Asciminib as Initial Therapy for Patients With Chronic Myeloid Leukemia in Chronic Phase

• ClinicalTrials.gov Identifier: NCT05143840
• Recruitment Status: Recruiting
• First Posted: December 3, 2021
• Last Update Posted: December 1, 2022
• Sponsor: Augusta University
• Collaborator: H. Jean Khoury Cure CML Consortium
• Information provided by (Responsible Party): Augusta University

Study Description

Brief Summary:

This study is a multicenter Phase 2, non-randomized, open-label single-group frontline study administering asciminib in patients with newly diagnosed Chronic Myeloid Leukemia-Chronic Phase (CML-CP). The aim of this study is to evaluate the efficacy and safety of asciminib in newly diagnosed CML-CP. Patients will receive asciminib orally twice daily. Response is determined by PCR (polymerase chain reaction) blood test during the study. Patients who have not achieved a response after 24 months of single agent asciminib will be offered the addition of nilotinib. Nilotinib will be started at 300 mg BID in addition to asciminib if indicated. Patients will discontinue study treatment if they experience disease progression, or unacceptable toxicity.

Condition or disease	Intervention/treatment	Phase
Chronic Myeloid Leukemia, Chronic Phase; Adult CML; Leukemia, Myeloid; Leukemia,Myeloid, Chronic	Drug: Asciminib; Drug: Ascimininb + Nilotinib	Phase 2

Detailed Description:

Asciminib is a potent allosteric inhibitor of BCR-ABL1 oncogene that confers resistance to tyrosine kinase inhibitors (TKIs). Asciminib has potential to combine with TKIs to prevent the emergence of BCR-ABL1 mutations, increasing the depth of molecular response in CML-CP patients. Anticipated enrollment is 50 subjects across sites.

Primary Objective:

To estimate the proportion of patients with previously untreated CML-CP attaining deep molecular response (PCR blood test).

Secondary Objectives:

1. To estimate the proportion of patients achieving molecular response at specific time points
2. To estimate the time to molecular response
3. To evaluate the duration of hematologic and molecular response to asciminib
4. To define the time to progression and overall survival for patients with CML in early CP treated with asciminib
5. To evaluate the safety profile of asciminib in patients with CML-CP
6. To evaluate the development of ABL mutations for patients with CML in early CP treated with asciminib
7. To analyze differences in response rates and in prognosis within different risk groups and patient characteristics
8. To evaluate patient-reported outcomes in patients with CML receiving asciminib
9. To investigate treatment-free remission after at least 2 years of sustained deep molecular remission for patients receiving single agent asciminib

Exploratory objectives:

1. To evaluate the safety and efficacy of concomitant use of nilotinib with asciminib in patients who have not achieved MR4.5.
2. To evaluate the rate of successful treatment discontinuation for patients using the combination of asciminib and nilotinib
3. Evaluate the role of Digital droplet PCR (ddPCR) in predicting TFR
4. Evaluating the correlation between the gene expression signature of patients and the chances of achieving MMR and DMR
5. Evaluate whether B, NK and T cells DNA mutation and RNA expression are relevant and whether they can predict response in patients with CML using single cell analysis.

Subjects must meet all inclusion criteria and none of the exclusion criteria of the study. No enrollment waivers will be granted. After successful screening, subjects will be enrolled and treatment will start within 7 days of enrollment. Eligible subjects will begin asciminib on cycle 1 day 1 of the trial. After 2 years, subjects will be offered the addition of taking nilotinib with asciminib if a molecular response is not met (PCR blood test).

Duration of each participant is expected to take approximately 5 years.

Regimen Description Study Drug Dose Route Schedule Cycle Length Asciminib 40 mg Oral Twice a day (BID) 4 weeks (28 days) Nilotinib 300 mg* Oral Twice a day (BID) 4 weeks (28 days)

*Nilotinib will be taken if indicated at a maximum dose of 300mg BID

Dose levels and dose modifications of the study drugs will be made per protocol.

Study Design

• Study Type: Interventional (Clinical Trial)
• Estimated Enrollment: 8 participants
• Allocation: N/A
• Intervention Model: Single Group Assignment
• Intervention Model Description: Single group frontline asciminib
• Masking: None (Open Label)
• Primary Purpose: Treatment
• Official Title: Asciminib as Initial Therapy for Patients With Chronic Myeloid Leukemia in Chronic Phase
• Actual Study Start Date: April 22, 2022
• Estimated Primary Completion Date: February 2025
• Estimated Study Completion Date: February 2027

Arms and Interventions

Arm

Intervention/treatment

Experimental: Asciminib; Asciminib 40mg taken orally twice a day starting cycle 1 day 1 for up to 24 months.

Drug: Asciminib; Potent tyrosine kinase inhibitor that displays anti-tumor activity by specifically targeting the ABL myristate-binding pocket (STAMP).; Other Name: ABL001; Drug: Ascimininb + Nilotinib; For subjects that do not achieve MR4.5 (molecular response) after 24 months of single-agent asciminib will be offered the addition of nilotinib 300mg, twice daily, with the goal of attaining MR4.5.

Outcome Measures

Primary Outcome Measures :

1. Primary Outcome Measure 1: Deep Molecular Response [ Time Frame: 24 months ]
   This measure is the number of subjects in deep molecular response (DMR) defined as breakpoint cluster region ABL proto-oncogene 1 (BCR-ABL1) <0.0032% International Standard (IS) by real-time quantitative polymerase chain reaction (RT-PCR).

Eligibility Criteria

• Ages Eligible for Study: 18 Years and older (Adult, Older Adult)
• Sexes Eligible for Study: All
• Accepts Healthy Volunteers: No

Criteria

Inclusion Criteria:

1. Age ≥18 years old
2. Willing and able to give informed consent
3. Newly diagnosed with CML in chronic phase within 6 months from confirmed diagnosis and have either the b3a2 (e14a2) or b2a2 (e13a2) variants that give rise to the p210 BCR-ABL protein. Subtype classification whether b3a2 (e14a2) or b2a2 (e13a2) is not required for study eligibility.
4. Minimal prior CML therapy including a TKI for less than 30 days.
5. ECOG performance status 0-2 (appendix 1)

6. Adequate organ function:

   1. AST and ALT < 3 times the institutional upper limit of normal
   2. Creatinine < 1.5 times the institutional upper limit of normal
   3. Total bilirubin < 1.5 times the institutional upper limit of normal or < 3.0 x the institutional upper limit of normal with Gilbert Syndrome (unless direct bilirubin is within normal limits)

7. Female patients must meet one of the following:

   1. Postmenopausal for at least one year before the screening visit,
   2. Surgically sterile
   3. If they are of childbearing potential, agree to practice two effective methods of contraception from the time of signing of the informed consent form through 90 days after the last dose of study drug,
   4. Must also adhere to the guidelines of any treatment-specific pregnancy prevention program, if applicable
   5. Agree to practice true abstinence when this is in line with the preferred and usual lifestyle of the subject. (Periodic abstinence [e.g., calendar, ovulation, symptothermal, postovulation methods] and withdrawal are not acceptable contraception methods.)

8. Male patients, even if surgically sterilized (i.e., status post vasectomy), must agree to one of the following:

   1. Practice effective barrier contraception during the entire study treatment period and through 90 days after the last study drug dose
   2. Must also adhere to the guidelines of any treatment-specific pregnancy prevention program, if applicable
   3. Agree to practice true abstinence when this is in line with the preferred and usual lifestyle of the subject. (Periodic abstinence [e.g., calendar, ovulation, symptothermal, postovulation methods] and withdrawal are not acceptable methods of contraception.)

Exclusion Criteria:

1. Patients with accelerated or blast phase CML (refer to appendix 4)
2. Active second malignancy requiring active treatment
3. History of recent (within 12 months) acute pancreatitis or chronic pancreatitis
4. Subjects who have previously received treatment with asciminib.
5. Subjects with PLT count < 50,000 mm3 or ANC of < 500 mm3 or Hemoglobin < 8 g/dL
6. Lipase > institutional upper limit of normal
7. Pregnant or lactating
8. Taking a strong inhibitors or inducers of CYP3A4 or CYP3A4 substrates with narrow therapeutic index (refer to appendix 6) at time of enrollment
9. Unable to comply with lab appointment schedule and PRO assessments
10. Another investigational drug within 4 weeks of enrollment
11. Any serious medical or psychiatric illness that could, in the investigator's opinion, interfere with the completion of treatment according to this protocol
12. Patient has undergone a prior allogeneic stem cell transplant
13. Screening 12-lead ECG showing a baseline corrected QT interval >480msec (patients with a pacemaker will still be eligible with QTc>500msec)

Contacts and Locations

Contacts

Contact: Kelly Jenkins, MSN, RN; 706-721-1206; kejenkins@augusta.edu

Contact: GCC Clinical Trials Office; 706-721-2505; Cancer_Center_Trials@augusta.edu

Locations

United States, Georgia

Georgia Cancer Center at Augusta University; Not yet recruiting

Augusta, Georgia, United States, 30912

Contact: Kelly Jenkins, MSN, RN 706-721-1206 kejenkins@augusta.edu

Contact 706-721-2505 Cancer_Center_Trials@augusta.edu

Principal Investigator: Jorge E. Cortes, MD

United States, New York

Roswell Park Comprehensive Cancer Center; Recruiting

Buffalo, New York, United States, 14263

Contact 716-845-7127 LeukResearch@roswellpark.org

United States, Wisconsin

Froedtert Hospital & the Medical College of Wisconsin; Recruiting

Milwaukee, Wisconsin, United States, 53226

Contact: Ehab Atallah, MD 414-805-4600 eatallah@mcw.edu

Sponsors and Collaborators

Augusta University

H. Jean Khoury Cure CML Consortium

More Information

• Responsible Party: Augusta University
• ClinicalTrials.gov Identifier: NCT05143840
• Other Study ID Numbers: HJKC3-0004; CABL001AUS06T ( Other Identifier: Novartis Study Identifier )
• First Posted: December 3, 2021
• Last Update Posted: December 1, 2022
• Last Verified: November 2022

• Studies a U.S. FDA-regulated Drug Product: Yes
• Studies a U.S. FDA-regulated Device Product: No

Keywords provided by Augusta University:

Chronic Myeloid Leukemia; Adult CML; tyrosine kinase inhibitors; H. Jean Khoury Cure CML Consortium; HJKC3-0004

Additional relevant MeSH terms:

Leukemia; Leukemia, Myeloid; Leukemia, Myelogenous, Chronic, BCR-ABL Positive; Neoplasms by Histologic Type; Neoplasms; Myeloproliferative Disorders; Bone Marrow Diseases; Hematologic Diseases