FORM 3
        
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

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Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940
                      

1. Name and Address of Reporting Person *

BVF PARTNERS L P/IL		 2. Date of Event Requiring Statement (MM/DD/YYYY)
7/11/2022 

 3. Issuer Name and Ticker or Trading Symbol

ESSA Pharma Inc. [EPIX]
(Last)        (First)        (Middle)

44 MONTGOMERY STREET, 40TH FL		 4. Relationship of Reporting Person(s) to Issuer (Check all applicable)

_____ Director                          ___X___ 10% Owner
_____ Officer (give title below)        _____ Other (specify below)
(Street)

SAN FRANCISCO, CA 94104      

(City)              (State)              (Zip)
5. If Amendment, Date Original Filed(MM/DD/YYYY)
 

6. Individual or Joint/Group Filing(Check Applicable Line)

___ Form filed by One Reporting Person
_X_ Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Beneficially Owned
1.Title of Security
(Instr. 4)		2. Amount of Securities Beneficially Owned
(Instr. 4)		3. Ownership Form: Direct (D) or Indirect (I)
(Instr. 5)		4. Nature of Indirect Beneficial Ownership
(Instr. 5)
Common Stock (1)4712590 D (2) 
Common Stock (1)3491779 D (3) 
Common Stock (1)357472 D (4) 

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivate Security
(Instr. 4)		2. Date Exercisable and Expiration Date
(MM/DD/YYYY)		3. Title and Amount of Securities Underlying Derivative Security
(Instr. 4)		4. Conversion or Exercise Price of Derivative Security5. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 5)		6. Nature of Indirect Beneficial Ownership
(Instr. 5)
Date ExercisableExpiration DateTitleAmount or Number of Shares
Pre-funded Warrants (1) (5)8/27/2024 Common Stock 1481634 $0.0001 (5)D (2) 
Pre-funded Warrants (1) (5)8/27/2024 Common Stock 1235030 $0.0001 (5)D (3) 
Pre-funded Warrants (1) (5)8/27/2024 Common Stock 203336 $0.0001 (5)D (4) 
Explanation of Responses:
(1) This Form 3 is filed jointly by Biotechnology Value Fund, L.P. ("BVF"), Biotechnology Value Fund II, L.P. ("BVF2"), Biotechnology Value Trading Fund OS LP ("Trading Fund OS"), BVF Partners OS Ltd. ("Partners OS"), BVF I GP LLC ("BVF GP"), BVF II GP LLC ("BVF2 GP"), BVF GP Holdings LLC ("BVF GPH"), BVF Partners L.P. ("Partners"), BVF Inc. and Mark N. Lampert (collectively, the "Reporting Persons"). Each of the Reporting Persons is a member of a Section 13(d) group. Each of the Reporting Persons disclaims beneficial ownership of the securities reported herein except to the extent of his or its pecuniary interest therein.
(2) Securities owned directly by BVF. As the general partner of BVF, BVF GP may be deemed to beneficially own the securities owned directly by BVF. As the sole member of BVF GP, BVF GPH may be deemed to beneficially own securities owned directly by BVF. As the investment manager of BVF, Partners may be deemed to beneficially own the securities owned directly by BVF. As the investment adviser and general partner of Partners, BVF Inc. may be deemed to beneficially own the securities owned directly by BVF. As a director and officer of BVF Inc., Mr. Lampert may be deemed to beneficially own the securities owned directly by BVF.
(3) Securities owned directly by BVF2. As the general partner of BVF2, BVF2 GP may be deemed to beneficially own the securities owned directly by BVF2. As the sole member of BVF2 GP, BVF GPH may be deemed to beneficially own securities owned directly by BVF2. As the investment manager of BVF2, Partners may be deemed to beneficially own the securities owned directly by BVF2. As the investment adviser and general partner of Partners, BVF Inc. may be deemed to beneficially own the securities owned directly by BVF2. As a director and officer of BVF Inc., Mr. Lampert may be deemed to beneficially own the securities owned directly by BVF2.
(4) Securities owned directly by Trading Fund OS. As the general partner of Trading Fund OS, Partners OS may be deemed to beneficially own the securities owned directly by Trading Fund OS. As the investment manager of Trading Fund OS and the sole member of Partners OS, Partners may be deemed to beneficially own the securities owned directly by Trading Fund OS. As the investment adviser and general partner of Partners, BVF Inc. may be deemed to beneficially own the securities owned directly by Trading Fund OS. As a director and officer of BVF Inc., Mr. Lampert may be deemed to beneficially own the securities owned directly by Trading Fund OS.
(5) The Issuer previously issued pre-funded warrants to the Reporting Persons which are exercisable into shares of common stock at an exercise price equal to $0.0001 per share, which have an exercise period of 60 months (August 27, 2024) from the date of issuance. Each pre-funded warrant is exercisable into 1 share of common stock. The pre-funded warrants cannot be exercised by the Reporting Persons if, after giving effect thereto, the Reporting Persons would beneficially own more than 9.99% of the Issuer's outstanding shares of common stock.

Reporting Owners
Reporting Owner Name / Address
Relationships
Director10% OwnerOfficerOther
BVF PARTNERS L P/IL
44 MONTGOMERY STREET
40TH FL
SAN FRANCISCO, CA 94104
X

BIOTECHNOLOGY VALUE FUND L P
44 MONTGOMERY STREET
40TH FL
SAN FRANCISCO, CA 94104
X

BVF I GP LLC
44 MONTGOMERY ST., 40TH FLOOR
SAN FRANCISCO, CA 94104
X

BIOTECHNOLOGY VALUE FUND II LP
44 MONTGOMERY STREET
40TH FL
SAN FRANCISCO, CA 94104


See Explanation of Responses
BVF II GP LLC
44 MONTGOMERY ST., 40TH FLOOR
SAN FRANCISCO, CA 94104


See Explanation of Responses
Biotechnology Value Trading Fund OS LP
P.O. BOX 309 UGLAND HOUSE
GRAND CAYMAN, E9 KY1-1104


See Explanation of Responses
BVF Partners OS Ltd.
P.O. BOX 309 UGLAND HOUSE
GRAND CAYMAN, E9 KY1-1104


See Explanation of Responses
BVF GP HOLDINGS LLC
44 MONTGOMERY ST., 40TH FLOOR
SAN FRANCISCO, CA 94104
X

BVF INC/IL
44 MONTGOMERY STREET
40TH FL
SAN FRANCISCO, CA 94104
X

LAMPERT MARK N
44 MONTGOMERY STREET
40TH FL
SAN FRANCISCO, CA 94104
X
Signatures
BVF Partners L.P., By: BVF Inc., its general partner, By: /s/ Mark N. Lampert, President7/21/2022
**Signature of Reporting PersonDate

Biotechnology Value Fund, L.P., By: BVF I GP LLC, its general partner, By: /s/ Mark N. Lampert, Chief Executive Officer7/21/2022
**Signature of Reporting PersonDate

BVF I GP LLC, By: /s/ Mark N. Lampert, Chief Executive Officer7/21/2022
**Signature of Reporting PersonDate

Biotechnology Value Fund II, L.P., By: BVF II GP LLC, its general partner, By: /s/ Mark N. Lampert, Chief Executive Officer7/21/2022
**Signature of Reporting PersonDate

BVF II GP LLC, By: /s/ Mark N. Lampert, Chief Executive Officer7/21/2022
**Signature of Reporting PersonDate

BVF Partners OS Ltd., By: BVF Partners L.P., its sole member, By: BVF Inc., its general partner, By: /s/ Mark N. Lampert, President7/21/2022
**Signature of Reporting PersonDate

Biotechnology Value Trading Fund OS LP, By: BVF Partners L.P., its investment manager, BVF Inc., its general partner, By: /s/ Mark N. Lampert, President7/21/2022
**Signature of Reporting PersonDate

BVF GP Holdings LLC, By: /s/ Mark N. Lampert, Chief Executive Officer7/21/2022
**Signature of Reporting PersonDate

BVF Inc., By: /s/ Mark N. Lampert, President7/21/2022
**Signature of Reporting PersonDate

/s/ Mark N. Lampert7/21/2022
**Signature of Reporting PersonDate
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
*If the form is filed by more than one reporting person, see Instruction 5(b)(v).
**Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note:File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB control number.
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