A Phase 1/2, Open-Label, Multi-Center, First-in-Human Study of the Safety, Tolerability, Pharmacokinetics, and Anti-Tumor Activity of TPX-0005 in Patients with Advanced Solid Tumors Harboring ALK, ROS1, or NTRK1-3 Rearrangements.
Phase 1 Dose Escalation:
(1)To determine the first cycle dose-limiting toxicities (DLTs) of repotrectinib given to adult subjects with advanced solid malignancies harboring an ALK, ROS1, NTRK1, NTRK2, or NTRK3 gene rearrangement.
(2)To determine the maximum tolerated dose (MTD) of repotrectinib in adult subjects with advanced solid malignancies harboring an ALK, ROS1, NTRK1, NTRK2, or NTRK3 gene rearrangement.
(3)To determine the biologically effective dose and recommended Phase 2 dose (RP2D) of repotrectinib for adult subjects with advanced solid malignancies harboring an ALK, ROS1, NTRK1, NTRK2, or NTRK3 gene rearrangement.
Phase 2 Study:
(1)To determine the confirmed ORR as assessed by Blinded Independent Central Review (BICR) of repotrectinib in each subject population expansion cohort of advanced solid tumors that harbor an ALK, ROS1, NTRK1, NTRK2, or NTRK3 gene rearrangement.
Phase 1 Dose Escalation:
(1)To evaluate the safety and tolerability of repotrectinib at various doses in subjects with advanced solid tumors that harbor an ALK, ROS1, NTRK1, NTRK2, or NTRK3 gene rearrangement.
(2)To determine the effect of food on the pharmacokinetics (PK) of repotrectinib.
(3)To determine the preliminary objective response rate by BICR (ORR) and clinical benefit rate (CBR) of repotrectinib, in subjects with advanced solid tumors that harbor an ALK, ROS1, NTRK1, NTRK2, or NTRK3 gene rearrangement.
(4)To evaluate the potential of repotrectinib to induce cytochrome P450 3A (CYP3A) using midazolam as a probe substrate.
Phase 2 Study:
(1)To determine the DOR, time to response (TTR), and clinical benefit rate (CBR) of repotrectinib, as assessed by BICR, in each subject population expansion cohort of advanced solid tumors that harbor an ALK, ROS1, NTRK1, NTRK2, or NTRK3 gene rearrangement.
(2)To estimate the progression-free survival (PFS) and overall survival (OS) of subjects treated with repotrectinib with advanced solid tumorsthat harbor an ALK, ROS1, NTRK1, NTRK2, or NTRK3 gene rearrangement.
(3)To evaluate the safety and tolerability of repotrectinib when
administered at the RP2D in subjects with advanced solid tumors thatmharbor an ALK, ROS1, NTRK1, NTRK2, or NTRK3 gene rearrangement.
(4)To determine the intracranial objective response rate (IC-ORR) of repotrectinib and Central Nervous System PFS (CNS-PFS) in subjects presenting with measurable brain metastases at baseline, using RANO- BM assessment
(5)To assess the population PK of repotrectinib and to explore correlations
between PK, response, and/or safety findings in subjects with advanced solid tumors with an ALK, ROS1, NTRK1, NTRK2, or NTRK3 gene rearrangement
(6)To assess treatment-related symptoms and general health status using validated instruments of subject-reported outcomes (EORTC-QLQ-C30 and LC-13 when applicable) in subjects treated with repotrectinib
- Rutgers Cancer Institute of New Jersey
PHASE 1
Key Inclusion Criteria
1. Histologically or cytologically confirmed diagnosis of locally advanced, or metastatic
solid tumor (including primary CNS tumors) (Stage IV, American Joint Committee on
Cancer v.7) that harbors an ALK, ROS1, NTRK1, NTRK2, or NTRK3 gene rearrangement by
protocol specified tests.
2. ECOG PS 0-1.
3. Age ≥18 (or age ≥ 20 of age as required by local regulation).
4. Capability to swallow capsules intact (without chewing, crushing, or opening).
5. At least 1 measurable target lesion according to RECIST version 1.1. CNS-only
measurable disease as defined by RECIST version 1.1 is allowed.
6. Prior cytotoxic chemotherapy is allowed.
7. Prior immunotherapy is allowed.
8. Resolution of all acute toxic effects (excluding alopecia) of any prior anti-cancer
therapy to National Cancer Institute Common Terminology Criteria for Adverse Events
(NCI CTCAE) Version 4.03 Grade less than or equal to 1.
9. Patients with asymptomatic CNS metastases (treated or untreated) and/or asymptomatic
leptomeningeal carcinomatosis are eligible to enroll if they satisfy the protocol
specified criteria.
10. Baseline laboratory values fulfilling the following requirements:Absolute neutrophils
count (ANC) ≥1500/mm3 (1.5 × 109/L); Platelets (PLTs) ≥100,000/mm3 (100 × 109/L);
Hemoglobin ≥ 9.0 g/dL transfusions are allowed; Serum creatinine or creatinine
clearance Within normal limits or > 40 mL/min; Total serum bilirubin < 1.5 × ULN;
Liver transaminases (ASTs/ALTs) < 2.5 × ULN; < 5 × ULN if liver metastases are present
Alkaline phosphatase (ALP); < 2.5 × ULN; < 5 × ULN if liver and/or bone metastasis are
present; Serum calcium, magnesium, and potassium Normal or CTCAE grade ≤ 1 with or
without supplementation
11. Life expectancy ≥ 3 months.
PHASE 2 Key Inclusion Criteria
1. Histologically or cytologically confirmed diagnosis of locally advanced, or metastatic
solid tumor (including primary CNS tumors) that harbors a ROS1, or NTRK1-3 gene
fusion.
2. Subject must have a documented ROS1 or NTRK1-3 gene fusion determined by tissue-based
local testing using either:
1. a next-generation sequencing (NGS) or quantitative polymerase chain reaction
(qPCR) test will be accepted to determine molecular eligibility.
• Adequate tumor tissue needs to be sent to the Sponsor designated central
diagnostic laboratory for retrospective confirmation by a central diagnostic
laboratory test selected by the Sponsor.
OR
2. a fluorescence in situ hybridization (FISH) test AND prospective confirmation of
fusion status by a central diagnostic laboratory test selected by the Sponsor
PRIOR to enrollment will be accepted to determine molecular eligibility.
- Adequate tumor tissue must be sent to the Sponsor designated central
diagnostic laboratory for prospective confirmation by a central diagnostic
laboratory test selected by the Sponsor PRIOR to enrollment.
3. Eastern Cooperative Oncology Group (ECOG) Performance Status 0-1.
4. Age ≥12 (or age ≥ 20 as required by local regulation).
5. Willing and able to provide written institutional review board (IRB)/institutional
ethics committee-approved Informed Consent or an Assent signed by a parent or legal
guardian for subjects age 12 to 17.
6. At least 1 measurable target lesion according to RECIST (v1.1) prospectively confirmed
by Blinded Independent Central Radiology Review (BICR), selected by Sponsor, PRIOR to
enrollment. Subjects with CNS-only measurable disease ≥10 mm as defined by RECIST
(v1.1) are eligible.
7. Subjects with advanced solid tumors harboring ROS1, NTRK1, NTRK2, or NTRK3
rearrangement will be assigned into 6 distinct expansion (EXP) cohorts provided all
inclusion and exclusion criteria are met.
i. EXP-1: ROS1 TKI-naïve ROS1+ NSCLC ii. EXP-2: 1 Prior ROS1 TKI and 1 Platinum based
chemo ROS1+ NSCLC iii. EXP-3: 2 Prior ROS1 TKIs ROS1+ NSCLC (No Chemo or IO) iv.
EXP-4: 1 Prior ROS1 TKI ROS1+ NSCLC (No Chemo or IO) v. EXP-5: TRK TKI-naïve NTRK+
solid tumors vi. EXP-6: TRK TKI-pretreated NTRK+ solid tumors
8. Subjects with asymptomatic CNS metastases (treated or untreated) and/or asymptomatic
leptomeningeal carcinomatosis are eligible to enroll if they satisfy the protocol
specified criteria.
9. Baseline laboratory values fulfilling the following requirements:Absolute neutrophils
count (ANC) ≥1500/mm3 (1.5 × 109/L); Platelets (PLTs) ≥100,000/mm3 (100 × 109/L);
Hemoglobin ≥ 9.0 g/dL transfusions are allowed; Serum creatinine or creatinine
clearance > 40 mL/min; Total serum bilirubin < 1.5 × ULN; Liver transaminases
(ASTs/ALTs) < 2.5 × ULN; < 5 × ULN if liver metastases are present Alkaline
phosphatase (ALP); < 2.5 × ULN; < 5 × ULN if liver and/or bone metastasis are present;
Serum calcium, magnesium, and potassium Normal or CTCAE grade ≤ 1 with or without
supplementation
10. Life expectancy ≥ 3 months.
Key Exclusion Criteria PHASE 1 and PHASE 2
1. Concurrent participation in another therapeutic clinical trial.
2. Symptomatic brain metastases or leptomeningeal involvement.
3. History of previous cancer, except for squamous cell or basal-cell carcinoma of the
skin, or any in situ carcinoma that has been completely resected, requiring therapy
within the previous 2 years.
4. Major surgery within 4 weeks of start of repotrectinib treatment. Radiation therapy
(except palliative to relieve bone pain) within 2 weeks of study entry. Palliative
radiation (≤10 fractions) must have been completed at least 48 hours prior to study
entry
5. Clinically significant cardiovascular disease (either active or within 6 months prior
to enrollment): myocardial infarction, unstable angina, coronary/peripheral artery
bypass graft, symptomatic congestive heart failure (New York Heart Association
Classification Class ≥ II), cerebrovascular accident or transient ischemic attack,
symptomatic bradycardia, requirement for anti-arrhythmic medication. Ongoing cardiac
dysrhythmias of NCI CTCAE grade ≥2
6. Any of the following cardiac criteria:
Mean resting corrected QT interval (ECG interval measured from the onset of the QRS
complex to the end of the T wave) for heart rate (QTcF) > 470 msec obtained from 3
ECGs, using the screening clinic ECG machine-derived QTc value Any clinically
important abnormalities in rhythm, conduction or morphology of resting ECG (e.g.,
complete left bundle branch block, third degree heart block, second degree heart
block, PR interval > 250 msec) Any factors that increase the risk of QTc prolongation
or risk of arrhythmic events such as heart failure, hypokalemia, congenital long QT
syndrome, family history of long QT syndrome, or any concomitant medication known to
prolong the QT interval.
7. Known active infections (bacterial, fungal, viral including HIV positivity).
8. Gastrointestinal disease (e.g., Crohn's disease, ulcerative colitis, or short gut
syndrome) or other malabsorption syndromes that would impact drug absorption.
9. Peripheral neuropathy of CTCAE ≥grade 2.
10. History of extensive, disseminated, bilateral, or presence of CTCAE grade 3 or 4
interstitial fibrosis or interstitial lung disease including a history of pneumonitis,
hypersensitivity pneumonitis, interstitial pneumonia, interstitial lung disease,
obliterative bronchiolitis, and pulmonary fibrosis. Subjects with history of prior
radiation pneumonitis are not excluded.
Please note that we have obtained the inclusion and exclusion criteria information from the National Institutes of Health’s clinical trials web site ClinicalTrials.gov. The listed criteria may not necessarily reflect recent amendments to the protocol and the current criteria.
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