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NCT05543681Active, not recruitingPhase 2

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

Source: ClinicalTrials.gov · Last updated 30 Sept 2026

Brief summary (registry, in English)

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.

Status (registry)
Active, not recruiting
Phase (registry)
Phase 2
Study type
Interventional
Enrollment
164 (estimated)
First submitted
14 Sept 2022
Start date
11 Oct 2022
Primary completion date
Nov 2026
Lead sponsor
IGC Pharma, LLC
NCT number
NCT05543681

What you commit to

  • Study type: Interventional · Phase 2
  • Planned participants: 164
  • From 11 Oct 2022 to the primary completion date, Nov 2026
  • 28 sites in 3 countries
  • Visits and tests: ask the trial team, the registry does not list them

Built from the registry fields of ClinicalTrials.gov. It describes the study, not your situation.

Who cannot take part

Copied verbatim from ClinicalTrials.gov and grouped by topic. Only the trial team decides who can take part.

Prior treatment

  • Prior adverse reaction to cannabinoids or to any component of Study Drug (IGC-AD1 and placebo).
  • Has participated in an investigational drug or device study within 30 days prior to study start.
  • 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.
  • History of Alcohol and Drug use disorder, within one year prior to enrollment.
  • 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.
  • 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).

Other illness

  • Serious or unstable medical illness, including cardiovascular, hepatic, renal, respiratory, endocrine, neurologic, or hematologic disease, which might confound assessment of safety outcomes.
  • History of seizures, schizophrenia, or bipolar disorder.

Who the study is looking for

  • Participant and/or Caregiver must provide a signed and dated ICF prior to any study procedures.
  • Must have a Caregiver who is able and willing to comply with all required study procedures.
  • 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.
  • 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.
  • Participants must consent to CYP450 and apolipoprotein E (ApoE) genotyping, and pharmacokinetics.
  • Diagnosis of AD by NIA-AA criteria
  • Clinically significant Agitation assessed by:
    • NPI (Agitation) ≥ 4
    • The presence of clinically significant, persistent Agitation based on the IPA definition (Appendix C) rather than those with recent onset and occasional symptoms, and
    • Agitation not attributable to another psychiatric disorder, suboptimal care conditions, other underlining medical condition, or the physiological effects of a substance.
  • Negative drug screen, except for benzodiazepines if Participant has been using them in stable doses for at least 3 months before screening.
  • All medications used for behavioral symptoms should be consistent for at least 6 weeks before screening, with allowance for dose changes up to 25%.
  • 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:

Criteria the registry did not label

  • To be eligible to participate in this study, the participant must meet all the following criteria:

Age in the registry: 60 years to - · Sex: All · Does not accept healthy volunteers

Full criteria on ClinicalTrials.gov

Sites (28)

Sites in registry order. Pick your city on the disease page to sort them by distance.

SiteCityCountrySite status
Hamilton Health Sciences , Mcmaster University
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HamiltonCanadaUnknown status
Douglas Hospital Research Center, McGill university
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MontrealCanadaUnknown status
Baycrest Academy for Research and Education , University of Toronto
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TorontoCanadaUnknown status
Island Health Authorities
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VictoriaCanadaUnknown status
SCB Research Center Corp
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BayamónPuerto RicoUnknown status
Instituto Sanacoop
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BayamónPuerto RicoUnknown status
The Alliance, Medical Sciences Campus University of Puerto Rico
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Rio PiedrasPuerto RicoUnknown status
Dent Neurologic Institute
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AmherstUnited StatesUnknown status
Senior Adults Specialty Research
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AustinUnited StatesUnknown status
MedStar Franklin Square Medical Center Neurology
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BaltimoreUnited StatesUnknown status
Integrative Clinical Trials, LLC
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BrooklynUnited StatesUnknown status
Medstar Southern Maryland Hospital Center
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ClintonUnited StatesUnknown status
Kerwin Medical Center
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DallasUnited StatesUnknown status
Baylor, Scott and White Research Institute
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DallasUnited StatesUnknown status
ClinCloud, LLC
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MaitlandUnited StatesUnknown status
ClinCloud, LLC
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MelbourneUnited StatesUnknown status
Tandem Clinical Research GI, LLC
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MetairieUnited StatesUnknown status
Central Miami Medical Institute
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MiamiUnited StatesUnknown status
Visionary Investigators Network
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MiamiUnited StatesUnknown status
Miami Jewish Health
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MiamiUnited StatesUnknown status
Lynn Health Science Institute (LHSI)
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Oklahoma CityUnited StatesUnknown status
Medstar Montgomery Medical Center
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OlneyUnited StatesUnknown status
Neurostudies Inc.
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Port CharlotteUnited StatesUnknown status
Butler Hospital, Brown University
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ProvidenceUnited StatesUnknown status
Dominion Medical Associates, Inc.
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RichmondUnited StatesUnknown status
Tekton Research LLC
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St LouisUnited StatesUnknown status
Ichor Research
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SyracuseUnited StatesUnknown status
University of South Florida Department of Psychiatry and Behavioral Neurosciences
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TampaUnited StatesUnknown status

This page is information, not medical advice. Discuss any trial with your doctor.