Close this search box.

IGC Pharma Announces Positive Interim Results for IGC-AD1 in Reducing Alzheimer’s Agitation in Its Ongoing Phase 2 Clinical Trial


Phase 2 interim results

Both the primary and secondary objectives aim to evaluate the efficacy of IGC-AD1 in reducing agitation as assessed by the CMAI at week 2 and week 6 respectively. The results indicate that IGC-AD1 clinically reduced agitation compared to placebo.

Agitation in Alzheimer’s Dementia refers to a range of behaviors that include various forms of verbal or physical aggression, as well as excessive motor activity, such as pacing, hiding and hoarding things, repetitive behaviors, among others1.

At the six-week mark, the difference in agitation levels between the IGC-AD1 group and the placebo group was quite noticeable, with an effect size of 0.66 according to Cohen’s d measure. The Least Square mean difference in the CMAI scores between the active treatment and placebo was -10.45, which indicates a meaningful contrast. Additionally, at the two-week mark, a secondary evaluation showed a Cohen’s d effect size of 0.79 for IGC-AD1 compared to placebo.

Agitation can be distressing for both patients and caregivers, leading to increased caregiver burden, reduced quality of life, and higher rates of institutionalization for patients2,3.

With over 50 million living with Alzheimer’s worldwide5., between 25 million and 40 million people suffer from agitation as a symptom of their disease. There is a significant unmet need for a safe medication to treat this medical condition.

Agitation is associated with faster cognitive decline and accelerated progression of Alzheimer's disease, making it a significant clinical concern4

In 2023 the FDA approved Brexpiprazole, the only drug approved to treat agitation in Alzheimer’s. It is an atypical antipsychotic with a boxed warning. Our interim data set out in Table 1 shows that IGC-AD1 is safe and efficacious with a large effect size compared to placebo.

Table 1. Results of IGC-AD1 Interim Analysis and Illustrative Brexpiprazole* Phase 3 Results6

Forward-Looking Statements:

 This press release contains forward-looking statements. These forward-looking statements are based largely on IGC Pharma’s expectations and are subject to several risks and uncertainties, certain of which are beyond IGC Pharma’s control. Actual results could differ materially from these forward-looking statements as a result of, among other factors, the Company’s failure or inability to commercialize one or more of the Company’s products or technologies, including the products or formulations described in this release, or failure to obtain regulatory approval for the products or formulations, where required, or government regulations affecting AI or the AI algorithms not working as intended or producing accurate predictions; general economic conditions that are less favorable than expected; the FDA’s general position regarding cannabis- and hemp-based products; and other factors, many of which are discussed in IGC Pharma’s U.S. Securities and Exchange Commission (“SEC”) filings. IGC Pharma incorporates by reference the human trial disclosures and Risk Factors identified in its Annual Report on Form 10-K filed with the SEC on July 7, 2023, as if fully incorporated and restated herein. Considering these risks and uncertainties, there can be no assurance that the forward-looking information contained in this release will occur.


IMS Investor Relations
Walter Frank
(203) 972-9200

Janet Vasquez
(212) 645-5498

1. Sano M et al. Agitation in cognitive disorders: Progress in the International Psychogeriatric Association consensus clinical and research definition. Int Psychogeriatr. 2024;36(4):238-250.

2. Schein J et al. The Impact of Agitation in Dementia on Caregivers: A Real-World Survey. J Alzheimers Dis. 2022;88(2):663-677.

3. Etters L et al. Caregiver burden among dementia patient caregivers: a review of the literature. J Am Acad Nurse Pract. 2008;20(8):423-428.

4. Pless A et al. Understanding neuropsychiatric symptoms in Alzheimer’s disease: challenges and advances in diagnosis and treatment. Front Neurosci. 2023;17:1263771.

5. Alzheimer’s Association. 2024 Alzheimer’s Disease Facts and Figures. Alzheimers Dement 2024;20(5).

6. The comparison is for illustrative purposes and is not intended to provide a direct comparison of effectiveness between IGC-AD1 and Brexpiprazole.

*Brexpiprazole, an atypical antipsychotic that comes with a black box warning, the only FDA-approved medication for treating agitation in Alzheimer’s dementia. Source:

Recent Post

Follow Us

Related Posts