Exhibit 99.1

AETERNA ZENTARIS INC.

Report of Voting Results

Submitted Pursuant to

Section 11.3 of National Instrument 51-102 – Continuous Disclosure Obligations

June 14, 2023

In accordance with Section 11.3 of National Instrument 51-102 – Continuous Disclosure Obligations, this report describes the matters voted upon and the outcome of the votes at the annual general and special meeting of shareholders of Aeterna Zentaris Inc. (the “Company”) held on June 14, 2023 via live audio webcast. Each of the matters is described in greater detail in the Company’s management information circular dated May 9, 2023 (the “Circular”).

(a) The five nominees set forth in the Circular were elected as directors of the Company to hold office until the close of the next annual meeting of the Company’s shareholders or until their successors are duly elected or appointed. The following are the voting results on this matter:

	FOR		% FOR			AGAINST		% AGAINST
Peter Edwards		401,912		68.94	%		181,057		31.06	%
Carolyn Egbert		296,499		50.86	%		286,470		49.14	%
Gilles Gagnon		402,690		69.08	%		180,279		30.92	%
Dr. Klaus Paulini		317,211		54.41	%		265,758		45.59	%
Dennis Turpin		298,514		51.21	%		284,455		48.79	%

(b) Deloitte LLP was appointed as the Company’s auditors and the directors were authorized to fix the remuneration to be paid to the auditors. The following are the voting results on this matter:

	FOR		% FOR			WITHHELD		%WITHHELD
Appointment of Auditors		1,157,809		83.18	%		234,119		16.82	%

Dated this 14^th day of June, 2023.

AETERNA ZENTARIS INC.
By:	(signed) Giuliano La Fratta
Name:	Giuliano La Fratta
Title:	Chief Financial Officer