------------------------------
                                                           OMB APPROVAL
                                                  ------------------------------
                                                  OMB Number           3235-0362
                                                  Expires:    September 30, 1998
                                                  Estimated average burden
                                                  hours per response ....... 1.0
                                                  ------------------------------


                     U.S. SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                                     FORM 5

        ANNUAL STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES

    Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934,
       Section 17(a) of the Public Utility Holding Company Act of 1935 or
               Section 30(f) of the Investment Company Act of 1940

[_]  Check this box if no longer subject to Section 16. Form 4 or Form 5
     obligations may continue. See Instruction 1(b).

[_]  Form 3 Holdings Reported

[_]  Form 4 Transactions Reported

(Print or Type Responses)
________________________________________________________________________________
1.   Name and Address of Reporting Person*

                            OrbiMed Advisors LLC(1)
- --------------------------------------------------------------------------------
   (Last)                            (First)              (Middle)

                                767 Third Avenue
- --------------------------------------------------------------------------------
                                    (Street)

New York                                NY                 10010
- --------------------------------------------------------------------------------
   (City)                            (State)                (Zip)
________________________________________________________________________________
2.   Issuer Name and Ticker or Trading Symbol


                       Discovery Laboratories, Inc.(DSLO)
________________________________________________________________________________
3.   IRS or Social Security Number of Reporting Person (Voluntary)



________________________________________________________________________________
4.   Statement for Month/Year


                                 December, 2001
________________________________________________________________________________
5.   If Amendment, Date of Original (Month/Year)



________________________________________________________________________________
6.   Relationship of Reporting Persons to Issuer
                (Check all applicable)

     [_]  Director                             [X]  10% Owner
     [_]  Officer (give title below)           [_]  Other (specify below)
________________________________________________________________________________
7.   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 Acquired, Disposed of,
                             or Beneficially Owned
================================================================================


                                                                                                 5.             6.
                                                                 4.                              Amount of      Owner-
                                                                 Securities Acquired (A) or      Securities     ship
                                                                 Disposed of (D)                 Beneficially   Form:     7.
                                                                 (Instr. 3, 4 and 5)             Owned at End   Direct    Nature of
                                      2.            3.           -----------------------------   of Issuer's    (D) or    Indirect
1.                                    Transaction   Transaction                  (A)             Fiscal Year    Indirect  Beneficial
Title of Security                     Date          Code             Amount      or     Price    (Instr. 3      (I)       Ownership
(Instr. 3)                            (Month/Day/   (Instr. 8)                   (D)             and 4)         (Instr.4) (Instr. 4)
                                       Year)        Code
- ------------------------------------------------------------------------------------------------------------------------------------
                                                                                                  

Common Stock                          7/27/01         S               7,804       D     $3.43    3,504,265       I(2)

====================================================================================================================================

Reminder:  Report on a separate line for each class of securities beneficially
owned directly or indirectly.


                                                                          (Over)

FORM 5 (continued) Table II -- Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities) ================================================================================ 10. 9. Owner- Number ship of Form 2. Deriv- of Conver- 5. 7. ative Deriv- 11. sion Number of Title and Amount Secur- ative Nature or Derivative 6. of Underlying 8. ities Secur- of Exer- Securities Date Securities Price Bene- ity: In- cise 3. Acquired (A) Exercisable and (Instr. 3 and 4) of ficially Direct direct Price Trans- 4. or Disposed Expiration Date ---------------- Deriv- Owned (D) or Bene- 1. of action Trans- of (D) (Month/Day/Year) Amount ative at End In- ficial Title of Deriv- Date action (Instr. 3, ---------------- or Secur- of direct Owner- Derivative ative (Month/ Code 4 and 5) Date Expira- Number ity Year (I) ship Security Secur- Day/ (Instr. ------------ Exer- tion of (Instr. (Instr. (Instr. (Instr. (Instr. 3) ity Year) 8) (A) (D) cisable Date Title Shares 5) 4) 4) 4) - ------------------------------------------------------------------------------------------------------------------------------------ ==================================================================================================================================== Explanation of Responses: (1) Joint filing with OrbiMed Advisors Inc. and Samuel D. Isaly (3) of the same address. (2) OrbiMed Advisors LLC and OrbiMed Advisors Inc. have invstment management discretion over a number of collective investment funds invsting in Discovery Laboratories, Inc. stock. The reporting persons have no beneficial interest in the securities pursuant to Rule 16a-2. (3) OrbiMed Advisors Inc. is 100% owned by Samuel D. Isaly, who also has controlling interests in OrbiMed Advisors LLC. /s/Samuel D. Isaly 2/15/2002 - --------------------------------------------- ----------------------- *Signature of Reporting Person Date * 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 provided is insufficient, see Instruction 6 for procedure. Potential persons who are to respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number. Page 2 SEC 2270(7-96)