ClinicalTrials.gg
CompletedNCT03464201GREKO IIIUpdated Feb 22, 2023

Enzalutamide in Metastatic or Advanced Non-resectable Granulosa Cell Ovarian Tumors: GREKO III Study

A Phase 2 interventional study of Enzalutamide 40 MG in Ovarian Cancer, sponsored by Grupo Español de Tumores Huérfanos e Infrecuentes. Completed at 8 sites in Spain. Open to female participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2023-02-22.

Sponsored by Grupo Español de Tumores Huérfanos e Infrecuentes · Phase 2, Interventional, and Treatment

Phase
Phase 2
Study type
Interventional
Enrollment
16
Allocation
Not applicable
Ages
18 Years and older
Sex
Female
01

Study summary

The good tolerability profile of enzalutamide, the fact that the administration of steroids is not necessary and the impressive results achieved in prostate cancer, make this drug an ideal candidate to be tested in ovarian granulosa cancer, a tumor that could somehow be considered as "female prostate cancer".

02

Conditions studied

  • Ovarian Cancer

Browse trials for

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 16 is below the median of 54 across 2,548 interventional studies indexed under Ovarian Neoplasms.

Browse Ovarian Neoplasms studies →

Lead sponsor

Grupo Español de Tumores Huérfanos e Infrecuentes is the lead sponsor of 3 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
Female
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Patients who have given written
  • Women aged 18 years or over
  • (ECOG) ≤ 1
  • Diagnosis of confirmed ovarian granulose carcinoma
  • Availability of sufficient material for confirmation of the diagnosis by a centralized pathologist and determination of the mutation FOXL2402C→ G(C134W). If this material is not available, principal investigator of the study will confirm eligibility of the patient.
  • or unresectable disease
  • Radiologically . In case you there is not measurable disease, principal investigator of the study will confirm eligibility of the patient. - - ≥ 12 weeks
  • Patients with adequate hepatic function, defined by: (AST) and alanine aminotransferase (ALT) serum values ≤ 3 x (except in the presence of metastasis in which case values ≤ 5 x upper limit of normal will be allowed), Total values ≤ 1,5 x upper limit of normal
  • Patients with adequate bone marrow function, defined by: ≥ 1.5 x 109 / L, ≥100 x 109/L, ≥ 9 g/dL
  • Patients with adequate renal function: serum creatinine ≤ 1,5 x upper limit of normal
  • Absence of any disability to follow the study protocol
  • Women who are sexually active, not undergoing hysterectomy or double adnexectomy, should follow the following indications: Negative Pregnancy Test in serum or urine in the 72 hours before the start of treatment, use of a medically accepted method of contraception during: 2 months prior to the start of study treatment, during the study and up to 3 months after the last dose of treatment.

Exclusion criteria

Exclusion Criteria:

  • Patients with another primary tumor 2 years before beginning the drug under study, with the exception of adequately treated or totally surgically removed cervical carcinoma in-situ or basalioma or superficial bladder carcinoma
  • Patients who have received radical radiotherapy ≤ 4 weeks prior to the start of study treatment or who have not recovered from toxicities of radiotherapy. Palliative radiation therapy for painful bone lesions bone is allowed up to 14 days prior to the beginning of the study treatment
  • History of seizures or any conditions that may predispose to suffer them
  • Current or previously treated or disease .
  • Patients with cardiac insufficiency or heart disease including any of the following: History or presence of uncontrolled severe ventricular arrhythmias, clinically significant resting bradycardia, any of the following diseases within 6 months prior to the start of the study drug -Myocardial infarction (MI), severe or unstable angina, coronary revascularization, congestive cardiac insufficiency (CCI), cerebrovascular accident (CVA), transient ischemic accident ()-
  • Patients with altered gastrointestinal function or with gastric disease that significantly alters the absorption of enzalutamide, such as for example: severe ulcer diseases, uncontrolled nausea, vomiting, diarrhea, malabsorption syndrome, extensive resection (> 1m) of the small bowel or inability to swallow oral medication. The previous partial or total gastrectomy is not an exclusion criterion.
  • Diagnosis of (HIV) infection.
  • Pregnant or lactating women.
  • Women of not using an effective method. - Patients who do not want or can follow the study protocol.
Terms in these criteria, in plain language(20)

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.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

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.

Histologically or cytologically confirmed

The diagnosis was confirmed by looking at a sample under a microscope: tissue from a biopsy or surgery (histology), or cells from a fluid or needle sample (cytology).

Your pathology report is the document that shows this.

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.

Metastases

Cancer that has spread from where it began to other parts of the body. “Metastatic” cancer is cancer that has spread this way.

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.

Life expectancy

The study doctor’s estimate of how long someone is likely to live. Criteria use it so that people can stay in the study long enough for it to answer its question.

ALT and AST (liver enzymes)

Two enzymes measured in a routine blood test of the liver. Higher levels can mean the liver is under strain or damaged. SGPT and SGOT are older names for ALT and AST.

Criteria usually give a limit as a multiple of the upper limit of normal (ULN), often higher when cancer has spread to the liver.

ULN (upper limit of normal)

The top of the normal range for a blood test, as set by the laboratory that runs it. Each lab prints its own range next to your result.

“≤ 2.5 × ULN” means the result can be up to two and a half times that top value.

Bilirubin

A yellow substance made when red blood cells are broken down, which the liver clears. A high level can mean a problem with the liver or the bile ducts.

Criteria often allow more for people with Gilbert’s syndrome, a harmless inherited condition that raises bilirubin.

Absolute neutrophil count (ANC)

The number of neutrophils, white blood cells that help fight infection, in a given amount of blood. Too few raises the risk of infection.

It is a count, not a percentage of the white cells. Limits are written in units that mean the same: ≥ 1.5 × 10⁹/L is ≥ 1,500 per mm³ (µL). Each lab has its own reference range.

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.

Hemoglobin (Hb)

The protein in red blood cells that carries oxygen. A low level is anaemia, which can cause tiredness and breathlessness. Measured in g/dL or g/L (9 g/dL is 90 g/L).

Childbearing potential

Able to become pregnant: from the first period until menopause, unless permanently unable to through surgery (removal of the womb, or of both ovaries or both fallopian tubes).

Criteria for people of childbearing potential usually ask for a negative pregnancy test and for contraception during the study and for a time after it.

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.

Brain metastases

Cancer deposits in the brain from a cancer that started elsewhere in the body (CNS metastases include the spinal cord).

Studies differ: some leave out any brain metastases, some accept ones treated and stable for some weeks. Check what this study allows.

Leptomeningeal disease

Cancer that has spread to the leptomeninges, the thin layers covering the brain and spinal cord, and the fluid between them. It is not the same as brain metastases.

Criteria often treat it separately, and many studies leave it out even where treated brain metastases are allowed.

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.

TIA (transient ischaemic attack)

A “mini-stroke”: temporary stroke-like symptoms caused by reduced blood flow to part of the brain, spinal cord or eye, without signs of a new stroke on a scan.

Stroke symptoms need emergency care at once, even if they go away.

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.

05

Study design

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

Study arms

  • Experimental
    Enzalutamide

    Enzalutamide 160 mg daily p.o. (4 capsules 40mg per day)

    Drug: Enzalutamide 40 MG

Interventions

06

What researchers measure

Primary outcomes

  1. Overall response rate (ORR)

    Number of responses according to RECIST 1.1 criteria

    Time frame: Up to 6 months

Secondary outcomes

  1. Clinical benefit rate

    Stabilization of disease plus the sum of partial and complete responses according to RECIST 1.1 criteria.

    Time frame: Up to 6 months

  2. Progression-free survival (PFS)

    Number of progression of the disease according to RECIST 1.1 criteria or death of the patient for any cause

    Time frame: Up to 6 months

  3. Overall survival (OS)

    Number of deaths for any cause.

    Time frame: Up to 6 months

  4. Incidence of Treatment-Emergent Adverse Events

    Number of Adverse Events per patient

    Time frame: Up to 6 months

07

Study locations

8 sites
  • Hospital de Mar
    Barcelona, Spain
  • Hospital Reina Sofia
    Córdoba, Spain
  • Hospital Madrid Sanchinarro (CIOCC)
    Madrid, Spain
  • Hospital Universitario La Paz
    Madrid, Spain
  • Hospital Son Llatzer
    Palma De Mallorca, Spain
  • Hospital de Navarra
    Pamplona, Spain
  • Complejo Hospitalario Universitario de Santiago
    Santiago De Compostela, Spain
  • Hospital La Fe
    Valencia, Spain
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 reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Ran from Apr 2018 to primary completion in Nov 2020, 30 months.

Of 228 non-industry phase 2 interventional studies under Ovarian Neoplasms, half reached primary completion within 54 months of starting (the median), counting those still running; a quarter within 40 and three quarters within 80. This study's 30 months is below that.

Counting every sponsor, half of 344 studies reached it within 47 months; a quarter within 33 and three quarters within 72.

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

Registered
Feb 19, 2018
First posted
Mar 13, 2018
StartActual
Apr 13, 2018
Primary completionActual
Nov 11, 2020
CompletionActual
Nov 11, 2020
Last update
Feb 22, 2023
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 Feb 22, 2023, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT03464201
Lead sponsor
Grupo Español de Tumores Huérfanos e Infrecuentes
Collaborators
Astellas Pharma Inc, Apices Soluciones S.L.
Responsible party
Sponsor
First posted
Mar 13, 2018
Start date
Apr 13, 2018
Primary completion
Nov 11, 2020
Completion
Nov 11, 2020
Last update
Feb 22, 2023

Study contacts

Garcia-Donas, MD
principal investigator · CIOCC (Hospital Universitario HM Sanchinarro)

Oversight

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

Not currently enrolling

This study is completed, as verified in Feb 2023. You cannot join it, but the record below documents what was studied.

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Discussion

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Studies of the drug tested here: Enzalutamide

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