NCT01999738

Folic Acid-Tubulysin Conjugate EC1456 In Patients With Advanced Solid Tumors

A Phase I A/B Study of the Folic Acid-Tubulysin Conjugate EC1456 In Patients With Advanced Solid Tumors

• Status: Completed
• Phase: Phase 1
• Study type: Interventional
• Enrollment: 93 (actual)
• Sponsor: Endocyte · Industry
• Sex: All
• Age: 18 Years
• Healthy volunteers: Not accepted

Summary

Phase 1A/B, multicenter, open-label, non-randomized, dose-escalation oncology study to evaluate the administration of EC1456 in advanced solid tumors. In part A, EC1456 will be dose escalated on 4 concurrently enrolling schedules. FR-positive expression on a 99mTc-etarfolatide scan is not required for inclusion in Part A. Part B of the study will confirm the maximum tolerated dose (MTD) and the recommended Phase 2 (RP2) dose of EC1456, and evaluate the efficacy of EC1456 in NSCLC all subtype patient populations with FR-positive cancer in up to three schedules (i.e., twice weekly, once weekly, and four times weekly). FR-positive expression on a 99mTc-etarfolatide scan is required for inclusion in Part B. Minimum length of patient participation is anticipated to be 10 weeks (two 3-week cycles followed by a 30 day follow-up period).

Detailed description

In part A, EC1456 will be dose escalated on 4 concurrently enrolling schedules. Treatment 1 is EC1456 BIW on Days 1, 4, 8, and 11 of a 3-week schedule (BIW); Treatment 2 is EC1456 QW on Days 1 and 8 of a 3-week schedule (QW); Treatment 3 is EC1456 QW on Days 1, 8, and 15 of a 3-week schedule (CWD) and Treatment 4 is EC1456 QIW on Days 1, 2, 3, 4, 8, 9, 10, and 11 of a 3-week schedule (QIW). In part B, EC1456 will be dosed on 3 concurrently enrolling schedules: Treatment 5 is EC1456 BIW. Once a dose is determined in Part A, Part B will begin with 3-6 subjects who will receive consecutive day dosing on Days 1, 2, 8, and 9 of a 3-week schedule. If this is not tolerated, the BIW cohort will continue with dosing on Days 1, 4, 8, and 11 of a 3-week schedule; Treatment 6 is EC1456 QW on Days 1 and 8 of a 3-week schedule or CWD on Days 1, 8 and 15 of a 3-week schedule; Treatment 7 is EC1456 QIW on Days 1, 2, 3, 4, 8, 9, 10, and 11 of a 3-week schedule for at least two cycles. If the patient is eligible to continue treatment (based upon treatment response and tolerability), he/she may opt to continue on the QIW schedule or change to the Treatment 6 regimen schedule (once its MTD and schedule have been determined).

Conditions

• Solid Tumors
• Non Small Cell Lung Carcinoma

Interventions

Type	Name	Description
DRUG	EC1456 and EC20	EC1456 is small molecule drug conjugate of folic acid and tubulysin B hydrazide (TubBH) that specifically binds to the membrane-bound FR and gains entry into the cell via endocytosis. EC20 is Etarfolatide, a conjugate of folic acid and a tripeptide moiety that can efficiently chelate the radioisotope 99mTechnetium (99mTc). When etarfolatide is labeled with 99mTc, the product (99mTc-etarfolatide) is able to quantify FR expressing tissues with SPECT imaging.

Timeline

• Start date: 2013-10-01
• Primary completion: 2017-12-31
• Completion: 2018-04-26
• First posted: 2013-12-03
• Last updated: 2019-02-07

Locations

16 sites across 1 country: United States

Regulatory

• FDA-regulated drug study