A Study of CLN-619 (Anti-MICA/MICB Antibody) in Patients With Relapsed and Refractory Multiple Myeloma

Multiple Myeloma Clinical Trial

Official title:

A Phase 1b, Multicenter, Open-Label, Study to Investigate the Safety and Efficacy of CLN-619 (Anti-MICA/MICB Antibody) in Patients With Relapsed and Refractory Multiple Myeloma

Clinical Trial Details — Status: Not yet recruiting

Administrative data

• NCT number: NCT06381141
• Other study ID #: CLN-619-002
• Status: Not yet recruiting
• Phase: Phase 1
• Start date: September 2024
• Est. completion date: March 2027

Study information

• Verified date: April 2024
• Source: Cullinan Therapeutics Inc.
• Contact: Timna Serino
• Phone: +1 617 410 4650
• Email: ClinOps[@]cullinantx.com
• Is FDA regulated: No
• Study type: Interventional

Clinical Trial Summary

A Phase 1b, Multicenter, Open-Label, Study to Investigate the Safety and Efficacy of CLN-619 (anti-MICA/MICB Antibody) in Patients with Relapsed and Refractory Multiple Myeloma

Recruitment information / eligibility

• Status: Not yet recruiting
• Enrollment: 30
• Est. completion date: March 2027
• Est. primary completion date: September 2026
• Accepts healthy volunteers: No
• Gender: All
• Age group: 18 Years and older

Eligibility

Inclusion Criteria:

1. Aged = 18 years at the time of signing the ICF.

2. Willing and able to give written informed consent and adhere to protocol requirements.

3. Patient has a history of multiple myeloma with relapsed and refractory disease as defined by the protocol.

4. Patients must have measurable disease (as determined by the local laboratory) as defined by the protocol.

5. Performance status of 0 to 2 based on the Eastern Cooperative Oncology Group (ECOG) performance scale.

6. Estimated life expectancy of 12 weeks or longer.

7. Prior palliative radiotherapy must have been completed at least 14 days prior to dosing on Cycle 1 Day 1.

8. Toxicities related to prior study therapy should have resolved to Grade 1 or less according to criteria of NCI CTCAE v5.0, except for alopecia. Patients with chronic but stable Grade 2 toxicities may be allowed to enroll after an agreement between the Investigator and Sponsor.

9. Have adequate liver and kidney function and hematological parameters within a normal range as defined by the protocol.

Exclusion Criteria:

1. Patient has symptomatic central nervous system involvement of MM.

2. Patient has nonsecretory MM, plasma cell leukemia, Waldenstrom's macroglobulinemia, POEMS syndrome (polyneuropathy, organomegaly, endocrinopathy, monoclonal protein, and skin changes), or amyloidosis.

3. Patient had a prior autologous stem cell transplant = 3 months prior to first dose of study drug on Cycle 1 Day 1.

4. Patient had a prior allogeneic stem cell transplant with either standard or reduced intensity conditioning = 6 months prior first dose of study drug on Cycle 1 Day 1 or is on systemic immunosuppression for graft-versus-host disease.

5. Patients with concomitant second malignancies (Except adequately treated non-melanomatous skin cancers, ductal carcinoma in situ, superficial bladder cancer, prostate cancer, Grade 1 stage 1A/1B endometrioid endometrial cancer or cervical cancer in situ) are excluded unless in complete remission three years prior to study entry, and no additional therapy is required or anticipated to be required during study participation.

6. Patients with any active autoimmune disease or a history of known or suspected autoimmune disease, or history of a syndrome that requires systemic corticosteroids treatment or immunosuppressive medications, except for patients with vitiligo, resolved childhood asthma/atopy or autoimmune thyroid disorders on stable thyroid hormone supplementation.

7. A serious uncontrolled medical disorder that would impair the ability of the patient to receive protocol therapy or whose control may be jeopardized by the complications of this therapy.

8. Treatment with systemic antiviral, antibacterial or antifungal agents for acute infection within = 7 days of first dose of study drug on Cycle 1 Day 1.

9. Patient has active peripheral neuropathy or neuropathic pain Grade 2 or higher, as defined by the NCI-CTCAE v5.0.

10. Diagnosed with HIV, Hepatitis B, or Hepatitis C infection.

11. Treatment with non-oncology vaccines for the control of infectious diseases (i.e., HPV vaccine) within 28 days of first dose of study drug on Cycle 1 Day 1.

12. Active SARS-CoV-2 infection based on positive SARS-CoV-2 test within 4 weeks prior to enrollment or patients with suspected active infection based on clinical features or pending results.

13. Has received immunosuppressive medications including but not limited to CellCept, methotrexate, infliximab, anakinra, tocilizumab, cyclosporine, or corticosteroids (= 10 mg/day of prednisone or equivalent), within 28 days of first dose of study drug on Cycle 1 Day 1.

14. Patient has history of drug-related anaphylactic reactions to any components of CLN-619. History of Grade 4 anaphylactic reaction to any monoclonal antibody therapy.

15. Certain treatment with investigational agents and other anti-neoplastic therapy as defined by the protocol

16. Female of child-bearing potential (FOCBP) who is pregnant or breast-feeding, plans to become pregnant within 120 days of last study drug administration or declines to use an acceptable method to prevent pregnancy during study treatment and for 120 days after the last dose of study drug administration.

17. Male patients who plans to father a child or donate sperm within 120 days or 5 half-lives of CLN-619, whichever comes later, of last study drug administration, or who has a partner who is a FOCBP, and declines to use an acceptable method to prevent pregnancy during study treatment and for 120 days or 5 half-lives of CLN-619, whichever comes later, after the last dose of study drug administration.

Related Conditions & MeSH terms

• Multiple Myeloma
• Neoplasms, Plasma Cell

Intervention

Drug:
• CLN-619
Anti-MICA/MICB monoclonal antibody

Locations

Country	Name	City	State
n/a

Sponsors (1)

Lead Sponsor	Collaborator
Cullinan Therapeutics Inc.

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	Proportion of participants reporting Adverse Events (AEs) and Serious Adverse Events (SAEs)	Incidence of AEs and SAEs using MedDRA	baseline through 3-week treatment period
Primary	Changes in Eastern Cooperative Oncology Group (ECOG) performance	ECOG Scores are a functional scale ranging from 0 (Fully active, able to carry out all pre-disease activities without restrictions) to 5 (Death)	Up to 2 years
Primary	Incidence of Dose-Limiting toxicity (DLTs)	Maximum Tolerated Dose (MTD) is reached if 2 or more patients experience a DLT at a dose level	up to 2 years
Primary	Best Overall Response (BOR) per patient	The best response defined by the International Myeloma Working Group (IMWG) criteria recorded throughout the study including unscheduled assessments	up to 2 years
Primary	Overall Response Rate (ORR)	The proportion of patients who achieve a partial response or better (e.g., Partial Response (PR), Very Good Partial Response (VGPR), Complete Response (CR) or stringent Complete Response (sCR), according to IMWG response criteria	up to 2 years
Primary	Duration of Response (DoR)	The time from the earliest date of documented response to the first documented disease progression or death, whichever occurs first.	up to 2 years
Primary	Clinical Benefit Rate (CBR)	The proportion of patients with a best overall response of CR, PR and stable disease (SD), according to IMWG response criteria	up to 2 years
Primary	Progression Free Survival (PFS)	The time from date of first dose until the earliest date of disease progression, or death from any cause, whichever occurs first.	up to 2 years
Primary	Overall Survival (OS)	Time from the date of first dose to date of death due to any cause.	up to 2 years