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

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940
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(Print or Type Responses)
1. Name and Address of Reporting Person *
  HealthCare Ventures VIII, L.P.
2. Date of Event Requiring Statement (Month/Day/Year)
08/29/2008
3. Issuer Name and Ticker or Trading Symbol
THRESHOLD PHARMACEUTICALS INC [THLDD]
(Last)
(First)
(Middle)
HEALTHCARE VENTURES LLC, 44 NASSAU STREET
4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director __X__ 10% Owner
_____ Officer (give title below) _____ Other (specify below)
5. If Amendment, Date Original Filed(Month/Day/Year)
(Street)

PRINCETON, NJ 08542
6. Individual or Joint/Group Filing(Check Applicable Line)
___ Form filed by One Reporting Person
_X_ Form filed by More than One Reporting Person
(City)
(State)
(Zip)
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 1,470,588
I
and Direct (1)

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly. SEC 1473 (7-02)
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Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security
(Instr. 4)
2. Date Exercisable and Expiration Date
(Month/Day/Year)
3. Title and Amount of Securities Underlying Derivative Security
(Instr. 4)
4. Conversion or Exercise Price of Derivative Security 5. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 5)
6. Nature of Indirect Beneficial Ownership
(Instr. 5)
Date Exercisable Expiration Date Title Amount or Number of Shares
Common Stock Warrants   (2) 08/29/2013 Common Stock 588,235 $ 2.34 I and Direct (1)

Reporting Owners

Reporting Owner Name / Address Relationships
Director 10% Owner Officer Other
HealthCare Ventures VIII, L.P.
HEALTHCARE VENTURES LLC
44 NASSAU STREET
PRINCETON, NJ 08542
    X    
HealthCare Partners VIII, L.P.
HEALTHCARE VENTURES LLC
44 NASSAU STREET
PRINCETON, NJ 08542
    X    
HealthCare Partners VIII, LLC
HEALTHCARE VENTURES LLC
44 NASSAU STREET
PRINCETON, NJ 08542
    X    
CAVANAUGH JAMES H
HEALTHCARE VENTURES LLC
44 NASSAU STREET
PRINCETON, NJ 08542
    X    
LITTLECHILD JOHN W
55 CAMBRIDGE PARKWAY
SUITE 301
CAMBRIDGE, MA 02142
    X    
WERNER HAROLD R
HEALTHCARE VENTURES LLC
44 NASSAU STREET
PRINCETON, NJ 08542
    X    
Mirabelli Christopher
55 CAMBRIDGE PARKWAY
SUITE 301
CAMBRIDGE, MA 02142
    X    
LAWLOR AUGUSTINE
55 CAMBRIDGE PARKWAY
SUITE 301
CAMBRIDGE, MA 02142
    X    

Signatures

/s/Jeffrey Steinberg, Administrative Officer HealthCare Ventures VIII, L.P. 09/08/2008
**Signature of Reporting Person Date

/s/Jeffrey Steinberg, Administrative Partner, HealthCare Partners VIII, L.P. 09/08/2008
**Signature of Reporting Person Date

/s/Jeffrey Steinberg, Administrative Officer, HeathCare Partners VIII, LLC 09/08/2008
**Signature of Reporting Person Date

/s/Jeffrey Steinberg, Attorney-in-Fact for James H. Cavanaugh 09/08/2008
**Signature of Reporting Person Date

/s/Jeffrey Steinberg, Attorney-in-Fact for John Littlechild 09/08/2008
**Signature of Reporting Person Date

/s/Jeffrey Steinberg, Attorney-in-Fact for Harold Werner 09/08/2008
**Signature of Reporting Person Date

/s/Jeffrey Steinberg, Attorney-in-Fact for Christopher Mirabelli 09/08/2008
**Signature of Reporting Person Date

/s/Jeffrey Steinberg, Attorney-in-Fact for Augustine Lawlor 09/08/2008
**Signature of Reporting Person Date

Explanation of Responses:

* 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).
(1) These securities are owned by HealthCare Ventures VIII, L.P. ("HCVVIII"). These securities are indirectly owned by HealthCare Partners VIII, L.P. ("HCPVIII"), the General Partner of HCVVIII, HealthCare Partners VIII, LLC (the "LLC"), the General Partner of HCPVIII, and each of James Cavanaugh, Harold Werner, John Littlechild, Christopher Mirabelli and Augustine Lawlor, the Managing Directors of the LLC. Drs. Cavanaugh and Mirabelli and Messrs. Werner, Littlechild and Lawlor disclaim beneficial ownership of those securities in which they do not have a pecuniary interest and this report shall not be deemed an admission that they are the beneficial owners of these securities for purposes of Section 16, except to the extent of their pecuniary interest therein.
(2) Immediately exercisable.

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