E.1 Medical condition or disease under investigation |
E.1.1 | Medical condition(s) being investigated |
Thyroid Cancer, Non-Small Cell Lung Cancer (NSCLC) and Other Advanced Solid Tumors |
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E.1.1.1 | Medical condition in easily understood language |
Thyroid Cancer, Non-Small Cell Lung Cancer (NSCLC) and Other Advanced Solid Tumors |
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E.1.1.2 | Therapeutic area | Diseases [C] - Cancer [C04] |
MedDRA Classification |
E.1.2 Medical condition or disease under investigation |
E.1.2 | Version | 21.0 |
E.1.2 | Level | LLT |
E.1.2 | Classification code | 10066914 |
E.1.2 | Term | Thyroid tumor |
E.1.2 | System Organ Class | 100000004864 |
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E.1.2 Medical condition or disease under investigation |
E.1.2 | Version | 20.0 |
E.1.2 | Level | LLT |
E.1.2 | Classification code | 10025044 |
E.1.2 | Term | Lung cancer |
E.1.2 | System Organ Class | 100000004864 |
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E.1.2 Medical condition or disease under investigation |
E.1.2 | Version | 21.1 |
E.1.2 | Level | LLT |
E.1.2 | Classification code | 10065252 |
E.1.2 | Term | Solid tumor |
E.1.2 | System Organ Class | 100000004864 |
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E.1.2 Medical condition or disease under investigation |
E.1.2 | Version | 21.1 |
E.1.2 | Level | LLT |
E.1.2 | Classification code | 10029514 |
E.1.2 | Term | Non-small cell lung cancer NOS |
E.1.2 | System Organ Class | 100000004864 |
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E.1.3 | Condition being studied is a rare disease | No |
E.2 Objective of the trial |
E.2.1 | Main objective of the trial |
Phase 1: • To determine the maximum tolerated dose (MTD) and recommended Phase 2 dose (RP2D) of pralsetinib. • To determine the safety and tolerability of pralsetinib.
Phase 2 • To determine the ORR by RECIST v1.1 (or RANO, if appropriate for tumor type) by disease type, and/or RET-altered status (including patients treated at MTD/RP2D in Phase 1), and/or prior treatment status specified in enrollment group definition, if appropriate. • To further define the safety and tolerability of pralsetinib |
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E.2.2 | Secondary objectives of the trial |
Phase 1 -ORR by RECIST or RANO for all patients treated with IMP according to disease type, RET-altered, prior treatment status, if appropriate. Patients initially treated with MTD/RP2D will be pooled with Phase 2 patients -BL RET gene status in plasma +/or tumor tissue + correlate with ORR, CBR, DCR + DOR -IMP PK profile + correlate drug exposure with safety -IMP PDs, incl changes in blood calcitonin + CEA in MTC patients only + changes in tumor DUSP6 and SPRY4 levels in all patients Phase 2 -Additional measures DOR, CBR, DCR, PFS + OS in all patients by disease type, RET-altered status, prior treatment status. Patients treated at MTD/RP2D in Phase 1 will be pooled with Phase 2 patients -BL RET gene status in plasma +/or tumor tissue + correlate with ORR, CBR, DOR, + DCR -IMP PK profile + correlate drug exposure with safety assessments, incl changes in ECG + efficacy -IMP PDs, incl changes in blood calcitonin + CEA in MTC patients only -Brain activity in NSCLC patients |
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E.2.3 | Trial contains a sub-study | No |
E.3 | Principal inclusion criteria |
1. Patient is ≥ 18 years of age. 2. Diagnosis during dose escalation (Phase 1) – Pathologically documented, definitively diagnosed non-resectable advanced solid tumor. • All patients treated at doses > 120 mg per day must have MTC, or a RET-altered solid tumor per local assessment of tumor tissue and/or blood. • Phase 1 enrichment patients must have MTC or a RET-altered solid tumor per local assessment of tumor tissue and/or blood. 3. Diagnosis during dose expansion (Phase 2) – All patients (with the exception of patients with MTC enrolled in Groups 3 and 4) must have an oncogenic RET fusion or mutation (excluding synonymous, frameshift, and nonsense mutations) solid tumor, as determined by local or central testing of tumor or circulating tumor nucleic acid in blood; as detailed below. • Group 1 – patients must have pathologically documented, definitively diagnosed locally advanced or metastatic NSCLC with a RET fusion previously treated with a platinum-based chemotherapy. • Group 2 – patients must have pathologically documented, definitively diagnosed locally advanced or metastatic NSCLC with a RET fusion not previously treated with a platinum-based chemotherapy, including those who have not had any systemic therapy. Prior platinum chemotherapy in the neoadjuvant and adjuvant setting is permitted if the last dose of platinum was 4 months or more before the first dose of study drug. • Group 3 – patients must have pathologically documented, definitively diagnosed advanced MTC that has progressed within 14 months prior to the Screening Visit and was previously treated with cabozantinib and/or vandetanib. • Group 4 – patients must have pathologically documented, definitively diagnosed advanced MTC that has progressed within 14 months prior to the Screening Visit and was not previously treated with cabozantinib or vandetanib. • Group 5 – patients must have a pathologically documented, definitively diagnosed advanced solid tumor with an oncogenic RET fusion, have previously received SOC appropriate for their tumor type (unless there is no accepted standard therapy for the tumor type or the investigator has determined that treatment with standard therapy is not appropriate), and must not eligible for any of the other groups. • Group 6 – patients must have a pathologically documented, definitively diagnosed advanced solid tumor with an oncogenic RET fusion or mutation, previously treated with a selective TKI that inhibits RET, such as selpercatinib. • Group 7: patients must have a pathologically documented, definitively diagnosed advanced solid tumor with an oncogenic RET mutation previously treated with SOC appropriate for the tumor type and not eligible for any of the other groups. 4. Patient must have non-resectable disease. Prior to Protocol Amendment 9, patients must have progressed following standard therapy or has not adequately responded to standard therapy, or the patient must be intolerant to, or the Investigator has determined that treatment with standard therapy is not appropriate, or there must be no accepted standard therapy for their disease. 5. Dose expansion (Phase 2) patients in all groups (except group 7) must have measurable disease per RECIST v1.1 (or RANO, if appropriate for tumor type). 6. Patient agrees to provide tumor tissue (archived, if available or a fresh biopsy) for RET status confirmation and is willing to consider an on-treatment tumor biopsy, if considered safe and medically feasible by the treating Investigator. For Phase 2, Group 6, patients are required to undergo a pretreatment biopsy to define baseline RET status in tumor tissue. 7. Patient has Eastern Cooperative Oncology Group (ECOG) performance status (PS) of 0-1. 8. Patient or legal guardian provides informed consent to participate in the study. |
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E.4 | Principal exclusion criteria |
1. Patient's cancer has a known primary driver alteration other than RET Investigators should discuss enrollment with Sponsor regarding comutations 2. Patient has any of the following within 14 d prior to the first dose of IMP: a. Platelet count < 75 × 109/L b. Absolute neutrophil count < 1.0 × 109/L c. Hemoglobin < 9.0 g/dL red blood cell transfusion and erythropoietin may be used to reach at least 9.0 g/dL, but must have been administered at least 2 weeks prior to 1st IMP dose d. AST or ALT > 3 × ULN if no hepatic metastases are present; > 5 × ULN if hepatic metastases are present e. Total bilirubin > 1.5 × ULN; > 3 × ULN with direct bilirubin > 1.5 × ULN in presence of Gilbert's disease f. Estimated (Cockroft-Gault formula) or measured creatinine clearance < 40 mL/min g. Total serum phosphorous > 5.5 mg/dL 3. Patient has a QTcF > 470 msec. Patient has a history of prolonged QT syndrome or Torsades de pointes. Patient has a familial history of prolonged QT syndrome 4. Patient has clinically significant uncontrolled, cardiovascular disease including congestive heart failure Grade III or IV according to the NY Heart Association classification; myocardial infarction or unstable angina within the previous 6 months, uncontrolled hypertension, or clinically significant, uncontrolled arrhythmias, including bradyarrhythmias that may cause QT prolongation 5. Patient has CNS metastases or a primary CNS tumor associated with progressive neurological symptoms or requires increasing doses of corticosteroids to control the CNS disease. If a patient requires corticosteroids for management of CNS disease, the dose must have been stable for the 2 weeks preceding C1D1 6. Presence of clinically symptomatic interstitial lung disease or interstitial pneumonitis, including radiation pneumonitis 7. Patient received the following anti-cancer therapy: a. Any systemic anticancer therapy (except for immunotherapy or other antibody therapies) and all forms of radiotherapy within 14 d or 5 halflives prior to first IMP dose. IMP may be started within these washout periods if considered by the Investigator to be safe and within the best interest of the patient prior Sponsor approval b. Any immunotherapy or other antibody therapy within 28 d prior to the 1st dose of IMP (immune related toxicities must have resolved to < Grade 2 prior to starting IMP) 8. Dose expansion patients in Groups 1-5 and 7 (Phase 2): patient has previously received treatment with a selective RET inhibitor such as selpercatinib 9. Patient received neutrophil growth factor support within 14 d of 1st IMP dose 10. Patient requires treatment with a prohibited medication or herbal remedy that cannot be discontinued at least 2 weeks before start of IMP administration. IMP may be started within 14 d or 5 half-lives of prior therapy if considered by the Investigator to be safe and within the best interest of the patient, with prior Sponsor approval 11. Patient has had a major surgical procedure within 14 d of the first IMP dose 12. Patient has a history of another primary malignancy that has been diagnosed or required therapy (except maintenance anti-hormonal therapy) within the past year. The following prior malignancies are notNot exclusionary are: completely resected basal cell and squamous cell skin cancer, curatively treated localized prostate cancer, curatively treated localized thyroid cancer, and completely resected carcinoma in situ of any site 13. Patient is unwilling or unable to comply with scheduled visits, drug administration plan, laboratory tests, or other study procedures and study restrictions 14. Women who are unwilling, if not postmenopausal or surgically sterile, to abstain from sexual intercourse or employ highly effective contraception during IMP administration period and for at least 14 days after the last IMP dose. Men who are unwilling, if not surgically sterile, to abstain from sexual intercourse or employ highly effective contraception during the IMP administration period and for at least 7 days after the last IMP dose 15. Pregnant females, as documented by a serum β-hCG pregnancy test consistent with pregnancy, obtained within 7 days prior to the first dose of study drug. Females with β-hCG values that are within the range for pregnancy but are not pregnant (false-positives) may be enrolled with written consent of the Sponsor, after pregnancy has been ruled out. Females of non-childbearing potential (postmenopausal for more than 1 year; bilateral tubal ligation; bilateral oophorectomy; hysterectomy) do not require a serum β-hCG test 16. If female, patient is breastfeeding 17.Patient has prior or ongoing clinically significant illness, medical condition, surgical history, physical finding, or laboratory abnormality that, in the Investigators/Sponsors opinion, could affect the safety of the patient; alter the absorption, distribution, metabolism, or excretion of the study drug; or impair the assessment of study results |
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E.5 End points |
E.5.1 | Primary end point(s) |
Phase 1 • MTD and RP2D (recommended Phase 2 dose) of pralsetinib. • Overall safety profile of pralsetinib, as assessed by the type, frequency, severity, timing, and relationship to study drug of any AEs, SAEs, changes in vital signs, ECGs, and safety laboratory tests. Phase 2 • ORR by patients' disease type, and/or RET-altered status if applicable, and/or prior treatment status if appropriate. • Overall safety profile of BLU-667, as assessed by the type, frequency, severity, timing, and relationship to study drug of any AEs, SAEs, changes in vital signs, ECGs, and safety laboratory tests. |
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E.5.1.1 | Timepoint(s) of evaluation of this end point |
- MTD and RP2D of pralsetinib– End of Cycle 1 in Phase 1 - Overall safety profile of pralsetinib– Safety assessments will be ongoing throughout all cycles. |
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E.5.2 | Secondary end point(s) |
Phase 1 • ORR for all pralsetinib treated patients according to patients' disease type and/or RET-altered status if applicable, and/or prior treatment status if appropriate. Patients initially treated with MTD/RP2D in Phase 1 will be pooled with Phase 2 patients accordingly. • RET gene status and correlation between RET gene status and ORR, CBR, DOR, PFS, OS, and DCR, and other measures of antineoplastic activity (in plasma and/or tissue) in all patients according to their disease type and/or RET-altered status, if applicable, and/or prior treatment status, if appropriate. • PK parameters of pralsetinib: Pharmacokinetic parameters of interest will include, as appropriate, maximum plasma drug concentration (Cmax), time to maximum plasma drug concentration (Tmax), time of last quantifiable plasma drug concentration (Tlast), area under the plasma concentration versus time curve from time 0 to 24 hours postdose (AUC0-24), plasma drug concentration at 24 hours postdose (C24); apparent volume of distribution (Vz/F), terminal elimination half-life (t½), apparent oral clearance (CL/F), and accumulation ratio (R). • Pharmacodynamic parameters of pralsetinib: changes in tumor/blood including, but not limited to, changes in blood calcitonin and CEA (MTC patients); and changes in tumor biomarker levels (DUSP6 and SPRY4) levels (all patients) Phase 2 • DOR, CBR, DCR, PFS, and OS in all patients by disease type and/or RET-altered status, if applicable, and/or prior treatment status, if appropriate. • RET gene status and correlation between RET gene status and ORR, CBR, DOR, DCR, and other measures of antineoplastic activity (in plasma and/or tissue) in all patients according to their disease type and/or RETaltered status, if applicable, and/or prior treatment status, if appropriate. • PK parameters of pralsetinib: Pharmacokinetic parameters of interest will include, as appropriate, maximum plasma drug concentration (Cmax), time to maximum plasma drug concentration (Tmax), time of last quantifiable plasma drug concentration (Tlast), area under the plasma concentration versus time curve from time 0 to 24 hours postdose (AUC0-24), plasma drug concentration at 24 hours postdose (C24); apparent volume of distribution (Vz/F), terminal elimination half-life (t½), apparent oral clearance (CL/F), and accumulation ratio (R). • ECG Assessment: In Phase 2, the effects of BLU-667 on ECG parameters will be evaluated for approximately 20 patients using 12- lead ECGs extracted from continuous recordings (12-lead Holter) on C1D1 and C1D15. Individual ECGs will be extracted in replicate from the 12-lead Holter recordings at specified time points and will be evaluated by a central laboratory. QT intervals will be measured from lead II and will be corrected for heart rate (QTc) using Fridericia's correction factors (QTcF). The primary QTc parameter will be QTcF. Secondary parameters (heart rate, PR, and QRS, and T-wave morphology) will also be evaluated. Potential effects of pralsetinib will be evaluated as change from predose baseline heart rate, PR, QRS, and QTcF by postdose time point. For the purpose of QT assessment, exposure-response analysis will be performed on the relationship between pralsetinib systemic levels and change in QTcF. • Pharmacodynamic parameters of BLU-667: changes in tumor/blood including, but not limited to, changes in blood calcitonin and CEA (MTC patients only). |
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E.5.2.1 | Timepoint(s) of evaluation of this end point |
– Blood samples collected on day 1 of Cycle 1 (through 24 hours post-dose of C1D1), C1D15 (through 24 hours post-dose of C1D15), and pre-dose on D 1 of C2-C4, and EOT. – Blood Samples collected at pre-dose of C1D1, C1D15, C2D1, C3D1 and every odd cycle thereafter, and EOT. Tumor sample collected at screening, C2D1, and EOT. - Blood Samples collected at pre-dose of C1D1, C1D15, C2D1, C3D1 and every odd cycle thereafter, and EOT. Tumor sample collected at screening, C2D1, and EOT. - MRI or CT scans for disease response assessment (per RECIST, version 1.1) at Screening, on D1 of every odd-numbered cycle starting with C3, and EOT. |
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E.6 and E.7 Scope of the trial |
E.6 | Scope of the trial |
E.6.1 | Diagnosis | No |
E.6.2 | Prophylaxis | No |
E.6.3 | Therapy | No |
E.6.4 | Safety | Yes |
E.6.5 | Efficacy | Yes |
E.6.6 | Pharmacokinetic | Yes |
E.6.7 | Pharmacodynamic | Yes |
E.6.8 | Bioequivalence | No |
E.6.9 | Dose response | Yes |
E.6.10 | Pharmacogenetic | No |
E.6.11 | Pharmacogenomic | No |
E.6.12 | Pharmacoeconomic | No |
E.6.13 | Others | No |
E.7 | Trial type and phase |
E.7.1 | Human pharmacology (Phase I) | Yes |
E.7.1.1 | First administration to humans | Yes |
E.7.1.2 | Bioequivalence study | No |
E.7.1.3 | Other | No |
E.7.1.3.1 | Other trial type description | |
E.7.2 | Therapeutic exploratory (Phase II) | Yes |
E.7.3 | Therapeutic confirmatory (Phase III) | No |
E.7.4 | Therapeutic use (Phase IV) | No |
E.8 Design of the trial |
E.8.1 | Controlled | No |
E.8.1.1 | Randomised | No |
E.8.1.2 | Open | Yes |
E.8.1.3 | Single blind | No |
E.8.1.4 | Double blind | No |
E.8.1.5 | Parallel group | No |
E.8.1.6 | Cross over | No |
E.8.1.7 | Other | No |
E.8.2 | Comparator of controlled trial |
E.8.2.1 | Other medicinal product(s) | No |
E.8.2.2 | Placebo | No |
E.8.2.3 | Other | No |
E.8.3 |
The trial involves single site in the Member State concerned
| No |
E.8.4 | The trial involves multiple sites in the Member State concerned | Yes |
E.8.4.1 | Number of sites anticipated in Member State concerned | 2 |
E.8.5 | The trial involves multiple Member States | Yes |
E.8.5.1 | Number of sites anticipated in the EEA | 11 |
E.8.6 Trial involving sites outside the EEA |
E.8.6.1 | Trial being conducted both within and outside the EEA | Yes |
E.8.6.2 | Trial being conducted completely outside of the EEA | No |
E.8.6.3 | If E.8.6.1 or E.8.6.2 are Yes, specify the regions in which trial sites are planned |
Hong Kong |
Korea, Republic of |
Singapore |
Taiwan |
United States |
Belgium |
France |
Germany |
Italy |
Netherlands |
Spain |
United Kingdom |
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E.8.7 | Trial has a data monitoring committee | Yes |
E.8.8 |
Definition of the end of the trial and justification where it is not the last
visit of the last subject undergoing the trial
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The end of the study is defined as the time that the last patient completes his/her last visit (LPLV), including assessments performed as part of PFS follow-up, if the patient enters the PFS follow-up part of the study |
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E.8.9 Initial estimate of the duration of the trial |
E.8.9.1 | In the Member State concerned years | 1 |
E.8.9.1 | In the Member State concerned months | 7 |
E.8.9.1 | In the Member State concerned days | 0 |
E.8.9.2 | In all countries concerned by the trial years | 5 |
E.8.9.2 | In all countries concerned by the trial months | 0 |
E.8.9.2 | In all countries concerned by the trial days | 0 |