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QTI571

Phase 4

Severe Pulmonary Arterial Hypertension | Small molecule | Cardiovascular |Novartis AG|Trials Updated: Aug 28, 2026

QTI571 development status

Highest phase Phase 4 (NCT04877522)
Phase scored for NVSPhase 3
Registered trials 60 across 29 sponsors since Aug 2002

QTI571 target and mechanism

ModalitySmall molecule

Also known as Imatinib

Success Probability

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Market & Valuation

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Trial Design

UNCONTROLLED
Total Trials42
Total Enrollment3,254

FDA Designations

No designations recorded

QTI571 clinical trials

QTI571 · 42 trials · 44 indications

Phase 3 7Phase 2 29Phase 1 6
NCT04971226A Study of Oral Asciminib Versus Other TKIs in Adult Patients With Newly Diagnosed Ph+ CML-CPChronic Myeloid Leukemia (CML) Philadelphia Chromosome Positive
ACTIVE NOT_RECRUITING405 Analytics
NCT02272777A Study of Imatinib and Nilotinib in Patients With Chronic Myelogenous Leukemia in Chronic PhaseLeukemia
COMPLETED225 Analytics
NCT02042014Open-label, Multi-center Protocol to Provide QTI571 to PAH Patients Who Participated in the Extension Study (A2301E1) in JapanSevere Pulmonary Arterial Hypertension
COMPLETED8 Analytics
NCT01392469Pharmacokinetic Effects of QTI571 on Sildenafil and Bosentan in Pulmonary Arterial Hypertension ParticipantsPulmonary Arterial Hypertension
COMPLETED21 Analytics
NCT00902174Imatinib (QTI571) in Pulmonary Arterial HypertensionPulmonary Arterial Hypertension
COMPLETED202 Analytics
NCT00154375Study of Imatinib Mesylate in Combination With Hydroxyurea Versus Hydroxyurea Alone as an Oral Therapy in Patients With Temozolomide Resistant Progressive GlioblastomaGlioblastoma Multiforme
COMPLETED240 Analytics
NCT00237120Efficacy, Safety and Long-term Prognosis of Imatinib in Patients Newly Diagnosed With Chronic Myelogenous Leukemia (Chronic Phase)Chronic Myelogenous Leukemia in Chronic Phase
COMPLETED100 Analytics
PHASE3ACTIVE NOT_RECRUITING
A Study of Oral Asciminib Versus Other TKIs in Adult Patients With Newly Diagnosed Ph+ CML-CP
Chronic Myeloid Leukemia (CML) Philadelphia Chromosome PositiveUnlock trial analytics
PHASE3COMPLETED
A Study of Imatinib and Nilotinib in Patients With Chronic Myelogenous Leukemia in Chronic Phase
LeukemiaUnlock trial analytics
PHASE3COMPLETED
Open-label, Multi-center Protocol to Provide QTI571 to PAH Patients Who Participated in the Extension Study (A2301E1) in Japan
Severe Pulmonary Arterial HypertensionUnlock trial analytics
PHASE3COMPLETED
Pharmacokinetic Effects of QTI571 on Sildenafil and Bosentan in Pulmonary Arterial Hypertension Participants
Pulmonary Arterial HypertensionUnlock trial analytics
PHASE3COMPLETED
Imatinib (QTI571) in Pulmonary Arterial Hypertension
Pulmonary Arterial HypertensionUnlock trial analytics
PHASE3COMPLETED
Study of Imatinib Mesylate in Combination With Hydroxyurea Versus Hydroxyurea Alone as an Oral Therapy in Patients With Temozolomide Resistant Progressive Glioblastoma
Glioblastoma MultiformeUnlock trial analytics
PHASE3COMPLETED
Efficacy, Safety and Long-term Prognosis of Imatinib in Patients Newly Diagnosed With Chronic Myelogenous Leukemia (Chronic Phase)
Chronic Myelogenous Leukemia in Chronic PhaseUnlock trial analytics

Study Endpoints

Primary Endpoints

Percentage of Participants With Major Molecular Response (MMR) at Week 48 - Ascimimib vs. Investigator Selected TKI
At 48 weeks

Molecular response is assessed using BCR-ABL1 transcript levels measured by realtime quantitative polymerase chain reaction. MMR is defined as a ratio BCR-ABL/ABL ≤0.1% on the international scale (ie, at least 3 log reduction from a standardized baseline value).

Percentage of Participants With Major Molecular Response (MMR) at Week 48 - Asciminib (Imatinib Stratum) vs Investigator Selected TKI (Imatinib Stratum)
At 48 weeks

Molecular response is assessed using BCR-ABL1 transcript levels measured by realtime quantitative polymerase chain reaction. MMR is defined as a ratio BCR-ABL1/ABL ≤0.1% on the international scale (ie, at least 3 log reduction from a standardized baseline value).

Number of Participants With Adverse Events (AEs) and Serious Adverse Events (SAEs)
From first dose of study treatment to 30 days after last dose of study treatment, up to 31 months

Clinically significant changes in laboratory values and vital signs were reported as AEs or SAEs, as appropriate. Only descriptive analysis.

Serious Adverse Events
Approximately 2.9 years

All Serious Adverse Events were evaluated and reported for all participants receiving QTI571. 16 individual SAEs were observed in 5 subjects.

Geometric Mean Ratio of Dose Normalized Area Under the Curve From Time Zero to Tau (AUCtau) for Bosentan Before and After Imatinib Administrations
Day 1: pre-dose, Day 8: pre-dose, 0.5, 1, 2, 3, 4, 6, 8, 10 and 12 hours post-dose, Day 9: pre-dose, Days 22 and 36: pre-dose, 0.5, 1, 2, 3, 4, 6, 8, 10, 12 and 24 hours post-dose

AUCtau was the area under the curve calculated to the end of the dosing interval, tau. The effect of co-administration of imatinib at two doses (200 and 400 mg) on the pharmacokinetics of bosentan was performed on dose normalized AUCtau of bosentan. A mixed effects linear model was fitted to the log-transformed PK parameters. This model included treatment (i.e., dose of imatinib) as a fixed effect, and participant as a random effect. Estimates for the treatment differences and associated 90% confidence intervals were obtained from the above model. These estimates and confidence intervals were then "back-transformed" to the original scale, giving, for each dose level of imatinib, the ratio of imatinib + co-administered sildenafil and bosentan (test) relative to the co-administered drugs alone (sildenafil + bosentan) (reference).

Geometric Mean Ratio of Dose Normalized AUCtau for Sildenafil Before and After Imatinib Administrations
Day 1: pre-dose, Day 8: pre-dose, 0.5, 1, 2, 3, 4, 6, 8, 10 and 12 hours post-dose, Day 9: pre-dose, Days 22 and 36: pre-dose, 0.5, 1, 2, 3, 4, 6, 8, 10, 12 and 24 hours post-dose

AUCtau was the area under the curve calculated to the end of the dosing interval, tau. The effect of co-administration of imatinib at two doses (200 and 400 mg) on the pharmacokinetics of sildenafil was performed on dose normalized AUCtau of sildenafil. A mixed effects linear model was fitted to the log-transformed PK parameters. This model included treatment (i.e., dose of imatinib) as a fixed effect, and participant as a random effect. Estimates for the treatment differences and associated 90% confidence intervals were obtained from the above model. These estimates and confidence intervals were then "back-transformed" to the original scale, giving, for each dose level of imatinib, the ratio of imatinib + co-administered sildenafil and bosentan (test) relative to the co-administered drugs alone (sildenafil + bosentan) (reference).

Geometric Mean Ratio of Dose Normalized Maximum Plasma Concentration (Cmax) for Bosentan Before and After Imatinib Administrations
Day 1: pre-dose, Day 8: pre-dose, 0.5, 1, 2, 3, 4, 6, 8, 10 and 12 hours post-dose, Day 9: pre-dose, Days 22 and 36: pre-dose, 0.5, 1, 2, 3, 4, 6, 8, 10, 12 and 24 hours post-dose

Cmax was the maximum (peak) observed plasma, blood, serum, or other body fluid drug concentration after dose administration. The effect of co-administration of imatinib at two doses (200 and 400 mg) on the pharmacokinetics of bosentan was performed on dose normalized Cmax of bosentan. A mixed effects linear model was fitted to the log-transformed PK parameters. This model included treatment (i.e., dose of imatinib) as a fixed effect, and participant as a random effect. Estimates for the treatment differences and associated 90% confidence intervals were obtained from the above model. These estimates and confidence intervals were then "back-transformed" to the original scale, giving, for each dose level of imatinib, the ratio of imatinib + co-administered sildenafil and bosentan (test) relative to the co-administered drugs alone (sildenafil + bosentan) (reference).

Geometric Mean Ratio of Dose Normalized Cmax for Sildenafil Before and After Imatinib Administrations
Day 1: pre-dose, Day 8: pre-dose, 0.5, 1, 2, 3, 4, 6, 8, 10 and 12 hours post-dose, Day 9: pre-dose, Days 22 and 36: pre-dose, 0.5, 1, 2, 3, 4, 6, 8, 10, 12 and 24 hours post-dose

Cmax was the maximum (peak) observed plasma, blood, serum, or other body fluid drug concentration after dose administration. The effect of co-administration of imatinib at two doses (200 and 400 mg) on the pharmacokinetics of sildenafil was performed on dose normalized Cmax of sildenafil. A mixed effects linear model was fitted to the log-transformed PK parameters. This model included treatment (i.e., dose of imatinib) as a fixed effect, and participant as a random effect. Estimates for the treatment differences and associated 90% confidence intervals were obtained from the above model. These estimates and confidence intervals was then "back-transformed" to the original scale, giving, for each dose level of imatinib, the ratio of imatinib + co-administered sildenafil and bosentan (test) relative to the co-administered drugs alone (sildenafil + bosentan) (reference).

Difference in Six-minute Walk Distance Test (6MWD) Between Imatinib and Placebo at 24 Weeks
24 weeks

This standardized walk course was 30 meters in length. During the walk the participant was connected to a portable pulse oximeter via a finger probe. Participants were instructed to walk at a comfortable speed for as far as they could manage in 6 minutes. The total distance walked (in meters) was recorded. Results were compared between the 2 groups.

Percentage of Participants With Progression Free Survival (PFS) During the Study Duration
6 months -1 year

PFS was defined as the time from the date of randomization to the date of the first documented progression according to the MacDonald criteria, or death due to any cause. MacDonald criteria are standard criteria in neurooncology. Tumor assessment was made according to the adapted MacDonald criteria based on the combined evaluation of 1) assessment of the MRI scan for measurable, evaluable, and new lesions (made by the independent external expert too), 2) overall assessment of neurological performance (made by the investigator), 3) concomitant steroid use (as reported by the investigator).

3 years overall survival
Duration of remaining in chronic phase
deep molecular response (Rate of MR4)
at month 12 after Start of Standard-Therapy

Achievement of deep molecular response (MR4) throught standardized testing of BCR-ABL-transcript Levels

deep molecular Response (Rate of MR4.5)
at month 36 after Start of Standard-Therapy

Achievement of deep molecular response (MR4.5) throught standardized testing of BCR-ABL-transcript Levels

Response rate at 3 months (complete and partial remission) after salvage treatment with Nilotinib in patients with chronic GVHD who failed Imatinib Mesylate (IM)
Between Baseline and minimum 12 weeks of treatment
Major molecular response
60 months

Major molecular response achieved to Month 60 from the time of Glivec treatment

Non-progression rate after 6 months of treatment
6 months
Response Rate
6 months

Response rates according to RECIST criteria (version 1.0) expressed as percentage of evaluable patients.

Recurrence-free Survival up to 60 Months
Baseline up to 60 months

Recurrence-free survival assessment is based on the radiologic evidence and is defined as the time from the date of first dose of imatinib to the date of the first documented disease recurrence or death due to any cause (event).

Kaplan-Meier Estimates for Recurrence-free Survival up to 60 Months
Baseline up to 60 months

Recurrence-free survival (RFS) assessment is based on the radiologic evidence and is defined as the time from the date of first dose of imatinib to the date of the first documented disease recurrence or death due to any cause (event). RFS estimates were summarized using the Kaplan-Meier product-limit method (Kaplan 1958). Censoring rules for RFS with the earliest occurring rule used in the analysis: subjects without objective recurrence of disease who were alive at the time of their discontinuation from study were censored at the end of study date or end of treatment visit date if the subject refused to be followed post treatment and subjects recording antineoplastic therapy during the study were censored on the date of the therapy initiated

Recurrence Free Survival Rate
2 years
Objective response using the RECIST criteria
16 weeks
Improvement in the Modified Rodnan Skin Score
12 months

Improvement in the Modified Rodnan Skin Score (MRSS) is measured by Mean change (and 95% Confidence Interval) from Baseline mean to Month 12 mean.Measure Description: The Modified Rodnan Skin Score (MRSS) measures dermal skin thickness through the examination of 17 body areas: fingers, hands, forearms, arms, feet, legs, and thighs (in pairs), and face, chest, and abdomen. The skin score is 0 for uninvolved skin through 3 for severe thickening (hidebound skin). The total skin score is the sum of the skin scores of the individual areas. The minimum score is 0 and the maximum score is 51. A higher score indicates greater severity of disease. The mean change in MRSS represents the average change in total skin score from baseline to month 12.

PSA Response Rate
up to 24 weeks

To investigate the effect of a treatment with Imatinib mesylate, Pioglitazone , Etoricoxib, and Dexamethasone in combination with metronomic chemotherapy (Treosulfane) on the PSA response rate in patients with hormone refractory prostate cancer. A patient will be defined as a responder if a PSA decline of at least 50%, which must be confirmed by a second PSA value 4 weeks later, is observed. A patient will be defined as a non-responder if PSA has not decreased during treatment. Non-response is defined as a 25% increase over the baseline on-study which is confirmed (equal or more) by a second value 4 weeks apart. The absolute increase must account for \> 5 ng/ml.

Best Overall Response
Disease was evaluated radiologically at baseline, after 6-weeks, and at 2-month intervals on treatment. Mean treatment duration was 4 months (range 1-11; amplified/mutated 3m/ 6m).

Best overall response (BOR) on treatment was based on RECIST 1.0 criteria. For target lesions, complete response (CR) is complete disappearance of all target lesions and partial response (PR) is at least a 30% decrease in the sum of longest diameter (LD) of target lesions, taking as reference baseline sum LD. CR or PR confirmation required within 4 weeks. Progressive disease (PD) is at least a 20% increase in the sum LD of target lesions from smallest sum LD as reference or the appearance of one or more new lesions. Stable disease (SD) is neither meeting PR or PD. PD for the evaluation of non-target lesions is the appearance of one or more new lesions and/or unequivocal progression of non-target lesions. CR is disappearance of all non-target lesions.

Number of Patients With Adverse Events (AEs), Serious Adverse Events (SAEs) and Death During the Core
6 months

In this analysis patients with all (serious and non -serious) adverse events, and death were reported. See Safety Section.

Number of Patients With Adverse Events (AEs), Serious Adverse Events (SAEs) and Death During the Extension
72 months

In this analysis patients with all (serious and non -serious) adverse events, and death were reported. See Safety Section.

Change From Baseline of Six Minute Walk Test - Total Distance Walked at Different Time Periods
Baseline, Day 32, Week 8, Week 12, Week 16, Week 20 and Study completion (Week 24)

The Six Minute Walk test was carried out along a course, such as a hospital corridor, measuring at least 20 meters delineated by markers. Patients were instructed to walk at a comfortable speed as far as they could manage in six minutes, resting whenever they needed to. Distance \<500 meters suggests considerable exercise limitation; Distance 500-800 meters suggests moderate limitation; Distance \>800 meters (with no rests) suggests mild or no limitation.

Change From Baseline of Six Minute Walk Test - Number of Stops at Different Time Periods
Baseline, Day 32, Week 8, Week 12, Week 16, Week 20 and Study completion (Week 24)

The Six Minute Walk test was carried out along a course, such as a hospital corridor, measuring at least 20 meters delineated by markers. Patients were instructed to walk at a comfortable speed as far as they could manage in six minutes, resting whenever they needed to. Number of stops were recorded for each patient.

Change From Baseline of Six Minute Walk Test - Total Duration of Stops at Different Time Periods
Baseline, Day 32, Week 8, Week 12, Week 16, Week 20 and Study completion (Week 24)

The Six Minute Walk test was carried out along a course, such as a hospital corridor, measuring at least 20 meters delineated by markers. Patients were instructed to walk at a comfortable speed as far as they could manage in six minutes, resting whenever they needed to. If the patient stopped the duration of each stop was recorded.

Overall Time To Progression (TTP)
Up to 24 months

TTP is the amount of time from date of registration to date of first documentation of progression or symptomatic deterioration. For progression, one or more of the following must occur: (1) 20% increase in the sum of longest diameters of target measurable lesions over smallest sum observed (over baseline if no decrease during therapy) using the same techniques as baseline. (2) Increase in PSA by at least 25% from baseline in patients whose PSA did not decrease, and of 50% from nadir in patients whose PSA decreased with a confirmation 3 weeks later. (3) Unequivocal progression of non-measurable disease in the opinion of the treating physician (an explanation must be provided). (4) Appearance of any new lesion/site. (5) Death due to disease without prior documentation of progression and without symptomatic deterioration, which is defined as global deterioration of health status requiring discontinuation of treatment without objective evidence of progression.

Tumor response
Every 3 months for 2 years

objective response according to RECIST and clinical response

To assess the efficacy and the safety of imatinib mesylate therapy
2 years
Efficacy of imatinib in combination with MTX in pts with active RA by assessing response to treatment(ACR20) after 3 mos compared to MTX alone
Overall safety and tolerability of imatinib in combination with MTX in pts with active RA over 3 mos compared to MTX alone.
3 month hematological response rate
Overall response rate
Response duration
To study the antineoplastic effect of the investigational drug.
To determine the overall response rate of Gleevec as a single agent in patients with BCR-negative myeloproliferative disorders including myelofibrosis with myeloid metaplasia and chronic myelomonocytic leukemia
3 years
- to assess the tolerability of Imatinib given at a daily dose of 400mg
- to evaluate the hematologic, cytogenetic and molecular responses at various check points.
tumor response /RecIST criteria)
first 2 months monthly, then every 3 months
To examine the effect(s) of Imatinib mesylate treatment on life threatening rare diseases with known associations to one or more Imatinib mesylate-sensitive tyrosine kinases
To identify the contribution of specific protein tyrosine kinases (PTKs) of that specific disease
Best Tumor Response (Core)
Month 36

Best tumor response was based on the Southwestern Oncology Group (SWOG) criteria. Objective tumor response assessments were categorized according to the following criteria: complete response (CR), partial response (PR), no change or stable disease (SD), progression of disease (PD), unknown where the progression has not been documented and one or more measurable or evaluable sites have not been assessed (UNK), status after resection for progression (RP), status after resection for safety (RS), status after preventive resection (RPR), progressive after first resection (PDR) and not evaluable. Any tumor assessment after surgical resection for preventative reasons was treated like tumor assessments of UNK for calculation of best response. Tumor assessments with current objective status = RP, RS or PDR were treated like assessments with objective tumor status = PD n the calculation of best response.

Best Tumor Response (Core + Extension)
Month 156

Best tumor response was based on the Southwestern Oncology Group (SWOG) criteria. Objective tumor response assessments were categorized according to the following criteria: complete response (CR), partial response (PR), no change or stable disease (SD), progression of disease (PD), unknown where the progression has not been documented and one or more measurable or evaluable sites have not been assessed (UNK), status after resection for progression (RP), status after resection for safety (RS), status after preventive resection (RPR), progressive after first resection (PDR) and not evaluable. Any tumor assessment after surgical resection for preventative reasons was treated like tumor assessments of UNK for calculation of best response. Tumor assessments with current objective status = RP, RS or PDR were treated like assessments with objective tumor status = PD n the calculation of best response.

Overall Survival
From first dose until death of the patient, up to 14 years.

Overall survival was defined as the number of events of death, expressed as a percentage, from the start of treatment to death, due to any reason.

Overall Survival (by Month)
From first dose until death of the patient, up to 14 years.

Overall survival was defined as the time between start of treatment and death due to any reason. Overall survival for the participants was calculated by Kaplan-Meier estimates per month. The time was censored at the date of last contact for participants who discontinued treatment and were in survival follow-up.

MTD and the recommended phase II doses of imatinib and PTK/ZK administered daily every 28 days
18 months
The frequency of adverse events graded according to the CTCAE will be the primary endpoint
Subjects will be monitored at 1, 4, 8, 16, and 24 weeks.
Treatment-related Adverse Events
Baseline vs. Endpoint (1 year)

Treatment-related adverse events requiring discontinuation.

Effect of Imatinib on the reduction of mast cell degranulation (measured by β-tryptase and PGD2) in response to allergen challenge
To investigate the effects of the co-administration of imatinib on the pharmacokinetics of acetaminophen / paracetamol
Day 1, day 2 -7, Day 8
To investigate the pharmacokinetic characteristics of imatinib at steady state in CML-CP patients following 400 mg dosing co-administered with acetaminophen
Day 1, Day 2-7, Day 8
To determine MTD & DLT & Imatinib mesylate & RAD001 when combined w Hydroxyurea among pt w GBM
6 months

Secondary Endpoints

Major Molecular Response at Week 96
at 96 weeks (96 weeks after last patient first dose)
Time to Discontinuation of Study Treatment Due to Adverse Events (TTDAE)
96 weeks after last patient first dose
Major Molecular Response at Scheduled Data Collection Time Points
Planned total follow-up duration of 5 years
Unlock Study Endpoints

Study Design & Arms

AllocationRANDOMIZED
MaskingNONE
ModelPARALLEL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
AsciminibEXPERIMENTALPatients will take asciminib 80 mg QD under fasting conditions on ongoing basis; Patients will be randomized 1:1 asciminib versus Investigator selected TKIs
Investigator selected TKIsACTIVE_COMPARATORPatients will take on ongoing basis the Investigator selected TKIs that will include one of the below treatments: Imatinib 400 mg QD administered with food Nilotinib 300 mg BID administered under fasting conditions Dasatinib 100 mg QD administered with or without a meal Bosotunib 400 mg QD administered with food
ImatinibACTIVE_COMPARATOREligible patients from imatinib arm in core study CAMN107ECN02 were enrolled into imatinib arm in this study. Patients in imatinib 400 mg daily arm received imatinib daily dose of 300 mg, 400 mg or 600 mg all at once every day.
NilotinibEXPERIMENTALEligible patients from nilotinib arm in core study CAMN107ECN02 were enrolled into imatinib arm in this study. Patients in nilotinib arm received 300 mg BID by mouth each morning and evening approximately 12 hours apart, or 400 mg QD.
QTI571EXPERIMENTALParticipants will receive QTI571 during 3 years.
Imatinib + Bosentan + SildenafilEXPERIMENTALParticipants received treatment with bosentan 125 milligrams (mg) twice daily and sildenafil thrice daily for 8 days in treatment period 1. Participants were on the same sildenafil dose level (20, 40, 50 or 60 mg) they had been at study entry which was well tolerated in conjunction with bosentan. Following treatment period 1, the participants received concomitant treatment of oral imatinib 200 mg daily, bosentan 125 mg twice daily and sildenafil thrice daily for 14 days in treatment period 2. Following treatment period 2, the participants received concomitant treatment of oral imatinib 400 mg daily, bosentan 125 mg twice daily and sildenafil thrice daily for 14 days in treatment period 3.
imatinib mesylateEXPERIMENTALImatinib mesylate (QTI571) 200 mg once daily for two weeks, increased to 400 mg once daily if well tolerated. If 400 mg dose was not well tolerated, a down titration to 200 mg once daily was permitted.
PlaceboPLACEBO_COMPARATORPlacebo to imatinib mesylate taken once daily. Participants receiving placebo were allowed to receive already approved PAH treatments.
Imatinib mesylate + hydroxyurea (HU)EXPERIMENTALImatinib was supplied as 100 mg and 400 mg tablets. Patients in the combination arm were instructed to take a daily oral imatinib dose of 600 mg (600 mg at lunch time) and a daily oral hydroxyurea (HU) dose of 1000 mg (500 mg twice daily; in the morning and at bed time). Every 6 weeks after randomization based on assessment of therapeutic response, either patients continued with above mentioned dosing regimen or switched to receive a daily dose of 800 mg imatinib with 1000 mg HU. Patients were instructed to split the intake, taking 400 mg imatinib with 500 mg HU in the morning, then the same in the evening.
Hydroxyurea aloneACTIVE_COMPARATOR1500 mg/day of HU given as 500 mg 3 times daily. Every 6 weeks after randomization and based on assessment of therapeutic response, the patients were either switched to combination arm or continued in monotherapy arm of hydroxyurea.
Asciminib 60mg QDEXPERIMENTALStandard therapy of Imatinib 400 mg QD and asciminib 60 mg QD
Asciminb 20 mg BIDEXPERIMENTALStandard therapy of Nilotinib 300 mg BID and asciminib 20 mg BID
Asciminib 40 mg QDEXPERIMENTALStandard therapy of Nilotinib 300 mg BID and asciminib 40 mg QD
Asciminib 80 mg QDEXPERIMENTALStandard therapy of Dasatinib 100 mg QD and asciminib 80 mg QD
Asciminib 80 mg QD monotherapyEXPERIMENTALAsciminib 80 mg QD as a single agent
open-labelEXPERIMENTALInduction phase: Imatinib mesylate - starting with 100 mg/day with increase of 100 mg/day each other week up to maximum tolerable dose or 400 mg/day whichever occurred first. For the responders and in absence of toxicity, the treatment will be maintained up to one year. Salvage phase: Nilotinib - starting with 200 mg/day with increase of 200 mg/day each other week up to maximum tolerable dose or 800 mg/day whichever occurred first. In absence of toxicity, the treatment will be maintained up to one year.
drugEXPERIMENTALImatinib 800 mg
Imatinib mesylate + PaclitaxelEXPERIMENTALPaclitaxel 90 mg/m2 IV on days 3, 10, 17 Imatinib (Gleevec) 600 mg/day, oral administration in 4-day pulses bracketing each paclitaxel infusion (days 1-4; 8-11; 15-18) Cycle length: 28 days Number of cycles: up to 6
400 mg daily of Imatinib MesylateEXPERIMENTALAll patients were treated with imatinib mesylate at a target dose of 400 mg daily by mouth for 12 months. Dose modifications and interruptions were made for AE and were recorded. After 12 months of treatment, imatinib was stopped for 3 months. Patients were reassessed and offered entrance to an extension phase of the trial.
STI571+ pioglitazone+ etoricoxib + dexamethasone + treosulfaneEXPERIMENTALSTI571 (imatinib) 400mg po daily + pioglitazone 60mg po daily + etoricoxib 60mg po daily + dexamethasone 1mg po daily + treosulfane 500mg po daily for 24 weeks
Treatment ArmEXPERIMENTALImatinib
STI571EXPERIMENTALSTI571
All PatientsEXPERIMENTALOpen label extension
Hormone Refractory Prostate CancerEXPERIMENTALGleevec + Docetaxel: Daily Oral Gleevec in Combination with Every-Three-Week Intravenous Docetaxel
imatinib mesylate (STI571)EXPERIMENTAL -
1EXPERIMENTALGleevec and Taxotere
Imatinib 400mmg OD +MTXACTIVE_COMPARATOR -
Imatinib Placebo + MTXPLACEBO_COMPARATOR -
Mono-Therapy GleevecEXPERIMENTALGleevec administered orally at a pre-determined dose once daily.
imatinib mesylate 400 mgEXPERIMENTAL400 mg once daily
imatinib mesylate 600 mgEXPERIMENTAL600 mg once daily
AEXPERIMENTALImatinib and PTK/ZK222584
Group 1EXPERIMENTALSSc patients receiving Imatinib (Gleevec, up to 600 mg) QD PO for up to 1 year.
Drug-Drug interactionOTHER -
2EXPERIMENTALPts not receiving EIACDs

Interventions

NameTypeDescription
ImatinibDRUGComes in 100 mg and 400 mg tablets and taken orally
NilotinibDRUGComes in 150 mg and 200 mg capsules and taken orally
BosutinibDRUGComes in 100 mg and 400 mg tablets and taken orally
DasatinibDRUGComes in 20 mg, 50 mg, 70 mg and 100 mg tablets and taken orally
AsciminibDRUGComes in 40 mg tablets and taken orally
QTI571DRUGQTI571 200mg up to 400mg (depending on tolerability) taken orally, once a day.
SildenafilDRUGOral Administration
BosentanDRUGOral Administration
imatinib mesylateDRUGTwo or 4 imatinib mesylate (QTI571) 100 mg film coated tablets once daily.
PlaceboDRUGPlacebo to imatinib 100 mg film coated tablets
HydroxyureaDRUG -
Nilotinib 300 mgDRUGNilotinib 300 mg BID and asciminib 20 mg BID or 40 mg QD
Imatinib Mesylate and NilotinibDRUGFor patients under Imatinib Mesylate: the total length of follow up period for those patients will be for 52 weeks following IM treatment, with a follow up at weeks IM4, IM8, IM12, IM26, IM38 and IM52. For patients requiring a salvage phase: after the switch for nilotinib, the total length of follow up period for this phase will be for 52 weeks following nilotinib treatment, with a follow up at weeks nilo4, nilo8, nilo12, nilo26, nilo38 and nilo52.
high-dose imatinibDRUGStudy patients will receive 400 mg twice daily oral administration in the morning and the evening.
PaclitaxelDRUGPaclitaxel 90 mg/m2 IV on days 3, 10, 17 Cycle length: 28 days Number of cycles: up to 6
TreosulfaneDRUG -
etoricoxibDRUG -
pioglitazoneDRUG -
dexamethasoneDRUG -
GleevecDRUGImatinib-400mg po qd for 10 days to commence on day 3. On day 0, Docetaxel 60mg/m\^2 administered IV
DocetaxelDRUG60 mg/m\^2 administered IV on day 0
Gleevec and TaxotereDRUGGleevec 600 mg QD for 12 months Taxotere IV 30 mg/m2 on day 1, 8 and 15
MethotrexateDRUG -
Imatinib PlaceboDRUG -
IrinotecanDRUG -
CarboplatinDRUG -
Imatinib and PTK/ZK222584DRUGImatinib and PTK/ZK will each be administered orally daily. Two dose levels of imatinib (400 mg and 600 mg) will be tested with 4 dose levels of PTK/ZK (250 mg, 500 mg, 750 mg, and 1000 mg). 3 patients will be accrued at each individual dose level. If dose-limiting toxicities are reported in ≤ 1/3 patients, the dose level will be expanded to 6 patients. If dose-limiting toxicities are reported in \< 2/6 patients, then dose escalation will continue. If ≥ 2/6 patients experience dose-limiting toxicity, the next lower dose will be considered the maximum tolerated dose and will be expanded to a total of 12 patients. There will be no intrapatient dose escalations. Patients may continue to receive treatment until unacceptable toxicity or disease progression is encountered.
Imatinib/AcetaminophenDRUG -
Gleevec, RAD001, and HydroxyureaDRUGDose of Gleevec will be 400 mg in 1st cohort \& will be increased to 600 mg po/day \& then to 400 mg bid in successive cohorts. Prescribed dose should be administered orally, w large glass of water. Pts should not eat large or high fat meal within 1 hour before or after gleevec dosing. Doses of 600 mg or less should be administered once daily, whereas doses greater than 600 mg should be administered as equal doses twice day. It is recommended that pts take their prescribed Gleevec at same time that they take their prescribed RAD001 \& hydroxyurea, however, 30-60 minute interval between agents is acceptable if required for practical or other compliance issues.
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Eligibility Criteria

Age Range18 Years to 100 Years
SexALL
Healthy VolunteersNo
Study Sites110

Inclusion Criteria for treatment period: Participants eligible for inclusion in this study must meet all of the following criteria: * Male or female patients ≥ 18 years of age. * Participants with CML-CP within 3 months of diagnosis. * Diagnosis of CML-CP (ELN 2020 criteria) with cytogenetic confi...

Countries:United StatesAustraliaAustriaBelgiumBulgariaCanadaChinaCzechiaDenmarkFinlandFranceGermanyHungaryIndiaIsraelItalyJapanMalaysiaNetherlandsNorwayPortugalSingaporeSlovakiaSouth KoreaSpainSwedenSwitzerlandTaiwanUnited KingdomLithuaniaAlgeriaEgyptJordanLebanonRussiaSaudi ArabiaSouth AfricaThailandTunisiaTurkey (Türkiye)Brazil
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Recent Changes (Last 90 Days)

LOWAug 28, 2026NCT04971226lastUpdatePostDate: changed
LOWAug 28, 2026NCT04971226lastUpdatePostDate: changed

Frequently asked questions about QTI571

What is QTI571 used for?

QTI571 is an investigational small molecule being developed for severe pulmonary arterial hypertension, a condition of high blood pressure in the arteries of the lungs. It is currently in Phase 3 clinical development and is not yet approved by regulatory authorities.

Who makes QTI571?

QTI571 is being developed by Novartis AG, a global pharmaceutical company traded on the New York Stock Exchange under the ticker symbol NVS. The company is conducting clinical research to evaluate the drug's safety and efficacy in patients with severe pulmonary arterial hypertension.

What phase is QTI571 in?

QTI571 is in Phase 3 clinical development for severe pulmonary arterial hypertension. It is an investigational drug, meaning it has not yet received regulatory approval and is still being studied in clinical trials to assess its potential as a treatment for this condition.

What clinical trials is QTI571 in?

QTI571 has been studied in a completed Phase 3 clinical trial registered as NCT02042014. This open-label, multi-center study was designed to provide QTI571 to patients with severe pulmonary arterial hypertension in Japan who had participated in a prior extension study. The trial enrolled 8 participants.

Is QTI571 the same as any other drug?

QTI571 is the investigational name for this drug candidate developed by Novartis. No alternative names have been reported in the available clinical trial information, and it is identified solely by the designation QTI571 in the context of its development for severe pulmonary arterial hypertension.