Study of Oral LOXO-338 in Patients With Advanced Blood Cancers

Multiple Myeloma Clinical Trial

Official title:

A Phase 1 Study of Oral LOXO-338, a Selective BCL-2 Inhibitor, in Patients With Advanced Hematologic Malignancies

Clinical Trial Details — Status: Active, not recruiting

Administrative data

• NCT number: NCT05024045
• Other study ID #: LOXO-BCL-20001
• Secondary ID: 2021-000060-30J3
• Status: Active, not recruiting
• Phase: Phase 1
• Start date: September 30, 2021
• Est. completion date: December 2023

Study information

• Verified date: May 2023
• Source: Eli Lilly and Company
• Contact: n/a
• Is FDA regulated: No
• Study type: Interventional

Clinical Trial Summary

The purpose of this study is to find out whether the study drug, LOXO-338, is safe and effective in patients with advanced blood cancer. Patients must have already received standard therapy. The study may last up to approximately 3 years.

Description:

This study will be conducted in 2 parts. Part 1 will evaluate LOXO-338 as monotherapy. If safety and initial evidence of efficacy of LOXO-338 monotherapy are confirmed, part 2 will evaluate the combination of LOXO-338 with the highly selective, noncovalent Bruton's tyrosine kinase (BTK) inhibitor, pirtobrutinib (LOXO-305).

Recruitment information / eligibility

• Status: Active, not recruiting
• Enrollment: 316
• Est. completion date: December 2023
• Est. primary completion date: May 2023
• Accepts healthy volunteers: No
• Gender: All
• Age group: 18 Years and older

Eligibility

Inclusion Criteria:

• B-cell malignancy.
• Patients must have received prior therapy.
• Patients must have an objective indication for therapy.
• Eastern Cooperative Oncology Group performance status (ECOG PS) of 0-1.
• Anticipated life expectancy of greater than or equal to (=) 12 weeks.
• Adequate bone marrow function.
• Adequate hepatic function.
• Creatinine clearance of = 60 milliliters (mL)/minute.
• Ability to swallow tablets.
• Ability to comply with outpatient treatment, laboratory monitoring, and required clinic visits for the duration of study participation.
• Prior treatment-related adverse events (AEs) must have recovered to grade less than or equal to (=) 1 or pretreatment baseline, with the exception of alopecia.
• Men with partners of childbearing potential or women of childbearing potential (WOCBP) must agree to use highly effective birth control.
• WOCBP must not be pregnant.
• Additional Inclusion Criteria for Patients with AL Amyloidosis
• In Part 1 Dose Expansion, patients with AL amyloidosis are eligible based on prior detection of primary systemic light-chain amyloidosis.
• Must have measurable disease of AL amyloidosis.
• Prior local fluorescence in-situ hybridization (FISH) testing results for t(11;14) are required to be submitted prior to enrollment.

Exclusion Criteria:

• Prior to identification of an appropriate RP2D (Dose Expansion) of LOXO-338, a history

of known, active or suspected:

• Richter's transformation to diffuse large B-cell lymphoma (DLBCL), prolymphocyticleukemia, or Hodgkin lymphoma
• Transformed low grade lymphoma
• Burkitt or Burkitt-like lymphoma
• Diffuse large B-cell lymphoma
• AL amyloidosis
• Multiple myeloma
• Lymphoblastic lymphoma or leukemia
• Posttransplant lymphoproliferative disorder
• Known or suspected history of central nervous system (CNS) involvement.
• History of allogeneic or autologous stem cell transplant (SCT) or chimeric antigen receptor-modified T cell (CAR-T) therapy within the past 60 days and with any of the

following:

• Active graft versus host disease (GVHD)
• Cytopenias from incomplete blood cell count recovery post-transplant or CAR-T therapy
• Need for anti-cytokine therapy for toxicity from CAR-T therapy; residual symptoms of neurotoxicity Grade > 1 from CAR-T therapy
• Ongoing immunosuppressive therapy
• Known human immunodeficiency virus (HIV) positive, regardless of cluster of differentiation 4 (CD4) count. Unknown or negative status eligible.
• Inability to take necessary uric acid lowering agents (i.e., allopurinol, rasburicase, orfebuxostat).
• Concurrent anticancer therapy.
• Concurrent treatment with strong cytochrome P450 3A4 (CYP3A4) inhibitors or inducers that can include antifungals.
• Use of = 20 milligrams (mg) prednisone once a day (QD) or equivalent dose of steroid per day, within 7 days of start of study treatment. Patients may not be on any dose of prednisone intended for antineoplastic use.
• Vaccination with a live vaccine within 28 days prior to start of study therapy.
• Major surgery within four weeks of planned start of study therapy Prolongation of the QT interval corrected by Fridericia's Formula for heart rate (QTcF) greater than (>) 470 milliseconds (msec).
• Clinically significant cardiovascular disease.
• Female patient who is pregnant or lactating.
• Active second malignancy which may preclude assessment of DLT.
• Clinically significant active malabsorption syndrome including surgical resection of small intestine or other condition likely to affect gastrointestinal (GI) absorption of the orally administered study drugs.
• Active hepatitis B or C infection.
• Evidence of other clinically significant uncontrolled condition(s) including, but not limited to, uncontrolled systemic infection (viral, bacterial, or fungal) or other clinically significant active disease process.
• Active uncontrolled auto-immune cytopenia.
• Additional Exclusion Criteria for Patients with AL Amyloidosis (Part 1 Dose-Expansion)
• Previous or current diagnosis of symptomatic MM.
• Heart failure that, in the opinion of the Investigator, is on the basis of ischemic heart disease.
• Supine systolic blood pressure < 90 mmHg, or symptomatic orthostatic hypotension in the absence of volume depletion.
• N-terminal pro hormone natriuretic peptide (NT-proBNP) > 8500 ng/L (or BNP > 700 ng/L if NT-proBNP is not available by local or central testing).
• Additional exclusion criteria for patients enrolled to part 2: LOXO-338 and pirtobrutinib combination
• Prior progression or intolerance to pirtobrutinib.
• Patients requiring therapeutic anticoagulation with warfarin.
• Known hypersensitivity to any component or excipient of pirtobrutinib.
• In patients with history of myocardial infarction or congestive heart failure, documented left ventricular ejection fraction (LVEF) by any method of = 45 percent (%) in the 12 months prior to planned start of study treatment.
• History of uncontrolled or symptomatic arrhythmias including grade = 3 arrhythmia on a prior BTK inhibitor.
• History of major bleeding on a prior BTK inhibitor.
• Current treatment with strong permeability glycoprotein (P-gp) inhibitors.

Related Conditions & MeSH terms

• B-cell Lymphoma
• Leukemia, Lymphocytic, Chronic, B-Cell
• Leukemia, Lymphoid
• Lymphoma
• Lymphoma, B-Cell
• Lymphoma, Mantle-Cell
• Lymphoma, Non-Hodgkin
• Multiple Myeloma
• Waldenstrom Macroglobulinemia

Intervention

Drug:
• LOXO-338
Oral
• Pirtobrutinib
Oral

Locations

Country	Name	City	State
France	CHRU de Montpellier-Hopital St Eloi	Montpellier Cedex 5
France	Centre Hospitalier Universitaire de Nantes - L' Hopital l'hôtel-Dieu	Nantes
France	Institut Curie	Paris
France	Centre hospitalier universitaire de Haut Leveque	Pessac Cedex
France	Centre Hospitalier Lyon Sud	Pierre-Bénite	Cedex
France	L'Institut Universitaire du Cancer de Toulouse Oncopole	Toulouse	Cedex 9
Italy	IRCCS - AOU di Bologna	Bologna
Poland	Pratia MCM Krakow	Krakow
Poland	Centrum Medyczne Pratia Poznan	Skorzewo	Poznan
Poland	Narodowy Instytut Onkologii im. Marii Sklodowskiej-Curie Panstwowy Instytut Badawczy	Warszawa
United States	Emory University	Atlanta	Georgia
United States	Tufts Medical Center	Boston	Massachusetts
United States	City of Hope National Medical Center	Duarte	California
United States	Indiana Blood & Marrow Transplantation (IBMT)	Indianapolis	Indiana
United States	Mayo Clinic in Florida	Jacksonville	Florida
United States	Sylvester Comprehensive Cancer Center	Miami	Florida
United States	Medical College of Wisconsin	Milwaukee	Wisconsin
United States	Memorial Sloan Kettering Cancer Center	New York	New York
United States	Mayo Clinic	Rochester	Minnesota
United States	University of California San Francisco, Medical Center at Paranassus	San Francisco	California
United States	Swedish Medical Center	Seattle	Washington
United States	The University of Arizona Cancer Center	Tucson	Arizona
United States	University of Kansas Medical Center	Westwood	Kansas

Sponsors (2)

Lead Sponsor	Collaborator
Eli Lilly and Company	Loxo Oncology, Inc.

Countries where clinical trial is conducted

United States,  France,  Italy,  Poland, 

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	Part 1 - To determine the maximum tolerated dose (MTD)/recommended phase 2 dose (RP2D) of oral LOXO-338	Measured by the number of patients with dose-limiting toxicities (DLTs)	Cycle 1 (28 Days)
Primary	Part 1 - To determine the effect of LOXO-338 on response rates	Measured by the appropriate disease specified response criteria as appropriate to tumor type	Estimated up to 2 years
Primary	Part 2 - To determine the safety and tolerability of LOXO-338 when given in combination with pirtobrutinib	Measured by the number of patients with dose-limiting toxicities (DLTs)	Cycle 2 (28 Days)
Secondary	Part 1 - To characterize the pharmacokinetics (PK) properties of LOXO-338: Area under the plasma concentration versus time curve (AUC)	PK: AUC of LOXO-338	Predose up to 24 hours postdose
Secondary	Part 1 - To characterize the PK properties of LOXO-338: Maximum drug concentration (Cmax)	PK: Cmax of LOXO-338	Predose up to 24 hours postdose
Secondary	Part 1 - To assess preliminary antitumor activity of LOXO-338 based on overall response rate (ORR)	ORR	Estimated up to 2 years
Secondary	Part 1 - To assess preliminary antitumor activity of LOXO-338 based on progression-free survival (PFS)	PFS	Estimated up to 2 years
Secondary	Part 1 - To assess preliminary antitumor activity of LOXO-338 based on time-to-progression (TTP)	TTP	Estimated up to 2 years
Secondary	Part 1 - To assess preliminary antitumor activity of LOXO-338 based on duration of response (DOR)	DOR	Estimated up to 2 years
Secondary	Part 2 - To characterize the pharmacokinetics (PK) properties of LOXO-338 in combination with pirtobrutinib: Area under the plasma concentration versus time curve (AUC)	PK: AUC of LOXO-338 alone and in combination with pirtobrutinib	Predose up to 24 hours postdose
Secondary	Part 2 - To characterize the PK properties of LOXO-338 and in combination with pirtobrutinib: Maximum drug concentration (Cmax)	PK: Cmax of LOXO-338 alone and in combination with pirtobrutinib	Predose up to 24 hours postdose
Secondary	Part 2 - To assess preliminary antitumor activity of LOXO-338 alone and in combination with pirtobrutinib based on overall response rate (ORR)	ORR	Estimated up to 2 years
Secondary	Part 2 - To assess preliminary antitumor activity of LOXO-338 alone and in combination with pirtobrutinib based on progression-free survival (PFS)	PFS	Estimated up to 2 years
Secondary	Part 2 - To assess preliminary antitumor activity of LOXO-338 alone and in combination with pirtobrutinib based on time-to-progression (TTP)	TTP	Estimated up to 2 years
Secondary	Part 2 - To assess preliminary antitumor activity of LOXO-338 alone and in combination with pirtobrutinib based on duration of response (DOR)	DOR	Estimated up to 2 years

External Links

•   Study of Oral LOXO-338 in Patients with Advanced Blood Cancers