RL-007 was well tolerated and demonstrated a clinically meaningful pro-cognitive profile
Changes in quantitative electroencephalogram (qEEG) were consistent with the results of a previous Phase 1 trial of RL-007
These results support the progression of RL-007 to a double-blind, placebo-controlled Phase 2 trial focused on cognition
atai Life Sciences (Nasdaq: ATAI) (“atai”), a clinical-stage biopharmaceutical company aiming to transform the treatment of mental health disorders, today announced positive topline data from its Phase 2a study of RL-007 for Cognitive Impairment Associated with Schizophrenia (CIAS).
The 32-patient, single-arm, single-blind study demonstrated a clinically meaningful pro-cognitive profile for RL-007, based on analysis of general cognition and episodic memory. Additionally, the trial showed changes in quantitative electroencephalogram (qEEG) that are consistent with previous results of a prior study of healthy volunteers. Together, the results support atai’s decision to progress RL-007 to a double-blind, placebo-controlled Phase 2 trial focused on cognition.
The topline Phase 2a data showed dose-related improvements on exploratory cognitive endpoints. These included the Brief Assessment of Cognition in Schizophrenia, Symbol Coding Test (Symbol Coding) and Hopkins Verbal Learning Task (HVLT), focusing on general cognitive function and episodic memory, respectively.1,2 The dose-responsive improvement of Symbol Coding and HVLT replicated the previously observed cognitive bi-phasic dose response of RL-007. Importantly, Symbol Coding is a highly sensitive cognitive endpoint in CIAS patients, has a high correlation with patient outcome, and is a key component of the Measurement and Treatment Research to Improve Cognition in Schizophrenia (MATRICS) Consensus Cognitive Battery (MCCB™).3
In addition to the pro-cognitive effects, a dose dependent response in qEEG was observed, with the greatest increases seen in 20mg and 40mg doses of RL-007. The qEEG data demonstrated salient increases in amplitude in the alpha band (up to 17% increase in normalized, baseline adjusted band power) and in the alpha-slow wave index (up to 21% increase), both markers of alertness believed to correlate with aspects of cognition.4
Notably, these findings recapitulate promising results from a previous study of RL-007 in a human model of cognitive impairment utilizing a scopolamine challenge. This previous trial observed similar qEEG responses and changes in a word recall task within the same dose range. Recognify Life Sciences, an atai Life Sciences platform company, is conducting the current and upcoming RL-007 trials in CIAS.
“The impact of cognitive impairment in schizophrenia can be debilitating and limit the ability of patients to conduct everyday tasks. These Phase 2a results further reinforce our belief in RL-007 to provide benefit in this challenging condition,” said Florian Brand, CEO and Co-Founder of atai Life Sciences.
“These exciting Phase 2a results extend previously observed clinical activities of RL-007 to CIAS patients and support advancement to the next clinical trial, which will be designed to assess cognitive benefits in a double-blind, placebo-controlled manner,” said Matthew Pando, PhD, CEO and Co-Founder of Recognify Life Sciences. “These results demonstrate RL-007’s potential in CIAS, a major area of unmet patient need that presently lacks approved therapies.”
Following these promising findings, atai has committed to initiate a randomized, double-blind, placebo-controlled, proof-of-concept Phase 2 study of RL-007. In addition to symbol coding and HVLT, this trial will also include other cognitive tests taken from the MCCB.
Schizophrenia is a mental health disorder affecting over 21 million people globally and approximately 3.5 million people in the United States.5,6 While some symptoms, like delusions and hallucinations can be managed with antipsychotic medications, over 80% of patients suffer from significant cognitive impairment, which has no approved treatment and can be severely debilitating.7,8 Such cognitive deficits contribute significantly to the disability associated with this condition, impacting the ability of those with schizophrenia to carry out basic tasks necessary for independent living.9
RL-007 Key Opinion Leader Event, January 18, 2022
atai will host an event featuring a presentation by Richard S.E. Keefe, PhD, of Duke University. Dr Keefe will discuss the current treatment landscape and unmet medical need in treating patients with CIAS, and will be followed by Matthew Pando, PhD, CEO and Co-Founder of Recognify Life Sciences, who will discuss the design of this recently completed Phase 2a trial for RL-007 and the preliminary topline data. The event is scheduled for January 18, 2022, at 12 PM ET. You are required to register in advance for the webcast, here. For those who are unable to listen at this time, a replay of the call will be available by clicking here.
About the RL-007 Phase 2a trial
The Phase 2a trial was a single-arm, single blind, multiple-dose study of oral RL-007 administered to subjects with schizophrenia. A total of four, 8-patient cohorts (32 subjects in total) were enrolled, testing the 10mg, 20mg, 40mg, and 80mg doses of RL-007, administered 3 times/day. Patients enrolled had to be on a stable dosing regimen of a protocol-allowed antipsychotic regimen, and they continued their antipsychotic treatment without change throughout the course of this study. All subjects received four doses of placebo followed by six doses of RL-007, although subjects were blinded to the dose strength and sequence of active and placebo capsules.
RL-007 is a neuromodulator that potently enhances synaptic plasticity by modulating excitatory neurotransmission and the cholinergic and gamma-aminobutyric acid type B (GABA type B) receptor systems, all of which are central to learning and memory functions. With its unique mechanism of action, atai believes RL-007 may enhance pro-cognitive functioning, such as neuronal signaling, learning, and memory.
About atai Life Sciences
atai is a clinical-stage biopharmaceutical company aiming to transform the treatment of mental health disorders. atai was founded in 2018 as a response to the significant unmet need and lack of innovation in the mental health treatment landscape. atai is dedicated to acquiring, incubating, and efficiently developing innovative therapeutics to treat depression, anxiety, addiction, and other mental health disorders.
atai’s business model combines funding, technology, scientific and regulatory expertise with a focus on psychedelic therapy and other drugs with differentiated safety profiles and therapeutic potential. By pooling resources and best practices, atai aims to responsibly accelerate the development of new medicines across its companies, seeking to effectively treat and ultimately heal mental health disorders.
atai’s vision is to heal mental health disorders so that everyone, everywhere can live a more fulfilled life. atai has offices in New York, London, and Berlin. For more information, please visit www.atai.life.
- Jaeger J. Digit Symbol Substitution Test: The Case for Sensitivity Over Specificity in Neuropsychological Testing. J Clin Psychopharmacol. 2018;38(5):513-519.
- Benedict RHB, Schretlen D, Groninger L, Brandt J. Hopkins verbal learning test – Revised: Normative data and analysis of inter-form and test-retest reliability. Clinical Neuropsychologist. 1998;12(1):43-55.
- MATRICS Assessment, Inc. MCCB Neuropsychological Assessment. http://www.matricsinc.org/mccb/. Accessed December 13, 2021.
- Ramsay IS, Lynn PA, Schermitzler B, Sponheim SR. Individual alpha peak frequency is slower in schizophrenia and related to deficits in visual perception and cognition [published correction appears in Sci Rep. 2021 Oct 11;11(1):20497]. Sci Rep. 2021;11(1):17852.
- Charlson FJ, Ferrari AJ, Santomauro DF, et al. Global Epidemiology and Burden of Schizophrenia: Findings From the Global Burden of Disease Study 2016. Schizophr Bull. 2018;44(6):1195-1203.
- Wander C. Schizophrenia: opportunities to improve outcomes and reduce economic burden through managed care. Am J Manag Care. 2020;26(3 Suppl):S62-S68.
- Reichenberg A, Harvey PD, Bowie CR, et al. Neuropsychological function and dysfunction in schizophrenia and psychotic affective disorders. Schizophr Bull. 2009;35(5):1022-1029.
- Hsu WY, Lane HY, Lin CH. Medications Used for Cognitive Enhancement in Patients With Schizophrenia, Bipolar Disorder, Alzheimer’s Disease, and Parkinson’s Disease. Front Psychiatry. 2018;9:91.
- Bowie CR, Harvey PD. Cognitive deficits and functional outcome in schizophrenia. Neuropsychiatr Dis Treat. 2006;2(4):531-536.
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VP, Communications, atai Life Sciences
VP, Investor Relations, atai Life Sciences