Study to Assess Safety and Tolerability of OPN-6602 in Subjects With Relapsed and/or Refractory Multiple Myeloma

NCT ID: NCT06433947

Last Updated: 2025-08-19

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

RECRUITING

Clinical Phase

PHASE1

Total Enrollment

130 participants

Study Classification

INTERVENTIONAL

Study Start Date

2024-08-22

Study Completion Date

2026-07-31

Brief Summary

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Phase 1b, open-label study evaluating the safety, tolerability, pharmacokinetics, preliminary antitumor activity, and pharmacodynamics of OPN-6602 monotherapy and in combination with dexamethasone in subjects with relapsed and/or refractory MM.

Detailed Description

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Conditions

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Relapsed Multiple Myeloma Refractory Multiple Myeloma

Study Design

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Allocation Method

NON_RANDOMIZED

Intervention Model

SINGLE_GROUP

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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Dose escalation monotherapy

Group Type EXPERIMENTAL

OPN-6602

Intervention Type DRUG

orally active, small molecule inhibitor of EP300 and CBP bromodomain; dosed daily

Dose escalation in combo with dexamethasone

Group Type EXPERIMENTAL

OPN-6602

Intervention Type DRUG

orally active, small molecule inhibitor of EP300 and CBP bromodomain; dosed daily

Dexamethasone

Intervention Type DRUG

Synthetic glucocorticoid; 40 mg Days 1, 8, 15 of each cycle

Dose expansion

Group Type EXPERIMENTAL

OPN-6602

Intervention Type DRUG

orally active, small molecule inhibitor of EP300 and CBP bromodomain; dosed daily

Interventions

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OPN-6602

orally active, small molecule inhibitor of EP300 and CBP bromodomain; dosed daily

Intervention Type DRUG

Dexamethasone

Synthetic glucocorticoid; 40 mg Days 1, 8, 15 of each cycle

Intervention Type DRUG

Eligibility Criteria

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Inclusion Criteria

* Confirmed diagnosis of multiple myeloma (MM)
* Relapsed or refractory to 3 or more different prior lines of therapy for MM that included immunomodulatory agents, proteosome inhibitors, and anti-CD38 antibody and not a candidate for or intolerant to established therapy known to provide clinical benefit
* Adequate hematologic, renal, liver, cardiac function

Exclusion Criteria

* Monoclonal gammopathy of undetermined significance (MGUS), smoldering myeloma, Waldenström's macroglobulinemia, or IgM myeloma
* Active plasma cell leukemia
* Polyneuropathy, organomegaly, endocrinopathy, monoclonal protein and skin changes (POEMS syndrome)
* Prior Stevens Johnson syndrome
* Localized radiation therapy to disease site(s) within 2 weeks of the first dose
* Prior autologous peripheral stem cell transplant or prior autologous bone marrow transplantation within \<90 days of the first dose of study drug
* Prior allogeneic stem cell transplantation or solid organ transplantation within 12 months of screening; subjects receiving immunosuppressive medication for active graft vs host disease will be excluded.
* Prior chemotherapy, targeted anticancer or radiation therapy within 2 weeks prior to first dose of study drug
* Concomitant high-dose corticosteroids (except subjects on chronic steroids given for disorders other than myeloma)
* Known central nervous system involvement by multiple myeloma
* Active known second malignancy with exception of adequately treated basal cell carcinoma, squamous cell carcinoma of the skin, or in situ cervical cancer; adequately treated Stage 1 cancer from which the subject is currently in remission and has been in remission for ≥2 years; low-risk prostate cancer with a Gleason score \<7 and a PSA level \<10 ng/mL; any other cancer from which the subject has been disease-free for ≥3 years
* Ongoing systemic infection requiring parenteral treatment
* Poorly controlled Type 2 diabetes
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Opna Bio LLC

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Locations

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Banner MD Anderson

Gilbert, Arizona, United States

Site Status RECRUITING

Stanford Cancer Institute

Stanford, California, United States

Site Status RECRUITING

Emory Winchip Cancer Center

Atlanta, Georgia, United States

Site Status RECRUITING

University of Kansas Clinical Research Center

Westwood, Kansas, United States

Site Status RECRUITING

Dana Farber Cancer Institute

Boston, Massachusetts, United States

Site Status RECRUITING

Karmanos Cancer Institute

Detroit, Michigan, United States

Site Status RECRUITING

START Midwest

Grand Rapids, Michigan, United States

Site Status RECRUITING

University of Rochester Medical Center

Rochester, New York, United States

Site Status RECRUITING

Huntsman Cancer Center Institute University of Utah

Salt Lake City, Utah, United States

Site Status RECRUITING

Fred Hutchinson Cancer Center

Seattle, Washington, United States

Site Status RECRUITING

Countries

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United States

Facility Contacts

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Brett Post

Role: primary

480-256-3116

Caitlyn Minas

Role: primary

650-723-0646

Megan Marshall

Role: primary

404-778-5204

Nurse Navigation

Role: primary

913-945-7552

Yuxin Liu

Role: primary

877-422-3324

Kate Staub

Role: primary

313-576-8736

Julie Burns

Role: primary

616-954-5559

Liu

Role: primary

585-275-5823

Collind Boyington

Role: primary

801-587-4779

Danai Dima

Role: primary

855-557-0555

Other Identifiers

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OPN6602-C01

Identifier Type: -

Identifier Source: org_study_id

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