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 *

NovaQuest Co-Investment Fund XV, L.P.		 2. Date of Event Requiring Statement (MM/DD/YYYY)
9/28/2022 

 3. Issuer Name and Ticker or Trading Symbol

IDERA PHARMACEUTICALS, INC. [IDRA]
(Last)        (First)        (Middle)

4208 SIX FORKS ROAD, SUITE 920		 4. Relationship of Reporting Person(s) to Issuer (Check all applicable)

__X__ Director                          _____ 10% Owner
_____ Officer (give title below)        ___X___ Other (specify below)
/ See Remarks
(Street)

RALEIGH, NC 27609      

(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)

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
Explanation of Responses:

Remarks:
The Reporting Persons may each be deemed a director by deputization of Issuer by virtue of the fact that Ronald J. Wooten serves on the board of directors of Issuer and is also a member of the investment committee of NQ POF V GP, Ltd. ("NovaQuest GP"), which is the general partner of NovaQuest Co-Investment Fund XV, L.P. ("NovaQuest").

NovaQuest GP has the power to vote and dispose of any securities directly owned by NovaQuest. NovaQuest GP's investment committee makes voting and investment decisions regarding securities held by NovaQuest. NovaQuest GP disclaims beneficial ownership of any securities held by NovaQuest except to the extent of its pecuniary interest therein.
No securities are beneficially owned.

Reporting Owners
Reporting Owner Name / Address
Relationships
Director10% OwnerOfficerOther
NovaQuest Co-Investment Fund XV, L.P.
4208 SIX FORKS ROAD, SUITE 920
RALEIGH, NC 27609		X

See Remarks
NQ POF V GP, Ltd.
4208 SIX FORKS ROAD, SUITE 920
RALEIGH, NC 27609		X

See Remarks
Signatures
/s/ S. Halle Vakani, Attorney-in-Fact for NQ POF V GP, Ltd., General Partner of NovaQuest Co-Investment Fund XV, L.P.10/3/2022
**Signature of Reporting PersonDate

/s/ S. Halle Vakani, Attorney-in-Fact for NQ POF V GP, Ltd.10/3/2022
**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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