Trial Information

Treatment of B-CLL With Autologous IL2 and CD40 Ligand-Expressing Tumor Cells + Lenalidomide

Previously, some of the cancer cells were taken from the subject's body and separated in the
laboratory and a specially produced human virus (adenovirus) that carries the IL-2 gene was
put into the cells. Adenovirus is a common virus found in human respiratory systems. In its
normal state, it can reproduce and cause a respiratory infection. Respiratory illnesses
caused by adenovirus infections range from the common cold to pneumonia, croup and
bronchitis. This adenovirus has been changed in the laboratory so that it is not likely to
reproduce or cause an infection once it is in the body. The gene transfer method used in
this study tries to add copies of the IL2 gene that increases the immune response against a
tumor.

The rest of the cancer cells have been stimulated to express on their surface a substance
called the human CD40L. These substances (IL-2 and CD40L), already naturally present in the
body, are meant to help the immune system fight the cancer.

At the point that the doctor feels the subject should begin treatment on this protocol, the
treatment will be as follows:

The subject will begin taking Allopurinol by mouth at 300 mg and will continue taking
Allopurinol daily for 14 days. Allopurinol is also called Zyloprim and it will be taken to
prevent tumor lysis syndrome. Tumor lysis syndrome can be a serious condition that occurs
sometimes when cancer treatment is started. Tumor lysis syndrome can cause other medical
problems.

Two days after Allopurinol was started, the subject will begin taking Lenalidomide. The
Lenalidomide dose will be 5 mg taken by mouth daily. The subject should swallow the capsules
whole with water at the same time each day and should not break, chew or open the capsules.
Females of childbearing potential who are caring for the subject should not touch the
lenalidomide capsules or bottles without gloves. If a dose of lenalidomide is missed, it
should be taken as soon as possible on the same day. If it is missed for the entire day, it
should not be made up. If more than the prescribed dose is taken of lenalidomide and the
subject feels poorly, s/he should seek emergency medical care and tell the study staff right
away. The subject will get 1 cycle of drug per month. A max of a 28-day supply of the drug
will be provided at one time. If the subject has bad side effects the doctor may tell
him/her not to take the lenalidomide for a short time period or may be removed from the
study. Otherwise, the subject will continue daily dosing with Lenalidomide for approximately
1 year, until four weeks after the final vaccine.

Four weeks after the subject starts the Lenalidomide s/he will start to receive his/her
vaccines. The vaccine will be injected under the skin (also called subcutaneously). Normally
the subject will have the shots as an outpatient (no overnight stay in the hospital will be
required). S/he will receive the first five (5) shots at 2 week intervals. S/he will then
receive eleven (11) shots at 4 weekly intervals. In total, the subject may receive up to
sixteen (16) shots over a period of one year. As with the Lenalidomide if the subject has
bad side effects s/he may not receive his/her vaccines for a short period of time or may be
removed from the study. Otherwise, the subject will receive the vaccines on the schedule as
specified earlier in this paragraph. These shots must be given at the Methodist Hospital.

Following these injections, the doctor will follow the subject for 1 year after the last
shot to see how the subject is doing.

TESTS DURING AND AFTER EXPERIMENTAL TREATMENT:

A complete history and physical examination is necessary before the subject can be enrolled
in the study. A physical examination will also be performed each time s/he receives a shot
of the modified cells. The place on the subject's body where s/he had received the shots
will be examined during the physical exam.

Research Blood Samples:

Blood will be taken from a tube placed into the vein (IV). We will take blood samples at the
following time points: at study entry, week 0 when the subject starts Lenalidomide, weeks 2,
4, 6, 8, 10 and 16 and then every 4 weeks until week 60. The last blood sample will be at
one year after the last shot. We will do this to make sure that the Lenalidomide is working
correctly and to study how the modified cells are working in the body.

The amount of blood that will be obtained each time is approximately 2-3 tablespoonfuls,
which is considered to be a safe amount. If the subject has a central line (an IV line that
has been placed in a large blood vessel that is meant to be used for long periods of time),
the blood will be taken from it, so that extra "sticks" should not be needed. Additional
office visits may be necessary to obtain this blood. The maximum total amount of blood to be
collected from the subject is 40-60 tablespoons.

Other tests: If the subject is a woman who can get pregnant, she will have pregnancy
counseling and urine tests as long as she is taking lenalidomide. The test will be done at
the following times: 10-14 days before she starts lenalidomide; within 24 hours of starting
lenalidomide; weekly for the first 4 weeks of taking lenalidomide; and then every 4 weeks
for the remainder of the study. If her periods are irregular, she will have another
pregnancy test done at 2 weeks. The last test will be 28 days after she stops lenalidomide.

A bone marrow sample will be taken from the subject before and at the end of the vaccination
period to assess the response to the treatment.

In order to participate in this study, the subject must register into and follow the
requirements of the RevAssist ® program of Celgene Corporation (the company that supplies
Lenalidomide). This program provides education and counseling on the risks of fetal
exposure, blood clots and reduced blood counts that can occur when taking Lenalidomide. The
subject will be required to receive counseling every 28 days during treatment with
lenalidomide, follow the pregnancy testing and birth control requirements of the program
that are appropriate for him/her and take telephone surveys regarding your compliance with
the program. Participating in the RevAssist program is a study requirement.