EXHIBIT 31.01

CERTIFICATION

I, Paul L. Berns, certify that:

1.                      I have reviewed this Amendment No. 1 to the annual report on Form 10-K/A of Allos Therapeutics, Inc.; and

2.                      Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report.