Document:

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                                                                   EXHIBIT 10.20

                                 AMENDMENT NO. 1
                                     TO THE
                       RESTRICTED STOCK PURCHASE AGREEMENT

         This Amendment No. 1 (this "Amendment") to the Restricted Stock
Purchase Agreement, dated as of August 1, 2002 (the "Restricted Stock Purchase
Agreement"), is entered into effective as of April 1, 2004, by and between
Barrier Therapeutics, Inc., a Delaware corporation (the "Company"), and Anne M.
VanLent (the "Purchaser"). Capitalized terms used herein and not otherwise
defined shall have the meanings given to them in the Restricted Stock Purchase
Agreement.

                                    RECITALS:

         WHEREAS, the Company agreed to sell and the Purchaser agreed to
purchase shares of the Company's common stock, par value of $.0001 per share
(the "Common Stock"), pursuant to that certain Restricted Stock Purchase
Agreement; and

         WHEREAS, contemporaneously with the execution of this Amendment, the
Company and the Purchaser have entered into a new employment agreement (the
"Employment Agreement"); and

         WHEREAS, the Company's Compensation Committee has determined to make
certain amendments to the Restricted Stock Purchase Agreement and the Common
Stock issued thereunder (the "Shares") to be consistent with the terms of the
Employment Agreement; and

         WHEREAS, this Amendment shall be effective upon execution by the
Company and the Purchaser.

         NOW THEREFORE, in consideration of the mutual covenants herein, and
intending to be legally bound hereby, the parties agree as follows:

1.       Section 4 of the Restricted Stock Purchase Agreement is hereby amended
in its entirety to read as follows:

         "4.      Release of Shares From Repurchase Option. The Shares shall be
released from the Repurchase Option as follows:

<TABLE>
<CAPTION>
                                                              PERCENTAGE OF SHARES FOR WHICH THE
                                                                 SHARES ARE RELEASED FROM THE
                            DATE                                      REPURCHASE OPTION
                            ----                                      -----------------
<S>                                                           <C>
                       August 1, 2002                                       16.66%
                      September 1, 2002                                      8.33%
                      September 1, 2003                                     18.75%
Monthly beginning on October 31, 2003 through April 30, 2006               1.8145%
</TABLE>

                  In the event that the Purchaser is terminated by the Company
         without Cause (as defined in the Employment Agreement) or the Purchaser
         terminates employment with the Company for Good Reason (as defined in
         the Employment Agreement), the Shares shall be released from the

<PAGE>

         Repurchase Option on the Termination Date for the period of employment
         plus the Purchaser's Severance Period (as defined in the Employment
         Agreement), and all other Shares may be repurchased by the Company
         pursuant to Section 3 hereof.

                  In the event of the Purchaser's death or Disability (as
         defined in the Employment Agreement), all Shares shall be released from
         the Repurchase Option.

                  In the event of a Change of Control (as defined in the
         Employment Agreement), all Shares shall be released from the Repurchase
         Option.

                  The release of shares from the Repurchase Option is
         cumulative, but shall not exceed 100%. If the foregoing schedule would
         produce fractional Shares, the number of Shares for which the
         Repurchase Option is released shall be rounded down to the nearest
         whole Share."

2.       Except as specifically amended herein, all terms and conditions
contained in the Restricted Stock Purchase Agreement shall remain in full force
and effect. To the extent there is any conflict between the Restricted Stock
Purchase Agreement and this Amendment, the terms of this Amendment shall
prevail.

3.       This Amendment shall be governed by and construed under the laws of the
State of New Jersey as applied to agreements among New Jersey residents entered
into and to be performed entirely within New Jersey.

4.       This Amendment may be executed in any number of counterparts, each of
which shall be an original, but both of which together shall constitute one
instrument.

                                      - 2 -
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         IN WITNESS WHEREOF, the undersigned parties have executed this
Amendment to the Restricted Stock Purchase Agreement as of the date set forth in
the first paragraph hereof.

                                           BARRIER THERAPEUTICS, INC.

                                           By: _________________________________
                                           Name:
                                           Title:

                                           PURCHASER:

                                           _____________________________________
                                           Anne M. VanLent

                        SIGNATURE PAGE TO AMENDMENT NO. 1
                   TO THE RESTRICTED STOCK PURCHASE AGREEMENTExhibit 4.2  

OSHKOSH TRUCK
CORPORATION
(a Wisconsin
corporation)  

2004 Incentive Stock
and Awards Plan
Stock Option Award 

[Participant]:  

[Participant Address]:  

Oshkosh Truck Corporation (the “Company”)
and you hereby agree as follows:  

You have been granted Options to
purchase shares of Common Stock of the Company under the Oshkosh Truck Corporation 2004
Incentive Stock and Awards Plan (the “Plan”) with the following terms and
conditions:  

Grant Date: 

Type of Options: 

Number of Shares: 

Exercise Price per Share: 

Expiration Date:  Ten years and one
month, unless terminated earlier as described in the Plan.  

Vesting Schedule: 

	Number of Shares
	Vesting Date

	One-third of Option Shares	1st anniversary of Grant Date
	One-third of Option Shares	2nd anniversary of Grant Date
	One-third of Option Shares	3rd anniversary of Grant Date

Your Options will become fully vested
if you terminate employment or service as a result of death, Disability or Retirement. 

Manner of Exercise: You may
pay the exercise price and any attributable tax for an Option in one or more of the
following forms: (i) a check payable to the order of the Company for the purchase price of
the shares being purchased; (ii) delivery of shares of Common Stock (including by
attestation) that you have owned for at least six (6) months and that have a Fair Market
Value (determined on the date of delivery) equal to the exercise price of the shares being
purchased and any attributable tax; (iii) delivery (including by facsimile) to the Company
of an executed irrevocable option exercise form together with irrevocable instructions, in
a form acceptable to the Company, to a broker-dealer to sell a sufficient portion of the
shares of Common Stock issuable upon exercise of this Option and deliver the sale proceeds
directly to the Company to pay for the exercise price and any attributable tax, or (iv) by
any combination of (i), (ii) and (iii). 

This Award is granted under and
governed by the terms and conditions of the Plan. Additional provisions regarding your
Options and definitions of capitalized terms used and not defined in this Award Agreement
can be found in the Plan a copy of which is attached hereto. 

IN WITNESS WHEREOF, the Company has
caused this Award Agreement to be duly executed, and you have executed this Award
Agreement, all as of the day and year first above written. 

		OSHKOSH TRUCK CORPORATION

		By:   	  

			Robert G. Bohn

Chairman, President and Chief Executive Officer

		

Accepted:

		By:   	  

			Participant Name [Typed]

2Exhibit 4.3  

OSHKOSH TRUCK
CORPORATION
(a Wisconsin corporation)  

2004 Incentive Stock
and Awards Plan
Non-Employee
Director Stock Option Award  

[Participant]:  

[Participant Address]:  

Oshkosh Truck Corporation (the “Company”)
and you hereby agree as follows:  

You have been granted Options to
purchase shares of Common Stock of the Company under the Oshkosh Truck Corporation 2004
Incentive Stock and Awards Plan (the “Plan”) with the following terms and
conditions:  

Grant Date: 

Type of Options: 

Number of Shares: 

Exercise Price per Share: 

Expiration Date:  The earlier of (a)
10 years and one month after the Grant Date, or (b) 12 months after you cease for any
reason to be a member of the Board.  

Vesting Schedule: 

	Number of Shares
	Vesting Date

	One-third of Option Shares	1st anniversary of Grant Date
	One-third of Option Shares	2nd anniversary of Grant Date
	One-third of Option Shares	3rd anniversary of Grant Date

Your Options will become fully vested
if you cease to be a member of the Board as a result of death, Disability or Retirement.
If you cease to be a member of the Board (within the meaning of Plan Section 16(b)) for
any reason other than death, Disability or Retirement prior to the date the Options are
fully vested, you will forfeit the Options that have not vested on the date you cease to
be a member of the Board. 

Manner of Exercise: You may
pay the exercise price and any attributable tax for an Option in one or more of the
following forms: (i) a check payable to the order of the Company for the purchase price of
the shares being purchased; (ii) delivery of shares of Common Stock (including by
attestation) that you have owned for at least six (6) months and that have a Fair Market
Value (determined on the date of delivery) equal to the exercise price of the shares being
purchased and any attributable tax; (iii) delivery (including by facsimile) to the Company
of an executed irrevocable option exercise form together with irrevocable instructions, in
a form acceptable to the Company, to a broker-dealer to sell a sufficient portion of the
shares of Common Stock issuable upon exercise of this Option and deliver the sale proceeds
directly to the Company to pay for the exercise price and any attributable tax, or (iv) by
any combination of (i), (ii) and (iii). 

This Award is granted under and
governed by the terms and conditions of the Plan. Additional provisions regarding your
Options and definitions of capitalized terms used and not defined in this Award Agreement
can be found in the Plan a copy of which is attached hereto. 

IN WITNESS WHEREOF, the Company has
caused this Award Agreement to be duly executed, and you have executed this Award
Agreement, all as of the day and year first above written. 

		OSHKOSH TRUCK CORPORATION

		By:   	  

			Robert G. Bohn

Chairman, President and Chief Executive Officer

		

Accepted:

		By:   	  

			Participant Name-TYPED

2

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