Clinical trial NCT05267535: Piromelatine 20 mg in Participants With Mild Dementia Due to Alzheimer's Disease
Official title: Randomized, Delayed Start, Double Blind, Parallel Group, Placebo Controlled, Multicenter Study of Piromelatine 20 mg in Participants With Mild Dementia Due to Alzheimer's Disease
Study type: INTERVENTIONAL
Overall status: ACTIVE_NOT_RECRUITING
Phase: PHASE2
PHASE3
Conditions: Alzheimer's Disease
Lead sponsor: Neurim Pharmaceuticals Ltd.
Sponsor class: INDUSTRY
Collaborators: name: Syneos Health
First posted: 2022-03-04
Enrollment: 225
Sex: ALL
Minimum age (years): 60
Maximum age (years): 85
Standard ages: ADULT
OLDER_ADULT
Accepts healthy volunteers: no
Allocation: RANDOMIZED
Intervention model: PARALLEL
Intervention model description: Randomized, delayed start, double blind, parallel group, placebo controlled, multicenter study
Primary purpose: TREATMENT

Brief summary: Randomized efficacy and safety study of piromelatine 20 mg versus placebo in participants with mild dementia due to Alzheimer's disease (AD) who are 2:107,510,000-107,540,000 polymorphism non-carriers with the primary objective to compare the effect of piromelatine to that of placebo on the AD Assessment Scale cognitive subscale (ADAS-cog14) at Week 26 of double-blind treatment.

Detailed description: This study of piromelatine 20 mg versus placebo in participants with mild dementia due to Alzheimer's disease is conducted as a confirmatory, randomized efficacy and safety study in participants who are 2:107,510,000-107,540,000 polymorphism non-carriers (N=225). Participants will be randomized in a 1:1 allocation ratio to receive either piromelatine 20 mg or placebo for 26 weeks. Medication is to be administered orally, one tablet daily, taken 1-2 hours before going to bed (preferably between 2100h and 2200h) and after food.

To differentiate between symptomatic effects and potential disease modifying effects of piromelatine, there will be a delayed-start open-label extension period of 12 months treatment wherein placebo-treated participants will be treated with piromelatine (20 mg daily) and the piromelatine-treated patients will be continued. This exploratory phase is aimed to continue randomized assignment of piromelatine treatment, long-term (18 months overall) to evaluate its potential disease modifying effect compared to patients in the placebo-randomized group who started the treatment after a 6-month delay.

The primary efficacy analysis (blinded) is planned after completion of the 26 weeks double blind period. If efficacy is not confirmed, then the study will be ended without completing the extension period

Eligibility criteria: Inclusion Criteria:

* Male or female aged 60 85 years (inclusive).
* Participant is an outpatient living at home or in an assisted living facility and is willing to attend all planned visits during the study.
* The participant has a study partner (who is not expected to change during the study) who will accompany the patient to the clinic, and/or be available by telephone at designated times, monitor administration of prescribed medications, control the minimum 2 hour daily light exposure requirement. The study partner must, in the opinion of the investigator, have enough contact with the participant to be able to perform the duties described above.
* Signed informed consent from the patient who has the capacity to provide informed consent as judged by the study investigator
* Signed informed consent from the study partner.
* Meets NIA AA research criteria for probable AD (McKhann, Knopman et al. 2011).
* Patient has a clearly documented history of cognitive decline over at least 12 months.
* Patient has MRI/CT scan, performed within 12 months before Screening, with findings consistent with the diagnosis of AD without any other clinically significant comorbid pathologies as detailed in Appendix 3. If MRI/CT was not performed within 12 months before Screening, it can be done during the screening period
* MMSE score of 20 26 (inclusive) at Screening and stability of MMSE - no more than three-point change on successive screening and baseline visits before randomization.
* Patient has a CDR GS of 0.5 1 (mild dementia) at Screening.
* Patients taking acetylcholinesterase inhibitors and or memantine for the treatment of AD may be enrolled if the patient has been taking such medication for at least 6 months before Visit 2 (Baseline) and is stable on any dose for the last 4 months prior to Baseline, and if the dose is not expected to change during study participation.
* Patients not receiving acetylcholinesterase inhibitors may be enrolled but must be stable off acetylcholinesterase inhibitors for at least 3 months before Baseline, and agreeable to not starting throughout the first 26 weeks of the trial.
* Patient has a negative drug screen (benzodiazepines or opiates) at Screening. Positive drug screen of BZDs, is allowed only if the use is intermittent and drug intake was 4 days or more before the visit
* Female patients must have had last natural menstruation ≥ 24 months before Screening OR be surgically sterile.
* Male patients and their female spouse/partners who are of childbearing potential must agree to use highly effective methods of contraception, consisting of 2 forms of birth control (at least one of which must be a barrier method) starting at Screening, throughout the study and for 90 days post last dose, OR be surgically sterile.
* Patients who are taking medications for non excluded concurrent medical conditions should be on a stable dose for at least 4 weeks before Screening. Patients taking allowed antidepressants (see Section 12.9) should be on a stable dose for at least 3 months before Screening and throughout the study
* Patient has ability and commitment to spend at least 2 hours per day exposed to daylight (preferably outside but can be next to a window if weather or personal situation does not permit).
* Participant and study partner have the ability to read and write in English or Spanish and have hearing, vision, and physical abilities adequate to perform assessments (corrective aids allowed).
* Participant and study partner are fully vaccinated for COVID 19 including booster doses as indicated (6 months post second dose). Having been diagnosed with COVID 19 after completing the initial full Covid vaccine would meet the requirements for a booster shot

Exclusion Criteria:

* Declines whole genome screening for 2:107,510,000-107,540,000 polymorphism and APOE4 genotyping.
* Patient is 2:107,510,000-107,540,000 polymorphism carrier.
* Patient has an alternative cause for dementia other than AD.
* A past or recent CT or MRI scan or report indicating any cortical infarct defined as \> 1.5 cm3; more than 2 lacunar infracts defined as ≤ 1.5 cm3; or diffuse white matter disease), Fazekas score of more than 1 on MRI or CT scan (more details Appendix 3).
* Patient has evidence of any clinically significant neurodegenerative disease, or other serious neurological disorders other than AD as detailed in Appendix 3,
* Patient has a concurrent psychiatric disorder that prevents his/her participation in the trial including but not limited to Schizophrenia, Bipolar and related disorders, Substance use disorders within the past 2 years, major depression, etc.
* Patient has a history of uncontrolled or untreated cardiovascular, endocrine, gastrointestinal, respiratory, or rheumatologic disorders within the past 5 years.
* Patient has a history of severe agitation and medically treated agitation.
* Patient has a history of serious infectious disease including:

  * Neurosyphilis
  * Meningitis
  * Encephalitis
* Patient has a history of a primary or recurrent malignant disease that has not been in remission for \> 5 years prior to the Screening visit, with the exceptions of excised cutaneous squamous cell carcinoma in situ, basal cell carcinoma without recurrences; and history of intraductal breast cancer, cervical carcinoma in situ, or in situ prostate cancer resected over 5 years previously. (For resected in situ prostate cancer, i.e., high grade intraepithelial neoplasia, the patient must have a normal prostate specific antigen \[PSA\] prior to Screening and no increase in PSA since his resection surgery).
* Patient has severe pain that is likely to interfere with sleep (in the opinion of the investigator).
* Patient has any concomitant documented progressive disease likely to interfere with the conduct of the study, particularly:

  * Liver disease with aspartate aminotransferase (AST), alanine aminotransferase (ALT) or gamma glutamyltransferase (GGT) \> 3 times the upper limits of normal (ULN)
  * Total bilirubin \> 3 times the ULN
  * Mean corpuscular volume \> 95 µ3 if due to chronic alcoholism
  * Renal failure with creatinine \< 30 ml / min
* Patients that are taking prohibited medications according to Appendix 2 See also section 12.9.
* Continuous use of benzodiazepines or other sedative hypnotics during the 2 weeks before Screening (see Section 12.9).
* Patient has a history of chronic use (more than 3 months of continuous use) and abuse of benzodiazepines or other sedative hypnotics.
* Use of any kind of melatonin/melatonin agonist during the 2 weeks before Screening (see Section 12.9).
* Patient has known or suspected hypersensitivity to exogenous melatonin or melatonin receptor agonists.
* Patient has clinically significant abnormal laboratory findings that have not been approved by the study safety officer.
* Patient has persistent bradycardia (heart beat \< 50 bpm) or tachycardia (heart beat \> 100 bpm).
* Patient has atrioventricular block (type II/Mobitz II and type III), congenital long QT syndrome, sinus node dysfunction or a marked prolongation of QTc interval (repeated demonstration in ECGs of QTc interval \> 450 msec for males and \> 470 msec for females using Fridericia's formula: QTc = QT/cube root of RR).
* Patient has other serious diseases that could interfere with patient assessment, in the opinion of the investigator.
* Patient has untreated B12 and/or folic acid deficiency.
* Patient has participated in a clinical trial with any investigational agent within 3 months before Screening. Participants in any former monoclonal antibody clinical trial for AD are not eligible until 6 months after the last visit of the previous study. Patients who have received active vaccine for AD in the past will be excluded.
* Patient with a body mass index (BMI) above 35 or below 18.
* Lifestyle exclusions:
* Patients unwilling to limit alcohol intake to less than 30 g of pure alcohol per day (see Appendix 1) and to abstain after 2000h throughout the study
* Patients unwilling to be exposed to at least 2 hours of daylight each day
* Divergence from the accepted level of study medication compliance (70% 130% of expected consumption) as verified at Visit 2 (see Section 12.10)
* Patients consuming more than 7 cups of tea or coffee (or equivalent amount of caffeine \[650 mg\] in other caffeinated beverages) per day
* Patients with an irregular lifestyle or life pattern (e.g., shift workers, patients likely to be jet lagged)
* Patients with evidence of serious risk of suicide based on the Columbia-Suicide Severity Rating Scale, i.e., active suicidal ideation with some intent to act, with or without a specific plan (a positive response to Suicidal Ideation Items 4 or 5) in the 6 months prior to Screening, OR with evidence of suicidal behavior in the 2 years prior to Screening (a positive response to any of the 5 Suicidal Behavior Items {actual attempt, interrupted attempt, aborted attempt, preparatory acts, or behavior}), OR who, in the opinion of the investigator, present a serious risk of suicide.

Primary outcomes:
measure: Alzheimer's Disease Assessment Scale cognitive subscale (ADAS-cog 14)
timeFrame: 26 weeks
Secondary outcomes:
measure: Alzheimer's Disease Cooperative Study - instrumental Activities of Daily Living (ADCS-iADL)
timeFrame: 26 weeks
measure: ADCS-Clinical Global Impression of Change (CGIC)
timeFrame: 26 weeks
measure: Mini-Mental State Examination (MMSE)
timeFrame: 26 weeks
measure: Clinical Safety - descriptive statistics for Adverse Events
timeFrame: 26 weeks, 78 weeks
Other outcomes:
Locations:
city: Costa Mesa
country: United States
facility: ATP Clinical Research
state: California
city: Long Beach
country: United States
facility: Collaborative Neuroscience Research, LLC
state: California
city: Long Beach
country: United States
facility: Asclepes Research Centers, P.C. Dba Alliance Research
state: California
city: San Diego
country: United States
facility: Pacific Research Network, LLC
state: California
city: Santa Ana
country: United States
facility: RAA Apex Acquisition LLC DBA Syrentis Clinical Research
state: California
city: Denver
country: United States
facility: The Mile High Research Center
state: Colorado
city: Coral Gables
country: United States
facility: Linfritz Research Institute Inc.
state: Florida
city: Greenacres City
country: United States
facility: Finlay Medical Research Corp.
state: Florida
city: Hallandale Beach
country: United States
facility: Velocity Clinical Research, Inc
state: Florida
city: Lady Lake
country: United States
facility: K2 Medical Research The Villages
state: Florida
city: Miami
country: United States
facility: Verus Clinical research Corp
state: Florida
city: Miami
country: United States
facility: BioMed Research Institute, Inc.
state: Florida
city: Miami
country: United States
facility: CCM Clinical Research Group, LLC
state: Florida
city: Miami
country: United States
facility: Advance Medical Research Center
state: Florida
city: Miami
country: United States
facility: Allied Biomedical Research Institute (Clinical Trials)
state: Florida
city: Miami
country: United States
facility: Vitae Research Center LLC.
state: Florida
city: Miami
country: United States
facility: Stein Gerontological Institute, Inc.
state: Florida
city: Miami
country: United States
facility: Miami Dade Medical Research Institute
state: Florida
city: Ocoee
country: United States
facility: K2 Medical Research Winter Garden
state: Florida
city: Orlando
country: United States
facility: Interspond, LLC,
state: Florida
city: Tampa
country: United States
facility: The University of South Florida Board of Trustees,
state: Florida
city: Wellington
country: United States
facility: Alzheimer's Research and Treatment Center
state: Florida
city: Meridian
country: United States
facility: Velocity Clinical Research, Inc
state: Idaho
city: Jersey City
country: United States
facility: Ocean Medical Research
state: New Jersey
city: Toms River
country: United States
facility: Advanced Memory Research Institute of New Jersey
state: New Jersey
city: Brooklyn
country: United States
facility: Integrative Clinical Trials LLC
state: New York
city: New York
country: United States
facility: New York University School of Medicine
state: New York
city: Matthews
country: United States
facility: AMC Research, LLC
state: North Carolina
city: Island Park
country: United States
facility: Rhode Island mood and memory research institute
state: Rhode Island
city: Cordova
country: United States
facility: Neurology Clinic, P.C.
state: Tennessee
city: Bellevue
country: United States
facility: Northwest Clinical Research Center
state: Washington
city: Milwaukee
country: United States
facility: Froedtert & Medical College of Wisconsin
state: Wisconsin
city: Nova Scotia
country: Canada
facility: Centricity Research Halifax Multispecialty
state: Halifax
city: Sarnia
country: Canada
facility: Bluewater Clinical Research Group Inc
state: Ontario
city: Toronto
country: Canada
facility: LMC Clinical Research Inc. d.b.a. Centricity Research
state: Ontario
city: Kelowna
country: Canada
facility: OCT Research ULC (dba Okanagan Clinical Trials)
city: Vancouver
country: Canada
facility: Medical Arts Health Research Group
Study officials:
affiliation: Keck School of Medicine of USC, Los Angeles, CA
name: Lon Schneider, MD
role: STUDY_CHAIR
References: