E.1 Medical condition or disease under investigation |
E.1.1 | Medical condition(s) being investigated |
Depression in Parkinson's disease |
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E.1.1.1 | Medical condition in easily understood language |
Depression in Parkinson's disease |
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E.1.1.2 | Therapeutic area | Diseases [C] - Nervous System Diseases [C10] |
MedDRA Classification |
E.1.2 Medical condition or disease under investigation |
E.1.2 | Version | 20.0 |
E.1.2 | Level | PT |
E.1.2 | Classification code | 10012378 |
E.1.2 | Term | Depression |
E.1.2 | System Organ Class | 10037175 - Psychiatric disorders |
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E.1.2 Medical condition or disease under investigation |
E.1.2 | Version | 20.0 |
E.1.2 | Level | PT |
E.1.2 | Classification code | 10061536 |
E.1.2 | Term | Parkinson's disease |
E.1.2 | System Organ Class | 10029205 - Nervous system disorders |
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E.1.3 | Condition being studied is a rare disease | No |
E.2 Objective of the trial |
E.2.1 | Main objective of the trial |
Establish the clinical-effectiveness and cost-effectiveness of escitalopram at 8 weeks compared to placebo in the treatment of depression in PD, in addition to standard psychological care in the NHS.
Establish the clinical-effectiveness and cost-effectiveness of nortriptyline at 8 weeks compared to placebo in the treatment of depression in PD, in addition to standard psychological care in the NHS.
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E.2.2 | Secondary objectives of the trial |
Establish whether there is a difference in adverse reactions between escitalopram and nortriptyline.
Establish the long-term (1 year) clinical effectiveness and cost-effectiveness of escitalopram and nortriptyline compared to placebo in the treatment of depression in PD, in addition to standard psychological care.
Establish the clinical effectiveness of escitalopram and of nortriptyline compared to placebo on anxiety and other secondary outcome measures.
Establish whether after one year of treatment parkinsonism has deteriorated less in patients with PD with depressive disorder on nortriptyline than on placebo.
Establish whether after one year of treatment parkinsonism has deteriorated more in patients with Parkinson’s disease with depression on escitalopram than on placebo.
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E.2.3 | Trial contains a sub-study | Yes |
E.2.3.1 | Full title, date and version of each sub-study and their related objectives |
ADepT-PD genetic sub-study (optional), version 1.0, dated XXX. The genetic sub-study requires a blood sample to be taken for genetic analysis preferably at screening/baseline or at a later trial visit. The aim of the ADepT-PD genetic sub-study is to try to identify genetic markers that may be associated with subtypes of PD (e.g. presence of depression and anxiety) or variation in treatment responsiveness. The primary aim of this resource and of future work will be to enable targeting of the best treatments to specific patient groups. |
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E.3 | Principal inclusion criteria |
1. Patients with a diagnosis of idiopathic PD, based on a history and neurological exam performed by the enrolling investigator with presence of at least two of the three cardinal signs of PD: rigidity, bradykinesia, and rest tremor with no evidence of diagnostic alternatives.
2. Aged 18 to 85 years
3. Fulfilling diagnostic (DSM-V) criteria for a depressive disorder (i.e., major depressive disorder or persistent depressive disorder) or operationally defined subsyndromal depression (presence of two or more depressive symptoms at threshold or subthreshold levels, at least one of which has to include depressed mood or anhedonia)
4. Beck Depression Inventory-II (BDI-II) score ≥14
5. Written informed consent provided
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E.4 | Principal exclusion criteria |
1. Women who are pregnant, breastfeeding or of childbearing potential without effective contraception (hormonal or barrier method of birth control; or abstinence).Periodic abstinence (e.g.calendar, ovulation, symptothermal, post-ovulation methods) and withdrawal are not acceptable methods of contraception
2. Patients who do not have sufficient understanding of the English language to be able to read and understand the self-completed questionnaires or patients who are unable to communicate answers to the self-rating questionnaires
3. Patients with Montreal Cognitive Assessment (MoCA) score <16 or without capacity to consent
4. Treatment with an antidepressant within 4 weeks of enrolment (except for a small dose of amitriptyline up to 30 mg for indications other than depression)
5. Patients with known severe liver failure.
6. Absolute contraindications to escitalopram or nortriptyline. These include: a. Patients with known QT-interval prolongation (defined here as >420ms) or congenital long QT syndrome. b. Recent myocardial infarction, any degree of heart block or other cardiac arrhythmias.
7. Medications contraindicated on nortriptyline or escitalopram. These include: a. Non-selective and selective irreversible monoamine oxidase inhibitors (MAOIs) within 14 days. However, the antiparkinsonian selective reversible MAO-B inhibitors rasagiline, selegiline and safinamide are not contraindicated b. Concomitant QT prolonging drugs, including domperidone, apomorphine at high doses (single dose or hourly rate of >6mg), certain neuroleptics (not quetiapine or clozapine), quinine, class IA and III antiarrhythmics (amiodarone, dronedarone and disopryamide), the antihistamines astemizole, mizolastine, the antimicrobial agents sparfloxacin, moxifloxacin, erythromycin IV, pentamidine, anti-malarian treatment),and some antiretrovirals
8. Patients indicating active suicidal ideation or intent on the BDI-II item 9 and who, after clinical review of risk using the standardised Suicide Risk Management Protocol, need to be referred for immediate treatment
9. Treatment with antiparkinsonian medication is not optimized and stable within 4 weeks of receiving the trial medication and there are plans to change up to primary endpoint (8 weeks)
10. Enrolment in another clinical trial of an investigational medicinal product or device within the last 30 days
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E.5 End points |
E.5.1 | Primary end point(s) |
The primary outcome measure for the trial is, at 8 weeks of treatment, depressive symptoms measured using the Beck Depression Inventory (BDI-II) to assess clinical effectiveness against placebo.
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E.5.1.1 | Timepoint(s) of evaluation of this end point |
After 8 weeks of treatment. |
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E.5.2 | Secondary end point(s) |
At 8, 26 and 52 weeks of treatment:
Patient-reported outcomes •Level of depression as measured using the Becks Depression Inventory (BDI-II) (at weeks 26 and 52). •Level of depression on the Patient Health Questionnaire 9(PHQ9) at weeks 8, 26 and 52. •Number of participants experiencing side effects (adverse events) on the Modified Toronto Side Effects Scale and reporting of other adverse events. •Overall clinical effectiveness on the Global Clinical Impression scale (CGI) - change in health question. •Anxiety symptoms on the Parkinson Anxiety Scale. •Quality of life on the EQ-5D-5L questionnaire and the ICECAP capability measure. •Health and social care resource use on the modified Client Service Receipt Inventory (CSRI). •Changes in concomitant medication. •Participant’s trial medication guess (antidepressant or placebo).
Clinician and patient-reported outcomes •Motor and non-motor experiences on the MDS-UPDRS Part I and II, and motor examination and motor complications on the MDS-UPDRS Part III and IV. Motor severity will also be video-recorded for rating by the central trial team.
Clinician-reported outcomes •Cognitive function assessed on the Montreal Cognitive Assessment (MoCA). •Clinician’s trial medication guess. •Levodopa-equivalence dose. •Number of drop-outs.
Carer-reported outcomes (if participant has a carer) •Carer’s quality of life using the EQ-5D-5L and Carers Quality of Life Questionnaire for Parkinsonism.
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E.5.2.1 | Timepoint(s) of evaluation of this end point |
After 8, 26 and 52 weeks of treatment. |
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E.6 and E.7 Scope of the trial |
E.6 | Scope of the trial |
E.6.1 | Diagnosis | No |
E.6.2 | Prophylaxis | No |
E.6.3 | Therapy | Yes |
E.6.4 | Safety | Yes |
E.6.5 | Efficacy | Yes |
E.6.6 | Pharmacokinetic | No |
E.6.7 | Pharmacodynamic | No |
E.6.8 | Bioequivalence | No |
E.6.9 | Dose response | No |
E.6.10 | Pharmacogenetic | No |
E.6.11 | Pharmacogenomic | No |
E.6.12 | Pharmacoeconomic | No |
E.6.13 | Others | No |
E.7 | Trial type and phase |
E.7.1 | Human pharmacology (Phase I) | No |
E.7.1.1 | First administration to humans | No |
E.7.1.2 | Bioequivalence study | No |
E.7.1.3 | Other | No |
E.7.1.3.1 | Other trial type description | |
E.7.2 | Therapeutic exploratory (Phase II) | No |
E.7.3 | Therapeutic confirmatory (Phase III) | Yes |
E.7.4 | Therapeutic use (Phase IV) | No |
E.8 Design of the trial |
E.8.1 | Controlled | Yes |
E.8.1.1 | Randomised | Yes |
E.8.1.2 | Open | No |
E.8.1.3 | Single blind | No |
E.8.1.4 | Double blind | Yes |
E.8.1.5 | Parallel group | No |
E.8.1.6 | Cross over | No |
E.8.1.7 | Other | No |
E.8.2 | Comparator of controlled trial |
E.8.2.1 | Other medicinal product(s) | No |
E.8.2.2 | Placebo | Yes |
E.8.2.3 | Other | No |
E.8.2.4 | Number of treatment arms in the trial | 3 |
E.8.3 |
The trial involves single site in the Member State concerned
| No |
E.8.4 | The trial involves multiple sites in the Member State concerned | Yes |
E.8.4.1 | Number of sites anticipated in Member State concerned | 30 |
E.8.5 | The trial involves multiple Member States | No |
E.8.6 Trial involving sites outside the EEA |
E.8.6.1 | Trial being conducted both within and outside the EEA | No |
E.8.6.2 | Trial being conducted completely outside of the EEA | No |
E.8.7 | Trial has a data monitoring committee | Yes |
E.8.8 |
Definition of the end of the trial and justification where it is not the last
visit of the last subject undergoing the trial
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The end of the trial for individual participants will be the date of their last visit. Trial closure is defined as the date when all data has been received, cleaned and all queries resolved at all sites. |
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E.8.9 Initial estimate of the duration of the trial |
E.8.9.1 | In the Member State concerned years | 3 |
E.8.9.1 | In the Member State concerned months | 6 |
E.8.9.1 | In the Member State concerned days | |
E.8.9.2 | In all countries concerned by the trial years | 3 |
E.8.9.2 | In all countries concerned by the trial months | 6 |