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Clinical Trial on Agitation in Alzheimer's Dementia

A Phase 2, Multicenter, Double-Blind, Randomized, Placebo-Controlled, Trial of the Safety and Efficacy of IGC-AD1 on Agitation in Participants With Dementia Due to Alzheimer's Disease

Status
Recruiting
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05543681
Acronym
CALMA
Enrollment
164
Registered
2022-09-16
Start date
2022-10-11
Completion date
2026-08-01
Last updated
2026-05-20

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

Conditions

Aggression, Agitation,Psychomotor, Alzheimer Disease, Care Giving Burden, NPS

Keywords

Cannabis, Tetrahydrocannabinol, THC, Melatonin, Alzheimer's, Marijuana, Hemp, Agitation, Dementia, Depression, Anxiety, NPI, CMAI, Dronabinol

Brief summary

The purpose of this study is to assess the efficacy of the oral medication IGC-AD1, a THC-based (Delta-9-Tetrahydrocannabinol) formulation administered twice a day on Agitation in patients with mild to severe dementia from Alzheimer's.

Detailed description

CALMA is a multi-center, double-blind, randomized, placebo-controlled clinical trial. The study targets participants aged 60 and older with mild to severe Alzheimer's dementia who have exhibited clinically significant agitation for at least two weeks prior to enrollment. Agitation caused by other conditions or transient symptoms must be ruled out. Eligibility is determined by a baseline Neuropsychiatric Inventory (NPI-12), Agitation subscale score of ≥4 and the International Psychogeriatric Association (IPA) criteria for agitation. The investigational medication is an oral solution containing two active ingredients: delta-9 tetrahydrocannabinol (THC) and melatonin. The treatment is administered for 42 days, followed by a two-day taper period at the end of the study. Safety oversight includes daily calls on days 2, 3, and 4, transitioning to calls every third day thereafter. These calls will review study partners logbook entries, changes in concomitant medications, and adverse events. The primary objective of the study is to evaluate the efficacy of IGC-AD1 on agitation, measured by changes in the Cohen-Mansfield Agitation Inventory (CMAI) scores from baseline to the End of treatment (EOT). The secondary objective is to assess efficacy by examining CMAI score changes from baseline to week two. Additionally, exploratory objectives are outlined in separate documentation. Blood samples will be collected during the trial for sparse pharmacokinetic (PK) analysis, blood-based CNS biomarker, and genotyping.

Interventions

DRUGIGC-AD1-Active

A non-sterile solution for oral administration.

DRUGIGC-AD1-Placebo

A non-sterile solution for oral administration similar in color and texture to the Active.

Sponsors

IGC Pharma, LLC
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
TRIPLE (Subject, Caregiver, Investigator)

Masking description

Double-blind for study site and participants

Intervention model description

Multi-site, Randomized, double-blind, placebo-controlled parallel-group trial in adults with mild to severe dementia from Alzheimer's and symptomatological Agitation.

Eligibility

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

Inclusion criteria

To be eligible to participate in this study, the participant must meet all the following criteria: Inclusion Criteria 1. Participant and/or Caregiver must provide a signed and dated ICF prior to any study procedures. 2. Must have a Caregiver who is able and willing to comply with all required study procedures. 3. The Caregiver must be known to the Participant and must be able to use electronic devices such as a cell phone, video conference over a laptop or cell phone, weighing scale, and be able to learn to take blood pressure, among others. 4. Based on local practice, Participants that cannot consent may have Caregiver's consent provided the Caregiver has among others a) Power of Attorney, b) is a spouse, or c) a sibling or d) a child or e) a close relation. The practice of accepting consent must be consistent with established practice at the site and jurisdiction. 5. Participants must consent to CYP450 and apolipoprotein E (ApoE) genotyping, and pharmacokinetics. 6. Diagnosis of AD by NIA-AA criteria 7. Clinically significant Agitation assessed by: 1. NPI (Agitation) ≥ 4 2. The presence of clinically significant, persistent Agitation based on the IPA definition (Appendix C) rather than those with recent onset and occasional symptoms, and 3. Agitation not attributable to another psychiatric disorder, suboptimal care conditions, other underlining medical condition, or the physiological effects of a substance. 8. Negative drug screen, except for benzodiazepines if Participant has been using them in stable doses for at least 3 months before screening. 9. All medications used for behavioral symptoms should be consistent for at least 6 weeks before screening, with allowance for dose changes up to 25%. 10. Women must be of no childbearing potential (postmenopausal, defined as cessation of menses for at least 12 months, without an alternative medical cause for amenorrhea) or surgically sterile (hysterectomy, bilateral oophorectomy, or bilateral tubal ligation)). An individual who meets any of the following criteria will be excluded from participation in this study:

Exclusion criteria

1. Prior adverse reaction to cannabinoids or to any component of Study Drug (IGC-AD1 and placebo). 2. Serious or unstable medical illness, including cardiovascular, hepatic, renal, respiratory, endocrine, neurologic, or hematologic disease, which might confound assessment of safety outcomes. 3. History of seizures, schizophrenia, or bipolar disorder. 4. Has participated in an investigational drug or device study within 30 days prior to study start. 5. Urine drug screen positive for drug use, except for benzodiazepines if Participant was using them previously and their dose had remained stable for at least six weeks before screening. 6. History of Alcohol and Drug use disorder, within one year prior to enrollment. 7. Hypertension: Participants with a history of uncontrolled hypertension as determined by the PI and Participants with a hypertensive crisis in the six months prior to enrollment. 8. Falls: Participants with a history of recurrent falls defined as more than two falls in the six-month period prior to enrollment and a history of falls resulting in injuries or associated with a new acute illness, loss of consciousness, fever, or abnormal blood pressure (Fuller et al., 2000).

Design outcomes

Primary

MeasureTime frameDescription
AgitationBaseline to week sixChange in mean Cohen Mansfield Agitation Inventory (CMAI) score

Secondary

MeasureTime frameDescription
Acute AgitationBaseline to week twoChange in mean Cohen Mansfield Agitation Inventory (CMAI) score

Countries

Canada, Colombia, Puerto Rico, United States

Contacts

CONTACTEvelyn Gutiérrez
calma@igcpharma.com+13013394270
CONTACTMargarita Venegas
mvenegas@igcpharma.com

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: May 21, 2026