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  ["project_title"]=>
  string(75) "A Meta-analysis of current treatments' efficacy for Relapsed Ovarian Cancer"
  ["project_narrative_summary"]=>
  string(733) "This study will evaluate the prognosis (independent) variables which might be relevant to predict survival outcomes in women with Relapsed Ovarian Cancer -following a first line chemotherapy treatment-. Exploratory independent variables are: Age, Health Status, Tumor Metastases , Residual Tumor Size after first cytoreductive surgery, intervention name (active treatment after relapse), Race, Time since last disease progression,  and Cancer Antigen-125 level elevation.

Following interventions will be included:

Paclitaxel (+/- Carboplatin)

Gemcitabine (+/- Carboplatin)

Topotecan

Pegylated Liposomal Doxorubicin (+/- Carboplatin, +/- Trabectedin)

Bevacizumab (+/- Gemcitabine/Carboplatin)"
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    array(6) {
      ["p_pers_f_name"]=>
      string(11) "jose miguel"
      ["p_pers_l_name"]=>
      string(9) "fernandez"
      ["p_pers_degree"]=>
      string(18) "PhD, MPH, MBA, MSc"
      ["p_pers_pr_affil"]=>
      string(36) "Universidad Pompeu Fabra, Barcelona."
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    }
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    ["label"]=>
    string(68) "No external grants or funds are being used to support this research."
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      ["post_date_gmt"]=>
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      string(0) ""
      ["post_title"]=>
      string(207) "NCT00653952 - A Phase 3, Randomized, Open-Label, Comparative Study of CAELYX® versus Paclitaxel HCl in Patients with Epithelial Ovarian Carcinoma Following Failure of First-Line, Platinum-Based Chemotherapy"
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      ["post_title"]=>
      string(198) "A Phase 3, Randomized, Open-Label, Comparative Study of DOXIL/CAELYX® versus Topotecan HCl in Patients with Epithelial Ovarian Carcinoma Following Failure of First-Line, Platinum-Based Chemotherapy"
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  ["project_date_type"]=>
  string(18) "full_crs_supp_docs"
  ["property_scientific_abstract"]=>
  string(1653) "Background:

Ovarian cancer is the leading cause of gynecologic cancer mortality, responsible for an estimated 266000 new cases in 2013.  Most patients will initially respond well to treatment, but unfortunately, approximately three quarters of all women treated will develop recurrent disease and will no longer be considered curable. Treatment after recurrence focuses on prolonging life and improving quality of life (Qol), but it heavily depends on the time since first relapse.

Objective:

To compare different treatment strategies (with or without platinum) for the relapsed, advance setting; including the newly added olaparib and bevacizumab, by using meta-analysis techniques (mixed treatment comparisons)

Study Design:

Meta-analysis of RCTs, Phase III trials, for Relapsed Ovarian Cancer Treatment, since 1994 up to now; to compare survival  endpoints using the Cochrane Library Methodology. Comparative, non-interventional.

Participants:

Women with Relapsed Ovarian Cancer, in any condition and age, with at least one previous relapse to chemotherapy.

Main Outcomes and statistical Plan

Hazard Ratios and Odd Ratios of Overall Survival, Progression Free Survival, Time to Next Therapy, Treatment Related Serious Adverse Effects, Next Therapy choice. Also, a multivariate regression analysis using Individual Patient Level data; to stratify PFS and OS by

ECOG

Age

PFI (Platinum Free Interval) lenght

Treatment Choice (discrete variable)

Previous Cytoreductive Surgery (Secondary)

Time to First Subsequent Therapy

Third Line treatment"
  ["project_brief_bg"]=>
  string(752) "The type and intensity of chemotherapy used routinely for women with advanced ovarian cancer has varied because of uncertainty

about the effectiveness of the different regimens. The objective of this review was to compare single therapies versus combinations of drugs:

platinum versus non-platinum based, and newer (maintenance or targeted therapies), by means of multi-variate analysis,  in women with advanced, relapsed ovarian cancer.

To our knowledge, this will be the first study to analyze the true effects on Survival Endpoints in terms of a number of covariates ,  this will allow to predict the future success odds of incoming treatment strategies , and, ultimately, finding out optimal treatment strategies for patients-."
  ["project_specific_aims"]=>
  string(492) "The study will evaluate predictive factors, by means of a multi-variate analysis, of the following dependent clinical endpoints:

Overall Survival

Progression Free Survival

Overall Response Rate

The main hyphotesis is to test whether any treatment (intervention) is found clinically superior to the others (at 95% statistical level significance), or, otherwise, there are other factors greatly impacting survival and/or progression rather than treatment strategies."
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  }
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  ["project_research_methods"]=>
  string(990) "RCTs will be extracted from MEDLINE, Scopus, EMBASE, Cochrane Register of Trials, and Cancer Research registers of trials. We will also search for the proceedings of meetings  and drug companies.

As long as the methodology involves Multi-regresion Analysis, access to Individual Patient Data is absolutely needed, and therefore, requested.

Inclusion Criteria: Women with Relapsed (confirmed diagnosis) Ovarian, Epithelian Cancer, with/out previous cytoreduction (primary and/or secondary) surgery.

Exclusion Criteria: None

Selection criteria

Randomised trials of:

(1) single non-platinum versus non-platinum combination chemotherapy

(2) single non-platinum versus platinum combination chemotherapy

(3) non-platinum regimen versus the same regimen plus cisplatin

(4) single platinum versus platinum combination chemotherapy

(5) maintenance based therapies (triplets) versus traditional schema (the above 1-4 named strata)"
  ["project_main_outcome_measure"]=>
  string(472) "Hazard Ratios (Credible Interval, assigned by Fixed and/or Random effects models weight) of OS, PFS, TFST (Time to First Subsequent Treatment)

Odds Ratio of Overall Response Rate and Treatment Related Serious Adverse Effects (measured along all follow-up times, or at least, within 60 months of observations).

Fixed effects model approach shall be used preferably, but it will depend on the found variability across trials (tested by Cochrane Q-Test and I2)."
  ["project_main_predictor_indep"]=>
  string(354) "Age, Health Status, Platinum Free Intgerval Lenght, previous debulking surgeries (primary)), previous taxane based treatments, ascites presence, cancer-antigen 125 elevation, treatment arm (numeric), overall response rate to latest treatment (categorical), time from diagnosis (days), presence of metastases (y/n) to outside of  ovary and fallopian tube."
  ["project_other_variables_interest"]=>
  string(5) "none."
  ["project_stat_analysis_plan"]=>
  string(944) "With the IPD from selected trials, we will stratify by:

Platinum Free Interval lenght (6 months)

Age (=60 years)

CA-125 elevation (2 * ULN, yes/no)

Previous Taxane (y/n)

Overall Response Rate (Progression vs. Non-progression)

Treatment arm

and other 2-3 variables

Then, we will run a multivariable analysis, taking Overall Survival and Progression Free Survival as dependent variables; whilst seeing, if at 95% level significance, any of the above variables are truly predictor of the outcomes -making a bootstrap approach-. Software to be employed is "R".

Then, we will test against a validation set, made of different trials, in which we might not be able to get the IPD, to check the prediction versus the real values.

Finally, an adjusted H.R. (using a matched adjusted comparisons and/or propensity scores) is to be found between the treatments included in the project."
  ["project_timeline"]=>
  string(58) "Starting Date: ASAP

Publication Date: December 2016"
  ["project_dissemination_plan"]=>
  string(210) "ISPOR abstract: June 2016 (submission of previous findings)

Cochrane Library of Systematic Reviews: December 2016

The NEJM, 2017, full papers submission with key data and supplementary appendixes."
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products
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