Nature of Operations and Liquidity	3 Months Ended
Mar. 31, 2026
Nature Of Operations And Liquidity Disclosure [Abstract]
Nature of Operations and Liquidity	NOTE 1 — NATURE OF OPERATIONS AND LIQUIDITY Nature of Operations Minerva Neurosciences, Inc. (“Minerva” or the “Company”) is a clinical-stage biopharmaceutical company focused on the development and commercialization of certain proprietary product candidates to treat patients suffering from central nervous system (“CNS”) diseases. The Company’s lead product candidate, roluperidone, is in development for the treatment of negative symptoms in patients diagnosed with schizophrenia. In August 2022, the Company submitted a New Drug Application (“NDA”) with the U.S. Food and Drug Administration (“FDA”) for roluperidone for the treatment of negative symptoms in schizophrenia. On February 26, 2024, the FDA issued a Complete Response Letter (“CRL”) regarding the NDA for roluperidone. Subsequent to the CRL, the Company has had multiple interactions with the FDA to confirm the design of an additional Phase 3 confirmatory clinical trial to address the deficiencies cited in the CRL and resubmit the NDA. Consistent with the previous Phase 2b (C03) and Phase 3 (C07) clinical trials of roluperidone, the new Phase 3 confirmatory trial, which the Company refers to as the C19 trial, will include patients diagnosed with schizophrenia who present with stable impairing negative symptoms and stable positive symptoms for the six months prior to entering the trial. The Company agreed with the FDA that best efforts will be made to secure 25-30% of patients from the United States, subject to competitive recruitment. The FDA confirmed that roluperidone can be studied in monotherapy where patients will receive a double-blinded single daily 64 mg dose of roluperidone or placebo. The FDA advised that, to support a monotherapy indication, it would be necessary to assess relapses on an observational basis for at least 52 weeks, in patients treated in monotherapy with roluperidone, placebo or antipsychotics. The FDA also stated that it would consider a resubmission of the NDA that included a double-blind, placebo- or active-controlled trial of roluperidone with a duration of at least 52 weeks with the efficacy primary endpoint at week 12. On March 31, 2026, the Company announced that the first patient had been screened in the C19 trial. The trial is designed to enroll 380 patients, randomized on a 1:1 basis to receive either placebo or a double-blinded single daily 64 mg dose of roluperidone. The primary efficacy endpoint is expected to be the change from baseline in the PANSS Marder negative symptoms factor score (“NSFS”) at 12 weeks of treatment with roluperidone compared to placebo. Following the initial 12-week treatment period, patients are expected to enter a 40-week relapse assessment phase, during which patients will crossover to receive either a daily 64 mg dose of roluperidone or antipsychotics. The Company expects topline efficacy results in the second half of 2027 and relapse assessment data in the second half of 2028. In addition, the Company previously co-developed seltorexant with Janssen Pharmaceutica NV (“Janssen”), a subsidiary of Johnson & Johnson, for the treatment of insomnia disorder and adjunctive treatment of Major Depressive Disorder (“MDD”). As a result of the Company’s collaboration with Janssen, it was entitled to collect royalties in the mid-single digits on potential future worldwide sales of seltorexant in certain indications, with no further financial obligations to Janssen. In January 2021, the Company sold its rights to these potential royalties to Royalty Pharma plc (“Royalty Pharma”) for a $60 million cash payment and up to an additional $95 million in potential future milestone payments, subject to completion of Phase 3 trials by Janssen and regulatory approvals. To the Company’s knowledge, Janssen is currently recruiting patients under a Phase 3 trial with seltorexant. Liquidity The accompanying interim condensed consolidated financial statements have been prepared as though the Company will continue as a going concern, which contemplates the realization of assets and satisfaction of liabilities in the normal course of business. The Company has limited capital resources and has incurred recurring operating losses and negative cash flows from operations since inception. As of March 31, 2026, the Company had an accumulated deficit of approximately $814.2 million and net cash used in operating activities was approximately $5.4 million during the three months ended March 31, 2026. Management expects to continue to incur operating losses and negative cash flows from operations in the future. The Company has financed its operations to date from proceeds from the sale of convertible preferred stock, common stock, warrants, loans, convertible promissory notes, collaboration agreements and royalty sales. As of March 31, 2026, the Company had cash, cash equivalents, marketable securities and restricted cash of $78.2 million. The Company believes that this amount will be sufficient to meet the Company’s operating commitments for at least twelve months from the date that its interim condensed financial statements are issued. On October 23, 2025, the Company completed a private placement of preferred stock and warrants for up to $200 million in gross proceeds, before deducting placement agent fees and other expenses, through a private placement that included an initial upfront funding of $80 million in gross proceeds in exchange for 80,000 shares of the Company’s Series A convertible preferred stock, and up to an additional $80 million in gross proceeds if all 80,000 Tranche A warrants are exercised, subject to the terms and conditions specified therein. Additional proceeds of $40 million may be received in connection with cash exercise of all 40,000 Tranche B warrants upon the achievement of a milestone event. The net proceeds of this private placement is being used to finance the confirmatory Phase 3 trial of roluperidone, preparation and resubmission of its NDA, the readiness of the commercial launch of roluperidone in the U.S., if approved, and for working capital and general corporate purposes. The process of drug development can be costly, and the timing and outcomes of clinical trials are uncertain. The assumptions upon which the Company has based its estimates are routinely evaluated and may be subject to change. The actual amount of the Company’s expenditures will vary depending upon many factors, including, but not limited to, the design, timing and duration of future clinical trials, the progress of the Company’s research and development programs, the infrastructure to support a commercial enterprise, and the level of financial resources available. The Company can adjust its operating plan spending levels based on the timing of future clinical trials, which are predicated upon adequate funding to complete the trials. The Company routinely evaluates the status of its clinical development programs as well as potential strategic options.

Nature of Operations and Liquidity

3 Months Ended

Mar. 31, 2026

Nature Of Operations And Liquidity Disclosure [Abstract]

NOTE 1 — NATURE OF OPERATIONS AND LIQUIDITY

Nature of Operations

Minerva Neurosciences, Inc. (“Minerva” or the “Company”) is a clinical-stage biopharmaceutical company focused on the development and commercialization of certain proprietary product candidates to treat patients suffering from central nervous system (“CNS”) diseases.

The Company’s lead product candidate, roluperidone, is in development for the treatment of negative symptoms in patients diagnosed with schizophrenia. In August 2022, the Company submitted a New Drug Application (“NDA”) with the U.S. Food and Drug Administration (“FDA”) for roluperidone for the treatment of negative symptoms in schizophrenia. On February 26, 2024, the FDA issued a Complete Response Letter (“CRL”) regarding the NDA for roluperidone. Subsequent to the CRL, the Company has had multiple interactions with the FDA to confirm the design of an additional Phase 3 confirmatory clinical trial to address the deficiencies cited in the CRL and resubmit the NDA.

Consistent with the previous Phase 2b (C03) and Phase 3 (C07) clinical trials of roluperidone, the new Phase 3 confirmatory trial, which the Company refers to as the C19 trial, will include patients diagnosed with schizophrenia who present with stable impairing negative symptoms and stable positive symptoms for the six months prior to entering the trial. The Company agreed with the FDA that best efforts will be made to secure 25-30% of patients from the United States, subject to competitive recruitment. The FDA confirmed that roluperidone can be studied in monotherapy where patients will receive a double-blinded single daily 64 mg dose of roluperidone or placebo. The FDA advised that, to support a monotherapy indication, it would be necessary to assess relapses on an observational basis for at least 52 weeks, in patients treated in monotherapy with roluperidone, placebo or antipsychotics. The FDA also stated that it would consider a resubmission of the NDA that included a double-blind, placebo- or active-controlled trial of roluperidone with a duration of at least 52 weeks with the efficacy primary endpoint at week 12.

On March 31, 2026, the Company announced that the first patient had been screened in the C19 trial. The trial is designed to enroll 380 patients, randomized on a 1:1 basis to receive either placebo or a double-blinded single daily 64 mg dose of roluperidone. The primary efficacy endpoint is expected to be the change from baseline in the PANSS Marder negative symptoms factor score (“NSFS”) at 12 weeks of treatment with roluperidone compared to placebo. Following the initial 12-week treatment period, patients are expected to enter a 40-week relapse assessment phase, during which patients will crossover to receive either a daily 64 mg dose of roluperidone or antipsychotics. The Company expects topline efficacy results in the second half of 2027 and relapse assessment data in the second half of 2028.

In addition, the Company previously co-developed seltorexant with Janssen Pharmaceutica NV (“Janssen”), a subsidiary of Johnson & Johnson, for the treatment of insomnia disorder and adjunctive treatment of Major Depressive Disorder (“MDD”). As a result of the Company’s collaboration with Janssen, it was entitled to collect royalties in the mid-single digits on potential future worldwide sales of seltorexant in certain indications, with no further financial obligations to Janssen. In January 2021, the Company sold its rights to these potential royalties to Royalty Pharma plc (“Royalty Pharma”) for a $60 million cash payment and up to an additional $95 million in potential future milestone payments, subject to completion of Phase 3 trials by Janssen and regulatory approvals. To the Company’s knowledge, Janssen is currently recruiting patients under a Phase 3 trial with seltorexant.

Liquidity

The accompanying interim condensed consolidated financial statements have been prepared as though the Company will continue as a going concern, which contemplates the realization of assets and satisfaction of liabilities in the normal course of business. The Company has limited capital resources and has incurred recurring operating losses and negative cash flows from operations since inception. As of March 31, 2026, the Company had an accumulated deficit of approximately $814.2 million and net cash used in operating activities was approximately $5.4 million during the three months ended March 31, 2026. Management expects to continue to incur operating losses and negative cash flows from operations in the future. The Company has financed its operations to date from proceeds from the sale of convertible preferred stock, common stock, warrants, loans, convertible promissory notes, collaboration agreements and royalty sales.

As of March 31, 2026, the Company had cash, cash equivalents, marketable securities and restricted cash of $78.2 million. The Company believes that this amount will be sufficient to meet the Company’s operating commitments for at least twelve months from the date that its interim condensed financial statements are issued. On October 23, 2025, the Company completed a private placement of preferred stock and warrants for up to $200 million in gross proceeds, before deducting placement agent fees and other expenses, through a private placement that included an initial upfront funding of $80 million in gross proceeds in exchange for 80,000 shares of the Company’s Series A convertible preferred stock, and up to an additional $80 million in gross proceeds if all 80,000 Tranche A warrants are exercised, subject to the terms and conditions specified therein. Additional proceeds of $40 million may be received in connection with cash exercise of all 40,000 Tranche B warrants upon the achievement of a milestone event.

The net proceeds of this private placement is being used to finance the confirmatory Phase 3 trial of roluperidone, preparation and resubmission of its NDA, the readiness of the commercial launch of roluperidone in the U.S., if approved, and for working capital and general corporate purposes.

The process of drug development can be costly, and the timing and outcomes of clinical trials are uncertain. The assumptions upon which the Company has based its estimates are routinely evaluated and may be subject to change. The actual amount of the Company’s expenditures will vary depending upon many factors, including, but not limited to, the design, timing and duration of future clinical trials, the progress of the Company’s research and development programs, the infrastructure to support a commercial enterprise, and the level of financial resources available. The Company can adjust its operating plan spending levels based on the timing of future clinical trials, which are predicated upon adequate funding to complete the trials. The Company routinely evaluates the status of its clinical development programs as well as potential strategic options.