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CALMA
RecruitingPhase 2Clinical 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
Lead sponsor
Asset
IGC AD1
Listed sites
31
Recruiting sites
28
Enrollment
164
estimated
Study population
Alzheimer’s disease
Key I/E criteria
•Alzheimer's disease•Study partner/caregiver required
Primary endpoint
•Agitation
Footprint
Where this trial recruits
Site locations as reported to ClinicalTrials.gov. Site count is not enrollment count; per-site enrollment is not available from source.
Identifiers
Registered as
Timeline
Milestones
Assets
Drug assets
Study populations
Who this study enrolls
Eligibility
Who can enroll
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
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).
Endpoints (11)
What's being measured
Protocol endpoints and posted registry outcome measures, grouped into outcome categories. Composite endpoints show their component event types. Standard codes (LOINC, SNOMED CT) are shown where available.
Coverage by outcome category
Global cognition
1 endpointParticipant executive functions
Time frame:Baseline to week six
Mini-Mental State Examination (MMSE)
change from baseline, improvement
Behavior / neuropsychiatric
6 endpointsAgitation
Time frame:Baseline to week six
change from baseline, improvement
Acute Agitation
Time frame:Baseline to week two
change from baseline, improvement
Agitation at week four
Time frame:Baseline to week four
change from baseline, improvement
Depression
Time frame:Baseline to weeks two, four, and six
change from baseline, improvement
Neuropsychiatric symptoms
Time frame:Baseline to weeks two, four, and six
Neuropsychiatric Inventory (NPI)
change from baseline, improvement
CYP2C9 polymorphisms on agitation
Time frame:Baseline to weeks two, four and six
change from baseline, improvement
Caregiver / quality of life
2 endpointsParticipant quality of life
Time frame:Baseline to weeks two, four and six
change from baseline, improvement
Caregiver burden
Time frame:Baseline to weeks two and six
change from baseline, improvement
Other clinical outcomes
1 endpointParticipant overall wellbeing
Time frame:Baseline to weeks two and six
change from baseline, improvement
Other (unclassified)
1 endpointPsychotropic drugs
Time frame:Baseline to six weeks
change from baseline, improvement
Provenance
Sources
Trial facts come from public ClinicalTrials.gov records. Endpoint categories are Delfa's classification of those records, not a ClinicalTrials.gov field. All figures reflect the July 21, 2026 snapshot.