Adherence to Oral Therapies in Advanced Breast and Prostate Cancers (AdOTAC)

March 24, 2026 updated by: Institut de Cancérologie de Lorraine

Adherence to Oral Therapies in Advanced Breast and Prostate Cancers: a Pilot Study

AdOTAC is a pilot study, open, prospective, single-center, one-arm. The 200 patients will be included. Patient is included at Day 0. The included patient will have the opportunity to complete the self-questionnaires either at the ICL on Day 0, or at home up to 10 days after the date of inclusion in the study. Blood samples are collected the day of enrolment (Day 0) in order to measure the following biological markers: ferritin, serum iron, TSAT, albumin, and haemoglobin, except if performed as part of routine care in the previous 6 weeks.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Study Type

Interventional

Enrollment (Actual)

200

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Contact Backup

Study Locations

      • Vandœuvre-lès-Nancy, France
        • Institut de Cancérologie de Lorraine

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

  • Adult
  • Older Adult

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  • Adult over 18 years old.
  • Patient with inoperable advanced breast cancer treated with oral endocrine therapy and/or targeted therapy and patient with inoperable advanced prostate cancer treated with oral hormonal therapy and/or targeted therapy.
  • Oral anticancer medications started for at least 3 months.
  • With a performance status ≤ 3.
  • Patient has understood, signed and dated the consent form.
  • Patient covered by the social security system.

Exclusion Criteria:

  • Patient with early breast cancer or localized prostate cancer.
  • Patient with life expectancy < 3 months.
  • Patient in progression
  • Undergoing intravenous or oral cytotoxic chemotherapy (capecitabine, cyclophosphamide, vinorelbine).
  • Patient who has not yet started oral anticancer therapies or who has started for less than 3 months.
  • Patient unable to read or speak French.
  • Patient already included in another therapeutic trial with an experimental molecule.
  • Persons deprived of their liberty or under guardianship (including curatorship).

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Prevention
  • Allocation: N/A
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Adherence oral anticancer therapies questionnaire
Blood samples
Ferritin, Transferrin Saturation (TSAT), Serum iron, Haemoglobin, Albumin
GIRERD questionnaire, AdOT questionnaire, Use of social networks and alternatives and complementary medicines using patient questionnaire, EORTC QLQC30, HADS, MNA, MSPSS

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Assess medication adherence to oral treatments in patients with advanced breast or prostate cancer.
Time Frame: one day

Medication adherence to oral anticancer treatments will be assessed using a score based on the GIRERD adherence assessment (targeting oral anticancer treatments).

The score is a scale ranging from 0 to 6 (good compliance = 6; poor compliance = 4 to 5; non-adherence ≤ 3).

one day

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Identify if the performance status by the ECOG-PS score is associated with reduced adherence to oral anticancer treatments
Time Frame: one day
The performance status by the ECOG-PS score (0 to 4).
one day
Identify if comorbitities is associated with reduced adherence to oral anticancer treatments
Time Frame: one day
Comorbidities using the Charlson score (0 to 37).
one day
Identify if polypharmacy by the use of five or more medications apart from the current oral anti-cancer medications is associated with reduced adherence to oral anticancer treatments
Time Frame: one day
Polypharmacy by the use of five or more medications apart from the current oral anti-cancer medications (0 to >5).
one day
Identify if treatment regimen by a level of complexity is associated with reduced adherence to oral anticancer treatments
Time Frame: one day
The treatment regimen by a level of complexity (4 levels) given by an oncologist.
one day
Identify if biological markers are associated with reduced adherence to oral anticancer treatments
Time Frame: one day
Biological markers (ferritin, TSAT, serum iron, haemoglobin, albumin) by a blood test.
one day
Identify if sarcopenia is associated with reduced adherence to oral anticancer treatments
Time Frame: one day
Sarcopenia by the body mass/fat mass ratio using imaging (SMI: skeletal muscle mass index).
one day
Identify if quality of life using the EORTC-QLQ-C30 questionnaire score is associated with reduced adherence to oral anticancer treatments
Time Frame: one day
Quality of life using the EORTC-QLQ-C30 questionnaire score.
one day
Identify if Social and emotional support by the MSPSS questionnaire is associated with reduced adherence to oral anticancer treatments
Time Frame: one day
Social and emotional support by the MSPSS questionnaire (Multidimensional Scale of Perceived Social Support) (12-35: low perceived support; 36-60: medium perceived support; 61-84: hugh perceived support)
one day
Identify if HADS scale is associated with reduced adherence to oral anticancer treatments
Time Frame: one day

Anxiety and/or depression using the Hospital Anxiety and Depression Scale (HADS).

(If the score in a column is greater than or equal to 11, it means person suffer from anxiety or depression)

one day
Identify if MNA is associated with reduced adherence to oral anticancer treatments
Time Frame: one day
Malnutrition using the MNA (Mini-Nutritional Assessment) questionnaire (24-30 points: normal nutritional status; 17-23.5 points: at risk of malnutrition; less than 17 points: malnourished)
one day
Identify if Use of social networks and alternatives and complementary medicines using patient questionnaire is associated with reduced adherence to oral anticancer treatments
Time Frame: one day
Use of social networks and alternatives and complementary medicines using patient questionnaire developed specifically for the study population.
one day
Assess medication adherence to oral treatments in patients with advanced breast or prostate cancer.
Time Frame: one day
Medication adherence to oral anticancer treatments will also be assessed using the score from the new AdOT questionnaire. The score is a scale ranging from 0 (no adherence) to 100 (perfect adherence).
one day
Study the relationship between the two adherence questionnaires.
Time Frame: one day
Subgroup analysis by cancer type (breast; prostate), use of alternatives and complementary medicines (yes; no) and use of social media and networks (yes; no).
one day
Describe and compare medication adherence to oral treatments
Time Frame: one day
The correlation between the scores on the GIRERD and AdOT will be analysed.
one day
Describe and compare patient characteristics (socio-demographic, clinical and contextual), medication adherence to oral anticancer treatments according to cancer type, use of alternative and complementary medicines and use of social media and networks.
Time Frame: one day
Subgroup analysis by cancer type (breast; prostate), use of alternative and complementary medicines (yes; no) and use of social media and networks (yes; no).
one day

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Investigators

  • Study Chair: Naoual Boujedaini, PhD, Institut de Cancérologie de Lorraine
  • Principal Investigator: Vincent Massard, MD, Institut de Cancérologie de Lorraine

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

June 4, 2024

Primary Completion (Actual)

December 12, 2025

Study Completion (Actual)

December 12, 2025

Study Registration Dates

First Submitted

November 27, 2023

First Submitted That Met QC Criteria

May 24, 2024

First Posted (Actual)

May 30, 2024

Study Record Updates

Last Update Posted (Actual)

March 27, 2026

Last Update Submitted That Met QC Criteria

March 24, 2026

Last Verified

March 1, 2026

More Information

Terms related to this study

Other Study ID Numbers

  • 2024-A00396-41

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

product manufactured in and exported from the U.S.

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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