A Phase 1/2 interventional study of Nusivertib and Ruxolitinib in Myelofibrosis, sponsored by Sumitomo Pharma America, Inc.. Recruiting at 91 sites in 10 countries. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2026-10-02.
Sponsored by Sumitomo Pharma America, Inc. (part of Sumitomo Pharma Co., Ltd.) · Phase 1/2, Interventional, and Treatment
This study is a Phase 1/2, multicenter, dose-escalation, open-label trial to assess safety, tolerability, pharmacokinetics and pharmacodynamics of nuvisertib (TP-3654) in patients with intermediate or high-risk primary or secondary MF.
Arm 1 will enroll patients who have been previously treated and failed on a JAK inhibitor or ineligible to receive treatment with a JAK inhibitor.
Arm 2 will enroll patients who are on a stable dose of ruxolitinib, but who have either lost response or had a suboptimal or plateau in response.
Arm 3 will enroll patients who have been previously treated with a JAK inhibitor (except momelotinib)
625 studies on the registry are indexed under Primary Myelofibrosis; 124 are open to participants now.
This study's planned enrollment of 240 is above the median of 43 across 489 interventional studies indexed under Primary Myelofibrosis.
Browse Primary Myelofibrosis studies →Sumitomo Pharma America, Inc. is the lead sponsor of 181 studies on the registry; 5 are open to participants now.
Of its 33 completed or terminated interventional studies of FDA-regulated products, 21 (64%) have results posted.
First submitted after Sumitomo Pharma America, Inc. became part of Sumitomo Pharma Co., Ltd..
Counted across the registry records on this site, refreshed daily.
Patients must meet all of the following inclusion criteria to be eligible:
Nuvisertib (TP-3654) Monotherapy Arm:
Nuvisertib (TP-3654) + Ruxolitinib Arm:
Nuvisertib (TP-3654) + Momelotinib Arm
Patients meeting any one of these exclusion criteria will be prohibited from participating in this study:
Nuvisertib (TP-3654) Monotherapy Arm:
Nuvisertib (TP-3654) + Ruxolitinib Arm:
Nuvisertib (TP-3654) + Momelotinib Arm:
Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Relapsed: the illness came back after treatment had worked. Refractory: it did not respond to treatment, or stopped responding while still on it.
Blood cells that help blood clot. Too few raises the risk of bleeding and bruising. A usual adult range is about 150–400 × 10⁹/L (150,000–400,000 per µL); each lab has its own reference range.
The number of neutrophils, white blood cells that help fight infection, in a given amount of blood. Too few raises the risk of infection.
It is a count, not a percentage of the white cells. Limits are written in units that mean the same: ≥ 1.5 × 10⁹/L is ≥ 1,500 per mm³ (µL). Each lab has its own reference range.
A scale of how much an illness limits everyday activity. For people being assessed to join a study, scores run from 0 (fully active) to 4; lower is more active.
Studies most often ask for 0–1 or 0–2. Your doctor gives the score; the WHO scale uses the same steps. The full scale also has 5, which records death.
The study doctor’s estimate of how long someone is likely to live. Criteria use it so that people can stay in the study long enough for it to answer its question.
The protein in red blood cells that carries oxygen. A low level is anaemia, which can cause tiredness and breathlessness. Measured in g/dL or g/L (9 g/dL is 90 g/L).
Stem cell (bone marrow) transplants. Allogeneic uses cells from a donor; autologous uses your own cells, collected earlier and given back.
The share of blood the heart’s main pumping chamber (the left ventricle) pushes out with each beat, measured by an echocardiogram (heart ultrasound) or a MUGA scan. About 50–70% is normal.
On an ECG, the QT interval is the time the heart’s lower chambers take to activate electrically and recover in each beat. QTc is that time adjusted for heart rate (QTcF by Fridericia’s formula, QTcB by Bazett’s). Some medicines lengthen it, and a long QTc can raise the risk of a dangerous heart rhythm.
The study may name a correction formula and a limit in milliseconds, often around 450–480.
Malignancy means cancer. Criteria about another or earlier malignancy ask whether you have had a different cancer, usually within a set number of years.
Some are commonly allowed, such as treated skin cancers other than melanoma and early cancers removed completely — check the exceptions this study lists.
A drug or device being studied in a clinical trial.
It may be new, or already approved and being studied for another use, dose or form. Criteria often leave out people who took part in another study of one within a recent period, commonly 30 days or five half-lives.
A score of how well the liver works in people with liver disease such as cirrhosis: class A is mild, B moderate and C severe.
Hepatitis B is a virus that infects the liver. These are separate tests: HBsAg positive usually means a current infection (a recent vaccination can briefly cause it too); total anti-HBc (HBcAb) positive means an infection now or in the past; HBV DNA measures how much virus is in the blood.
Some studies accept a past infection if HBV DNA is undetectable, sometimes with antiviral medicine during the study. Check what this study allows.
Anti-inflammatory medicines such as prednisone, prednisolone and dexamethasone — not the anabolic steroids used for muscle.
Studies differ in what they allow: check which steroid medicines, routes (tablets, injections, creams, inhalers, eye drops) and doses this study accepts.
Judged by the study doctor to matter for your health or for the study. It is a doctor’s decision, so ask the study team if you are unsure whether something counts.
A condition in which the immune system attacks the body’s own tissues, such as rheumatoid arthritis, lupus, psoriasis, type 1 diabetes or inflammatory bowel disease.
Immunotherapy studies often leave out active autoimmune disease, and some name exceptions, such as thyroid disease on replacement hormone. Check the exceptions this study lists.
After a transplant from a donor, the donor’s immune cells attack the recipient’s body, often the skin, gut or liver.
Relapsed and refractory
Relapsed: the illness came back after treatment had worked. Refractory: it did not respond to treatment, or stopped responding while still on it.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Platelets
Blood cells that help blood clot. Too few raises the risk of bleeding and bruising. A usual adult range is about 150–400 × 10⁹/L (150,000–400,000 per µL); each lab has its own reference range.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Absolute neutrophil count (ANC)
The number of neutrophils, white blood cells that help fight infection, in a given amount of blood. Too few raises the risk of infection.
It is a count, not a percentage of the white cells. Limits are written in units that mean the same: ≥ 1.5 × 10⁹/L is ≥ 1,500 per mm³ (µL). Each lab has its own reference range.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
ECOG performance status
A scale of how much an illness limits everyday activity. For people being assessed to join a study, scores run from 0 (fully active) to 4; lower is more active.
Studies most often ask for 0–1 or 0–2. Your doctor gives the score; the WHO scale uses the same steps. The full scale also has 5, which records death.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Life expectancy
The study doctor’s estimate of how long someone is likely to live. Criteria use it so that people can stay in the study long enough for it to answer its question.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Hemoglobin (Hb)
The protein in red blood cells that carries oxygen. A low level is anaemia, which can cause tiredness and breathlessness. Measured in g/dL or g/L (9 g/dL is 90 g/L).
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Allogeneic and autologous transplant
Stem cell (bone marrow) transplants. Allogeneic uses cells from a donor; autologous uses your own cells, collected earlier and given back.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
LVEF (left ventricular ejection fraction)
The share of blood the heart’s main pumping chamber (the left ventricle) pushes out with each beat, measured by an echocardiogram (heart ultrasound) or a MUGA scan. About 50–70% is normal.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
QT and QTc
On an ECG, the QT interval is the time the heart’s lower chambers take to activate electrically and recover in each beat. QTc is that time adjusted for heart rate (QTcF by Fridericia’s formula, QTcB by Bazett’s). Some medicines lengthen it, and a long QTc can raise the risk of a dangerous heart rhythm.
The study may name a correction formula and a limit in milliseconds, often around 450–480.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Cancer (malignancy)
Malignancy means cancer. Criteria about another or earlier malignancy ask whether you have had a different cancer, usually within a set number of years.
Some are commonly allowed, such as treated skin cancers other than melanoma and early cancers removed completely — check the exceptions this study lists.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Investigational drug or device
A drug or device being studied in a clinical trial.
It may be new, or already approved and being studied for another use, dose or form. Criteria often leave out people who took part in another study of one within a recent period, commonly 30 days or five half-lives.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Child-Pugh class
A score of how well the liver works in people with liver disease such as cirrhosis: class A is mild, B moderate and C severe.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Hepatitis B tests
Hepatitis B is a virus that infects the liver. These are separate tests: HBsAg positive usually means a current infection (a recent vaccination can briefly cause it too); total anti-HBc (HBcAb) positive means an infection now or in the past; HBV DNA measures how much virus is in the blood.
Some studies accept a past infection if HBV DNA is undetectable, sometimes with antiviral medicine during the study. Check what this study allows.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Corticosteroids (steroids)
Anti-inflammatory medicines such as prednisone, prednisolone and dexamethasone — not the anabolic steroids used for muscle.
Studies differ in what they allow: check which steroid medicines, routes (tablets, injections, creams, inhalers, eye drops) and doses this study accepts.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Clinically significant
Judged by the study doctor to matter for your health or for the study. It is a doctor’s decision, so ask the study team if you are unsure whether something counts.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Autoimmune disease
A condition in which the immune system attacks the body’s own tissues, such as rheumatoid arthritis, lupus, psoriasis, type 1 diabetes or inflammatory bowel disease.
Immunotherapy studies often leave out active autoimmune disease, and some name exceptions, such as thyroid disease on replacement hormone. Check the exceptions this study lists.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
GVHD (graft-versus-host disease)
After a transplant from a donor, the donor’s immune cells attack the recipient’s body, often the skin, gut or liver.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Drug: Nusivertib
Drug: Nusivertib · Drug: Ruxolitinib
Drug: Nusivertib · Drug: Momelotinib
Oral PIM Inhibitor
Also known as: TP-3654
Oral JAK inhibitor
Also known as: Jakafi
Oral JAK inhibitor
Also known as: Ojjaara
Determine the incidence of dose-limiting toxicities (DLTs)
Number of participants with DLTs
Time frame: 28 days
Determine the incidence of treatment emergent adverse events
Number of participants with Treatment Emergent Adverse Events and Serious Adverse Events
Time frame: From start of treatment to end of study
Assess patients for any evidence of preliminary activity by determining the number of patients with ≥ 35% spleen volume reduction (SVR35)
Number of participants with ≥ 35% spleen volume reduction (SVR35)
Time frame: From start of treatment to end of study
Number of participants achieving objective response by IWG-MRT response criteria
Number of participants achieving complete remission, partial remission, clinical improvement, progressive disease and stable disease.
Time frame: From start of treatment to end of study
Number of participants who have ≥ 25% spleen volume reduction
Number of participants who have ≥ 25% spleen volume reduction compared to baseline
Time frame: Every 12 weeks from cycle 1 day 1 through cycle 19 day 1, and then every 24 weeks therafter during treatment.
Number of participants with ≥ 50% improvement in total symptom score (TSS50) at week 24
Number of participants who have ≥ 50% total symptom score reduction by MFSAF compared to baseline after 24 weeks of treatment.
Time frame: 24 weeks
Determine the change in Patient Global Impression of Change (PGIC) at week 24 through end of study.
Change in PGIC score
Time frame: After 24 weeks of treatment to end of study
Determine the incidence of QT interval changes
Changes in QT interval and heart rhythm
Time frame: 25 hours
Establish the half-life (t½) of nuvisertib monotherapy, in combination with ruxolitinib, and in combination with momelotinib
The estimate of time for the nuvisertib concentration or amount to be reduced by half
Time frame: 24 hours
Establish the Area under the plasma concentration versus time curve (AUC) of nuvisertib monotherapy, in combination with ruxolitinib, and in combination with momelotinib
The amount of drug exposure over 24 hours period after administration
Time frame: 24 hours
Establish the Peak Plasma Concentration (Cmax) of nuvisertib monotherapy, in combination with ruxolitinib, and in combination with momelotinib
The maximum nuvisertib concentration after administration
Time frame: 24 hours
Establish the Time of Maximum concentration observed (tmax) of nuvisertib monotherapy, in combination with ruxolitinib, and in combination with momelotinib
The time to reach maximum nuvisertib concentration
Time frame: 24 hours
Number of patients with reduction in bone marrow fibrosis
Time frame: Every 24 weeks to end of study
Study potential pharmacodynamic (PD) markers of nuvisertib
Evaluate exploratory biomarkers, including change in protein phosphorylation and inflammatory cytokines, in peripheral blood samples and bone marrow biopsy samples.
Time frame: 12 months
Nuvisertib monotherapy: Changes in platelet count over time in patients with baseline platelet count < 100 x 10^9/L
Time frame: From start of treatment to end of study
Nuvisertib combination arms: Assess the increase in hemoglobin ≥1.5 or ≥ 2 g/dL from baseline
Time frame: From start of treatment to end of study
Nuvisertib combination arms: Assess red blood cell transfusion independence status or any requirement change
Time frame: From start of treatment to end of study
Establish overall survival
The time interval from treatment start date to date of death from any cause
Time frame: From start of treatment to end of study
Not enrolling at this site — choose another above.
Not enrolling at this site — choose another above.
Not enrolling at this site — choose another above.
Not enrolling at this site — choose another above.
Started Dec 2019 (actual). Primary completion is estimated for Apr 2027, 88 months after the start.
Of 26 phase 1/2 interventional studies under Primary Myelofibrosis, half reached primary completion within 69 months of starting (the median), counting those still running; a quarter within 52 and three quarters within 125. This study's planned 88 months is above that.
How these figures are worked out, and which studies are left out of them.
From the registry record's own update history. This site started tracking changes on Sep 25, 2026; for anything earlier, see the record history on ClinicalTrials.gov ↗
Eligibility is decided by the study team. Share this record with your doctor or contact the team directly.
Contact study teamGet an email when the registry record changes — status, dates, results — or when someone posts here.
Sign in to followQuestions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.
Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.
Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.
Studies of the drug tested here: TP 3654
Sumitomo Pharma America, Inc. →