New pill shows promise for Hard-to-Treat blood cancers
NCT ID NCT04278768
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study tests an oral drug called emavusertib (CA-4948) in adults with acute myeloid leukemia (AML) or a high-risk bone marrow disorder (MDS) that have not responded to or returned after prior treatment. The goal is to find the safest and most effective dose and to see if the drug can shrink or control the cancer. Participants must have specific genetic mutations (FLT3, SF3B1, or U2AF1) and have had no more than two prior treatments.
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
-
Phase 1/2
Runs two stages together: safety and dose first, then whether the treatment works.
- Participants
-
About 366 people
The number the study aims to enrol. It can still change while the study runs.
- Started
-
Jul 2020
- Expected to finish
-
Apr 2026
An estimate. End dates often move.
- Lead sponsor
-
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
-
18 years and older
- Sex
-
Anyone
- Healthy volunteers
-
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: 1. Males and females ≥18 years of age 2. Life expectancy of at least 3 months 3. Eastern Cooperative Oncology Group (ECOG) Performance Status of ≤1 4. Cytomorphology based confirmed diagnosis of MDS or AML (as per World Health Organisation \[WHO\] 2016 classification) with the following characteristics. Phase 1 Dose Escalation (Monotherapy) • AML (primary or secondary, including treatment-related) after failing at least 1 standard treatment (may include chemotherapy, re induction therapy or stem cell transplantation). OR • Higher-risk R/R MDS that are considered resistant/refractory following at least 2 to 3 cycles of hypomethylating agent (HMA) or evidence of early progression Phase 2a Dose Expansion (Monotherapy) Patients with: * R/R AMLwith FLT3 mutations who have been previously treated with a FLT3 inhibitor * R/R AML with spliceosome mutations of SF3B1 or U2AF1 * R/R hrMDS (IPSS-R score \> 3.5) with spliceosome mutations of SF3B1 or U2AF1 * Number of prior treatments: 1 or 2 5. Acceptable organ function at screening 6. Ability to swallow and retain oral medications 7. Negative serum pregnancy test in women of childbearing potential 8. Women of childbearing potential and men who partner with a woman of childbearing potential must agree to use highly effective contraceptive methods for the duration of the study and for 180 days after the last dose of emavusertib 9. Willing and able to provide written informed consent and comply with the requirements of the trial 10. Able to undergo serial bone marrow sampling and peripheral blood sampling Exclusion Criteria: 1. Diagnosed with acute promyelocytic leukemia (APL, M3) 2. Has known active central nervous system (CNS) leukemia 3. Allogeneic hematopoietic stem cell transplant (Allo-HSCT) within 60 days of the first dose of emavusertib, or clinically significant graft-versus-host disease (GVHD) requiring ongoing up titration of immunosuppressive medications prior to start of emavusertib 4. Chronic myeloid leukemia (CML) 5. Any prior systemic anti-cancer treatment such as chemotherapy, immunomodulatory drug therapy, etc., received within 3 weeks (or 5 half-lives) prior to start of emavusertib. Localized radiation or surgical resection of skin cancers allowed. 6. Use of any investigational agent within 3 weeks or 5 half-lives, whichever is shorter, prior to start of emavusertib 7. Presence of an acute or chronic toxicity resulting from prior anti-cancer therapy, with the exception of alopecia that has not resolved to Grade ≤ 1 within 7 days prior to start of emavusertib. 8. Known allergy or hypersensitivity to any component of the formulation of emavusertib 9. Major surgery, other than diagnostic surgery, \<28 days from the start of emavusertib; minor surgery \<14 days from the start of emavusertib 10. Patients with active advanced malignant solid tumors 11. Known to be human immunodeficiency virus (HIV) positive or have an acquired immunodeficiency syndrome-related illness 12. Hepatitis B virus (HBV) deoxyribonucleic acid (DNA) positive or Hepatitis C virus (HCV) infection \<6 months prior to start of emavusertib unless viral load is undetectable, or HCV with cirrhosis 13. Uncontrolled or severe cardiovascular disease including myocardial infarction or unstable angina within 6 months prior to CA-4948, New York Heart Association Class II or greater congestive heart failure, or left ventricular ejection fraction \< 50% by echocardiogram or multi-gated acquisition scan, serious arrhythmias uncontrolled on treatment, clinically significant pericardial disease, cardiac amyloidosis, congenital long QT syndrome, or QTc with Fridericia's correction (QTcF) that is unmeasurable or \> 450 milliseconds (msec) on Screening electrocardiogram (ECG) 14. Gastrointestinal disease or disorder that could interfere with the swallowing, oral absorption, or tolerance of emavusertib 15. Pregnant or lactating 16. Systemic fungal, bacterial, viral, or other infection that is not controlled 17. Any other severe, acute, or chronic medical, psychiatric or social condition, or laboratory abnormality that may increase the risk of trial participation or emavusertib administration
Get updates
Get notified about this study
Sign up to get updates when this study changes or when new studies for Acute myelogenous leukemia are added.
By submitting, you agree to our Terms of use
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.
-
The places running it
32 sites in 8 countries. The list below names each one and where it is.
-
The official record
The full official record for this study. This one lists no contact details, but it is the first place any would appear.
-
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
-
APHP - Hopital Saint Louis
Paris, 75475, France
-
APHP - Sorbonne Universite
Paris, 75012, France
-
Albert Einstein Medical College
The Bronx, New York, 10461, United States
-
Azienda Ospedaliera Santa Croce e Carle
Cuneo, Italy
-
Dana Farber Cancer Institute
Boston, Massachusetts, 02215, United States
-
Edith Wolfson Medical Center
Holon, 5822012, Israel
-
Hadassah University MC
Jerusalem, 9112001, Israel
-
Hospital Universitario Virgen del Rocio
Seville, Spain
-
Hospital Universitaro del a Princesa
Madrid, 28006, Spain
-
Hospital de la Santa Creu I Sant Pau (Neuvo Hospital)
Barcelona, Spain
-
Instituto Romagnolo per lo Studio dei Tumori "Dino Amadori"
Meldola, Italy
-
Karmanos Cancer Institute
Detroit, Michigan, 48201, United States
-
Klinikum rechts der Isar der Technischen Universitat Munchen
München, 81675, Germany
-
MD Anderson Cancer Center Madrid
Madrid, Spain
-
Marien Hospital Dusseldorf; Klinik fur Onkologie und Hamatologie, Palliativmedizin
Düsseldorf, 40479, Germany
-
Moffitt Cancer Center
Tampa, Florida, 33612, United States
-
Northwestern Memorial Hospital
Chicago, Illinois, 60611, United States
-
Novant Health Hematology - Forsyth
Winston-Salem, North Carolina, 27103, United States
-
Oncology Hematology West, PC dba Nebraska Cancer Specialists
Omaha, Nebraska, 68130, United States
-
Service d'hématologie clinique CHU de Nice
Nice, 6200, France
-
Soroka University MC
Beersheba, 84100, Israel
-
The Ohio State University Wexner Medical Center - James Cancer Hospital
Columbus, Ohio, 43210, United States
-
The University of Texas MD Anderson Cancer Center
Houston, Texas, 77030, United States
-
Universitatsklinikum Leipzig; Medizinische Klinik und Poliklinik I
Leipzig, 04103, Germany
-
Universitatsklinikum Munster
Münster, 48149, Germany
-
University Hospital in Krakow
Krakow, 31 501, Poland
-
University of Chicago Medical Center
Chicago, Illinois, 60637, United States
-
University of Rochester Medical Center
Rochester, New York, 14642, United States
-
Universitätsklinikum Hamburg-Eppendorf (UKE)
Hamburg, 20246, Germany
-
Uniwersyteckie Centrum Kliniczne Osrodek Badan Klinicznych Wczesnych Faz
Gdansk, 80-214, Poland
-
Vseobecna Fakultni nemocnice v Praze
Prague, 12 808, Czechia
-
Winship Cancer Institute
Atlanta, Georgia, 30322, United States
More trials for these conditions
Other studies related to the condition(s) this trial covers.
- Can a p53-Targeting drug boost chemotherapy in Hard-to-Treat blood cancers?
- Can a Platelet-Boosting drug help control a rare bone marrow disorder?
- Tweaking donor cells may shield older transplant patients from a dangerous complication
- Can a drug and donor cells stop leukemia from returning after transplant?
- Can a calming drug make cord blood transplants safer?
- Can a Nine-Week group program help blood cancer patients grow through trauma?