ClinicalTrials.gg
Active, not recruitingNCT03375307Updated Nov 12, 2026

Testing Olaparib in Patients With Advanced or Metastatic (Cancer That Has Spread) Bladder Cancer and Other Genitourinary Tumors With DNA-Repair Genetic Changes

A Phase 2 interventional study of Biopsy Procedure and Biospecimen Collection in Advanced Bladder Carcinoma, Advanced Genitourinary System Carcinoma and Metastatic Bladder Carcinoma, sponsored by National Cancer Institute (NCI). Active, not recruiting at 17 sites in United States. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2026-11-12.

Sponsored by National Cancer Institute (NCI) · Phase 2, Interventional, and Treatment

Help build ClinicalTrials.gg — short surveys, remote interviews or testing, in your language. Take part →

Phase
Phase 2
Study type
Interventional
Enrollment
60
Allocation
Non-randomized
Ages
18 Years and older
Sex
All
01

Where this study stands

Counted across the records on this site · 2026-11-14

Among 67 studies in Urinary Bladder Neoplasms by National Cancer Institute (NCI) — 10 open to participants now, 23 under way, 3 of them phase 3. Urinary Bladder Neoplasms · National Cancer Institute (NCI).

Planned enrollment
19th of 56
60 · median 39
Started
2020
with 3 others
Phase 2
31 of 67
4 open now
Primary completion
2026-12
later than 4 of 20 live
Registered
48th of 67
by date

Among the 67 studies in Urinary Bladder Neoplasms by National Cancer Institute (NCI), this one is the 19th largest by planned enrollment of the 56 interventional ones that give a count, is one of 4 that started in 2020, is one of 31 in phase 2, reaches primary completion later than 4 of the 20 other live ones, and was the 48th registered.

Urinary Bladder Neoplasms

1,800 studies on the registry are indexed under Urinary Bladder Neoplasms; 446 are open to participants now.

Browse Urinary Bladder Neoplasms studies →

Open to participants now

10 of the 67 studies in Urinary Bladder Neoplasms by National Cancer Institute (NCI) are open now, in 3 countries. Recruiting first, the newest first:

5 more — sign in →

By country, each count listing its studies:

All 10 open studies →

Who these studies take

Of the 336 Urinary Bladder Neoplasms studies recruiting now, 256 (76%) set no upper age limit and 22 (7%) stop at 75 or younger; 22 take children under 18; 21 take healthy volunteers.

This study: 18 Years and older · all sexes · no healthy volunteers.

The full table on the hub →

This tab as a report to print or save as PDF → With an account.

Was this useful?
Watch this landscapeDownload CSVNarrow it in search →With an account: a weekly mail of what changed among 67 studies in Urinary Bladder Neoplasms by National Cancer Institute (NCI), or all of them as a file.
02

Study summary

This phase II trial studies how well olaparib works in treating patients with bladder cancer and other genitourinary tumors with deoxyribonucleic acid (DNA)-repair defects that has spread to other places in the body (advanced or metastatic) and usually cannot be cured or controlled with treatment. PARPs are proteins that help repair DNA mutations. PARP inhibitors, such as olaparib, can keep PARP from working, so tumor cells can't repair themselves, and they may stop growing.

Read the detailed description

PRIMARY OBJECTIVE:

I. To evaluate the efficacy of olaparib in two cohorts of patients with metastatic/advanced non prostate genitourinary (GU) cancer pre-selected by DNA-repair defects as measured by overall response rate (ORR).

SECONDARY OBJECTIVES:

I. To describe the effect of therapy on progression free survival (PFS). II. To describe the effect of therapy on overall survival (OS). III. To describe the safety/tolerability and drug-related toxicities of olaparib.

IV. To follow patients without the pre-selected DNA-repair defects for survival. (Cohort 3 only)

CORRELATIVE OBJECTIVES:

I. To determine the proportion of patients with DNA-repair pathway-mutated genes in metastatic non-prostate GU cancer (patient cohort referred for screening).

II. To correlate levels of baseline circulating tumor cells (CTCs) with survival in untreated patients.

III. To explore tumor-mutational profiles in metastatic tumor biopsies, saliva "normal" DNA, changes in tumor or peripheral immune characteristics, or tumor associated somatic mutation load in blood DNA in response to treatment.

IV. To explore changes in plasma cytokines and correlate with clinical response.

V. To correlate levels of circulating endothelial cells with clinical outcome. VI. To correlate levels of circulating tumor cells (CTCs) with clinical outcome.

VII. To correlate peripheral immune and DNA damage response transcriptional signatures with clinical outcomes.

VIII. To determine the effectiveness of using next-generation sequencing (NGS) to identify DNA-repair pathway gene defects in tumor samples and circulating DNA and identify patients with non-prostate GU cancer suitable for PARP inhibition.

IX. To determine the expression of Schlafen 11 (SLFN11) in tumor versus (vs.) stroma cells, and the potential tumor heterogeneity based on SLFN11 expression.

X. To determine if the levels of hyaluron (HA) detected in circulating plasma correlates with outcomes in patients treated with olaparib.

XI. To determine if the levels of HGF and MET detected in circulating plasma correlates with outcomes in patients with olaparib.

OUTLINE: Patients are assigned to 1 of 3 cohorts.

COHORT I and II: Patients that have cancer-associated DNA-repair gene mutations receive olaparib orally (PO) twice daily (BID) on days 1-28 of each cycle. Cycles repeat every 28 days in the absence of disease progression or unacceptable toxicity. Additionally, patients undergo blood sample collection, computed tomography (CT), magnetic resonance imaging (MRI), positron emission tomography (PET)/CT, or bone scan and optional tumor biopsy and bone marrow biopsy on study.

COHORT III: Patients that do not have cancer-associated DNA-repair gene mutations undergo blood sample collection at baseline. Additionally, patients undergo CT, MRI, PET/CT, or bone scan and optional tumor biopsy and bone marrow biopsy on study.

After completion of study treatment, patients are followed up at 4 weeks, every 2 months for 1 year, then every 3 months thereafter.

03

Conditions studied

  • Advanced Bladder Carcinoma
  • Advanced Genitourinary System Carcinoma
  • Metastatic Bladder Carcinoma
  • Metastatic Genitourinary System Carcinoma
  • Stage III Bladder Cancer AJCC v8
  • Stage IV Bladder Cancer AJCC v8
04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
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 must have a confirmed diagnosis non-prostate GU cancer
  • Patients with the presence of cancer-associated genetic mutations in one or more pathogenic or likely pathogenic gene alterations tested in the FoundationOne FoundationOne®CDx (F1CDx) panel will be enrolled in cohorts 1 or 2 as follows:

    • Cohort 1: BRCA1, BRCA2, ATM, BAP1, PALB2, and BRIP1, or tumor mutational burden (TMB) where 10 or greater mutations/megabase
    • ABL1, FANCE, POLD1, ATR, FANCG, POLE, ATRX, FANCL, RAD51, BARD1, IKBKE, SMARCB1, BRD4, MEN1, STK11, CCND1, MLH1, TP53, CHEK1, MSH2, CHEK2, MSH6, DOT1L, MUTYH, FANCA, NPM1, FANCC, PMS2
  • Patients with benign or variants of unknown significance as determined by FoundationOne FoundationOne®CDx (F1CDx) panel and Genetics Review Panel review will be enrolled in Cohort 3 to be followed for survival
  • Foundation One mutation analysis results performed prior to enrollment on this study may be accepted for eligibility review and in the event that a patient cannot undergo a and tumor is not available, Foundation Medicine liquid biopsy may be performed
  • Patients must have , defined as at least one lesion that can be accurately measured in at least one dimension (longest diameter to be recorded for non-nodal lesions and short axis for nodal lesions) as >= 20 mm (>= 2 cm) by chest x-ray or as >= 10 mm (>= 1 cm) with CT scan, MRI, or calipers by clinical exam
  • Evidence of disease progression as defined by (RECIST) (version 1.1) during treatment or after the most recent dose of therapy with at least one platinum-based regimen of chemotherapy and/or an immune- (atezolizumab, pembrolizumab, nivolumab, avelumab or durvalumab) (2-week washout from chemotherapy and 4-weeks washout from monoclonal antibodies is required)
  • Age >= 18 years. Because no dosing or adverse event data are currently available on the use of olaparib in patients \< 18 years of age, children are excluded from this study, but will be eligible for future pediatric trials
  • (ECOG) performance status =\< 1 (or >= 70%)
  • Leukocytes >= 3,000/mcL
  • >= 1,500/mcL
  • >= 100,000/mcL
  • Total =\< 1.5 x (ULN) (for subjects with documented Gilbert's disease total bilirubin =\< 3.0 mg/dL)
  • (AST) (serum glutamic-oxaloacetic transaminase [SGOT])/alanine aminotransferase (ALT) (serum glutamate pyruvate transaminase [SGPT]) =\< 2.5 x institutional upper limit of normal (for subjects with liver AST/ALT =\< 5 x ULN)
  • >= 50 mL/min/1.73 m\^2
  • >= 9 g/dL; transfusions are allowed
  • (PT)/international normalized ratio (INR) and activated partial thromboplastin time (aPTT) within 1.25 x ULN institutional limits, except where a lupus anti-coagulant has been confirmed or the patient is on direct oral anticoagulant (DOA)
  • Patients must be able to tolerate oral medications and not have gastrointestinal illnesses that would preclude absorption of olaparib
  • Pre-clinical data indicate that olaparib adversely affects embryofetal survival and development. Therefore, women of and their partners should agree to use two (2) highly effective forms of throughout study participation and for at least six (6) months after the last dose of olaparib. Male study participants should avoid fathering a child or donating sperm during the study and for three (3) months after the last dose of olaparib.

    • Note: Olaparib is a PARP inhibitor with the potential for teratogenic or abortifacient effects. Because there is a potential risk for adverse events in nursing infants secondary to treatment of the mother with olaparib, breastfeeding should be discontinued if the mother is treated with olaparib
  • Ability to understand and the willingness to sign a written document or patients with impaired decision making capacity (IDMC) if they are represented by a legally authorized representative (LAR)
  • Patients must provide archival tumor sample for mutation analysis or be willing to undergo mandatory screening biopsy. In the event that the patient cannot undergo biopsy and tumor is not available, Foundation Medicine liquid biopsy will be performed
  • or evidence of non-childbearing status for women of childbearing potential: negative urine or serum pregnancy test within 28 days of study treatment at screening. Note: This will also need to be confirmed within 3 days prior to treatment on day 1. Postmenopausal is defined as at least one (1) of the following:

    • Amenorrheic for 1 year or more following cessation of exogenous hormonal treatments
    • Luteinizing hormone (LH) and follicle stimulating hormone (FSH) levels in the post menopausal range for women under 50
    • Radiation-induced oophorectomy with last menses > 1 year ago
    • Chemotherapy-induced menopause with > 1 year interval since last menses
    • Surgical sterilization (bilateral oophorectomy or hysterectomy)
  • Patients is willing and able to comply with the protocol for the duration of the study including undergoing treatment and scheduled visits and examinations

Exclusion criteria

Exclusion Criteria:

  • Patients who have had prior treatment with olaparib or any other PARP inhibitor (PARPi)
  • Patients with myelodysplastic syndrome/acute myeloid leukemia; or baseline features suggestive of myelodysplastic syndrome or acute myelogenous leukemia on peripheral blood smear or bone marrow , if clinically indicated
  • Persistent toxicities (>= [CTCAE] grade 2) with the exception of alopecia or peripheral neuropathy, caused by previous cancer therapy
  • Patients who are receiving any other agents. Patients may be on other clinical trials or treatment during screening to determine eligibility
  • Patients with known should be excluded from this clinical trial because of their poor prognosis and because they often develop progressive neurologic dysfunction that would confound the evaluation of neurologic and other adverse events. A scan to confirm the absence of brain metastases is not required. Patients with spinal cord compression unless considered to have received definitive treatment for this and evidence of clinically stable disease for 28 days
  • History of allergic reactions attributed to compounds of similar chemical or biologic composition of olaparib
  • Patients receiving strong or moderate inhibitors or inducers are ineligible. A prior to the first dose of olaparib for patients on CYP3A inhibitors/inducers is 5 half-lives or 3 weeks , whichever is shorter. Medications with limited systemic absorption (e.g., ophthalmic, otic) do not require a washout and are permitted.

    • Because the lists of these agents are constantly changing, it is important to regularly consult a frequently-updated medical reference texts such as the Physicians' Desk Reference. As part of the enrollment/ procedures, the patient will be counseled on the risk of interactions with other agents, and what to do if new medications need to be prescribed or if the patient is considering a new over-the-counter medicine or herbal product
  • Pregnant women are excluded from this study because olaparib is a PARP inhibitor agent with the potential for teratogenic or abortifacient effects
  • Any chronic or concurrent acute liver disease
  • History of stroke, (TIA), or myocardial infarction, within 6 months prior to enrollment
  • Uncontrolled concurrent disease or illness including but not limited to:

    • Ongoing or active infection
    • Symptomatic congestive heart failure, unstable angina pectoris, cardiac arrhythmia
    • Unstable or untreated cardiac conditions or of \< 50% as determined by echocardiogram (ECHO) or multiple gated acquisition scan (MUGA)
    • Uncontrolled diabetes mellitus
    • Psychiatric illness/social situations that would limit compliance with study requirements
  • Other severe, acute, or chronic medical or psychiatric condition or laboratory abnormality that may increase the risk associated with study participation or study drug administration or that may interfere with the interpretation of study results and, in the judgment of the investigator, would make the patient inappropriate for the study
  • patients, e.g., those with known not on highly active antiretroviral therapy (HAART) with detectable levels of virus
  • Patients with known active hepatitis (i.e., or C)
  • Other within the last two (2) years except: adequately treated non-melanoma skin cancer, curatively treated in situ cancer of the cervix, ductal carcinoma in situ (DCIS), stage 1, grade 1 endometrial carcinoma, or other solid tumors including lymphomas (without bone marrow involvement) curatively treated with no evidence of disease for >= 5 years. Patients with a history of localized triple negative breast cancer or localized resected prostate cancer may be eligible, provided they completed their chemotherapy more than two (2) years prior to registration, and that the patient remains free of recurrent or disease
  • Patients receiving any systemic chemotherapy or radiotherapy (except for palliative reasons) within 2 weeks prior to study treatment
  • Major surgery within 2 weeks of starting study treatment and patients must have recovered from any effects of any major surgery
  • Previous allogenic bone marrow transplant or double umbilical cord blood transplantation (dUCBT)
Terms in these criteria, in plain language(33)

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.

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.

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.

PD-1, PD-L1 and checkpoint inhibitors

PD-1, PD-L1 and CTLA-4 are proteins that act as brakes on the immune system. Checkpoint inhibitors, such as pembrolizumab or nivolumab, block them so the immune system can attack a cancer.

PD-L1 can also be measured in a tumour sample. Some scores count stained tumour cells only (TPS); others also count certain immune cells (CPS). The study names the score and the minimum it uses.

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.

Karnofsky performance status (KPS)

A 0–100 scale of how well someone can carry out everyday activities. 100 is no complaints and no signs of illness; 70 is able to look after yourself but not to work or keep up normal activity; 50 is needing considerable help and frequent medical care.

Studies often ask for 60 or 70 and above. Your doctor gives the score.

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.

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.

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.

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.

Metastases

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

Creatinine clearance (CrCl)

How quickly the kidneys clear creatinine, a waste product, from the blood. A study may estimate it from a blood test with age, weight and sex (often by the Cockcroft–Gault formula), or measure it using blood and urine collected over a set time. Given in mL/min; higher is better.

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).

INR, PT and aPTT (clotting tests)

Blood tests of how long blood takes to clot. The INR is the prothrombin time (PT) put on a common scale; about 1 is usual for someone not taking a blood thinner.

Criteria often make an exception for people on a blood thinner such as warfarin, whose INR is raised on purpose.

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.

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.

Postmenopausal

Periods have stopped for good: usually no period for 12 months in a row without another medical reason, sometimes confirmed by a blood test (FSH).

CTCAE grade

The US National Cancer Institute’s scale of how severe an adverse event is — any unwanted medical event during a study, such as a symptom, an illness or an abnormal test result, whether or not a treatment caused it. Whether it did is judged separately.

1
Mild.
2
Moderate.
3
Severe.
4
Life-threatening.
5
Death due to the event.

“Side effects of earlier treatment resolved to grade 1 or less” means they have settled to mild or gone.

Investigational drug or device

A drug or device being studied in a clinical trial.

It may be new, or already approved and being studied for another use, dose or form. Criteria often leave out people who took part in another study of one within a recent period, commonly 30 days or five half-lives.

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.

CYP3A (CYP3A4) inhibitors and inducers

CYP3A is a group of enzymes, mainly CYP3A4, in the liver and gut that break down many medicines. Some medicines, supplements and foods (grapefruit, St John’s wort) slow them down or speed them up, which changes how much of a study drug stays in the body.

Studies list them so they can be avoided or switched; bring a list of everything you take, including supplements.

Washout period

A planned gap after a treatment, so that its effects can lessen before the study treatment or a study assessment. Ask the study team and the doctor who prescribed it before changing any medicine.

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.

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.

LVEF (left ventricular ejection fraction)

The share of blood the heart’s main pumping chamber (the left ventricle) pushes out with each beat, measured by an echocardiogram (heart ultrasound) or a MUGA scan. About 50–70% is normal.

Immunosuppression

A weakened immune system. It can come from an illness, such as HIV or some blood cancers, or from medicines that turn the immune system down, for example after an organ transplant or for an autoimmune disease; steroids at higher doses count.

Read whether the line is about a condition or about medicines, and which medicines and doses it means.

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.

Cancer (malignancy)

Malignancy means cancer. Criteria about another or earlier malignancy ask whether you have had a different cancer, usually within a set number of years.

Some are commonly allowed, such as treated skin cancers other than melanoma and early cancers removed completely — check the exceptions this study lists.

Adjuvant and neoadjuvant

Neoadjuvant treatment is given before the main treatment (usually surgery), often to shrink a tumour. Adjuvant treatment is given after it, to lower the chance of the cancer coming back.

05

Study design

Phase
Phase 2
Primary purpose
Treatment
Allocation
Non-randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
60 participants (estimated)

Study arms

  • Experimental
    Cohort I (olaparib)

    Patients that have cancer-associated DNA-repair gene mutations receive olaparib PO BID on days 1-28 of each cycle. Cycles repeat every 28 days in the absence of disease progression or unacceptable toxicity. Additionally, patients undergo blood sample collection, CT, MRI, PET/CT, or bone scan and optional tumor biopsy and bone marrow biopsy on study.

    Procedure: Biopsy Procedure · Procedure: Biospecimen Collection · Procedure: Bone Marrow Biopsy · Procedure: Bone Scan · Procedure: Computed Tomography · Procedure: Magnetic Resonance Imaging · Drug: Olaparib · Procedure: Positron Emission Tomography

  • Experimental
    Cohort II (biospecimen collection)

    Patients that do not have cancer-associated DNA-repair gene mutations undergo blood sample collection at baseline. Additionally, patients undergo CT, MRI, PET/CT, or bone scan and optional tumor biopsy and bone marrow biopsy on study.

    Procedure: Biopsy Procedure · Procedure: Biospecimen Collection · Procedure: Bone Marrow Biopsy · Procedure: Bone Scan · Procedure: Computed Tomography · Procedure: Magnetic Resonance Imaging · Procedure: Positron Emission Tomography

Interventions

  • ProcedureBiopsy Procedure

    Undergo tumor biopsy

    Also known as: Biopsy, BIOPSY_TYPE, Bx

  • ProcedureBiospecimen Collection

    Undergo blood collection

    Also known as: Biological Sample Collection, Biospecimen Collected, Sample Collection, Specimen Collection

  • ProcedureBone Marrow Biopsy

    Undergo bone marrow biopsy

    Also known as: Biopsy of Bone Marrow, Biopsy, Bone Marrow

  • ProcedureBone Scan

    Undergo bone scan

    Also known as: Bone Scintigraphy

  • ProcedureComputed Tomography

    Undergo CT or PET/CT

    Also known as: CAT, CAT Scan, Computed Axial Tomography, Computerized Axial Tomography, Computerized axial tomography (procedure), Computerized Tomography, Computerized Tomography (CT) scan, CT, CT Scan, Diagnostic CAT Scan, Diagnostic CAT Scan Service Type, tomography

  • ProcedureMagnetic Resonance Imaging

    Undergo MRI

    Also known as: Magnetic Resonance, Magnetic Resonance Imaging (MRI), Magnetic resonance imaging (procedure), Magnetic Resonance Imaging Scan, Medical Imaging, Magnetic Resonance / Nuclear Magnetic Resonance, MR, MR Imaging, MRI, MRI Scan, MRIs, NMR Imaging, NMRI, Nuclear Magnetic Resonance Imaging, sMRI, Structural MRI

  • Given PO

    Also known as: AZD 2281, AZD-2281, AZD2281, KU 0059436, KU-0059436, KU0059436, Lynparza, Olanib, Olaparix, PARP Inhibitor AZD2281

  • ProcedurePositron Emission Tomography

    Undergo PET/CT

    Also known as: Medical Imaging, Positron Emission Tomography, PET, PET Scan, Positron emission tomography (procedure), Positron Emission Tomography Scan, Positron-Emission Tomography, PT

06

What researchers measure

Primary outcomes

  1. Overall response rate (ORR)

    Will be evaluated by Response Evaluation Criteria in Solid Tumors (RECIST). ORR will be reported along with 95% exact confidence intervals.

    Time frame: Up to 5 years

Secondary outcomes

  1. Overall survival (OS)

    OS will be calculated using the Kaplan-Meier method, starting at the date that the participant was first considered to be included in that set of participants undergoing treatment or observation.

    Time frame: Up to 5 years

  2. Progression free survival (PFS)

    PFS will be determined using a Kaplan-Meier curve, with probabilities at various time points indicated along with appropriate confidence intervals.

    Time frame: From the date of olaparib initiation to investigator-assessed clinical progression or radiographic progression (by RECIST), or death from any cause, whichever occurs first, assessed up to 5 years

  3. Incidence of adverse events

    Will be assessed according to the Common Terminology Criteria for Adverse Events version 5.0.

    Time frame: Up to 5 years

  4. Individual deoxyribonucleic acid (DNA)-repair defects

    The association between individual DNA-repair defects and ORR will be determined using Fisher's exact test.

    Time frame: Up to 5 years

07

Study locations

17 sites
08

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

Started Nov 2020 (actual). Primary completion is estimated for Dec 2026, 73 months after the start.

Of 155 non-industry phase 2 interventional studies under Urinary Bladder Neoplasms, half reached primary completion within 58 months of starting (the median), counting those still running; a quarter within 39 and three quarters within 103. This study's planned 73 months is above that.

Counting every sponsor, half of 194 studies reached it within 52 months; a quarter within 36 and three quarters within 91.

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

Registered
Dec 15, 2017
First posted
Dec 18, 2017
StartActual
Nov 3, 2020
Primary completionEst.
Dec 16, 2026
CompletionEst.
Dec 16, 2026
Last update
Nov 12, 2026
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 Nov 12, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT03375307
Responsible party
Sponsor
First posted
Dec 18, 2017
Start date
Nov 3, 2020
Primary completion
Dec 16, 2026 (estimated)
Completion
Dec 16, 2026 (estimated)
Last update
Nov 12, 2026

Study contacts

Andrea B Apolo
principal investigator · National Cancer Institute LAO

Oversight

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

Not currently enrolling

This study is active, not recruiting, as verified in Jun 2026. 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.

Studies of the drug tested here: Olaparib

Start the discussion