Document:

Personal and Confidential
================================================================================
                                 INTERNAL MEMO
================================================================================

To:   Benjamin Corn                  From:  Martin Burg
Date: August 15, 2002
Subject: Salary Adjustments

Memo:

I agree to participate in the program of Company-wide salary cuts. I understand
and agree to the reduction of my gross monthly salary by 10%. Notwithstanding
the foregoing, I understand that any contractual severance payments due me in
the event of my termination without cause shall be based upon my pre-cut salary.

Employee name:  Benjamin Corn

Employee signature: /s/ Benjamin Corn

Dear Employee,

Keryx is very appreciative of your agreement to take a reduction in monthly
salary in light of the tough financial circumstances in the economy at present.
We hope you understand the need to cut back at present in order to help grow a
strong, healthy and efficient Company in the future, and we look forward to
growing this Company With your help.

Yours sincerely,

/s/ Ira Weinstein
-------------------------
Ira Weinstein
COO
Keryx Biopharmaceuticals
Date: August 15, 2002Personal and Confidential
================================================================================
                                 INTERNAL MEMO
================================================================================

To:   Morris Laster                  From:  Martin Burg
Date: August 15, 2002
Subject: Salary Adjustments

Memo:

I agree to participate in the program of Company-wide salary cuts. I understand
and agree to the reduction of my gross monthly salary by 10%. Notwithstanding
the foregoing, I understand that any contractual severance payments due me in
the event of my termination without cause shall be based upon my pre-cut salary.

Employee name:  Morris Laster

Employee signature: /s/ Morris Laster

Dear Employee,

Keryx is very appreciative of your agreement to take a reduction in monthly
salary in light of the tough financial circumstances in the economy at present.
We hope you understand the need to cut back at present in order to help grow a
strong, healthy and efficient Company in the future, and we look forward to
growing this Company With your help.

Yours sincerely,

/s/ Ira Weinstein
-------------------------
Ira Weinstein
COO
Keryx Biopharmaceuticals
Date: August 15, 2002Personal and Confidential
================================================================================
                                 INTERNAL MEMO
================================================================================

To:   Ira Weinstein                  From:  Martin Burg
Date: August 15, 2002
Subject: Salary Adjustments

Memo:

I agree to participate in the program of Company-wide salary cuts. I understand
and agree to the reduction of my gross monthly salary by 10%. Notwithstanding
the foregoing, I understand that any contractual severance payments due me in
the event of my termination without cause shall be based upon my pre-cut salary.

Employee name:  Ira Weinstein

Employee signature: /s/ Ira Weinstein

Dear Employee,

Keryx is very appreciative of your agreement to take a reduction in monthly
salary in light of the tough financial circumstances in the economy at present.
We hope you understand the need to cut back at present in order to help grow a
strong, healthy and efficient Company in the future, and we look forward to
growing this Company With your help.

Yours sincerely,

/s/ Benjamin Corn
-------------------------
Benjamin Corn, M.D.
CEO
Keryx Biopharmaceuticals
Date: August 15, 2002Personal and Confidential
================================================================================
                                 INTERNAL MEMO
================================================================================

To:   Bob Trachtenberg               From:  Martin Burg
Date: August 15, 2002
Subject: Salary Adjustments

Memo:

I agree to participate in the program of Company-wide salary cuts. I understand
and agree to the reduction of my gross monthly salary by 10%. Notwithstanding
the foregoing, I understand that any contractual severance payments due me in
the event of my termination without cause shall be based upon my pre-cut salary.

Employee name:  Bob Trachtenberg

Employee signature: /s/ Bob Trachtenberg

Dear Employee,

Keryx is very appreciative of your agreement to take a reduction in monthly
salary in light of the tough financial circumstances in the economy at present.
We hope you understand the need to cut back at present in order to help grow a
strong, healthy and efficient Company in the future, and we look forward to
growing this Company With your help.

Yours sincerely,

/s/ Ira Weinstein
-------------------------
Ira Weinstein
COO
Keryx Biopharmaceuticals
Date: August 15, 2002Personal and Confidential
================================================================================
                                 INTERNAL MEMO
================================================================================

To:   Thomas Humphries                  From:  Martin Burg
Date: August 15, 2002
Subject: Salary Adjustments

Memo:

I agree to participate in the program of Company-wide salary cuts. I understand
and agree to the reduction of my gross monthly salary by 10%. Notwithstanding
the foregoing, I understand that any contractual severance payments due me in
the event of my termination without cause shall be based upon my pre-cut salary.

Employee name:  Thomas Humphries, M.D

Employee signature: /s/ Thomas Humphries

Dear Employee,

Keryx is very appreciative of your agreement to take a reduction in monthly
salary in light of the tough financial circumstances in the economy at present.
We hope you understand the need to cut back at present in order to help grow a
strong, healthy and efficient Company in the future, and we look forward to
growing this Company With your help.

Yours sincerely,

/s/ Ira Weinstein
-------------------------
Ira Weinstein
COO
Keryx Biopharmaceuticals
Date: August 15, 2002Personal and Confidential
================================================================================
                                 INTERNAL MEMO
================================================================================

To:   Barry Cohen                  From:  Martin Burg
Date: August 15, 2002
Subject: Salary Adjustments

Memo:

I agree to participate in the program of Company-wide salary cuts. I understand
and agree to the reduction of my gross monthly salary by 10%. Notwithstanding
the foregoing, I understand that any contractual severance payments due me in
the event of my termination without cause shall be based upon my pre-cut salary.

Employee name:  Barry Cohen

Employee signature: /s/ Barry Cohen

Dear Employee,

Keryx is very appreciative of your agreement to take a reduction in monthly
salary in light of the tough financial circumstances in the economy at present.
We hope you understand the need to cut back at present in order to help grow a
strong, healthy and efficient Company in the future, and we look forward to
growing this Company With your help.

Yours sincerely,

/s/ Ira Weinstein
-------------------------
Ira Weinstein
COO
Keryx Biopharmaceuticals
Date: August 15, 2002Exhibit 10.8

                                 August 15, 2002

Mr. Robert Gallahue
544 Sharpner's Pond Road
North Andover, MA 01845

Dear Mr. Gallahue:

As we discussed and agreed, your employment with Keryx Biopharmaceuticals, Inc.
(the "Company") will terminate on August 15, 2002. The Company will provide you
with the severance benefits described in the "Description of Severance Benefits"
attached to this letter agreement as Attachment A if you sign and return this
letter agreement to Bob Trachtenberg by October 2, 2002 and it becomes binding.
These benefits are greater than those you would have received pursuant to
paragraph 8 of your Employment Agreement. By signing and returning this letter
agreement, you will be agreeing to the terms and conditions set forth in the
numbered paragraphs below, including the release of claims set forth in
paragraph 3. Therefore, you are advised to consult with your attorney before
signing this letter agreement and you may take up to forty-five (45) days to do
so. If you sign this letter agreement, you may change your mind and revoke your
agreement during the seven (7) day period after you have signed it by notifying
Bob Trachtenberg of such revocation. If you do not so revoke, this letter
agreement will become a binding agreement between you and the Company upon the
expiration of the seven (7) day revocation period.

If you choose not to sign this letter agreement by October 2, 2002, you shall
not receive the severance benefits described in Attachment A. You will, however,
receive payment for any accrued wages and unused vacation time accrued through
the Termination Date (as defined below). Also, regardless of signing this letter
agreement, you may elect to continue receiving group medical insurance pursuant
to the federal "COBRA" law, 29 U.S.C. ss. 1161 et seq. All premium costs shall
be paid by you on a monthly basis for as long as, and to the extent that, you
remain eligible for COBRA continuation. You should consult the COBRA materials
to be provided by the Company for details regarding these benefits. All other
benefits, including life insurance and long-term disability, will cease upon
your termination date.

The following numbered paragraphs set forth the terms and conditions which will
apply if you timely sign and return this letter agreement and do not revoke it
within the seven (7) day period:

1.    Termination Date - Your effective date of termination from the Company is
      August 15, 2002 (the "Termination Date").

2.    Description of Severance Benefits - The severance benefits paid to you if
      you timely sign and return this letter agreement and it becomes binding
      are described in the "Description of Severance Benefits" attached as
      Attachment A (the "severance benefits").

<PAGE>

3.    Release - In consideration of the payment of the severance benefits, which
      you acknowledge you would not otherwise be entitled to receive, you hereby
      fully, forever, irrevocably and unconditionally release, remise and
      discharge TriNet Employer Group, Inc. and the Company, including all of
      its officers, directors, stockholders, corporate affiliates, subsidiaries,
      and parent companies and their respective agents and employees from any
      and all claims, charges, complaints, demands, actions, causes of action,
      suits, rights, debts, sums of money, costs, accounts, reckonings,
      covenants, contracts, agreements, promises, doings, omissions, damages,
      executions, obligations, liabilities, and expenses (including attorneys'
      fees and costs), of every kind and nature which you ever had or now have
      against TriNet Employer Group, Inc. and the Company, including all of its
      officers, directors, stockholders, corporate affiliates, subsidiaries and
      parent companies and their respective agents and employees arising out of
      your employment with or separation from the Company including, but not
      limited to, all employment discrimination claims under Title VII of the
      Civil Rights Act of 1964, 42 U.S.C. ss.2000e et seq., the Age
      Discrimination in Employment Act, 29 U.S.C., ss.621 et seq., the Americans
      With Disabilities Act of 1990, 42 U.S.C., ss.12101 et seq., the Family and
      Medical Leave Act, 29 U.S.C. ss. 2601 et seq., and the Worker Adjustment
      and Retraining Notification Act ("WARN"), 29 U.S.C. ss.2101 et seq., the
      Rehabilitation Act of 1973, 29 U.S.C. ss.701 et seq., all as amended, and
      all claims arising out of the Fair Credit Reporting Act, 15 U.S.C. ss.1681
      et seq., the Employee Retirement Income Security Act of 1974 ("ERISA"), 29
      U.S.C. ss.1001 et seq., the Massachusetts Fair Employment Practices Act,
      M.G.L. c.151B, ss.1 et seq., the Massachusetts Civil Rights Act, M.G.L.
      c.12ss. ss.11H and 11I, the Massachusetts Equal Rights Act, M.G.L. c.93
      ss.102 and M.G.L. c.214, ss.1C, the Massachusetts Labor and Industries
      Act, M.G.L. c. 149, ss.1 et seq., the Massachusetts Privacy Act, M.G.L.
      c.214, ss.1B, and the Massachusetts Maternity Leave Act , M.G.L. c. 149,
      ss.105(d), all as amended, all common law claims including, but not
      limited to, actions in tort, defamation and breach of contract (including
      all claims pursuant to your Employment Agreement); all claims to any
      non-vested ownership interest in the Company, contractual or otherwise,
      including but not limited to claims to stock or stock options; and any
      claim or damage arising out of your employment with or separation from the
      Company (including a claim for retaliation) under any common law theory or
      any federal, state or local statute or ordinance not expressly referenced
      above; provided, however, nothing in this letter agreement shall prevent
      you from filing, cooperating with, or participating in a discrimination
      proceeding before a state or federal Fair Employment Practices Agency or
      court (except that you acknowledge that you may not recover any monetary
      benefit in such proceeding unless this letter agreement is held invalid by
      such an agency or court).

4.    Non-Disclosure and Non-Competition - You acknowledge your obligation to
      keep confidential all non-public information concerning the Company which
      you acquired during the course of your employment with the Company, as
      stated more fully in the Proprietary Information and Inventions Agreement
      which remains in full force and effect. You further acknowledge and
      reaffirm your obligations under the non-competition provision (paragraph
      6) of your Employment Agreement which also remains in full force and
      effect.

                                      -2-
<PAGE>

5.    Return of Company Property - You agree to return within seven (7) days of
      the execution of this letter agreement all Company property including, but
      not limited to, keys, files, office equipment, passwords, passcodes,
      computer software (and all copies thereof), and computer hardware, which
      is in your possession or control. You further agree to leave intact all
      electronic Company documents, including those which you developed during
      your employment. Notwithstanding the foregoing, you shall be entitled to
      keep the office equipment and computer hardware set forth in Attachment B
      until December 31, 2002, at which time you shall return all such equipment
      to the Company unless otherwise agreed.

6.    Non-Disparagement - You understand and agree that as a condition for
      payment to you of the consideration herein described, you shall not make
      any false, disparaging or derogatory statements to any media outlet,
      industry group, financial institution or current or former employee,
      consultant, client or customer of the Company regarding the Company, its
      subsidiaries and their respective directors, officers, employees, agents
      or representatives or about the Company's business affairs and financial
      condition.

7.    Amendment - This letter agreement shall be binding upon the parties and
      may not be modified in any manner, except by an instrument in writing of
      concurrent or subsequent date signed by duly authorized representatives of
      the parties hereto. This letter agreement is binding upon and shall inure
      to the benefit of the parties and their respective agents, assigns, heirs,
      executors, successors and administrators.

8.    Waiver of Rights - No delay or omission by the Company in exercising any
      right under this letter agreement shall operate as a waiver of that or any
      other right. A waiver or consent given by the Company on any one occasion
      shall be effective only in that instance and shall not be construed as a
      bar or waiver of any right on any other occasion.

9.    Validity - Should any provision of this letter agreement be declared or be
      determined by any court of competent jurisdiction to be illegal or
      invalid, the validity of the remaining parts, terms or provisions shall
      not be affected thereby and said illegal or invalid part, term or
      provision shall be deemed not to be a part of this letter agreement.

10.   Confidentiality - To the extent permitted by law, you understand and agree
      that as a condition for payment to you of the severance benefits herein
      described, the terms and contents of this letter agreement, and the
      contents of the negotiations and discussions resulting in this letter
      agreement, shall be maintained as confidential by you and your agents and
      representatives and shall not be disclosed to any third party except to
      the extent required by federal or state law or as otherwise agreed to in
      writing by the Company.

11.   Nature of Agreement - You understand and agree that this letter agreement
      is a severance agreement and does not constitute an admission of liability
      or wrongdoing on the part of the Company.

12.   Eligibility for Severance Program - Attached to this letter agreement as
      Attachment C is a description of (i) any class, unit or group of
      individuals covered by the program of

                                      -3-
<PAGE>

      severance benefits which the Company has offered to you, and any
      applicable time limits regarding such severance benefit program; and (ii)
      the job title and ages of all individuals eligible or selected for such
      severance benefit program, and the ages of all individuals in the same job
      classification or organizational unit who are not eligible or who were not
      selected for such severance benefit program.

13.   Acknowledgments - You acknowledge that you have been given at least
      forty-five (45) days to consider this letter agreement, including
      Attachments A and B. You are advised to consult with an attorney of your
      own choosing prior to signing this letter agreement. You understand that
      you may revoke this letter agreement for a period of seven (7) days after
      you sign this letter agreement, and the letter agreement shall not be
      effective or enforceable until the expiration of this seven (7) day
      revocation period. You understand and agree that by entering into this
      letter agreement you are waiving any and all rights or claims you might
      have under The Age Discrimination in Employment Act, as amended by The
      Older Workers Benefit Protection Act, and that you have received
      consideration beyond that to which you were previously entitled.

14.   Voluntary Assent - You affirm that no other promises or agreements of any
      kind have been made to or with you by any person or entity whatsoever to
      cause you to sign this letter agreement, and that you fully understand the
      meaning and intent of this letter agreement. You state and represent that
      you have had an opportunity to fully discuss and review the terms of this
      letter agreement, including Attachments A and B, with an attorney. You
      further state and represent that you have carefully read this letter
      agreement, including Attachments A and B, understand the contents herein,
      freely and voluntarily assent to all of the terms and conditions hereof,
      and sign your name of your own free act.

15.   Applicable Law - This letter agreement shall be interpreted and construed
      by the laws of the Commonwealth of Massachusetts, without regard to
      conflict of laws provisions. You hereby irrevocably submit to and
      acknowledge and recognize the jurisdiction of the courts of the
      Commonwealth of Massachusetts, or if appropriate, a federal court located
      in Massachusetts (which courts, for purposes of this letter agreement, are
      the only courts of competent jurisdiction), over any suit, action or other
      proceeding arising out of, under or in connection with this letter
      agreement or the subject matter hereof.

16.   Entire Agreement - This letter agreement, including Attachments A, B and
      C, contains and constitutes the entire understanding and agreement between
      the parties hereto with respect to your severance benefits and the
      settlement of claims against the Company and cancels all previous oral and
      written negotiations, agreements, commitments, writings in connection
      therewith. Nothing in this paragraph, however, shall modify, cancel or
      supersede your obligations set forth in paragraph 4.

If you have any questions about the matters covered in this letter agreement,
please call me.

                                   Very truly yours,

                                   By: /s/ Benjamin Corn
                                      -----------------------------------
                                      Name: Benjamin Corn, M.D.
                                      Title: Chief Executive Officer & President

                                      -4-
<PAGE>

I hereby agree to the terms and conditions set forth above and in Attachments A
and B. I have been given at least forty-five (45) days to consider this letter
agreement (including Attachments A and B) and I have chosen to execute this on
the date below. I intend that this letter agreement will become a binding
agreement between me and the Company if I do not revoke my acceptance in seven
(7) days.

/s/ Robert Gallahue                        Date August 15, 2002
-------------------------------                 ---------------
Employee Name: Robert Gallahue

To be returned by October 2, 2002.

                                      -5-
<PAGE>

                                  ATTACHMENT A

                        DESCRIPTION OF SEVERANCE BENEFITS

The Company will provide you with four and a half months of base salary, less
all applicable state and federal taxes ("the "Severance Pay"). This Severance
Pay will be paid in a lump sum no earlier than the eighth (8th) day but not
later than the twentieth (20th ) day after this letter agreement becomes binding
on you.

All of your outstanding options to purchase common stock of the Company which
have not vested as of the Termination Date shall become fully vested and
exercisable. Your right to exercise your outstanding options shall terminate at
5:00 p.m., Boston time, on the second anniversary of the Termination Date.
Notwithstanding the foregoing, if you, during the two year period following the
Termination Date, violate the non-competition, non-disparagement or
confidentiality provisions of this letter agreement, any employment contract,
confidentiality and nondisclosure agreement or other agreement between you and
the Company, the right to exercise your options shall terminate immediately upon
such violation. Except as otherwise provided above, you may exercise your
options only in accordance with, and your options shall continue to be governed
by, the provisions of the applicable stock option plan, option agreement and the
Company's Procedures And Guidelines Governing Insider Trading And Tipping.

Provided you timely elect to receive group medical insurance pursuant to the
federal "COBRA" law, 29 U.S.C. ss. 1161 et seq., the Company will reimburse you
for the share of the premium for such coverage that is paid by the Company for
active and similarly-situated employees who receive the same type of coverage
for a period of four months or until you obtain other coverage whichever period
is shorter. You should consult the COBRA materials to be provided by the Company
for details regarding these benefits.

In addition, the Company will reimburse you for documented expenses incurred
through December 31, 2002 for continuing professional education courses
(estimated $750), your Certified Public Accounting licensure fee (estimated
$156) and expenses for your home office (estimated $800). The estimated total of
the above is to be available as a pool allowing reasonable and documented
expenses to be applied against this pool. The Company also will transfer your
cell phone to your name. The Company will also reimburse you for monies lost
($187.50 Health and $231.24 Dependent) due to termination of the deferred salary
benefit plans (SEC 125 Plans).

In addition, the Company will pay to you $6,577.59, which amount includes (i) a
reimbursement for taxes paid by you as a result of health insurance premiums
paid by your former employer being includable in your taxable income for the tax
years 2000 and 2001, and (ii) a reimbursement for taxes payable by you as a
result of the reimbursement described in (i) above.

                                      -6-
<PAGE>

                                  ATTACHMENT B

     OFFICE EQUIPMENT AND COMPUTER HARDWARE ON LOAN UNTIL DECEMBER 31, 2002

1)    OfficeJet G85 Printer/Fax/Copier

2)    Computer Hard drive

                                      -7-

<PAGE>

                                  ATTACHMENT C

                      OLDER WORKERS BENEFIT PROTECTION ACT
                               NOTICE TO EMPLOYEES

As a result of the Company's decision to eliminate costs to better position
itself in the marketplace, your employment with the Company is ending and you
have been selected to receive an offer of severance benefits in exchange for
signing a release and waiver of claims. In connection with the severance
program, you are being provided with information as to: (i) any class, unit or
group of individuals covered by such program, any eligibility factors for such
program and any time limits applicable to such program; and (ii) the job title
and ages of all individuals eligible or selected for the program, and the ages
of all individuals in the same job classification or organizational unit who are
not eligible or selected for the program.

The Company determined that all employees in the classes, units or departments
in the chart below would be eligible for the severance program. All persons who
are being terminated in this reduction in force have been selected for the
program and their job titles and ages have been indicated in the chart below.
The job titles and ages of individuals who were not selected for the program are
also indicated in the chart.

Selected employees age forty or over shall have 45 days to consider the
Company's severance offer and may revoke their agreement to participate in the
program within seven days of their execution of an agreement. Selected employees
under age forty shall have seven (7) days to consider the Company's severance
offer and do not have a right of revocation.

<TABLE>
<S>                     <C>                                       <C>
Class/Unit/             Job Title and Ages of                     Job Title and Ages of
Department              Employees Selected                        Employees Not Selected
----------              ------------------                        ----------------------

General and             Chief Financial Officer* (42)             Controller (28)
Administrative          Office Manager (41)                       V.P. Business Development (39)

Clinical Development    Sr. Clinical Research Associate (30)      Sr. V.P. Clinical Development
                                                                  Development (57)

                                                                  Executive Administrative
                                                                  Assistant (30)
</TABLE>

* This individual is subject to an employment agreement.

                                      -8-

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