MedPath

Study of SLS009 (Formerly GFH009) a Potent Highly Selective CDK9 Inhibitor in Patients With Hematologic Malignancies

Phase 1
Recruiting
Conditions
Hematologic Malignancies
Interventions
Registration Number
NCT04588922
Lead Sponsor
Sellas Life Sciences Group
Brief Summary

SLS009 (formerly GFH009) is a potent and highly selective CDK9 inhibitor. In this study the safety, tolerability, and antitumor activity of single agent SLS009 are assessed in two dose escalation groups (Group 1 in patients with relapsed/refractory AML, Group 2 in patients with relapse/refractory lymphoma/CLL/SLL). The safety, tolerability, and antitumor activity of SLS009 in combination with venetoclax and azacitidine in patient with relapsed/refractory AML who have relapsed on or are refractory to venetoclax-based regimens are being assessed in five cohorts of the expansion Group 3.

Detailed Description

SLS009 is a potent and highly selective CDK9 inhibitor. This study is investigating the safety, tolerability, and antitumor activity of SLS009 in patients with hematologic malignancies in three groups (two dose escalation groups and one expansion group). The safety and efficacy of SLS009 as a single agent are assessed in Group 1 (patients with relapsed/refractory AML) and Group 2 (patients with relapsed/refractory lymphoma/CLL/SLL). The safety and efficacy of SLS009 in combination with venetoclax and azacitidine in patients with relapsed/refractory AML who have relapsed on or are refractory to venetoclax-based regimens are being assessed in five different cohorts in the expansion Group 3. The cohorts in Group 3 include three cohorts to assess different dose levels (Cohorts 1, 2, and 3), a cohort enrolling patients with r/r AML and ASXL1 mutations and a cohort enrolling patients with r/r AML with other myelodysplasia-related mutations other than ASXL1.

Recruitment & Eligibility

Status
RECRUITING
Sex
All
Target Recruitment
160
Inclusion Criteria

Not provided

Read More
Exclusion Criteria

Not provided

Read More

Study & Design

Study Type
INTERVENTIONAL
Study Design
SEQUENTIAL
Arm && Interventions
GroupInterventionDescription
Group 2. Dose escalation in patients with r/r CLL/SLL or lymphomaSLS009In the dose escalation part, the dose levels will be escalated following the Bayesian optimal interval (BOIN) design. China and US study sites. (Completed).
Group 3 Cohort 3. 30 mg BIW in patients with r/r AML.SLS009SLS009 (30 mg BIW) in combination with venetoclax and azacitidine in patients with r/r AML who have relapsed on or are refractory to venetoclax-based regimens. US study sites only. (Cohort completed).
Group 1. Dose escalation in patients with r/r AMLSLS009In the dose escalation part, the dose levels will be escalated following the Bayesian optimal interval (BOIN) design. China study sites only. (Completed).
Group 3 Cohort 1. 45 mg QW in patients with r/r AMLSLS009SLS009 (45 mg QW) in combination with venetoclax and azacitidine in patients with r/r AML who have relapsed on or are refractory to venetoclax-based regimens. US study sites only. (Cohort completed)
Group 3 Cohort 2. 60 mg QW in patients with r/r AML.SLS009SLS009 (60 mg QW) in combination with venetoclax and azacitidine in patients with r/r AML who have relapsed on or are refractory to venetoclax-based regimens. US study sites only. (Cohort completed).
Group 3 Cohort 4. 30 mg BIW in patients with r/r AML with ASXL1 mutation.SLS009SLS009 (30 mg BIW) in combination with venetoclax and azacitidine in patients with r/r AML who have relapsed or are refractory to venetoclax-based regimens and with documented ASXL1 mutation.
Group 3 Cohort 5. 30 mg BIW in pts with r/rAML with other than ASXL1 mutationsSLS009SLS009 (30 mg BIW) in combination with venetoclax and azacitidine in patients with r/r AML who have relapsed or are refractory to venetoclax-based regimens and with documented Defining somatic mutations, Cytogenetic abnormalities defining acute myeloid leukemia, myelodysplasia related, other than ASXL1 mutation per WHO 5th Edition classification.
Group 3 Cohort 2. 60 mg QW in patients with r/r AML.venetoclaxSLS009 (60 mg QW) in combination with venetoclax and azacitidine in patients with r/r AML who have relapsed on or are refractory to venetoclax-based regimens. US study sites only. (Cohort completed).
Group 3 Cohort 1. 45 mg QW in patients with r/r AMLvenetoclaxSLS009 (45 mg QW) in combination with venetoclax and azacitidine in patients with r/r AML who have relapsed on or are refractory to venetoclax-based regimens. US study sites only. (Cohort completed)
Group 3 Cohort 1. 45 mg QW in patients with r/r AMLazacitidineSLS009 (45 mg QW) in combination with venetoclax and azacitidine in patients with r/r AML who have relapsed on or are refractory to venetoclax-based regimens. US study sites only. (Cohort completed)
Group 3 Cohort 2. 60 mg QW in patients with r/r AML.azacitidineSLS009 (60 mg QW) in combination with venetoclax and azacitidine in patients with r/r AML who have relapsed on or are refractory to venetoclax-based regimens. US study sites only. (Cohort completed).
Group 3 Cohort 4. 30 mg BIW in patients with r/r AML with ASXL1 mutation.venetoclaxSLS009 (30 mg BIW) in combination with venetoclax and azacitidine in patients with r/r AML who have relapsed or are refractory to venetoclax-based regimens and with documented ASXL1 mutation.
Group 3 Cohort 3. 30 mg BIW in patients with r/r AML.azacitidineSLS009 (30 mg BIW) in combination with venetoclax and azacitidine in patients with r/r AML who have relapsed on or are refractory to venetoclax-based regimens. US study sites only. (Cohort completed).
Group 3 Cohort 3. 30 mg BIW in patients with r/r AML.venetoclaxSLS009 (30 mg BIW) in combination with venetoclax and azacitidine in patients with r/r AML who have relapsed on or are refractory to venetoclax-based regimens. US study sites only. (Cohort completed).
Group 3 Cohort 4. 30 mg BIW in patients with r/r AML with ASXL1 mutation.azacitidineSLS009 (30 mg BIW) in combination with venetoclax and azacitidine in patients with r/r AML who have relapsed or are refractory to venetoclax-based regimens and with documented ASXL1 mutation.
Group 3 Cohort 5. 30 mg BIW in pts with r/rAML with other than ASXL1 mutationsvenetoclaxSLS009 (30 mg BIW) in combination with venetoclax and azacitidine in patients with r/r AML who have relapsed or are refractory to venetoclax-based regimens and with documented Defining somatic mutations, Cytogenetic abnormalities defining acute myeloid leukemia, myelodysplasia related, other than ASXL1 mutation per WHO 5th Edition classification.
Group 3 Cohort 5. 30 mg BIW in pts with r/rAML with other than ASXL1 mutationsazacitidineSLS009 (30 mg BIW) in combination with venetoclax and azacitidine in patients with r/r AML who have relapsed or are refractory to venetoclax-based regimens and with documented Defining somatic mutations, Cytogenetic abnormalities defining acute myeloid leukemia, myelodysplasia related, other than ASXL1 mutation per WHO 5th Edition classification.
Primary Outcome Measures
NameTimeMethod
Safety and Tolerability: Dose Limiting Toxicities (DLTs)21 to 28 days

The incidence of DLTs

Safety and Tolerability: adverse events (AEs)approximately 2 years

The incidence and severity of all AEs

Secondary Outcome Measures
NameTimeMethod
Efficacy: PFS2 years

Progression-free survival

PK parameter AUC0-∞approximately 3 months

Area under the plasma concentration-time curve (from zero to infinity)

Efficacy: ORR2 years

Overall response rate is the proportion of patients showing anti-leukemic activity in response to treatment

PK parameter Tmaxapproximately 3 months

Time for maximum plasma concentration reached following administration of study drug

PK parameter tΒ½approximately 3 months

Half-life of study drug

Efficacy: DOR2 years

Duration of response in patients

PK parameter Cmaxapproximately 3 months

Maximum plasma concentration reached following administration of study drug

PK parameter AUC0-tapproximately 3 months

Area under the plasma concentration-time curve (from zero to the time of the last measurable concentration)

Efficacy:OS2 years

Overall survival

Trial Locations

Locations (21)

MD Anderson

πŸ‡ΊπŸ‡Έ

Houston, Texas, United States

Linyi Cancer Hospital

πŸ‡¨πŸ‡³

Linyi, Shandong, China

The First Affiliated Hospital of Bengbu Medical College

πŸ‡¨πŸ‡³

Bengbu, Anhui, China

Affiliated Hospital of Hebei University

πŸ‡¨πŸ‡³

Baoding, Hebei, China

The First Affiliated Hospital of Soochow University

πŸ‡¨πŸ‡³

Suzhou, Jiangsu, China

Shengjing Hospital Affiliated to China Medical University

πŸ‡¨πŸ‡³

Shenyang, Liaoning, China

Blood disease hospital, Chinese Academy of Medical Science

πŸ‡¨πŸ‡³

Tianjin, Tianjin, China

The Second Affiliated hospital of Zhejiang University School of Medicine

πŸ‡¨πŸ‡³

Hangzhou, Zhejiang, China

Clinical Research Alliance, Inc.

πŸ‡ΊπŸ‡Έ

Lake Success, New York, United States

New York - Presbyterian Hospital

πŸ‡ΊπŸ‡Έ

New York, New York, United States

O'Neal Comprehensive Cancer Center, University of Alabama

πŸ‡ΊπŸ‡Έ

Birmingham, Alabama, United States

UNC School of Medicine, Division of Hematology

πŸ‡ΊπŸ‡Έ

Chapel Hill, North Carolina, United States

Baylor Scott & White Health

πŸ‡ΊπŸ‡Έ

Dallas, Texas, United States

Anhui Provincial Hospital

πŸ‡¨πŸ‡³

Hefei, Anhui, China

Affiliated Cancer Hospital of Chongqing University

πŸ‡¨πŸ‡³

Chongqing, Chongqing, China

Cancer prevention and treatment center of Sun Yat sen University

πŸ‡¨πŸ‡³

Guangzhou, Guangdong, China

Guangdong Provincial People's Hospital

πŸ‡¨πŸ‡³

Guangzhou, Guangdong, China

Henan Cancer Hospital

πŸ‡¨πŸ‡³

Zhengzhou, Henan, China

The First Affiliated Hospital Of Nanchang University

πŸ‡¨πŸ‡³

Nanchang, Jiangxi, China

Bon Secours St. Francis Cancer Center

πŸ‡ΊπŸ‡Έ

Greenville, South Carolina, United States

Ochsner Clinic Foundation

πŸ‡ΊπŸ‡Έ

New Orleans, Louisiana, United States

Β© Copyright 2025. All Rights Reserved by MedPath