Safety and Efficacy Study of OPC-415 in Patients With Relapsed and/or Refractory Multiple Myeloma
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The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Know the risks and potential benefits of clinical studies and talk to your health care provider before participating. Read our disclaimer for details. |
ClinicalTrials.gov Identifier: NCT04649073 |
Recruitment Status :
Recruiting
First Posted : December 2, 2020
Last Update Posted : April 22, 2022
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Condition or disease | Intervention/treatment | Phase |
---|---|---|
Multiple Myeloma (MM) | Biological: OPC-415 | Phase 1 Phase 2 |
Study Type : | Interventional (Clinical Trial) |
Estimated Enrollment : | 49 participants |
Allocation: | Non-Randomized |
Intervention Model: | Single Group Assignment |
Masking: | None (Open Label) |
Primary Purpose: | Treatment |
Official Title: | A Multicenter, Uncontrolled, Nonrandomized, Open-Label, Phase 1/2 Trial Investigating the Safety and Efficacy of OPC 415 in MMG49 Antigen-Positive Patients With Relapsed and/or Refractory Multiple Myeloma |
Actual Study Start Date : | February 18, 2021 |
Estimated Primary Completion Date : | January 2027 |
Estimated Study Completion Date : | January 2041 |

Arm | Intervention/treatment |
---|---|
Experimental: OPC-415 (up to 1×10^7cells/kg) |
Biological: OPC-415
OPC-415 (up to 1×10^7cells/kg) On 2 days |
- Phase1: Dose Limiting Toxicity [ Time Frame: Day1~Day28 ]
- Phase2: Response rate [ Time Frame: Day1~Day366 ]The proportion of subjects who achieved partial response or better outcomes by central assessment based on IMWG Uniform Response Criteria for Multiple Myeloma will be calculated.

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Ages Eligible for Study: | 20 Years to 80 Years (Adult, Older Adult) |
Sexes Eligible for Study: | All |
Accepts Healthy Volunteers: | No |
Inclusion Criteria:
- Patients aged between 20 and 80 (75 for the phase 1 part) years, both inclusive, at the time of consent
- Patients with a definitive diagnosis of active multiple myeloma
- Patients who have had 2 or more prior regimens (including all proteasome inhibitors, immunomodulators, and anti-CD38 antibody)
- Patients with relapsed and/or refractory Multiple Myeloma
- Patients who are positive for MMG49 antigen
- Patients with an Eastern Cooperative Oncology Group (ECOG) performance status (PS) score of 0 or 1. Those with an ECOG-PS score of 2 due solely to MM bone lesions can be enrolled
- Patients who are expected to survive for at least 3 months
Exclusion Criteria:
- Patients who are scheduled to receive high-dose chemotherapy in combination with autologous stem cell transplantation as the next treatment.
- Patients who have other active double/multiple cancers
- Patients on continuous and systemic (oral or intravenous) medication with corticosteroids or other immunosuppressive agents
- Patients with graft-versus-host disease that requires treatment.
- Patients who underwent a highly invasive and extensive surgical procedure within 2 weeks.
- Patients who previously underwent allogeneic stem cell transplantation or organ transplantation.
- Patients who underwent autologous stem cell transplantation within 90 days.
- Patients with systemic amyloidosis (except localized amyloidosis without organ derangement) or plasma cell leukemia.
- Patients with prior or current central nerve involvement in MM.
- Patients whose best ever response to MM treatment is PD.
- Patients who previously received gene therapy or cell therapy (except hematopoietic stem cell transplantation).
- Pregnant women, nursing mothers, or women with a positive pregnancy test.

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT04649073
Contact: Drug Information Center | +81-3-6361-7314 |
Japan | |
Tokai University Hospital | Recruiting |
Isehara-shi, Japan | |
National Hospital Organization Okayama Medical Center | Not yet recruiting |
Okayama-shi, Japan | |
Tohoku University Hospital | Recruiting |
Sendai-shi, Japan | |
Japanese Red Cross Medical Center | Recruiting |
Shibuya-ku, Japan | |
Osaka University Hospital | Recruiting |
Suita-shi, Japan |
Study Director: | Nobuhito Sanada | Otsuka Pharmaceutical Co., Ltd. |
Responsible Party: | Otsuka Pharmaceutical Co., Ltd. |
ClinicalTrials.gov Identifier: | NCT04649073 |
Other Study ID Numbers: |
415-102-00001 |
First Posted: | December 2, 2020 Key Record Dates |
Last Update Posted: | April 22, 2022 |
Last Verified: | April 2022 |
Individual Participant Data (IPD) Sharing Statement: | |
Plan to Share IPD: | No |
Plan Description: | :The focus of this study is a rare disease. |
Studies a U.S. FDA-regulated Drug Product: | No |
Studies a U.S. FDA-regulated Device Product: | No |
Multiple Myeloma Neoplasms, Plasma Cell Neoplasms by Histologic Type Neoplasms Hemostatic Disorders Vascular Diseases Cardiovascular Diseases |
Paraproteinemias Blood Protein Disorders Hematologic Diseases Hemorrhagic Disorders Lymphoproliferative Disorders Immunoproliferative Disorders Immune System Diseases |