Active Biotech Presents New Data regarding the 57-57 SLE Project at American College of Rheumatology Meeting


Active Biotech (NASDAQ OMX Nordic: ACTI) has presented data regarding
the 57-57 project at the American College of Rheumatology (ACR)
Annual Scientific Meeting, a premier event for specialists in the
field of rheumatology, held in San Francisco October 24-29*.

In a completed Phase Ib trial twelve patients have been treated for
84 days at various dose levels of ABR-215757. The maximum tolerable
dose (MTD) for ABR-215757 was defined as 4.5 mg/day. The overall
safety profile throughout the study was very favorable.

In a subset of patients treated with 4.5 mg/day ABR-215757 the global
gene expression pattern was investigated at various time points after
treatment.  The new data presented indicate that treatment with
ABR-215757 modulates gene expression related to immune function.
Among these genes were a set of interferon (IFN) responsive genes,
the expression of which are often altered in SLE patients and may
contribute to the disease development. The results also suggest a
number of candidate genes that could be used to follow effects of
ABR-215757 in the further clinical development using RNA expression
analysis."These results confirm previous data and strengthens the role for
ABR-215757 as a future treatment of SLE", commented Tomas Leanderson,
President & CEO Active Biotech.


Lund, October 28, 2008

Active Biotech AB (Publ)

Tomas Leanderson
President & CEO


* For further information and to take part of the complete poster"Effect on Interferon-inducible Gene Expression Signature by
ABR-215757, a New Drug in Development for SLE", please visit
www.activebiotech.com .


About SLE and 57-57
SLE - Systemic  Lupus Erythematosus  (SLE) -  is a  disease that  can
cause inflammation  and  damage  to the  connective  tissue  in  many
different  organs.  The  disease,  which  progresses  in  "flare-ups"
interspersed by  relatively symptom-free  periods, primarily  affects
women of childbearing age. An  estimated 500,000 Americans have  been
diagnosed with SLE; however, surveys indicate that the prevalence may
be much higher.  The autoimmune attack  affects many different  organ
systems and may eventually lead to severe secondary symptoms, such as
kidney failure. Progress  and symptoms  of the  disease vary  widely,
depending on  the  organs affected.  Without  treatment, SLE  can  be
life-threatening.

The  57-57  compound  is  a  novel  oral  immunomodulatory  quinoline
compound for chronic treatment of SLE. A clinical Phase Ib trial  for
57-57 has been concluded and  the data are currently being  compiled.
The study proceeded to the highest permitted dose level in the  study
protocol to ensure that the documentation concerning the compound  is
as comprehensive as possible ahead of continued clinical development.
The Phase Ib study was a dose-escalation, multi-center study in which
the compound's safety was studied  using step-wise increases in  dose
levels. The  total treatment  duration  was 12  weeks and  the  study
principally   documented    the   candidate    drug's   safety    and
pharmacokinetic properties. In addition, various efficacy  parameters
were studied in the form of  biomarkers for disease activity. It  was
performed at three  hospitals in Sweden  - the Karolinska  University
Hospital  in  Stockholm,   Uppsala  University   Hospital  and   Lund
University Hospital, in addition to a number of clinics in Russia.
A Phase II/III trial is planned to start mid 2009.


About Active Biotech
Active Biotech AB (NASDAQ OMX NORDIC: ACTI), headquartered in Sweden,
is a biotechnology company with R&D focus on  autoimmune/inflammatory
diseases and cancer.  Projects in  pivotal phase  are laquinimod,  an
orally  administered  small  molecule  with  unique  immunomodulatory
properties for the treatment of multiple sclerosis, as well as ANYARA
for use in cancer targeted  therapy, primarily renal cancer.  Further
key projects  in  clinical  development  comprise  the  three  orally
administered compounds TASQ  for prostate cancer,  57-57 for SLE  and
RhuDex®  for  RA.   Please  visit   www.activebiotech.com  for   more
information.


Active Biotech is required under  the Securities Markets Act to  make
the information in  this press  release public.  The information  was
submitted for publication at 08:30 a.m. CET on October 28, 2008.


Active Biotech AB (org. no. 556223-9227)
P.O. Box 724, SE-220 07 Lund, Sweden
Tel +46 46-19 20 00
Fax +46 46-19 11 00