An Early Phase 1 interventional study of DSP-0390 in High Grade Glioma and Glioblastoma Multiforme, sponsored by Sumitomo Pharma America, Inc.. Active, not recruiting at 9 sites in 2 countries. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2026-07-29.
Sponsored by Sumitomo Pharma America, Inc. (part of Sumitomo Pharma Co., Ltd.) · Early Phase 1, Interventional, and Treatment
This is a study of DSP-0390 in patients with recurrent high grade glioma.
This study will evaluate the safety and efficacy of DSP-0390 in patients with recurrent high grade glioma.
2,132 studies on the registry are indexed under Glioblastoma; 464 are open to participants now.
This study's planned enrollment of 39 is close to the median of 36 across 1,753 interventional studies indexed under Glioblastoma.
Browse Glioblastoma 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..
Compared within Glioblastoma, this study's primary condition as ClinicalTrials.gg classifies it; the registry's first condition term is Glioma. The counts are of registry records indexed under each term, refreshed daily. How we classify →
Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.
Estimated >+3 months Recovery from toxic effects of prior therapy to v5.0 Grade 1 (non-hematologic toxicities) or Grade \<=2(hematologic toxicities, except deep vein thrombosis) >=70%
Adequate organ function as determined by:
If on antiepileptic drug; dose must be stable and no seizures 14 days prior to study Day 1 If on at baseline, dose must be stable or decreasing for at least 5 days prior to study Day 1. For the dose expansion part of the study, the dose must be ≤ 4 mg dexamethasone per day (or equivalent dose if other corticosteroids are used). A higher stable dose of corticosteroids, if used as HRT, may be allowed upon discussion with the Medical Monitor.
Females of must have a negative serum or urine pregnancy test Male or female patients of child-producing potential must agree to use or use prevention of pregnancy measures or agreement to refrain completely from heterosexual intercourse during the study and for 6 months (females \& males) after the last dose of study drug
Exclusion Criteria:
Prior therapy with bevacizumab or other anti-vascular endothelial growth factor (VEGF) treatments within 3 months prior to study Day 1, Multifocal disease, , or extracranial Abnormal ECGs that are , including those where (QTcF>450 msec for males and >470 msec for females); and/or history of Torsade de Pointes \<40% as determined by ECHO or MUGA Known dysphagia, short-gut syndrome, gastroparesis, or other conditions that limit the ingestion or gastrointestinal absorption of drugs administered orally Know active Crohn's or other inflammatory bowel disease History of another primary cancer within the 2 years prior to study Day 1, except for the following: non-melamona skin cancer, cervical carcinoma in situ, superficial bladder cancer that has been removed or curatively treated.
Have a known detectable viral load for or HVC, or evidence of a surface antigen, all being indicative of active infection. [Note: Female breastfeeding patients may be enrolled if they interrupt breastfeeding. Breastfeeding should not be resumed for at least 6 months after the last dose of study drug.]
The presence of any active retinal abnormality determined by screening tests using visual acuity, visual field, fundoscopy, and OCT
Significant cardiovascular disease, including Class III or IV congestive heart failure, myocardial infarction, unstable angina, poorly controlled cardiac arrhythmias, or stroke in the preceding 6 months prior to study Day 1
Uncontrolled intercurrent illness including, but not limited to, psychiatric illness/social situations that would limit compliance with study requirements, or disorders associated with significant state
Major surgical procedure, surgical resection, open , or significant traumatic injury within 4 weeks prior to study Day 1 or anticipation of need for major surgical procedure during the course of the study
Minor surgical procedures, fine needle aspirations, or core biopsies within 7 days prior to study Day 1
Evidence of CNS hemorrhage on baseline MRI or CT scan (except for postsurgical, asymptomatic, Gr 1 hemorrhage that has been stable at least 4 weeks for enrolled patients) Chemotherapy or anticancer therapy administered within 4 weeks (except 6 weeks for nitrosoureas and immunotherapy, or 8 weeks for an implanted nitrosoureas wafer) prior to study Day 1
Radiotherapy within 12 weeks prior to study Day 1, unless relapse is confirmed by tumor biopsy or new lesion outside of radiation field, or if there are 2 MRIs (performed 8 weeks apart) confirming progressive disease
Concurrent use of prohibited medications: carbamazepine, phenytoin, phenobarbital, and other strong or moderate inhibitors or inducers, and strong CYP2D6 inhibitors. These should be discontinued 1 week or 5 half-lives (whichever is greater) prior to study Day 1
Concurrent treatment with Tumor Treatment Field (Optune) is not allowed. Patients must stop Optune 1 day prior to the first dose of study drug. Any wounds from Optune must be healed adequately prior to study Day 1
History of, within 6 months of study Day 1:
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.
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 US National Cancer Institute’s scale of how severe an adverse event is — any unwanted medical event during a study, such as a symptom, an illness or an abnormal test result, whether or not a treatment caused it. Whether it did is judged separately.
“Side effects of earlier treatment resolved to grade 1 or less” means they have settled to mild or gone.
A 0–100 scale of how well someone can carry out everyday activities. 100 is no complaints and no signs of illness; 70 is able to look after yourself but not to work or keep up normal activity; 50 is needing considerable help and frequent medical care.
Studies often ask for 60 or 70 and above. Your doctor gives the score.
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 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).
How quickly the kidneys clear creatinine, a waste product, from the blood. A study may estimate it from a blood test with age, weight and sex (often by the Cockcroft–Gault formula), or measure it using blood and urine collected over a set time. Given in mL/min; higher is better.
A yellow substance made when red blood cells are broken down, which the liver clears. A high level can mean a problem with the liver or the bile ducts.
Criteria often allow more for people with Gilbert’s syndrome, a harmless inherited condition that raises bilirubin.
The top of the normal range for a blood test, as set by the laboratory that runs it. Each lab prints its own range next to your result.
“≤ 2.5 × ULN” means the result can be up to two and a half times that top value.
Two enzymes measured in a routine blood test of the liver. Higher levels can mean the liver is under strain or damaged. SGPT and SGOT are older names for ALT and AST.
Criteria usually give a limit as a multiple of the upper limit of normal (ULN), often higher when cancer has spread to the liver.
Blood tests of how long blood takes to clot. The INR is the prothrombin time (PT) put on a common scale; about 1 is usual for someone not taking a blood thinner.
Criteria often make an exception for people on a blood thinner such as warfarin, whose INR is raised on purpose.
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.
Able to become pregnant: from the first period until menopause, unless permanently unable to through surgery (removal of the womb, or of both ovaries or both fallopian tubes).
Criteria for people of childbearing potential usually ask for a negative pregnancy test and for contraception during the study and for a time after it.
Ways of preventing pregnancy. “Highly effective” methods fail less than 1% of the time a year when used correctly — for example an IUD or an implant.
Criteria usually say which methods count and how long to keep using them after the last dose, sometimes for male participants too. Some studies accept a partner’s vasectomy if it was confirmed successful and that person is the participant’s only sexual partner.
Cancer that has spread to the leptomeninges, the thin layers covering the brain and spinal cord, and the fluid between them. It is not the same as brain metastases.
Criteria often treat it separately, and many studies leave it out even where treated brain metastases are allowed.
Cancer that has spread from where it began to other parts of the body. “Metastatic” cancer is cancer that has spread this way.
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.
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.
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.
The human immunodeficiency virus, which weakens the immune system.
Many studies now accept people whose HIV is controlled on treatment, judged by the viral load and the CD4 count. Check the limits this study sets.
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.
The New York Heart Association’s four classes of how much heart failure limits physical activity.
Studies set their own limit — many outside heart failure leave out class III–IV, while heart failure studies may ask for a particular class. Check the class this study names.
A weakened immune system. It can come from an illness, such as HIV or some blood cancers, or from medicines that turn the immune system down, for example after an organ transplant or for an autoimmune disease; steroids at higher doses count.
Read whether the line is about a condition or about medicines, and which medicines and doses it means.
A biopsy takes a small piece of tissue to examine. “Archival tissue” is a sample already taken, for example at diagnosis, and kept by the hospital.
Whether a stored sample will do depends on when it was taken, how much there is and what the study needs. Ask whether the study accepts your stored sample or needs a new biopsy.
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.
CYP3A is a group of enzymes, mainly CYP3A4, in the liver and gut that break down many medicines. Some medicines, supplements and foods (grapefruit, St John’s wort) slow them down or speed them up, which changes how much of a study drug stays in the body.
Studies list them so they can be avoided or switched; bring a list of everything you take, including supplements.
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.
CTCAE grade
The US National Cancer Institute’s scale of how severe an adverse event is — any unwanted medical event during a study, such as a symptom, an illness or an abnormal test result, whether or not a treatment caused it. Whether it did is judged separately.
“Side effects of earlier treatment resolved to grade 1 or less” means they have settled to mild or gone.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Karnofsky performance status (KPS)
A 0–100 scale of how well someone can carry out everyday activities. 100 is no complaints and no signs of illness; 70 is able to look after yourself but not to work or keep up normal activity; 50 is needing considerable help and frequent medical care.
Studies often ask for 60 or 70 and above. Your doctor gives the score.
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.
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.
Creatinine clearance (CrCl)
How quickly the kidneys clear creatinine, a waste product, from the blood. A study may estimate it from a blood test with age, weight and sex (often by the Cockcroft–Gault formula), or measure it using blood and urine collected over a set time. Given in mL/min; higher is better.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Bilirubin
A yellow substance made when red blood cells are broken down, which the liver clears. A high level can mean a problem with the liver or the bile ducts.
Criteria often allow more for people with Gilbert’s syndrome, a harmless inherited condition that raises bilirubin.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
ULN (upper limit of normal)
The top of the normal range for a blood test, as set by the laboratory that runs it. Each lab prints its own range next to your result.
“≤ 2.5 × ULN” means the result can be up to two and a half times that top value.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
ALT and AST (liver enzymes)
Two enzymes measured in a routine blood test of the liver. Higher levels can mean the liver is under strain or damaged. SGPT and SGOT are older names for ALT and AST.
Criteria usually give a limit as a multiple of the upper limit of normal (ULN), often higher when cancer has spread to the liver.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
INR, PT and aPTT (clotting tests)
Blood tests of how long blood takes to clot. The INR is the prothrombin time (PT) put on a common scale; about 1 is usual for someone not taking a blood thinner.
Criteria often make an exception for people on a blood thinner such as warfarin, whose INR is raised on purpose.
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.
Childbearing potential
Able to become pregnant: from the first period until menopause, unless permanently unable to through surgery (removal of the womb, or of both ovaries or both fallopian tubes).
Criteria for people of childbearing potential usually ask for a negative pregnancy test and for contraception during the study and for a time after it.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Contraception
Ways of preventing pregnancy. “Highly effective” methods fail less than 1% of the time a year when used correctly — for example an IUD or an implant.
Criteria usually say which methods count and how long to keep using them after the last dose, sometimes for male participants too. Some studies accept a partner’s vasectomy if it was confirmed successful and that person is the participant’s only sexual partner.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Leptomeningeal disease
Cancer that has spread to the leptomeninges, the thin layers covering the brain and spinal cord, and the fluid between them. It is not the same as brain metastases.
Criteria often treat it separately, and many studies leave it out even where treated brain metastases are allowed.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Metastases
Cancer that has spread from where it began to other parts of the body. “Metastatic” cancer is cancer that has spread this way.
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.
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.
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.
HIV
The human immunodeficiency virus, which weakens the immune system.
Many studies now accept people whose HIV is controlled on treatment, judged by the viral load and the CD4 count. Check the limits this study sets.
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.
NYHA class (heart failure)
The New York Heart Association’s four classes of how much heart failure limits physical activity.
Studies set their own limit — many outside heart failure leave out class III–IV, while heart failure studies may ask for a particular class. Check the class this study names.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Immunosuppression
A weakened immune system. It can come from an illness, such as HIV or some blood cancers, or from medicines that turn the immune system down, for example after an organ transplant or for an autoimmune disease; steroids at higher doses count.
Read whether the line is about a condition or about medicines, and which medicines and doses it means.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Biopsy and archival tissue
A biopsy takes a small piece of tissue to examine. “Archival tissue” is a sample already taken, for example at diagnosis, and kept by the hospital.
Whether a stored sample will do depends on when it was taken, how much there is and what the study needs. Ask whether the study accepts your stored sample or needs a new biopsy.
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.
CYP3A (CYP3A4) inhibitors and inducers
CYP3A is a group of enzymes, mainly CYP3A4, in the liver and gut that break down many medicines. Some medicines, supplements and foods (grapefruit, St John’s wort) slow them down or speed them up, which changes how much of a study drug stays in the body.
Studies list them so they can be avoided or switched; bring a list of everything you take, including supplements.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Arm Description \[\*\] DSP-0390 by oral administration
Drug: DSP-0390
DSP-0390 administered orally
Dose Escalation: Assess safety of DSP-0390 by Incidence of TEAEs and SAEs in adult patients with recurrent high-grade glioma
Occurrence of DLTs by Incidence of TEAEs and SAEs, as assessed by NCI CTCAE v5.0
Time frame: From date of treatment through 30 days after End of Treatment an average of 6 months
Dose Escalation: Assess safety of DSP-0390 by severity of TEAEs and SAEs in adult patients with recurrent high-grade glioma
Occurrence of DLTs by severity of TEAEs and SAEs, as assessed by NCI CTCAE v5.0
Time frame: From date of treatment through 30 days after End of Treatment an average of 6 months
Dose Escalation: Determine the MTD and/or RDE of DSP-0390
Incidence of dose-limiting toxicities
Time frame: From date of first treatment through Cycle 1 (28-day cycle) DLT monitoring period
Dose Expansion: Evaluate the change in Baseline tumor activity of DSP-0390 using radiologic assessments.
Evaluate the change in baseline tumor activity of DSP-0390 using radiologic assessments evaluated by RANO 2010 Evaluation Criteria
Time frame: From date of first treatment, assessed by radiologic examination performed at 8-week intervals through study completion, an average of 6 months
Dose Expansion: Evaluate the safety of the Recommended Phase 2 Dose of DSP-0390 by assessment of incidence of TEAEs and SAEs
Assess the safety of the Recommended Phase 2 Dose of DSP-0390 by assessment of incidence of TEAEs and SAEs
Time frame: From date of first treatment through study completion, an average of 6 months
Dose Expansion: Evaluate the safety of the Recommended Phase 2 Dose by assessment of severity of TEAEs and SAEs
Assess the safety of the Recommended Phase 2 Dose of DSP-0390 by assessment of severity of TEAEs and SAEs
Time frame: From date of first treatment through study completion, an average of 6 months
Assess safety of DSP-0390 by Incidence of SAEs in adult patients with recurrent high-grade glioma consented under Protocol Amendment 5
Incidence of SAEs, as assessed by NCI CTCAE v5.0
Time frame: From date of treatment through 30 days after End of Treatment an average of 12 months
Assess safety of DSP-0390 by Incidence of AEs resulting in study discontinuation in adult patients with recurrent high-grade glioma consented under Protocol Amendment 5
Incidence of AEs resulting in study discontinuation, as assessed by NCI CTCAE v5.0
Time frame: From date of treatment through 30 days after End of Treatment an average of 12 months
Dose Escalation: Characterize the PK profile for AUC
PK assessed for AUC
Time frame: Cycle 1 Day 1 and Cycle 2 Day 1- 0, 30 min, and 1, 2, 4, 6, 8, 10, 12 hrs, each cycle is 28 days
Dose Escalation: Characterize the PK profile for Cmax
PK assessed for Cmax
Time frame: Cycle 1 Day 1 and Cycle 2 Day 1 -0, 30 min, and 1, 2, 4, 6, 8, 10, 12 hrs , each cycle is 28 days
Dose Escalation: Characterize the PK profile for tmax
PK assessed for tmax
Time frame: Cycle 1 Day 1 and Cycle 2 Day 1- 0, 30 min, and 1, 2, 4, 6, 8, 10, 12 hrs , each cycle is 28 days
Dose Escalation: Characterize the PK profile for t1/2
PK assessed for t1/2
Time frame: From date of first treatment, Cycle 1 Day 1 and Cycle 2 Day 1- 0, 30 min, and 1, 2, 4, 6, 8, 10, 12 hrs , each cycle is 28 days]
Dose Escalation: Characterize the PK profile for Racc
PK assessed for Racc
Time frame: Cycle 1 Day 8, 15 and 22 and Cycle 2 Day 1, each cycle is 28 days
Dose Escalation: Evaluate preliminary antitumor activity
Objective response (complete or partial response) and duration of response assessed by RANO criteria.
Time frame: From date of first treatment, assessed by radiologic examination performed at 8-week intervals through study completion, an average of 6 months]
Exploratory: Assess the PD effect of DSP-0390
Biomarker (lathosterol/zymostenol ratio) in blood
Time frame: From first date of treatment, blood tests performed at 8 week intervals through study completion, an average of 6 months
Plan to share: No
No publications or documents are linked to this record.
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Studies of the drug tested here: DSP-0390
Sumitomo Pharma America, Inc. →