E.1 Medical condition or disease under investigation |
E.1.1 | Medical condition(s) being investigated |
Cognitive dysfunction
Major depressive disorder (MDD) |
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E.1.1.1 | Medical condition in easily understood language |
Cognitive dysfunction
Depression |
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E.1.1.2 | Therapeutic area | Psychiatry and Psychology [F] - Mental Disorders [F03] |
MedDRA Classification |
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 |
• to determine whether Lu AA21004 compared to placebo in subjects remitted from depression modulates the blood oxygen level dependent (BOLD) signal in functional magnetic resonance imaging (fMRI) of the brain areas associated with executive function (working memory) during performance of the N-back task. The regions of interest are
within the prefrontal cortex and anterior cingulate
• to determine whether Lu AA21004 compared to placebo in subjects remitted from depression modulates the blood oxygen level dependent (BOLD) signal in functional magnetic resonance imaging (fMRI) of the brain areas associated with spatial memory during performance of the Arena task., The region of interest is hippocampus
• to evaluate the effects of Lu AA21004 compared to placebo in subjects remitted from depression on the BOLD signal in fMRI in other brain regions involved in the regulation of cognitive processes during working memory and planning performance (N-back and Arena task) |
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E.2.2 | Secondary objectives of the trial |
Performance
• to explore the effects of Lu AA21004 compared to placebo on cognitive performance including executive function, memory, speed of processing, attention and cognitive flexibility measured using N-back, Arena, DSST, RAVLT, TMT A/B and Implicit IDED
• to evaluate the effects of Lu AA21004 compared to placebo on emotional processing using the P1vital® Oxford Emotional Test Battery (ETB)
• to evaluate the baseline characteristics of cognitive performance (N-back, Arena, DSST, RAVLT, TMT A/B, IDED) and BOLD signal in fMRI (during N-back and Arena) in subjects remitted from depression compared to controls
• to compare the effects of Lu AA21004 to placebo on cognitive performance (N-back, Arena, DSST, RAVLT, TMT A/B, IDED), processing (ETB) and BOLD signal in fMRI (during N-back and Arena) in subjects remitted from depression compared to controls |
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E.2.3 | Trial contains a sub-study | No |
E.3 | Principal inclusion criteria |
- The subject is able to read and understand the Subject Information Sheet and Informed
Consent Form.
- The subject and the physician have signed the study-specific Informed Consent Form. No study-related procedures, including any screening procedures, may be performed before the physician has obtained written informed consent from the subject.
- The subject is fluent in English.
- The subject is a man or woman.
- If woman, the subject must:
-agree not to try to become pregnant from Screening until after the Follow-up Visit, AND
- use adequate, highly effective contraception (defined as those that result in a low failure rate [that is, <1% per year] when used consistently and correctly, for example, implants, injectables, combined oral contraceptives, some intrauterine devices, sexual abstinence, vasectomised partner), OR
-have had her last natural menstruation at least 24 months prior to baseline, OR
-have been surgically sterilised prior to Screening, OR
-have had a hysterectomy prior to Screening, OR
-have a partner who has been surgically sterilised prior to baseline, OR
-not be sexually active with opposite gender
- The subject is >25 years of age and <55 years of age at the Screening Visit.
- The subject has a BMI >18 kg/m2 and <36 kg/m2 at the Screening Visit.
- The subject has a total HAM-D17 score ≤ 7
Subject remitted from depression must:
- Be in remission from recurrent depression (DSM-IV-TRTM criteria, classification code 296.3x) having suffered from at least two previous MDEs.
- Have received prescribed treatment with an antidepressant or a recognised psychotherapy for depression (e.g. cognitive behaviour therapy) for a previous MDE.
- Report present subjective cognitive dysfunction (such as difficulty concentrating, slow thinking, and difficulty in learning new things or remembering things).
- Have not been treated with antidepressants or received other psychotherapy for depression for at least six weeks prior to Screening Visit. |
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E.4 | Principal exclusion criteria |
1. The subject has taken OTC medicine within 48 hours prior to safety baseline. Subjects who have taken OTC medication may still be entered into the study, if, in the opinion of the Investigator, the medication received will not interfere with the study procedures or compromise safety.
2. The subject has a resting systolic blood pressure <91 mmHg or >150 mmHg or a resting diastolic blood pressure <51 mmHg or >90 mmHg. An out-of-range resting systolic blood pressure may be repeated once if a medically valid reason is present, for example, the subject suffers from white-coat hypertension or has just come from low outdoor
temperatures. The medically valid reason must be documented and signed by the investigator or study physician.
3. The subject has a resting pulse <51 bpm or >100 bpm. For subjects in good physical
condition, the lower limit is <45 bpm.
4. The subject has any of the following:
-an abnormal ECG that is, in the investigator’s opinion, clinically significant
-a PR interval >250 ms
-a QRS interval >130 ms
-a QTcF interval >450 ms (for men) or >470 ms (for women) (based on the Fridericia correction where QTcF = QT/RR0.33)
5. The subject has a value of thyroid stimulating hormone (TSH) outside the normal range.
6. The subject has one or more clinical safety laboratory test values outside the reference range, based on the blood and urine samples that are of potential risk to the subject’s safety, or the subject has:
-a serum creatinine value >1.5 times the upper limit of the reference range
-a serum total bilirubin value >1.5 times the upper limit of the reference range
-a serum alanine aminotransferase (ALT) or aspartate aminotransferase (AST) value >2 times the upper limit of the reference range
7. The subject has a history of alcohol or other substance abuse or dependence (DSM-IVTR™ criteria) within the last 2 Years.
8. In the opinion of the Investigator the subject is at risk of suicide.
9. The subject uses hypnotics regularly.
10. The subject has a positive reading on the drugs of abuse test (opiates, methadone, cocaine, amphetamines (including ecstasy), barbiturates, benzodiazepines and cannabinoids).
11. The subject consumes more than 8 cups of standard caffeinated drinks (tea, instant coffee etc.) or 6 cups of stronger coffee or other drinks containing methylxanthines (such as coca cola or Red Bull) per day.
12. The subject smokes > 5 cigarettes per day.
13. The subject is left-handed.
14. The subject is colour blind.
15. The subject has physical, cognitive, or language impairment of such severity as to adversely affect the validity of the data derived from the cognitive tests.
16. The subject is diagnosed with reading disability (dyslexia).
17. The subject is currently receiving formal cognitive or behavioural psychotherapy or systematic psychotherapy, or plans to start such therapy during the study.
18. The subject has been treated with electroconvulsive therapy within 12 months prior to Screening Visit.
19. The subject has taken any investigational products within 3 months prior to the first dose of IMP.
20. The subject has previously been dosed with Lu AA21004.
21. The subject has known hypersensitivity to any of the IMPs or their excipients.
22. The subject has a history of severe drug allergy or hypersensitivity.
23. The subject is pregnant or breastfeeding.
24. The subject has previous experience of the emotional test battery experimental procedures.
25. The subject has any current Axis I disorder (DSM-IV-TR™ criteria) assessed by the SCID-I.
26. The subject has a current diagnosis or history of manic or hypomanic episode, schizophrenia or any other psychotic disorder, including major depression with psychotic features.
27. The subject suffers from personality disorders, mental retardation, pervasive development disorder, attention-deficit/hyperactivity disorder, organic mental disorders, or mental disorders due to a general medical condition (DSM-IV-TR™ criteria).
28. The subject has a history of cancer, except for basal cell or Stage 1 squamous cell carcinoma of the skin which has been in remission for at least 5 years prior to the first dose of IMP.
29. The subject has a history of moderate or severe head trauma (for example, loss of consciousness for more than 1 hour) or other neurological disorders or systemic medical diseases that are, in the opinion of the investigator, likely to affect central nervous system functioning.
30. The subject has a current diagnosis or history of stroke or Transient Ischemic Attack (TIA).
31. The subject has had surgery or trauma with significant blood loss within the last 3 months prior to the first dose of IMP.
32. The subject suffers from claustrophobia or needle phobia.
33. The subject is unable to comply with Magnetic Resonance Declaration.
34. The subject has a clinically relevant structural brain abnormality as determined by MRI.
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E.5 End points |
E.5.1 | Primary end point(s) |
Imaging Endpoints
•N-Back: BOLD fMRI activity during the 0 (control), 1, 2 and 3 back conditions of the task.
•Arena Task: BOLD fMRI activity while performing the encoding and retrieval trials.
•Resting State: BOLD fMRI activity in resting state in fMRI-derived networks
•ASL: Perfusion level (absolute inflow of arterial blood)
Cognitive Performance Endpoints
•N-Back: Accuracy, Individual average reaction time, d’
•Arena Task: Average distance from the pole in the retrieval phase.
•DSST: Number of correct symbols (change from baseline) Day 13
•RAVLT: Acquisition, delayed recall (Change from baseline) Day 13
•Trail Making A/B: Time to completion using both the TMT A and TMT B (change from baseline) Day 13
•Implicit IDED: Vigilance (Reaction time), Vigilance (accuracy) Day 13
•EMEM: Total number of words recalled for each valence, Commission errors
•EREC: False alarms, hits, d’, Response bias, Individual average reaction time for (ms) correct answers
•FERT: Accuracy, Individual average reaction time, d’, Number of misclassifications for each emotion,
Response bias
•FDOT: Individual average reaction time, Vigilance scores, Accuracy
•ECAT: Number of words categorised as like and disliked
Scales Endpoints
•SCID-I – at baseline
•NART IQ - at baseline (= at screening)
•HAM-D17 total score – at baseline and change from baseline
•BDI-II total score – at baseline and change from baseline
•STAI subsore of State – at baseline and change from baseline
•STAI subsore of Trait – at baseline and change from baseline
•PANAS subscore of PA– at baseline and change from baseline
•PANAS subscore of NA– at baseline and change from baseline
•PDQ total score and subscales scores – at baseline and change from baseline
•BRIEF-A – at baseline and change from baseline
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E.5.1.1 | Timepoint(s) of evaluation of this end point |
Refer to the protocol “Summary of study procedures and assessments” for evaluation timepoints |
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E.5.2 | Secondary end point(s) |
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E.5.2.1 | Timepoint(s) of evaluation of this end point |
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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 | No |
E.6.4 | Safety | Yes |
E.6.5 | Efficacy | Yes |
E.6.6 | Pharmacokinetic | Yes |
E.6.7 | Pharmacodynamic | Yes |
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) | Yes |
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) | No |
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 | Yes |
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 | 2 |
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 | 3 |
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 | No |
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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E.8.9 Initial estimate of the duration of the trial |
E.8.9.1 | In the Member State concerned years | 0 |
E.8.9.1 | In the Member State concerned months | 9 |
E.8.9.1 | In the Member State concerned days | 0 |