This is a proof of concept study asking if alkaline phosphatase injections can reduce acute inflammation in rheumatoid arthritis patients.
This is a proof of concept study to establish the safety of subcutaneous (sc) treatment and the efficacy of alkaline phosphatase (AP) in reducing specific pro-inflammatory cytokines during and after 3 days of twice daily s.c. treatment. A total dose of 12000 Units AP will be administered by 2000 IU s.c. injection twice daily for 3 days. Subjects will be closely followed for 8 days and regular clinical observations will be made during 3 months. Close out will be 3 months after initiation of treatment.
Study Type
INTERVENTIONAL
Allocation
NON_RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Enrollment
6
daily subcutaneous treatment with two injections of 2000IU bIAP for three days
Maidstone Hospital, Dept. Rheumatology
Maidstone, Kent, United Kingdom
blood level of the pro-inflammatory cytokines: TNFα and IL6
The anticipated effects of bIAP will be short lived, within 4 days. However, in order to capture durable clinical responses or any late adverse effects, patients will be followed through 3 months at weeks 2, 4, 8 and 12 incorporating trial observations with routine monthly care to reduce disruption to patients.
Time frame: 3 months
RA clinical status expressed as Daily Activity Score (DAS-28)
van der Heijde DM, van 't Hof MA, van Riel PL, Theunisse LA, Lubberts EW, van Leeuwen MA, van Rijswijk MH, van de Putte LB. Judging disease activity in clinical practice in rheumatoid arthritis: first step in the development of a disease activity score. Ann Rheum Dis. 1990 Nov;49(11):916-920
Time frame: 3 months
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