CYB004
CYB004
Deuterated Dimethyltryptamine (dDMT)
CYB004 is currently being evaluated in a Phase 2 study in Generalized Anxiety Disorder (“GAD”). The CYB004 program features:
- Short-duration treatment with convenient dosing
- Demonstrated proof-of-concept in depression and anxiety
- Robust IP protection
Cybin’s portfolio includes the most advanced and extensive DMT and deuterated DMT (“dDMT”) dataset in the neuropsychiatry drug development sector. Cybin’s internal research has also developed potentially more convenient and patient-friendly dosing methods, including intramuscular (“IM”) dosing, compared to the current intravenous (“IV”) methods used for DMT administration.
Development Status: Dosing underway in Phase 2 proof-of-concept study of CYB004 in Generalized Anxiety Disorder (“GAD”)
Next steps: Phase 2 CYB004 topline safety and efficacy data in GAD expected in Q4 2024 or early Q1, 2025.
Intellectual Property
Cybin holds the most extensive deuterated DMT IP portfolio in the sector, with more than 50 patents protecting the dDMT program, including claims directed to composition of matter, methods of use, formulation, and synthesis.
CYB004 is protected by a U.S. composition of matter patent expected to provide coverage until at least 2041.
Target Product Profile
for dDMT optimized with data from 5 clinical studies
To date, Cybin has completed five clinical trials evaluating the safety and
efficacy of CYB004 (dDMT), SPL028 (IM/IV dDMT) and SPL026 (IM/IV DMT), providing key insights informing
the development of the DMT program:
Completed Study
Key Findings
(1) Phase 1/2a DMT study in
moderate to severe MDD (no SSRIs)
(2) Phase 1 IV/IM DMT study
(3) Phase 1 SSRI DDI study
(4) Phase 1 Study of IV CYB004 (dDMT) and IV DMT
(5) Phase 1 IM/IV dDMT study
DMT demonstrated rapid and durable antidepressant and anxiolytic effect
✓46% of MDD patients in remission at 3 months
✓40% of MDD patients in remission at 6 months
✓Rapid improvement in anxiety and wellbeing scores
✓IV DMT safe and well-tolerated
Characterized safe and well-tolerated IM route and dose selection for DMT and dDMT
DMT safe and well-tolerated when co-administered with SSRIs
Potential enhanced effect when given as adjunctive to SSRIs:
✓92% remission rate in SSRI cohort vs. 20% remission (non-SSRI cohort)
Completed Study
(1) Phase 1/2a DMT study in
moderate to severe MDD (no SSRIs)
(2) Phase 1 IV/IM DMT study
(3) Phase 1 SSRI DDI study
(4) Phase 1 Study of IV CYB004
(dDMT) and IV DMT
(5) Phase 1 IM/IV dDMT study
Key Findings
DMT demonstrated rapid and durable antidepressant and anxiolytic effect
✓46% of MDD patients in remission at 3 months
✓40% of MDD patients in remission at 6 months
✓Rapid improvement in anxiety and wellbeing scores
✓IV DMT safe and well-tolerated
Characterized safe and well-tolerated IM route and dose selection for DMT and dDMT
DMT safe and well-tolerated when co-administered with SSRIs
Potential enhanced effect when given as adjunctive to SSRIs:
✓92% remission rate in SSRI cohort vs. 20% remission (non-SSRI cohort)
De-risking the development
of CYB004 in Generalized Anxiety Disorder
An exploratory analysis of Phase 2a and Phase 1b results for SPL026 (IV DMT) showed significant improvements in measures of anxiety in participants with MDD.
At two weeks, participants on SPL026+SSRIs showed a mean 23-point improvement from baseline on the State Trait Anxiety Inventory – Trait version (STAI-T).
These results suggest a reduction in anxiety symptoms with IV DMT treatment in patients with depression.
This supports the development of DMT/dDMT for the treatment of anxiety disorders, especially as there are high rates of comorbidity between depression and anxiety
Significant Unmet Need
in Generalized Anxiety Disorder
High prevalence and burden of anxiety disorders
Over 300 million people suffer from anxiety disorders worldwide1
GAD is the most common anxiety disorder seen in primary care, with a 12-month prevalence of 2.9% in the U.S.2
Approximately 77% of adults with GAD experience moderate to severe impairment3
High comorbidity with depression: 50% of patients with major depression also have an anxiety disorder4
The current standard of care is limited, and there is an urgent need for improved treatment options
50% of patients with GAD do not respond to first line treatment with antidepressants such as SSRIs and SNRIs2
Only 43% of patients with anxiety adhere to SSRI/SNRI treatment, due to side effects5
Other treatments have significant limitations:
Benzodiazepines: risk of dependence, only recommended for short term use2
Buspirone: delayed onset of effects, adherence challenges with dosing twice daily6
CYB004 has the potential to transform the current standard of care, with a new mechanism of action that could offer improved efficacy vs. existing treatments
Phase 2 CYB004
Proof-of-Concept Study in GAD
Cybin has initiated a Phase 2 study of CYB004, which is designed to evaluate efficacy in GAD, time to onset of effects, and durability of effects to twelve months. This study is being conducted in the United States.
Phase 2 study design:
Randomized, double-blind study in 36 participants with moderate to severe GAD (GAD-7 score ≥10)
Two IM doses, three weeks apart vs. Two low-dose controls
Primary endpoint: change in Hamilton Anxiety Rating Scale (“HAM-A”) score from baseline at 6 weeks following 2nd dose
Participants will be followed for a period of twelve weeks, with additional follow-up assessments up to a year
Topline safety and efficacy data expected in Q4 2024 or early Q1, 2025
To learn more about the Company’s pipeline programs and upcoming milestones, please visit the Development Pipeline page.
Sources:
1. Yang et al. (2021). Global, regional and national burden of anxiety disorders from 1990 to 2019: results from the Global Burden of Disease Study 2019. Epidemiology and Psychiatric Sciences 30, e36, 1–11. https://doi.org/10.1017/S2045796021000275/
2. Ansara E. D. (2020). Management of treatment-resistant generalized anxiety disorder. The mental health clinician, 10(6), 326–334. https://doi.org/10.9740/mhc.2020.11.326
3. Kessler et al. (2005). Prevalence, severity, and comorbidity of 12-month DSM-IV disorders in the National Comorbidity Survey Replication. Arch Gen Psychiatry, 62(6):617-27.
4. Hirschfeld R. M. (2001). The Comorbidity of Major Depression and Anxiety Disorders: Recognition and Management in Primary Care. Primary care companion to the Journal of clinical psychiatry, 3(6), 244–254. https://doi.org/10.4088/pcc.v03n0609
5. Stein et al. (2006). Antidepressant Adherence and Medical Resource Use Among Managed Care Patients With Anxiety Disorders. Psychiatric Services, 57(5): 673-680.
6. Melaragno, A.J. (2021). Pharmacotherapy for Anxiety Disorders: From First-Line Options to Treatment Resistance. Focus, 19(2): 145-160. https://doi.org/10.1176/appi.focus.20200048
