EFFORT: Efficacy of AZD1775 in Parp Resistance; A Randomized 2-Arm, Non-Comparative Phase 2 Study of AZD1775 Alone or AZD1775 and Olaparib in Women With Ovarian Cancer Who Have Progressed During PARP Inhibition

  • End date
    Dec 30, 2023
  • participants needed
  • sponsor
    M.D. Anderson Cancer Center
Updated on 14 September 2022
serum pregnancy test
measurable disease
direct bilirubin
neutrophil count
liver metastasis
tumor cells
blood transfusion
parp inhibitor
fallopian tube


This phase II trial studies how well adavosertib with or without olaparib work in treating patients with ovarian, primary peritoneal, or fallopian tube cancer that has come back (recurrent). Adavosertib and olaparib may stop the growth of tumor cells by blocking some of the enzymes needed for cell growth.



I. To determine the objective response rate (ORR) as determined by Response Evaluation Criteria in Solid Tumors version 1.1 (RECIST 1.1) of adavosertib (AZD1775) alone or in combination with olaparib in women with recurrent ovarian cancer in whom progression has been documented following poly ADP-ribose polymerase (PARP) inhibitor therapy.


I. To evaluate the overall safety and tolerability of AZD1775 alone or in combination with olaparib in this population.

II. To evaluate the disease control rate (DCR) = overall response rate (ORR) plus stable disease rate for 16 weeks.

III. To evaluate the progression free survival (PFS) and overall survival (OS) of this population following AZD1775 alone or in combination with olaparib.

IV. To evaluate the duration of response by RECIST version (v)1.1.


I. To evaluate the efficacy of each arm by BRCA-mutation status (BRCA-mt) and homologous recombination deoxyribonucleic acid (DNA) repair deficiencies (HRD).

II. To describe endogenous and dynamic markers of DNA damage response in tumor tissue and circulating surrogates, such as circulating tumor cells (CTC), circulating tumor DNA (ctDNA), exosomes (cellular/nuclear), cell cycle kinetics (CDKs), and immunophenotype.

III. To examine genomic alterations associated with response and mechanisms of resistance to olaparib and/or AZD1775.

OUTLINE: Patients are randomized to 1 of 2 arms. If enrollment pauses for 1 arm, patients will be assigned to the enrolling arm. Study has a new arm 3 and enrolling patients.

ARM I: Patients receive adavosertib orally (PO) once daily (QD) on days 1-5 and 8-12. Cycles repeat every 21 days in the absence of disease progression or unacceptable toxicity.

ARM II: Patients receive olaparib PO twice daily (BID) on days 1-21 and adavosertib PO QD on days 1-3 and 8-10. Cycles repeat every 21 days in the absence of disease progression or unacceptable toxicity.

Arm III: Patient receive ceralasertib tablets by PO BID each day on Days 1-14. You will also take olaparib tablets by PO BID each day on Days 1-28.

After completion of study treatment, patients are followed up for 30 days and periodically afterwards.

Condition Recurrent Fallopian Tube Carcinoma, Recurrent Ovarian Carcinoma, Recurrent Primary Peritoneal Carcinoma
Treatment olaparib, Adavosertib, Ceralasertib
Clinical Study IdentifierNCT03579316
SponsorM.D. Anderson Cancer Center
Last Modified on14 September 2022


Yes No Not Sure

Inclusion Criteria

Has read and understands the informed consent form (ICF) and has given written informed consent prior to any study procedures
Histologically confirmed recurrent epithelial ovarian, primary peritoneal, or fallopian tube cancer for which there is no known or established treatment available with curative intent
Have demonstrated progressive disease while taking a licensed PARP inhibitor as a previous therapy or within 6 months of completing PARP inhibitor therapy. Response to prior PARPi is not required. However, there must be documented evidence of progression prior to study entry
Prior PARP therapy could have been administered as either treatment for recurrent disease or as maintenance following prior treatment
At least one measurable lesion according to RECIST v1.1
Adequate archived primary or metastatic tumor tissue collected before the prior PARP therapy
Eastern Cooperative Oncology Group (ECOG) Performance Status (PS) score of 0-1 within 28 days of study entry
Patients must have adequate organ and bone marrow function measured within 14 days of study drug(s) initiation
Absolute neutrophil count (ANC) ≥1500/μL
Hemoglobin (Hgb) ≥10 g/dL with no blood transfusion in the past 28 days
Platelets ≥100,000/μL with no platelet transfusion in the past 28 days
Alanine Transaminase (ALT) and Aspartate Transaminase (AST) ≤2.5 x upper limit of normal (ULN) or ≤5 x ULN if known hepatic metastases
Serum bilirubin within normal limits (WNL) or ≤1.5 x ULN in patients with liver metastases; or total bilirubin ≤3.0 x ULN with direct bilirubin WNL in patients with well documented Gilbert's Syndrome
Patients must have creatinine clearance (CrCl) of ≥51 mL/min estimated or measured using standard methodology at the investigating centre (i.e. CockcroftGault, or 24 hr urine): Estimated CrCl = (140-age [years]) x weight (kg) (x F)a serum creatinine (mg/dL) x 72 a where F=0.85 for females and F=1 for males
Women who are not of child-bearing potential and fertile females of childbearing
Willingness and ability to comply with study and follow-up procedures
potential who agree to use adequate contraceptive measures, who are not
breastfeeding, and who have a negative serum pregnancy test within 3 days
prior to the start of study treatment (see Appendix E).Predicted life
expectancy ≥16 weeks
Must be ≥18 years of age
Inclusion criteria for ceralasertib arm only
Must have platinum-sensitive disease, defined as no clinical or radiographic evidence of disease recurrence for > 6 months (or 180 days) after last receipt of platinum based therapy. Patients must have had response (complete or partial) to their prior line of platinum therapy and cannot have had progression through prior platinum-based therapy
Have demonstrated progressive disease while taking a licensed PARP inhibitor as a previous therapy, used in the maintenance or treatment setting
Are germline or somatic BRCA mutant or HRD positive by a licensed test prior to enrollment
Patient must have demonstrated clinical benefit from prior PARPi treatment. Clinical benefit after >1 line of chemotherapy is defined as a minimum duration of continuous treatment with the PARP inhibitor of 6 months in the treatment or maintenance setting (which may or may not be associated with response by CA-125 or imaging). If the PARP inhibitor is received as maintenance following first-line chemotherapy, the minimum duration of continuous treatment with the PARP inhibitor is 12 months
Patients who discontinue the PARP inhibitor for any reasons other than progression are ineligible
If the prior PARP inhibitor used was olaparib, then patients must have received treatment without significant toxicity or the need for a permanent dose reduction
Documented evidence of progression prior to study entry

Exclusion Criteria

Prior Treatment
Any hormonal therapy directed at the malignant tumor must be discontinued at least one week prior to registration (study enrollment). Continuation of hormone replacement therapy is permitted
Pregnant or breast-feeding
PARP inhibitor: Most oral PARP inhibitors (the immediate prior therapy) have a halflife for which 5 half-lives is ≤21 days. Thus, a minimum of 10 days between termination of the prior treatment and administration of olaparib and/or AZD1775 treatment is required. In the event a PARP inhibitor has a longer half-life where 5 half-lives are ≥ 21 days, treatment of olaparib and/or AZD1775 should not begin for 5 half-lives or at least 21 days, whichever is shorter
Serious active infection at the time of study entry, or another serious underlying medical condition that would impair the ability of the patient to receive study treatment
Presence of other active invasive cancers
Any other prior therapy directed at the malignant tumor, including any systemic immunologic agents, must be discontinued at least three weeks prior to first dose of study drug (6 weeks for nitrosoureas or mitomycin C). Cytotoxic chemotherapy, hormonal or non-hormonal targeted therapy within 21 days of Cycle 1 Day 1 is not permitted (a duration of 30 days or 5 half-lives (whichever is longer) is required for patients treated with non-cytotoxic drugs). The minimum washout period for immunotherapy is 42 days. Palliative radiotherapy must have been completed 21or more days before Cycle 1 Day 1 (with the exception of patients receiving radiation to more than 30% of the bone marrow or with a wide field of radiation within 4 weeks of the first dose of study treatment). The patient can receive a stable dose of bisphosphonates or denosumab for bone metastases, before and during the study as long as these were started at least 5 days prior to the study treatment. Receiving, or having received during the 14 days prior to first dose, corticosteroids (at a dose > 10 mg prednisone/day or equivalent) for any reason
Psychological, familial, sociological, or geographical conditions that do not permit compliance with protocol
Major surgical procedures ≤28 days of beginning study treatment, or minor surgical
procedures ≤7 days. No waiting period required following port-a-cath
Previous allogenic bone marrow transplant or double umbilical cord blood transplantation (dUCBT)
Grade >1 toxicity from prior therapy (except alopecia or anorexia)
Patient has an inability to swallow oral medications and patients with gastrointestinal disorders likely to interfere with absorption of the study medication. Note: Patient may not have a percutaneous endoscopic gastrostomy (PEG) tube or be receiving total parenteral nutrition (TPN). Patient has refractory nausea and vomiting, chronic gastrointestinal diseases or previous significant bowel resection, with clinically significant sequelae that would preclude adequate absorption of the study medication
Patients with symptomatic uncontrolled brain metastases. Patients with a history of treated central nervous system (CNS) metastases are eligible provided they meet all of the following criteria: disease outside the CNS is present, no clinical evidence of progression since completion of CNS-directed therapy, minimum 3 weeks between completion of radiotherapy and Cycle 1 Day 1 and recovery from significant (Grade ≥ 3) acute toxicity with no ongoing requirement for >10 mg of prednisolone per day or an equivalent dose of other corticosteroid. If on corticosteroids, the patient should be receiving a stable dose of corticosteroids, started at least 4 weeks prior to treatment
Patient has had a prescription or non-prescription drugs or other products known to be sensitive to CYP3A4 substrates or CYP3A4 substrates with a narrow therapeutic index, or to be moderate to strong inhibitors/inducers of CYP3A4 which cannot be discontinued 2 weeks prior to Day -3 of dosing and withheld throughout the study until 2 weeks after the last dose of study drug. Coadministration of aprepitant or fosaprepitant during this study is prohibited (see Appendix G)
The use of herbal supplements or 'folk remedies' (and medications and foods that significantly modulate CYP3A activity) should be discouraged. These herbal medications include but are not limited to: St. John's wort, kava, ephedra (mahung), gingko biloba, dehydroepiandrosterone (DHEA), yohimbe, saw palmetto and ginseng. Patients should stop using herbal medications 7 days prior to first dose of study treatment. If deemed necessary, such products may be administered with caution and the reason for use documented in the CRF
Any known hypersensitivity or contraindication to the components of the study drugs AZD1775, ceralasertib or olaparib
Any of the following cardiac diseases currently or within the last 6 months as defined by New York Heart Association (NYHA) ≥ Class 2 (see Appendix F)
Unstable angina pectoris
Congestive heart failure
Acute myocardial infarction
Conduction abnormality not controlled with pacemaker or medication
Significant ventricular or supraventricular arrhythmias (patients with chronic ratecontrolled atrial fibrillation in the absence of other cardiac abnormalities are eligible)
AZD1775 should not be given to patients who have a history of Torsades de pointes
unless all risk factors that contributed to Torsades have been corrected
AZD1775 has not been studied in patients with ventricular arrhythmias or
recent myocardial infarction
Participants with a mean resting corrected QT interval (QTc) ≥ 480msec at study entry, as calculated by the Frederica formula (QTcF) by institutional standards obtained from an electrocardiogram (ECG) or congenital long QT syndrome. (Note: if one ECG demonstrates a QTcF >480 msec, then a mean QTcF of ≤ 480 msec obtained from 3 ECGs 2-5 minutes apart is required at study entry
Any factors that increase the risk of QTc prolongation or risk of arrhythmic events such as congestive heart failure, unstable angina pectoris, acute myocardial infarction, hypokalaemia, congenital long QT syndrome, immediate family history of long QT syndrome or unexplained sudden death under 40 years of age, conduction abnormality not controlled with pacemaker or medication
Examples include, but are not limited to, active bleeding diatheses, renal
transplant, uncontrolled major seizure disorder, severe COPD, superior vena
cava syndrome, extensive bilateral lung disease on High Resolution CT scan
severe Parkinson's disease, active inflammatory bowel disease, psychiatric
condition, or active infection including any patient known to have hepatitis
B, hepatitis C and human immunodeficiency virus (HIV) or requiring systemic
antibiotics, antifungals or antiviral drugs. Screening for chronic conditions
is not required
Patients with myelodysplastic syndrome/acute myeloid leukemia or with features suggestive of MDS/AML
Exclusion criteria for ceralasertib arm only
Concomitant use of known potent cytochrome P (CYP) 3A inhibitors (e.g., itraconazole, telithromycin, clarithromycin, protease inhibitors boosted with ritonavir or cobicistat, indinavir, saquinavir, nelfinavir, boceprevir, telaprevir) or moderate CYP3A inhibitors (e.g., ciprofloxacin, erythromycin, diltiazem, fluconazole, verapamil). The required washout period prior to starting study treatment is 2 weeks
Concomitant use of known strong (e.g., phenobarbital, enzalutamide, phenytoin, rifampicin, rifabutin, rifapentine, carbamazepine, nevirapine and St John's Wort) or moderate CYP3A inducers (e.g., bosentan, efavirenz, modafinil). The required washout period prior to starting study treatment is 5 weeks for enzalutamide or phenobarbital and 3 weeks for other agents
Patient has had prescription or non-prescription drugs or other products known to be CYP3A4 and/or CYP2B6 substrates or CYP3A4 and/or CYP2B6 substrates with a narrow therapeutic index. Exposure of other drugs metabolized by CYP3A4 and/or CYP2B6 may be reduced and additional monitoring may be required
Patients at risk of brain perfusion problems, e.g., medical history of carotid stenosis or pre-syncopal or syncopal episodes, history of TIAs
Uncontrolled hypertension (grade 2 or above) requiring clinical intervention
A diagnosis of ataxia telangiectasia
Any other malignancy which has been active or treated within the past three years, with the exception of cervical intra-epithelial neoplasia and non-melanoma skin cancer, Ductal Carcinoma curatively treated with non-evidence of disease for ≥ 5 years prior to study entry
With the exception of alopecia and CTCAE grade 2 neuropathy, any unresolved toxicities from prior therapy ≥ Common Terminology Criteria for Adverse Events (CTCAE) grade 2
Patients with relative hypotension (<90/60 mm Hg) or clinically relevant orthostatic hypotension, including a fall in blood pressure of > 20 mm Hg
Non-leukocyte depleted whole blood transfusion within 120 days of the date of the genetic sample collection
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