Phase I/II trial in Chinese adults with R/R CLL showed Calquence achieved an overall response rate (ORR) of 83.3%. At a median follow-up of 20.2 months, median progression-free survival (PFS) was not reached and the 12-month and 18-month PFS rates were 90.7% and 78.8%, respectively. The safety and tolerability of Calquence in these trials were consistent with that observed in previous clinical trials.1,2

Calquence is approved for the treatment of CLL and SLL in the US and Japan and is approved for the treatment of CLL in the EU and in several other countries worldwide in the treatment-naïve and R/R settings. Calquence is also approved in the US, China and several other countries for the treatment of adult patients with mantle cell lymphoma (MCL) who have received at least one prior therapy. Calquence is not currently approved for the treatment of MCL in Japan or the EU.

Notes

CLL
CLL is the most prevalent type of leukaemia in adults, with over 100,000 new cases globally in 2019.4 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 bone marrow and in blood 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. This could result in anaemia, infection and bleeding.6 B-cell receptor signalling through BTK is one of the essential growth pathways for CLL.

ASCEND
ASCEND (ACE-CL-309) is a global, randomised, multicentre, open-label Phase III trial evaluating the efficacy of Calquence in patients with relapsed or refractory CLL.1

In the trial, 310 patients were randomised (1:1) into two treatment arms.1 Patients in the first arm received Calquence monotherapy (100mg twice-daily until disease progression or unacceptable toxicity).1 Patients in the second arm received physician’s choice of either rituximab, a CD20 monoclonal antibody, in combination with idelalisib, a PI3-kinase inhibitor, or rituximab in combination with bendamustine, a chemotherapy.1

The primary endpoint at the interim analysis was PFS assessed by an independent review committee (IRC), and key secondary endpoints included investigator-assessed PFS, IRC and investigator-assessed ORR and duration of response, as well as overall survival (OS), patient-reported outcomes and time to next treatment.1

ASCEND is the first randomised Phase III trial to directly compare a BTK inhibitor as monotherapy to these combinations in relapsed or refractory CLL.1

Phase I/II trial in Chinese patients
The Phase I/II trial is an open-label, multicentre clinical trial evaluating pharmacokinetics, tolerability, safety and clinical efficacy of Calquence in adult Chinese patients with CLL who have received at least one prior therapy and other B-cell malignancies.2 In Phase I, patients with relapsed or refractory B-cell malignancies received a single dose of Calquence 100mg orally followed by a two-day washout period and subsequent treatment with Calquence 100mg orally twice daily in 28-day cycles, until progressive disease (PD) or treatment discontinuation (TD) for any other reason.2 In Phase II, patients with relapsed or refractory CLL (n=60) received Calquence 100mg orally twice daily until PD or TD for any other reason.2 The primary efficacy endpoint was ORR per International Workshop on Chronic Lymphocytic Leukemia (iwCLL) 2018 classification assessed by Blinded Independent Central Review (BICR).2 Secondary endpoints were investigator-assessed ORR, BICR- and investigator-assessed time to response, duration of response and PFS, OS, safety including adverse events and Calquence plasma concentration.2

Calquence
Calquence (acalabrutinib) is a next-generation, selective inhibitor of BTK. Calquence binds covalently to BTK, thereby inhibiting its activity.7 In B cells, BTK signalling results in activation of pathways necessary for B-cell proliferation, trafficking, chemotaxis and adhesion.

Calquence has been used to treat 50,000 patients worldwide and is approved for the treatment of CLL and SLL in the US, approved for CLL in the EU and many other countries worldwide and approved in Japan for relapsed or refractory CLL and SLL.

As part of an extensive clinical development programme, AstraZeneca is currently evaluating Calquence in more than 20 company-sponsored clinical trials. Calquence is being evaluated for the treatment of multiple B-cell blood cancers, including CLL, MCL, diffuse large B-cell lymphoma, Waldenström’s macroglobulinaemia, marginal zone lymphoma and other haematologic malignancies.

VAXINIA MAST trial clears intratumoral combination cohort 1

On September 4, 2023 Imugene Limited (ASX: IMU), a clinical stage immuno-oncology company, reported that its Phase 1 MAST (metastatic advanced solid tumours) trial evaluating the safety of novel cancer-killing virus CF33-hNIS (VAXINIA) has cleared cohort 1 of the intratumoral (IT) arm of the combination study where VAXINIA is administered in combination with Pembrolizumab (Press release, Imugene, SEP 4, 2023, View Source [SID1234634855]).

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As a result, Imugene is now recruiting for cohort 2 of each of the arms (IT and intravenous/IV) in the combination study, in addition to cohort 4 of each of the arms of the monotherapy dose escalation.Imugene MD & CEO Leslie Chong said: "We’ve now seen a very significant number of patients dosed with VAXINIA as part of the MAST study, with those patients suffering as a result of a variety of tumour types. It’s exciting that we’re getting so close to finding out the impact that this treatment is having for these patients in need."

The multicenter Phase 1 MAST trial commenced by delivering a low dose of VAXINIA to patients with metastatic or advanced solid tumours who have had at least two prior lines of standard of care treatment. The City of Hope-developed oncolytic virus has been shown to shrink colon, lung, breast, ovarian and pancreatic cancer tumours in preclinical laboratory and animal models. Overall, the study aims to recruit up to 100 patients across approximately 10 trial sites in the United States and Australia.

The clinical trial is titled "A Phase I, Dose Escalation Safety and Tolerability Study of VAXINIA (CF33- hNIS), Administered Intratumorally or Intravenously as a Monotherapy or in Combination with Pembrolizumab in Adult Patients with Metastatic or Advanced Solid Tumours (MAST)." The trial commenced in May 2022 and is anticipated to run for approximately 24 months while being funded from existing budgets and resources.