New hope for Hard-to-Treat myeloma: experimental drug enters human trials
NCT ID NCT06433947
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This early-stage trial tests a new drug called OPN-6602, alone or with a steroid, in 130 people whose multiple myeloma has returned or stopped responding to at least three prior treatments. The main goal is to check safety and find the right dose. It's too early to know if it will work, but researchers hope it may offer a new option for patients who have run out of standard therapies.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- OPN-6602 (a targeted drug) and dexamethasone (a steroid)
- What this could lead to
- If successful, this could lead to a new treatment option for people with multiple myeloma that has stopped responding to other therapies.
- What could go wrong
- This is an early Phase 1 trial with only 130 participants, focused mainly on safety. The drug may not work well or could have serious side effects.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Phase
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Phase 1
The first testing in people. Mainly checks safety and dose, usually in a small group.
- Participants
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About 130 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Aug 2024
- Expected to finish
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Jul 2026
An estimate. End dates often move.
- Lead sponsor
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A company
The lead sponsor is a pharmaceutical, biotech, or medical-device company.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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18 years and older
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
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 first dose of study drug; 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
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The places running it
12 sites. The list below names each one and where it is.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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A doctor treating you
A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.
Contacts and locations
Locations
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Banner MD Anderson
RECRUITINGGilbert, Arizona, 85234, United States
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Dana Farber Cancer Institute
RECRUITINGBoston, Massachusetts, 02215, United States
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Emory Winchip Cancer Center
RECRUITINGAtlanta, Georgia, 30322, United States
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Fred Hutchinson Cancer Center
RECRUITINGSeattle, Washington, 98109, United States
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Huntsman Cancer Center Institute University of Utah
RECRUITINGSalt Lake City, Utah, 84112, United States
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Karmanos Cancer Institute
RECRUITINGDetroit, Michigan, 48201, United States
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START Midwest
RECRUITINGGrand Rapids, Michigan, 49546, United States
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Stanford Cancer Institute
RECRUITINGStanford, California, 94305, United States
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UC San Diego Moores Cancer Center
RECRUITINGLa Jolla, California, 92093-0698, United States
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University of Kansas Clinical Research Center
RECRUITINGWestwood, Kansas, 66205, United States
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University of North Carolina Hospitals at Hillsborough
RECRUITINGChapel Hill, North Carolina, 27599, United States
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University of Rochester Medical Center
RECRUITINGRochester, New York, 14642, United States
More trials for these conditions
Other studies related to the condition(s) this trial covers.
- Can an antibody drug boost transplant results in relapsed myeloma?
- Engineered donor cells could outsmart relapsed myeloma
- Can a Triple-Drug cocktail tame resistant myeloma?
- Can a One-Two drug punch beat back Hard-to-Treat myeloma?
- CAR-T breakthroughs come with infection risks – new study aims to decode them
- Double-barreled CAR t therapy takes aim at hard-to-treat myeloma