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Triple DMARD therapy is more cost-effective than methotrexate monotherapy in treating rheumatoid arthritis, study suggests

Date:
October 27, 2013
Source:
American College of Rheumatology (ACR)
Summary:
Using a combination of three traditional disease-modifying antirheumatic drugs for treating recent-onset rheumatoid arthritis is not only more cost-effective, but results in better long-term worker productivity than a monotherapy approach using methotrexate, according to new research.

Using a combination of three traditional disease-modifying antirheumatic drugs for treating recent-onset rheumatoid arthritis is not only more cost-effective, but results in better long-term worker productivity than a monotherapy approach using methotrexate, according to new research presented this week at the American College of Rheumatology Annual Meeting in San Diego.

Rheumatoid arthritis is a chronic disease that causes pain, stiffness, swelling, joint destruction leading tolimitation in the motion and function of multiple joints. Though joints are the principal body parts affected by RA, inflammation can develop in other organs as well. An estimated 1.3 million Americans have RA, and the disease typically affects women twice as often as men.

Researchers in the Netherlands analyzed data on 281 patients with recent-onset RA who participated in a single-blinded, randomized clinical trial of RA therapies called the treatment in the Rotterdam Early Arthritis Cohort, or tREACH. The same group of researchers had proven that triple therapy of methotrexate, sulfasalazine and hydroxychloroquine was more effective at treating RA symptoms than methotrexate monotherapy, independent of corticosteroids. They examined the same set of data to find out how these therapies compared in cost-effectiveness.

"Sufficient data on efficient use of expensive drugs, especially biologic agents, are needed to be able to continue optimal rheumatic care in the future," says Pascal de Jong, PhD; Department of Internal Medicine, Erasmus MC, and lead investigator of the study. "Therefore, we investigated the cost- effectiveness of different initial treatment regimens within out tREACH trial."

Participants in the tREACH trial were randomly split into three groups, each given different induction therapy regimens. The first group of 91 patients received triple DMARD therapy, or 25mg of methotrexate per week, 2g of sulfasalazine per day, and 400mg of hydroxycholorquine per day, in addition to 120mg of intramuscular glucocorticoids once.

The second group of 93 patients received the same triple DMARD therapy with a tapered dose of oral glucocorticoids starting at 15mg per day. The third group of 97 patients received 25mg of methotrexate per week with a similarly tapered dose of oral glucocorticoids, starting at 15mg per day. Participants were 68 percent female and their average duration of having RA symptoms was 166 days. At the beginning of the study, 267 (95 percent) of the participants fulfilled the 2010 ACR Criteria for RA, 216 (77 percent) tested positive for anti-citrullinated protein antibodies, and 48 (17 percent) showed evidence of joint erosions.

Participants were examined every three months to assess their progress, including measuring disease activity scores and collecting data from the Health Assessment Questionnaire. After 12 months of therapy, the researchers also analyzed X-ray progression. In addition, data on the patients' quality adjusted life years (called QALYs), and direct and indirect costs were evaluated. QALYs express the influence of disease burden on patient's health over time. Living in perfect health for one year corresponds with a QALY of 'one', on the other hand a QALY of 'zero' reflects death. Direct costs are the costs of treatment and medical consumption, and indirect costs are the costs incurred by loss of worker productivity, such as days of work missed due to sick leave and unemployment.

Both direct and indirect costs were higher for monotherapy patients compared to those who received triple DMARD therapy. The researchers concluded that the difference in costs was due to the monotherapy patients requiring 40 percent more biologic drug usage due to the monotherapy's inadequate control of disease activity. The triple therapy patients also reported less long-term sick leave time, less unemployment time and fewer contract hours than the monotherapy patients.

QALY scores were 0.75 for the first triple therapy group, 0.76 for the second triple therapy group and 0.73 for the monotherapy group. Total costs (direct and indirect) per QALY were €12,710 for the first triple therapy group, €10,371 for the second triple therapy group and €17,357 for the monotherapy group. There was no difference between the corticostreinds regimes.

Based on this data, the researchers concluded that triple DMARD therapy is more cost-effective, and results in greater long-term worker productivity, than methotrexate monotherapy independent of corticosteroids, in patients with early-onset RA.

"We recommend triple DMARD therapy over methotrexate monotherapy in newly diagnosed RA patients, because of lower costs per QALY and in addition better worker productivity when triple DMARD therapy is compared with methotrexate monotherapy," says Dr. de Jong.

Patients should talk to their rheumatologists to determine their best course of treatment.


Story Source:

The above story is based on materials provided by American College of Rheumatology (ACR). Note: Materials may be edited for content and length.


Cite This Page:

American College of Rheumatology (ACR). "Triple DMARD therapy is more cost-effective than methotrexate monotherapy in treating rheumatoid arthritis, study suggests." ScienceDaily. ScienceDaily, 27 October 2013. <www.sciencedaily.com/releases/2013/10/131027123045.htm>.
American College of Rheumatology (ACR). (2013, October 27). Triple DMARD therapy is more cost-effective than methotrexate monotherapy in treating rheumatoid arthritis, study suggests. ScienceDaily. Retrieved October 2, 2014 from www.sciencedaily.com/releases/2013/10/131027123045.htm
American College of Rheumatology (ACR). "Triple DMARD therapy is more cost-effective than methotrexate monotherapy in treating rheumatoid arthritis, study suggests." ScienceDaily. www.sciencedaily.com/releases/2013/10/131027123045.htm (accessed October 2, 2014).

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