Exhibit 99.1 Rezolute Provides Insights from its Phase 3 sunRIZE Study in Congenital Hyperinsulinism and Shares Findings from its Expanded Access Program in Tumor Hyperinsulinism Company believes that data from sunRIZE and the Expanded Access Program (EAP) provide evidence of activity of ersodetug in both indications Company plans to meet with FDA to align on path forward for congenital HI REDWOOD CITY, Calif., January 7, 2025 - Rezolute, Inc. (Nasdaq: RZLT) (“Rezolute” or the “Company”), a late-stage rare disease company focused on treating hypoglycemia caused by all forms of hyperinsulinism (HI), today shared observations from the Phase 3 sunRIZE study in patients with congenital HI and provided details on the treatment of tumor HI patients with ersodetug under the Company’s EAP. Congenital HI While sunRIZE did not meet its primary (hypoglycemia events) or key secondary (time in hypoglycemia) endpoints, the Company believes that the totality of the data further supports previous clinical evidence that ersodetug is active against hypoglycemia in patients. Specifically, there was evidence of pharmacologic activity as target therapeutic drug concentrations were achieved in bot…
Open exhibit ↗Current Report · Items 7.01, 9.01 · 8-K
Rezolute, Inc.
RZLTNASDAQEQUITYCurrent
Regulation FD Disclosure
Item 7.01 Regulation FD Disclosure On January 7, 2026, Rezolute, Inc. issued, (i) a press release announcing further insights into the sunRIZE trial, (ii) a cumulative table outlining data from the initial 9 tumor HI participants in the EAP, including patient characteristics, ersodetug dosing, and observed outcomes and (iii) an updated corporate deck.…
Company context
Rezolute is a late-stage ultra-rare disease company focused on treating refractory hypoglycemia caused by any form of hyperinsulinism (HI). The Company’s antibody therapy, ersodetug, has been studied in clinical trials and used in real-world cases for the treatment of refractory hypoglycemia due to a variety of causes of HI. For more information, visit www.rezolutebio.com.
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Disclosure sections
Item 7.01Item 7.01 - Regulation FD Disclosure
Filed exhibits (2)
Exhibit 99.2 Tumor HI EAP Patient Profiles Patient 1 Patient 2 Patient 3 Patient 4 Patient 5 Patient 6 Patient 7 Patient 8# Patient 9 Gender (M/F) / Age (Years) M / 55 F / 50 F / 50 F / 43 M / 74 M / 62 M / 74 M / 53 M / 24 Diagnosis Metastatic Insulinoma Metastatic Insulinoma Neuroendocrine Carcinoma of the Cervix Metastatic Insulinoma Metastatic Insulinoma Metastatic Insulinoma Metastatic Metastatic Proinsulinoma Metastatic Insulinoma …
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