Characteristics of Copayment Offsets for Prescription Drugs in the United States

Manufacturer-sponsored drug coupon use and drug-switching behavior among patients with type 2 diabetes

BACKGROUND

Patients often use manufacturer-sponsored coupons to reduce their out-of-pocket spending. However, little is known whether coupon use is associated with medication-switching behaviors.

OBJECTIVE

To examine if using a manufacturer-sponsored coupon to initiate a medication is associated with patterns of medication-switching behaviors among patients with type 2 diabetes.

METHODS

Using IQVIA's retail pharmacy claims data from October 2017 to September 2019, we analyzed commercially insured patients with type 2 diabetes who had newly started taking the following noninsulin diabetes drugs: generic metformin (nearly no coupon use), Sodium-glucose Cotransporter-2 (SGLT2) Inhibitors (SGLT2, high coupon use), and dipeptidyl peptidase IV inhibitors (DPP-IV inhibitors, moderate coupon use). We assessed if drug-switching behaviors, defined as no switching, switching to a same-class drug, or switching to a drug in a different class, differed among patients who did and did not use coupons to initiate treatments. We performed multinomial logistic regression to estimate the probability of each switching type associated with patients' initial coupon use.

RESULTS

Among 9,781 patients in our sample, 83.7% of them initiated treatments with metformin, 8.2% with SGLT2, and 8.1% with DPP-IV inhibitors. The overall switching rate was the lowest for generic metformin (40%) than brand-name drugs (56%-57%). Among the brand-name drug users, patients who used a coupon to initiate these drugs were less likely to switch to any drug compared with patients without coupon use (SGLT2 = -18% [95% CI = -24% to -13%]; DPP-IV inhibitors = -9% [-16% to -2%]). These patients were also less likely to switch to drugs in other competing classes (SGLT2 = -16% [95% CI = -22% to -10%]; DPP-IV inhibitors = -9% [-16% to -2%]).

CONCLUSIONS

Patients who started their treatment with generic metformin had the lowest rate of drug switching. Using coupons to initiate brand-name drugs in classes with prevalent coupons was associated with reduced medication switching to other class drugs.

Characteristics of Prescription Drug Fills Using Pharmacy-Pharmacy Benefit Manager Discount Programs: The "GoodRx" Model

OBJECTIVES

This study aimed to characterize products using pharmacy-pharmacy benefit manager (PBM) discounts and to estimate the association among such discounts, prescription utilization, and out-of-pocket costs.

METHODS

This is a retrospective cohort study using IQVIA's Formulary Impact Analyzer, which contains anonymized, individual-level pharmacy claims representing US retail pharmacy transactions. We focused on 20 products with the greatest number of transactions using a pharmacy-PBM discount. Our unit of analysis was a treatment episode, defined as the length of time from an incident fill to no continuous use for 60 consecutive days after allowing for indefinite stockpiling. Outcome measures included products with greatest pharmacy-PBM discount use, characteristics of treatment episodes, and out-of-pocket costs with and without pharmacy-PBM discount.

RESULTS

Across all products, 3.82% of transactions and 7.69% of treatment episodes were accompanied by a pharmacy-PBM discount. Commonly discounted products included generic treatments for chronic disease (lisinopril, levothyroxine, metformin) and neuropsychiatric conditions (alprazolam, amphetamine, buprenorphine, hydrocodone). The median postdiscount out-of-pocket cost was >2.5-fold higher during treatment episodes with a discount than those without ($15.15, interquartile range [IQR] $8.53-32.00, vs $5.88, IQR $1.40-15.00). Median treatment episode duration was 249 days (IQR 132-418) with discount use compared with 236 days (IQR 121-396) without discount use, although treatment episodes that began with a discount had fewer transactions per treatment episode and were shorter (median 212 days, IQR 114-360) than those that did not (313 days, IQR 178-500).

CONCLUSIONS

Pharmacy-PBM discounts may foster market competition and improve access for under- and uninsured individuals; however, these programs may not generate savings for many insured individuals.

Patient perceptions of copay card utilization and policies

BACKGROUND

Copay cards are intended to mitigate patient out-of-pocket (OOP) expenses. This qualitative, exploratory focus group study aimed to capture patient perceptions of copay cards and copay adjustment programs (CAPs; insurers' accumulator and maximizer policies), which redirect the copay card utilization benefits intended for patients' OOP expenses.

METHODS

Patients with chronic conditions were recruited through Janssen's Patient Engagement Research Council program. They completed a survey and attended a live virtual session to provide feedback on copay cards.

RESULTS

Among 33 participants (median age, 49 years [range, 24-78]), the most frequent conditions were cardiovascular-metabolic disease and inflammatory bowel disease. Patients associated copay cards with lessening financial burden, improving general and mental health, and enabling medication adherence. An impact on medication adherence was identified by 10 (63%) White and nine (100%) Black respondents. Some patients were unaware of CAPs despite having encountered them; they recommended greater copay card education and transparency about CAPs.

CONCLUSION

Patients relied on copay cards to help afford their prescribed medication OOP expenses and maintain medication adherence. Use of CAPs may increase patient OOP expenses. Patients would benefit from awareness programs and industry - healthcare provider partnerships that facilitate and ensure access to copay cards.

Patterns of Manufacturer Coupon Use for Prescription Drugs in the US, 2017-2019

Importance

Although manufacturer-sponsored coupons are commonly used, little is known about how patients use them within a treatment episode.

Objectives

To examine when and how frequently patients use manufacturer coupons during a treatment episode for a chronic condition, and to characterize factors associated with more frequent use.

Design, Setting, and Participants

This is a retrospective cohort study of a 5% nationally representative sample of anonymized longitudinal retail pharmacy claims data from October 1, 2017, to September 30, 2019, obtained from IQVIA's Formulary Impact Analyzer. The data were analyzed from September to December 2022. Patients with new treatment episodes using at least 1 manufacturer coupon over a 12-month period were identified. This study focused on patients with 3 or more fills for a given drug and characterized the association of the outcomes of interest with patient, drug, and drug class characteristics.

Main Outcomes and Measures

The primary outcomes were (1) the frequency of coupon use, measured as the proportion of prescription fills accompanied by manufacturer coupon within the treatment episode, and (2) the timing of first coupon use relative to the first prescription fill within the treatment episode.

Results

A total of 36 951 treatment episodes accounted for 238 474 drug claims and 35 352 unique patients (mean [SD] age, 48.1 [18.2] years; 17 676 women [50.0%]). Among these episodes, nearly all instances (35 103 episodes [95.0%]) of first coupon use occurred within the first 4 prescription fills. Approximately two-thirds of treatment episodes (24 351 episodes [65.9%]) used a coupon for the incident fill. Coupons were used for a median (IQR) of 3 (2-6) fills. The median (IQR) proportion of fills with a coupon was 70.0% (33.3%-100.0%), and many patients discontinued the drug after the last coupon. After adjustment for covariates, there was no significant association between an individual's out-of-pocket costs or neighborhood-level income and the frequency of coupon use. The estimated proportion of fills with a coupon was greater for products in competitive (19.5% increase; 95% CI, 2.1%-36.9%) or oligopolistic (14.5% increase; 95% CI, 3.5%-25.6%) markets than monopoly markets when there is only 1 drug in the therapeutic class.

Conclusions and Relevance

In this retrospective cohort analysis of individuals receiving pharmaceutical treatment for chronic diseases, the frequency of manufacturer-sponsored drug coupon use was associated with the degree of market competition, rather than patients' out-of-pocket costs.

Assessment of Hypothetical Out-of-Pocket Costs of Guideline-Recommended Medications for the Treatment of Older Adults With Multiple Chronic Conditions, 2009 and 2019

IMPORTANCE

Most adults 65 years or older have multiple chronic conditions. Managing these conditions with prescription drugs can be costly, particularly for older adults with limited incomes.

OBJECTIVE

To estimate hypothetical out-of-pocket costs associated with guideline-recommended outpatient medications for the initial treatment of 8 common chronic diseases among older adults with Medicare prescription drug plans (PDPs).

DESIGN, SETTING, AND PARTICIPANTS

This retrospective cross-sectional study used 2009 and 2019 Medicare prescription drug plan formulary files to estimate annual out-of-pocket costs among hypothetical patients enrolled in Medicare Advantage or stand-alone Medicare Part D plans. A total of 3599 PDPs in 2009 and 3618 PDPs in 2019 were included after inclusion and exclusion criteria were applied. Costs associated with guideline-recommended medications for 8 of the most common chronic diseases (atrial fibrillation, chronic obstructive pulmonary disease [COPD], heart failure with reduced ejection fraction, hypercholesterolemia, hypertension, osteoarthritis, osteoporosis, and type 2 diabetes), alone and in 2 clusters of commonly comorbid conditions, were examined.

MAIN OUTCOMES AND MEASURES

Annual out-of-pocket costs for each chronic condition, inflation adjusted to 2019 dollars.

RESULTS

Among 3599 Medicare PDPs in 2009, 1998 were Medicare Advantage plans and 1601 were stand-alone plans; among 3618 Medicare PDPs in 2019, 2719 were Medicare Advantage plans and 899 were stand-alone plans. For an older adult enrolled in any Medicare PDP in 2019, the median annual out-of-pocket costs for individual conditions varied, from a minimum of $32 (IQR, $6-$48) for guideline-recommended management of osteoporosis (a decrease from $128 [IQR, $102-$183] in 2009) to a maximum of $1579 (IQR, $1524-$2229) for guideline-recommended management of atrial fibrillation (an increase from $91 [IQR, $73-$124] in 2009). For an older adult with a cluster of 5 commonly comorbid conditions (COPD, hypertension, osteoarthritis, osteoporosis, and type 2 diabetes) enrolled in any PDP, the median out-of-pocket cost in 2019 was $1999 (IQR, $1630-$2564), a 12% decrease from $2284 (IQR, $1920-$3107) in 2009. For an older adult with all 8 chronic conditions (atrial fibrillation, COPD, diabetes, hypercholesterolemia, heart failure, hypertension, osteoarthritis, and osteoporosis) enrolled in any PDP, the median out-of-pocket cost in 2019 was $3630 (IQR, $3234-$5197), a 41% increase from $2571 (IQR, $2185-$3719) in 2009.

CONCLUSIONS AND RELEVANCE

In this cross-sectional study, out-of-pocket costs for guideline-recommended outpatient medications for the initial treatment of 8 common chronic diseases varied by condition. Although costs generally decreased between 2009 and 2019, particularly with regard to conditions for which generic drugs were available, out-of-pocket costs remained high and may have presented a substantial financial burden for Medicare beneficiaries, especially older adults with conditions for which brand-name drugs were guideline recommended.

Factors Associated With Manufacturer Drug Coupon Use at US Pharmacies

Question

Why do manufacturers choose to offer coupons for some prescription drugs and not for others?

Findings

In this cohort analysis of 2501 unique brand-name prescription drug products, drug companies offered a coupon for approximately half of the drugs; coupons were likely to be used for later-in-class-entrant products with high total costs in settings where direct competitors also offered coupons. Coupon use was not associated with a given product’s mean out-of-pocket cost.

Meaning

Manufacturer-sponsored coupons were more likely to be used for high-cost later-in-class-entrant products facing within-class competition where coupon use is prevalent.

Importance

Drug companies offer coupons to lower the out-of-pocket costs for prescription drugs, yet little is known about why they do so for some drugs but not for others.

Objective

To examine whether the following factors are associated with manufacturer drug coupon use: (1) patient-cost characteristics (mean per-patient cost per drug, mean patient copay); (2) drug characteristics (generics availability or “later-in-class-entrant” drugs); (3) drug-class characteristics (in-class coupon use among competitors; in-class generic competition; in-class mean cost and copay).

Design, Setting, and Participants

This was a retrospective cohort analysis of anonymized transactional pharmacy claims sourced from retail US pharmacies from October 2017 to September 2019, supplemented with information derived from Medi-Span, Red Book, and FDA.gov. Data were analyzed from September 2020 to February 2021.

Main Outcomes and Measures

The primary outcome was availability of a manufacturer’s coupon. The secondary outcome was the mean proportion of transactions in which a coupon was used for each product.

Results

The sample of 2501 unique brand-name prescription drugs accounted for a total of 8 995 141 claims. Manufacturers offered a coupon for 1267 (50.7%) of these drugs. When the manufacturer offered a coupon, it was used in a mean (SD) 16.3% (20.3%) of the transactions. Within a drug class, higher mean total cost per patient was positively associated with the likelihood of coupon use (odds ratio [OR], 1.03 per 10% increase; 95% CI, 1.01-1.04), but higher mean patient copay was inversely associated (OR, 0.98; 95% CI, 0.97-0.99). For drug characteristics, single-source later-in-class-entrant products were associated with a greater likelihood of coupon use compared with first entrants and multisource brands (OR, 1.44; 95% CI, 1.09-1.89). The intensity of coupon use was associated with later-in-class-entrant products and the class mean per-patient cost (4.16-percentage-point increase; 95% CI, 1.20-7.13; 0.27 per 10% increase; 95% CI, 0.09-0.44). Drugs with a new in-class brand-name competitor had greater mean coupon use compared with drugs without a new competitor (10.2% of claims with a coupon vs 5.9%).

Conclusions and Relevance

In this cohort study of transactional pharmacy claims, higher mean per-patient total cost within a class was significantly associated with the likelihood of coupon use, but not patient out-of-pocket cost. Manufacturers’ coupons were more likely to be used for expensive later-in-class-entrant products facing within-class competition where coupon use was prevalent.