Skip to content

Study of EC0489 for the Treatment of Refractory or Metastatic Tumors

A Phase I Study of EC0489 Administered Weeks 1 and 3 of a 4-Week Cycle

Status
Completed
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00852189
Enrollment
65
Registered
2009-02-26
Start date
2009-04-30
Completion date
2012-04-30
Last updated
2012-08-08

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Cancer

Keywords

Cancer, Phase 1, EC0489, EC20, Refractory, Metastatic, Experimental

Brief summary

This is a Phase 1 clinical trial evaluating the safety and tolerability of escalating doses of EC0489 in patients with refractory or metastatic tumors who have exhausted standard therapeutic options.

Detailed description

This is a Phase 1, dose escalation study of EC0489 administered by intravenous bolus (IV) during weeks 1 and 3 of a 4-week cycle in PART A and weekly on a 4-week cycle in PART B. Both Parts are open to patients with refractory or metastatic cancer who have exhausted standard therapeutic options. EC0489 is a drug that is specifically designed to enter cells via a folate vitamin receptor. Experimental evidence shows that the target receptor is over-expressed in many human cancers. There are no previous human studies of EC0489; however, lab research (research in test tubes or animals) using EC0489 has shown activity against tumors in animals. This activity in animal models suggests that EC0489 may be useful as chemotherapy against human cancers. The primary objective of this study is to determine the safety and maximum tolerated dose of EC0489 given by intravenous bolus. The efficacy of treatment will also be measured.

Interventions

DRUGEC0489, Injection

PART A: Dose escalation from a starting dose of 1.0 mg/m2 IV bolus on Monday, Wednesday, and Friday Weeks 1 and 3 of a 4-week cycle to the Maximum Tolerated Dose (MTD)

DRUGEC20

20-25 mCi 99mTc-EC20 administered IV bolus 1-2 hours prior to imaging and at end of study for subjects who received 1 cycle or more of EC0489.

Sponsors

Endocyte
Lead SponsorINDUSTRY

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* 18 years of age or older * Histological or cytological diagnosis of neoplasm * No effective standard therapeutic options * ECOG performance status of 0-2 * ≥ 4 weeks post therapeutic radiation or recovered (or returned to baseline) from any acute toxicity associated with prior cytotoxic therapy. Patients previously treated with non-cytotoxic therapy (e.g., EGFR, VGEF, etc.) and who have recovered from or have controlled drug-associated toxicity are allowed to enter the trial after a period consisting of 4 half-lives of the agent. * Negative serum pregnancy test for women of child-bearing potential within one week prior to treatment with investigational agents (99mTc-EC20 and EC0489)and willingness to practice contraceptive methods * Adequate bone marrow reserve, renal and hepatic function

Exclusion criteria

* Concurrent malignancies * Women who are pregnant or breast-feeding * Evidence of symptomatic brain metastases * Receiving concomitant anticancer therapy (excluding supportive care) * Requires palliative radiotherapy at time of study entry * Requires antifolate therapy for comorbid conditions * Heart failure characterized as greater than NYHA Class I * History of myocardial infarct * Any of the following baseline echocardiogram findings: valvular lesions (stenosis or insufficiency) characterized as greater than moderate, systolic ventricular impairment characterized as greater than mild, left ventricular ejection fraction \< 55%, any feature of the echocardiogram that would confound interpretation of the serial echocardiograms required by the protocol

Design outcomes

Primary

MeasureTime frame
Maximum tolerated dose (MTD)Dose escalation to the highest dose that can be safely administered to produce acceptable, manageable and reversible toxicity in no more than 0 or 1 of 6 patients

Secondary

MeasureTime frame
Pharmacokinetic and pharmacodynamic parametersObtained during the first cycle of therapy on Days 1 and 3
Anti-tumor activityInitial dose of study therapy to disease progression
Uptake of 99mTc-EC20 in tumors and normal tissues1-2 hours post administration of 99mTc-EC20
Safety and TolerabilityInitiation of study therapy through 30 day post last dose of study therapy

Countries

United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026