ClinicalTrials.gg
TerminatedNCT05001282Updated Aug 7, 2024

A Study to Evaluate ELU001 in Patients With Solid Tumors That Overexpress Folate Receptor Alpha (FRα)

A Phase 1/2 interventional study of ELU001 in Ovarian Cancer, Ovarian Neoplasms and Ovarian Carcinoma, sponsored by Elucida Oncology. Terminated at 18 sites in United States. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2024-08-07.

Sponsored by Elucida Oncology · Phase 1/2, Interventional, and Treatment

Why this study was terminated
Lack of Funding - no safety issue with Drug; Company Permanently Closed

From the registry’s dates

  • Primary completion was Jun 2024, 2 years 5 months ago, and no results have been posted to the registry.
Phase
Phase 1/2
Study type
Interventional
Enrollment
79
Allocation
Not applicable
Ages
18 Years and older
Sex
All
01

Study summary

This study, ELU- FRα-1, was focused on adult subjects who have advanced, recurrent or refractory folate receptor alpha (FRα) overexpressing tumors considered to be topoisomerase 1 inhibitor-sensitive based on scientific literature, and, in the opinion of the Investigator, have no other meaningful life-prolonging therapy options available.

Read the detailed description

The study had two parts: Part 1 Dose Escalation Safety Study to identify the maximum tolerated dose (MTD) and/or the recommended phase 2 dose (RP2D), and Part 2 Tumor Group Expansion Cohort(s) where specific cancer types will be evaluated for efficacy and safety at the RP2D.

Part 1, subjects with cancer types with a high likelihood of having FRα overexpressing tumors based on historical data, specifically, ovarian, endometrial, colorectal, gastric, gastroesophageal junction, triple negative breast, or non-small cell lung cancers, or cholangiocarcinoma, will be enrolled in a basket clinical study. Retrospective analysis of folate receptor alpha (FRα) expression status will be determined. Part 1 is currently closed for further recruitment.

Part 2 Stage 1 of a Simon's Two-Stage design, tumor group expansion cohorts, each consisting of subjects with cancer types studied as part of the basket in Part 1. Part 2 is closed for recruitment.

02

Conditions studied

  • Ovarian Cancer
  • Ovarian Neoplasms
  • Ovarian Carcinoma
  • Endometrial Cancer
  • Ovary Cancer
  • Ovary Neoplasm
  • Ovary Disease
  • Ovary Metastasis
  • Ovarian Diseases
  • Ovarian Cancer Stage
  • Ovarian Epithelial Cancer
  • Ovarian Adenocarcinoma
  • Ovarian Serous Adenocarcinoma
  • Ovarian Neoplasm Epithelial
  • Ovarian Cancer Recurrent
  • Endometrial Diseases
  • Endometrial Adenocarcinoma
  • Endometrial Carcinosarcoma
  • Endometrial Clear Cell Adenocarcinoma
  • Endometrioid Adenocarcinoma
  • Endometrial Neoplasms
  • Endometrial Cancer Recurrent
  • Endometrioid Tumor
  • Fallopian Tube Cancer
  • Peritoneal Cancer

Keywords

  • Folate Receptor Alpha
  • Carcinomas
  • Recurrent, Refractory
  • Folate Receptor alpha moderate expression
  • Folate Receptor alpha high expression
  • ELU001
  • Exatecan
  • C'Dot
  • C-Dot
  • Folic Acid
  • Payload
  • Nanoparticle
  • C'Dot drug conjugate
  • CDC
  • Linker
  • ELU-FRa-1
  • FOLR1
03

In context

Ovarian Neoplasms

3,381 studies on the registry are indexed under Ovarian Neoplasms; 790 are open to participants now.

This study's enrollment of 79 is above the median of 54 across 2,548 interventional studies indexed under Ovarian Neoplasms.

Browse Ovarian Neoplasms studies →

Lead sponsor

Elucida Oncology is the lead sponsor of 2 studies on the registry; none are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Eligibility criteria

Key Inclusion Criteria:

Patients must meet the following criteria to enroll in this study:

  • Part 1 Documented diagnosis of ovarian cancer, endometrial cancer, colorectal cancer, gastric cancer, gastroesophageal junction cancer, triple negative breast cancer, non-small cell lung cancer, or cholangiocarcinoma
  • Part 2 Ovarian Cancer or Endometrial Cancer
  • No other meaningful life-prolonging therapy option available
  • Must provide or a newly obtained tumor biopsy specimen prior to the first dose of ELU001 for folate receptor alpha (FRα) expression analysis. Previous FRα expression test results may be used in certain circumstances
  • Adequate organ function
  • , or in the absence of measurable disease, non-measurable disease as per (RECIST) v1.1
  • Part 1: (ECOG) performance status of 0, 1 or 2; Part 2: ECOG performance status of 0 or 1.
  • Recovered from previous surgeries
  • Agree to highly effective , not to get pregnant, or for men, not father a child during study participation

Key Exclusion Criteria:

Patients who meet any of the following are not eligible to enroll in this study:

  • eye disorders
  • Taken any treatments that use the protein folate receptor alpha or FRα to work
  • Taken any other experimental treatments
  • History of significant cardiac issues or other cancers within 3 years.
  • Significant anemia, significant neutropenia, or significant thrombocytopenia (e.g., not enough in your blood - platelets held stop bleeding in your body)
  • Detectable viral load for (human immunodeficiency virus), or C.
  • If you are pregnant.
  • Part 1: Cannot have active diseases such as rheumatoid arthritis, SLE (systemic lupus erythematosus), ulcerative colitis, Crohn's Disease, MS (multiple sclerosis), ankylosing spondylitis, thyroiditis that require treatments that suppress your immune system.
  • Part 1: if your cancer has spread to your brain.
  • Part 2: You can have cancer that has spread to your brain but there are exceptions. The cancer in your brain cannot be causing any symptoms, it cannot be larger than 3 cm, there can be no evidence on a scan that shows your brain tissue has shifted from its expected position inside the skull (called "herniation") or be bleeding in the skull or brain itself (called "hemorrhage").
Terms in these criteria, in plain language(10)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Biopsy and archival tissue

A biopsy takes a small piece of tissue to examine. “Archival tissue” is a sample already taken, for example at diagnosis, and kept by the hospital.

Whether a stored sample will do depends on when it was taken, how much there is and what the study needs. Ask whether the study accepts your stored sample or needs a new biopsy.

Measurable disease

The amount of disease can be tracked with a defined measurement, so the study can see whether it shrinks or grows. It might be a tumour measured on a scan or, in some blood cancers such as myeloma, a marker measured in blood or urine.

The criteria or the study team say which measurement counts — having no tumour visible on a scan does not by itself rule you out.

RECIST

The standard rules for measuring tumours on CT or MRI scans, to tell whether a cancer is shrinking, stable or growing during treatment.

“Measurable disease per RECIST 1.1” usually means at least one tumour 10 mm or more at its longest on a CT scan, or a lymph node 15 mm or more across its short axis.

ECOG performance status

A scale of how much an illness limits everyday activity. For people being assessed to join a study, scores run from 0 (fully active) to 4; lower is more active.

0
Fully active, no restrictions.
1
Limited in strenuous activity, but walking and able to do light work, such as housework or office work.
2
Walking and able to look after yourself, but unable to work; up and about more than half of waking hours.
3
Able to look after yourself only in part; in bed or a chair more than half of waking hours.
4
Unable to look after yourself at all; in bed or a chair all day.

Studies most often ask for 0–1 or 0–2. Your doctor gives the score; the WHO scale uses the same steps. The full scale also has 5, which records death.

Contraception

Ways of preventing pregnancy. “Highly effective” methods fail less than 1% of the time a year when used correctly — for example an IUD or an implant.

Criteria usually say which methods count and how long to keep using them after the last dose, sometimes for male participants too. Some studies accept a partner’s vasectomy if it was confirmed successful and that person is the participant’s only sexual partner.

Clinically significant

Judged by the study doctor to matter for your health or for the study. It is a doctor’s decision, so ask the study team if you are unsure whether something counts.

Platelets

Blood cells that help blood clot. Too few raises the risk of bleeding and bruising. A usual adult range is about 150–400 × 10⁹/L (150,000–400,000 per µL); each lab has its own reference range.

HIV

The human immunodeficiency virus, which weakens the immune system.

Many studies now accept people whose HIV is controlled on treatment, judged by the viral load and the CD4 count. Check the limits this study sets.

Hepatitis B tests

Hepatitis B is a virus that infects the liver. These are separate tests: HBsAg positive usually means a current infection (a recent vaccination can briefly cause it too); total anti-HBc (HBcAb) positive means an infection now or in the past; HBV DNA measures how much virus is in the blood.

Some studies accept a past infection if HBV DNA is undetectable, sometimes with antiviral medicine during the study. Check what this study allows.

Autoimmune disease

A condition in which the immune system attacks the body’s own tissues, such as rheumatoid arthritis, lupus, psoriasis, type 1 diabetes or inflammatory bowel disease.

Immunotherapy studies often leave out active autoimmune disease, and some name exceptions, such as thyroid disease on replacement hormone. Check the exceptions this study lists.

05

Study design

Phase
Phase 1 / Phase 2
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
79 participants (actual)

Study arms

  • Experimental
    ELU001

    Dose Escalation: Escalating doses of ELU001 Dose Expansion: Recommended Dose for Expansion (or RP2D)

    Drug: ELU001

Interventions

  • DrugELU001

    Folic-acid functionalized C'Dot-Drug-Conjugate (FA-CDC)

    Also known as: FA-CDC

06

What researchers measure

Primary outcomes

  1. Part 1 Dose Escalation: The Maximum Tolerated Dose (MTD) and/or Recommended Phase 2 Dose (RP2D) of ELU001 for IV infusion in patients with over-expressing Folate Receptor Alpha tumors.

    To determine the MTD and/or RP2D of ELU001 in patients with over-expressing Folate Receptor Alpha tumors. When at least 2 out of 6 patients in a given dose-level experience a dose-limiting toxicity (DLT), the dose is considered to have exceeded the MTD. The MTD, therefore, is defined as the previous highest tested dose of ELU001 that did not cause a DLT in the first cycle of treatment. In the event of emerging data during Part 1, the Sponsor may, in consultation with a dose-level safety review group, decide to define a recommended dose for expansion (in for Part 2) (RP2D) instead of the MTD. DLTs are defined as a treatment-emergent adverse event (TEAE) or abnormal laboratory value related to ELU001 treatment that result in a failure to meet the criteria for re-treatment.

    Time frame: 28 days

  2. Part 2 Dose Expansion: To determine overall response rate (ORR) (complete response [CR] + partial response [PR]) of ELU001 for IV infusion in patients with over-expressing Folate Receptor Alpha tumors, per RECIST v1.1.

    Percentage of Participants with confirmed objective response as assessed by the investigator and per Response Evaluation Criteria in Solid Tumors (RECIST) v1.1 CR is defined as the disappearance of all target or non-target lesions. PR is defined as at least 30 percent (%) decrease in the sum of the longest diameters (SoD) of target lesions, taking as reference the baseline SoD.

    Time frame: First dose of study drug until responses of CR or PR, assessed up to 12 months.

Secondary outcomes

  1. Part 1 Dose Escalation: To determine overall response rate (ORR) (complete response [CR] + partial response [PR]) of ELU001 for IV infusion in patients with over-expressing Folate Receptor Alpha tumors, per RECIST v1.1.

    Percentage of Participants with confirmed objective response as assessed by the investigator and per Response Evaluation Criteria in Solid Tumors (RECIST) v1.1 CR is defined as the disappearance of all target or non-target lesions. PR is defined as at least 30 percent (%) decrease in the sum of the longest diameters (SoD) of target lesions, taking as reference the baseline SoD.

    Time frame: First dose of study drug until responses of CR or PR, assessed up to 12 months.

  2. Part 1 and Part 2: To determine Duration of Response (DOR) of ELU001 for IV infusion in patients with over-expressing Folate Receptor Alpha tumors.

    Time Measurement: DOR will begin at the date that a response has been identified (stable disease, partial response, or complete response) until the date of progressive disease (PD). PD is defined of at least a 20% increase in the sum of the longest diameters of the target lesions from data of initial response.

    Time frame: Date of first response (CR or PR) until the date of disease progression or up to 12 months, whichever occurs first.

  3. Part 1 and Part 2: Number of participants with adverse events as assessed by CTCAE v5.0 Safety Evaluations.

    The number of participants Frequency/severity of abnormalities in vital signs measurements, physical examination findings, changes in clinical laboratory parameters, and incidence of adverse events after taking ELU001.

    Time frame: First dose of study drug up to 28 days after the last dose of study drug or up to 12 months, whichever occurs first.

07

Study locations

18 sites
  • Mayo Clinic - Phoenix, AZ
    Phoenix, Arizona 85054, United States
  • Providence Medical Foundation
    Fullerton, California 92835, United States
  • Mayo Clinic - Jacksonville, FL
    Jacksonville, Florida 32224, United States
  • D&H Cancer Research Center
    Margate, Florida 33063, United States
  • Sarah Cannon Research Institute at Florida Cancer Specialists
    Orlando, Florida 32827, United States
  • Hope and Healing Cancer Services
    Hinsdale, Illinois 60521, United States
  • OSF Saint Francis Medical Center
    Peoria, Illinois 61606, United States
  • Mayo Clinic - Rochester, MN
    Rochester, Minnesota 55905, United States
  • Memorial Sloan Kettering Cancer Center
    New York, New York 10065, United States
  • Duke University Medical Center - Duke Cancer Institute
    Durham, North Carolina 27719, United States
  • Cleveland Clinic
    Cleveland, Ohio 44195, United States
  • Thomas Jefferson University, Sidney Kimmel Cancer Center
    Philadelphia, Pennsylvania 19107, United States
  • Women & Infants Hospital of Rhode Island
    Providence, Rhode Island 02905, United States
  • Avera Cancer Institute
    Sioux Falls, South Dakota 57105, United States
  • Sarah Cannon Research Institute at Tennessee Oncology
    Nashville, Tennessee 37203, United States
  • Mary Crowley Cancer Research
    Dallas, Texas 75230, United States
  • New Experimental Therapeutics of San Antonio (NEXT Oncology)
    San Antonio, Texas 78229, United States
  • Fred Hutchinson Cancer Center
    Seattle, Washington 98109, United States
08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reached

Ran from Sep 2021 to primary completion in Jun 2024, 32 months.

How these figures are worked out, and which studies are left out of them.

Registered
Jul 14, 2021
First posted
Aug 11, 2021
StartActual
Sep 13, 2021
Primary completionActual
Jun 7, 2024
CompletionActual
Jun 7, 2024
Last update
Aug 7, 2024
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Aug 7, 2024, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT05001282
Lead sponsor
Elucida Oncology
Responsible party
Sponsor
First posted
Aug 11, 2021
Start date
Sep 13, 2021
Primary completion
Jun 7, 2024
Completion
Jun 7, 2024
Last update
Aug 7, 2024

Oversight

Data monitoring committee
Yes
FDA-regulated drug
Yes
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is terminated, as verified in Aug 2024. You cannot join it, but the record below documents what was studied.

Follow this study

Get an email when the registry record changes — status, dates, results — or when someone posts here.

Sign in to follow

Discussion

Questions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.

Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.

Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.

Start the discussion