Study of TPX-0046, A RET/SRC Inhibitor in Adult Subjects With Advanced Solid Tumors Harboring RET Fusions or Mutations

STATUS

Recruiting
End date

Mar 17, 2025
participants needed

362
sponsor

Turning Point Therapeutics, Inc.

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Updated on 18 February 2022

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metastasis

RET

brain metastases

brain metastasis

solid tumour

cns tumors

Summary

A phase 1/2, first-in-human, open-label study to determine the safety, tolerability, PK, and preliminary efficacy of the novel RET/SRC inhibitor TPX-0046 in adult subjects with advanced or metastatic solid tumors harboring RET mutations or alterations. The study consists of three portions: 1) Phase 1 Dose Escalation and Food Effect Sub-study, and 2) Phase 1 dose expansion and 3) Phase 2 efficacy evaluation.

Description

Phase 1 Dose Escalation: To evaluate the overall safety profile, characterize the PK profiles and assess the preliminary efficacy of TPX-0046 in adults subjects with advanced solid tumors harboring oncogenic RET fusions or mutations.

Food Effect Sub-Study: To determine the effect of food on PK of TPX-0046 in adult subjects with advanced or metastatic solid tumors harboring oncogenic RET fusions or mutations.

Phase 2 Efficacy Evaluation: To determine the overall safety and anti-tumor efficacy of TPX-0046 in defined cohorts of subjects with advanced/metastatic solid tumors harboring oncogenic RET fusions or mutations.

Details

Condition	Non Small Cell Lung Cancer, Medullary Thyroid Cancer, RET Gene Mutation, Metastatic Solid Tumor, Advanced Solid Tumor
Treatment	TPX-0046
Clinical Study Identifier	NCT04161391
Sponsor	Turning Point Therapeutics, Inc.
Last Modified on	18 February 2022

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Eligibility		Yes	No	Not Sure
Inclusion Criteria
	Age 18 (or age 20 as required by local regulation)
	Histological or cytological confirmation of advanced/metastatic solid tumors harboring oncogenic RET fusions or mutations, who either have disease progression on, or are intolerant to standard therapy; OR are ineligible for standard therapy or for whom no standard therapy exists; OR are unlikely to tolerate or derive clinical benefit from standard therapy in the opinion of the Investigator OR have declined standard therapy
	ECOG performance status 1
	Existence of measurable or evaluable disease (according to Response evaluation criteria in solid tumors [RECIST v1.1] criteria)
	Subjects with asymptomatic primary CNS tumors or brain metastases are eligible for the study if they meet protocol specified criteria
	Adequate organ function
	Life expectancy 12 weeks
Exclusion Criteria
	Locally advanced solid tumor that is a candidate for curative treatment through radical surgery and/or radiotherapy, or chemotherapy
	Presence or history of any other primary malignancy within 3 years other than a history of adequately treated basal or squamous cell carcinoma of the skin, or any adequately treated in situ carcinoma
	Major surgery within four weeks of the start of therapy
	Clinically significant cardiovascular disease (either active or within six months before 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 CTCAE version 5.0 grade 2
	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 (QTc) > 470 msec obtained from three 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, congenital long QT syndrome, family history of long QT syndrome, or any concomitant medication known to prolong the QT interval
	Known clinically significant active infections not controlled with systemic treatment (bacterial, fungal, viral including HIV positivity)
	Gastrointestinal disease (e.g., Crohn's disease, ulcerative colitis, or short gut syndrome) or other malabsorption syndromes that would impact drug absorption
	Subjects being treated with or anticipating the need for treatment with strong CYP3A4 inhibitors or inducers
	Subjects with current or anticipated need for drugs that are sensitive CYP2C9 substrates with narrow therapeutic indices

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Study of TPX-0046, A RET/SRC Inhibitor in Adult Subjects With Advanced Solid Tumors Harboring RET Fusions or Mutations