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Olaparib Maintenance Monotherapy in Patients With BRCA Mutated Ovarian Cancer Following First Line Platinum Based Chemotherapy. (SOLO-1)

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details.
 
ClinicalTrials.gov Identifier: NCT01844986
Recruitment Status : Active, not recruiting
First Posted : May 3, 2013
Results First Posted : July 9, 2019
Last Update Posted : February 29, 2024
Sponsor:
Collaborators:
GOG Foundation
Myriad Genetic Laboratories, Inc.
Merck Sharp & Dohme LLC
Information provided by (Responsible Party):
AstraZeneca

Study Description
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Brief Summary:
Olaparib Monotherapy in Patients with BRCA Mutated Ovarian Cancer following First Line Platinum Based Chemotherapy.

Condition or disease Intervention/treatment Phase
Newly Diagnosed Advanced Ovarian Cancer FIGO Stage III-IV BRCA Mutation Complete Response Partial Response First Line Platinum Chemotherapy Drug: Olaparib 300mg tablets Phase 3

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Detailed Description:
A Phase III, Randomised, Double Blind, Placebo Controlled, Multicentre Study of Olaparib Maintenance Monotherapy in Patients with BRCA Mutated Advanced (FIGO Stage III-IV) Ovarian Cancer following First Line Platinum Based Chemotherapy
Study Design
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Study Type : Interventional  (Clinical Trial)
Actual Enrollment : 450 participants
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Quadruple (Participant, Care Provider, Investigator, Outcomes Assessor)
Primary Purpose: Treatment
Official Title: A Phase III, Randomised, Double Blind, Placebo Controlled, Multicentre Study of Olaparib Maintenance Monotherapy in Patients With BRCA Mutated Advanced (FIGO Stage III-IV) Ovarian Cancer Following First Line Platinum Based Chemotherapy.
Actual Study Start Date : August 26, 2013
Actual Primary Completion Date : May 17, 2018
Estimated Study Completion Date : August 29, 2028

Resource links provided by the National Library of Medicine

MedlinePlus related topics: Ovarian Cancer
Drug Information available for: Olaparib

Arms and Interventions
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Arm Intervention/treatment
Experimental: Olaparib tablets p.o. 300mg twice daily
Olaparib/placebo tablets p.o 300mg twice daily for up to 3 years or until objective radiological disease progression as per RECIST as assessed by the Investigator. Patients with evidence of stable disease (or those who have progressed), may continue on treatment beyond 2 years, if in the patient's best interest. Dose reduction to 250mg and subsequently 200mg is permitted following confirmation of toxicity
 Drug: Olaparib 300mg tablets
Olaparib/placebo tablets p.o 300mg twice daily for up to 2 years or until objective radiological disease progression as per RECIST as assessed by the Investigator. Patients with evidence of stable disease (or those who have progressed), may continue on treatment beyond 2 years, if in the patient's best interest. Dose reduction to 250mg and subsequently 200mg is permitted following confirmation of toxicity.
Placebo Comparator: Placebo tablets p.o. twice daily
Olaparib/placebo tablets p.o 300mg twice daily for up to 3 years or until objective radiological disease progression as per RECIST as assessed by the Investigator. Patients with evidence of stable disease (or those who have progressed), may continue on treatment beyond 2 years, if in the patient's best interest. Dose reduction to 250mg and subsequently 200mg is permitted following confirmation of toxicity
 Drug: Olaparib 300mg tablets
Olaparib/placebo tablets p.o 300mg twice daily for up to 2 years or until objective radiological disease progression as per RECIST as assessed by the Investigator. Patients with evidence of stable disease (or those who have progressed), may continue on treatment beyond 2 years, if in the patient's best interest. Dose reduction to 250mg and subsequently 200mg is permitted following confirmation of toxicity.


Outcome Measures
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Primary Outcome Measures :
  1. Progression Free Survival (PFS) Using Investigator Assessment According to Modified Response Evaluation Criteria in Solid Tumours (RECIST 1.1) [ Time Frame: Radiologic scans performed at baseline then every 12 weeks up to 156 weeks, then every 24 weeks thereafter until objective radiological disease progression. DCO: 17 May 2018 ]
    To determine the efficacy by progression free survival (PFS) using investigator assessment according to modified Response Evaluation Criteria in Solid Tumours (RECIST 1.1) of olaparib maintenance monotherapy compared to placebo in BRCA mutated high risk advanced ovarian cancer patients who are in clinical complete response or partial response following first line platinum based chemotherapy.


Secondary Outcome Measures :
  1. Efficacy in Patients Following First Line Platinum Based Chemotherapy by Assessment of Overall Survival [ Time Frame: Assessed every 4 weeks until treatment discontinues (up to a max of 156 weeks), then as per protocol. Analysis performed with DCO: 17May2018. Further analyses will be performed at 7 years (descriptive), after 206 events and after 60% maturity. ]
    To determine the efficacy of olaparib maintenance monotherapy compared to placebo in BRCA mutated high risk advanced ovarian cancer patients who are in clinical complete response or partial response following first line platinum based chemotherapy by assessment of overall survival (OS). Reports results of a pre-specified interim analysis; results for final OS analysis (235 OS events) anticipated 2029.

  2. Efficacy in Patients Following First Line Platinum Based Chemotherapy by Assessment of Time to Earliest Progression by RECIST or Cancer Antigen (CA-125) or Death [ Time Frame: CA-125 performed at baseline + every 4 weeks. Radiologic scans performed at baseline + every 12 weeks up to 156 weeks, then every 24 weeks until objective radiological disease progression. DCO:17May2018 ]
    To determine the efficacy of olaparib maintenance monotherapy compared to placebo in BRCA mutated high risk advanced ovarian cancer patients who are in clinical complete response or partial response following first line platinum based chemotherapy by assessment of time to earliest progression by RECIST or Cancer Antigen-125 (CA-125) or death

  3. Efficacy in Patients Following First Line Platinum Based Chemotherapy by Assessment of Time From Randomization to Second Progression [ Time Frame: Following first progression disease then assessed per local practice every 12 weeks until second progression. ]
    To determine the efficacy of olaparib maintenance monotherapy compared to placebo in BRCA mutated high risk advanced ovarian cancer patients who are in clinical complete response or partial response following first line platinum based chemotherapy by assessment of time from randomisation to second progression (PFS2)

  4. Change From Baseline in Health-Related Quality of Life (HRQoL) as Assessed by the the Trial Outcome Index (TOI) of the Functional Assessment of Cancer Therapy - Ovarian (FACT-O) [ Time Frame: Questionnaires will be given to the patient at baseline, at Day 29 and then every 12 weeks for 156 weeks, then every 24 weeks or until the data cut off for the PFS analysis, change in TOI over 24 months reported ]
    To compare the effects of olaparib maintenance monotherapy compared to placebo on Health-related Quality of Life (HRQoL) as assessed by the trial outcome index (TOI) of the Functional Assessment of Cancer Therapy - Ovarian (FACT-O) in BRCA mutated high risk advanced ovarian cancer patients who are in clinical complete response or partial response following first line platinum based chemotherapy. The TOI ranges from 0-100 and a higher score indicates a higher HRQoL.

  5. Efficacy in Patients Following First Line Platinum Based Chemotherapy by Assessment of Time to First Subsequent Therapy or Death (TFST) [ Time Frame: Assessed every 12 weeks following treatment discontinuation. Analysis performed with DCO: 17May2018. Further analyses will be performed at 7 years (descriptive), after 206 events and after 60% maturity. ]
    To determine the efficacy of olaparib maintenance monotherapy compared to placebo in BRCA mutated high risk advanced ovarian cancer patients who are in clinical complete response or partial response following first line platinum based chemotherapy by assessment of time from randomisation to first subsequent therapy or death (TFST). Reports results of a pre-specified interim analysis; final analysis results will later be added at time of final OS analysis (anticipated 2029).

  6. Efficacy in Patients Following First Line Platinum Based Chemotherapy by Assessment of Time to Second Subsequent Therapy or Death (TSST) [ Time Frame: Assessed every 12 weeks following treatment discontinuation. Analysis performed with DCO: 17May2018. Further analyses will be performed at 7 years (descriptive), after 206 events and after 60% maturity. ]
    To determine the efficacy of olaparib maintenance monotherapy compared to placebo in BRCA mutated high risk advanced ovarian cancer patients who are in clinical complete response or partial response following first line platinum based chemotherapy by assessment of time from randomisation to second subsequent therapy or death (TSST). Reports results of a pre-specified interim analysis; final analysis results will later be added at time of final OS analysis (anticipated 2029).

  7. Efficacy in Patients Following First Line Platinum Based Chemotherapy by Assessment of Time From Randomization to Study Treatment Discontinuation or Death (TDT) [ Time Frame: Time elapsed from randomization to study treatment discontinuation or death. Analysis performed with DCO: 17May2018. Further analyses will be performed at 7 years (descriptive), after 206 events and after 60% maturity. ]
    To determine the efficacy of olaparib maintenance monotherapy compared to placebo in BRCA mutated high risk advanced ovarian cancer patients who are in clinical complete response or partial response following first line platinum based chemotherapy by assessment of time from randomisation to study treatment discontinuation or death (TDT). Reports results of a pre-specified interim analysis; final analysis results will later be added at time of final OS analysis (anticipated 2029).

  8. Efficacy in Patients With a Deleterious or Suspected Deleterious Variant in Either of the BRCA Genes by Assessment of PFS [ Time Frame: Radiologic scans performed at baseline then every 12 weeks for the first 156 weeks, then every 24 weeks thereafter, assessed until disease progression. Analysis of data assessed up to a maximum of 54 months. ]
    To assess efficacy of olaparib in patients identified as having a deleterious or suspected deleterious variant in either of the BRCA genes using variants identified with current and potential future BRCA mutation assays (gene sequencing and large rearrangement analysis)


Eligibility Criteria
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Ages Eligible for Study:   18 Years to 130 Years   (Adult, Older Adult)
Sexes Eligible for Study:   Female
Accepts Healthy Volunteers:   No
Criteria

Inclusion Criteria:

  • Female patients with newly diagnosed, histologically confirmed, high risk advanced (FIGO stage III - IV) BRCA mutated high grade serous or high grade endometrioid ovarian cancer, primary peritoneal cancer and / or fallopian - tube cancer who have completed first line platinum based chemotherapy (intravenous or intraperitoneal).
  • Stage III patients must have had one attempt at optimal debulking surgery (upfront or interval debulking). Stage IV patients must have had either a biopsy and/or upfront or interval debulking surgery.
  • Documented mutation in BRCA1 or BRCA2 that is predicted to be deleterious or suspected deleterious (known or predicted to be detrimental/lead to loss of function).
  • Patients who have completed first line platinum (e.g. carboplatin or cisplatin), containing therapy (intravenous or intraperitoneal) prior to randomisation:
  • Patients must have, in the opinion of the investigator, clinical complete response or partial response and have no clinical evidence of disease progression on the post treatment scan or rising CA-125 level, following completion of this chemotherapy course. Patients with stable disease on the post-treatment scan at completion of first line platinum-containing therapy are not eligible for the study.
  • Patients must be randomized within 8 weeks of their last dose of chemotherapy

Exclusion Criteria:

  • BRCA1 and/or BRCA2 mutations that are considered to be non detrimental (e.g. "Variants of uncertain clinical significance" or "Variant of unknown significance" or "Variant, favor polymorphism" or "benign polymorphism" etc).
  • Patients with early stage disease (FIGO Stage I, IIA, IIB or IIC)
  • Stable disease or progressive disease on the post-treatment scan or clinical evidence of progression at the end of the patient's first line chemotherapy treatment.
  • Patients where more than one debulking surgery has been performed before randomisation to the study. (Patients who, at the time of diagnosis, are deemed to be unresectable and undergo only a biopsy or oophorectomy but then go on to receive chemotherapy and interval debulking surgery are eligible).
  • Patients who have previously been diagnosed and treated for earlier stage ovarian, fallopian tube or primary peritoneal cancer.
  • Patients who have previously received chemotherapy for any abdominal or pelvic tumour, including treatment for prior diagnosis at an earlier stage for their ovarian, fallopian tube or primary peritoneal cancer. (Patients who have received prior adjuvant chemotherapy for localised breast cancer may be eligible, provided that it was completed more than three years prior to registration, and that the patient remains free of recurrent or metastatic disease).
  • Patients with synchronous primary endometrial cancer unless both of the following criteria are met: 1) stage <2 2) less than 60 years old at the time of diagnosis of endometrial cancer with stage IA or IB grade 1 or 2, or stage IA grade 3 endometrioid adenocarcinoma OR ≥ 60 years old at the time of diagnosis of endometrial cancer with Stage IA grade 1 or 2 endometrioid adenocarcinoma. Patients with serous or clear cell adenocarcinoma or carcinosarcoma of the endometrium are not eligible.
Contacts and Locations
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Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT01844986


Locations
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Sponsors and Collaborators
AstraZeneca
GOG Foundation
Myriad Genetic Laboratories, Inc.
Merck Sharp & Dohme LLC
Investigators
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Principal Investigator: Prof Paul DiSilvestro, MD Women & Infants Hospital, Providence, Rhode Island, USA
Principal Investigator: Prof Kathleen Moore, MD University of Oklahoma Health Sciences Center, Oklahoma City, USA
  Study Documents (Full-Text)

Documents provided by AstraZeneca:
Study Protocol  [PDF] November 5, 2021
Statistical Analysis Plan  [PDF] February 15, 2022

More Information
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Additional Information:

Publications automatically indexed to this study by ClinicalTrials.gov Identifier (NCT Number):

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Responsible Party: AstraZeneca
ClinicalTrials.gov Identifier: NCT01844986    
Other Study ID Numbers: D0818C00001
2013-001551-13 ( EudraCT Number )
First Posted: May 3, 2013    Key Record Dates
Results First Posted: July 9, 2019
Last Update Posted: February 29, 2024
Last Verified: February 2024
Individual Participant Data (IPD) Sharing Statement:
Plan to Share IPD: Yes
Plan Description: Qualified researchers can request access to anonymized individual patient-level data from AstraZeneca group of companies sponsored clinical trials via the request portal. All request will be evaluated as per the AZ disclosure commitment: https://astrazenecagrouptrials.pharmacm.com/ST/Submission/Disclosure.
Supporting Materials: Study Protocol
Statistical Analysis Plan (SAP)
Time Frame: AstraZeneca will meet or exceed data availability as per the commitments made to the EFPIA Pharma Data Sharing Principles. For details of our timelines, please rerefer to our disclosure commitment at https://astrazenecagrouptrials.pharmacm.com/ST/Submission/Disclosure.
Access Criteria: When a request has been approved AstraZeneca will provide access to the de-identified individual patient-level data in an approved sponsored tool . Signed Data Sharing Agreement (non-negotiable contract for data accessors) must be in place before accessing requested information. Additionally, all users will need to accept the terms and conditions of the SAS MSE to gain access. For additional details, please review the Disclosure Statements at https://astrazenecagrouptrials.pharmacm.com/ST/Submission/Disclosure.
URL: https://astrazenecagroup-dt.pharmacm.com/DT/Home
Keywords provided by AstraZeneca:
BRCA
Ovarian Cancer
Chemotherapy
PARP inhibitor
 First Line
FIGO Stage III
FIGO Stage IV
Additional relevant MeSH terms:
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Ovarian Neoplasms
Carcinoma, Ovarian Epithelial
Endocrine Gland Neoplasms
Neoplasms by Site
Neoplasms
Ovarian Diseases
Adnexal Diseases
Genital Diseases, Female
Female Urogenital Diseases
Female Urogenital Diseases and Pregnancy Complications
Urogenital Diseases
Genital Neoplasms, Female
 Urogenital Neoplasms
Genital Diseases
Endocrine System Diseases
Gonadal Disorders
Carcinoma
Neoplasms, Glandular and Epithelial
Neoplasms by Histologic Type
Olaparib
Poly(ADP-ribose) Polymerase Inhibitors
Enzyme Inhibitors
Molecular Mechanisms of Pharmacological Action
Antineoplastic Agents