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The Adherence of Immunosuppressive Therapy Including Tacrolimus Once-daily in Italian Kidney Transplant Recipients

The Adherence of Immunosuppressive Therapy Including Tacrolimus Once Daily in a Cohort of Kidney Transplant Recipients: an Italian Prospective Observational Study

Status
Completed
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT03558373
Enrollment
158
Registered
2018-06-15
Start date
2018-07-31
Completion date
2020-02-26
Last updated
2022-05-05

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Kidney Transplant

Keywords

adherence, tacrolimus, once-daily

Brief summary

Non-adherence is widespread in the transplant community. Addressing issues associated with non-adherence remains a key challenge in transplantation, in part due to the difficulty in assessing its prevalence, as there is currently no 'gold standard' for use in routine clinical practice. The purpose of this study is to evaluate the non-adherence to immunosuppressive therapy, including tacrolimus once-daily, among Italian kidney transplant recipients receiving. Along with non-adherence evaluation, possible factors related to NA will be investigated (patient-related, condition/disease-related, therapy/treatment-related, etc.).

Interventions

Immunosuppressive therapies

Sponsors

Chiesi Farmaceutici S.p.A.
Lead SponsorINDUSTRY

Study design

Observational model
COHORT
Time perspective
PROSPECTIVE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

1. Adult (≥ 18 years) recipients of a deceased- or living-donor kidney transplant since maximum 12 months. 2. Recipients with a functioning graft 3. Patients receiving tacrolimus once-daily as part of their IS therapy since minimum 2 months. 4. Patients who have signed informed consent form and privacy form. 5. Patients capable of discernment and able to read and write in Italian language.

Exclusion criteria

1. Patients received or planned to receive, a non-renal solid organ transplant, a simultaneous pancreas-kidney transplant, or a bone narrow transplant. 2. Patients who already received a kidney transplant (re-transplant). 3. Patients enrolled or planned to be enrolled in any clinical study. 4. Patients suffering from conditions and illnesses that might interfere with the study purpose, according to the investigator's evaluation.

Design outcomes

Primary

MeasureTime frameDescription
Non aderence6 monthsProportion of non-adherent patients to immunosuppressive therapy as measured by the Basel Assessment of Adherence with Immunosuppressives Scale (BAASIS©-interview). The BAASIS© consists of four items (with a 6-point scale for responses ranging from never (0) to every day (5)) measuring patients' taking, skipping (or drug holidays), timing (\>2 hrs from prescribed time) and dose reduction of drugs. An affirmative answer to any of the first 4 questions results in assignment to the non-adherent group.

Secondary

MeasureTime frameDescription
ACCEPT scoreBaseline and 6 monthsDescribe the patient's acceptance toward immunosuppressive treatment, as measured by the ACCEPT questionnaire. It is a 32-items self-administered questionnaire and covers patient's opinion on: convenience of the medication, length of treatment, constraints due to medication, side effects and a general opinion on the medication. The score ranges from 0 (no acceptance) to 100 (maximum treatment acceptance).
BAASIS evaluationBaselinePerform the BAASIS assessement.The BAASIS consists of four items (with a 6-point scale for responses ranging from never (0) to every day (5)) measuring patients' taking, skipping (or drug holidays), timing (\>2 hrs from prescribed time) and dose reduction of drugs. An affirmative answer to any of the first 4 questions results in assignment to the non-adherent group.
Patients characteristicsBaselineDescribe patients characteristics (such as socio-demographics, lifestyle information, relevant comorbidities, concomitant medications, clinical characteristics information like e.g. primary kidney disease diagnosis, waiting time before graft, transplant characteristic e.g. type of donor, etc.
Clinical informations as for clinical practiceBaseline and 6 monthsCollect clinical information (e.g. routine tacrolimus trough levels, eGFR if available)
Immunosuppressive treatmentsBaseline and 6 monthsImmunosuppressive treatments description and changes
BMQ scoreBaseline and 6 monthsDescribe the patient's belief about immunosuppresive medicines, as measured by the Belief about Medicines Questionnaire (BMQ). It is an 18-item measure comprising of two subscales (general harm and general overuse), and two subscales (specific necessity and specific concerns). Higher scores in the General-Harm and General-Overuse sub-scales represent an overall negative perception of medication. High scores in the Specific-Concerns sub-scale means that adverse reactions are potentially harmful and high scores in the Specific-Necessity sub-scale are indicative of the patient's need to adhere to medication to maintain health.
Graft failureBaseline and 6 monthsOccurrence of graf failure
Adverse eventsBaseline and 6 monthsNumber of adverse events
InfectionsBaseline and 6 monthsOccurrence of infections
Healthcare cost6 monthsAssess the healthcare cost (ER admission, hospitalizations)
RejectionsBaseline and 6 monthsOccurrence of rejection episodes

Countries

Italy

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026