tulmimetostat (DZR123) / Novartis - LARVOL DELTA

CDZR123A12107: A clinical trial to learn about the effects of DZR123 and JSB462 given together in men with advanced prostate cancer that has stopped responding to other treatments (clinicaltrialsregister.eu) - P1/2 | N=76 | Recruiting | Sponsor: Novartis Pharma AG | Not yet recruiting ➔ Recruiting

Enrollment open • Castration-Resistant Prostate Cancer • Genito-urinary Cancer • Oncology • Prostate Adenocarcinoma • Prostate Cancer • Solid Tumor

CDZR123A12107: A clinical trial to learn about the effects of DZR123 and JSB462 given together in men with advanced prostate cancer that has stopped responding to other treatments (clinicaltrialsregister.eu) - P1/2 | N=76 | Not yet recruiting | Sponsor: Novartis Pharma AG

New P1/2 trial • Castration-Resistant Prostate Cancer • Genito-urinary Cancer • Oncology • Prostate Adenocarcinoma • Prostate Cancer • Solid Tumor

TulmiSTAR-01: A phase I/II dose optimization study of tulmimetostat in combination with luxdegalutamide versus standard of care (SOC) in patients (pts) with progressive metastatic castrate-resistant prostate cancer (mCRPC). (ASCO-GU 2026) - P1/2 | "Research Funding Novartis Pharma AG. *Choice of ARPI, chemotherapy or lutetium (177Lu) vipivotide tetraxetan. BOR, best overall response; mo, months; DOR, duration of response; QD, once a daily; ORR, objective radiographic response; OS, overall survival; PK, pharmacokinetics, PSA, prostate-specific antigen; RDE, recommended dose for expansion; rPFS, radiographic progression-free survival; R, randomization; RP2D, recommended phase II dose; SOC, standard of care; TTSSE, time to first symptomatic skeletal event."

Clinical • Combination therapy • Metastases • P1/2 data • Castration-Resistant Prostate Cancer • Genito-urinary Cancer • Oncology • Prostate Cancer • Solid Tumor • EZH2

CDZR123C12101: TulmiSTAR-02: Phase I/II open-label study of tulmimetostat in combination with darolutamide vs. darolutamide, and tulmimetostat with abiraterone in patients with metastatic hormone-sensitive prostate cancer (mHSPC) (clinicaltrialsregister.eu) - P1/2 | N=54 | Recruiting | Sponsor: Novartis Pharma AG

New P1/2 trial • Genito-urinary Cancer • Hormone Sensitive Prostate Cancer • Oncology • Prostate Cancer • Solid Tumor

TulmiSTAR-02: A phase I/II open-label study of dose escalation and expansion of tulmimetostat in combination with darolutamide versus darolutamide, and tulmimetostat with abiraterone in patients with metastatic hormone-sensitive prostate cancer (mHSPC). (ASCO-GU 2026) - P1/2 | "The time-to-event efficacy endpoints will be estimated by Kaplan–Meier method. BCR, biochemical response rate; BID, Twice a day; BOR, best overall response; CRPC, castration–resistant prostate cancer; DOR, duration of response; QD, once a daily; OR, objective response; OS, overall survival; PK, pharmacokinetics, PSA, prostate-specific antigen; PO, oral; RDE, recommended dose for expansion; rPFS, radiographic progression-free survival; TTSSE, time to first symptomatic skeletal event."

Clinical • Combination therapy • Metastases • P1/2 data • Castration-Resistant Prostate Cancer • Genito-urinary Cancer • Hormone Sensitive Prostate Cancer • Oncology • Prostate Cancer • Solid Tumor • EZH2

Tulmimetostat (DZR123) in Patients With Mycosis Fungoides and Sézary Syndrome (clinicaltrials.gov) - P1 | N=24 | Active, not recruiting | Sponsor: Washington University School of Medicine | Recruiting ➔ Active, not recruiting | N=36 ➔ 24 | Trial completion date: Jan 2030 ➔ Jan 2029 | Trial primary completion date: Feb 2028 ➔ Feb 2027

Enrollment change • Enrollment closed • Trial completion date • Trial primary completion date • Cutaneous T-cell Lymphoma • Dermatology • Lymphoma • Mycosis Fungoides • Non-Hodgkin’s Lymphoma • Oncology • Sezary Syndrome

EZH2 Inhibitor, Tulmimetostat, and PD-1 Blockade for Treatment of Advanced Non-small Cell Lung Cancer (clinicaltrials.gov) - P1/2 | N=66 | Recruiting | Sponsor: VA Office of Research and Development | Not yet recruiting ➔ Recruiting

Enrollment open • Lung Cancer • Non Small Cell Lung Cancer • Oncology • Solid Tumor

Phase II dose optimization with EZH2/EZH1 inhibitor tulmimetostat in patients (pts) with advanced solid tumors or hematologic malignancies. (ASCO 2024) - P1/2 | "The evolving Phase II data, including early data from lower doses, continue to show signs of antitumor activity/disease stabilization. The safety profile is consistent with EZH2 inhibition. These preliminary findings in heavily pretreated pts with multiple tumor types and evolving dose-optimization data support ongoing investigation of tulmimetostat."

Clinical • Metastases • P2 data • Anemia • Endometrial Cancer • Hematological Disorders • Hematological Malignancies • Oncology • Ovarian Cancer • Solid Tumor • Thrombocytopenia • EZH2

TulmiSTAR-02: A Phase I/II Open-label Study of Tulmimetostat in Combination With Darolutamide vs. Darolutamide, and Tulmimetostat With Abiraterone in Patients With Metastatic Hormone-sensitive Prostate Cancer (mHSPC) (clinicaltrials.gov) - P1/2 | N=203 | Recruiting | Sponsor: Novartis Pharmaceuticals | Not yet recruiting ➔ Recruiting

Enrollment open • Genito-urinary Cancer • Hormone Sensitive Prostate Cancer • Oncology • Prostate Cancer • Solid Tumor

An Open-label Dose Escalation and Expansion, Followed by a Phase II Study of Tulmimetostat (DZR123) and JSB462 (Luxdegalutamide) in Patients With Progressive Metastatic Castrate Resistant Prostate Cancer (mCRPC) (TulmiSTAR-01) (clinicaltrials.gov) - P1/2 | N=188 | Recruiting | Sponsor: Novartis Pharmaceuticals | Not yet recruiting ➔ Recruiting

Enrollment open • Castration-Resistant Prostate Cancer • Genito-urinary Cancer • Oncology • Prostate Cancer • Solid Tumor

An Open-label Dose Escalation and Expansion, Followed by a Phase II Study of Tulmimetostat (DZR123) and JSB462 (Luxdegalutamide) in Patients With Progressive Metastatic Castrate Resistant Prostate Cancer (mCRPC) (TulmiSTAR-01) (clinicaltrials.gov) - P1/2 | N=188 | Not yet recruiting | Sponsor: Novartis Pharmaceuticals

New P1/2 trial • Castration-Resistant Prostate Cancer • Genito-urinary Cancer • Oncology • Prostate Cancer • Solid Tumor

TulmiSTAR-02: A Phase I/II Open-label Study of Tulmimetostat in Combination With Darolutamide vs. Darolutamide, and Tulmimetostat With Abiraterone in Patients With Metastatic Hormone-sensitive Prostate Cancer (mHSPC) (clinicaltrials.gov) - P1/2 | N=203 | Not yet recruiting | Sponsor: Novartis Pharmaceuticals

New P1/2 trial • Genito-urinary Cancer • Hormone Sensitive Prostate Cancer • Oncology • Prostate Cancer • Solid Tumor

CPI-0209 Plus Carboplatin in Patients With Platinum Sensitive Recurrent Ovarian Cancer (clinicaltrials.gov) - P1 | N=30 | Recruiting | Sponsor: Lan Coffman | Trial primary completion date: Jul 2026 ➔ Nov 2026

Platinum sensitive • Trial primary completion date • Oncology • Ovarian Cancer • Solid Tumor • BRCA

Phase II dose optimization update with EZH2/EZH1 inhibitor tulmimetostat in patients with ARID1A-mutated ovarian clear cell carcinoma or endometrial carcinoma. (ASCO 2025) - P1/2 | "Tulmimetostat showed an improved and acceptable safety profile in OCCC and EC at 200 mg and 300 mg doses (versus 350 mg) with promising antitumor activity, supporting further clinical investigation. Best confirmed responses and most common Grade ≥3 related TEAEs.Data cut off: October 15, 2024. *Patients who received ≥1 dose, had ≥1 post-baseline response assessment, or discontinued treatment prior to first post-baseline assessment for any reason."

Clinical • P2 data • Clear Cell Carcinoma • Endometrial Cancer • Oncology • Oral Cancer • Ovarian Cancer • Solid Tumor • ARID1A • EZH2 • STAT3

FIH: A Study of Tulmimetostat DZR123 (CPI-0209) in Patients With Advanced Solid Tumors and Lymphomas (clinicaltrials.gov) - P1/2 | N=275 | Recruiting | Sponsor: Novartis Pharmaceuticals | N=210 ➔ 275 | Trial completion date: Mar 2026 ➔ Feb 2030 | Trial primary completion date: Dec 2025 ➔ Feb 2030

Enrollment change • Trial completion date • Trial primary completion date • B Cell Lymphoma • Castration-Resistant Prostate Cancer • Clear Cell Carcinoma • Diffuse Large B Cell Lymphoma • Genito-urinary Cancer • Hematological Malignancies • Lymphoma • Mesothelioma • Non-Hodgkin’s Lymphoma • Oncology • Ovarian Cancer • Peripheral T-cell Lymphoma • Prostate Cancer • Solid Tumor • T Cell Non-Hodgkin Lymphoma • Urothelial Cancer • ARID1A • BAP1 • MSI

CPI-0209 Plus Carboplatin in Patients With Platinum Sensitive Recurrent Ovarian Cancer (clinicaltrials.gov) - P1 | N=30 | Recruiting | Sponsor: Lan Coffman | Trial completion date: Aug 2028 ➔ Dec 2028 | Trial primary completion date: May 2025 ➔ Jul 2026

Platinum sensitive • Trial completion date • Trial primary completion date • Oncology • Ovarian Cancer • Solid Tumor • BRCA

Polycomb repressive complex 2 (PRC2) pathway's role in cancer cell plasticity and drug resistance. (PubMed, Funct Integr Genomics) - "Inhibitors like MAK683 and EED226 disrupt EED's ability to maintain PRC2 activity, thereby reducing H3K27me3 levels and reactivating tumor suppressor genes. Valemetostat, a dual inhibitor of both EZH2 and EED, has shown promising results in aggressive cancers like diffuse large B-cell lymphoma and small-cell lung cancer, underlining the therapeutic potential of targeting multiple PRC2 components...Tazemetostat, a selective EZH2 inhibitor, has demonstrated significant clinical efficacy in EZH2-mutant cancers, such as non-Hodgkin lymphomas and epithelioid sarcoma. However, the compensatory function of enhancer of zeste homolog 1 (EZH1) in some cancers requires dual inhibition strategies, as seen with agents like UNC1999 and Tulmimetostat, which target both EZH1 and EZH2. Given PRC2's multifaceted role in cancer biology, its inhibition represents a promising avenue for therapeutic intervention. The continued development of PRC2 inhibitors and exploration of their..."

IO biomarker • Journal • Review • B Cell Lymphoma • Diffuse Large B Cell Lymphoma • Genito-urinary Cancer • Hematological Malignancies • Lung Cancer • Lymphoma • Non-Hodgkin’s Lymphoma • Oncology • Prostate Cancer • Sarcoma • Small Cell Lung Cancer • Soft Tissue Sarcoma • Solid Tumor • EZH2

CPI-0209 Plus Carboplatin in Patients With Platinum Sensitive Recurrent Ovarian Cancer (clinicaltrials.gov) - P1 | N=30 | Recruiting | Sponsor: Lan Coffman | Trial completion date: Aug 2029 ➔ Aug 2028 | Trial primary completion date: Jan 2027 ➔ May 2025

Trial completion date • Trial primary completion date • Oncology • Ovarian Cancer • Solid Tumor • BRCA

Phase II dose optimization with EZH2/EZH1 inhibitor tulmimetostat in patients with ARID1A-mutated ovarian clear cell carcinoma (ESMO 2024) - P1/2 | "This ongoing Phase II data in patients with heavily pretreated ARID1A-mutated OCCC show signs of antitumor activity across dose levels. Response requirements to open Stage 2b have been met in this fast enrolling disease cohort. The safety profile across doses is consistent with EZH2 inhibition."

Clinical • P2 data • Oncology • Ovarian Cancer • ARID1A • EZH2 • STAT3

Comprehensive Target Engagement by the EZH2 Inhibitor Tulmimetostat Allows for Targeting of ARID1A Mutant Cancers. (PubMed, Cancer Res) - "Tulmimetostat administration achieved efficacy in multiple ARID1A mutant bladder, ovarian, and endometrial tumor models and improved cisplatin response in chemotherapy-resistant models. Importantly, a tulmimetostat controlled gene expression signature identified in whole blood from a cohort of 32 cancer patients correlated with tulmimetostat exposure, representing a pharmacodynamic marker for the assessment of target coverage for PRC2-targeted agents in the clinic. Collectively, this data suggests that tulmimetostat has the potential to achieve clinical benefit in solid tumors as a monotherapy but also in combination with chemotherapeutic agents and may be beneficial in various indications with recurrent ARID1A mutations."

Journal • Bladder Cancer • Endometrial Cancer • Genito-urinary Cancer • Oncology • Ovarian Cancer • Solid Tumor • Urothelial Cancer • ARID1A • BCL11B

Novartis meets all tender offer conditions to acquire MorphoSys AG for EUR 68 per share in cash (GlobeNewswire) - "Today, Novartis BidCo AG...announced the result of its voluntary public takeover offer (the 'Offer') for the shares of MorphoSys AG ('MorphoSys'), including all shares represented by MorphoSys American Depositary Shares ('ADS'). As of the expiry of the acceptance period at 24:00 hours CEST on 13 May 2024...The settlement of the shares tendered during the initial acceptance period is scheduled for 23 May 2024....With all offer conditions fulfilled, Novartis can now begin the necessary steps to progress the integration of MorphoSys, including full access to pelabresib (CPI-0610), a novel BET inhibitor in combination with ruxolitinib for patients with myelofibrosis. The integration also allows full access to tulmimetostat (CPI-0209), an early-stage investigational dual inhibitor of EZH1 and EZH2 currently being tested in patients with solid tumors or lymphomas."

M&A • Lymphoma • Myelofibrosis • Solid Tumor

MorphoSys To Present New Phase 3 MANIFEST-2 Data on Pelabresib in Myelofibrosis in Oral Presentation at 2024 ASCO Annual Meeting (ACCESSWIRE) - "MorphoSys AG...announced that new efficacy and safety data from the Phase 3 MANIFEST-2 trial of pelabresib, an investigational BET inhibitor, in combination with the JAK inhibitor ruxolitinib in JAK inhibitor-naïve patients with myelofibrosis will be highlighted during an oral presentation on Friday, May 31, at the 2024 American Society of Clinical Oncology (ASCO) Annual Meeting.....Additionally, new data from the Phase 2 study of tulmimetostat, an investigational next-generation dual inhibitor of EZH2 and EZH1, in patients with advanced solid tumors or hematologic malignancies will be showcased in a poster presentation at ASCO 2024."

P2 data • P3 data • Hematological Malignancies • Myelofibrosis • Solid Tumor

Novartis to strengthen oncology pipeline with agreement to acquire MorphoSys AG for EUR 68 per share or an aggregate of EUR 2.7bn in cash (GlobeNewswire) - "Novartis today announced that it has entered into an agreement to make a voluntary public takeover offer to acquire MorphoSys AG....The acquisition, which is subject to customary closing conditions, including a minimum acceptance threshold of 65% of outstanding shares tendered in the takeover offer and regulatory approvals, further expands and complements Novartis pipeline in oncology....Upon completion of the acquisition, Novartis will own pelabresib (CPI-0610), a novel and potentially practice changing treatment option with a well-tolerated safety profile provided in combination with ruxolitinib for patients with myelofibrosis (MF). It will also include tulmimetostat (CPI-0209), an early-stage investigational dual inhibitor of enhancer of zeste homolog 1 and 2 (EZH1 and EZH2) proteins currently being tested in patients with solid tumors or lymphomas."

M&A • Lymphoma • Myelofibrosis • Solid Tumor

CPI-0209 Plus Carboplatin in Patients With Platinum Sensitive Recurrent Ovarian Cancer (clinicaltrials.gov) - P1 | N=30 | Recruiting | Sponsor: Lan Coffman | Not yet recruiting ➔ Recruiting | Trial primary completion date: Dec 2027 ➔ Jan 2027

Combination therapy • Enrollment open • Trial primary completion date • Oncology • Ovarian Cancer • Solid Tumor • BRCA

Tulmimetostat (CPI-0209) in Patients With Mycosis Fungoides and Sézary Syndrome (clinicaltrials.gov) - P1 | N=30 | Recruiting | Sponsor: Washington University School of Medicine | Not yet recruiting ➔ Recruiting

Enrollment open • Cutaneous T-cell Lymphoma • Dermatology • Lymphoma • Mycosis Fungoides • Non-Hodgkin’s Lymphoma • Oncology • Sezary Syndrome