Study Stopped
The study was terminated after conducting an interim analysis of the available data where it became evident that the observed efficacy results were not in alignment with the initially set expectations.
A Study of H3B-8800 (RVT-2001) in Participants With Lower Risk Myelodysplastic Syndromes
Encore-MDS
An Open-label, Multicenter Phase 1 Trial to Evaluate the Safety, Pharmacokinetics and Pharmacodynamics of Splicing Modulator H3B-8800 for Subjects With Myelodysplastic Syndromes, Acute Myeloid Leukemia, and Chronic Myelomonocytic Leukemia
2 other identifiers
interventional
127
7 countries
49
Brief Summary
A Phase 1, an Open-label, Multicenter Phase 1 Trial to Evaluate the Safety, Pharmacokinetics and Pharmacodynamics of Splicing Modulator H3B-8800 (RVT-2001) for Subjects With Myelodysplastic Syndromes, Acute Myeloid Leukemia, and Chronic Myelomonocytic Leukemia
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for phase_1
Started Oct 2016
Longer than P75 for phase_1
49 active sites
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
Click on a node to explore related trials.
Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
July 20, 2016
CompletedFirst Posted
Study publicly available on registry
July 22, 2016
CompletedStudy Start
First participant enrolled
October 6, 2016
CompletedPrimary Completion
Last participant's last visit for primary outcome
February 13, 2024
CompletedStudy Completion
Last participant's last visit for all outcomes
February 13, 2024
CompletedFebruary 14, 2024
February 1, 2024
7.4 years
July 20, 2016
February 13, 2024
Conditions
Keywords
Outcome Measures
Primary Outcomes (2)
Number of Participants with Dose-limiting Toxicities (DLTs)
Escalation Cycle 1 (28 days)
Number of Participants with Treatment Emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs)
The type and frequency of AEs and SAEs using CTCAE v4.03, as well as changes in clinical laboratory values, ECG parameters, ophthalmologic examinations, and vital sign measurements.
From the first dose of study drug until 30 days after final dose of study drug (up to approximately 50 months)
Secondary Outcomes (10)
Area Under the Plasma Concentration-time Curve From Time 0 Through the Last Measurable Point (AUC0-t)
Up to Cycle 6 Day 15 (each cycle length=28 days)
Maximum Observed Plasma Concentration (Cmax)
Up to Cycle 6 Day 15 (each cycle length=28 days)
Time of Maximum Observed Plasma Concentration (Tmax)
Up to Cycle 6 Day 15 (each cycle length=28 days)
Number of Participants who Achieve Red Blood Cell (RBC) Transfusion Independence
Up to approximately 50 months
Number of Participants with Hematologic Improvement
Up to approximately 50 months
- +5 more secondary outcomes
Study Arms (3)
H3B-8800 (RVT-2001) Dose Escalation
EXPERIMENTALH3B-8800 Acute Myeloid Leukemia or High Risk Myelodysplastic Syndromes/ Low Risk Myelodysplastic Syndromes/ Chronic Myelomonocytic Leukemia.
H3B-8800 (RVT-2001) MDS Expansion
EXPERIMENTALTransfusion-dependent, lower-risk MDS subjects (very-low to intermediate risk categorization per IPSS-R) with missense mutations in SF3B1.
H3B-8800 (RVT-2001) Dose Optimization
EXPERIMENTALTransfusion-dependent, lower-risk MDS subjects (very-low to intermediate risk categorization per IPSS-R) with missense mutations in SF3B1, and who have not been exposed to HMA's or lenalidomide in a prior line of therapy.
Interventions
H3B-8800 (RVT-2001) orally at specified doses and schedules.
Eligibility Criteria
You may qualify if:
- Confirmed diagnosis of MDS, CMML, or AML.
- For the MDS Expansion cohort, participants must be lower-risk MDS, defined as low or intermediate-1 risk categorization per International Prognostic Scoring System (IPSS) criteria that carries a missense SF3B1 mutation.
- For the Dose Optimization cohort, participants must be transfusion-dependent, lower-risk MDS, defined as very-low to intermediate risk categorization per IPSS-R criteria that carries a missense SF3B1 mutation.
- Participants must meet the following criteria relevant to their specific diagnosis:
- A. Participants with higher-risk MDS/CMML must be intolerant of hypomethylating agents (HMAs) or not have responded to 4 treatment cycles of decitabine or 6 treatment cycles of azacitidine, or must have progressed at any point after initiation of an HMA.
- B. For the Dose Escalation portion, participants with lower-risk MDS/CMML must be transfusion-dependent for red blood cells or platelets.
- For the MDS expansion cohort, lower risk MDS participants must be RBC transfusion dependent according to IWG 2006 criteria and must also have failed erythropoiesis stimulating agents (ESA) or have serum erythropoietin (EPO) levels greater than (\>) 500 units per liter (U/L).
- C. For the Dose Optimization cohort, lower-risk MDS participants must be RBC transfusion-dependent at baseline defined as ≥3 RBC units (concentrates) in 16-weeks in at least 2 transfusion episodes prior to the first dose of H3B-8800 (RVT-2001) and must also have failed ESA or have serum EPO levels \> 500 U/L. Any ESA use should be discontinued ≥6 weeks prior to enrollment.
- D. Participants with AML must either refuse or not be considered candidates for intensive induction chemotherapy using consensus criteria for defining such participants.
- E. Participants with CMML must have been treated with at least one prior therapy (hydroxyurea or a hypomethylating agent \[HMA\]).
- Eastern Cooperative Oncology Group (ECOG) performance score of 0-2.
- For MDS expansion and Dose optimization cohorts - absolute neutrophil count (ANC) greater than or equal to (\>=) 500/ microliter (mcL) (0.5\*10\^9/L).
- For expansion and Dose optimization cohorts- platelet count \>50,000/mcL (50\*10\^9/L).
- For Dose-optimization cohort: No prior HMA or lenalidomide in participants with lower-risk MDS.
- Adequate baseline organ function.
You may not qualify if:
- Diagnosis of a core binding factor leukemia (t(8;21), t(16;16) or inv(16)). Diagnosis of acute promyelocytic leukemia (t(15;17))
- Participants are deemed candidate for hematopoietic stem cell transplants at the time of enrollment (for AML participants only).
- Known prior or current retinal or optic nerve disease (example, Retinitis Pigmentosa, diabetic retinopathy, optic neuritis) not stable for at least 6 months.
- History of clinically significant, uncorrected vitamin B12 or folate deficiency.
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (49)
Arizona Oncology Associates
Tucson, Arizona, 85711, United States
City of Hope
Duarte, California, 91010, United States
City of Hope
Irvine, California, 96218, United States
Rocky Mountain Cancer Center
Aurora, Colorado, 80012, United States
Mayo Clinic Jacksonville
Jacksonville, Florida, 32224, United States
University of Miami
Miami, Florida, 33136, United States
Massachusetts General Hospital
Boston, Massachusetts, 02114, United States
Beth Israel Deaconess Medical Center
Boston, Massachusetts, 02115, United States
Dana Farber Cancer Institute
Boston, Massachusetts, 02215, United States
Karmanos Cancer Institute
Detroit, Michigan, 48201, United States
Mayo Clinic
Rochester, Minnesota, 55905, United States
Oncology Associates of Oregon
Eugene, Oregon, 97401, United States
Texas Oncology
Austin, Texas, 78705, United States
MD Anderson Cancer Center
Houston, Texas, 77030, United States
Virginia Cancer Specialist
Fairfax, Virginia, 22301, United States
Algemeen Ziekenhuis Klina
Brasschaat, Belgium
AZ Sint-Jan Brugge Oostende AV
Bruges, Belgium
Universiteit Gent
Ghent, Belgium
University Hospitals Leuven
Leuven, Belgium
Institut Gustave Roussy
Villejuif, Val-de-Marne, 94805, France
CHU Amiens-Picardie
Amiens, France
Centre Hospitalier Universitaire d'Angers (CHU d'Angers)
Angers, France
Centre Hospitalier Universitaire (CHU) de Bordeaux
Bordeaux, France
Centre Hospitalier - Le Mans
Le Mans, France
Hôpital Claude Huriez
Lille, France
Centre Hospitalier Lyon Sud
Pierre-Bénite, France
Azienda Ospedaliera Universitaria di Bologna - Policlinico S. Orsola Malpighi
Bologna, Italy
Fondazione IRCCS Cà Granda Ospedale Policlinico Maggiore
Milan, Italy
Fondazione IRCCS Policlinico San Matteo
Pavia, Italy
IRCCS Istituto Clinico Humanitas Cancer Center
Rozzano, Italy
National Cancer Center
Gyeonggi-do, Goyang-si, South Korea
Daegu Catholic University Medical Center
Daegu, South Korea
Gachon University Gil Medical Center
Incheon, South Korea
Asan Medical Center
Seoul, South Korea
Hanyang University Seoul Hospital
Seoul, South Korea
Samsung Medical Center
Seoul, South Korea
Seoul National University Hospital
Seoul, South Korea
The Catholic University of Korea Seoul St. Mary's Hospital
Seoul, South Korea
Clinica Universidad de Navarra
Pamplona, Navarre, 31008, Spain
Hospital Universitario Valle de Hebrón
Barcelona, Spain
Hospital General Universitario Gregorio Marañon
Madrid, 28007, Spain
Hospital Universitario Fundación Jiménez Díaz
Madrid, Spain
Complejo Asistencial Universitario de Salamanca
Salamanca, Spain
Hospital Universitario y Politécnico La Fe de Valencia
Valencia, Spain
Changhua Christian Hospital
Changhua, Taiwan
Chang-Gung Memorial Hospital, Chiayi
Chiayi City, Taiwan
China Medical University Hospital
Taichung, Taiwan
National Cheng Kung University Hospital
Tainan, Taiwan
National Taiwan University Hospital
Taipei, Taiwan
Related Publications (1)
Foran JM, Sanz GF, Watts JM, Brunner AM, Fossard G, Della Porta MG, Tsai XC, Garcia-Manero G, Dimicoli-Salazar S, Fletcher L, Kim YJ, Font P, Alfonso-Pierola A, Alonso-Dominguez JM, Benton C, Hong J, Malcovati L, Mazure D, Lee JH, Yeh SP, Goursaud L, Barcellini W, Wu E, Corzo D, Kuida K, Stone RM. Phase 1 first-in-human dose-expansion study of the oral SF3B1 modulator H3B-8800 in lower-risk myelodysplastic syndrome. Leuk Res. 2025 Sep;156:107735. doi: 10.1016/j.leukres.2025.107735. Epub 2025 Jun 9.
PMID: 40651101DERIVED
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Study Officials
- STUDY DIRECTOR
Keisuke Kuida, MD, PhD
Hemavant Sciences
Study Design
- Study Type
- interventional
- Phase
- phase 1
- Allocation
- NON RANDOMIZED
- Masking
- NONE
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- INDUSTRY
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
July 20, 2016
First Posted
July 22, 2016
Study Start
October 6, 2016
Primary Completion
February 13, 2024
Study Completion
February 13, 2024
Last Updated
February 14, 2024
Record last verified: 2024-02