New hope for Hard-to-Treat myeloma: experimental drug surzetoclax enters human trials
NCT ID NCT06953960
First seen Jun 27, 2026 · Last updated Sep 15, 2026 · Updated 8 times
Summary
This study is testing an experimental drug called surzetoclax, alone or combined with other cancer drugs, in about 130 adults with multiple myeloma that has returned or stopped responding to prior treatments. The goal is to find the safest dose and see if it can shrink or control the cancer. Participants will receive the drug as pills or injections and be closely monitored for side effects and disease changes over about 4.5 years.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- surzetoclax (ABBV-453)
- 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 trial (Phase 1/2) with a small number of participants, so the drug may not prove effective or may have unexpected side effects. The study also involves multiple drug combinations, making it harder to isolate the benefit of surzetoclax alone.
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 1/2
Runs two stages together: safety and dose first, then whether the treatment works.
- Participants
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About 325 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Jul 2025
- Expected to finish
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Dec 2030
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: * Documented diagnosis of multiple myeloma (MM) based on standard international myeloma working group (IMWG) diagnostic criteria. * All participants must have measurable disease per central laboratory with at least 1 of the following assessed within 28 days prior to enrollment: * Serum M-protein \>= 0.5 g/dL (\>= 5g/L); OR * Urine M-protein \>= 200 mg/24 hours; OR * For participants without measurable serum and urine M-protein: Serum free light chain (sFLC) \>= 10 mg/dL (100 mg/L), provided sFLC ratio is abnormal. * B-cell lymphoma (BCL)-2 inhibitor treatment naïve. * t(11;14) positive status and/or BCL2 high status. * Must have confirmed diagnosis of relapsed or refractory (R/R) multiple myeloma (MM) with documented evidence of progression during or after the participant's last treatment regimen, based on the investigator's determination of the international myeloma working group (IMWG) 2016 criteria. Exclusion Criteria: * Major surgery within 4 weeks of study treatment or planned during study participation. * Recent infection requiring systemic treatment that was completed \<= 14 days before first dose of study treatment and/or uncontrolled active systemic infection.
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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
50 sites in 12 countries. 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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Atrium Health Levine Cancer Institute /ID# 271510
RECRUITINGCharlotte, North Carolina, 28204, United States
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CHU de Liege /ID# 271430
RECRUITINGLiège, 4000, Belgium
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CHU de Montpellier - Hopital Saint Eloi /ID# 275570
RECRUITINGMontpellier, Herault, 34295, France
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Calvary Mater Newcastle /ID# 272498
RECRUITINGWaratah, New South Wales, 2298, Australia
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Centre Hospitalier Universitaire de Nantes, Hotel Dieu -HME /ID# 275562
RECRUITINGNantes, Pays de la Loire Region, 44000, France
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Centre Hospitalier Universitaire de Poitiers /ID# 275563
RECRUITINGPoitiers, New Aquitaine, 86021, France
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Dana-Farber Cancer Institute /ID# 271846
RECRUITINGBoston, Massachusetts, 02215, United States
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Epworth HealthCare /ID# 272497
RECRUITINGRichmond, Victoria, 3121, Australia
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Fondazione IRCCS Ca Granda Ospedale Maggiore Policlinico /ID# 276306
RECRUITINGMilan, 20122, Italy
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Hadassah Medical Center-Hebrew University /ID# 271253
RECRUITINGJerusalem, 91120, Israel
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Hopital Universitaire Necker Enfants Malades /ID# 275571
RECRUITINGParis, Île-de-France Region, 75015, France
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Huntsman Cancer Institute /ID# 271618
RECRUITINGSalt Lake City, Utah, 84112, United States
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IUCT Oncopole /ID# 275568
RECRUITINGToulouse, Occitanie, 31059, France
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Instituto Portugues de Oncologia de Lisboa Francisco Gentil /ID# 275873
RECRUITINGLisbon, Lisbon District, 1099-023, Portugal
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Instituto Portugues de Oncologia do Porto Francisco Gentil /ID# 275851
RECRUITINGPorto, 4200-072, Portugal
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Japanese Red Cross Medical Center /ID# 272018
RECRUITINGShibuya-ku, Tokyo, 150-8935, Japan
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Karolinska University Hospital Solna /ID# 271674
RECRUITINGSolna, Stockholm County, 171 64, Sweden
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Klinikum der Universitaet Muenchen Grosshadern /ID# 276658
RECRUITINGMunich, Bavaria, 81337, Germany
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Liverpool Hospital /ID# 272002
RECRUITINGLiverpool, New South Wales, 2170, Australia
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Memorial Sloan Kettering Cancer Center - New York - York Avenue /ID# 271214
RECRUITINGNew York, New York, 10065, United States
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Nagoya City University Hospital /ID# 271427
RECRUITINGNagoya, Aichi-ken, 467-8602, Japan
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Narodowy Instytut Onkologii Im. Marii Sklodowskiej-Curie Panstwowy Instytut Bada /ID# 276263
RECRUITINGWarsaw, Masovian Voivodeship, 02-781, Poland
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Northwest Medical Specialties Tacoma /ID# 272506
RECRUITINGTacoma, Washington, 98405, United States
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Oregon Health and Science University /ID# 272282
RECRUITINGPortland, Oregon, 97239, United States
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Rabin Medical Center. /ID# 272073
RECRUITINGPetah Tikva, Central District, 4941492, Israel
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Rambam Health Care Campus- Haifa /ID# 271256
RECRUITINGHaifa, 3109601, Israel
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Sahlgrenska Universitetssjukhuset /ID# 272448
RECRUITINGGothenburg, Västra Götaland County, 413 46, Sweden
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Smilow Cancer Center At Yale-New Haven /ID# 272447
RECRUITINGNew Haven, Connecticut, 06511, United States
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Sodra Alvsborgs sjukhus /ID# 271822
RECRUITINGBorås, Västra Götaland County, 501 82, Sweden
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St Vincent's Hospital - Melbourne /ID# 271997
RECRUITINGFitzroy, Victoria, 3065, Australia
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Tel Aviv Sourasky Medical Center /ID# 271252
RECRUITINGTel Aviv, Tel Aviv, 6423906, Israel
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The Chaim Sheba Medical Center /ID# 271251
RECRUITINGRamat Gan, Tel Aviv, 5265601, Israel
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The Christie NHS Foundation Trust - Christie Hospital /ID# 276276
RECRUITINGManchester, M20 4BX, United Kingdom
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The Jikei University Hospital /ID# 272091
RECRUITINGTokyo, 105-8461, Japan
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The University of Osaka Hospital /ID# 271636
RECRUITINGSuita-shi, Osaka, 565-0871, Japan
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UZ Gent /ID# 271432
RECRUITINGGhent, Oost-Vlaanderen, 9000, Belgium
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Unidade Local de Saude de Braga, EPE /ID# 275853
RECRUITINGBraga, 4710-243, Portugal
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Universitaetsklinikum Hamburg-Eppendorf /ID# 275803
RECRUITINGHamburg, 20246, Germany
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Universitaetsklinikum Heidelberg /ID# 275598
RECRUITINGHeidelberg, Baden-Wurttemberg, 69120, Germany
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Universitaetsklinikum Wuerzburg /ID# 276657
RECRUITINGWürzburg, Bavaria, 97080, Germany
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Universitair Ziekenhuis Leuven /ID# 272382
RECRUITINGLeuven, Vlaams-Brabant, 3000, Belgium
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University Hospital Kyoto Prefectural University of Medicine /ID# 271911
RECRUITINGKyoto, Kyoto, 602-8566, Japan
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University of Michigan Health System - Ann Arbor /ID# 271536
RECRUITINGAnn Arbor, Michigan, 48109, United States
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University of North Carolina at Chapel Hill /ID# 272454
RECRUITINGChapel Hill, North Carolina, 27514, United States
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University of Southern California /ID# 272414
RECRUITINGLos Angeles, California, 90033, United States
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University of Texas - Southwestern Medical Center /ID# 271914
RECRUITINGDallas, Texas, 75235, United States
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Uniwersytecki Szpital Kliniczny Nr 1 W Lublinie /ID# 276052
RECRUITINGLublin, Lublin Voivodeship, 20-081, Poland
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Uniwersytecki Szpital Kliniczny Nr 4 w Lublinie /ID# 276352
RECRUITINGLublin, Lublin Voivodeship, 20-090, Poland
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Uniwersytecki Szpital Kliniczny W Poznaniu - Przybyszewskiego /ID# 276237
RECRUITINGPoznan, Greater Poland Voivodeship, 60-355, Poland
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Wake Forest Baptist Health /ID# 271294
RECRUITINGWinston-Salem, North Carolina, 27103, United States
More trials for these conditions
Other studies related to the condition(s) this trial covers.
- Cheap blood count ratios eyed as window into Myeloma's inflammatory grip
- Can a t-cell engager rescue myeloma that outsmarted CAR-T?
- Can myeloma treatment work without steroids?
- Double-Drug attack on Hard-to-Treat lymphomas
- Banking blood and bone marrow to decode plasma cell disorders
- Which scan sees hidden myeloma better: PET or MRI?