The company is exploring the potential for continued development of HIL-214 and HIL-216 in adults In the NEST-IN1 study there were 51 primary endpoint events with 25 in the vaccine arm (n=1,425) and 26 in the placebo arm (n=1,399) resulting in vaccine efficacy of 5% (95% confidence interval; -64%, 45%). The study did not meet its primary endpoint of efficacy against moderate or severe acute gastroenteritis (AGE) events due to GI.1 or GII.4 norovirus genotypes. No clinical benefit was observed across seconda ...

"We sincerely thank the trial investigators, clinical sites and the HilleVax team for conducting a highly rigorous study, and we are deeply appreciative to the infants and families that participated in this trial," said Dr. Hershberg. The NEST-IN1 study was conducted after a Phase 2b study in adults, NOR-211, demonstrated statistically significant efficacy against moderate or severe AGE due to norovirus. The company plans to discontinue further development of HIL-214 in infants and is exploring the potentia ...

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2024 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE TRANSITION PERIOD FROM TO Commission File Number: 001-41365 HILLEVAX, INC. (Exact Name of Registrant as Specified in its Charter) | Delaware | 85-0545060 | | --- | --- | | (State or o ...

Exhibit 99.1 HilleVax Reports First Quarter 2024 Financial Results and Highlights Recent Company Progress Topline data from NEST-IN1 Phase 2B clinical study of HIL-214 in infants expected in mid-2024 $272.7 million of cash, cash equivalents and marketable securities as of March 31, 2024 BOSTON, May 9, 2024 – HilleVax, Inc. (Nasdaq: HLVX), a clinical-stage biopharmaceutical company focused on developing and commercializing novel vaccines, today reported financial results for the quarter ended March 31, 2024, ...

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-K (Mark One) ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2023 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE TRANSITION PERIOD FROM TO Commission File Number: 001-41365 HILLEVAX, INC. (Exact Name of Registrant as Specified in its Charter) Delaware 85-0545060 (State or other jurisdiction of incorp ...

Exhibit 99.1 HilleVax Reports Full Year 2023 Financial Results and Highlights Recent Company Progress Topline data from NEST-IN1 Phase 2B clinical study of HIL-214 in infants expected in mid-2024 Enrollment for NEST-IN1 study completed in Q2 2023 $303.5 million of cash, cash equivalents and marketable securities as of December 31, 2023 BOSTON, March 20, 2024 – HilleVax, Inc. (Nasdaq: HLVX), a clinical-stage biopharmaceutical company focused on developing and commercializing novel vaccines, today reported fi ...

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2023 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE TRANSITION PERIOD FROM TO Commission File Number: 001-41365 HILLEVAX, INC. (Exact Name of Registrant as Specified in its Charter) | Delaware | 85-0545060 | | --- | --- | | (State ...

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2023 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE TRANSITION PERIOD FROM TO Commission File Number: 001-41365 HILLEVAX, INC. (Exact Name of Registrant as Specified in its Charter) | Delaware | 85-0545060 | | --- | --- | | (State or ot ...

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2023 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE TRANSITION PERIOD FROM TO Commission File Number: 001-41365 HILLEVAX, INC. (Exact Name of Registrant as Specified in its Charter) If an emerging growth company, indicate by check mark ...

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-K (Mark One) ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2022 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE TRANSITION PERIOD FROM TO Commission File Number: 001-41365 HILLEVAX, INC. (Exact Name of Registrant as Specified in its Charter) | Delaware | 85-0545060 | | --- | --- | | (State or other ...