[logo] PIONEER Investments(R) August 7, 2008 VIA ELECTRONIC SUBMISSION Securities and Exchange Commission 100 F Street, NE Washington, D.C. 20549 Re: Pioneer Fundamental Growth Fund Application to withdraw post-effective amendment to Registration Statement on Form N-1A (File Nos. 333-89354 and 811-21108) Ladies and Gentlemen: Pursuant to Rule 477(a) of Regulation C under the Securities Act of 1933, as amended, Pioneer Fundamental Growth Fund (the "Registrant") hereby applies for the Commission's consent to the withdrawal of a post-effective amendment to a registration statement on Form N-1A pertainig to Pioneer International Equity Fund, incorrectly filed under the Registrant's registration number, File No. 333-89354, on July 29, 2008 (SEC Accession No. 0001174520-08-000007) (the "Amendment"). Pioneer International Equity Fund is a different registrant. The Amendment was filed under the Registrant's registration number as a result of a clerical error. No securities of Pioneer Fundamental Growth Fund were sold in connection with the Amendment. Kindly forward any questions about this application to the undersigned at (617) 422-4952 or Toby R. Serkin, Esq. at (617) 951-8760. PIONEER FUNDAMENTAL GROWTH FUND By: /s/ Christopher J. Kelley Christopher J. Kelley Assistant Secretary Pioneer Investment Management, Inc. 60 State Street Boston, MA 02109-1820 "Member of the UniCredit Banking Group, Register of Banking Groups."